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Evaluation of the contract reliability for alternative infrastructure project delivery: a contract engineering method

Bing WANG, Qingbin CUI, Shuibo ZHANG

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 239-248 doi: 10.1007/s42524-019-0018-3

Abstract: When designing contracts, governments usually offer incentives while requiring cost or time guaranteeThis study fills this gap by developing a methodology that analyzes the appropriateness of guaranteeThe New Mexico Highway 44 project, in which three warranty provision arrangements are investigated, iscombination of the ceiling clause and the warranty option will therefore result in improved contract provision

Keywords： infrastructure development     contract design     contract reliability     guarantee provision     contract engineering    

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State versus private sector provision of water services in Armenia

Naira HARUTYUNYAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 620-630 doi: 10.1007/s11783-012-0425-8

Abstract: Despite increasing advocacy and adaptation of public-private model of water governance worldwide since the 1990s, today only 5% of the world’s population is served by water utilities with private involvement. The present article examines the experience of the water sector in Armenia with private sector participation. The study describes the process of the introduction of public-private partnerships in the water sector and focuses on analyzing the impact of privatization on water utility performance. The analysis employs the partial indicator method for evaluating the impacts in relation to operational, finance, and environmental performance, done by drawing on the database for the five water companies in Armenia. The empirical evidence shows that private participation in general led to improved overall performance. In particular, private involvement resulted in increased operational efficiency in terms of labor productivity, water metering, continuity of service, and revenue collection efficiency. There were mixed improvements in the operating cost coverage ratio. As for environmental performance, there were gains in the reduction of residential water consumption, accompanied, however, by an increase in non-revenue water.

Keywords： water governance     water privatization     public-private partnership     operational efficiency     Armenia     transition economy    

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Reliability guarantee framework for the Sichuan–Tibet Railway

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 480-491 doi: 10.1007/s42524-021-0170-4

Abstract: This study proposes a novel reliability framework to guarantee the ideal operation state of the Sichuan–Tibet

Keywords： Sichuan–Tibet Railway     operational efficiency     reliability guarantee     Nine-Connotation     implementation    

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Investigating the effect of online and offline reputation on the provision of online counseling services

Frontiers of Engineering Management   Pages 563-576 doi: 10.1007/s42524-022-0198-0

Abstract: hospitals and e-health platforms relies on the participation of patients and physicians, especially on the provision

Keywords： Internet hospitals     physicians’ online counseling     online reputation     offline reputation    

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ATTITUDES AND CONSUMER PREFERENCE FOR ENVIRONMENTALLY-FRIENDLY BEVERAGE PACKAGING: THE ROLE OF INFORMATION PROVISION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 95-108 doi: 10.15302/J-FASE-2022478

Abstract:

● Consumer preference for environmentally-friendly beverage packaging was investigated.

Keywords： China     consumer preference     food and beverage packaging     green identity label     information treatment     plastics    

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CAR T cells redirected against tumor-specific antigen glycoforms: can low-sugar antigens guarantee a

Frontiers of Medicine 2022, Volume 16, Issue 3,   Pages 322-338 doi: 10.1007/s11684-021-0901-2

Abstract: Immune-based therapies have experienced a pronounced breakthrough in the past decades as they acquired multiple US Food and Drug Administration (FDA) approvals for various indications. To date, six chimeric antigen receptor T cell (CAR-T) therapies have been permitted for the treatment of certain patients with relapsed/refractory hematologic malignancies. However, several clinical trials of solid tumor CAR-T therapies were prematurely terminated, or they reported life-threatening treatment-related damages to healthy tissues. The simultaneous expression of target antigens by healthy organs and tumor cells is partly responsible for such toxicities. Alongside targeting tumor-specific antigens, targeting the aberrantly glycosylated glycoforms of tumor-associated antigens can also minimize the off-tumor effects of CAR-T therapies. Tn, T, and sialyl-Tn antigens have been reported to be involved in tumor progression and metastasis, and their expression results from the dysregulation of a series of glycosyltransferases and the endoplasmic reticulum protein chaperone, Cosmc. Moreover, these glycoforms have been associated with various types of cancers, including prostate, breast, colon, gastric, and lung cancers. Here, we discuss how underglycosylated antigens emerge and then detail the latest advances in the development of CAR-T-based immunotherapies that target some of such antigens.

Keywords： cancer immunotherapy     chimeric antigen receptor     solid tumors     tumor-associated antigen     glycosylation     O-glycans     adoptive cell therapy    

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Service Security of Underwater Tunnel Lining Structures and Corresponding Guarantee Countermeasures

He Chuan,Liu Sijin,Zhang Yuchun and Feng Kun

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 44-51 doi: 10.15302/J-SSCAE-2017.06.007

Abstract:

This paper analyzes four aspects of the safety problems in tunnel lining structures: design and construction, environmental erosion, sudden natural disasters, and sudden accidents. A survey of underwater tunneling such as the Huangpu River’s cross-river tunnel and the underground traffic tunnel in Shanghai was carried out, and the status quo of China’s underwater tunnel lining structure was analyzed. Based on these analyses, countermeasures guaranteeing the long-life security of underwater tunnel structures are being sought regarding tunnel construction, structural performance degradation, sudden natural disasters, and sudden accidents. These countermeasures are being sought to effectively protect and ensure the service performance of the tunnel structures during their entire life cycle. These security measures can ensure the safe performance of the structure during its entire life cycle, even under long service times. This research can serve as a reference for enhancing the structural security of underwater tunnels and other major tunnel structures.

Keywords： underwater tunnels     service security     security guarantee countermeasures     long life     structural defects    

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Safety Guarantee Measures for Subsea Shield Tunnel Segments Based on Life Cycle Deterioration Analysis

Liu Sijin,He Chuan,Sun Qi and Feng Kun

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 52-60 doi: 10.15302/J-SSCAE-2017.06.008

Abstract:

The segment joint is the weak link in the lining structure of subsea tunnels, as it is under the continuous coupled effect of high water pressure and the corrosive seawater environment. If its performance deteriorates, it will seriously affect the safety of the lining structure of entire subsea shield tunnels. Based on an analysis of existing research into segment joint erosion and deterioration, a tunnel service time factor is introduced. Considering the influence of seawater pressure infiltration and chloride ion erosion and migration, a model analyzing the erosion and deterioration of the segment joint over its whole life cycle was subsequently established. The law governing the progressive erosion and deterioration of the segment joints of subsea tunnels over the entire life cycle was analyzed. The effects of seawater pressure and ion concentration on the erosion, deterioration, and steel corrosion of segment joints were studied. Based on the analysis of erosion and deterioration over the entire life cycle, economic and rational measures to ensure the long-term safety of the segment lining structure of subsea shield tunnels were proposed.

Keywords： shield tunnel     safety guarantee     deterioration analysis     ion erosion     segment joint    

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Genetic Crop Improvement: A Guarantee for Sustainable Agricultural Production

Jianmin Wan

Engineering 2018, Volume 4, Issue 4,   Pages 431-432 doi: 10.1016/j.eng.2018.07.019

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“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 304-307 doi: 10.1007/s42524-019-0079-3

Abstract: Xiaobo WANG. [J]. Front. Eng, 2019, 6(1): 131-137.Peter REDFERN, Hua ZHONG. [J]. Front. Eng, 2017, 4(2): 193-200.Qixiang FAN. [J]. Front. Eng, 2017, 4(2): 231-237.Ming-zhou Liu,Cong-hu Liu,Mao-gen Ge,Yuan Zhang,Qing-hua Zhu. [J]. Front. Eng, 2016, 3(2): 144-146.Yu Zhao,Sheng-quan Wang,Ke-chao Zhu. [J]. Front. Eng, 2015, 2(1): 35-38.Ru-gui Chen,Jia-meng Chen. [J]. Front. Eng, 2014, 1(1): 52-61.An Wang. [J]. Front. Eng, 2014, 1(1): 13-17.

Keywords： permafrost protection     sustainable development     health guarantee system    

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Toward Trustworthy Decision-Making for Autonomous Vehicles: A Robust Reinforcement Learning Approach with Safety Guarantees

Xiangkun He,Wenhui Huang,Chen Lv,

Engineering doi: 10.1016/j.eng.2023.10.005

Abstract: Moreover, we devise a safety mask to guarantee the collision safety of the autonomous driving agent during

Keywords： Autonomous vehicle     Decision-making     Reinforcement learning     Adversarial attack     Safety guarantee    

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Suitable Weir Heights to Improve the Provision of Environmental Flows in Urban Rivers Article

Yuanyuan Sun, Xin’an Yin, Xianqiang Mao, Enze Zhang, Yanwei Zhao

Engineering 2021, Volume 7, Issue 2,   Pages 187-194 doi: 10.1016/j.eng.2020.05.022

Abstract: In the new framework, e-flow provision and flow velocity maintenance are added concerns and the actuale-flow requirements, whereas the new framework offered more reasonable heights that improved e-flow provision

Keywords： Environmental flow     Urban rivers     River restoration    

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Strategies and Policies for the Ecological and Food Security of China’s Grassland

Research Group of Strategies to Ensure Grassland Ecological and Food Security in China

Strategic Study of CAE 2016, Volume 18, Issue 1,   Pages 8-16 doi: 10.15302/J-SSCAE-2016.01.002

Abstract:

As the largest terrestrial ecosystem in China, grassland plays a strategic role in ensuring the ecological and food security and carrying forward the grassland culture of China. This paper analyzes the current situation, development trend and major influence factors of the resources, ecological functions and productivity of the grassland in China and discusses the current and future challenges, opportunities and potential of China's grassland ecological security and productivity as well as the development of grassland husbandry. Based on the analysis, the author further makes suggestions on the strategic goals and focuses, key measures and major policies for the ecological and food security of China's grassland.

Keywords： grassland     provision of ecological function     food security     development strategy     policy recommendations    

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Safety of Highway Bridges in China

Zhou Jianting and Zheng Dan

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 27-37 doi: 10.15302/J-SSCAE-2017.06.005

Abstract: Safety guarantee issues will become increasingly prominent.

Keywords： highway bridge     safety     guarantee     technology    

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Discussion on Long-Life Security Strategies for Railway Track Engineering

Wang Ping,Chen Rong and An Boyang

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 66-71 doi: 10.15302/J-SSCAE-2017.06.010

Abstract:

Although significant progress in the development of rail transportation infrastructure has been achieved in China, operational safety management and efficient maintenance still has numerous complicated problems to be solved, especially relating to insufficient service life. Therefore, it is particularly urgent to organize and implement a long-life security plan for railway track engineering. This paper first reviews recent achievements in the field of railway track engineering in China, and then introduces advancements in this field in developed countries. Compared to developed countries, current research into long-life safety in the field of railway track engineering in China has much room for improvement; there is the absence of a top-level design, a lack of systematic research work, and insufficient depth and breadth of research. This paper concludes by providing suggestions in terms of theoretical research, talent cultivation, intelligent information management, and performance improvement and recovery.

Keywords： railway track engineering     long life     safety guarantee     Shift2Rail    

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Title Author Date Type Operation

Evaluation of the contract reliability for alternative infrastructure project delivery: a contract engineering method

Bing WANG, Qingbin CUI, Shuibo ZHANG

Journal Article

State versus private sector provision of water services in Armenia

Naira HARUTYUNYAN

Journal Article

Reliability guarantee framework for the Sichuan–Tibet Railway

Journal Article

Investigating the effect of online and offline reputation on the provision of online counseling services

Journal Article

ATTITUDES AND CONSUMER PREFERENCE FOR ENVIRONMENTALLY-FRIENDLY BEVERAGE PACKAGING: THE ROLE OF INFORMATION PROVISION

Journal Article

CAR T cells redirected against tumor-specific antigen glycoforms: can low-sugar antigens guarantee a

Journal Article

Service Security of Underwater Tunnel Lining Structures and Corresponding Guarantee Countermeasures

He Chuan,Liu Sijin,Zhang Yuchun and Feng Kun

Journal Article

Safety Guarantee Measures for Subsea Shield Tunnel Segments Based on Life Cycle Deterioration Analysis

Liu Sijin,He Chuan,Sun Qi and Feng Kun

Journal Article

Genetic Crop Improvement: A Guarantee for Sustainable Agricultural Production

Jianmin Wan

Journal Article

“Heavenly Road”: The Qinghai–Tibet Railway

Yongfu SUN

Journal Article

Toward Trustworthy Decision-Making for Autonomous Vehicles: A Robust Reinforcement Learning Approach with Safety Guarantees

Xiangkun He,Wenhui Huang,Chen Lv,

Journal Article

Suitable Weir Heights to Improve the Provision of Environmental Flows in Urban Rivers

Yuanyuan Sun, Xin’an Yin, Xianqiang Mao, Enze Zhang, Yanwei Zhao

Journal Article

Strategies and Policies for the Ecological and Food Security of China’s Grassland

Research Group of Strategies to Ensure Grassland Ecological and Food Security in China

Journal Article

Safety of Highway Bridges in China

Zhou Jianting and Zheng Dan

Journal Article

Discussion on Long-Life Security Strategies for Railway Track Engineering

Wang Ping,Chen Rong and An Boyang

Journal Article