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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 thetravel cost method (TCM), which is typically used in developed countries.These 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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A Flexible Multi-Layer Map Model Designed for Lane-Level Route Planning in Autonomous Vehicles Article

Kun Jiang, Diange Yang, Chaoran Liu, Tao Zhang, Zhongyang Xiao

Engineering 2019, Volume 5, Issue 2,   Pages 305-318 doi: 10.1016/j.eng.2018.11.032

Abstract: navigation systems to more applications, two fundamental problems must be resolved: the lane-level map modelThe current limitation of the lane-level map model is not its accuracy but its flexibility; this studyproposes a novel seven-layer map structure, called as Tsinghua map model, which is able to support autonomousIn addition, we model the travel costs allocated for lane-level road networks by analyzing vehicle maneuvers

Keywords： Lane-level     Route planning     Tsinghua map model     Travel cost model    

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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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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 mechatronic model is established by matrix structural analysis for structural modeling and by KirchhoffThe analytical model of the stage is confirmed by experiments.The 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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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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Future urban transport management

Frontiers of Engineering Management   Pages 534-539 doi: 10.1007/s42524-023-0255-3

Abstract: The incorporation of disruptive innovations into the transportation industry will inevitably cause major upheavals in the transportation sector. However, existing research lacks systematic theories and methodologies to represent the underlying characteristics of future urban transport systems. Furthermore, emerging modes in urban mobility have not been sufficiently studied. The National Natural Science Foundation of China (NSFC) officially approved the Basic Science Center project titled “Future Urban Transport Management” in 2022. The project members include leading scientists and engineers from Beijing Jiaotong University, Beihang University, and Beijing Transport Institute. Based on a wide range of previous projects by the consortium on urban mobility and sustainable cities, this project will encompass transdisciplinary and interdisciplinary research to explore critical issues affecting future urban traffic management. It aims to develop fundamental theories and methods based on social and technological developments in the near future and explores innovative solutions to implement alongside these emerging developments in urban mobility.

Keywords： future urban transport management     travel behavior characteristics     transportation operations     transportation    

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Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavementpreservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservationtraffic loading and the initial IRI value significantly affects life extension and the benefit of agency costThe benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency costtiming calculated based on VOC is always earlier than the optimal timing calculated based on agency cost

Keywords： pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

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Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Frontiers of Medicine 2012, Volume 6, Issue 3,   Pages 311-316 doi: 10.1007/s11684-012-0205-7

Abstract:

In the current study, we assessed and evaluated the costs and benefits of three popular methods of general anesthesia practiced in our department for gynecological laparoscopic surgery in recent years. Sixty adult female patients who underwent elective gynecological laparoscopic surgery under general anesthesia were randomly divided into three groups: group V, group I and group C. In group V, anesthesia was induced intravenously with midazolam, remifentanil, propofol and vecuronium, and maintained with continuous infusion of propofol and remifentanil. In group I, anesthesia was intravenously induced with midazolam, fentanyl, propofol and vecuronium, and maintained with inhaled isoflurane and intravenous bonus of fentanyl. In group C, anesthesia was induced as in group I, but maintained with isoflurane inhalation combined with propofol-remifentanil infusion. All patients received vecuronium for muscle relaxation. Perioperative incidences of complications and total anesthesia costs for patients in all groups were recorded. In addition, postoperative satisfaction of the patients was also noted, and similar outcomes of the satisfaction were reported in all 60 patients. Although there was no statistical significance among groups, the incidence of postoperative nausea and vomiting were higher in group C, and the rates of shivering and the needs for analgesics were higher in group V. Anesthesia costs in group I were the lowest. Therefore, it is concluded that the costs of anesthesia induced with midazolam, fentanyl, propofol, vecuronium, and maintained with isoflurane, fentanyl and vecuronium are cheapest, and there is no significant difference in patients’ satisfaction and safety among the three above-mentioned methods of anesthesia in our department.

Keywords： general anesthesia     economics     cost    

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Research on Model of the Shortest Time Path and Transport Cost in Multimodal Transportation

Wei Zhong,Shen Jinsheng,Huang Ailing,Zhang Zhiwen,Shi Dinghuan

Strategic Study of CAE 2006, Volume 8, Issue 8,   Pages 61-64

Abstract: time and possible transport delay at node in multimodal transportation networks, the shortest time modelof path is presented, and then the transport cost of the path in multimodal transportation network is

Keywords： multimodal transportation     the shortest time path     transport cost    

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Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 412-427 doi: 10.1007/s11708-023-0879-3

Abstract: storage technology has the potential to reduce CO2 emissions, but its carbon footprint and costNext, the levelized cost of direct-coal-to-liquid is 648–1027 $/t of oil, whereas that of indirect-coal-to-liquidWhen coupled with the carbon capture utilization and storage technology, the levelized cost of direct-coal-to-liquidtransportation distance has the greatest impact on carbon footprint, while coal price and initial investment costsignificantly affect the levelized cost of coal-to-liquid.

Keywords： coal-to-liquid     carbon capture     utilization and storage (CCUS)     carbon footprint     levelized cost of liquid    

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Exploration and practice on applied professional training model of project cost—A case study of Tianjin

Yin Yilin and Bai Juan

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 114-119

Abstract:

Great-leap-forward development of consulting industry puts forward new demands for project cost professionalsapplication-oriented talents applicable to market demand is the primary task of personnel training of project costBuild a systematic exposition of the construction of application-oriented training model of project costrsquo;s training and construction， designed to provide a reference for application-oriented training modelof project cost.

Keywords： application-oriented talents； project cost； training mode    

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Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Frontiers of Engineering Management 2018, Volume 5, Issue 3,   Pages 357-368 doi: 10.15302/J-FEM-2018022

Abstract: thinking gives a unique opportunity to seek a balance between FPSO technical performance(s), with whole-costfit-for-use design specification options’ that address technical-motion(s), with respective life-cycle costperiods-of-time by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle costbeen performed to generate FPSO motion in six degrees of freedom using SESAM DeepC, while life-cycle costLCCA data has been generated to compare the cost of such different mooring options/hull conditions over

Keywords： FPSO     LCCA     spread/turret-mooring     DeepC     cost     motion     soft-systems    

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Application and Development of Civil Aviation Condition Based Maintenance Decision Optimal Model

Zhang Haijun,Zuo Hongfu,Liang Jian,Rong Xiang

Strategic Study of CAE 2005, Volume 7, Issue 11,   Pages 17-20

Abstract: Maintenance optimal model concentrates the essence of condition based maintenance and plays an importantrole in reducing maintenance cost and raising profit of civil aviation corporation.The paper induced the establishing method of several models, such as Delay Time Model and Shock model, Proportional Hazards Model and Markov decision Model, and analyzed these models’ shortcoming

Keywords： condition based maintenance     maintenance optimal model     decision     cost    

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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 theterritories during the first wave of the pandemic in 2020, we built a metapopulation epidemiological modelto measure the effect of travel and contact restrictions on containing COVID-19 outbreaks across regions

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

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Title Author Date Type Operation

Appraisal of coastal recreational resources in Qingdao by travel cost method

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

Journal Article

A Flexible Multi-Layer Map Model Designed for Lane-Level Route Planning in Autonomous Vehicles

Kun Jiang, Diange Yang, Chaoran Liu, Tao Zhang, Zhongyang Xiao

Journal Article

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

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

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

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

Future urban transport management

Journal Article

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Journal Article

Research on Model of the Shortest Time Path and Transport Cost in Multimodal Transportation

Wei Zhong,Shen Jinsheng,Huang Ailing,Zhang Zhiwen,Shi Dinghuan

Journal Article

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Journal Article

Exploration and practice on applied professional training model of project cost—A case study of Tianjin

Yin Yilin and Bai Juan

Journal Article

Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Journal Article

Application and Development of Civil Aviation Condition Based Maintenance Decision Optimal Model

Zhang Haijun,Zuo Hongfu,Liang Jian,Rong Xiang

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