Monday, September 30, 2019

Top 3 Leading Telecom Providers in the Philippines

Smart Communications, Inc. (Smart) Background Smart Communications, Inc. (Smart) is the Philippines' leading wireless services provider with 52. 1 million subscribers on its GSM network as of end-September 2012. Smart has built a reputation for innovation, having introduced world-first wireless offerings such as Smart Money, Smart Load, Smart Padala, the Netphone, and Smart LTE—the world’s first multi-band LTE service.Smart also offers 3G and HSPA+ services, while its satellite service, Smart Link, provides communications to the global maritime industry. Smart Broadband, Inc. , a wholly-owned subsidiary, offers a wireless broadband service, Smart Broadband, with 1. 69 million subscribers as of end-September 2012. Smart is a wholly-owned subsidiary of the Philippines' leading telecommunications carrier, the Philippine Long Distance Telephone Company. Programs Globe Telecom Inc. BackgroundGlobe Business is the corporate arm of Globe Telecom, the leading mobile telecommuni cations company in the Philippines. Globe Business provides wireless and wireline solutions for a diverse set of industries, businesses, and commercial enterprises. We assure affordable, reliable, and dependable services for all your communication needs. At Globe Business, we provide you solutions that fit. Globe Telecom has a very established history in telecommunications for both consumers and businesses.A pioneer in mobile telecommunications, Globe Telecom seeks to create and deliver products and services that bring customers closer to their aspirations, and connect them with the people and events that matter to them the most. Globe Telecom caters to more than 25 million people, along with 650,000 wireline and broadband users. The company also counts 100,000 businesses among its clients. Globe Business offers you wireless and wireline solutions that address all your company needs, ensuring your enterprise the highest possible profit for the lowest possible cost.

Sunday, September 29, 2019

Ethics in Research Essay

While conducting research or writing professional articles or papers, it is expected that one meets certain laid-down ethical guidelines. Ethics in research has become one of the most essential topics in academia, and areas of scientific dishonesty have been identified. In my opinion, the areas of scientific dishonesty should be ranked as follows, starting with the most serious to the least serious violation: 1. Fabrication and falsification 2. Plagiarism 3. Faulty data gathering procedures 4. Non-publication of data 5. Sneaky publication practices 6. Poor data storage and retention 7. Misleading authorship Fabrication and falsification of data is publishing information or basing research on events that did not occur at all (Reskin, 2010). Under falsification, overstated numbers, alteration of data, inclusion of personal biases and misinterpretation of literature are the forms of scientific dishonesty. When fabrication and falsification have been done, works produced do not have a basis or any truth in them; and therefore mislead the readers (Reskin, 2010). This could have very serious consequences; basing literature on lies therefore misinforming the public. It therefore comes first in the list. Plagiarism is the use of copyrighted materials or generally other people’s without acknowledging their contribution (Indiana University, 2004). It is very unethical not to give credit to people who struggled to produce work, and a researcher or a professional writer would be claiming to be the originator of the ideas if he or she does not acknowledge the actual producers of literature material. It comes second in my list of scientific dishonesties (Indiana University, 2004). Faulty data gathering is third, since if data collected is not precise or accurate, the conclusions are going to be force; and the effect is like that of falsification (Callahan, & Hobbs, 1998). At number four is non-publication of data, which occurs when data is suppressed. It is unethical to ignore exceptions even in cases where nothing conclusive has been established from research, since finding out nothing is just as important as finding out something. If the results are withheld, future researches may be conducted with the same mistakes (Callahan, & Hobbs, 1998). Sneaky publication practices come in at number five since it withdraws a large measure of integrity or authenticity of information (Gregory, 20003). At number six is poor data storage and retention practices since in this way, information, no matter how valuable, is easily lost, therefore undermining the impact of research and writing. I chose misleading authorship as the least serious area of scientific dishonesty through ethical violations knowing that since it gives people claim for projects they did not fully participate in; it does not have effect on the quality of information (Jefferies, 2004). Informed consent is a term used in the ethical or legal context to indicate that the consent a person gives regarding certain events or activities involving him or her meet certain minimum standards (Reskin, 2010). An informed consent is issued by a person to indicate that he or she is fully aware and that he or she clearly understands and appreciates the facts related to the event, its implications and finally, its long term impact. The purpose of informed consents is to make sure that people are not coerced or forcibly involved in activities against their wish. People must also be made fully aware of the procedures they are to be involved in; and the potential risks from such. People allowed to give informed consents must first be proved to possess properly functioning intuitive and mental faculties (Reskin, 2010). People who are impaired by factors and diseases such as mental retardation, potentially damaging mental illnesses, intoxication from substances like alcohol, acute sleep deprivation, Alzheimer’s disease or a being in a comma are not allowed to give informed consents. Without an informed consent, it would be ethically and legally wrong to perform some acts on an individual (Callahan, & Hobbs, 1998). People who are not in a position to give informed consents for either of the above mentioned reasons or by virtue of being too young generally have other people acting on their behalf give informed consents for them (Jefferies, 1999). For example, a parent or a guardian can give an informed consent relating to their children. The same applies for mentally incapacitated people or people in a comma; like a husband can give an informed consent on behalf of his wife when she is in a comma. Treatment of human subjects must be ethical and respectful at all times. The rights of human subjects are protected by the justice system; and there is a standing requirement that all research projects involving human subjects must first be approved by the Institutional Review Board (Gregory, 2003). Federal Law also has provisions to protect human subjects from abuse by researchers, and the American Psychological Association (APA) has well documented standards of ethics which researchers must abide by while handling human subjects (Gregory, 2003). The above guidelines are meant to ensure that human specimens are treated with the respect they deserve and are not exposed to risks without their consent. It is required that they be informed of all the details of research procedures, the risks that may arise and any potential long term effects of the research (Callahan, & Hobbs, 1998). The research must also be tailored in such a way that it benefits them in one way or another. Their justice should also be assured. Investigators or researchers first have the responsibility of making sure that they study the ethical acceptability of procedures they intent to apply on human subjects; and they must also respect a human subject’s wish to accept or decline involvement in a research, and their choice to withdraw if the need arises (Callahan, & Hobbs, 1998). If undesirable side effects result, it is the responsibility of the researcher to remedy the situation. Animal subjects, despite the fact that they cannot give informed consents, also have rights which are protected; and their use in research is also governed by some ethical standards. First of all, the use of animal subjects in research should be justified (Reskin, 2010). Animals should not be used in projects that are not going to yield anything useful to the human society. Secondly, animal subjects should be properly handled. Any studies conducted on them should not alter their natural functionality or harm them in irreversible ways. Proper living environments and sufficient food should be provided to animals under captivity, and animals should only be handled by sufficiently trained personnel (Reskin, 2010). Research should be optimized to reduce pain and harm on animal subjects, and it is important that the animals are legally acquired and the research given the go ahead by the authorities. It is also an ethical requirement that humane treatment of animals in research institutions is ensured at all times (Reskin, 2010). Animal rights activists have been on the forefront of campaigning for the abolition of vivisection, or at least humane treatment of animal subjects. References Callahan, T. , & Hobbs, R. (1998). Research Ethics. Retrieved May 8, 2010, from http://depts.washington. edu/bioethx/topics/resrch. html Gregory, I. (2003). Ethics in Research. New York: Continuum. Indiana University. (2004). Plagiarism: What it is and How to Recognize and Avoid it. Retrieved May 9, 2010, from http://www. indiana. edu/~wts/pamphlets/plagiarism. shtml Jefferies, S. (1999). Ethical Issues in Research. Retrieved May 9, 2010, from http://www. cwu. edu/~jefferis/PEHL557/pehl557_ethics. html Resnik, D. (2010). What is Ethics in Research & Why is It Important? Retrieved May 8, 2010, from http://www. niehs. nih. gov/research/resources/bioethics/whatis. cfm

Saturday, September 28, 2019

Hydraulic Fracturing Essay Example | Topics and Well Written Essays - 1000 words

Hydraulic Fracturing - Essay Example Apart from that, the chemicals also prevent corrosion of tools being used, control pH and kill bacteria. Propponants, on the other hand, include frac sand and bauxite and they are usually useful in preventing opened fractures from collapsing (King). Generally, the process has been hailed as a great advancement in the energy sector since it has made it possible for oil and natural gas reserves that in the past were difficult to reach be easily tapped..While some section of people heap praises on the process, another section is quick to point out the risks and hazards that the process posses to the environment and human health (Hassett and Mathar). This paper seeks to support the opinion that the benefits of the process outweigh the risks. Benefits of Hydraulic Fracturing After participating in the class debate and carrying out further research, I am of the opinion that the economic benefits derived from the hydraulic fracturing process outweigh the risks and hazards associated with it . Firstly; the process has lead to increased production of oil and natural gas and thereby increasing employment opportunities in the energy sector. ... Apart from that, increased production of natural gas and oil has resulted to a decrease in the prices of the same enabling energy to be cheaply accessed (American Forum). In addition to that, increased production of natural gas means increased usage of clean energy. It is important to note that natural gas usage reduces the production of greenhouse gasses as it is pollutant free. As more natural gas is produced, electricity plants that previously used coal are starting to embrace natural gas since it is cheaper thus ensuring a cleaner environment because natural gas does not emit pollutants (Hassett and Mathar). Increased usage of natural gas will come as a relief to all stakeholders in the mitigation of climate change (American Forum). Concerns raised about Hydraulic Fracturing During the debate, several concerns about the environmental impact of the process were raised, it was argued that the resulting fractures after the process might rub up to the shallow rocks that hold water us ed for human consumption thereby contaminating it. In addition to that, it was stated that in case the wall’s casing failed, the fluids used in the process would come in contact with underground water and contaminate the supply of domestic water. The fluids also risked spilling over the surface thus contaminating surface water (King). This Contaminated water posses a huge threat to the health of people and animals that may consume it since most companies using the process never reveal the chemicals used in it (Hasset and Mathur). The opposition thus strongly insisted that hydraulic fracturing process should be eliminated. More negatives impacts of the process such as the

Friday, September 27, 2019

To develop a Sub Brand concept proposal Essay Example | Topics and Well Written Essays - 2750 words

To develop a Sub Brand concept proposal - Essay Example an apple flavored sub brand of toothpaste for kids between 8 and 12 years of age. Already Colgate has two flavored varieties of toothpaste for the kids of this transition age group. They are the 2in1 Strawberry Flavored Toothpaste and the 2in1 Watermelon Flavored Toothpaste. Against this backdrop a third flavored toothpaste for the same age group can be regarded as a risk though. However it must be noted here that current market demand trends support such a third alternative for this age group rather than the other two age groups, i.e. 2 to 4 year olds and the 5 to 7 year olds. Thus this writer takes the position that a sub brand of 2in1apple flavored toothpaste for kids of the transition age group between 8 and 12. While the strategic analysis would follow mainly Aaker’s (2004) market management and planning model there would be a substantial amount of literature cited from various sources in support of the sub brand being proposed. Thus the outcomes of this paper would be determined by the degree of strategic analysis concerning the market, product, customer, price, cost, competition and brand loyalty-equity paradigms. The following outline of the strategic preparation for new product launches is what is followed at the Colgate and therefore has all the essential elements of marketing strategies for new products and brands. Segmenting the market according to customer base is perhaps very important at the very beginning of the design and planning process of a new brand. Branding concept requires Colgate marketing team to identify the particular market segment which is being targeted with the new brand (www.encyclopedia.com). The 2in1 apple flavored toothpaste for kids in the age group between 8 and 12 years of age could be expected to succeed at the initial launch with a reasonably well targeted marketing and advertising campaign. This market segment

Thursday, September 26, 2019

Recording and Analysing Information in HR Research Paper

Recording and Analysing Information in HR - Research Paper Example â€Å"HR information must include the educational history (degrees awarded), educational experiences (completion), past job experiences (post, position, and technical) or certifications and licenses† (Seta et al, 2005, p.391). The authors add that the assessors identify also has to be recorded by referring to facts and investigation strategies. Hence, it is clear that handling HR information is a highly complex process. The recording is the primary phase of HR management and this phase determines the level of efficiency of the whole system. Management theories strongly recommend that an organization must possess right employee volume so as to achieve maximum productivity levels and minimize wastage of resources. It is obvious that a firm cannot determine the potential employee volume unless it does not have deep employee information. As Becker and Gerhart (1996) point out, HR information also assists organizations to take decisions regarding recruitment, selection, training, promotion, and dismissal timely and properly. Effective recording of HR information is also necessary to perform applicant tracking, the process of mapping the entire recruiting activities of an organization. In addition to administrative benefits, the HR data aid an organization to effectively deal with labor relations planning and succession planning. Employment details and absence records are the two types organizations data collected within an organization. Both these sets of data are essential for a firm to ensure improved human resource management and thereby profitability. Employment details of a worker are necessary for an organization to evaluate his potential. Many organizations provide additional facilities to its employees including loans and other financial assistance. Majority of the firms allow such benefits to employees on the basis of their employment details.  

Relationship between the international law and Sultanate of Oman's Essay

Relationship between the international law and Sultanate of Oman's municipal law - Essay Example Oman has a history of using the Sharia law that is given the priority as the basis of legislation and customary obligations in this society. Although the Oman’s Sultanate law has attempted to harmonize their laws to conform to the international laws, the country is depicted as a violator of the general law to which all nations are subject to. This has had an impact on Oman in that it has had a challenge in coping with other nations and the international law as a whole. This law system has garnered a wide range of interest from scholars intending to identify that this system of law has with the international law. The international law provides a framework for stable and well-grounded international relations between states and nations. These laws are consent based and states are not obliged to adhere to these laws unless they have opted to be bound by specific international legal clauses. Member countries that are abound by this law are also subjects of the International tribuna ls such as the international criminal court. International laws can be sourced either from treaties or customs in a nation that are generally accepted as basic in the world. Treaties constitute agreements between nations that decide to conduct their operations across their boundaries. On the other hand, customary laws, that form part of the international customary law, are developed from some internationally acceptable standards within countries (Beckman and Butte, 2012). They are sourced from the customs of the people in various nations. Unlike the other international laws, the international customary laws bind every state and they generally used in solution of crisis that seems to negate the standards laws that apply in all states. Sultanate Oman is an Arabian state located in the southern part of western Asia bordered by the United Arab Emirates. The legal system of this kingship is governed by the Sharia or Muslim laws that are often applied in the Sharia Law courts, the justice 's chambers. The customary law of Sultanate Oman was developed to regulate the human behavior in matters of inheritance, land ownership, marriages, social conflicts and cultural matters. Although the legal system is evident, the country allows some cultural issues to be handled in the traditional methods where a jury if formed by elders to mediate on specific matters of the community. Most customary laws and regulations are not documented and their application is personalized and their application is often personalized (OmaniLaw, 2013). The undocumented laws have raised questions about whether the Sultan Oman is a free state with a well-developed government system. The international law conflicts with the Sultane Oman customary Law on various grounds. One the of point where the two legal systems drift is the application of human rights that is subject to the Oman’s customary laws. The provisions of the international are that all members be from the Free states and such as a s tate must have a fully developed system and be regarded as a state by other states. Consequently, there is a general notion that Oman is a state that is not tied to the international law. However, the international customary law has all states as subjects and human rights is part of the core concern of the international customary law. One issue that has raised alarm in Oman as a country that pays less

Wednesday, September 25, 2019

LAW OF TORT Essay Example | Topics and Well Written Essays - 3500 words

LAW OF TORT - Essay Example Failure to protect others from harm as a result of somebody’s conduct is known as negligence whereby a duty care will have been ignored. Against this background, this section of the essay seeks to critically assess the standard care owed by professionals compared to the normal test. From the above definition of tort, it is clear that everyone has a duty care to make sure that their actions do not harm their neighbours. However, with regards to this normal test, it does not always follow that duty care is owed by the third party which may result in loss of something which requires the plaintiff to prove that the resultant loss has been a result of the action of the third party. This emanates from the assertion that every individual has duty care to the neighbour. Thus, negligence in common cases ought to be proved by the plaintiff that he or she has been injured or suffered losses as a result of the conduct of the third party. In this case, the relationship between the parties involved may not be very distinct, the reason why the plaintiff has to prove that he has suffered for him to claim for damages from that resultant injury which would be unprecedented. Tort of negligence in this particular scenario will involve third parties which may not be directly related. Contrary to the normal test of tort, the standard of care owed by professionals is a bit clear and distinct. With regards to professionals, the duty of care owed to the other people is clearly distinct in most cases. For instance, at the workplace, it is the duty of the manager or the supervisor to ensure that the employees are conducting themselves in a way that will not cause harm to them. It is mainly believed that when workers are at work within the company promises, they are under the custody of the employer hence anything bad that may happen to them will be owed to the employer. In such a scenario, it is the duty of the employer to ensure that the day of duty care vested in him is not brea ched since this will warrantee some form of compensation. In the same vein, the day of duty care for children at school is owed to the teacher because he is the one with direct responsibility with the conduct of the kids. In other words, they are under the custody of the teacher so the standard care in this case is the responsibility of the teacher. The teacher will have been entrusted to take good care of the children so it is his duty to fulfil this trust vested in him. In some cases, a medical practitioner like a dentist or surgeon has a duty of care to his patients. In the event that he breaches that duty which may result in injury, shock or even financial loss falls under the tort of negligence and the professional involved will be liable for paying compensation. It is the duty of the medical practitioner to ensure that he does not cause further harm to the patient who has vested her trust in him knowing that he will be able to assist him. For example, Lord McMillan in Bourhill v Young [1943] AC 92 (HL) suggests that the crude view that law should only take account of physical injury has been discarded and it now takes into consideration injury by shock. So in the event that a patient has been traumatised in the custody of a physician, he or she will be liable to sue for damages and ultimately compensation. It is only professional acts that are caught by the assumption of responsibility

Monday, September 23, 2019

Sample of personal statement Example | Topics and Well Written Essays - 1000 words

Sample of - Personal Statement Example Although their business was relatively small but it still taught me the importance of money and the need to manipulate money effectively. Those early memories have evoked my interest for the financial world. I have interned at the international trading department of Bank of China and at Huaxi Securities during the time of my placement. It was during these internships that I got first-hand experience of analysing the system from inside. The interest gradually translated into buying stocks in China. That proved to be a profitable experience in fact, as I successfully booked profits on those stocks. But my happy experience suffered a jerk when the news came about the mortgage and credit crisis. I realised that the networking of economies from around the world has led to proliferation of credit crisis in all connected economies. It all started off from US sub-prime crisis, leading to failure of couple of banks and the trend gradually spread to other countries. Despite best efforts from a round major economies to contain the damage, the credit crisis is far from over yet. I feel such situations are the best opportunities to learn more about the financial market management. This is the practical experience of the risk element associated with different types of investments in the financial market. ... Therefore, having studied mathematics during three years of under-graduation, I have prepared myself to learn more about the financial management jargon. The first two years learning of pure mathematics taught me the essential analytical skills and cultivate my logic thinking. I also took a few economics modules such as macro micro economics. I do realise that these are the basic knowledge tips of the economics but I am sure as I gain access to specialised knowledge base, it will help me in further polishing my skills. The masters at Leicester University will surely be the first major step in this direction. The undergraduate course in Mathematics has proved to be a big boost to my profile. The program allowed me to integrate theories and analytical skills learned in classroom with my regular job. Taking interactive lectures from learned and experienced professors has been one of the best experiences I've ever had. I want to continue this growth after I'm finished with the undergraduate course by completing the Masters program. After talking with other students, I realize that the masters program is an excellent opportunity to broaden my knowledge horizon in key realms of the finance and business field. These classes touch upon the related subjects in financial markets and business operations. I believe it is important not only to gain the theoretical knowledge about the subject but how the theory takes practical shape in business field is much more crucial. I am sure I'll learn these aspects during the course. I have got some exposure in industry during my internship placement at Bank of China and Huaxi Securities. While putting my mathematical knowledge to test, it made me realise the difference between objective and subjective ways of thinking.

Sunday, September 22, 2019

Effects of flicker on reading comfort (part 2) Essay

Effects of flicker on reading comfort (part 2) - Essay Example Two types of questionnaire, an initial questionnaire to identify the previous experience of discomfort and a symptom questionnaire were used. Results: The results indicated insignificant difference between discomforts caused by sustained reading and using computer. The condition of 50 Hz induced the greatest impact on reading comfort compared to DC. The most affected symptoms of discomfort were vision discomfort followed by eyestrain, blurred vision and headache. The mean difference of 75 Hz, 100 Hz and 140 Hz compared to DC lighting situation was not significant. Conclusion: The study shows that reading under 100 Hz LEDs light has no different effects on comfort than reading under LEDs light powered on DC. In addition, the study shows insignificant difference between discomfort induced by reading and by computer use in terms of incidence and nature. Further studies are required with larger and balanced sample size, different direction of illumination and longer period of reading tim e to address the possible limitations of this experiment. Methods Participants Students of the University of New South Wales (UNSW) were invited by posters and emails to participate in the experiment. Participants who completed the experiment received a nominal reward. The inclusion criteria were good binocular vision, lack of ocular and systemic abnormalities that possibly influence reading ability, and age had to be between 19 to 30 years old since light sensitivity often higher at this age group. The exclusion criteria were any known case of migraine or photosensitive epilepsy. A total number of 18 students were recruited (2 male and 16 female), all signed an informed consent form prior commencing the study. Ethics and the study protocol were reviewed and approved by the UNSW Human Research Ethics Advisory (UNSW HREA) Panel. Design and Procedure In a double masked randomized crossover study, discomfort symptoms were self-reported by using two types of questionnaires; an initial q uestionnaire and symptoms questionnaire. The participants had to attend five reading sessions under LED light, but with different rate of flicker in each session. They were randomly assigned to the sessions by Latin squares, and the reading sessions had to be separated by at least one day. At the beginning of the first session, the initial questionnaire had to be completed, whereas symptom questionnaire had to be filled immediately at the beginning and at the end of every session to evaluate reading discomfort. During the reading sessions, the ambient light was turned off, and the room was completely dark, so the only light source was that installed in lighting booth. The booth was positioned on a table, and a â€Å"twilight† novel was placed inside the booth directly under the light. Each subject had to read a part from the book on every session for 30 minutes with the habitual glasses. Comfortable sitting was enhanced by providing an adjustable chair placed in front of the booth to read with habitual reading posture. Questionnaires Two types of questionnaires were used in the study: the initial questionnaire and the symptom questionnaire. The initial questionnaire was designed to examine the previous experience of discomfort related to reading and computer use and to detect unknown cases of photosensitive epilepsy or migraine. The first part of the questionnaire was

Saturday, September 21, 2019

Analysis and Interpretation Essay Example for Free

Analysis and Interpretation Essay Data analysis and data interpretation are closely related, but have different meanings. Lets first define the meaning of the word data. Data is defined as factual information that can be used as a basis for reasoning, discussion, or calculation. There are several different types of data. It can also be defined as information output by a sensing device or organ that includes both useful and irrelevant or redundant information and must be processed to be meaningful. Now that data has been defined, in order to put together the meaning and uses of data analysis and interpretation, analysis and interpretation would need meaning and definition as well. Analysis is a word that is used to define separation or breakdown of something whole into its separate components. In reference to data, data analysis is a breakdown of information and facts that were compiled or processed to form data. Data analysis includes inspection of data, cleaning, transforming, and modeling data to form supportive information. Data analysis is a process that contains several phases. There are two parts that are clearly defined, that is initial and main data analysis. Data cleaning is a relevant procedure that is is used to ensure the high quality of data and the opportunity to make corrections to any incorrect or improper data. During this process data is documented, corrected, and saved. An example of data analysis would be individuals’ submitted answers to a survey or poll. Their submissions would be processed to form data. So all of their submissions would be the data analysis. The results of the poll or survey would lead to interpretation. Interpretation involves action. Data interpretation is applying statistical procedure to analyze specific facts from a study of body of research. It is the act or result of interpreting. It can be described as an explanation of results or reasoning. Interpretation is used to define data or justify actions due to received data. It is often used in the same sense as the word translation or decoding. Initial data analysis is the process of taking collected or gathered data, process it and develop conclusions and useful information. There are some guidance questions that can be used to frame this process. The first question is, what is the quality of the data,. The quality of data is very pertinent to leading to the interpretation of data. We would want to review the quality of the data as early on in the process as possible. Next, we want to know the quality of measurements. According to the data being used, we want to be sure to use the proper method of measurement for accuracy. Keeping in mind, the intentions and purpose of collecting the data, we should check the success of data analysis. If the purpose was not met, one should check data sampling and make sure none of the data was compromised to manipulate the results. If the process was successful, the results can be interpreted in a form that will present either a confirmation or exploratory approach. It is best to do this prior to collecting the data. Confirmatory would present clear hypotheses about the data, while exploratory can involve multiple models used to find ideas for a theory, but not to test that theory. Confirmatory can be used to test theory and can prove to be more informative. Interpretation of data involves taking the raw facts, explaining the meaning or significance of data gathered. When the data is gathered and has been analyzed, one can take the findings and process them to have meaning. What that analyzed information means is the interpretation. There are different examples of data analysis and interpretation. As mentioned earlier, poll and survey, research studies of data samples. The results of data interpretation can be presented as a number, a statement, an explanation, or visually on a chart or graph for easier comparison. This method can be said to be a correlation method. This occurs when two or more sets of data are compared to see if there is in fact some relationship between two or more sets of data. Descriptive statistics is another type of interpretation. Mathematically referred to as the average number in a set. This method is used to get an individual’s final grade, as an example. This can also be used as a guide on a growth/height chart. Referenced when many people shop to make sure they are not paying or offering above or below average. Regression coefficient is used to establish the cause of correlation or the relationship between two sets of data. Many professional employed by major companies, financial, medical, and, educational field use this method for different uses. Financial companies use data analysis and interpretation to set rates and increase productivity. Medical professionals perform data analysis on individuals and on large population of people. They use this information to keep up with average age, weight, or even regional location of a specific disease or disorder. Educators use data analysis and interpretation not only to evaluate existing or potential students, but also as a way to keep track of the enrollment of students. They track how many students enroll and transfer to another school, the graduation and dropout rate. They also are able to compile data to accommodate students and set tuition rate and introduce or discontinue certain courses. All three of the aforementioned fields, also use this data method to present themselves to the public. Their funding also depends upon the information gathered from research and planning according to their results of data analysis and interpretation. We see evidence of data analyst and interpretation numerous times a day. Insurance quotes, medicine dosage, gas prices, even the order in which items are placed on the shelves in grocery stores. A study has been done to find out how to make consumers spend more when they shop. Grocers and retailers have used this study to arrange their products and to make changes to their store layout, to become more appealing to shoppers.

Friday, September 20, 2019

Developing Natural Gas Sweetening Processes

Developing Natural Gas Sweetening Processes Introduction Natural gas contains large amounts of methane (CH4), but also all kinds of impurities such as sour gases (e.g., H2S and CO2). The acid gases in the natural gas should be removed to comply with environmental regulations and to avoid technological problems during gas transportation.1–3 For instance, dry ice or CO2 hydrate products can clog the system during liquefaction of the natural gas.2 Hence it would be beneficial to find an efficient and economical method for CO2 capture from natural gas. Amine-based natural gas â€Å"sweetening† (removal of sour gases) process is a widely used and mature technology. However, this process requires high energy for solvent regeneration and amines are corrosive and volatile which causes environmental pollution.1 In the past decade, ionic liquids (ILs) have emerged as a promising alternative to the amines due to their remarkable properties.4–6 Anderson et al.7 measured the solubility of various gases in the 1-hexyl-3-methylpyrolidium bis(trifluoromethylsulfonyl)amide [hmpy][Tf2N]. The solubility of the gases in [hmpy][Tf2N] at 298 K follows the trend: SO2>CO2>C2H4>C2H6>CH4>O2>N2. Similar gas solubility trends were observed in 1-hexyl-3-methylimidazolium bis(trifluoromethyl-sulfonyl)amide ([hmim][Tf2N]), 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]), and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([bmim][Tf2N]).8,9 Simple gases often interact weakly with the IL ions, hence the polarizability of the gases is reflected in the solubility behavior. Molecules that possess an electric quadrupole moment (such as CO2 and C2H4) show higher solubilities in ILs.10 From an application point of view, solubility data only is not enough to judge the separation performance of a solvent, instead selectivity data is essential. One of the first mixed gas solubilities was reported by Hert et al.11 The authors surprisingly found that an enhancement of CH4 solubility when both CH4 and CO2 were dissolved in [hmim][Tf2N] liquid. It was speculated that the enhancement in CH4 solubility was due to favorable dispersion interactions between dissolved CO2 and CH4, while the drop in CO2 solubility was due to a reduction in free volume caused by the absorption of CH4. Carvalho and Coutinho12 measured CO2/CH4 and H2S/CH4 solubilities in three ILs and proposed that the ionic liquid polarity is an essential parameter in the design of ILs with high CO2 selectivities. To design and optimize natural gas sweetening processes using ILs, mastering the important factors that dictate CO2/CH4 solubility as well as selectivity is essential. Shi and Maginn13 computed the mixed gas isotherms for the mixtures CO2/O2, SO2/N2, and CO2/SO2 dissolve in [hmim][Tf2N] and interpreted these mixed gas solubilities by energetic analysis. CO2 and SO2 interact more strongly with the anion than the cation due to stronger electrostatic interactions between the solute and the anion. N2 and O2 interact weakly with the ionic liquid and show little difference in interaction energy between the cation and anion. Thus CO2 and SO2 compete with each other in dissolution, while CO2 and O2 dissolve independently.13 However, there has no simulation motivated to address the unusual solubility behavior of CO2/CH4 mixtures in ILs. In this proposed research, molecular dynamics simulations will be utilized to investigate the enhanced solubility of CH4 in [hmim][Tf2N] in the presence of CO2.11 Also, with the aim of improving CO2/CH4 selectivity in ionic liquids, several other ILs described in the work done by Carvalho and Coutinho12 will be examined. These simulations could enable one to probe local structure of gases in ILs and energetics between different solutes and solvents, thereby give physical insight into the observed selectivity trends. The final goal is to find optimum structures of ILs that have satisfying performance in natural gas sweetening process. Research Question In this study, the solubilities of CO2/CH4 mixtures in four ILs will be investigated in order to understand the peculiar phenomenon of enhanced solubility of CH4 in the presence of CO2 in [hmim][Tf2N] and to understand the higher selectivity of CO2/CH4 in [bmim][Tf2N] as compare to that in 1-butyl-3-methylimidazolium methanesulfonate ([bmim][CH3SO3]) at molecular level. This work will be accomplished by classical molecular dynamics of systems consist of mixture gases with different molar ratios dissolve into four ionic liquids, [hmim][Tf2N], [bmim][Tf2N], [bmim][PF6] and [bmim][CH3SO3] respectively. The selectivities for different cases will be calculated and compare with experimental results at room temperature and at a pressure of 10 bar, which is a common operating pressure for natural gas sweetening process. Local electrostatic potential and radial distribution function of ILs will be computed to analyze the interactions between gas molecules and IL constituents and favorable abs orption sites. Test particle insertion method will be utilized to calculate the excess chemical potential of CO2 and CH4 in different ILs. With this systematic information, a solid conclusion about the physical reasons lead to high CO2/CH4 selectivity could be achieved. The cation effect and anion effect to the selectivity could be drawn from the results in cases of these four ILs. In addition, more extensive work could be conducted to predict the relationship between the IL structure and the trend of selectivity of CO2/CH4 mixtures in ILs. Significance of the Proposed Research The global natural gas demand is expected to increase 1.4% per year in the next 20~30 years.2 Of great industrial relevance, carbon dioxide capture is very important in the natural gas sweetening process. Ionic liquids, due to their outstanding properties, such as negligible vapor pressure, high thermal stability, nonflammability and high solvation capacity, are believed to be promising alternatives for conventional CO2 capture solvents. Especially, the large differences in pure gas solubility reported in the literature suggest that selectivity for gas mixtures could be high, making ILs a strong candidate for effective separation processes. It is possible to design many potential ILs by enormous combination of cations and anions and their functionalized ions. Therefore, the systematic study of different cation/anion combinations will provide us key parameters in the structure of ILs with high CO2/CH4 selectivity. However, measuring solubilities of gas mixtures is significantly more difficult than measuring pure gas solubilites.14 Therefore, molecular modeling is an efficient way to help understand solubility trends in ILs. Through this proposed study, we can gain physical understanding in the selectivity of mixture gases in ILs at a molecular level. An additional advantage is that the simulations enable one to probe micro structure and energetics, thereby giving useful insight into the source of selectivity trends observed. The proposed research will inspire experimentalists to design ILs with higher CO2/CH4 selectivity, thus apply it into industrial natural gas sweetening process. Proposed Studies Simulation Details: In this proposed research, I will perform systematic classical molecular dynamics simulations for systems representing CO2 and CH4 dissolve in [hmim][Tf2N], [bmim][Tf2N], [bmim][PF6] and [bmim][CH3SO3] ILs respectively. All simulations will be performed using the GROMACS15 program. Nose-Hoover temperature coupling will be used to set the temperature at 298 K and Parrinello-Rahman pressure coupling will be used to keep the pressure at 10 bar. Periodic boundary conditions will be applied in all directions. The cations and anions involved in this work are listed in scheme 1 with their molecular structures. Scheme 1. Molecular structures of the cations and anions used in this study. Force Field. In all simulations described in this study, ILs and CH4 will use the Canongia Lopes-PaÃÅ' dua16 and OPLS-AA17 force fields. Lennard-Jones parameters and the partial charges for CO2 will take from the TraPPE18 force field. The experimental C-O bond length (1.16 Ã…) and O-C-O bond angle (180ËÅ ¡) are fixed during simulations. The TraPPE model has been effectively used for predicting CO2 absorption in various ILs.13,19–22 Thus, all the force field parameters are available. Pure Gas Absorption. The pure gas absorption for CO2 and CH4 will be computed following the method published by Huang et al.23 The initial configuration of the IL/CO2 or IL/CH4 binary system will be prepared from two independent bulk phase subsystems. The IL phase consists of 256 ionic pairs, and the gas (CO2 or CH4) phase initially has 216 molecules. Both IL phase and gas phase will first be equilibrated by a 1 ns NPT simulation at 298 K and 10 bar. Then the two subsystems will be concatenated along the Z direction to form a sandwich like simulation box with the gas phase in the middle. Some gas molecules are going to be removed in order to fit the cross section between the gas phase and IL phase. An energy minimization process is necessary to prevent steric hindrances in the combined system. The generated system then undergoes a 20 ns NPT equilibration run to allow gas molecules to diffuse into the IL phase. In order to improve sampling, five uncorrelated phase points will be colle cted from a successive 500 ps NPT run. Figure 1 shows a typical configuration of the equilibrium simulation box. These five configurations are used as initial coordinates for five 300 ps production runs in microcanonical (NVE) ensemble. The last 200 ps trajectories of each NVE simulation are used to collect data. Figure 1. A snapshot of the equilibrium state of the simulation box.23 Mixed Gas Absorption and Selectivities. As described above, the only thing different for mixed gas absorption from the pure gas absorption is the gas phase contains two kinds of gas molecules, CO2 and CH4. In order to test the feed ratio effect, the molecular numbers of CO2 and CH4 are set to two distinct ratios, 1:9 and 1:1, which are the gas mixture compositions in ref. 11. As observed by ref. 11, only tiny amount of CO2 could enhance CH4 solubility. The numbers of gas molecules can be easily obtained from the five final trajectories. Thus the mole fractions of CO2 or CH4 to ILs can be computed. Simply, the solubility is computed in terms of molar fraction by or , where x means the molecule number in IL phase. With the mole fractions of CO2 and CH4 in gas mixture/IL system, the selectivity for CO2 over CH4 can be computed as ,13 where x means the molecule number in IL phase and y means the molecule number in the initial gas phase. This is the first goal of this research that aiming to confirm and predict the solubilities and selectivities of CO2 and CH4 gas molecules in different ILs. These data can also be used to validate the simulation method. It should be reasonable to expect that the above mentioned modeling procedure is capable of yielding good estimations of mixed gas absorption. Radial Distribution Functions. The RDFs for pure liquid structures, gas/IL binary structures and mixed-gas/IL ternary structures can be calculated from the production simulations in NVE ensemble. Previous results23 showed that even though considerable amounts of CO2 diffused into the IL phase, the structure changes of the IL were small. However, the cases of CH4 gas diffuses into the IL phase have to be examined as well as the cases for CO2/CH4 gas mixtures dissolve in ILs. Therefore, the RDFs could tell us whether the structure will change significantly or not during the co-solvation process of CO2 and CH4 molecules. Previous studies concluded that CO2 preferentially interacts with anions in ILs.5,8,13,23,24 However, little knowledge is known about the structure correlation for CH4 with cations and anions in ILs. Especially, the locations of CH4 molecules in ILs in the presence of CO2 would be very interesting. From the NVE simulations, the Coulomb and Lennard-Jones potentials between different energy groups could be obtained. The energetic analyses could help explain the spatial distribution of CH4 and CO2 molecules in ILs. In addition, by comparing the relative interaction energies between solutes and the cations, anions and other dissolved solutes, one can understand which interaction makes CH4 more dissolvable in [hmim][Tf2N] when in the presence of CO2. Local Electrostatic Potentials. Although the liquid is neutral in total charge, the local electrostatic environment within the first solvation shell of CO2 or CH4 molecule may have important effect on the solubility and selectivity performance.21 At any given time during the production runs, the position of each absorbed gas molecule can be determined. Also the surrounding atoms within , 1.5 nm, can be identified. Therefore, the local electrostatic potential U for a given absorbed gas molecule (x, y, z) can be calculated by: where na is the number of surrounding atoms, qn,i is the partial charge on each surrounding atom, rn,i is the distance from each atom to the center carbon atom of absorbed gas molecule. Analyzing the distribution of local electrostatic potentials for CO2 and CH4 together with the selectivities, the relation between local electrostatic potentials can selectivities can be built. Based on the fact that CO2 has a large quadrupole moment, CO2 molecule should be affected strongly by the local electrostatic potential. The more negative the local electrostatic potential is the higher preference for CO2 selectivity.21 I expect that the highest selectivity IL [bmim][CH3SO3] will give more negative distribution of local electrostatic potential as compare to other ILs. Solvation Free Energy. In order to have more evidences for energetic analysis of the interactions between CO2/CH4 and ILs, Widom particle insertion method25 is utilized to determine the excess chemical potential of the solutes under study. The key quantity characterizing a solute in the solvation process is its solvation free energy, that is, the free energy necessary to insert the solute from pure ideal gas phase into solution. The solvation free energy per solute is equal to the excess chemical potential of the solute. In the case of an NPT ensemble the excess chemical potential can be written as26 where is the potential energy between the solute and the solvent, V is the volume of the system, =1/, and the angle brackets denote an isobaric-isothermal average over trajectory of the system without solute. For each IL, the equilibration trajectory of pure IL in NPT ensemble is needed. Because test particle insertion method in GROMACS is currently limited to inserting a single charge group, the excess chemical potential of CO2 and CH4 can only calculated one at a time. At least, we can get information about the relative affinity of CO2 to ILs and CH4 to ILs. Thus the CO2/CH4 selectivities in different ILs could be compared using all the aforementioned methods. In summary, the solubilities and selectivities of CO2 and CH4 pure gas and gas mixtures in four ILs will be calculated. The deep reasons that determine the CO2/CH4 selectivity will be investigated. Although only four ILs, [hmim][Tf2N], [bmim][Tf2N], [bmim][PF6] and [bmim][CH3SO3], are under this proposed research, we can expect to find out the anion effect to CO2/CH4 selectivity. By studying the spatial structure, interaction energy, local electrostatic potential and excess chemical potential, this work will contribute to the IL society with the first molecular dynamics simulation of CH4 dissolves in ILs and CO2/CH4 gas mixture dissolves in ILs.

Thursday, September 19, 2019

Aphorisms :: essays papers

Aphorisms "Aphorism - a brief statement of truth." This is the dictionary definition of an aphorism. I see an aphorism as a quote that you can relate to personally. An aphorism is a fact about life. But is an aphorism always a fact, or is it sometimes an opinion too? Sometimes you might not even agree with what an aphorism says. It depends on who you are and what type of personality you have. The first aphorism which I would like to discuss is, "'Stay' is a very common word in a friend's vocabulary," by Bronson Allcott. This aphorism is one that I definitely agree with. You don't want friends who aren't going to be there for you at times when you need them the most. You want friends who stay with you and won't leave you alone, no matter what the circumstances are. Even if you and your friend get into a fight, you never want your friend to leave you forever, even if what they did to you was really wrong. They'll always be your friend no matter what and you and that person need to realize that and stick together. Take two kids, for example, who have been best friends since the first grade. Later in high school, one of the two friends is heading downhill with their life. This is a time when the friend needs the other friend the most. If the other friend isn't there for them, then it can be really hard. We depend on our friends to help us out. A second aphorism is, "It is easier for a camel to pass through the eye of a needle if it's been through a blender first," by Les Barker. This aphorism is very true also. Once you've been through some really tough times, the impossible is now possible. You should be able to accomplish anything now. For a third aphorism, I chose, "If you come to a fork in the road, take it," by Yogi Berra. This is a really good aphorism. He's saying that if you come to a situation in life where you have different opportunities, make sure you take advantage of them, because who knows, it might be a once in a life time opportunity. Later on in life, you may be sorry for the choices you've made. "You can observe a lot by watching," another quote by Yogi Berra, is my fourth aphorism.

Wednesday, September 18, 2019

The Bennets: Experts in the Field of Inter-Family Conflict Avoidance :: essays research papers

The Bennets: Experts in the Field of Inter-Family Conflict Avoidance   Ã‚  Ã‚  Ã‚  Ã‚  Father looks across the dinner table and kindly asks his darling wife to pass the dinner rolls while Suzie is lovingly telling about her second grade teacher’s neat handwriting. The linen tablecloth is firmly pressed and the home-cooked meal is thankfully devoured. The yellow-checkered dinner plates are freshly washed, and the smell of lilacs from the garden drifts through the sunlit dining room. Billy smiles at his mother as he asks her if he could please have some more of her â€Å"deliciously home grown asparagus.† Mother nods to Billy and passes him the serving dish. When the family has had their fill, Suzie volunteers to do the dishes and Billy habitually clears the table and brings each of his parents a glass of dessert wine. Mother and Father then proceed to enjoy their wine as they talk of Beethoven and Monet.   Ã‚  Ã‚  Ã‚  Ã‚  This is a family without conflicts. Everybody dreams of one, nobody has one. It is impossible, and makes for a very unrealistic, and also a very boring, story. An imperfect family can be used in literature in order to make fiction believable and often more relative to the reader. By showing a character’s flaws, the author can add texture and depth to a story. Jane Austen definitely uses this idea in her famous novel: Pride and Prejudice. Not one of her characters is perfect. These flaws add drama to the plot in the same way that dressing adds flavor to a salad. The weaknesses of one character often foil the strengths of another: Lydia’s goofy foolishness has the affect of bringing out the sense and patience of Jane and Elizabeth. Mr. Wickham’s false personality and immoral behavior toward the Bennets proves Mr. Darcy’s truthfulness and emphasizes his kind and thoughtful personality.   Ã‚  Ã‚  Ã‚  Ã‚  Although faults often bring out the best in literature, a psychologist would suggest that the Bennets need some severe family counseling. Mr. and Mrs. Bennet should never have been married; they contradict the idea that opposites attract. Mr. Bennet had married because he was â€Å"captivated by youth and beauty, and [the] appearance of good humour which youth and beauty generally give†¦Ã¢â‚¬  (201) He married for the wrong reasons and suffers the consequences of his choice. Mrs. Bennet is described as an ignorant woman with weak understanding and an illiberal mind. Mr. Bennet is unhappy with the relationship as soon as the physical attraction wears off.

Tuesday, September 17, 2019

Fasting: Body Cleansing or Starving Essay -- Health Religion Papers

Fasting: Body Cleansing or Starving The Purpose of Fasting Fasting is a body cleansing procedure during which food is restricted and only liquids are consumed. Strictly water fasts are the most brutal; herbal teas and juices made from fresh fruits and vegetables are consumed during a more liberal fast. Juice fasting is the preferred method amongst many doctors and European fasting clinics, perhaps because it is less harsh than other treatment plans. Today in the Western Hemisphere, many chronic health problems result from bad eating habits. There are a mix of people who are over-nourished, malnourished, or both. We eat chemically altered, high-fat toxic foods that do not provide a sufficient amount of essential vitamins and minerals to our bodies. Clogging of the eliminative systems with excess mucous is thought to sustain congestive diseases. Ineffective digestion and poor nourishment result in vitamin and mineral deficiencies. A well-balanced diet can overcome this health crisis. A diet of raw foods and fluids helps cleanse the body, and fasting takes the cleansing a step further. Every fasting method, suited individually to a person’s needs, cleanses toxins from the person’s body. The nutrients in fresh juice provide energy and support to the body while stimulating the detoxification process by clearing waste from its systems. This detoxification process is an important corrective process in our nutritional cycle. We allow our body to breathe and naturally cleanse itself. (Haas) The Ancient Practice of Fasting The history of fasting goes back thousands of years. Many religions, including Christianity, Judaism, and Eastern religions used and still use fasting as a healing process for spiritual purifica... ...an Anti-Aging Strategy- Is it Still Safe? Found at www.healthy.net/library/articles/chaitow/fasting.htm. Chaitow, L. Fasting, Mono-diets and Raw Food Days.Found at www.healthy.net/library/books/chaitow/chap13.htm. Haas, E. Fasting. Found at www.healthy.net/hwlibrarybooks/haas/detox/fasting.htm. Kernt, P. et al, ‘Fasting: the history, pathophysiology, and complications" Western Journal of Medicine (1982) 137:379-99 Kjeldsen-Kragh, J. et al, ‘Controlled trial of fasting and one-year vegetarian diet in Rheumatoid Arthritis’ Lancet (1991) 899-904. NaturalDoc: Fasting and Health Vacations. Found at www.naturaldoc.com/. Protein and Nitrogen Homeostasis. Found at http://medtstgo.ucdavis.edu/endo/lecture/metProNit.htm True, G.N. How Fasting Can Slow You Down. Found at www.netasia.net/users/truehealth/Fasting.htm.

Device to Overcome Sense of Sight and Hear

SENSE OF SIGHT†¦. The eyes are sensory organs. They keep the brain updated with information about is what happening around the body. Both contain millions of tiny sensors that send messages along nerves to the brain. Sensors in the eyes respond to light and, through the brain, let us see the world. Sensors in the skin respond to touch and allows us to feel. * * * * The seeing eye†¦ Light enters the eye through the clear cornea. It then passes through the pupil and is focused by the lens on the retina. This thin layer covers the back of the eye and contains cells that are sensitive to light.When light hits the cells, they send signals to the brain. There, the signals are turned into pictures so we can see. Telescope†¦ A  telescope  is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation  (such as  visible light). The first known practical telescopes were invented in the  Netherlands  at the beginning of the 17t h century, using glass lenses. They found use in terrestrial applications and astronomy. Within a few decades, the  reflecting telescope  was invented, which used mirrors.In the 20th century many new types of telescopes were invented, including  radio telescopes  in the 1930s and  infrared telescopes  in the 1960s. The word  telescope  now refers to a wide range of instruments detecting different regions of the  electromagnetic spectrum, and in some cases other types of detectors. History†¦ The earliest recorded working telescopes were the  refracting telescopes  that appeared in the Netherlands  in 1608. Their development is credited to three individuals:  Hans Lippershey  and Zacharias Janssen, who were spectacle makers in Middelburg, and  Jacob Metius  of Alkmaar. 4]  Galileo  heard about the Dutch telescope in June 1609, built his own within a month,[5]  and greatly improved upon the design in the following year. The idea that the  ob jective, or light-gathering element, could be a mirror instead of a lens was being investigated soon after the invention of the refracting telescope. [6]  The potential advantages of using  parabolic mirrors—reduction of  spherical aberration  and no  chromatic aberration—led to many proposed designs and several attempts to build  reflecting telescopes. 7]  In 1668,  Isaac Newton  built the first practical reflecting telescope, of a design which now bears his name, the  Newtonian reflector. The invention of the  achromatic lens  in 1733 partially corrected color aberrations present in the simple lens and enabled the construction of shorter, more functional refracting telescopes. Reflecting telescopes, though not limited by the color problems seen in refractors, were hampered by the use of fast tarnishing  speculum metal  mirrors employed during the 18th and early 19th century—a problem alleviated by the introduction of silver coated g lass mirrors in 1857,[8]  and aluminized mirrors in 1932. 9]  The maximum physical size limit for refracting telescopes is about 1 meter (40  inches), dictating that the vast majority of large optical researching telescopes built since the turn of the 20th century have been reflectors. The largest reflecting telescopes currently have objectives larger than 10  m (33  feet). The 20th century also saw the development of telescopes that worked in a wide range of wavelengths from  radio  to  gamma-rays. The first purpose built radio telescope went into operation in 1937. Since then, a tremendous variety of complex astronomical instruments have been developed.How to use†¦ * Find an area where the items you wish to view aren't obstructed by trees to set up your telescope so that you get a clear view of the sky. * Look to see if your telescope has a polar axis. If it does, it will track whatever you are looking at. If you have a telescope with a polar axis, follow your manufacturer's directions on how to align the polar axis and the finder scope. * Select the eyepiece with the lowest magnification that you have. Always start with the lowest magnification eyepiece until you become more experienced in using your telescope. Locate the item in the night sky that you wish to observe and focus in on it. Move the planet or star you are viewing as close to the center of the field of view in the eyepiece as possible. * Remove the low magnification eyepiece and replace it with an eyepiece with a higher magnification. * Readjust the alignment of the telescope when the planet or star drifts out of view if you have a manual telescope mount. * Continue in this manner, observing different visible planets and stars. Binoculars †¦Binoculars,  field glasses  or  binocular telescopes  are a pair of identical or mirror-symmetrical  telescopes  mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most are sized to be held using both hands, although sizes vary widely from  opera glasses  to large pedestal mounted military models. Many different abbreviations are used for binoculars, including  glasses, nocs ,noculars ,  binos  and  bins. Unlike a (monocular) telescope, binoculars give users a three-dimensional image: for nearer objects the two views, presented to ach of the viewer's eyes from slightly different viewpoints, produce a merged view with an  impression of depth. History †¦ No sooner was the telescope invented in than the early 1600s than did astronomers get the idea of mounting two of them together, effectively inventing the first binoculars. Galileo (who is often falsely credited with having invented binoculars) adapted an earlier design, using optics that combined convex and concave lenses to create a magnifying effect just like that used today in the cheapest nonprismatic glasses marketed for sports or theater viewing, or for use by children.In the mid-1850s, Ignazio Porro of Italy patented a design using two prisms constructed in a Z shape to present the viewer with an image that not only is better magnified, but has depth. The Porro prism design was followed a few decades later by the roof prism, in which the prisms are constructed in one unit. Soon, binoculars were adapted for military use, and were employed during the Civil War. Quality made a big jump around the turn of the 19th century, and continued to be refined in the early 1900s. With the advent of World War II, more manufacturers entered the binoculars market, including, in the United States, Bausch ; Lomb.Germany continued with its production of highly regarded binoculars, with a few changes. For example, Zeiss, one of the top names in binoculars, experienced a confusing shift, with a new factory established in East Germany under Russian control with the Zeiss name while another factory named Zeiss was b egan exporting from West Germany, according to a history in the 1961 book Binoculars and Scopes and Their Uses in Photography, by Robert J. and Elsa Reichert. Japan exports binoculars via various manufacturers, and some U. S. ompanies import Japanese-made binoculars but sell them under the U. S. company name. How to use†¦ * Put the binocular strap around your neck. Wearing the neck-strap gives you the ability to use both hands while you are using the binoculars. * Adjust the barrels of the binoculars — each side you look into — to the width of your face. Generally, all you need to do is move the barrels closer together or further apart as you hold the binoculars up to your eyes. If you have adjusted the binoculars correctly, you should not see a black â€Å"border† when you look through the eyepieces. Locate the central focus wheel, usually in the middle of the two barrels of the binoculars. Turn the wheel slowly as you look at a particular object in the di stance to get the best focus for your eyes. * Fine-tune your viewing even more if you have a diopter focus mechanism on your binoculars. Not all binoculars have this focus element, which helps compensate for the difference in vision that you might experience in each of your eyes. The diopter focus adjustment wheel is usually on the right-hand barrel. * Keep both eyes open as you view your target objects.You might need to re-focus from time to time. * Clean your binoculars after using them. A soft, damp cloth is sufficient for the body of the binoculars. Treated tissue paper used to clean cameras and eye glasses is safe for wiping the lenses. Store binoculars in their carrying case when you're not using them. Microscope †¦ A  microscope  (from the  Ancient Greek:   ,  mikros, â€Å"small† and   ,  skopein, â€Å"to look† or â€Å"see†) is an  instrument  used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called  microscopy .Microscopic  means invisible to the eye unless aided by a microscope. There are many types of microscopes, the most common and first to be invented is theoptical microscope  which uses  light  to image the sample. Other major types of microscopes are the  electron microscope  (both the  transmission electron microscope  and the  scanning electron microscope) and the various types of  scanning probe microscope History †¦ The first microscope to be developed was the optical microscope, although the original inventor is not easy to identify. An early microscope was made in 1590 in  Middelburg, Netherlands. 1]  Two  eyeglass  makers are variously given credit:  Hans Lippershey   (who developed an early  telescope) and  Zacharias Janssen. Giovanni Faber  coined the namemicroscope   for  Galileo Galilei's compound microscope in 1625  [2]  (Galileo had called it the â€Å"occ hiolino† or â€Å"little eye†). How to use†¦. * When moving your microscope, always carry it with both hands (Figure 1, below). Grasp the arm with one hand and place the other hand under the base for support. * Turn the revolving nosepiece so that the lowest power objective lens is â€Å"clicked† into position (This is also the shortest objective lens). Your microscope slide should be prepared with a coverslip or cover glass over the specimen. This will help protect the objective lenses if they touch the slide. Place the microscope slide on the stage and fasten it with the stage clips. You can push down on the back end of the stage clip to open it. * Look at the objective lens and the stage from the side (Figure 2) and turn the coarse focus knob so that the objective lens moves downward (or the stage, if it moves, goes upward). Move it as far as it will go  without touching the slide! * 5.Now, look through the eyepiece and adjust the illuminator (or mirror ) and diaphragm (Figure 3) for the greatest amount of light. | | | * Slowly turn the coarse adjustment so that the objective lens goes  up  (away from the slide). Continue until the image comes into focus. Use the fine adjustment, if available, for fine focusing. If you have a microscope with a moving stage, then turn the coarse knob so the stage moves downward or away from the objective lens. * Move the microscope slide around so that the image is in the center of the field of view and readjust the mirror, illuminator or diaphragm for the clearest image. Now, you should be able to change to the next objective lenses with only minimal use of the focusing adjustment. Use the fine adjustment, if available. If you cannot focus on your specimen, repeat steps 4 through 7 with the higher power objective lens in place. Do not allow the objective lens to touch the slide! * The proper way to use a monocular microscope is to look through the eyepiece with one eye and keep the other eye op en (this helps avoid eye strain). If you have to close one eye when looking into the microscope, it's ok. Remember, everything is upside down and backwards.When you move the slide to the right, the image goes to the left! * Do not touch the glass part of the lenses with your fingers. Use only special lens paper to clean the lenses. * When finished, raise the tube (or lower the stage), click the low power lens into position and remove the slide. * Always keep your microscope covered when not in use. Submarine†¦ A  submarine  is a  watercraft  capable of independent operation underwater. It differs from a  submersible, which has more limited underwater capability. The term submarine most commonly refers to a large crewed autonomous vessel.However, historically or colloquially, submarine can also refer to medium-sized or smaller vessels (midget submarines,  wet subs),  remotely operated vehiclesor  robots. The adjective  submarine, in terms such as  submarine c able, means â€Å"under the sea†. The noun  submarine  evolved as a shortened form of  submarine boat(and is often further shortened to  sub). [1]  For reasons of  naval traditionsubmarines are usually referred to as â€Å"boats† rather than as â€Å"ships†, regardless of their size. Although experimental submarines had been built before, submarine design took off during the 19th century, and they were adopted by several navies.Submarines were first widely used during  World War I  (1914–1918) and now figure in many large  navies. Military usage includes attacking enemy surface ships or submarines,  aircraft carrier  protection,  blockaderunning,  ballistic missile submarines  as part of a nuclear strike force,  reconnaissance, conventional land attack (for example using acruise missile), and covert insertion of  special forces. Civilian uses for submarines include  marine science, salvage, exploration and facility inspec tion/maintenance. Submarines can also be modified to perform more specialized functions such as search-and-rescue missions or  undersea cable  repair.Submarines are also used in tourism, and for  undersea archaeology. Most large submarines consist of a cylindrical body with hemispherical (and/or conical) ends and a vertical structure, usually located amidships, which houses communications and sensing devices as well as periscopes. In modern submarines this structure is the â€Å"sail† in American usage, and â€Å"fin† in European usage. A â€Å"conning tower† was a feature of earlier designs: a separate pressure hull above the main body of the boat that allowed the use of shorter periscopes.There is a propeller (or pump jet) at the rear and various hydrodynamic control fins as well as ballast tanks. Smaller, deep diving and specialty submarines may deviate significantly from this traditional layout. Submarines have one of the largest ranges of capabilities in any vessel, ranging from small autonomous examples to one- or two-person vessels operating for a few hours, to vessels which can remain submerged for 6 months such as the  Russian  Typhoon class  Ã¢â‚¬â€œ the biggest submarines ever built and in use. Submarines can work at greater depths than are survivable or practical for human  divers.Modern deep diving submarines are derived from the  bathyscaphe, which in turn was an evolution of the  diving bell. History†¦ The first submersible of which we have reliable information on its construction was built in 1620 by  Cornelius Drebbel, a  Dutchman  in the service of  James I of England. It was created to the standards of the design outlined by English mathematician  William Bourne. It was propelled by means of oars. The precise nature of the submarine type is a matter of some controversy; some claim that it was merely a bell towed by a boat. Two improved types were tested in the  Thames  between 1620 an d 1624.In 2002 a two-person version of Bourne's design was built for the  BBC  TV programme  Building the Impossible  by  Mark Edwards, and successfully rowed under water at  Dorney Lake,  Eton. Though the first submersible vehicles were tools for exploring under water, it did not take long for inventors to recognize their military potential. The strategic advantages of submarines were set out by Bishop  John Wilkins  of  Chester, England, in  Mathematicall Magick  in 1648: 1. This private: a man may thus go to any coast in the world invisibly, without discovery or prevented in his journey. 2.This safe, from the uncertainty of Tides, and the violence of Tempests, which do never move the sea above five or six paces deep. From Pirates and Robbers which do so infest other voyages; from ice and great frost, which do so much endanger the passages towards the Poles. 3. It may be of great advantages against a Navy of enemies, who by this may be undermined in the wat er and blown up. 4. It may be of special use for the relief of any place besieged by water, to convey unto them invisible supplies; and so likewise for the surprisal of any place that is accessible by water. 5.It may be of unspeakable benefit for submarine experiment How it work†¦ The adaptations and inventions that allow sailors to not only fight a battle, but also live for months or even years underwater are some of the most brilliant developments in military history. In this article, you will see how a submarine dives and surfaces in the water, how life support is maintained, how the submarine gets its power, how a submarine finds its way in the deep ocean and how submarines might be rescued. Ultrasound scanning device†¦ Ultrasound  is a cyclic  sound  pressure wave with a  frequency  greater than the upper limit of the human  hearing range.Ultrasound is thus not separated from â€Å"normal† (audible) sound based on differences in physical properties, only the fact that humans cannot hear it. Although this limit varies from person to person, it is approximately 20  kilohertz  (20,000 hertz) in healthy, young adults. Ultrasound devices operate with frequencies from 20  kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasonic imaging (sonography) is used in human and veterinary medicine. In non-destructive testing of products and structures, ultrasound is used to detect invisible flaws.Industrially, ultrasound is used for cleaning and for mixing, and to accelerate chemical processes. Organisms such as bats and porpoises use ultrasound for locating prey and obstacles. Ultrasonics  is the application of  ultrasound. Ultrasound can be used for imaging, detection, measurement, and cleaning. At higher power levels ultrasonics are useful for changing the chemical  . History †¦ Acoustics, the science of sound, starts as far b ack as  Pythagoras  in the 6th century BC, who wrote on the mathematical properties of stringed instruments. Sir  Francis Galton  constructed  a whistle  producing ultrasound in 1893.The first technological application of ultrasound was an attempt to detect icebergs by  Paul Langevin  in 1917. The  piezoelectric effect  discovered by Jacques and Pierre Curie in 1880 was useful in transducers to generate and detect ultrasonic waves in air and water. [2]  Echolocation  in bats was discovered byLazzaro Spallanzani  in 1794, when he demonstrated that bats hunted and navigated by inaudible sound and not vision. How it works†¦ There are many reasons to get an ultrasound. Perhaps you're pregnant, and your obstetrician wants you to have an ultrasound to check on the developing baby or determine the due date.Maybe you're having problems with blood  circulation in a limb or your heart, and your doctor has requested a Doppler ultrasound to look at the blood flo w. Ultrasound has been a popular medical imaging technique for many years. Ultrasound  or  ultrasonography is a medical imaging technique that uses high frequency sound waves and their echoes. The technique is similar to the echolocation used by bats, whales and dolphins, as well as SONAR used by  submarines. In this article, we'll look at how ultrasound works, what type of ultrasound techniques are vailable and what each technique can be used for. Magnifying glass†¦ A  magnifying glass  (called a  hand lens  in laboratory contexts) is a  convex lens  that is used to produce a  magnified  image  of an object. The  lens  is usually mounted in a frame with a handle (see image). A  sheet magnifier  consists of many very narrow concentric ring-shaped lenses, such that the combination acts as a single lens but is much thinner. This arrangement is known as aFresnel lens. The magnifying glass is an icon of  detective fiction, particularly that of  S herlock Holmes. History †¦The earliest evidence of â€Å"a magnifying device, a convex lens forming a magnified image† was Aristophanes's â€Å"lens†, from 424 BC, a glass globe filled with water. (Seneca  wrote that it could be used to read letters â€Å"no matter how small or dim†). [1]  Roger Bacon  described the properties of a magnifying glass in 13th-century  England. Eyeglasses  were developed in 13th-century  Italy. How it works†¦ The  magnification  of a magnifying glass depends upon where it is placed between the user's eye and the object being viewed, and the total distance between them.The  magnifying power  is equivalent to  angular magnification  (this should not be confused with  optical power, which is a different quantity). The magnifying power is the ratio of the sizes of the images formed on the user's retina with and without the lens. [3]  For the â€Å"without† case, it is typically assumed that t he user would bring the object as close to the eye as possible without it becoming blurry. This point, known as the  near point,  varies with age. In a young child it can be as close as 5  cm, while in an elderly person it may be as far as one or two metres.Magnifiers are typically characterized using a â€Å"standard† value of 0. 25  m. The highest magnifying power is obtained by putting the lens very close to the eye and moving the eye and the lens together to obtain the best  focus. The object will then typically also be close to the lens. Sense of hearing†¦ Hearing,  auditory perception, or  audition  is the ability to perceive  sound  by detectingvibrations,  changes in the pressure of the surrounding medium through time, through an organ such as the  ear. Sound may be heard through  solid,  liquid, or  gaseous  matter. It is one of the traditional five  senses.The inability to hear is called  deafness. In humans and other vertebr ates, hearing is performed primarily by the  auditory system: vibrations are detected by the  ear  and transduced into nerve impulses that are perceived by the  brain  (primarily in the  temporal lobe). Like  touch, audition requires sensitivity to the movement of molecules in the world outside the organism. Both hearing and touch are types of mechanosensation. Stethoscope †¦ The  stethoscope  is an acoustic  medical  device for  auscultation, or listening to the internal sounds of an animal or human body.It is often used to listen to lung and  heart sounds. It is also used to listen to  intestines  and blood flow in  arteries  and  veins. In combination with asphygmomanometer, it is commonly used for measurements of  blood pressure. Less commonly, â€Å"mechanic's stethoscopes† are used to listen to internal sounds made by machines, such as diagnosing a malfunctioning automobile engine by listening to the sounds of its internal part s. Stethoscopes can also be used to check scientific vacuum chambers for leaks, and for various other small-scale acoustic monitoring tasks.A stethoscope that intensifies auscultatory sounds is called  phonendoscope. History†¦ The stethoscope was invented in  France  in 1816 by  Rene Laennec  at the  Necker-Enfants Malades Hospital  in  Paris. [1]  It consisted of a wooden tube and was monaural. His device was similar to the common  ear trumpet, a historical form of hearing aid; indeed, his invention was almost indistinguishable in structure and function from the trumpet, which was commonly called a â€Å"microphone†. The first flexible stethoscope of any sort may have been a binaural instrument with articulated joints not very clearly described in 1829. 2]  In 1840,Golding Bird  described a stethoscope he had been using with a flexible tube. Bird was the first to publish a description of such a stethoscope but he noted in his paper the prior exis tence of an earlier design (which he thought was of little utility) which he described as the snake ear trumpet. Bird's stethoscope had a single earpiece. [3]  In 1851, Irish physician Arthur Leared invented a binaural stethoscope, and in 1852 George Cammann perfected the design of the instrument for commercial production, which has become the standard ever since.Cammann also wrote a major treatise on diagnosis by auscultation, which the refined binaural stethoscope made possible. By 1873, there were descriptions of a differential stethoscope that could connect to slightly different locations to create a slight stereo effect, though this did not become a standard tool in clinical practice. The medical historian  Jacalyn Duffin  has argued that the invention of the stethoscope marked a major step in the redefinition of disease from being a bundle of symptoms, to the current sense of a disease as a problem with an anatomical system even if there are no noticeable symptoms.This r e-conceptualiization occurred in part, Duffin argues, because prior to the stethoscopes, there were no non-lethal instruments for exploring internal anatomy. [4] Rappaport and Sprague designed a new stethoscope in the 1940s, which became the standard by which other stethoscopes are measured, consisting of two sides, one of which is used for the respiratory system, the other for the cardiovascular system. The Rappaport-Sprague was later made by  Hewlett-Packard. HP's medical products division was spun off as part of Agilent Technologies, Inc. , where it became Agilent Healthcare.Agilent Healthcare was purchased byPhilips  which became Philips Medical Systems, before the walnut-boxed, $300, original Rappaport-Sprague stethoscope was finally abandoned ca. 2004, along with Philips' brand (manufactured by Andromed, of Montreal, Canada) electronic stethoscope model. The Rappaport-Sprague model stethoscope was heavy and short (18–24  in (46–61  cm)) with an antiquated appearance recognizable by their two large independent latex rubber tubes connecting an exposed-leaf-spring-joined-pair of opposing â€Å"f†-shaped chrome-plated brass binaural ear tubes with a dual-head chest piece.How to use†¦ * Clean off the earpieces before placing the stethoscope into your ears, especially if others share it or you seldom use it. In the hospital, earpieces are wiped with alcohol prep swabs. * Hold the chest piece between your palms to warm it before placing it on a person's chest. Thirty seconds is usually long enough to remove the chill. * Place the stethoscope into your ears. * Hold the chest piece in your hand. With the other hand, tap a finger against the chest piece and listen. Many stethoscopes have reversible heads, which can be incompletely swiveled and block sound. Grip the chest piece between your middle and index fingers to provide firm contact with the skin. * To minimize extraneous noises, avoid touching or rubbing the tubing or chest piece against clothing, bedcovers or hair. * Place the chest piece onto the part of the body you want to listen to. For the heart, this is a few inches above the left nipple. You should hear a steady â€Å"lub dub. † This is known as the apical pulse. * Store your stethoscope so that the tubing isn't kinked when you put it away. In hospitals, when stethoscopes are not being used, they're generally hung by their earpieces so that the tubing can dangle freely.Loudhailer†¦ A  megaphone,  speaking-trumpet,  bullhorn,  blowhorn, or  loud hailer  is a portable, usually hand-held, cone-shaped  acoustic horn  used to  amplify  a person’s voice or othersounds  and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. The megaphone increases the volume of sound by increasing the  acoustic impedance  seen by the  vocal cords,  matching  the impedance of the vocal cords to the air, so that more sound power is radiated.It also serves to direct the sound waves in the direction the horn is pointing. It somewhat distorts the sound of the voice because thefrequency response  of the megaphone is greater at higher sound  frequencies. Since the 1970s the voice-powered  acoustic megaphone  described above has been replaced by theelectric megaphone, which uses electric power to  amplify  the voice. History†¦ The initial inventor of the speaking trumpet is a subject of historical controversy, as both  Samuel Morland  and  Athanasius Kircher  lay claim to the device.Morland, in a work published in 1655, wrote about his experimentation with different horns and his most successful variant. This loudest horn was made of over 20 feet of copper and could supposedly project vocalizations as far as a mile and a half. [1] Twenty years earlier, Kircher described a device that could b e used for both broadcasting on one end and â€Å"overhearing† on the other. His coiled horn would be wedged into the side of a building, connecting a speaker or listener inside with the surrounding environment.Morland favored a straight, tube-shaped speaking device, where an initial sound would reverberate in waves through the instrument and gradually become louder. Kircher’s horn, on the other hand, utilized a â€Å"cochleate† design, where the horn was twisted and coiled, unlike Morland’s design. A later,  papier-mache  trumpet of special design was the Sengerphone. [2] The term ‘megaphone’ was first associated with  Thomas Edison’s instrument 200 years later. In 1878, Edison developed a device similar to the speaking trumpet in hopes of benefiting the deaf and hard of hearing.His variation included three separate funnels lined up in a row. The two outer funnels, which were six feet and eight inches long, were made of paper an d connected to a tube inserted in each ear. The middle funnel was similar to Morland’s speaking trumpet, but had a larger slot to insert a user’s mouth. [3] With Edison’s megaphone, a low whisper could be heard a thousand feet away, while a normal tone of voice could be heard roughly two miles away. On the listening end, the receiver could hear a low whisper at a thousand feet away. However the apparatus was much too large to be portable, limiting its use.George Prescott wrote: â€Å"The principal drawback at present is the large size of the apparatus. † Since the 1960s acoustic megaphones have generally been replaced by electric versions  (below), although the cheap, light, rugged acoustic megaphone is still used in a few venues, like cheering at sporting events,  cheerleading, and by  lifeguards  at pools and beaches where the moisture could damage the electronics of electric megaphones. How to use†¦ * Hold the megaphone several inches from your mouth with the small end toward you and the large end away from you. * Point the large end of the megaphone toward the crowd you wish to exhort. Speak loudly or shout into the small end. * Wait for the crowd's response, then repeat Step 3 as necessary. Sonar†¦ Sonar  (originally an  acronym  for  Sound  Navigation  And  Ranging) is a technique that uses  sound  propagation (usually underwater, as in  submarine navigation) to  navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name â€Å"sonar†:  passive  sonar is essentially listening for the sound made by vessels;  active  sonar is emitting pulses of sounds and listening for echoes.Sonar may be used as a means of  acoustic location  and of measurement of the echo characteristics of â€Å"targets† in the water. Acoustic location in air was used before the introduction of  radar. Sonar may also be used in air for robot navigation, and  SODAR  (an upward looking in-air sonar) is used for atmospheric investigations. The term  sonar  is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic) to extremely high (ultrasonic). The study of underwater sound is known as  underwater acoustics  orhydroacoustics.History†¦ Although some animals (dolphins and bats) have used sound for communication and object detection for millions of years, use by humans in the water is initially recorded by  Leonardo Da Vinci  in 1490: a tube inserted into the water was said to be used to detect vessels by placing an ear to the tube. [1] In the 19th century an underwater bell was used as an ancillary to  lighthouses  to provide warning of hazards. The use of sound to ‘echo locate' underwater in the same way as  bats  use sound for aerial navigation seems to have been p rompted by the  Titanic  disaster of 1912.The world's first  patent  for an underwater echo ranging device was filed at the British  Patent Office  by English meteorologist  Lewis Richardson  a month after the sinking of the Titanic,[2]  and a German physicist  Alexander Behm  obtained a patent for an echo sounder in 1913. The Canadian engineer  Reginald Fessenden, while working for the Submarine Signal Company in Boston, built an experimental system beginning in 1912, a system later tested in Boston Harbor, and finally in 1914 from the U. S. Revenue (now Coast Guard) Cutter Miami on the  Grand Banks  off  Newfoundland  Canada. 2][3]  In that test, Fessenden demonstrated depth sounding, underwater communications (Morse Code) and echo ranging (detecting an iceberg at two miles (3  km) range). [4][5]  The so-called  Fessenden  oscillator, at ca. 500  Hz frequency, was unable to determine the bearing of the berg due to the 3 metre wavelength and the small dimension of the transducer's radiating face (less than 1 metre in diameter). The ten  Montreal-built  British H class submarines  launched in 1915 were equipped with aFessenden oscillator. [6] During  World War I  the need to detect  submarines  prompted more research into the use of sound.The British made early use of underwater hydrophones, while the French physicist  Paul Langevin, working with a Russian immigrant electrical engineer,  Constantin Chilowski, worked on the development of active sound devices for detecting submarines in 1915 using quartz. Although  piezoelectricand magnetostrictive transducers later superseded the  electrostatic  transducers they used, this work influenced future designs. Lightweight sound-sensitive plastic film and fibre optics have been used for  hydrophones  (acousto-electric transducers for in-water use), while  Terfenol-D  and PMN (lead magnesium niobate) have been developed for projectors.How to u se†¦ * Install the transmitter. You'll usually have a choice between mounting the transmitter beneath the boat, to a trolling motor or atop the interior hull and letting it drop into the water. * Set the fish finding sonar's sensitivity while watching the display. When the sensitivity is too high, there will be static-like patterns on the display. If the sensitivity is too low, not even the bottom of the body of the water will appear on screen. * 3 * Determine the depth of the body of water. This will be a numeric value on the fish finder sonar system's display.This is important in helping you to determine how much fishing line to feed out from your pole. * Get accustomed to the display's representation of the body of water. The bottom will appear as a jagged, solid line near the bottom of your display. The surface of the water appears as a jumbled static-filled horizontal line at the top of your fish finder sonar system's display. * Learn to identify patterns on your display t hat are brush piles if you're fishing on a lake. Brush piles appear as blobs resting on the lake bottom.Fish such as bass hide out in brush piles, so consider fishing near these echoes. * Learn how to identify fish on your fish finder sonar system display with the fish symbols turned off. With the symbols turned off, fish appear as short curved lines above the bottom of the body of water. Adjust the fish finder sonar's noise filter if there are lines in your display that look like random static. * Remember what the fish finder sonar display was indicating when you catch a fish. This will help you to learn how to use your system to catch more fish later if you keep in mind what to look for.

Monday, September 16, 2019

Research Presentation Essay

Materialism – Jhingur judges himself by the value of his property as if this defines his character Quote: â€Å"Whenever Jhingur looked at his cane field a sort of intoxication came over him. He had bighas of land which would earn him an easy 600 rupees. And if God sawto it that therates went up then who could complain? Why should he worry about money? The merchants were already beginning to fawn on him. † From the beginning we seem to focus on the character of Jhingur that seems to value wealth over what may be for himself and his community. Instead of focusing on how his work can positively affect his life, he focuses on the negative. His focus is on his need to make money from his fellow farmers as possible, believing himself to be the better person. Social Issues Explotation Both men are propelled into acts of vengeance that it ultimately destroyed both of their fortunes. This derived from a primitive need for the characters to compete against each other. The material desires at the end have blinded them, and they may never see the true value of life. They brought about their own destruction. The core of this story lies a lesson on how materialism can impair our ability to see what is best for our life. In the period during which India evolved from colonial domination to independence, Tagore and Premchand were pioneers in Modern Indian literature. Their literary works pioneered social issues and the social structure of India that concentrated on the oppressed, human emotions, destruction, oppression of women and life. These authors proved that they can focus on the psychology of the characters instead of social realism. We will explore the context of the stories through the characters journey’s and struggles and unfortunate consequences in the end. â€Å"Punishment† portrayal of the complex relationships among the members of the Rui family and how tragedy can delve into real issues that we have hidden. â€Å"The day on which our story begins was like this†¦.. That day, Dukhiram and Chidam had been working near the zamindar’s office. On a sandbank opposite, paddy had ripened. The paddy needed to be cut before the sanbank was washed away, but the village people were busy either in their own fields or in cutting jute: so a messenger came from the office and forcibly engaged the two brothers. As the office roof was leaking in places, they also had to mend that and make some new wicker wood panels: it had taken them all day. † (p. 893) Two peasant brothers and their wives share a house together. The short-tempered, sloppy wife, Radha, is killed by her husband, Dukhiram, in a fit of anger for failing to prepare the evening meal. The village chief intrudes on the scene immediately following the murder, and the other brother, Chidam, unintentionally identifies the beautiful wife, Chandara, as the killer. Chidam instructs Chandara to lie to protect her brother-in-law. Now, we start to see the divison in the male and female hierarchy. Before this revelation, despite their love for each other, Chandara and Chidam had trouble in the relationship. Chandara suspected her husband of infidelity, and began flirting at the watering hole. Chidam then threatened her stating, â€Å"I’ll break every bone in your body† (p. 896) and locked her in the house. She escaped to a relative’s house, but was persuaded to return only after Chidam â€Å"had to surrender to her. † (p. 896). When we examine this relationship, it great to point out that Tagore states, â€Å"It was as hard to restrain his wife as to hold a handful of mercury. † (p. 896) Chandara has achieved a sort of power by submission; we tend to question where the balance of power lies in this relationship. The chain of events after the murder further explores the complexity in the relationship of Chidam and Chandara. When discussing the murder they agree that Chidam will save Chandara from execution, if she agrees to his lie. Chidam expects Chandara to relate that her sister-in-law attacked her and that Radha was killed in self-defense. After being taken into custody by the police, Chandara defies her husband by telling the police that the attack was unprovoked and puts her own life at risk. She was so angry with him that she refuses to see him before her execution stating, â€Å"To hell with him. †(p. 899). She accepts the punishment for a crime she did not commit in order to punish Chidam. She will not give him the satisfaction of saving her. Chidam gets her to take the blame for the crime but loses in the end by not getting his wife back. The story is unique by telling a story about the complex nature of human behavior and the unjust social set up of how women had no social status and importance in a family. Evidence of how the oppression of women is shown when Chidam states, â€Å"a wife can be replaced but a brother cannot be replaced,† (p. 894) clearly points out women are not valued. Tagore touches on women being oppressed and how social injustice was a common thing issue for women in rural Bangladesh during that time.