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老龄化背景下城轨换乘站客流组织仿真分析 被引量:3
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作者 段力伟 张开萍 《科学技术与工程》 北大核心 2023年第5期2140-2146,共7页
针对人口老龄化背景下的城轨换乘站客流组织问题,从影响因素分析出发,量化老年乘客生理特征对乘客行动力影响的外在表现,并运用社会力模型描述换乘站内行人运动。借助AnyLogic仿真软件,以重庆市某换乘站为实验对象构建地铁换乘站仿真模... 针对人口老龄化背景下的城轨换乘站客流组织问题,从影响因素分析出发,量化老年乘客生理特征对乘客行动力影响的外在表现,并运用社会力模型描述换乘站内行人运动。借助AnyLogic仿真软件,以重庆市某换乘站为实验对象构建地铁换乘站仿真模型。通过设计多场景仿真实验,结果发现老年乘客比例对站内客流速度、进站时间、换乘时间都有明显影响,尤其是在站内客流瓶颈处和高差变化处的影响更为明显。最后,对适老背景下城轨车站设计和运营提出针对性建议。 展开更多
关键词 换乘站 人口老龄化 ANYLOGIC 客流组织
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Discussion on Question of Importing Large-scale Equipment from Other Countries by Installment
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作者 duan li-wei LU Zhong -hai +4 位作者 SHANG Guo-xin QI liang-xin WANG Ming -xue SUN Feng-lei(Intrument Sechon, Zhujinag Hospital, First Military Surgeon University, Guangzhou, 510282, China Education Guaranteeing Department, First Surgeon University, Guangzhou, 5 《International Journal of Plant Engineering and Management》 1999年第2期469-474,共6页
Successful cases have not been rare, that is to import funds accelerate hospital building by means of raising funds, borrowing, renting, jointing, and so on. The same characteristics is raising money at first and then... Successful cases have not been rare, that is to import funds accelerate hospital building by means of raising funds, borrowing, renting, jointing, and so on. The same characteristics is raising money at first and then working, and the investor will earn high proportional benefits. 'Importing funds' has solved some practical problems, but it also causes some negative effects, such as difficulty in management, being difficult to work, inequitable benefit allocation, little benefits earned by the hospital, a big venture, and so on.By means of installment, the hospital has imported much equipment, such as very expensive Magnetic Resonating Instrument (MRI), spiral CT, straight accelerator, ECT and so on. Connecting with practice, the authors has analyzed objectively the profits and the harm of importing equipment by installment. There are four reasons for applying installment: firstly, it solves the problem of shortage of funds of the hospital; secondly, it efficiently avoids the inconvenience resulted from the management by both jointing sides together; thirdly, it raises the investing earnings of the hospital; finally, it is advantages which are as follows. Importing large-scale foreign equipment from abroad by installment has not been popular in the native hospital, and there are not relatively regular and ripe rules to be followed. Moreover, because effective institution is required to act as an economic guarantor, an extra content of work will, be added to practice.The authors prefer that attentions should be paid to the five aspects in importing equipment by means of installment; selecting the suitable importing project, selecting a favorable cooperating partner and deciding suitable cooperating items; selecting an excellent company or institution to guarantee for the hospital, and grasping the practice of the contract. 展开更多
关键词 HOSPITAL importing equipment PURCHASING INSTALLMENT
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