Monday, January 27, 2020

Microprocessor Based Instrumentation System

Microprocessor Based Instrumentation System I. Introduction There are various applications of microprocessor which makes our life easy and simple. Various instruments which we are using in our day to day life includes the role of microprocessors, which is fairly called as Microprocessor Based Instrumentation. On the basis of its processing and intelligence microprocessor are base for the operation of various instruments. Here is the description of some devices or instruments which uses microprocessors. Even the most common purpose equipments which are in our use such as toothbrush, thermometer etc. Placing an embedded microprocessor system into a product makes the product smart. It can then be programmed to do things that are too difficult or expensive using conventional technologies such as logic, or time switches, and so on. Link such a smart product to the Internet and it can do even more. For example, products can be programmed to do self-diagnostic checks and to report back to the manufacturer. Not only does this provide the potential to collect data that can be used to improve products, it can also allow for the manufacturer to inform the user of potential problems, so that action can be taken. This opens up possibilities for improved customer service as well as new services. Basically, embedded microprocessors enable firms to compete on product and service innovation, by adding product and service features that customers value. II. ATMOSPHERIC ION COUNTER An atmospheric ion counter was modified and fabricated to measure the atmospheric ions. The bias voltage of ion counter was adjusted using microprocessor and stepper motor. With the adjustment of bias voltage and flow rate of air the instrument, the instrument is capable of measuring ions of all the three categories i.e. small ions, intermediate ions and large ions. III. Energy Efficient Sterilization for Surgical Instrument A microprocessor based radio frequency operated induction heated sterilization plant is proposed in this article. In this plant heat is directly generated in surgical stainless steel Instruments by means of eddy current flow. With the adjustment of pulse width modulation (PWM) controlled technique, the controlled heat is generated as per the medical norms. By controlling pulse width it can reach at level of temperature upto 240 degree centigrade. This is sufficient to sterilize the hospital equipment. The depth of heat penetration by induction heating process will depend upon the frequency generation. The relation is inversely proportional with the frequency. For sterilization process, surface area of the instrument must be heated through water boiling in existing process. A new generation induction heated sterilization plant is proposed for the dry surface heating in place of conventional a few parallel stainless steel plates may be added with the surgical instruments under water to achieve the same objective. In this proposed scheme, there is no heat conduction loss in between source of heat and object (operational instruments). It offers an unique prize as there is no shock hazard during handling of boiled stainless steel surgical instruments. Microprocessor control is introduced for selecting slow or quick heat rate. Microprocessor assembly level language gives flexibility to design the heat rate change with respect of time without rearranging the hardware circuitry. Also it control the temperature through a transducer with the help of closed loop control. IV. Portable 4-Channel Gamma Ray Spectrometer It is compact, rugged, lightweight spectrometer and comprises of a 8085 microprocessor, standard peripherals and a scintillation detector of size 1.75† x 2†. It is used for insitu measurement of gross counts, and radioelement concentrations of uranium (U), thorium (Th), and potassium (K) with LCD alpha numeric display. The device is indigenously designed and fabricated. V. Borehole Logging System Microprocessor-based gamma-ray spectral logging with scintillation detector to trace the analog profiles of total, K, U and Th channels with corresponding depth. This system is being tested in the field in different areas for its performance. VI. Microprocessor Based Bulk Ore Analyser It contains 6 scintillation detectors to compute the grade of the ore in % eU3O8 carried in 25-ton dumper from mine. It was designed and fabricated for UCIL. VII. Wind Speed Instrumentation System This system is a basic system to measure the wind parameters like wind speed for wind speed, a visual indication of wind speed is obtained by dc generator to dc voltmeter with appropriate calibrated scale. The scale needs to be arranged such that the pointer indicates a speed of 1milepersecond when the generator stalled and voltage is zero. Then any speeds above 1 mile / second will be correctly displayed if the scale is calibrated according to given graph of frequency verses output voltages. Our circuit design works with a accuracy of 1 mile / second and best suited for examining heights between 30 and 100 m Both wind parameters are measured using microprocessor based instrumentation system. By pressing a respective key respective parameters can be measured for which interrupt service routine is used. VIII. Other Instruments Portable audio-visual scintillometer. Carborne gamma survey system (microprocessor-based) for total, K, U and Th. Light weight mine face scanner with beta-sensitive Geiger Muller (GM) tubes. FUTURE ADVANCEMENT No doubt, In this era everything is modernized, everything is operated under the computer i.e. microprocessors. From toothbrush to missiles everything is operated with microprocessor control. It is supposed that in near future the cars will be fully automated and can be operated under microcontroller applications. Cars will be parked itself, will be driven automatically, itself control its speed according to traffic and many more. Microprocessor are increasingly playing a major role in modern society. The invisible ones, used for controlling and monitoring machine tools, cars, aircraft, consumer electronics and other equipment are the most numerous. They are gradually changing the relationship we have with these devices. It is interesting to show that this is a market-pull rather than a technology-push phenomenon. The design of new chips thus represents a continuous challenge for the engineers and technologists striving to give the market the products it requires, and which are generally planned a long time before they actually appear. Monolithic microprocessor are overtaking all kinds of computers. Minicomputer lines were absorbed during the 80s, main-frame lines during the 90s and probably super-computers by the beginning of the next century. During this extraordinary evolution, these devices have used all the technical innovations which had been conceived for the previous generations of computers. The futur e of these devices is very challenging. To keep the evolutionary rate of computing power and binary code compatibility, completely new execution techniques will need to be invented, eventually leading to the break-down of the physical quantum barrier around 2010. Reference: http74.125.153.132searchq=cache%3Au4bwY1eptUsJ%3Awww.che.iitm.ac.in%2F~arbala%2Fissues%2Fissue23-1%2FSadhu.pdf+instruments+using+microprocessorhl=engl=in http://nopr.niscair.res.in/bitstream/123456789/3782/1/IJRSP%2035(1)%2042-46 http://74.125.153.132/search?q=cache%3Ap-hlNH0zDmwJ%3Adli.iiit.ac.in%2Fijcai%2FIJCAI-81-VOL-2%2FPDF%2F053.pdf+instruments+using+microprocessorhl=engl=in

Sunday, January 19, 2020

Ethics and Legal Issues

Kent has to deal with some ethical and possibly legal issues in the marketing of his game â€Å"Lucky†. Ethically he has to figure out if it is acceptable to market a game that focuses on nudity, violence, and gambling. As far as legal issues, is it legal to market these things in foreign countries and even online. If they can market this game in other countries they will have to change portions of the game for each of the countries that Brad has looked into targeting. Kent has basically two options. Discontinue the development of the game due to moral and ethical issues. Or he could go along with what Brad has suggested and market foreign countries. The question here seems to be is it worth the trouble it could bring to market nudity, violence, and gambling? Or should they just go in a different direction that would be less of a moral and ethical issue. Sex, violence, and gambling are basically everywhere these days. There are ads on television all the time that use sex to sell anything from beer to cars. Movies these days play off all three of these. Video games for kids these days promote violence all the time. Just look at Las Vegas, they openly market sex on the street as you walk down the road. And clearly it is know for gambling. Casinos are starting to pop up everywhere these days, not to mention that almost every state has a lottery. It is all accepted, but some people find it unacceptable, especially if they have young children. Marketing sex, violence, and gambling in other countries is acceptable if it is a part of their culture. But then again it comes down to a moral issue for the people or company that is involved.

Saturday, January 11, 2020

Investments Essay

1)   In 1994 the Bulgarian government issued bonds on which the coupon payments were tied to the GDP of the country.   I’m simplifying here, but basically a low level of GDP (a country-level measure of economic growth and activity) would reduce the interest payments on the bonds, and a high level of GDP would increase the interest payments.  ·Ã‚  Ã‚   Suppose a US investor buys these bonds, what risks is the investor exposed to? (list everything which could negatively affect the investment!) One of the risks associated with this bond is Interest rate  risk. The prices of bonds are inversely related to rates of interest. A higher GDP of Bulgaria would mean that the price of the bond will decrease, however a lower GDP would mean that the price of the bond will decrease. The interest  rate  on a bond is  set  at the time it is issued, which is in 1994. The coupon in 1994 reflected the interest rate at the time of issuance, however the increase in interest, in GDP, will make people unwilling to purchase bonds. In other words, the US investor will have a difficulty reselling the bond to secondary markets should the GDP of Bulgaria increase. Should he decide to keep the bonds, then his interest income is very much dependent on the GDP of the nation. There are is no fixed amount that he can count on. Another risk associated with bond is credit risk. Just as individuals default on mortgage payments, bond issuers can possibly default as well. Usually, bonds issued by the government are immune from this risk, but nothing is risk free in issues such as credit. Call risk is another risk the investor is exposed to. The government of Bulgaria can easily call back the bonds before maturity so they can issue it at a lower interest rate forcing the investor to reinvest the principal at a lower interest rate. Inflation risk is perhaps the worst of the investor must endure. The GDP of Bulgaria will suffer immensely if significant inflation is suffered by the country. Anything that affects the GDP of the nation will affect the interest rates of the bonds issued.  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Are their any ways to manage/offset some of these risks? Credit risk, generally associated with any kind of credit is practically managed in investing in these bonds. Governments, generally pay out their bonds, and on time too because it will not look good for the government to default from its loans to its people or its investors. The other kinds of risks are hard to manage given that they are dictated by a nation’s GDP. The investor from the US cannot likely influence how Bulgaria’s GDP shall fluctuate. 2)   In the 1970’s Yale University implemented a system for students in which the students would receive loans to pay their tuition.   Repayment of the loans involved the following arrangement: -after graduation all students enrolled in the program would pay 0.4% of their annual income per $1,000 borrowed until the entire cohort, or class, had paid off their debt, or until 35 years had passed, whichever came sooner.   (See â€Å"The New Financial Order† by Robert Shiller, 2004, Princeton University Press, page 143)  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   What risks are the students exposed to? The students, are exposed to the risk of paying more than they owe given that the program ensured that they can finish their studies but they essentially had to pay for royalties for 35 years. Imagine a student in 1974 who borrowed $30,000 to finance his Yale education. Assuming he has graduated in 1978, and started to earn $100,000 annual. For this first year alone, he will have to pay Yale .8% of his annual income which is $800. This payment will not stop until each person in his class, who obtained a loan from the University, has paid off his debt. The percentage of payment is fixed but the salary of this Yale grad keeps increasing yearly. Suppose this student managed to pay off his loan in 20 years, yet there are 5 people from his class who have not yet paid theirs, possibly because these 5 people have no income, then for fifteen more years the person is indebted to Yale for .8% of his annual income that is probably in the million dollar bracket by now.  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   What risks are the lenders of money exposed to? Yale, on the other hand is exposed to the risk of students paying off their loans quickly. Given that Yale produces quality graduates (i.e. President Bill Clinton), the students can easily pay back their indebtedness given their instant financial status after graduation. The time value of money is the greatest exposure of Yale. A $30,000 loan the University has given in 1974 has bigger value as compared to the $30,000 the students gave back in installment payments. The entire class might a find a way to fully pay their debts and Yale may not recover any interests for the loan extended.  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Are their any ways to manage/offset some of these risks? If one student, or a group of students has/have the means, then he or they can just buy off the remaining loan of their classmates, to ensure that everyone is debt free from Yale and the annual payments of every shall stop. The group may in turn collect from those who cannot pay Yale yet and draw up new terms and conditions for the loan. 3) In 1997 so-called Bowie bonds were issued.   These were 10 year bonds paying a 7.9% annual interest coupon, where the money for meeting the payments on the bonds was to come from the future income of musician David Bowie (see http://en.wikipedia.org/wiki/David_bowie if you’ve never heard of him!). What is the purpose of issuing bonds of this nature (i.e. what’s in it for the issuer)?  David Bowie pretty much protected himself to the decline of his popularity. His bonds were issued in exchange for ten years worth of royalties. Bonds were issued in this instance as a security. David Bowie has benefited from this deal, he may or may not have known it at that time but the bonds secured him from music piracy which has plagued the industry at the end of the 90’s. What risks are investors in the bonds exposed to?  After a while, bond investors were exposed to David Bowie’s decline in popularity. Also, they have been exposed to the ultimate enemy of the music industry: piracy. David Bowie issued the bonds on time before website like Kazaa have grown over the internet. Are their any ways to manage/offset some of these risks?  The investors have exposed themselves to the ultimate risk. They have relied too much on the popularity of David Bowie at the time when David Bowie himself protected himself from his decline. Consumer tastes are highly unpredictable and I do not see a way on how the bond investors could have controlled the popularity of music piracy throughout the end of the 90’s and early 2000 when they were supposed to get the royalties. 4)   In â€Å"The New Financial Order† by Robert Shiller, the author proposes â€Å"livelihood† insurance in the form of derivative contracts on the performance of particular professions.   In brief, the way it would work is: -we construct an index which broadly captures the current levels of compensation in a particular profession based on market data.   If demand (and salary) for people in a certain profession increases then so would the index, and if demand decreases then so would the index.   In other words, the index attempts to capture how good the current career prospects are in that field. Why might people be interested in contracts valued in this way?   Think of both speculation and hedging when considering this question.  People might be interested in these kinds of contract because of speculation and hedging. These people are presently employed of course. However, should the demand for their current profession grew, and various companies here and there are offering the same job at a higher compensation, then the person will not be happy at his current job. This kind of insurance will at least get him compensated for that opportunity lost while he stays with his present employer. He speculated that he would gain in the future given that he foresees better-paying opportunities for his career, but it requires a move to another nation or state, so he entered into a contract that would allow him be compensated as he wanted but remain secure in his current position. How is this proposal different to an individual simply taking out an insurance policy against failing to succeed in his/her chosen profession? (for example, an aspiring musician taking out an insurance contract which pays out if the person never actually ever gets offered a recording contract)  This specific example has failure in mind. In the first example, the individual did not have to fail anything. He remains secure in his current position.

Friday, January 3, 2020

Legalization of Marijuana - 1543 Words

Legalization of Marijuana How many people annually do you think die from smoking marijuana? Many people do not believe that the number is zero. Lots of people think that marijuana is harmful and think that it causes people to commit crimes and make bad decisions. The legalization of marijuana would help the government make money by taxing this drug, help sick people with medical use, and lower crime rates. Harry Anslinger, who is the Commissioner of Narcotics in the Bureau of Narcotics, saw that the traffic of marijuana is increasing to such an extent that it would be the greatest national concern. They started the Marijuana Tax Act of 1937 that was signed in by President Roosevelt. â€Å"Ten years ago we only heard about marijuana†¦show more content†¦Anslinger’s statement about how marijuana makes people commit crimes is somewhat false in the statement of Mayor La Guardia when he was talking about problems with crime in the Canal Zone. In the report they also comme nted on how lazy a person gets from using this drug. Mayor La Guardian’s statement from above tells us that people can’t be that lazy if they are still performing well in war. It was clear to many people that this drug was on the verge to become legal again. After this news came from the La Guardia Committee, Anslinger didn’t like it and banned any further research on the drug. Anslinger and the Bureau of Narcotics should have done more human research on the affects of marijuana before they banned the drug. Medicinal use of Marijuana is still banned unless you are prescribed by the government or live around the west coast. The government issues very potent marijuana to their patients to use for pain problems. This marijuana can only be received by patients who are legal to smoke in the United States. People on the west coast grow this on farms and harvest it and sell it to the medicinal clubs out in California. 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