Electronic media are ubiquitous in most of the developed world. As of 2005‚ there are reports of satellite receivers being present in some of the most remote and inaccessible regions of China. Electronic media devices have found their way into all parts of modern life. The term is relevant to media ecology for studying its impact compared to printed media and broadening the scope of understanding media beyond a simplistic aspect of media such as one delivery platform (e.g. the World Wide Web) aside
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Xerox‚ during this time‚ was a power house of innovation‚ many aspects of the modern computer; the mouse‚ laser printers‚ Ethernet‚ and color graphics were all founded. In 1974 an employee of Xerox‚ Nicholas K. Sheridon invented the basis for modern electronic paper technology‚ the Gyricon. The Gyricon has many of the same properties as paper; it is flexible‚ contains an image‚ but it can also by erased and rewritten thousands of times. In the nineties‚ as the personal computer became more popular more
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Electronic cigarettes‚ or e-cigarettes‚ have become increasingly popular in recent years. Regular cigarette smoking has been on the decline due to many factors including price‚ health risks‚ and the fact that most public places no longer allow indoor smoking; making it an inconvenience to step outside and light one up. The convenience‚ affordability‚ and health benefits are just a number of reasons the electronic cigarette is rising in popularity. A comparison between e-cigarettes and regular
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Electronic surveillance has changed in many ways since the passing of the USA Patriot Act. Therefore‚ electronic surveillance can be divided into 4 categories; wiretaps‚ tracking devices‚ stored communications and subscriber information‚ and pen registers and trap devices (Hall‚ D. 2105). Before the Patriot Act‚ you would have to have to show very high need to get a warrant for wiretapping‚ kind of like getting a super warrant and this was due to The Wiretap Act and the Title III of the Omnibus
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Electronics Essay Naturally‚ our day to day lives evolve alongside the progression of technology. Some claim that technology has educational benefits‚ yet others believe that technology creates more problems than it diminishes. Although technology allows children to connect to others with ease‚ its negatives still outweigh its positives in the domain of school. Before adapting completely to this new world of technology‚ schools must consider the negative side of technology‚ including its useless
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Samsung Electronics case study The Samsung Electronics Company was the largest conglomerate in South Korea. The total net sales of the Samsung Group were $135 billion in 2004. It has 337 overseas operations in 58 countries. Electronic‚ finance‚ and trade and services were the three core sectors within the Samsung Group. Semiconductor products were classified into two different categories of chips‚ which are memory and logic. To focus on the global memory chip industry
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Power electronics Mid-1 Objective exam 2011 1.When UJT is used for triggering an SCR‚ the wave shape of the voltage obtained from UJT firing circuit is a a) Sine wave (b) saw tooth wave (c)trapezoidal wave (d) Square wave 2. In a thyristor circuit‚ the angle of conduction can be changed by changing (a) anode Voltage (b) Anode Current (c) Forward Current rating (d)gate Current 3. Freewheeling diodes are mainly used for (a) Better utilization factor (b) di/dt protection
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Internal supervisor Examiner (s) 1 ……………………………… 2 ……………………………… ACKNOWLEDGEMENT Survey is an excellent tool for learning and
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SYLLABUS Cambridge IGCSE® Cambridge International Certificate* Chemistry 0620 For examination in June and November 2014 *This syllabus is accredited for use in England‚ Wales and Northern Ireland as a Cambridge International Level 1/Level 2 Certificate. University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to
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BASIC DIODE ELECTRONICS INTRODUCTION TO DIODES The p-n Junction The p-n junction is a homojunction between a p-type and an n-type semiconductor. It acts as a diode‚ which can serve in electronics as a rectifier‚ logic gate‚ voltage regulator (Zener diode)‚ switching or tuner (varactor diode); and in optoelectronics as a light-emitting diode (LED)‚ laser diode‚ photodetector‚ or solar cell. In a relatively simplified view of semiconductor materials‚ we can envision a semiconductor as having two
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