What money can t buy essay
Essay Topics On Sartre'S No Exit
Monday, August 24, 2020
J.M Coetzee Foe Paper Free Essays
At that point includes, ââ¬Å"But maybe it is the doing ot Providence that Friday tinds himselt on an island under a tolerant ace, instead of in Brazil, under the planterââ¬â¢s lash, or in Africa, where the woods abound with cannibalsâ⬠(24). Here, Cruso protects Friday and features the unjustifiable methods of the subjugation that expelled Friday from his country. Cruso even considers himself a ââ¬Å"lenientâ⬠ace, showing that he cares for Friday. We will compose a custom paper test on J.M Coetzee Foe Paper or on the other hand any comparative theme just for you Request Now This love verifies the possibility that Cruso and Friday have a dad child relationship, yet there is additionally solid proof to demonstrate that Cruso considers Friday to be a lave. Coetzee depicts this relationship in a multifaceted manner, that prompts the theory of two ends; one end being that Friday resembles a captive to Cruso, another end is that Friday resembles a child to Crusoe. Coetzee makes Friday as a key story device, which Coetzee uses to pound home a more extensive theme: an association between Fridays relationship with Cruso and politically-sanctioned racial segregation. Be that as it may, little is thought about this focal character with the exception of his slave personality and discourse lack. The peruser is informed that when Friday was a kid, he was taken by the lavers, and that they remove his tongue to ââ¬Å"prevent him from regularly recounting to his story: what his identity was, the place his home lay, how it came about that he was takenâ⬠(23). Subsequently the mutilation of Fridayââ¬â¢s tongue guarantees that his story stays covered inside himself. The connection among Cruso and Friday appears to unequivocally look like the connection between the oppressors and the mistreated in South Africa during politically-sanctioned racial segregation. Friday, quieted by an obscure substance, speaks to the individuals that have no chance to stand up, however hold the narratives that tell the story of politically-sanctioned racial segregation from an ifferent perspective. In any case, these individuals can't talk. They, similar to Friday, are quieted. They are the ones that should be heard. Struck by the direness of Fridayââ¬â¢s quietness, Susan concedes, ââ¬Å"To recount to my story and be quiet on Fridayââ¬â¢s tongue is no better than offering a book available to be purchased with pages in it discreetly left emptyâ⬠(67). Susan accepts that her story is pointless without contribution from Friday. This straightforwardly corresponds to the tale of South Africa, and it being futile without the moving accounts of the abused individuals. Friday gives some indication of defiance when Cruso turns out to be sick with the fever. Here, Friday puts forth no attempt to help Susan deal with Cruso. Fridays thought processes are muddled here, yet it could in all likelihood be his regret at long last popping up, figuring out how to fght the mistreatment that has anchored him an amazing entirety. By the by, following Cruso recuperates, Friday is reestablished to being a hireling carelessly serving an ace. In South Africa, the persecuted individuals were hesitant to stand firm against the legislature, Just like how Friday is conditional to stand firm gainst Cruso. Friday holds up until Cruso is week with this season's flu virus, and afterward makes a wily, apparently unplanned endeavor at vengeance. Coetzee sees this failure to carry on and stand up as a significant burden to both Friday and the persecuted individuals of South Africa. Fridays congruity and quiet runs couple with the mistreated society of South Africa at the time that Coetzee composed Foe. Cruso speaks to the oppressor, just showing Friday what he has to know, never more. The absence of divulgence and opportunity that Friday encounters all through the novel is normal for politically-sanctioned racial segregation. Coetzee utilizes this relationship as a vessel to convey the inconspicuous yet amazing correlation of bondage to South Africa. Step by step instructions to refer to J.M Coetzee Foe Paper, Papers
Saturday, August 22, 2020
4 Tips to Sneak Soft Skills in Your Resume
4 Tips to Sneak Soft Skills in Your Resume What should your resume resembles? There are a lot of standard resume tips and resume best practicesâ out there, yet just a couple gives noteworthy tips.à Here are some sharp tips you can consolidate delicate abilities into your resume. Itââ¬â¢s regularly simpler to simply list your last five situations than to consider imaginative approaches to sell your character, yet think about these means to incorporate delicate aptitudes into your resume! 1. Utilize Soft Skills Mentioned in the Job PostingWhen in question, consistently reap from the advertisement that revealed to you the activity was accessible! Chances are theyââ¬â¢ll notice ââ¬Å"detailsWhenever youââ¬â¢re stuck, think about the STAR technique ââ¬Å"Situation, Task, Action, Resultâ⬠-to back up what you did, how you did it, and why it matters.Situation:à ââ¬Å"As the clinical clinicââ¬â¢s head receptionistâ⬠¦Ã¢â¬ Tasks:à ââ¬Å"â⬠¦responsibilities included looking after calendars, controlling administrative work, documenting arrangement recordsâ⬠¦Ã¢â¬ Action:à ââ¬Å"â⬠¦.and building up an organized way to deal with the coordination of care between offices.â⬠Result:à ââ¬Å"This planning framework has now been received by every one of the five centers in the structure and encourages more clear correspondence and speedier clinical consideration over the clinic.â⬠4. Feature Your Leadership QualitiesEmphasize the jobs where youââ¬â¢ve directed others, created leader conventions or strategies, or featured significant activities! Indeed, ensure you haveâ specific guides to help each occasion. In the event that you make it to the meeting, youââ¬â¢ll need to delineate your claimsâ with quantitative experience.
Thursday, July 16, 2020
Pain Contracts, Screening, and Prescription Databases
Pain Contracts, Screening, and Prescription Databases Addiction Drug Use Prescription Medications Print Pain Contracts, Screening, and Prescription Drug Databases By Trisha Torrey facebook twitter linkedin Trisha Torrey is a patient empowerment and advocacy consultant. She has written several books about patient advocacy and how to best navigate the healthcare system. Learn about our editorial policy Trisha Torrey Medically reviewed by Medically reviewed by Steven Gans, MD on January 24, 2020 Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Steven Gans, MD Updated on February 06, 2020 Hero Images / Getty Images More in Addiction Drug Use Prescription Medications Cocaine Heroin Marijuana Meth Ecstasy/MDMA Hallucinogens Opioids Alcohol Use Addictive Behaviors Nicotine Use Coping and Recovery If you believe you need pain relief in the form of a prescription pain drug like opioids or narcotics, you should be aware of the steps being taken by doctors, individual states, and provinces to determine which individuals do need pain drugs, how they manage the taking of those drugs, and whether or not theyre developing a substance use problem. Pain Contracts Some doctors now require people who are prescribed pain medications to sign pain contracts. The individual must read and agree to these contracts, or the doctor will not prescribe the pain-relieving drugs that the individual needs. The contract lays out the important points people must agree to, including statements like: I will not attempt to obtain drugs from any other source.I will not sell the drugs you prescribe for me.I will safeguard my prescription so it wont get stolen.I will agree to undergo screening tests to measure whether I am abusing pain drugs during the time I take them.I agree not to try to refill the prescription too early (which can mean that the individual is taking too much of the drug too fast). A final statement says that if they violate any of the points, the doctor will stop prescribing the meds for them, or will dismiss them from their practice. Its one reason people may be blackballed or blacklisted. You can find a sample pain contract online. The use of these pain contracts is a point of contention among doctors, as they feel that asking people to sign such a contract violates doctor-patient trust. Doctors who use them anyway may appear to feel a bit embarrassed about asking people to sign these agreements, but they do use them because they feel that people need to know the problems that may develop through the use of the drugs, and protect themselves from legal problems. Some doctors tell people that the government requires these contracts, but to date, no state, provincial or federal government is requiring pain contracts. Theyre local to a specific doctors office or hospital. Urine Tests One way doctors can tell if people have either taken too much of an opioid drug or have been compounding the drug with other substancesâ"including other drugs, marijuana, or alcoholâ"is to administer a urine test. If the urine test reflects only the drug that has been prescribed by the doctor, in an acceptable amount, then the individual has a better chance of continuing to work with the doctor, to receive the needed medication, to undergo another therapy to slowly stop taking the drug, or to relieve pain in another way. On the other hand, if other substances or too much of the prescribed medication is found in the urine, the doctor may dismiss the individual or simply refuse to write a new pain drug prescription. Not all urine tests are able to determine the exact amounts of opioids in your system. There are stories about people who have gone to the emergency room for problems that may or may not reflect the pain meds they take, who are then prescribed new pain relievers in the ER. They learn later that their regular doctor, who has been helping them with pain over time will, as described above, learn about the additional drugs from a urine test, then refuse to treat them further. Statewide Databases More than three dozen states and seven provinces in Canada have established databases to help track opioid and narcotic drug prescriptions. These databases track when doctors prescribe these drugs, when pharmacies dispense these medications, and when people have their prescriptions filled. When people see their doctor, and the possibility exists for writing them a pain-relieving drug prescription, the doctor will be able to access the database to be sure that people are not attempting to doctor shop in order to amass more prescription drugs than they are legally or medically entitled to or that may pose an overdose risk. Discussions are underway to make sharing this information possible across state lines so people cannot go doctor shopping in other states. While many people are upset that such a database violates their privacy, there are actually important reasons to support the use of this kind of tool. Doctors will be able to more confidently prescribe drugs for those who need them, at appropriate times, with less fear that they can get in legal trouble.When emergency room personnel can access such a database, people who go to the ER will be less likely to be prescribed drugs that can conflict with the pain drugs they already take. Or, those same people will be less likely to be dismissed by their regular doctors if theyve been to the ER for some other reason (see urine testing above).Many people continue to take pain-relieving drugs when they think they are dependent on them, even when they are not. People who are capable of being weaned off these drugs will be compelled to do so, even when they think its impossible. Doctors will have complete information about their patients pain drug history, including prescriptions written by other doctors, prior to their relationship with the individual. The US Dept of Justice/ Drug Enforcement Administration maintains a list of which states are using what kinds of tools to control narcotic and opioid drug abuse. As time goes on, the laws may be tightened even further, and it may become more difficult for people to obtain the drugs they want and need for controlling their pain.
Thursday, May 21, 2020
Marco Polo s Influence On The World Of The 18th Century
Marco Polo was born in the thirteenth century (1254 A.D.) in Venice, an Italian city-state, and he was very much a man of his time. He had the standard education for a young gentleman ââ¬â knowledge of classical authors and the basic beliefs of the church, a good grasp of French and Italian, and skills in accounting. This combination is fortunate for us, since his writings offer a window onto the world of the thirteenth century. His knowledge of culture and business made Marco Polo very observant of humans, animals, and plants, as well as anything that might touch upon commercial opportunities. He was observant about cultures that were very different from his own and able to describe them without much bias. European nations and city-statesâ⬠¦show more contentâ⬠¦The World Marco Polo Knew The Europe that Marco Polo knew was a collection of small nations and city-states constantly competing with one another. In the north the French empire was the strongest. To the east, northern German and Baltic city-states were united in a loose federation called the Hanseatic League. Scandinavian countries were relatively weak. In the south, southern German states were only loosely united and the Italian citystates were fiercely competitive, with Genoa and Venice especially bitter rivals. (After Marco Polo returned to Venice from China, he participated in a sea battle between Venice and Genoa. He was captured and imprisoned in Genoa, and it was during his imprisonment that he dictated his book.) Nearly all states were involved in wars with one anoother. Either the religious organization ââ¬â the Roman Catholic Church ââ¬â or the political entity ââ¬â the Holy Roman Empire ââ¬â could have been a unifying force, but they also were also locked in competition for power. In Asia Minor, the power of the Byzantine empire was in decline, and the power of the Turkish Ottoman Empire was increasing. In addition, Europe was still involved in its own Holy War against the infidels ââ¬â the Crusades. By contrast, the Mongol empire presented for a brief time in the thirteenth century a model of unity. A loose federation of separate nomadic tribes in most times, theShow MoreRelatedThe Shaping Of North America2646 Words à |à 11 Pagesa population of about 40,000 people. 4. The Eastern Indians grew corn, beans, and squash in a system. Three sister farming worked this way: corn grew in a stalk providing a base for the beans, then the beans grew up the stalk, and later the squash s leaves kept the sunlight off the ground and thatââ¬â¢s how they kept moisture in the soil. The Eastern Indians probably had the greatest diet of all North American Indians and is mostly represented by the Cherokee, Creek and Choctaw in the Southern United
Wednesday, May 6, 2020
Analyse The Teachings Of Islam - 2020 Words
Analyse the teachings of Islam as they apply to TWO specific areas of Bioethics. The Islamic view of life is based upon the notion that faith provides the sanctity of life. The Qurââ¬â¢an states; ââ¬Å"Whosoever has spared the life of a soul, it is as though he has spared the life of all people. Whosoever has killed a soul, it is as though he has murdered all of mankind.â⬠- Qur an 5:32 The religion of Islam is founded upon the core principle that the acceptance and realisation of Godââ¬â¢s divine determination is revealed through oneââ¬â¢s degree of submission. Muslims themselves will always try to find the best way to follow and respond to Godââ¬â¢s will, which more often than not takes them into the domain of ethical issues and decisions. Godââ¬â¢s word and teachings are found in the Islamic sacred text of the Qurââ¬â¢ran. Considering that the Quââ¬â¢ran is over thirteen hundred years, this creates an obstacle for Muslims to follow Godââ¬â¢s will, as many of the contemporary issues regarding bioethics were not addressed in the period of which the Qurââ¬â¢an was written The religion of Islam is an all encompassing religion with a comprehensive law that provides guidance in all key aspects of life. This law is known as Shariah Law. Shariah contains both legal rules and ethical principles. Shariah is summed up under four broad categories: Aqidah - Creed Ibadah - Religious Worship and Practices Akhlaq - Morality and Ethics Muamalah - Social Relations Human freedoms in the religion of Islam are not absolute andShow MoreRelatedThe Lives Of Muhammad By Kecia Ali875 Words à |à 4 Pagesanti-Muslims and Muslims alike. On the contrary, she analyses both factions of the narrations and tells the story of Muhammad in a new light. The focus of this paper, therefore, is to look at the analysis of the book by Kecia Ali. It will look at some of the arguments that she has that leads her to make that conclusion. It will also include evidence to support them and its contributions to similar books in the field. Analysis of the lives of Muhammad Islam refers to Prophet Muhammad as the founder ofRead MoreSignificance of Hajj to the Life Muslim Adherents825 Words à |à 4 PagesAnalyse the significance of Hajj to the life Muslim adherents (15 marks) à à The Hajj is one of the 5 pillars of Islam and ultimately reflects many core Muslim beliefs. Through spiritual rebirth, the wearing of the Ihram garments, the acknowledgement of Allah s omnipotency and the experience of following in Prophet Muhammad s footsteps, adherents through the Hajj are able to reflect the Islamic beliefs of Jihad, Umma, Zakat, and forgiveness in their own lives. By this Muslims are able to becomeRead More Hughes Women and Gender in Islam: Historical Roots of a Modern Debate1170 Words à |à 5 PagesHughes Women and Gender in Islam: Historical Roots of a Modern Debate In the Hughesââ¬â¢ text, Women in World History: Volume 1, the chapter on Middle Eastern women focuses on how Islam affected their lives. Almost immediately, the authors wisely observe that ââ¬Å"Muslim womenââ¬â¢s rights have varied significantly with time, by region, and by classâ⬠(152). They continue with the warning that ââ¬Å"there is far too much diversity to be adequately described in a few pages.â⬠However, I argue that thereRead MoreSpecific Aim 3 : Distribute And Collect The Questionnaire1232 Words à |à 5 Pagescollect the questionnaires that have been distributed to the MPharm students at the Ulster University. Specific Aim 4: Analyse the results of the questionnaire Background Data analysis is the procedure of summarising the data to create important approximations based on the study title, including the statistical tests that will be done to analyse the data. In addition, the analysis will differ depending on the type of questions included in the questionnaire, such as open-ended questionsRead MoreIslam Five Pillars1344 Words à |à 6 PagesExplain and analyse the significance of the Five Pillars of Islam on the individual and the community making reference to the principal beliefs where relevant. Central to the Muslim belief is the importance of devotion and total submission to Allah. This is put into practice through the Five Pillars of Islam ââ¬âthe five obligatory duties that must be performed by all practising Muslims. These are the acts of faith, prayer, charity, fasting and pilgrimage. Carrying out these duties creates structureRead MoreAisha Essay1413 Words à |à 6 PagesPART B Analyse the impact of Aisha bint Abu Bakr on the development and expression of Islam. Aisha bint Abu Bakr was a leader, a woman, a wife, a theologian, a scholar and a political activist. She was precocious, loyal, brave and remarkably intelligent. These aspects of her humble life have allowed her to make a powerful impact on the development and expression of Islam that ââ¬Å"no woman [has] reachedâ⬠[1]. Not only did she influence the position of women in Islamic society, Islamic ethics,Read MoreInner Peace- religion952 Words à |à 4 Pagesï » ¿Analyse how the individual is guided towards acheiving inner peace in TWO religious traditions. (18/20)Inner peace is defined as an internal quality of calmness and security which puts the mind at ease and fills the adherent with a sense of tranquility and assurance. For adherents to Christianity and Islam, inner peace is an inevitable and hugely rewarding consequence of genuine faith. It is developed rather than striven for, through a unique combination of personal, communal, scriptural and doctrinalRead MoreEvol ution of Abrahamic Religions 1022 Words à |à 5 Pagesreligions that span many people groups and ethnicities can trace the roots of their beliefs back to Abraham. Three main religions sprouted from Abrahamic traditions, this paper will discuss the origins and the evolution of these three and will also analyse the reasons these three religions split. The origins of all abrahamic religions trace their roots back to abraham. Abraham is believed to have lived around 2000 BCE as written in Genesis, the first book of the bible and the torah. Abraham is believedRead MoreCritique Of The s And Mahmood s Influential Ethnographies, A Great Deal Of Attention1431 Words à |à 6 Pageshas been afforded to Islamic Revivalism and in particular, there has been an intense focus on ethical self-cultivation and the achievement of piety. As a response to this, there have been calls for a shift in analytical attention towards ââ¬Ëeverydayââ¬â¢ Islam. These works have tried to show how ethics are an intrinsic part of everyday life and do not necessarily depend upon religious frameworks. However, this turn towards ââ¬Å"the everydayâ⬠has been subject to fierce criticism, notably from Fadil and FernandoRead MoreAnalysis and Discussion of Surah 801623 Words à |à 6 Pagesdiscussion about Islam with pagan the Quraish leaders, who controlle d the city. The leaders have been described as dismissive of the Prophetââ¬â¢s claims, which often resulted in disputes and violence against his followers and him. It is significant that this surah refers to the Prophet talking to Quraish leaders because they were not known to ever listen to the Prophet or to attempt to understand his revelations. During this period, the Prophet was actively trying to spread the word of Islam and gain followers
Design of Fuzzy Controller Free Essays
Design of fuzzy controller for two tank interacting system Mohamed sabith KT Second year M. tech Dept of Electrical Engineering NIT Calicut Calicut, India sabithkt@gmail. com Dr. We will write a custom essay sample on Design of Fuzzy Controller or any similar topic only for you Order Now Abraham T Mathew Professor, Dept of Electrical Engineering NIT Calicut Calicut, India atm@nitc. ac. in Abstractââ¬âThe control of liquid level in tanks and flow between tanks is a basic problem in the process Industries. Vital industries such as Petro-chemical industries, Paper making industries, Water treatment industries have the coupled tanks processes. The level of fluid in the tanks and interaction between tanks must be controlled. The aim of the project is to model the the coupled two tank liquid level system and to design a fuzzy controller. For coupled tank systems with non linear and complex characteristics classical PID is difficult to achieve the desired response. Fuzzy logic control is a classic method by which dynamic performance and strong robustness is guaranteed. The project compares the performance of the two tank system with classical PID and fuzzy logic control. Index Termsââ¬âPID, fuzzy logic, steady state Introduction through two separate pumps whose output is throttled using a control valve. Separate disturbance are made to both the tanks using hand valves. The two tanks are connected by means of hand valve, so the level of tank 1 will affect the tank 2 and vice versa. So this is a highly non linear system. Flow transmitters and pressure transmitters are there which give indication of flow and level respectively in a scale of 4-20 mA. The input from this sensors are taken to a computer which is process by a software in which controller is implemented which will give necessary control signal to throttle the control valve to get the necessary level. A Coupled tanks process is found in the many industries. Generally, The TITO processes have the problems to control their systems because of the existence of interactions between input and output variables. Many control methods such as 2DOF PID [1], Auto tuning PID [2], CDM [3] and Decoupling [4] have been applied to coupled tanks processes for solving their problems. This paper presents control of two tank interacting system with the help of classical PID and Fuzzy control. The paper is organized as follows. The next section gives details about Coupled-tank process. Section 3 explains about modeling of two tank interacting system. Section 4 explains PID based control. Section 5 explains an implementation of Fuzzy Controller for coupled tank process. Section 6 shows experiment process and results. Finally, conclusions are given in section 7. COUPLED TANK SYSTEM MODELLING OF A TWO TANK INTERACTING SYSTEM Consider the coupled tank, two-input two-output process . The target is to control level of two tanks by the inlet water flow from two pumps P1and P2. The process inputs are flow rate of two pumps u1(t)and u2(t) which is throttled using control valves. The nonlinear plant equations can be obtained by mass balance equation The overall material balance on the cylindrical tank is: Rate of mass accumulation in the system = rate of mass entering in the system- rate of mass leaving the system There for the dynamics of the tank system can be written as The coupled tank apparatus is shown in the Figure 1. 1. The apparatus is a model consisting of a pump, two cylindrical tanks made of plexiglas, two control valves, and two level transmitters . The two tanks are installed in a manner as shown in the fig 2. 1The water input to both the tank is provided 1 1 = ? 1 ? 1 ? 2 ? ? 1 + ? ( 2 ? ? 2 ? (2 ? ? 1( ) 2 2 = ? 2 ? 2 ? 2 ? ? 2 + ? ( 2 ? ? ( 1 ? 2 ? ? 2 Where A is the cross section area of tank 1 and tank 2, a is the cross section area of outlet hole of tank 1and tank 2 and cross section area of jointed pipe between tank 1 and tank 2 , ? 1 is the valve ratio at the outlet of tank 1, ? 2 is the valve ratio at the outlet of tank 2, ? x is the valve ratio between tank 1 and tank 2. k1,k2 are the gain of the pump. The above equations can be converted to transfer function form and a transfer matrix of the form is obtained. ?1( ) 11( ) 12( ) = ? 2( ) 21( ) 22( ) 1( ) 2( ) nteraction between processes, the control design needs the decoupling controllers to minimize the cross coupling effects Because of the interaction between processes, the control design needs the decoupling controllers to minimize the cross coupling effects The decoupling controllers consist of two decouplers d12 and d21 . The purpose of using decouple is to decouple the multivariable system. This can be done by choosing the following transfer function. D21=-G21/G2 2 D12=-G12/G11 SIMULINK SIMULATION OF COUPLED TANK SYSTEM WITH PID CONTROL AND DECOUPLERS The modeled coupled tank system was simulated using simulink . G11 represent the dynamics of the tank 1 ,similarly G22 represent the dynamics of tank2. G12 represent the effect of level of tank 2 on tank1,and G21 represent the effect of level of tank 1 on tank 2. Due to high interaction between the tanks ,its difficult to control with ordinary PID. So as to avoid the interaction Decouplers were introduced. The advantage with the decoupler is that separate PID controllers can be designed for individual loops. Two individual PID controllers were designed for the two loops and tuning of the controllers were also performed. Tank 1 is subjected to a setpoint input of 15cm at time of 30 seconds and it is having an setpoint of 5cm. Similarly Tank 2 is subjected to a setpoint input of 25cm at time of 50 seconds and it is having an initial setpoint of 10. The response of the simulated system is shown in fig below,both the level of tank 1 and tank 2 follows the setpoint with small peak overshoot. Where h1, h2 are the liquid level in two tanks and u1,u2 are the input into the two tank . Where transfer matrix Gij(s)has the value as following G11(s)= 1 + 2 + 2 1 + +2 1 2 1 1 1 2 + +( + + ) 1 2 1 2 1 2 G22(s)= 2 + 1 + 1 1 + 2 +2 1 2 1 1 1 2 + +( + + ) 1 2 1 2 1 2 2 1 1 + 2 +2 1 2 1 1 1 2 + +( + + ) 1 2 1 2 1 G12(S)= G21(S)= 1 1 1 + 2 +2 1 2 1 1 1 2 + +( + + ) 1 2 1 2 1 2 Design of Decouplers The theoretically modeled system was simulated using simulink as shown in fig. below . G11(s) represents the tank 1 and G22(s) represents the tank 2. The effect of tank 1 on tank 2 is given by G21(s) and the effect of tank 2 on tank 1 is given by G12(s). This coupled tank system is having high interaction and it also exhibits non linear characterstics. Because of the The input variable error(e) is shown below,for all these inputs five membership functions are used. The five membership functions are NB,N,Z,P,PB. Fuzzy controller The traditional control, which includes the classical feedback control , has encountered many difficulties in its applications. The design and analysis of traditional control systems are based on their precise mathematical models, which are usually very difficult to achieve owing to the complexity, nonlinearity, time varying and incomplete characteristics of the existing practical systems. One of the most effective ways to solve the problem is to use the technique of intelligent control system, or hybrid methodology of the traditional and ntelligent control techniques. The output variable is shown below As i have 2 inputs with 5 membership functions,I used 25 rules(IF THEN ). The surface of the rulebase is as shown below The above fig shows how a fuzzy controller is implemented . The Fuzzy controller takes two input and have one output, error and rate of change of error are given as input to the fuzzy controller . depending on the input the fuzzy controller produces required control action. For all input and output triangular membership functions are used. The input rate of change of error(de) is shown below The two tank system with fuzzy controller is subjected to an input,the first tank is set to a initial level of 5cm then it is subjected to a step change of 15 cm at 25 seconds,for the second tank it is set to a initial level of 10 cm and final level of 20 cm. With fuzzy controller the outputs obtained is as shown below [1] Suparoek Kangwanrat1, Vittaya Tipsuwannaporn ? Design of PI Controller Using MRAC Techniques for Coupled-Tanks Process? International Conference on Control, Automation and Systems 2010 Oct. 7-30, 2010 in KINTEX, Gyeonggido, Korea [2] V. R. Ravi , T. Thyagarajan ? Application of Adaptive Control Technique to Interacting Non Linear Systemsâ⬠IEEE Transactions On Systems, Man, And Cyberneticsââ¬âPart B: Cybernetics, 33( ), 2003, 514ââ¬â521 [3] [3] Dr. S. AbrahamLincon, P. Selvakumar ? Design of PI Controller using Characteristic Ratio As signment Method for Coupled Tank SISO Process? International Journal of Computer Applications (0975 ââ¬â 8887) Volume 25ââ¬â No. 9, July 2011 [4] Li LIANG ? The application of fuzzy PID controller in coupled-tank liquid-level control system? IEEE Transactions on Industrial Informatics, vol. 6, no. 1, pp. 25-35, 2010 [5] Jutarut Chaorai-ngern, Arjin Numsomran, Taweepol Suesut, Thanit Trisuwannawat and Vittaya Tipsuwanporn ?PID Controller Design using Characteristic Ratio Assignment Method for Coupled-Tank Process.? Proceedings of the 2005 International Conference on Computational Intelligence for Modelling, Control and Automation CONCLUSION The output obtained for fuzzy controller doesnot show peak overshoot as in th case of a PID controller ,the problem observed with fuzzy controller is that small oscillations will be prescent at steady state REFERENCES How to cite Design of Fuzzy Controller, Essay examples
Saturday, April 25, 2020
The Cyber War Essays - Cybercrime, Hacking, Hacker, Phreaking
The Cyber War The Internet is a wondrous place. Practically anything you could ever want is available on the Net. It's like a big city, it has distinguished areas, and the sex- ridden slums. It has the upstanding citizens, and it has the criminals. On the Net there really is more crime than in a large city, though, mainly because of the difficulties in tracking and prosecuting offenders. Even from its beginnings the Internet has been a battlefield between phreaks and administrators. The Internet has not always been a public forum. In fact the Internet has been around for years. It is just a new fad (The More I Learn A1). The Net originally began as DARPANET, a government?created network, which was designed for defense communications. The Net structure is such that it could survive a nuclear war (Internet History). The creation of the Net can not be blamed for the existance of hackers though. Hackers are older than the Net itself, but the Net is the largest ?hacker haven' today (Spencer, Hacking McDonalds 6). The growth of the Net since its creation has been nothing less than astounding. In 25-plus years since the its beginning, the Net now has over thirty?million users using four million sites worldwide. Estimates rate the growth of the Internet anywhere from ten to fifteen percent per month (Spencer, Hacking McDonalds 6). The Internet was first released to major universities in the U.S. Since then, the universities have offered connections to small businesses, service providers, and even to the individual user. Sometimes these connections cost a fortune, and sometimes they can be obtained for free (Internet History). Although some of the universities have dropped off the Net for various reasons, every major university in the United States, and now most others in the world, have a connection to the Internet (Quittner 61). The Internet began very high?class, due to the fact that only super intelligent college students and professors could access it. The discussion over the Net stayed intellectual, with very little disturbance (Internet History). However, relatively recent changes in the availability of the Internet has changed that atmosphere. Now, almost anyone can access the Internet. Internet access is offered by every major online service (Hinowitz A1). The fact that the major online services charge for their use keeps many people away from them. Those people then simply turn to public dial?ups, which are free connections offered by universities that are available to the general public (Spencer, Know Your Territory). Because accessing the Net is easier, and it naturally the amount of information on the Net is increasing at the same rate, if not faster. In what is often referred to by Net users as the Resource Explosion. The amount of information circulating the Internet has increased more proportionately with the number of users (Spencer, Hacking McDonalds6). Of all the other factors contributing to the large percent of online crimes, perhaps the most influential is the design structure of the Internet. Experts agree that the underlying structure with no central hub, where each computer is equally powerful, gives unchecked power to the undeserving (Spencer, Stranglehold 8). The design also makes controlling the frequency of break?ins almost impossible as well. Both politicians and ?experts' believe the Internet as a whole will be regulated in the next five years. Hackers disagree, using the arguments that the Internet was designed to be uncontrollable, that the basic structure doesn't support regulations (Spencer, Stranglehold 8). I must agree. In a network run by users, which is designed to be impenetrable to attack, not even the government has much muscle there. In fact the Internet is one of the few places the government has little power. Because the Net is international, any regulations forced upon by domestic computer users can be en trapped by routing through an over seas computer (Savage). The government doesn't have the power to completely shut down the Net. In order to do that every one of the millions of computers on the Net must be disconnected. Even if only two remain, the Internet will continue to exist (Spencer, Hacking McDonalds 6). The ease of adding something to the Internet is also a factor preventing the total regulation of the Net. A new site
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