ACS124: Modelling‚ analysis and control by J A Rossiter Tutorial sheet outline solutions TUTORIAL ANSWERS 1 Units in Modelling a) The lightest mass is 20 g. b) The shortest distance is 4.2 yards. c) The largest area is largest 8.7 ft2. d) The greatest volume is greatest 2 m3. e) The highest temperature is 300K. f) The smallest pressure is 7.8 bar. g) The smallest power is 5000 Btu/hr. Note: 1 slug = 37.17 lb‚ 1 Btu/s = 778 ft-lbf/s & 1 ft-lbf/s = 1.356 x 10-3 kW 1 Models can be
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Abstract In this assignment‚ lead compensator is implemented to reduce the percentage of peak overshot to less than 5% and the settling time to 2 second with 2% accuracy. First of all‚ to implement lead compensators into a circuit‚ a pole–zero pair is introduced into the open loop transfer function. Lead compensator is a component in a control system that improves an undesirable frequency response in a feedback and control system. Besides that‚ it also provides phase lead in its frequency response
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One thing that uses magnetic fields is the electric motor‚ which is used in many household appliances‚ such as electric fans‚ microwave ovens‚ and other small appliances. In this instance the electric motor has an electric current‚ giving it also this magnetic field. An electric motor converts electricity into mechanical motion. Most electric motors work by electromagnetism‚ but motors based on electrostatic forces also exist. The overarching concept is that a force is generated when a current-carrying
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DC Generators and Motors Course No: E04-008 Credit: 4 PDH A. Bhatia Continuing Education and Development‚ Inc. 9 Greyridge Farm Court Stony Point‚ NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com CHAPTER 1 DIRECT CURRENT GENERATORS LEARNING OBJECTIVES Upon completion of the chapter you will be able to: 1. State the principle by which generators convert mechanical energy to electrical energy. 2. State the rule to be applied when you determine the direction of induced
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B io Factsheet September 2000 Number 76 The Eukaryotic cell cycle and Mitosis This Factsheet covers the relevant AS syllabus content of the major examining boards. By studying this factsheet the candidate will gain a knowledge and understanding of: • the different phases of the eukaryotic cell cycle (a eukaryotic cell has membrane bound organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different
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Gina Equihua Professor Benzel December 15‚ 2015 Analysis of Jackson Pollock When thinking about an artist and their methods making some form of impact on the art world‚ there leaves little opportunity for such an artist to do so when they can be found in similar method pools. It is often repetitive techniques of an upright easel and oil paint that these artists we are familiar with use. There really is not anything profound that makes them stand out as they ought to‚ other than movements and historical
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4.3 Theoretical genetics 4.3.1 Define genotype‚ phenotype‚ dominant allele‚ recessive allele‚ co-dominant alleles‚ locus‚ homozygous‚ heterozygous‚ carrier and test cross * Genotype- the alleles of an organism * Phenotype- the characteristics of an organism * Dominant allele- an allele that has the same effect on the phenotype whether it is present in the homozygous or heterozygous state * Recessive allele- an allele that only has an effect on the phenotype when present in the
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HVDC TRANSMISSION H-HIGH V-VOLTAGE D-DIRECT C-CURRENT 1 WHY HVDC ? BULK POWER TRANSMISSION WITHLOWER LINE LOSSES AS NO REACTIVE POWER TRANSFER TAKES PLACE CONNECT TWO ASYNCHRONOUS SYSTEM. PROVIDES SYSTEM STABILITY. CONTROLABILITY OF POWER FLOW AT HIGH SPEED. LESS RIGHT OF WAY FOR TRANSMISSION LINES. NO CONTRIBUTION TO SHORT CIRCUIT LEVEL OF THE AC BUS CONNECTED. NO CHARGING CURRENT TO DIMINISH THE USEFUL CAPACITY OF THE LINE. DISTANCE IS NOT LIMITED BY STABILITY POINT OF VIEW. 2 BREAKEVEN
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natural predators‚ only humans. The paradigm has changed; climate change has caught up with the ecosystem that polar bears depend on to stay alive. Polar bears belong to the genus: Ursus and species: Ursus Maritimus and live primarily in the North Pole (Polar Bears‚ Polar Bear Pictures‚ Polar Bear
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where Gross teaches as a history professor‚ and Random House‚ Fear: Anti-Semitism in Poland After Auschwitz was engulfed by controversy. The historian’s scholarly work did not censor nor glorify the brutality endured by the Jews at the hands of the Poles. Instead‚ Gross incorporated various testimonies‚ primary documents and secondary scholars to exemplify the present of anti-semitism in Poland after the collapse of Nazi Germany. Fear: Anti-Semitism in Poland After Auschwitz gained critical acclaimed
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