Saturday, November 16, 2019

LG Mobile Essay Example for Free

LG Mobile Essay Founded January 5, 1947 Headquarters Address LG Twin Towers, 20 Yoido-dong, Youngdungpogu, Seoul, South Korea Our Businesses Electronics, Chemicals, Telecommunications and Service (Number of Companies: 53) LG Electronics LG Display LG Innotek Hiplaza Hi Logistics System Air-Con Engineering Siltron Lusem LG Chem SEETEC Coca ·Cola Beverage Company LG Hausys LG TOSTEM BM HAUSYS ENG LG Life Sciences LG MMA LG TeleCom CS Leader A†¢IN LG Dacom LG Powercom DACOM Crossing CS ONE Partner LG CNS LG N-Sys 1947 1953 1958 1967 1970 1974 1995 †¢Chairman In Hwoi Koo founds LG by establishin g Lak Hui Chemical Industrial Corp. (now LG Chem) †¢Lak Hui Industry establishe d (now LG Internatio nal Corp.) †¢Goldstar Co. establishe d (now LG  Electronics) †¢Honam Oil Refinery Co. establishe d (now GS Caltex of GS Group) †¢Cha Kyung Koo takes office as Chairman †¢Lak Hui changes its name to Lucky Co., Ltd †¢Bon Moo Koo takes office as Chairman †¢ New Corporate Identity (CI) establishe d (Lucky Goldstar LG) Goldstar produced first electronics in Korea. 1959 1960 1961 1965 1966 1968 1969 1973 1974 1979 1981 1982 1983 1984 1985 †¢First radio †¢First electronic fan †¢First telephone †¢First refrigerator †¢First black and white TV †¢First air room conditioner †¢First elevator, escalator, washing machine †¢First cassette recorder †¢First PMC single station equipment †¢First videotape recorder †¢first electronic VTR †¢First color video camera †¢First compact disc player in Korea †¢First multiplex television with sound and color in Korea †¢First laser machines in Korea, single unit video 8 mm VTR in Korea 1958-1995 1962 1975 1976 †¢ Goldstar introduces private loans for the first time in Korea †¢ Goldstar establishes the Central Research and Development Institute †¢ Goldstar Precision Industry (currently LG Innotek Co., Ltd.) established 1977 1978 1989 †¢ Goldstar develops color television †¢ Goldstar achieves exports to the amount of 100 million USD †¢ Goldstar Industrial Systems develops the fourth direct drive ultra precision robot in the world 1995 †¢ LG Electronics Inc. acquires Zenith, the largest electronics company in the United States 1995-Today 1995 †¢Chairman Bon Moo Koo created and enforced Jeong-Do Management* and No. 1 LG as the companys core management goals. 1996 †¢LG Electronics Inc. establishes the LG-IBM PC company 1999 †¢LG Electronics Inc. develops the thinnest plasma display panel in the world 2001 †¢LG Electronics becomes the worlds first to develop organic EL for IMT-2000 2004 †¢LG Electronics develops the worlds first land-based digital multimedia broadcasting phone †¢LG Electronics unveils 3G mobile phones for Hutchison 2005 †¢For eight years in a row, LG Electronics is number one in the world for sales of optical storage devices †¢LG Electronics opens the LG Digital Reading Room in the National Library of Russia †¢LG Electronics develops the worlds fastest 3D game phone 2006 †¢LG Electronics wins the 2006 Hong Kong Design Award for its Chocolate phone †¢LG Electronics unveils the worlds thinnest ceiling-bound system air conditioner †¢LG Electronics unveils the worlds slimmest (33-cm) flat-panel TV 2007 †¢LG Electronics is ranked first in the global CDMA market for two consecutive years ï  ½ ï  ½ ï  ½ Revenues: $12.1 billion (FY 2008) that increased 10.3% compared with FY 2007  Collaboration with Microsoft Corporation,  Android software under Google Inc., Wal-Mart, EBay, Toyota Threat Case of LG 830 Spyder cell phone ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ Jeong-Do Management and LGs management principles Increase the value for the shareholders and investors Improve reliability, flexibility and responsibility Increase the speed of responding to the consumers’ feedbacks Human recourses (Attract Foster) Music ï  ½ business mobility Nokia software communication game Global Market Local Market But in the United States, Nokias market share has been steadily declined. Nokia has to develop more CDMA mobile phones. Because the U.S. wireless operators have a strong control on the market, while the wireless technology in the United States has also been less advanced than Europe. ï  ½ Motorola was founded in 1928. It is the leader in the world’s chip manufacturing and electronic the communications. direct US Veriz on sales Gove rnme nt WalMart distribut ors products widely sold through Retailers dealers licensees Main customers of Motorola ï  ½ ï  ½ ï  ½ Because of lacking of compelling new phones, the market share of Motorola’s mobile phones continue to depress. Samsung replaced the location of Motorola becoming the secondlargest mobile phone marker. Now Motorola can only rank at third. Samsung slips into No.1 mobile phone slot in US Leaves Motorola sadly Second ï  ½ Just as LG, Samsung Group is also a South Korean company which offering various industries including electronics and mobile phones. In 1973ï ¼Å'Martin Cooper invented the first mobile phone in the world. The 1G phone looks boxy and can only be served as movable but hardly portable. Many people call this cell phone as bricks and mortar or â€Å"KINGBOX†. Future mobile phones will be emphasis on security and data communication. On the one hand it will strengthen the protection of personal privacy, on the other hand the data services will enhanced by more researches and development. ï  ½ ï  ½ A large-scale of 3G networks is sweeping the whole global mobile phone market. At the same time, the global market of mobile phones is facing its biggest threat. Some common tools of International phony such as Skype, Icq and MSN are more and more convenient and popular. The future of Internet telephony will become a mainstream form of network communication which is under the trend of scientific and technological progress and perfection instead of mobile phones. General Outline Troubles Advantages Milestones 1997: 1962: 1958: Goldstar Established (LGE) LGE expands business to the U.S. with radio’s. Supplied United state’s Ameri-tech with mobiles phones. ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ 115 companies: 84 subsidiaries, 34 liaison offices (250 companies total) Workforce: 84,000 36 RD and Design Centers: 30 RD, 6 design Workforce: 17,000 63% of workforce employed overseas. (101,000 of 160,000 total) Global Subsidiaries/Companies: Europe: 22 China: 16 Middle East Africa: 11 Asia: 10 CIS: 7 South America Central America: 10 United States: 7 (Currently number 2 in U.S. market behind Motorola) Japan: 1 Global Sales KRW in BS Trillions 4.6 50 45 5 40 35 30 25 20 15 10 5 6 5 10 10 10 10 11 10 13 12 11 Home Ent. AC 16 Home App. 4.5 8.6 15.8 D.Media D.Display D.App. Mobile 0 2005 2006 2007 2008 2008 Q2 % Market Share Others, 16.6 SonyEricsson, 8.2 Nokia Nokia, 41 Motorola LG, 9.3 Samsung, 15.4 Motorola, 9.5 Samsung LG SonyEricsson Others ï  ½ Fluctuations in KRW: (Competitive exports) 2005: $1(USD)= 1,103 won 2006: $1(USD)= 955 won 2007: $1(USD)= 929 won 2008: $1(USD)= 1,103 won 2009: $1(USD)= 1,183 won ï  ½ NAFTA 1994/WTO 1995 ï  ½ Late Start (counter: RD, Design, Localization) ï  ½ High-End/Quality (counter: LG Chocolate consignment, PBL) ï  ½ PRADA – Luxurious PRADA phone ï  ½ Microsoft – Windows Mobile 6.0/Smartphones ï  ½ Mark Levinson (Audio Systems) – Music Phones (Chocolate) ï  ½ Google – Pre-installments in phones. ï  ½ Schneider – Mobile phone camera lenses. ï  ½ ï  ½ ï  ½ LGE sports sponsorships/partnerships Formula 1 Multi-year partnership 1/09. Official consumer electronics, mobile phones and tech. Viewed by 588 million. ï  ½ ï  ½ International Cricket Council Official Sponsor from (ICC) 2002-2015. Following of 2-3 Billion: U.K., Australia, India, South Africa and other British Commonwealth countries. Football Club Sponsors: ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ ï  ½ Sao Paulo Fulham Liverpool Olympic Lyon Hungary National Team Iraq National Team Greece National Team Russia National Team LG Amsterdam Tournament LG World Cup Most Popular Sports in the world: (approx. 6.71 billion people) 1. Soccer – 3.5 billion 2. Cricket – 2-3 billion 3. Field Hockey – 2 billion 4. Tennis – 1 billion 5. Volleyball – 900 million 6. Table Tennis – 800 million 7. Formula 1 – 588 million 8. Baseball – 500 million 9. Golf – 400 million 10.Gridiron Football – 400 million 1995 †¢Acquired U.S. based Zenith 1997 †¢CDMA (3G) Handsets produced 1998 †¢60’’ plasma T.V. 2000 †¢Launched the world’s first Internet refrigerator 2001 †¢World’s first internet washing machine 2003 †¢Number 1 global producer of CDMA phones 2004 †¢Advertised world’s first 71† plasma T.V. 2005 †¢ 4th largest mobile phone supplier globally †¢ 18 million Chocolate phones sold. 2008 †¢ LG Mobile selected as the supplier for the â€Å"World Phone† †¢ World’s first 3G watch phone with full touch screen. †¢ LG Dare phone wins CES â€Å"Best of Innovations† award 2009 †¢ LG Secret phone wins â€Å"red dot design† award †¢ LG KS 360 phone wins â€Å"iF Design’ award. FEATURED PRODUCTS ï  ½ Brand Name ââ€" ¦ top 10 brand in electronics 2008 ï  ½ Marketing in UK ââ€" ¦ LG hired Alcone Marketing ââ€" ¦ 10% of market share for mobile phones ï  ½ Design ââ€" ¦ LG Prada: top 10 Fashion designs in Europe ââ€" ¦ Bluetooth Handsets : drive and talk ï  ½ Consumers’ satisfaction ââ€" ¦ J.D. Powder and Associates’ study ï  ½ Supply management †¢ Fashion phone designs ï  ½ Contracts with football clubs ââ€" ¦ Liverpool ââ€" ¦ Fulham †¢ Global Recession ï  ½ Competitors ââ€" ¦ Nokia Corporation ââ€" ¦ Motorola, Inc ââ€" ¦ Samsung Group ï  ½ Global Recession ï  ½ Short-term: ââ€" ¦ Improve supply management ââ€" ¦ Satisfy lower market ââ€" ¦ Bluetooth Handsets : drive and talk ï  ½ Long term: ââ€" ¦ ââ€" ¦ ââ€" ¦ ââ€" ¦ Increasing fashion designers field American Football in USA Increase market share in Asia Buying small companies or stocks

Thursday, November 14, 2019

Be true to Yourself :: essays research papers

Be True To Your Self The question, â€Å"What is involved in being true to your self?† is very complicated. There are many aspects to this question. First you would need to know what is meant by being true. Being true is the act of putting forth sincerity, or being genuinely faithful. It is honesty, seriousness, and earnestness. Next you would need to realize what it means to be a self. In class we discussed the difference between animals, rational animals, and people. This topic also came up in the reading about the concentration camps. Frankl quotes, â€Å"†¦he (a guard) playfully picked up a stone and threw it at me. That, to me, seemed the way to attract the attention of a beast, to call a domestic animal back to its job, a creature with which you have so little in common that you do not even punish it. The most painful part of the beatings is the insult which they imply.† This shows how low the guards in the camps treated the Jews. They treated them like animals; they treated them as if they were not selves. The whole experience was extremely dehumanizing. I have never experienced anything so horrific in my lifetime but I have been through a dehumanizing affair. I was in high school when many of the boys would make comments about my womanly features in a derogatory fashion. Although they were just being playful and possibly trying to flirt, god-forbid, I would tell them off or sometimes just ignore it but it made me realize how insignificant those boys were and how that’s not all I was. I was and still am more than the derogatory terms they would call me. It pointed out more important things like intellect, and intelligence instead of physical image. It also made them look like animals. The primal concern for animals is pleasure and survival, the same for rational animals but they also strive for success, and finally people, our primary motivat ion in our lives is the search for meaning. That is first nature to us. The meaning of life is a very confusing question but to be able to answer it you must realize that it differs for everyone. There is never only one real answer. Everyday it can change for each individual. Everyone has their own way of living; they have their own thoughts and beliefs so therefore each persons answer to the meaning of life will be their own private version.

Monday, November 11, 2019

Langston Hughes’ “Salvation” Essay

Some people may believe that ‘salvation’ comes to those who deserve it. Others may believe that salvation comes to those who seek it. Still, there are those who believe that salvation is not a ‘privilege’ but is rather a free gift for all. But for Langston Hughes, it appears that salvation for him is not what it seems to be. Apparently, Langston projects the image that a child’s innocence may be a way of looking at salvation in such a way that our basic senses and sensibilities are put back to their simplest and uncorrupted state, devoid of fear from non-conformity from dogma and filled with eagerness to experience what is real. Perhaps Langston Hughes is attempting to channel across the message that adulthood or perhaps our ‘matured’ state, so to speak, has dictated so much of what we believe in that we forget that we were once innocent beings eager to absorb what the world was willing to give us. This is the point where I would like to agree with Langston Hughes. In the many events in our lives that shape who we are and what we want—apart from the things that we want to want—our daily experiences have largely contributed to our personality and character. Sometimes an encounter with an atheist will strike your faith and religious beliefs and be put aback into a state of doubt, weighing odds at both ends and figuring out if your faith is strong enough to resist the temptation of atheism. Or perhaps an encounter with a tribesman living in a far-off, desolate forest may change the way you look at life, especially in terms of material possession. Whether or not we have already encountered these things, it can hardly be doubted that our personal experiences shares a large role in shaping our identities as individuals. As we grow, we start to acquire more of these experiences. Not surprisingly, our earlier knowledge is replaced with fresher ones, relieving ourselves of the burden of having to carry the weight of obsolete beliefs as we go on with our lives. This is the point where Langston Hughes may very well agree: we have grown to a point that we can remember all but one—our state of innocence. It does not surprise me at all to see individuals busy with the complexities of life. After all, people change and so are the things we experience. The evolution of humanity, apart from the scientific sense, has paved the way for more of these complexities. And sometimes we are prompted to lie or to deceive ourselves out of innocence in order to blend together with our environment. In order to convince other people, Hughes lied which made others reaffirm their belief in salvation. No doubt the believers would believe all the more in cases where their beliefs are reaffirmed at least by what they see. But sometimes—in fact, many times—what they see is not the one we or others see. In the end, we are confronted with the startling feeling of self-deception after convening and bending to what others believe in. We mourn over our ‘mistakes’ and hope to convince ourselves that all will be well although it simply cannot be the case after our actions have been committed. Salvation is such a broad concept that it simply cannot be confined within the closed spaces of churches and congregations alone. If, indeed, salvation is free for all then why must there be a need to encroach ourselves into religious orders? And for God or Allah’s name, where among these hundreds, if not thousands, of religious dominions are we to find salvation? Langston Hughes’ â€Å"Salvation† embodies these important points and the rest of what has been said here. Maturity betrays us in such a way that our innocence is hindered from allowing us to view the world outside the box detached from whatever it is that ties us to dogma, delusion and self-proclaimed salvation. Reference Hughes, L. (2007). Salvation. Retrieved November 7, 2007, from http://www. courses. vcu. edu/ENG200-dwc/hughes. htm

Saturday, November 9, 2019

Understanding of Participant Observation

Abstract This essay discusses participant observation as a method of collecting anthropological data from the tube. This method allows researchers to gather information through observation and interviewing of individuals who are taking the tube as a means of transportation. Strengths of this method include directly observing how people interact in the tube and writing down this observation for future interpretation. This method allows observers to use their five senses to interpret data collected from the tube. Limitation of this method includes possible subjectivity of interpretation of data. Introduction This essay will discuss participant observation as a method of collecting anthropological data from commuters in the tube. The discussion part of this essay will explore the strengths and limitations of this method. Discussion Participant observation is an ethnographic method of qualitative studies that allows researchers to observe the sample population in their natural setting (Murchison, 2010). This allows researchers to observe and describe situations using the different senses of the body (Murchison, 2010). Hence, it is said that participant observation is a written photograph of what is happening in the field (DeWalt and DeWalt, 2011). Polit et al. (2013) explains that a detailed description of an event or people’s experiences allow observers to analyse situations exhaustively. In terms of my study, I chose participant observation since I felt it would help me gather relevant data on what is happening in the London Underground. While this type of observation allows for more in-depth observation of events and people’s actions (Muchison, 2010), participant observation has also some limitations. First, there is a need to immerse one’s self in the world inhabited by participant. Thi s is accomplished by taking the tube as a mode of transportation to experience what others are experiencing when taking this transportation. Part of participant observation is to interview people regarding their experiences. This might be a challenge since participants might not be willing to be interviewed while in the tube. It should be noted that there are many commuters in the tube who do not know each other. This might be a challenge when collecting data since participants might be wary of answering questions from a researcher (Hek et al., 2011). Polit et al. (2013) reiterate that participants might not act naturally since they are aware that the researcher is observing them. This presents some bias in the data since behaviour of the participants might not be reflective of their actual behaviour. Meanwhile, reflexivity in data would allow researchers to interpret data according to the perceptions of the participants. Researchers might also bring a degree of bias and subjectivity when they collect data and information from the participants (Murchison, 2010). The researcher’s own perceptions, feelings and knowledge might be used to interpret actions, conversations and expressions manifested by people riding in the tube. There is the risk that interpretation of data becomes highly subjective. However, this could be avoided if the researcher allows participants to confirm findings and inform the researcher whether interpretation of the interviews is accurate. Hek et al. (2011) emphasise that subjectivity could be prevented by objectively interpreting data. This is done through adopting a nonjudgmental attitude, being open and genuinely interested in what participants are saying (Oermann, 2010). This would lead to data that are more reliable since researchers allow participants to verify the findings. In my experience, I adopted a nonjudgmental attitude to help me empathise with what the partic ipants are saying to me. Placing myself in their situation helped me better understand what they are expressing to me during my collection of data. Parahoo (2006) states that it is important to define phenomena and experiences according to the participant’s perceptions. Reflection I felt that I am part of the community of commuters in the tube since I regularly use this as a mode of transportation. I felt that this is an advantage to me since in-depth analysis of the behaviour of the commuters involves immersing one’s self in the actual environment. Hence, my previous experiences commuting in the tube could help me understand what other people might be experiencing while commuting in the tube. I also realised that different people ride the tube and their diverse background could add to the complexity of analysing the cultural behaviour of commuters in the tube. However, I also realised that the ethnographic method would yield valuable information on the general behaviour of commuters in the tube. Finally, ethnographic method was appropriate for my research question since this helped me form an objective and detailed description of what is happening in the tube. Conclusion Participant observation is an effective tool in collecting anthropological data since this allows researchers to immerse in natural settings. This helps researchers collect more reliable data as participants are observed in actual settings. References: DeWalt, K. & Dewalt, B. (2011) Participant observation: A guide for fieldworkers. Plymouth, United Kingdom: Rowman Altamira. Hek, G., Judd, M. & Moule, P. (2011) Making Sense of Research, 4th ed., London: Sage Publications. Murchison, J. (2010) Ethnography Essentials: Designing, conducting, and presenting your research, London: John Wiley and Sons. Oermann, M.H. (2010) Writing for publication in nursing, 2nd ed. Philadelphia, Lippincott. Parahoo, K. (2006) Nursing Research: Principles, Process and Issues, 2nd ed., London: Palgrave Macmillan. Polit, D., Beck, C.T. and Hungler, B.P. (2013) Essentials of Nursing Research. Methods, Appraisal and Utilization, 8th ed. Philadelphia, Lippincott.

Thursday, November 7, 2019

A

We live in an age of communication. Communication is the problem and the opportunity addressed by a great deal of technology design and development. But because communication is an interpersonal and a social phenomenon, technology issues must be approached with a particular appreciation of human and social factors. The organization of societies today requires effective global communication between diverse and far-flung social and cultural systems. Only through technical mediation are we able to maintain the flows of commerce and information required by the world-wide interdependence. Technologies of communication become the means of production, or production format, of communication. Their use in communication is not transparent. In fact, technologies introduce new contingencies and context into communication. Analysis of communication and interaction in society today needs to account for the transformative effects of mediation. Technologies are rational by design, and in use, they rationalize human activity. Human communication and interaction, however, are neither rational nor designed. The difference between the technical and the human shows up in technology at what we call the "interface." In our case, we will consider this not just a user interface, but a social interface. It is social because it translates communication (messages, content) while also facilitating the subtle and tacit exchange of interpersonal acknowledgments. The latter, though they don't "say" anything, reproduce our relations. Social interface issues generally involve ambiguities of communication, intent, outcome and so on. These ambiguities result from technology's mediation of practices in which individuals are normally able to address and resolve ambiguities as they come up. It's at the social interface where the distinction between communication's content and participants' relationships becomes an issue, because the technology that's good for transmi... A Free Essays on N/A We live in an age of communication. Communication is the problem and the opportunity addressed by a great deal of technology design and development. But because communication is an interpersonal and a social phenomenon, technology issues must be approached with a particular appreciation of human and social factors. The organization of societies today requires effective global communication between diverse and far-flung social and cultural systems. Only through technical mediation are we able to maintain the flows of commerce and information required by the world-wide interdependence. Technologies of communication become the means of production, or production format, of communication. Their use in communication is not transparent. In fact, technologies introduce new contingencies and context into communication. Analysis of communication and interaction in society today needs to account for the transformative effects of mediation. Technologies are rational by design, and in use, they rationalize human activity. Human communication and interaction, however, are neither rational nor designed. The difference between the technical and the human shows up in technology at what we call the "interface." In our case, we will consider this not just a user interface, but a social interface. It is social because it translates communication (messages, content) while also facilitating the subtle and tacit exchange of interpersonal acknowledgments. The latter, though they don't "say" anything, reproduce our relations. Social interface issues generally involve ambiguities of communication, intent, outcome and so on. These ambiguities result from technology's mediation of practices in which individuals are normally able to address and resolve ambiguities as they come up. It's at the social interface where the distinction between communication's content and participants' relationships becomes an issue, because the technology that's good for transmi...

Tuesday, November 5, 2019

How To Calculate Avogadros Number Experimentally

How To Calculate Avogadro's Number Experimentally Avogadros number isnt a mathematically derived unit. The number of particles in a mole of a material is determined experimentally. This method uses electrochemistry to make the determination. You may wish to review the working of electrochemical cells before attempting this experiment. Purpose The objective is to make an experimental measurement of Avogadros number. Introduction A mole can be defined as the gram formula mass of a substance or the atomic mass of an element in grams. In this experiment, electron flow (amperage or current) and time are measured in order to obtain the number of electrons passing through the electrochemical cell. The number of atoms in a weighed sample is related to electron flow to calculate Avogadros number. In this electrolytic cell, both electrodes are copper and the electrolyte is 0.5 M H2SO4. During electrolysis, the copper electrode (anode) connected to the positive pin of the power supply loses mass as the copper atoms are converted to copper ions. The loss of mass may be visible as pitting of the surface of the metal electrode. Also, the copper ions pass into the water solution and tint it blue. At the other electrode (cathode), hydrogen gas is liberated at the surface through the reduction of hydrogen ions in the aqueous sulfuric acid solution. The reaction is:2 H(aq) 2 electrons - H2(g)This experiment is based on the mass loss of the copper anode, but it is also possible to collect the hydrogen gas that is evolved and use it to calculate Avogadros number. Materials A direct current source (battery or power supply)Insulated wires and possibly alligator clips to connect the cells2 Electrodes (e.g., strips of copper, nickel, zinc, or iron)250-ml beaker of 0.5 M H2SO4 (sulfuric acid)WaterAlcohol (e.g., methanol or isopropyl alcohol)A small beaker of 6 M HNO3 (nitric acid)Ammeter or multimeterStopwatchAn analytical balance capable of measuring to nearest 0.0001 gram Procedure Obtain two copper electrodes. Clean the electrode to be used as the anode by immersing it in 6 M HNO3 in a fume hood for 2-3 seconds. Remove the electrode promptly or the acid will destroy it. Do not touch the electrode with your fingers. Rinse the electrode with clean tap water. Next, dip the electrode into a beaker of alcohol. Place the electrode onto a paper towel. When the electrode is dry, weigh it on an analytical balance to the nearest 0.0001 gram. The apparatus looks superficially like this diagram of an electrolytic cell except that you are using two beakers connected by an ammeter rather than having the electrodes together in a solution. Take beaker with 0.5 M H2SO4 (corrosive!) and place an electrode in each beaker. Before making any connections be sure the power supply is off and unplugged (or connect the battery last). The power supply is connected to the ammeter in series with the electrodes. The positive pole of the power supply is connected to the anode. The negative pin of the ammeter is connected to the anode (or place the pin in the solution if you are concerned about the change in mass from an alligator clip scratching the copper). The cathode is connected to the positive pin of the ammeter. Finally, the cathode of the electrolytic cell is connected to the negative post of the battery or power supply. Remember, the mass of the anode will begin to change as soon as you turn the power on, so have your stopwatch ready ! You need accurate current and time measurements. The amperage should be recorded at one minute (60 sec) intervals. Be aware that the amperage may vary over the course of the experiment due to changes in the electrolyte solution, temperature, and position of the electrodes. The amperage used in the calculation should be an average of all readings. Allow the current to flow for a minimum of 1020 seconds (17.00 minutes). Measure the time to the nearest second or fraction of a second. After 1020 seconds (or longer) turn off the power supply record the last amperage value and the time. Now you retrieve the anode from the cell, dry it as before by immersing it in alcohol and allowing it to dry on a paper towel, and weigh it. If you wipe the anode you will remove copper from the surface and invalidate your work! If you can, repeat the experiment using the same electrodes. Sample Calculation The following measurements were made: Anode mass lost: 0.3554 grams (g)Current(average): 0.601 amperes (amp)Time of electrolysis: 1802 seconds (s) Remember:One ampere 1 coulomb/second or one amp.s 1 coulombThe charge of one electron is 1.602 x 10-19  coulomb Find the total charge passed through the circuit.(0.601 amp)(1 coul/1amp-s)(1802 s) 1083  coulCalculate the number of electrons in the electrolysis.(1083 coul)(1 electron/1.6022 x 1019coul) 6.759 x 1021  electronsDetermine the number of copper atoms lost from the anode.The electrolysis process consumes two electrons per copper ion formed. Thus, the number of copper (II) ions formed is half the number of electrons.Number of Cu2  ions  ½ number of electrons measuredNumber of Cu2  ions (6.752 x 1021  electrons)(1 Cu2  / 2 electrons)Number of Cu2  ions 3.380 x 1021  Cu2  ionsCalculate the number of copper ions per gram of copper from the number of copper ions above and the mass of copper ions produced.The mass of the copper ions produced is equal to the mass loss of the anode. (The mass of the electrons is so small as to be negligible, so the mass of the copper (II) ions is the same as the mass of copper atoms.)mass loss of electrode mass of Cu2  ions 0.3554 g3.380 x 1021  Cu2  ions / 0.3544g 9.510 x 1021  Cu2  ions/g 9.510 x 1021  Cu atoms/g Calculate the number of copper atoms in a mole of copper, 63.546 grams.Cu atoms/mole of Cu (9.510 x 1021  copper atoms/g copper)(63.546 g/mole copper)Cu atoms/mole of Cu 6.040 x 1023  copper atoms/mole of copperThis is the students  measured  value of  Avogadros  number!Calculate percent error.Absolute error: |6.02 x 1023  - 6.04 x 1023  | 2 x 1021Percent error: (2 x 10 21 / 6.02 x 10 23)(100) 0.3 %

Saturday, November 2, 2019

How do US elections differ from the Russian ones Term Paper

How do US elections differ from the Russian ones - Term Paper Example From this research it is clear that elections in the United States and Russia have their own unique features and characteristics that distinguish them from each other. Even though electoral processes share some similarities and characteristics, most contemporary democracies and jurisdictions have their own unique electoral systems that are protected by their constitutions. Most constitutions have detailed voting systems and arrangements that convert people’s votes into meaningful political decisions. The US has its own unique ways of dealing with election related issues, and, so does Russia. For example, in the United States, when the first round of elections does not produce a winner by absolute majority, the senate is given the power to elect the president. In Russia, when such a case occurs, a second round of elections between the candidates who had the most votes is held so as to determine the ultimate winner of the elections. These differences between elections in the US and Russia shall be the main focus of this research. In the United States, the system of government is the representative democracy, where representatives are elected by citizens to make government decisions on their behalf at different levels. In Russia, the constitution enshrines electoral laws that govern all election processes. The present study would focus on these differences between the elections in the US and Russia.