It is very obvious from the comments posted in this thread that the people driving the use of the RaspberryPi as a PLC training tool have not conducted any professional‚ electrical and electronic engineering research into the design criteria required for an educational PLC or are prepared to acknowledge the legally required European Union safety compliance to IEC61508 and IEC 611313. A PLC’s functional criterion is an industrial control device used to automate electrically driven machinery
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NEHRU’S ‘THE DISCOVERY OF INDIA’ A Brief Study JAGDISH V. DAVE M. N. College‚ Visnagar (NG)‚ Gujarat The Discovery of India is‚ in fact‚ the discovery or Nehru’s rich and graceful personality. It gives us glimpses into the manifold aspects of this great man symbolised for many years the youth of our rejuvenated race awakened after long slumber. What was the essential self of Pandit Nehru? He was a politician by accident as he himself confessed‚ a thinker and a humanist by
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Technological advances have affected us more that we realize. These changes can be dramatic is some cases or not as evident in others. Technological advances in the home work and in relationships‚ is binding the three into one. Advances in technology allow us to get more done for the better of our society‚ life and work. How can technology around the home get any better? From refrigerators that tell when its time to restock your favorite beverage‚ to ovens that cook and then cool your meal if
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Electrical & Electronics Engineers Project Outline Introduction A. The Basis of my future career. History & Nature of Work (Duties) A. Electrical & Electronics beginning and effects on daily life. B. What does Electrical & Electronics Engineers do? Preparation and Training A. Basic courses for both electrical and electronics. 1. College Programs-Computer architecture‚ switching theory‚ and computer design. 2. Electrical Programs- Mathematics and science more than technology and
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Scientific Discovery of Plasma. Plasma‚ the "Fourth State of Matter‚" was first identified in a Crookes tube‚ an experimental electrical discharge tube in which air is ionized by the application of a high voltage through a voltage coil‚ and it was described by Sir William Crookes‚ an English physicist‚ in 1879. It was first called "radiant matter”. However‚ Dr. Irving Langmuir‚ an American chemist and physicist‚ applied the word "Plasma" to ionized gas‚ in 1929. Plasma just happens to be the most
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The ‘Hand Book’ covers the Code of Practice in Protection Circuitry including standard lead and device numbers‚ mode of connections at terminal strips‚ colour codes in multicore cables‚ Dos and Donts in execution. Also principles of various protective relays and schemes including special protection schemes like differential‚ restricted‚ directional and distance relays are explained with sketches. The norms of protection of generators‚ transformers‚ lines & Capacitor Banks are also given.
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Topic: Personal Opinions – Herbal Medicine Before western and modern medicine‚ herbal medicine was used to cure almost every kind of sickness in a natural way. Herbal medicine enhances the biological natural healing ability of our body‚ so that the recovery process gets accelerated and the body is able to maintain an ideal internal environment that is crucial for such recovery. A lot of herbs work by stimulating various glands so that appropriate hormones are activated. These hormones carry the
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Wire Symbols Electrical Wire Conductor of electrical current Connected Wires Connected crossing Not Connected Wires Wires are not connected Switch Symbols and Relay Symbols SPST Toggle Switch Disconnects current when open SPDT Toggle Switch Selects between two connections Pushbutton Switch (N.O) Momentary switch - normally open Pushbutton Switch (N.C) Momentary switch - normally closed DIP Switch DIP switch is used for onboard configuration SPST Relay Relay open
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Happened 11 2. A History of Creation 58 3. The Rise of Science 85 4. The Strange Career of Modern Cosmology 113 5. The Spears of Odin 169 6. The Plasma Universe 214 Part Two IMPLICATIONS 281 7. The Endless Flow of Time 283 8. Matter 328 9. Infinite in Time and Space 382 10. Cosmos and Society 405 Appendix 425 Bibliography 431 Index 441 XIII PREFACE TO THE VINTAGE EDITION Four hundred years ago Galileo broke the bonds that had entangled science with religion. Defying his fellow scientists’ near
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Composition I 19 Feb 2008 Advances in Medical Technology Medical Technology has developed to a great extent over the course of many centuries. Since the days of Hippocrates‚ considered the “Father of Medicine”‚ advances in the medical field have brought us into a brave new world. With the advent and application of modern technology‚ the medical field seems to have evolved more in the last 10-20 yrs than in the previous 1000 years. Recently‚ new ground has been broken throughout the field
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