My Antonia By Willa Cather Essays (524 words) - My Ntonia

My Antonia By Willa Cather "THERE was a curious social situation in black hawk. All the young men felt the attraction of the fine, well-set-up country girls who had come to town to earn a living, and, in nearly every case, to help their fathers struggle out of debt, or to make it possible for the younger children of the family to go to school." (Page 127) This was the way of life for most girls around the 1920s. The book My Antonia by Willa Cather, Refreshingly creates female roles and strong personalities. Frances Harling, Molly Gardner, And Lena Lingard are excellent examples of such women. Frances Harling is one of the vast examples of what a strong woman can be. She is very responsible. She takes care of her father's business when he goes out of town, and on Sundays she would go to the office just to read the mail. Frances is very talented. She could play the piano with out a light and talk to her mother at the same time. Frances also was one of the most dependable people in town. If any one had a wedding she would bring a present. If there was a funeral she would be there to help console them. You could always count on her to be there. Molly Gardner had a strong personality. Molly would show her personality by the way she presented herself. Jim the narrator said "Mrs. Gardener was admittedly the best-dressed woman in Black Hawk, drove the best horse, and had a smart trap and a little white-and-gold sleigh."(Page 117) Molly liked to have the best meterial goods in the town, and she liked to show them off. Mollys personality was the reason that her husband's and her business did so well. Jim also said "...he knew that without her he would hardly be more that a clerk in some other man's hotel."(Page 122) Molly would also go on all the business trips because she was the smarter one between her and her husband. Lena Lingard was not one of the most respected people in town, but she wanted to improve herself. She wanted to get away from the farm she thought the work on the farm was endless. Lena had left the farm at a young age to become a seamstress and study under Mrs. Tomas, a well known dress-maker in town. Her mother supported her decision and Lena was planning on making some money and helping her mother, back on the farm. One of Lena's weak points and the reason the town talked about her was that she was a flirt. "I didn' know if your mother would like her coming here,"said Antonia, looking troubled. "She was kind of talked about, out there." Lena would be chased by guys and their girlfriends because she would flirt so much and that would upset the girlfriends. My Antonia shows the strong personalities and positive life roles of women in the 1920s. Frances Harling, Molly Garner, and Lena Lingard all show this in the way they presented themselves in Black Hawk. Frances shows responsibility skills, Molly shows leadership skills, and Lena shows the will to improve herself. If ever woman or man had these skills they would have no trouble getting through life.

Europeans and Native Americans essays

Europeans and Native Americans essays American Indians were the first inhabitants of this land we call home. They were here way before the United States was created. The Native Americans did not even know the term America until the "white man" came. The "white man" influenced the natives; however, the Native Americans also did the same. There were more than two thousand tribes in the Americas when Columbus first came to the West Indies in 1492. In the next five hundred years, due to European settlement, many of the tribes were destroyed or threatened by disease, war, and government policies. Native Americans experienced outcomes with their encounters in which they resisted and had much difference between the Europeans. Even though they suffered great loss in land and culture, their pride and traditions live on. The English were one of the encounters the Native Americans had to face. The English tried to overrule Chesapeake, but the Indians learned quickly to use guns and other weapons, so the Indians were able to outnumber the English. The English did not have any women at one point and were starving to death, so they demanded the Indians to nourish them. Indian made war and killed male warriors of opponent tribes but adopted the women and children. When Powhatan people neglected or defended their property, the English murdered women and Indian children. During most of the seventeenth century determined colonies fought to control the land and labor needed to secure profits from tobacco, sugar, and rice. After a long struggle with violence and high mortality, the colonies along the southern Atlantic began to prosper. Stability was brought on a high price in which the English introduced slavery. The Navigation Acts designed to regulate colonial trade in ways that only benefited England was destroying the Chesapeake society. South Carolina suffered from social instability in the result of ethnic and religious diversity. Worsening Indian relations and resulted in...

Case Study of Uber

CASE STUDY ON DEMAND ANALYSIS OF UBER CABS How Uber works ? The process is simple from the consumer’s point of view: You request a car by texting your address or by using Uber’s iPhone or Android app. Because Uber sends the nearest driver to your location to pick you up, your ride arrives within 5 to 10 minutes. Then you just hop into your car and get out at your destination, with no need of fumbling with money because Uber automatically charges your credit card. (You punch in your credit card information into the app before requesting a car. The Algo: †¢ From the computer scientist’s point of view, the process is a noble attempt at solving the complicated traveling-salesman problem, in which you’re trying to determine the shortest path visiting each location only once. â€Å"Each car has its own traveling-salesman problem,† Kalanick told Wired. †¢ Uber has created algorithms that try to connect car-hailers with the nearest car. And it tweaks this algorithm every day, when they analyze car demand and routes. Ensuring that everything works smoothly are a bunch of operation managers looking at a â€Å"God View† (pictured above) that shows where each Uber car is. Demand: The way the company ensures there are enough cabs for demand is also complicated: They analyze weather forecasts, knowing that there will be more demand for rides when it rains, and also take sporting and other events into consideration, and increase fares depending on how high that demand is. So more cabs will be on the road when demand is high because the drivers will be getting paid more. And from the other perspective, only people who are willing to pay the higher price will be riding, which also moderates demand. ) Microsoft on Demand Analysis: http://blogs. discovermagazine. com/discoblog/2010/11/05/the-secret-knowledge-of-taxi-drivers-could-be-added-to-online-maps/ MERU CABS:: Driver Audit of Meru Cabs: This academy is for the chauffeurs. The professionals at the academy focus on personal key attribute of them . The academy runs a few comprehensive programs on personal grooming and hygiene and social hehaviour. To start with, the subscriber is given a one-week extensive training program on customer handling, safe driving skills, company processes, city road knowledge and operation of the vehicle hardware including the electronic meter and the devices in the vehicle. A refresher course is also conducted every quarter to ensure that the subscribers remain courteous to passengers and provide the best quality of service possible. How big is the fleet at present? What are the expansions plans, given the increasing demand? Currently we have 5000 cabs across four cities. ,800 in Mumbai, 800 in Hyderabad, 1,200 in Delhi, and 1,200 drivers in Bangalore. We plan on adding an additional 500 drivers in each city by March 2011. Meru cabs ply in Mumbai, Delhi, Bangalore and Hyderabad. We are evaluating the cities of Chennai, Pune and Kolkata. What are the various technology best practices adopted by the company? We have installed various automated systems like a digital tamper proof meter on board, high- end GPS and GPRS to ensure real-time cab location and dispatch, a mobile data terminal (MDT). Currently, consumers also have the option to pay for their fare by a credit/debit card. Further, an automated speed control alarm in the cab warns the chauffeur if he crosses the speed limit. We get around 2. 5-3 lakh calls per week across the four cities that we operate in. The call center uses advanced interactive voice response (IVR) system. Also to increase productivity and improve service levels we have implemented ERP System from Oracle, Siebel. Our data center hosts a set of communication servers, application servers, and database servers which are connected with each taxi through GPRS. We are the only Indian company which has built such a world-class IT infrastructure. Does Meru have a segmented category of corporate and individual customers? What would be the figures like? Meru has incorporated additional facilities like a card payment option that has been launched in Bangalore, Delhi and Hyderabad, and will soon be launched in Mumbai. More than 1 million passengers travel per month across four cities. Meru Cabs are used for business travel, entertainment occasions, airport and railway drops. Today there is an increasing usage for shopping trips and sometimes even school trips due to parking issues.

Backchannel Responses in Japanese-English Encounters Essay - 1

Backchannel Responses in Japanese-English Encounters - Essay Example Given that the speaker and the listener belong to different backgrounds, the paper explores the evolving differences that present themselves, in responses across different language, gender, and cultural contexts. Â  Since communication takes root in feelings and ideas and manifests itself in behavior, the paper reviews existing research literature and examines if backchannel responses, in the intercultural context of English and Japanese encounters, have played any role explicitly or implicitly in improving communication between the two groups. Analyzing cross-cultural interactions, its value addition to intercultural communication is also studied. Â  The paper then critically scrutinizes convergence and divergence codes among the two groups and tests it in the background of the communication accommodation theory. Investigating into the speaking skills of the listener, the paper construes, that the non-native listener in a conversation with a native speaker, needs to use verbal and non-verbal backchannel responses, informatively and contextually to avoid misunderstanding brought-about by local and foreign interculturality. Â  Charles C. Fries, a renowned American lexicographer, and grammarian was one of the first known researchers to reveal backchannel responses in a published work. Later on, the study of backchannel responses was taken up by researchers from a variety of disciplines - communication studies, sociology, linguistics, and psychology. Â  Since each discipline approached the subject differently, they provided diverse terminologies for the concept of backchannel responses.

An organisation requires strong leadership rather than sound Essay

An organisation requires strong leadership rather than sound management if it is to become a learning organisation. Critic - Essay Example Strong leadership influences positive behaviour and strong belief among people in an organisation thus improving the overall performance of the organisation. Learning organisations are companies or organisations that develop programs to facilitate the learning of its people with the objective of continuously transforming itself to enable the company remain competitive in the harsh current business environment. Building an organisation into learning organisations begins with changing people’s rational of thinking and how they act to different business situations. Strong leadership is essential in shaping the working mentality of people in organisation, an element which is essential in shaping an institution to become a learning organisation. Sound management influences how different employees at different levels of management in the organisation relate with each other towards achieving the objectives of growing into a learning organisation (Gosling and Dennison, 2003). The succ ess of institution is however hinged on a number of factors that are under the control of the management and the people in the organization as whole. Sound management refers to the practical plan and control mechanisms put in place by an organisation to enable it implement its policies and organisational programs. Organizations struggle to adopt sound management practices hoping that such practices will improve their chances of growing into greater institutions that can be emulated by other organisations. Success in an organization however requires strong leadership capabilities as opposed to the adoption of sound management practices without improving the leadership abilities of the organization (Gosling and Dennison, 2003). The presence of good leadership in an organization can be felt throughout the entire organization through the sound policies that the organization implements and its ability to handle different challenging situations surrounding the business. Good leadership de velops a great corporate and organizational culture that guide the progress made by the organization and its success in the future decisions. The traits and features of a successful leader are quite evident in the way they handle different situations in an organization that affects the development of an organization. This paper will evaluate the traits of a great leader in organizations and how these traits shape the image of the business and its success. In providing the basis for the conclusion that strong leadership is important for an organisation that intends to grow into a learning organisation, this paper will analyse the various strong leadership theories and how they influences the development of an organisation. To demonstrate the choice of strong leadership as the best way of ensuring the growth of a company into a learning organisation, this paper will discuss three dimensions of strong leadership. In these dimensions, the different theories of leaderships will be discus sed to demonstrate my choice of strong leadership. The attributes of strong leadership is the second dimension that the paper will discuss with bias towards how these attributes can enable an organisation to grow into a learning organisation. In the final dimension, the weaknesses of sound management will be evaluated as compared to the strengths of strong leaders

Overpopulation :: Human Population

During the first 2 million or so years of its history the human population was a minor element in the world ecosystem, with at most 10 million members. In the New Stone Age, less than 10,000 years ago, the number of humans began to increase more rapidly. The rough equilibrium maintained before Neolithic times gave way when the human population developed agriculture and animal husbandry and no longer had to spread out in search of game. With the abandonment of a hunting-gathering way of life and the rise of permanent settlements and eventually cities, the human population underwent dramatic growth. By the beginning of the Christian era it had reached 250 million, and by 1650, half a billion. Growth of population during 20th century was very rapid. In 1994 the total world population was estimated at about 5. 6 billion people. It increased nearly by 4 billions of people during past 100 years. The most significant world trend is that death rates are currently falling in poor and rich countries alike, while birthrates remain high in most poor countries and low in most rich ones. Exceptions are the generally higher death rates of Africa and the high birthrates of the rich oil-producing countries. The most populous countries, in descending order, are China, India, the United States, Indonesia, Brazil, and Russia. The U.S. population totaled about 260. 8 million in 1994. In the 1990s about 4. 1 million children were born annually in the United States, and more than 2. 1 million persons died yearly. The greater number of births is due in part to a fertility rate that has increased by nearly 20 percent since the mid-1980s. International immigration, both legal and illegal, is another major element in U.S. population growth. Legal immigration has recently amounted to about 1 million per year; illegal immigration is thought to be several hundred thousand. In China, the world's most populous country, the 1994 population was estimated at nearly 1. 2 billion, more than double the 1953 census population of 584 million in mainland China. China's annual increase has been estimated at 1. 1 percent annually. India's population of more than 911. 6 million people (1994 est.) is increasing faster than that of China, and if present trends continue, it will soon catch up with or surpass China. Since the disintegration of the USSR, Indonesia and Brazil are now the fourth and fifth most populous countries, with 1994 estimated populations of 199.

Design of Fuzzy Controller

Design of fuzzy controller for two tank interacting system Mohamed sabith KT Second year M. tech Dept of Electrical Engineering NIT Calicut Calicut, India [email  protected] com Dr. Abraham T Mathew Professor, Dept of Electrical Engineering NIT Calicut Calicut, India [email  protected] ac. in Abstract—The 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 projec t compares the performance of the two tank system with classical PID and fuzzy logic control. Index Terms—PID, 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 var iables. 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 equation s 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/G22 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 tan k 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 preci se 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 tan k 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 Systems† IEEE Transactions On Systems, Man, And Cybernetics—Part B: Cybernetics, 33( ), 2003, 514–521 [3] [3] Dr. S. AbrahamLincon, P. Selvakumar ? Design of PI Controller using Characteristic Ratio Assignment Method for Coupled Tank SISO Process? International Journal of Computer Applications (0975 – 8887) Volume 25– No. 9, July 2011 [4] Li LIANG ? The application of fuzzy PID contr oller 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