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您的检索式：作者名="Helan Cheng"
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| 1 | Agent-based modeling approach for evaluating underground logistics system benefits and long-term development in megacities显示文摘Mobility,pollution,and other barriers against sustainable goods movement are pushing local administrators to seek innovations in urban transportation infrastructure.The urban underground logistics system(ULS)has been recognized as a prospective alternative to realize large-scale automated freight distribution within and around megacities.This paper proposes an integrated approach combing system dynamics and agent-based modeling to evaluate the long-term development and operating status of a city-wide ULS project.The project boundaries regarding underground network expansion,stakeholders’attributes,and social-environmental benefit metrics were structured as eight highly-interacted agent modules.Critical decision variables of agents in terms of supply-demand equilibrium,investment plan,pricing-to-market and willingness-to-pay were incorporated into three formulized subsystem models.From empirical perspective,the urban territory of Beijing,China,was taken as a case to simulate the development footprints of ULS project under different funding options and market acceptance degrees.Results show that ULS has significant competence with respect to service capacity and profitability,while enabling billions of dollars of external cost-saving annually.Moreover,the comprehensive performance of ULS project regarding economic incomes,benefits,market demand,and construction schedule can reach satisfactory trade-offs through adaptively adjusting the funding policies,incentives and pricing portfolios during project development. | Wanjie Hu Jianjun Dong Jingfeng Yuan Rui Ren ZHIlong Chen Helan Cheng | 2022 | Journal of Management Science and Engineering2022，7，2： | 1 |
| 2 | Discussions on the Path of Precise Poverty Alleviation in Dongxiang County显示文摘By means of questionnaire survey,household interview,conference exchange and field investigation,this paper makes a detailed investigation on the development status and existing problems of industry poverty alleviation and science and technology poverty alleviation in Dongxiang County. This paper puts forward the precise poverty alleviation path of Dongxiang County from the aspects of industry poverty alleviation,science and technology poverty alleviation,education poverty alleviation,poverty alleviation through ecology,relocation poverty alleviation and so on. | Dehua QIAO Chungui HE Xiaoli DOU Min WANG Weidong CHENG Fu CHEN Zhenfu HE Jie HUANG Helan BAI Jinhui LIU Haiquan PU | 2019 | Asian Agricultural Research2019，11，3： | 0 |
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