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输电线路动态增容技术及其扩能应用研究 被引量:2
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作者 杜永平 张永 《电气应用》 北大核心 2009年第19期28-32,共5页
介绍了输电线路动态增容技术的理论依据和技术实现过程,并就其实现的主要功能和在宿州电网中的扩能应用进行了论述。该系统的投运解决了原有输电线路动态增容问题,是区别于传统扩能方式的又一种新型扩能研究与应用方法,具有良好的推广... 介绍了输电线路动态增容技术的理论依据和技术实现过程,并就其实现的主要功能和在宿州电网中的扩能应用进行了论述。该系统的投运解决了原有输电线路动态增容问题,是区别于传统扩能方式的又一种新型扩能研究与应用方法,具有良好的推广应用价值。 展开更多
关键词 输忠线路 动态增容理论 监测分析系统 扩能应用
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Project Teaching and Practice in College English Teaching
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作者 Haili LI 《International Journal of Technology Management》 2015年第6期128-130,共3页
At present, a new teaching model - Project Approach rises in English education. Project teaching is a student-centered, inquiry-centered practice, with project activities centered learning model. Project teaching stud... At present, a new teaching model - Project Approach rises in English education. Project teaching is a student-centered, inquiry-centered practice, with project activities centered learning model. Project teaching students focus on learning strategies to help students become independent learners, to improve students' motivation to help students learn practical ability, communication skills, collaboration skills, creative thinking skills and the ability to solve practical problems. Project-based learning in the late 1990s was introduced in China. Within ten years, research project studying abroad connotation, significance and theoretical foundation, extension are applied research to classroom practice. However, most of the research object of the project is teaching primary and secondary students, higher education, adult education and general higher education students in science and engineering students. Research related to the field of English teaching is not much; the theory is applied to the case of teaching practice rarely. Therefore, this article introduced the project teaching college English classroom, through the implementation of the teaching aims to stimulate the enthusiasm of the students, so that students learn more explicit goals, enhance self- confidence and motivation to learn, to develop their creativity, initiative and independent learning and the purpose of learning ability. 展开更多
关键词 Project Teaching College English Teaching EXPLORATION PRACTICE
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Performance evaluation of a micro turbo-expander for application in low-temperature solar electricity generation 被引量:3
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作者 Gang PEI Yun-zhu LI +1 位作者 Jing LI Jie JI 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2011年第3期207-213,共7页
A micro turbo-expander capable of high working speed was specially manufactured for use in an organic Rankine cycle (ORC).A series of tests were executed to examine the performance of the machine.In the experiment,the... A micro turbo-expander capable of high working speed was specially manufactured for use in an organic Rankine cycle (ORC).A series of tests were executed to examine the performance of the machine.In the experiment,the machine was tested under different inlet pressure conditions (0.2-0.5 MPa).Data such as the compressed air pressure,temperatures of the inlet and the outlet,rotational speed,and electric power generation were analyzed to discover underlying relationships.During the test,the rotational speed of the machine reached as high as 54 000 r/min,the peak value of the temperature drop between the inlet and the outlet reached 42 ℃,the maximum electric power generated by the motor-generator attached to the machine reached 630 W,and the efficiency of the machine reached 0.43. 展开更多
关键词 Turbo-expander SOLAR LOW-TEMPERATURE Performance evaluation
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