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民族地区经济发展制约因素探源──长阳县落后乡镇经济发展制约因素调查 被引量:3
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作者 肖文韬 李俊杰 《中南民族大学学报(人文社会科学版)》 CSSCI 北大核心 2006年第2期69-73,共5页
低下的工业化水平、财政资金与资本短缺、交通不便、低下的受教育程度和人力资本积累、低下的农民经济和政治组织化程度、恶劣的自然条件共同制约了长阳落后乡镇的经济发展。为了促进民族地区经济发展,长阳需要加强制度和组织创新,加快... 低下的工业化水平、财政资金与资本短缺、交通不便、低下的受教育程度和人力资本积累、低下的农民经济和政治组织化程度、恶劣的自然条件共同制约了长阳落后乡镇的经济发展。为了促进民族地区经济发展,长阳需要加强制度和组织创新,加快工业经济发展,改善交通条件与移民建镇和向县内外转移输出劳动力相结合,注重发挥示范效应的作用;进一步开发优势资源,发展壮大特色优势产业。 展开更多
关键词 制约因素 人力资本 工业化 制度和组织创新 交通速输
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An Apparatus Design for the Vehicle Control Scheme in Personal Rapid Transit System
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作者 Jun-Ho Lee 《Journal of Mechanics Engineering and Automation》 2013年第5期325-333,共9页
A new transportation technology known as personal rapid transit (PRT) is being developed by multiple different companies around the world, and one system is under commercial operations in the United Kingdom. Each de... A new transportation technology known as personal rapid transit (PRT) is being developed by multiple different companies around the world, and one system is under commercial operations in the United Kingdom. Each design is different, but they all share a need to operate many automated transit vehicles at very close headways. Safe operation will require a level of control an order of magnitude above any current transit system. As a result, new techniques will be needed for the development and testing of the mechanical and control systems. In this paper an apparatus for developing and testing a PRT vehicle control scheme is demonstrated. This system is composed of independent modules that represent virtual vehicles, a central control system, a man-machine interface and a monitoring device. It can be used to implement and to evaluate the designed vehicle control algorithm. The vehicle control algorithm is designed and simulated in a combined simulation platform that consists of Matlab/Simulink and Labview Simulation Interface Toolkit. Simple operational scenarios are proposed for the testing of the proposed vehicle control apparatus. 展开更多
关键词 Personal rapid transit vehicle control scheme virtual vehicles safe operation headway.
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