Tatur T.A. Fundamentals of the theory of electrical circuits-Татур Т.А. Основы теории электрических цепей

 Tutorial. M.:  1980. - 271 p. The book consists of two parts: linear electrical circuits and non-linear electrical circuits. Methods of analysis and synthesis, as a rule, are accompanied by calculation algorithms and illustrative examples. For clarity, the material is presented mainly in the form of tables. Designed for students of electrical engineering specialties of universities.

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В.А. Матвиенко ОСНОВЫ ТЕОРИИ ЦЕПЕЙ Учебное пособие-V.A. Matvienko FUNDAMENTOS DA TEORIA DOS CIRCUITOS Tutorial

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A Study on the Economic Impacts of Fuel Cell Bus Development and the Importance of Fuel Cell Bus Supply Expansion Policy -By-Hyun Seok Park Graduate School of Management of Technology Pukyong National University

 

A Study on the Economic Impacts of Fuel Cell Bus Development and the Importance of Fuel Cell Bus Supply Expansion Policy Hyun Seok Park Graduate School of Management of Technology Pukyong National University 

Abstract

 The transition from "Carbon Economy" to "Hydrogen Economy" heralds an innovative change worldwide. The hydrogen economy refers to an economic industrial structure that uses hydrogen as a major energy source. Korea has also announced a roadmap to vitalize the hydrogen economy to take the lead in these changes. Korea plans to build an industrial ecosystem that can lead the global hydrogen economy with its strengths of "Fuel Cell Electric Vehicles" and "Fuel Cells" as the two pillars. Examining the degree of social acceptance of this new innovation, the goal of supplying fuel cell electric vehicles, it is estimated that it is in the process of moving beyond early adopters to early majorities. In order for the hydrogen economy to vitalize, it must pass ‘The Chasm’, a discontinuous surface of social acceptance, and a plan is needed for it. This paper attempted to derive policy implications necessary for vitalizing the hydrogen economy. What is particularly noteworthy is that the development of fuel cell buses and the supply of fuel cell buses contribute greatly to the vitalization of the hydrogen economy. Therefore, the purpose of this study is to present the economic impact of fuel cell bus development and to show the priority among the policies supplying fuel cell bus. As a research method, an input-output analysis was performed to present the economic impact, and a analytic hierarchy process was performed to show the priority among the policies supplying fuel cell bus. This study by input-output analysis redefines the fuel cell bus industry based on the 2018 input-output table and calculates the production, value-added, and employment induction effects caused by exogenous specification and analyzes the forward and backward linkage effects. According to the analysis results, the production induction effect caused by the fuel cell bus is 0.704, the value-added induction effect is 0.267, and the employment induction effect is estimated as 2.944 people/billion won. Moreover, out of the total 34 industries, the forward linkage effect is ranked 17th and the backward linkage effect is ranked 13th, which is analyzed as an industry with a strong intermediate property in both the forward and backward. This study by analytic hierarchy process expressed the support policy for the distribution of fuel cell buses as an AHP hierarchical diagram. And, the survey was conducted on busan metrobus company. For analysis, 'Expert Choice 2000', a specialized program, was used. As a result of the analysis, 45.8% of "supporting the supply of hydrogen charging stations", 34.0% of "supporting the supply of fuel cell buses", 12.5% of "technology advancement", and 7.7% of "institutional support". It can be seen that busan metrobus company evaluated "supporting the supply of hydrogen charging stations" as the most important. The results of this paper are expected to serve as policy guidelines for the expansion of the fuel cell bus industry, and the expansion of fuel cell bus supply is expected to serve as an important trigger for revitalizing the hydrogen economy.

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Fundamentals of the theory of circuits Authors: G.V. Zeveke, P.A. Ionkin, A.V. Netushil, S.V. Strakhov.-Основы теории цепей. Авторы: Г.В. Зевеке, П.А. Ионкин, А.В. Нетушил, С.В. Страхов.

 Fundamentals of the theory of circuits Authors: G.V. Zeveke, P.A. Ionkin, A.V. Netushil, S.V. Strakhov. 5th edition, revised. (Moscow: Energoatomizdat, 1989)

Fundamentals of the theory of circuits Authors: G.V. Zeveke, P.A. Ionkin, A.V. Netushil, S.V. Strakhov

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Analysis of dynamic performance and compatibility of electric bus based on real-road data by Yu, Tae Hyun- Major of Mechatronics Engineering Department of Mechatronics Engineering Graduate School Korea University of Technology and Education

Analysis of dynamic performance and compatibility of electric bus based on real-road data BY Yu, Tae hyun Major of Mechatronics Engineering Department of Mechatronics Engineering Graduate School Korea University of Technology and Education 

ABSTRACT

 Many countries around the world are regulating the exhaust gas emission of internal combustion engine vehicles. Along with the spread of support policies for the introduction of eco-friendly vehicles, they try to replace conventional internal combustion engine buses with electric buses in large cities. Buses using electricity have a simpler structure and fewer parts than an internal combustion engine, so they are highly reliable and require fewer maintenance elements. In addition, they do not emit pollutants because they use electricity as power. They have low noise and vibration, so they are easy to apply to big city bus routes. In addition, energy price is cheaper than diesel or CNG, and energy consumption efficiency is also high. However, it takes long to charge the battery, and the replacement cycle is relatively short as well as it is expensive. Accordingly, studies on the application of electric buses to bus routes in large cities are being continuously studied. In this paper, it was analyzed whether large electric buses are suitable for application to bus routes in large cities with congested traffic. To this end, a vehicle simulation model was established based on the component parts and vehicle specifications of the electric bus. Then, the basic power performance of the applied electric bus was analyzed through the established vehicle simulation model. In addition, the actual vehicle correlation verification of the vehicle simulation model established through the chassis dynamometer actual vehicle test was performed. For the analysis of the suitability of electric buses for bus route operation in large cities, a vehicle simulation scenario was established based on the actual road data of the Bangkok in Thailand. Through the verified vehicle simulation model, the suitability of operation of the Bangkok city route in Thailand was verified, focusing on the electric energy consumption efficiency of the electric bus and the mileage per charge. It is expected that the simulation model for verifying the applicability of the electric bus in this paper will be very useful in examining the applicability of the electric bus on the bus routes in large cities.

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