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Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

《工程管理前沿（英文）》 2015年 第2卷 第4期   页码 378-390 doi: 10.15302/J-FEM-2015061

摘要： As one of the primary business centers of China, Guangzhou has been undergoing rapid growth and expansion. Over the past decade, the Guangzhou Municipality Government has significantly upgraded its transport infrastructure, especially with the highly beneficial expansion of its Subway Mass Rapid Transit (MRT) system. Positive steps have also been taken to continue planning the construction of new roads, a Bus Rapid Transit (BRT) system and other transportation facilities. Further administrative and regulatory measures have also been implemented to control the situation, such as the banning of motorcycles from the central city area and the limitation of new automobile registrations. However, Guangzhou continues to face serious challenges of traffic congestion in and around the city center owing to further intensification of its population with economic growth. The need to ease Guangzhou’s stretched public transportation resources, and at the same time to support the realization of its “Eastward Advance” strategy, presents a unique challenge and opportunity to develop an advanced high-efficiency public transportation modality for Guangzhou, viz. the Group Rapid Transit (GRT) involving the use of automation-guided (driverless) smart-vehicles. This paper outlines the PRT/GRT (PRT: Personal Rapid Transit) smart-vehicle modality and also puts forth a proposal of Guangzhou’s first GRT route as the city’s first dedicated transportation link to the scenic landscape of the Eastern Tourism Zone. This GRT route will help in diffusing the city’s traffic congestion as well as support the effectuation of Guangzhou’s “Eastern Expansion” strategy, supplementing the ongoing expansion of the Guangzhou Municipality’s subway MRT networks.

关键词： public transportation system     innovative city transportation     Subway Mass Rapid Transit (MRT)     Bus Rapid Transit (BRT)     Group Rapid Transit (GRT)     Personal Rapid Transit (PRT)    

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System and prospects of China’s intercity rail transit technology

Ming GONG

《机械工程前沿（英文）》 2018年 第13卷 第2期   页码 323-328 doi: 10.1007/s11465-018-0463-4

摘要：

City clusters and metropolitan areas in China are flourishing in the midst of the deepening urbanization in the country, thereby resulting in the emergence of intercity rail transit. Intercity railways connect mainline and urban railways for an integrated regional transportation system that underpins and leads the development of city clusters and metropolitan areas. This study explores the development mode and service characteristics of intercity rail transit, as well as proposes overviews on this system and prospects of its future technology in China.

关键词： intercity rail transit     city cluster     technical demand     technology system    

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Screening of indicator pharmaceuticals and personal care products in landfill leachates: a case study

《环境科学与工程前沿（英文）》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1716-y

摘要：

● A systematic framework was developed to identify i-PPCPs for landfill leachate.

关键词： Landfill leachates     PPCPs     Indicator     Screening criteria     Source-specificity    

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Coupling analysis of passenger and train flows for a large-scale urban rail transit system

《工程管理前沿（英文）》 2023年 第10卷 第2期   页码 250-261 doi: 10.1007/s42524-021-0180-2

摘要： Coupling analysis of passenger and train flows is an important approach in evaluating and optimizing the operation efficiency of large-scale urban rail transit (URT) systems. This study proposes a passenger–train interaction simulation approach to determine the coupling relationship between passenger and train flows. On the bases of time-varying origin–destination demand, train timetable, and network topology, the proposed approach can restore passenger behaviors in URT systems. Upstream priority, queuing process with first-in-first-serve principle, and capacity constraints are considered in the proposed simulation mechanism. This approach can also obtain each passenger’s complete travel chain, which can be used to analyze (including but not limited to) various indicators discussed in this research to effectively support train schedule optimization and capacity evaluation for urban rail managers. Lastly, the proposed model and its potential application are demonstrated via numerical experiments using real-world data from the Beijing URT system (i.e., rail network with the world’s highest passenger ridership).

关键词： urban rail transit     coupling analysis     passenger–train interaction     large-scale simulation    

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Study of Sustainable Urban Rail Transit Development Model in China

Wen-wu Yang

《工程管理前沿（英文）》 2014年 第1卷 第2期   页码 195-201 doi: 10.15302/J-FEM-2014026

摘要： As the grand urbanization rapidly progresses in China, Chinese government launches a magnificent urban rail transit development plan as the key part of the preferential public transportation strategy. It is very necessary to establish a viable public private partnership model for urban rail construction. The philosophy of transit-oriented-development （TOD） is discussed in this study by reviewing Hong Kong Railway+ Property development model which is proved very successful in mass transit rail development in Hong Kong. This paper examines current practice of urban transit as of conventional public transport infrastructure in China and looks into ways of getting over the bureaucratic and technologic hurdles in order to generating synergy value and opportunity of rail oriented urban development. Taking the TOD and public-private-partnership (PPP) study of Shenzhen metro line 6 as an example, the sustainable urban rail development model is introduced and elaborated. It concludes that the sustainable urban rail transit shall be able to energize the great potential of rail and urban development at macro, meso and micro levels, through effective integration of administration and technology resources, and generation of win-win scenarios among government, metro company, people and stakeholders.

关键词： urban rail transit     Railway+ Property(R+P)     sustainability     transit oriented development     private public partnership    

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Introduction to the Special Section on Biomedical Devices for Personal Health Applications

I-Ming CHEN

《机械工程前沿（英文）》 2011年 第6卷 第1期   页码 1-2 doi: 10.1007/s11465-011-0210-6

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Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

《工程管理前沿（英文）》 2019年 第6卷 第2期   页码 139-151 doi: 10.1007/s42524-019-0030-7

摘要： With the accelerated urbanization in China, passenger demand has dramatically increased in large cities, and traffic congestion has become serious in recent years. Developing public urban rail transit systems is an indispensable approach to overcome these problems. However, the high energy consumption of daily operations is an emerging issue due to increased rail transit networks and passenger demands. Thus, reducing the energy consumption and operational cost by using advanced optimization methodologies is an urgent task for operation managers. This work systematically introduces energy-saving approaches for urban rail transit systems in three aspects, namely, train speed profile optimization, utilization of regenerative energy, and integrated optimization of train timetable and speed profile. Future research directions in this field are also proposed to meet increasing passenger demands and network-based urban rail transit systems.

关键词： urban rail transit     energy saving     speed profile optimization     regenerative energy     train timetable    

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Determination and occurrence of endocrine disrupting compounds, pharmaceuticals and personal care products

Yong YU,Laosheng WU

《环境科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 475-481 doi: 10.1007/s11783-014-0640-6

摘要： Endocrine disrupting compounds (EDCs), pharmaceuticals and personal care products (PPCPs) have attracted much attention due to widespread contamination in aquatic environment. In this study, we determined 13 EDCs and PPCPs in fish blood, bile and muscle by using gas chromatography-mass spectrometry (GC-MS). The limits of quantitation (LOQ) were in the ranges of 0.23–2.54, 0.22–2.36 ng·mL , and 0.24–2.57 ng·g dry weight (dw) for fish blood, bile and muscle, respectively. Recoveries of target compounds spiked into sample matrices and passed through the entire analytical procedure ranged from 65% to 95%, from 60% to 92% and from 62% to 91% for blood, bile and muscle, respectively. The methods were applied to the analysis of fish from a lake in California. Target compounds were relatively low in bile, and only bisphenol A (BPA) and diclofenac were measurable near the LOQ. Seven of 13 compounds were detected in blood, with total concentrations up to 39 ng·mL . Only BPA was frequently found in muscle, with mean concentration of 7.26 ng·g dw. The estimated daily intake of BPA through fish consumption for U.S. resident was significantly lower than the tolerable daily intake recommended by the European Food Safety Authority. This study showed that the exposure to the bisphenol A from fish diet is unlikely to pose a health risk.

关键词： endocrine disrupting compounds (EDCs)     pharmaceuticals and personal care products (PPCPs)     fish     bisphenol A (BPA)     risk assessment    

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Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

《结构与土木工程前沿（英文）》 2009年 第3卷 第1期   页码 2-8 doi: 10.1007/s11709-009-0001-x

摘要： In this paper, a dynamic analysis model of an elevated bridge with ladder tracks under moving train load is established. The whole process of a train running through an elevated bridge at different speeds is simulated. The dynamic responses of the elevated bridge with ladder track and the running safety and comfort index of train vehicles are evaluated. Compared with the dynamic responses of an elevated bridge with ordinary non-ballasted slab track, the ladder track’s effect on reducing the vibration of an elevated bridge is analyzed. The analysis results show that the ladder track has good vibration reduction characteristics as compared to ordinary non-ballasted track.

关键词： rail transit     elevated bridge     ladder track     dynamic response    

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Research on the Relationship between Personal-Organizational Values Fit and Job Involvement of the New

Ai-hua Huang,Guo-tao Guo,Hai-xia Qiu

《工程管理前沿（英文）》 2015年 第2卷 第1期   页码 31-34 doi: 10.15302/J-FEM-2015005

摘要： To improve the management of the new generation of employees, the authors have discussed the relationship between the personal-organizational values fit and job involvement of the new generation of employees, and made perceived organizational support as a mediating variable. The empirical results found that the personal-organizational values fit had a significant positive effect on job involvement of the new generation of employees and the perceived organizational support became as the mediating variable.

关键词： personal-organizational values fit     job involvement     perceived organizational support     new generation of employees    

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CORRECTION to: Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

《工程管理前沿（英文）》   页码 698-698 doi: 10.1007/s42524-019-0047-y

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Air-borne noise of thermal module and system for notebook personal computers: experimental study

SHI Junye, JIANG Cailing, QIAO Junsheng, CHEN Jiangpin, LI Xiaoping, ZHANG Xiaojun

《能源前沿（英文）》 2008年 第2卷 第2期   页码 174-178 doi: 10.1007/s11708-008-0034-1

摘要： Thermal performance is the most important issue to be considered when a thermal module is designed for a notebook personal computer (PC). Because the fan causes air-borne noise and affects the user’s comfort, the acoustic characteristics of the module attract more attention. Experiments were conducted to study the noise sources, the noise characteristic and the main factors influencing the noise level. The difference between the air-borne noise of the thermal module and the whole computer system was analyzed and its propagating characteristics were derived. The influence of I/O ports on the air-borne noise was also studied experimentally.

关键词： air-borne     attention     propagating     characteristic     personal computer    

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论城市轨道交通的衔接与发展

闫平

《中国工程科学》 2009年 第11卷 第1期   页码 92-96

摘要：

我国城市公共交通领域已经进入了一个快速发展的建设时期，以北京城市轨道交通规划为例，分析当前我国城市轨道交通在规划、建设及运营方面存在的问题，借鉴国际大都市轨道交通在规划、建设、运营方面的轨道交通方式、客流出行换乘方便、整合既有各种资源、交通带动城市发展的经验，提出了应建立综合协调机制、完善轨道交通规划、打造综合交通枢纽的优化原则，以及利用国有铁路资源实现轨道交通换乘与衔接具体建议。

关键词： 城市轨道交通     衔接与发展     调整建议    

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Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 595-595 doi: 10.1007/s11783-012-0452-5

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Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal

《化学科学与工程前沿（英文）》 2023年 第17卷 第10期   页码 1544-1554 doi: 10.1007/s11705-022-2288-2

摘要： The current SARS-CoV-2 pandemic has resulted in the widespread use of personal protective equipment, particularly face masks. However, the use of commercial disposable face masks puts great pressure on the environment. In this study, nano-copper ions assembled cotton fabric used in face masks to impart antibacterial activity has been discussed. To produce the nanocomposite, the cotton fabric was modified by sodium chloroacetate after its mercerization, and assembled with bactericidal nano-copper ions (about 10.61 mg·g–1) through electrostatic adsorption. It demonstrated excellent antibacterial activity against Staphylococcus aureus and Escherichia coli because the gaps between fibers in the cotton fabric allow the nano-copper ions to be fully released. Moreover, the antibacterial efficiency was maintained even after 50 washing cycles. Furthermore, the face mask constructed with this novel nanocomposite upper layer exhibited a high particle filtration efficiency (96.08% ± 0.91%) without compromising the air permeability (28.9 min·L–1). This green, economical, facile, and scalable process of depositing nano-copper ions onto modified cotton fibric has great potential to reduce disease transmission, resource consumption, and environmental impact of waste, while also expanding the range of protective fabrics.

关键词： cellulose-based     nanocomposite     biodegradable antibacterial fabric     nano-copper ions     face masks    

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标题 作者 时间 类型 操作

Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

期刊论文

System and prospects of China’s intercity rail transit technology

Ming GONG

期刊论文

Screening of indicator pharmaceuticals and personal care products in landfill leachates: a case study

期刊论文

Coupling analysis of passenger and train flows for a large-scale urban rail transit system

期刊论文

Study of Sustainable Urban Rail Transit Development Model in China

Wen-wu Yang

期刊论文

Introduction to the Special Section on Biomedical Devices for Personal Health Applications

I-Ming CHEN

期刊论文

Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

期刊论文

Determination and occurrence of endocrine disrupting compounds, pharmaceuticals and personal care products

Yong YU,Laosheng WU

期刊论文

Dynamic analysis of rail transit elevated bridge with ladder track

He XIA, Yushu DENG, Yongwei ZOU, Guido DE ROECK, Geert DEGRANDE

期刊论文

Research on the Relationship between Personal-Organizational Values Fit and Job Involvement of the New

Ai-hua Huang,Guo-tao Guo,Hai-xia Qiu

期刊论文

CORRECTION to: Energy-saving operation approaches for urban rail transit systems

Ziyou GAO, Lixing YANG

期刊论文

Air-borne noise of thermal module and system for notebook personal computers: experimental study

SHI Junye, JIANG Cailing, QIAO Junsheng, CHEN Jiangpin, LI Xiaoping, ZHANG Xiaojun

期刊论文

论城市轨道交通的衔接与发展

闫平

期刊论文

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

期刊论文

Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal

期刊论文