Saturday, March 14, 2020

Introduction to Electricity and Electronics

Introduction to Electricity and Electronics Electricity is a form of energy involving the flow of electrons.  All matter is made up of atoms, which has a center called a nucleus. The nucleus contains positively charged particles called protons and uncharged particles called neutrons. The nucleus of an atom is surrounded by negatively charged particles called electrons. The negative charge of an electron is equal to the positive charge of a proton, and the number of electrons in an atom is usually equal to the number of protons. When the balancing force between protons and electrons is upset by an outside force, an atom may gain or lose an electron. And when electrons are lost from an atom, the free movement of these electrons constitutes an electric current. Humans and electricity Electricity is a basic part of nature and it is one of our most widely used forms of energy. Humans get electricity, which is a secondary energy source, from the conversion of other sources of energy, like coal, natural gas, oil and nuclear power. The original natural sources of electricity are called primary sources. Many cities and towns were built alongside waterfalls (a primary source of mechanical energy) that turned  water wheels  to perform work. And before electricity generation began slightly over 100 years ago, houses were lit with kerosene lamps, food was cooled in iceboxes, and rooms were warmed by wood-burning or coal-burning stoves. Beginning with  Benjamin Franklins  experiment with a kite one stormy night in Philadelphia, the principles of electricity gradually became understood. In the mid-1800s, everyones life changed with the invention of the electric  light bulb. Prior to 1879, electricity had been used in arc lights for outdoor lighting. The lightbulbs invention used electricity to bring indoor lighting to our homes. Generating electricity An electric generator (Long ago, a machine that generated electricity was named dynamo todays preferred term is generator) is a device for converting mechanical energy into electrical energy. The process is based on the relationship between magnetism and electricity. When a wire or any other electrically conductive material moves across a magnetic field, an electric current occurs in the wire. The large generators used by the electric utility industry have a stationary conductor. A magnet attached to the end of a rotating shaft is positioned inside a stationary conducting ring that is wrapped with a long, continuous piece of wire. When the magnet rotates, it induces a small electric current in each section of wire as it passes. Each section of wire constitutes a small, separate electric conductor. All the small currents of individual sections add up to one current of considerable size. This current is what is used for electric power. An electric utility power station uses either a turbine, engine, water wheel, or other similar machine to drive an electric generator or device that converts mechanical or chemical energy to electricity. Steam turbines, internal-combustion engines, gas combustion turbines, water turbines, and wind turbines are the most common methods to generate electricity.

Wednesday, February 26, 2020

Memori Essay Example | Topics and Well Written Essays - 1000 words

Memori - Essay Example It all begun with a disagreement on matters of tribe and religion between my father a friend he had made soon after we had moved in to Australia. They had become easy friends especially in view of the fact that both of them and their families were Muslims in a predominantly Christian country. On that fateful day, the man invited my family to visit him and my father was glad to accept, my sister and I were ecstatic about the prospect of meeting other children since we had been told he had other girls with whom we could play with. The home was tastefully furnished and the decor bespoke a moderate but style conscious lifestyle, there were several Muslim texts displayed on a glass display giving the impression that the man was deeply religious like my father. The kitchen was beautifully decorated and from the excitement my mother showed as she examined the furnishings I could tell it was everything she had ever dreamt of in her ideal kitchen. After refreshments, my sister and I went upst airs to play with the little girls as the grownups talked in the living room. While the room was not decorated it looked just like as small looking box with two pink beds it had hundreds of toys. I had more fun than we could remember playing dress up with them especially when they gave us dresses to match theirs. I was given an elegant blue dress adorned with beautiful pink flowers, and it looked and felt so fantastic I could not find words to describe the feeling, I felt like a princess. We also played with their doll house which was full of tiny plates and chairs and for four hours, we forgot that there was a world outside our secluded heaven of fun and games just like Alice in wonderland. Although my family relatively close, I never really felt a very close connection with them, my father was a workaholic and he spent most of his time working or studying to be a doctor. My mother rarely had time for me since she was too busy being a health freak and monitoring our diet and making us eat â€Å"healthy,† while my sister was close to my age I did not find her very good since she seemed to only copy what I did. My two brothers are the last people I would play with since they are not only serious but very reserved and we almost never notice them since they seem lost each in their own world. Therefore, these two girls were the best thing to happen to me and we got along beautifully coming up with different games and I was sure they would be my friends forever. This is what made the events that followed so painful, I had convinced myself I had found my true best friends and I was to spend the rest of my childhood pinning for them knowing I would never have another chance to play with them. Abruptly, we were jerked back into the harsh realities of the outside world, strange noises were coming from the living room and there was shouting and banging of tables. The door to the bedroom was opened and my mother quickly dragged us from our new playmates were silen t with bewilderment just as we were. The girl’s mother was calm, mine looked terrified but their father and mine were each livid, I had never seen my father as angry as he was on that night, his pulsating veins seemed to push through his skin threatening to bust through and he looked as if he was on the edge of saying something but didn’t say a word. The girl’s father was equally angry and as they stood across from each other in the sitting room looking like

Monday, February 10, 2020

Indias Participation in Global Economy Essay Example | Topics and Well Written Essays - 3000 words

Indias Participation in Global Economy - Essay Example The Indian society is now subject to western imperialism and quite a distinct reflection of the western culture, styles, and language and business activity. The economic environment of India, after the reforms has predominantly changed from socialist policies to more liberal policies, facilitating an expansion of international trade. Some cultural values are very strongly established amongst the Indian workforce and may deter further expansion of international trade but Indian culture is one of business orientation because of its historical significance and industrial background and thus strongly supports trade activity. Yet there remain some economic challenges that may deter further growth of the economy. These include an inadequate infrastructure to support a growth rate of 8%. With so much international pressures to quality conformance and timely production, India must invest in up gradation of its ports, rail networks, roads, and power and water supplies. Hence, in order for Ind ia to capitalise on its economic benefits, it must overcome these economic challenges and increase its international market presence by developing indigenous brands and thus expanding international trade. 1.Problem Identification and Analysis With the highest population in the world of about 1.1 billion, second largest to China, India has made its way amongst the world’s leading economies in the year 2007. ... ccording to the World Bank Report, its economic growth rate was 8%, close to 10.4% of China, despite the high dependence of its economy on the agricultural sector (World Bank 2004). Recently the economy has moved towards massive production orientation in the manufacturing sector and there has been an observable proliferation of information technology and telecommunications. It is the augmentation within this sector, the software companies and call centres that have fuelled the economic growth in India. India has developed the right infrastructure to facilitate this rapid economic growth through development of an educated, English speaking workforce and thus has become a hub for outsourcing for large multinationals and overseas services to US companies (Banik 2007). Many companies like Ford Motors, General Motors and software companies have subcontracted their business services including customer service support, business support and troubleshooting computers, to this sector of Asia. Moreover, the country also has some skilled personnel to conduct customer surveys and research that provides the foundation for its international trade. Many companies are considering outsourcing their most expensive marketing process that is research, to the low cost researchers in India (Suresh 1999). The main reason that has fuelled this structural change is the emergence of a class characterised with young business professionals. It is also the culture of the country that promotes diligence, struggle and goal orientation (Kumar and Agarwal, Liberalization, Outward Orientation and In-house R&D activities of multinationals and local firms 2000). Therefore, the impact of globalization has been tremendous on Indian economy. With more and more companies looking to outsource in attempt to

Thursday, January 30, 2020

Clarion Boys Case Essay Example for Free

Clarion Boys Case Essay One problem in the Clarion School for Boys case is that employees did not have enough training on the system. On the survey taken, most employees responded that they were dissatisfied with the training they had received and most had training of only 1-3 hours. Since there was little training given on the system, the users were uncomfortable using it. It seemed that if they could not figure something out, they would give up and go back to doing it the old way. The bookkeeper commented, â€Å"I have been trying to finish this month’s books for the last two days, but I am having the same problems as last month. The accounts receivable software program is still giving me difficulties. I think I’ll just do them by hand this month.† When the system was first installed, the staff was excited about it but as time passed and there was no learning progression of the system, people became bored with it and stopped using it as much. Another comment made by the education supervisor was, â€Å"There was a lot of initial excitement about e-mail, but I haven’t heard much about it since then. I know I’ve been too busy to lean it myself, and I missed the training sessions because of other meetings.† I personally worked with a company where a new system was implemented and because of the lack of training and tutorials, there were major problems. For months the system was incorrect, causing many hours of overtime as well as many mess ups that had to be corrected. Familiar to this case, there was not a plan of action nor any goals set or a timeline for certain projects to be mastered. There was a lack of training causing the staff to have little confidence in their abilities to work the system. This problem falls under strategic planning. One component of strategic planning is training. Under strategic planning, the employees should be encouraged to be active in the system. They should be encouraged through training programs and help sessions. The team should establish goals and time lines of what they want to have accomplished by a specific date. In this case, there was not a formal plan or measures set. They were not able to judge how they were doing because they did not make a strategic plan to begin. I think this is a minor problem. I think the major problem is that once the system was implemented, there was no enforcement created. It seemed that the users did not want to get out of their comfort zone and learn something new. There was not much communication at the beginning and everyone seemed to be doing their own thing.

Wednesday, January 22, 2020

An Overview of Capital Punishment Essay -- Capital Punishment Death Pe

â€Å"The question with which we must deal is not whether a substantial proportion of American citizens would today, if polled, opine that capital punishment is barbarously cruel, but whether they would find it to be so in light of all information presently available.†- Justice Thurgood Marshall Imagine a man who commits murder once, is given a fifteen-year jail sentence and is returned to the streets where he kills again. He is imprisoned again only to be released. This could happen since almost one in ten death row inmates has been convicted of murder at least once. That means that some death row inmates have been given more than one chance to rehabilitate in prison and continue to commit violent crimes. Should the United States justice system continue to let violent criminals back on the streets where they are likely to commit murder again? Capital punishment is one of the oldest forms of punishment in the world. Most societies have considered it a fair punishment for severe crimes. It is even mentioned as an appropriate punishment in the Bible. American colonists used capital punishment before the United States was a country, and most states use it today. Currently, however, there is a great deal of controversy surrounding the death penalty. Capital cases are long and expensive, and there is no proof as to whether capital punishment deters crime. For these reasons total abolition may be the best way to resolve the capital punishment controversy. If the laws concerning capital punishment were modified, however, capital punishment could become much cheaper, and possibly a lot more effective. – Steve Brinker Capital Punishment: Give It A Chance Since the beginning of man, people have been put to death. Capital punishment has been used all over the world as a means of punishing people for their crimes. Here in America, people are usually given a trial for their crime, judged upon by the jury and judge, and then finally decided upon their final verdict. If the crime is serious enough, the person is sent to spend time on death row in a maximum-security prison. The judge then sets a date when the person is to be executed. The person has an opportunity to appeal, which must be granted by the governor in the state in which the person is imprisoned. If the pers... punishment has been an instrument of government authority since it was first written into Hammurabi’s Code nearly four thousand years ago, if not before. In today’s modern, more â€Å"enlightened† times, many find the practice barbaric, and object on principle. Others believe the practice is sometimes justified, but object on grounds of iniquities in its application. Still others believe capital punishment lacks â€Å"teeth†, and would be a more effective deterrent to crime if used less sparingly, and with less of the Byzantine judicial process currently required. Recent reforms here in Florida reflect the latter view. In an effort to reduce the time actually spent on Death Row by the condemned, the State of Florida is altering its law to require that all appeals be complete within five years of sentencing in the absence of new evidence, and must be submitted simultaneously, not sequentially. At the same time, other states, such as Illinois, have imposed a moratorium on executions. It is an issue few are in total agreement about. Most Americans, however, agree that in the most heinous, horrific cases, the condemned has earned his fate.

Tuesday, January 14, 2020

Romeo and Juliet 5 Paragraph Essay

In many literary works, there are methods that authors use to make a story better. In The Tragedy of Romeo and Juliet by William Shakespeare, dramatic irony is the driving method. Dramatic irony is something in which characters do not know something, but the reader or audience knows what the true reality is. According to some researchers, â€Å"A staple of Elizabethan and Shakespearean drama was dramatic irony† (Halio 25). Furthermore some researchers also belive that dramatic irony is very prominent in the play, â€Å" One of the more prominent literary devices in the play is irony† (Sauer 673).Romeo and Juliet, and also their friends and families face a lot of instances of dramatic irony in the story. Dramatic irony creates suspense and adds to the conflict that exists between the Capulets and the Montagues in Shakespeare’s, The Tragedy of Romeo and Juliet. Dramatic irony in Romeo and Juliet occurs when Juliet and Romeo fall in love with each other at first sig ht, when Romeo’s friends don’t know that Romeo and Juliet have fallen in love with each other, and when Lady Capulet thinks that Juliet is crying about Paris, not Romeo. Romeo in the beginning of the play had been crying about how he could not get Rosaline, a Capulet.After all of the crying and weeping, Benvolio and Mercutio try to get Romeo to go to a party at the Capulet house. Romeo only agrees so that he might be able to catch a glimpse of Rosaline. When he goes to the party, rather than falling for Rosaline, he sees another beautiful girl that he instantly falls in love with. This girl is Juliet, the cousin of Rosaline, and she also falls in love with Romeo at first sight as well. Romeo and Juliet meet, they dance, but still do not know who each other are. Romeo before leaving the party asks the nurse who that girl (Juliet) is and she replies by saying that Juliet is the daughter of Lady Capulet.Romeo is taken away completely by this and says, â€Å"O dear accoun t! My life is my foe’s debt† (Romeo and Juliet 1. 5. 118). Juliet also asks the nurse and the nurse responds by saying that Romeo is a Montague, and like just like Romeo, she is also taken away. The dramatic irony of this is the fact that Romeo’s (Montague) and Juliet (Capulet) families are very high profile enemies to each other. The fact that they have fallen in love with each other is a very ironic, as now if they continue their love to one another, they are sure to face major problems down the line.After both Romeo and Juliet have fallen in love with each other, nobody in all of Verona and beyond knows about it, not a single person except Romeo and Juliet. Many people still believe that Romeo is still falling for Rosaline. In fact, at one point Mercutio exclaimed, â€Å"Why that same pale hearted wench, that Rosaline torments him, so that he will sure run mad† (Romeo and Juliet 2. 4. 4-5). Even until after their marriage, both Romeo and Juliet are pret ty secretive about the love or the marriage, except for Juliet expressing her feeling to the nurse.Juliet only told the nurse because she loves the nurse and trusted her as well, and needed the help of the nurse to get married to Romeo. The first time that the majority of people would know about the marriage or love would be when Friar Lawrence would publicly announce it to Verona. The dramatic irony in all of this is the fact that after all of the major events (fights, family brawls, and the murder of Mercutio and Tybalt), no one knows that one of the Capulets is married to one of the Montagues. Something like this at the time period would be extremely unacceptable, and even in the time period would be ironic.After news of the murder of Tybalt and Mercutio is delivered to Juliet through the Nurse, Juliet is devastated. Due to the nurse being so unclear, Juliet thinks that both Romeo and Tybalt both have died. Once things clear up, Juliet figures out that Romeo has killed Tybalt, an d her first reaction to this is anger toward Romeo. After things cool down, she feels bad that she has said this, and she takes her words back. Once Juliet learns about the punishment Romeo gets she feels the worst she has ever felt. Romeo was given the sentence of exile, which in the time period meant no connection to people, whatsoever.Due to this Juliet knows that she might never ever see the love of her life, at all. To Juliet this meant that there would be no more Romeo, â€Å"Juliet feels that Romeo is no longer her lover, and she can’t have him again† (Moffat 139). She started crying a lot after this, so much that her parents had to come to her room and see what was going on. When Lady Capulet inquired as to why Juliet was crying, Juliet right away said that she was crying about the horrible death of Tybalt. Lady Capulet responds to this by saying, â€Å"Well, girl thou weep’st not so much for his death, as that the villain lives which slaughtered himâ⠂¬  (Romeo and Juliet 3. . 65-66). Juliet had just tricked her mother into thinking that she wasn't crying for Romeo, but rather Tybalt. The dramatic irony in this case is that the reader knows that Juliet is lying to her mother, but Lady Capulet actually believes this, and goes along with it. Dramatic irony was a driving method of keeping things fresh in Shakespeare’s The Tragedy of Romeo and Juliet. One of the most prominent instances of dramatic irony in the play was when Romeo and Juliet fall in love with each other, causing for great irony in the fact that they did not know.Another instance of dramatic irony is when nobody but Romeo and Juliet know about the love that they share, making great irony because a lot of events occur after their marriage. And finally another instance of dramatic irony is when Juliet tricks her mother into thinking that she is crying to Tybalt rather than Romeo. If in any of these examples, Romeo and Juliet were to know what was going to happe n, there really would be no story. It was important that Shakespeare implemented dramatic irony into the play, as without it, the story would be quite plain and boring.

Monday, January 6, 2020

How to Make 0.1 M Sulfuric Acid Solution

Instructions for making a 0.1M solution of sulfuric acid or H2SO4. Materials 3.7 mL concentrated (18M) sulfuric acid (H2SO4)distilled water Procedure Pour 3.7 mL concentrated sulfuric acid into 500 mL distilled water.Dilute the solution to 1.0 liter. Sulfuric Acid Info Important: Adding Sulfuric Acid to WaterHow To Make Sulfuric AcidSulfuric Acid and Sugar Chem DemoHow To Prepare other Sulfuric Acid Solutions