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Integrated Network Design and Demand Forecast for On-Demand Urban Air Mobility Article

Zhiqiang Wu, Yu Zhang

Engineering 2021, Volume 7, Issue 4,   Pages 473-487 doi: 10.1016/j.eng.2020.11.007

Abstract: the optimal locations of vertiports, user allocation to vertiports, and vertiport access- and egress-modechoices while considering the interactions between vertiport locations and potential UAM travel demandA case study based on simulated disaggregate travel demand data of the Tampa Bay area in Florida, USAminimal total generalized cost; however, the modeling structure allows each user to select a better modeThe outcomes of the case study reveal that although the percentage of trips that switched from ground mode

Keywords： Advanced air mobility     Skyport     Travel mode choice     Low-altitude airspace     Unmanned systems    

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On the flexible choice of logistics management mode in enterprises under efficiency uncertainty

Zhang Hongbo,Luo Yixin

Strategic Study of Chinese Academy of Engineering 2008, Volume 10, Issue 9,   Pages 88-91

Abstract: Through setting up model, the enterprises' threshold to transfer to the third party logistics modefrom self-run logistics mode under efficiency uncertainty is obtained with the real option approach.Further, the results shows: the choice of the logistics management model in enterprises are critically

Keywords： flexible choice     the logistics management mode     self-run logistics     third party logistics     real options    

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Understanding network travel time reliability with on-demand ride service data

Xiqun (Michael) CHEN, Xiaowei CHEN, Hongyu ZHENG, Chuqiao CHEN

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 388-398 doi: 10.15302/J-FEM-2017046

Abstract: Travel time reliability is of increasing importance for travelers, shippers, and transportation managersTo better evaluate the urban network-wide travel time reliability, five indices based on the emergingon-demand ride service data are proposed: network free flow time rate (NFFTR), network travel time rateThese indices take into account the probability distribution of the travel time rate (i.e., travel timeof the road network traffic dynamics and day-to-day travel time variations.

Keywords： network travel time reliability     on-demand ride services     travel time rate     OD    

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Appraisal of coastal recreational resources in Qingdao by travel cost method

Jingmei LI , Tieying LIU , Yuanyuan ZHANG , Lei LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 341-347 doi: 10.1007/s11783-009-0038-z

Abstract: This paper serves to appraise the monetary cost of coastal recreational resources in Qingdao using the travelThese questionnaires establish correlation functions that factor in the number of tourists, travel expenseswas used to determine the tourist demand regression curve and to calculate their residual and actual travel

Keywords： coastal recreational resources     travel cost method (TCM)     regression analysis     Qingdao     China    

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Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 265-278 doi: 10.1007/s11465-017-0453-y

Abstract: These parallelograms are serially connected for a large travel range and a high out-of-plane payloadThe stage has a travel range of 4.4 mm× 7.0 mm and a 0.16% area ratio of workspace to the outer

Keywords： mechatronic design     linear compliant positioning stage     large travel range     high out-of-plane payload capacity    

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Mechanized Tunneling in Soft Soils: Choice of Excavation Mode and Application of Soil-Conditioning Additives

Rolf Zumsteg, Lars Langmaack

Engineering 2017, Volume 3, Issue 6,   Pages 863-870 doi: 10.1016/j.eng.2017.11.006

Abstract: Most tunnels in the past were drilled using the slurry mode (SM), in which the application of differentFor drillings with the less common earth pressure balanced mode (EPBM), continuous foam conditioningwith environmental legislation is considered early on in the design and evaluation of the excavation mode

Keywords： Soil conditioning     Earth pressure balanced shield     Slurry shield     Mechanized tunneling    

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Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

Jaffar A. Al-Tawfiq,Ali S. Omrani,Ziad A. Memish

Frontiers of Medicine 2016, Volume 10, Issue 2,   Pages 111-119 doi: 10.1007/s11684-016-0446-y

Abstract: Travel-associated MERS infection remains low.In this review, we summarize the current knowledge about MERS-CoV and highlight travel-related issues

Keywords： coronavirus     MERS     Middle East respiratory syndrome    

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Supersonic Travel Seeks an Encore

Sean O´Neill,

Engineering 2022, Volume 10, Issue 3,   Pages 1-3 doi: 10.1016/j.eng.2022.01.004

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Is servitization of construction the inevitable choice of Internet Plus construction?

Hongwei WANG, Dian LIU

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 229-230 doi: 10.15302/J-FEM-2017104

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Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality

WU Rui, LI Guangyi, ZHANG Zongyi, REN Yulong, HAN Weijian

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 292-298 doi: 10.1007/s11783-007-0049-6

Abstract: commercial vehicles on a large scale, direct use of CNG in a dedicated or bi-fuel vehicle is an economical choice

Keywords： dedicated     primary     economic     alternative     abundant    

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200 km Per Hour一The Best Choice for Beijing - Shanghai Express Railway

Li Yushan

Strategic Study of Chinese Academy of Engineering 2004, Volume 6, Issue 12,   Pages 7-12

Abstract: that the electrified fast-speed wheel/rail system with a speed of 200 km per hour should be the best choice

Keywords： Beijing - Shanghai express railway     optimal choice     maglev     high-speed rail system     fast-speed rail system    

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The Realistic Pattern and Path Choice of the Development of Agricultural Software Industry

Ma Chen, Li Jin, Zhang Qian, Feng Xian, Jie Xiaojing

Strategic Study of Chinese Academy of Engineering 2021, Volume 23, Issue 4,   Pages 19-29 doi: 10.15302/J-SSCAE-2021.04.003

Abstract:

As the integration of information technology and agricultural development accelerates, the agricultural software industry has emerged to support the development of smart agriculture. In this article, we first analyze the development status of and challenges faced by China’s agricultural software industry by analyzing the development strategies of the industry in China and abroad and using literature review and survey data. Subsequently, we propose the strategic goals, major engineering projects, and policy measures for the development of China’s agricultural software industry. China’s agricultural software industry has a large gap with other countries in terms of technology development and promotion, enterprise operation, and user accumulation. The major challenges include difficulty in development, weak innovation capabilities, low return on investment, and insufficient protection of intellectual property rights, restricting the growth of China’s agricultural software industry. China should regard the software development of agricultural technologies as the main line and focus on strengthening the innovative capabilities of its agricultural software industry by 2035. The major engineering projects we proposed involve agricultural enabling software and platform development, precision agriculture management software application promotion, agricultural software industry cluster establishment, and agricultural software enterprise cultivation. Furthermore, China should improve its policy support system, strengthen the overall coordination mechanism, optimize the discipline system, and strengthen talent training for the agricultural software industry.

Keywords： agricultural software industry     feature classification     current pattern     path choice     suggestions for    

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Assessing the Effect of Global Travel and Contact Restrictions on Mitigating the COVID-19 Pandemic Article

Shengjie Lai, Nick W. Ruktanonchai, Alessandra Carioli, Corrine W. Ruktanonchai, Jessica R. Floyd, Olivia Prosper, Chi Zhang, Xiangjun Du, Weizhong Yang, Andrew J Tatem

Engineering 2021, Volume 7, Issue 7,   Pages 914-923 doi: 10.1016/j.eng.2021.03.017

Abstract:

Travel restrictions and physical distancing have been implemented across the world to mitigate thewave of the pandemic in 2020, we built a metapopulation epidemiological model to measure the effect of travel

Keywords： COVID-19     Pandemic     Population mobility     Travel restriction     Physical distancing    

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Construction of Long Distance Oil and Gas Transmitting Pipeline——Setting of Welding Procedure and Making a Choice

Guo Haiyun,Li Huan,Li Guohua,Hu Lianhai

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 12,   Pages 76-79

Abstract: Setting of welding procedure and making choice of welding equipment involve a lot of techniques.

Keywords： construction of oil and gas pipeline     welding procedure     welding equipment     choice    

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.The sliding mode controller is used to generate reference voltages in stationary frame and give themThe second aim of this paper is to design a sliding mode speed/flux observer which can improve the control

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)     sliding mode observer (SMO)     dS1104    

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Title Author Date Type Operation

Integrated Network Design and Demand Forecast for On-Demand Urban Air Mobility

Zhiqiang Wu, Yu Zhang

Journal Article

On the flexible choice of logistics management mode in enterprises under efficiency uncertainty

Zhang Hongbo,Luo Yixin

Journal Article

Understanding network travel time reliability with on-demand ride service data

Xiqun (Michael) CHEN, Xiaowei CHEN, Hongyu ZHENG, Chuqiao CHEN

Journal Article

Appraisal of coastal recreational resources in Qingdao by travel cost method

Jingmei LI , Tieying LIU , Yuanyuan ZHANG , Lei LI ,

Journal Article

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Journal Article

Mechanized Tunneling in Soft Soils: Choice of Excavation Mode and Application of Soil-Conditioning Additives

Rolf Zumsteg, Lars Langmaack

Journal Article

Middle East respiratory syndrome coronavirus: current situation and travel-associated concerns

Jaffar A. Al-Tawfiq,Ali S. Omrani,Ziad A. Memish

Journal Article

Supersonic Travel Seeks an Encore

Sean O´Neill,

Journal Article

Is servitization of construction the inevitable choice of Internet Plus construction?

Hongwei WANG, Dian LIU

Journal Article

Life cycle analysis and choice of natural gas-based automotive alternative fuels in Chongqing Municipality

WU Rui, LI Guangyi, ZHANG Zongyi, REN Yulong, HAN Weijian

Journal Article

200 km Per Hour一The Best Choice for Beijing - Shanghai Express Railway

Li Yushan

Journal Article

The Realistic Pattern and Path Choice of the Development of Agricultural Software Industry

Ma Chen, Li Jin, Zhang Qian, Feng Xian, Jie Xiaojing

Journal Article

Assessing the Effect of Global Travel and Contact Restrictions on Mitigating the COVID-19 Pandemic

Shengjie Lai, Nick W. Ruktanonchai, Alessandra Carioli, Corrine W. Ruktanonchai, Jessica R. Floyd, Olivia Prosper, Chi Zhang, Xiangjun Du, Weizhong Yang, Andrew J Tatem

Journal Article

Construction of Long Distance Oil and Gas Transmitting Pipeline——Setting of Welding Procedure and Making a Choice

Guo Haiyun,Li Huan,Li Guohua,Hu Lianhai

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article