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Are Relational Contracting Approaches Applicable to Public Projects in China?

Wei-ya Hao,Hui-ping Ding,Yong-jian Ke,Ying-ying Wang

《工程管理前沿（英文）》 2014年 第1卷 第4期   页码 358-363 doi: 10.15302/J-FEM-2014052

摘要： Rising complexities in construction projects management has boosted the importance of relational contracting (RC) in the field. RC is based on recognition of mutual benefits and win-win scenarios gained through more cooperative relationships between contracting parties. There have been a range of RC initiatives across many countries towards deeper collaborative relationships; however, such formal RC approaches are not yet well established in China. In this paper, the feasibility of implementing RC in the China’s public construction projects is investigated. The results indicate that RC is highly feasible for implementation in China due to its theoretical benefits, its alignment to Chinese culture, and its behaviors in past public construction projects. Three strategies for facilitating the implementation of RC in China are proposed.

关键词： relational contracting     public construction     relationship    

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Performance of seven highway construction contracting methods analyzed by project size

Yuanxin ZHANG, Abdol CHINI, R. Edward MINCHIN Jr., Lourdes PTSCHELINZEW, Dev SHAH

《工程管理前沿（英文）》 2018年 第5卷 第2期   页码 240-250 doi: 10.15302/J-FEM-2018040

摘要： The conventional Design-Bid-Build (DBB) construction contracting method has had various drawbacks exposed in highway construction practice, including lack of communication, inefficient design, antagonizing relationships, and increased disputes. To mitigate the negative aspects of DBB, several alternative contracting methods and alternative project delivery systems have been devised and introduced to the industry over the past 30 years. Five such innovations were tested by a research team from the University of Florida under the sponsorship of the Florida Department of Transportation (FDOT). To perform a realistic assessment, this study categorized FDOT projects built between 2006 and 2015 into groups according to current contract amounts. Both absolute and relative metrics were defined and employed. For comparison purposes, a collective analysis on all gathered data was performed. Additionally, the influence of outliers on the results was examined. The results showed that analyses based on individual cost categories are more convincing because large projects tend to impose stronger influence on the analyses. In addition, outliers must be identified and screened to reach realistic and reliable conclusions. With regard to the actual performance of the contracting methods, each performs differently within different cost categories.

关键词： alternative contracting methods     time     cost     performance evaluation    

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Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysis

Tao FU, Jibin ZHAO, Weijun LIU

《机械工程前沿（英文）》 2012年 第7卷 第4期   页码 445-452 doi: 10.1007/s11465-012-0338-z

摘要：

This paper investigates optimization problem of the cutting parameters in high-speed milling on NAK80 mold steel. An experiment based on the technology of Taguchi is performed. The objective is to establish a correlation among spindle speed, feed per tooth and depth of cut to the three directions of cutting force in the milling process. In this study, the optimum cutting parameters are obtained by the grey relational analysis. Moreover, the principal component analysis is applied to evaluate the weights so that their relative significance can be described properly and objectively. The results of experiments show that grey relational analysis coupled with principal component analysis can effectively acquire the optimal combination of cutting parameters and the proposed approach can be a useful tool to reduce the cutting force.

关键词： high-speed milling     grey relational analysis     principal component analysis     parameters optimization    

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Study on System Coupling Interaction of Large-Scale Construction Companies Programme Contracting and

Feng Guo,Tian Huang

《工程管理前沿（英文）》 2015年 第2卷 第2期   页码 137-140 doi: 10.15302/J-FEM-2015022

摘要： Constant changes in the construction market have resulted in individual projects being challenged to meet the long-term growth needs of large construction companies. Change should be based on the construction of this new model project group, to achieve better interaction, and to allow for a more rapid enterprise development. This paper is based on the system coupling analysis of large-scale construction enterprises and construction projects. A clear system presents itself and forms the basis of the system construction, institutional change and mechanism of the path between base construction projects and business growth.

关键词： programme contracting     firm growth     coupling interaction     system     large construction companies    

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面向语义的精简化多关系频繁模式发现方法

杨炳儒,张伟,钱榕

《中国工程科学》 2008年 第10卷 第9期   页码 47-53

摘要：

多关系频繁模式发现能够直接从复杂结构化数据中发现涉及多个关系的复杂频繁模式，避免了传统方法的局限。有别于主流基于归纳逻辑程序设计技术的方法，提出了基于合取查询包含关系的面向语义的精简化多关系频繁模式发现方法，具有理论与技术基础的新颖性，解决了两种语义冗余问题。实验表明，该方法在可理解性、功能、效率以及可扩展性方面具有优势。

关键词： 多关系数据挖掘     频繁模式发现     合取查询     精简化模式    

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Strategic Guidance Effect of Large-Scale Construction Enterprise Growth to Programme Contracting

Feng Guo,Yi-qi Chen,Yi-qing Cai

《工程管理前沿（英文）》 2016年 第3卷 第3期   页码 246-251 doi: 10.15302/J-FEM-2016034

摘要： In the case of single project management standing the major place, the management on the organizational level and project level is separated from each other in large-scale construction enterprises, and it is not long before program management theories applied to construction industry. Under the new situation of construction project clustering, how to choose projects has been the strategic decision for construction enterprises. Therefore, with the theory of program management and strategic management, this paper analyzes the relationship between the strategic growth of large-scale construction enterprises and program contracting, and attempts to provide meaningful ideas for enterprises to choose program from the strategic level.

关键词： large-scale construction enterprise     enterprise growth     programme contracting     strategic interaction    

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Reliability analysis on civil engineering project based on integrated adaptive simulation annealing and gray correlation method

Xiao-ping BAI,Ya-nan LIU

《结构与土木工程前沿（英文）》 2016年 第10卷 第4期   页码 462-471 doi: 10.1007/s11709-016-0361-y

摘要： Dynamic reliability is a very important issue in reliability research. The dynamic reliability analysis for the project is still in search of domestic and international research in the exploration stage. By now, dynamic reliability research mainly concentrates on the reliability assessment; the methods mainly include dynamic fault tree, extension of event sequence diagram and Monte Carlo simulation, and et al. The paper aims to research the dynamic reliability optimization. On the basis of analysis of the four quality influence factors in the construction engineering, a method based on gray correlation degree is employed to calculate the weights of factors affecting construction process quality. Then the weights are added into the reliability improvement feasible index (RIFI). Furthermore, a novel nonlinear programming mathematic optimization model is established. In the Insight software environment, the Adaptive Simulated Annealing (ASA) algorithm is used to get a more accurate construction subsystem optimal reliability under different RIFI conditions. In addition, the relationship between construction quality and construction system reliability is analyzed, the proposed methods and detailed processing can offer a useful reference for improving the construction system quality level.

关键词： civil engineering     dynamic reliability     grey relational degree     adaptive simulated annealing algorithm    

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Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

《工程管理前沿（英文）》 2021年 第8卷 第3期   页码 402-411 doi: 10.1007/s42524-020-0098-0

摘要： The use of engineering procurement construction (EPC) mode is currently a trend in hydropower engineering construction. The clarification of the internal relationship between hydropower EPC projects and the realization of synergy has great significance in improving management efficiency and implementation effect. In this work, a three-dimensional system and a system model of hydropower EPC project management synergy are constructed. The mechanism and factors that influence the degree of management synergy are analyzed on the basis of management synergy theory. Furthermore, the evaluation index system and the degree of synergy model are established, and grey relational analysis is utilized to identify the key factors that affect the synergy degree. Thus, this study aims to facilitate the hydropower EPC project management synergy, provide a quantitative method for synergy degree evaluation, and propose corresponding promotion strategies. Results show that the order degree of each subsystem presents a steady upward trend. Specifically, the order degree of the subsystem at the trial operation stage is low, which is the major restriction on the further improvement of the synergy degree of EPC project management. The key factors in improving the synergy level of hydropower EPC project management are mainly concentrated in the information and organization synergy subsystems, including the construction degree of information platform, the performance of functions, the timeliness of information transfer, and the functions of the information platform.

关键词： hydropower project     EPC mode     synergy degree model     grey relational analysis    

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基于Backbone的空间收缩与划分算法

高永超,钱恒,刘丽梅,王云争,王玎

《中国工程科学》 2009年 第11卷 第9期   页码 74-77

摘要：

搜索空间的规模和复杂程度是决定问题求解难度的重要因素，而解空间的信息往往可以引导搜索找到最优解。在已知JSP空间结构的基础上，提出一种空间收缩与划分算法。算法利用搜索算法获得的较优解，结合组合优化问题解的backbone的概念，将搜索空间收缩并划分为一个或多个优解域，在优解域内再进行小规模问题的优化。该算法不必在求解前或求解过程中进行大量的统计分析工作，可以利用求解信息对解空间的地形进行估计，提高求解速度和解的质量。实验结果也证明了算法的有效性。

关键词： 车间作业调度问题     解空间     Backbone    

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Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach of Taguchi, GRA and entropy method

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

《机械工程前沿（英文）》 2012年 第7卷 第3期   页码 288-299 doi: 10.1007/s11465-012-0333-4

摘要：

Wire electrical discharge machining (WEDM) is a well known process for generating intricate and complex geometries in hard metal alloys and metal matrix composites with high precision. In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported. Taguchi’s design of experiment has been utilised to investigate the process parameters for four machining characteristics namely material removal rate, surface roughness, angular error and radial overcut. In order to optimize the four machining characteristics simultaneously, grey relational analysis (GRA) coupled with entropy measurement method has been employed. Through GRA, grey relational grade has been computed as a performance index for predicting the optimal parameters setting for multi machining characteristics. Using Analysis of Variance (ANOVA) on grey relational grade, significant parameters affecting the multi-machining characteristics has been determined. Confirmatory results prove the potential of present approach.

关键词： tungsten carbide composite     wire electrical discharge machining (WEDM)     Taguchi method     grey relational analysis (GRA)     entropy measurement method    

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Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement

Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO

《结构与土木工程前沿（英文）》 2022年 第16卷 第8期   页码 947-961 doi: 10.1007/s11709-022-0836-y

摘要： This research explored the application potential of PUM thin-overlay technology on airport rapid maintenance. The rapid curing process of polyurethane binder determines the limited time window for mixing and construction of polyurethane-bonded mixture (PUM), which presents significant difference with hot-mix asphalt (HMA) technology. Therefore, this research investigated and optimized the mix design of PUM for airport thin-overlay technology based on its thermosetting characteristics. First, limestone and basalt were comprehensively compared as an aggregate for PUM. Then, the effects of molding and curing conditions were studied in terms of mixing time, molding method, molding parameters and curing temperature. Statistical analysis was also conducted to evaluate the effects of gradation and particle size on PUM performances based on gray relational analysis (GRA), thus determining the key particle size to control PUM performances. Finally, the internal structural details of PUM were captured by X-ray CT scan test. The results demonstrated that it only took 12 hours to reach 75% of maximum strength at a curing temperature of 50 °C, indicating an efficient curing process and in turn allowing short traffic delay. The internal structural details of PUM presented distribution of tiny pores with few connective voids, guaranteeing waterproof property and high strength.

关键词： polyurethane-bonded mixture     mix design optimization     airport pavement     thin overlay     gray relational analysis    

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How does the improved DB mode degrade the complex integrity of infrastructure mega-projects? Evidence from the Hong Kong-Zhuhai-Macao Bridge project in China

Jinwen ZHANG, Yumin QIU

《工程管理前沿（英文）》 2018年 第5卷 第1期   页码 40-51 doi: 10.15302/J-FEM-2018083

摘要： Complex integrity is one of the main characteristics of infrastructure mega-projects (IMPs). Cost, technology, risk, duration, environmental impact, and other uncertain complexities are interrelated and constitute a challenging and complex management problem. At present, there is no unified understanding of or solutions to these complex integrity problems. This study analyzes the complex integrity of the island-tunnel subproject of the Hong Kong-Zhuhai-Macao Bridge (HZMB) project and proposes an improved design-build (DB) mode in which the owner provides a preliminary design and has the right to form and manage consortium. This improved DB mode creatively degrades the special complexities that arise from multiple dimensions. On this basis, it is an efficacious way to grasp the main contradictions, integrate the effective resources, and degrade the complex integrity in multiple dimensions and at multiple levels so as to effectively deal with the complexity management of IMPs.

关键词： Hong Kong-Zhuhai-Macao Bridge project     island-tunnel subproject     complex integrity     complexity degradation     the general contracting mode of design-build     the design-build consortium    

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Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs

Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM

《机械工程前沿（英文）》 2012年 第7卷 第3期   页码 279-287 doi: 10.1007/s11465-012-0329-0

摘要：

Through a pin-on-disc type wear setup, the dry sliding wear behavior of SiC-reinforced aluminum composites produced using the molten metal mixing method was investigated in this paper. Dry sliding wear tests were carried on SiC-reinforced metal matrix composites (MMCs) and its matrix alloy sliding against a steel counter face. Different contact stresses, reinforcement percentages, sliding distances, and sliding velocities were selected as the control variables, and the responses were selected as the wear volume loss (WVL) and coefficient of friction (COF) to evaluate the dry sliding performance. An L25 orthogonal array was employed for the experimental design. Initially, the optimization of the dry sliding performance of the SiC-reinforced MMCs was performed using grey relational analysis (GRA). Based on the GRA, the optimum level parameters for overall grey relational grade in terms of WVL and COF were identified. Analysis of variance was performed to determine the effect of individual factors on the overall grey relational grade. The results indicated that the sliding velocity was the most effective factor among the control parameters on dry sliding wear, followed by the reinforcement percentage, sliding distance, and contact stress. Finally, the wear surface morphology and wear mechanism of the composites were investigated through scanning electron microscopy.

关键词： aluminum     ANOVA (analysis of variance)     grey relational analysis     metal matrix composites     SiC particulates     Taguchi    

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照片分享服务中的人际关系印象管理 Article

李凤华, 孙哲, 牛犇, 郭云川, 刘子文

《工程（英文）》 2018年 第4卷 第1期   页码 85-93 doi: 10.1016/j.eng.2018.02.003

摘要：
随着社交网络和移动设备的发展，照片分享已成为一种非常流行的社交活动。由于人们在日常生活中希望展现一种积极的印象，照片分享中的印象管理已变得越来越重要。然而，大多数现有的隐私保护工作都存在两个问题：①为了建立一个合适的印象，用户必须由自己决定是否将照片分享给其他用户；②用户在分享合影照片时，隐含在合影中的人际关系信息也存在泄漏风险，如通过人脸的相对位置可以推断用户的情侣关系或者性倾向。本文提出了一种人际关系印象管理方案（SRIM），通过为用户自动推荐照片分享策略保护用户的关系隐私信息。具体来说，本文设计了一种轻量级的人脸距离测量方法，利用照片的元数据和人脸检测结果计算用户在合影中的实际距离，再通过关系印象评估算法对合影中的人际关系进行评估和管理。基于该方案，本文实现了一个原型系统，并邀请了21 位志愿者对系统的功能进行了验证，评估结果验证了该方案的有效性和效率。

关键词： 印象管理     关系隐私信息     照片分享     策略推荐     人际距离学    

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非独立同分布推荐系统：推荐范式转换的综述和框架 Artical

Longbing Cao

《工程（英文）》 2016年 第2卷 第2期   页码 212-224 doi: 10.1016/J.ENG.2016.02.013

摘要：

虽然推荐系统在我们的生活、学习、工作和娱乐中扮演着越来越重要的角色，但是很多时候我们收到的推荐都是不相关的、重复的，或者包含不感兴趣的产品和服务。这些差的推荐系统产生的原因来源于一个本征假设：传统的理论和推荐系统认为用户和物品是独立同分布的(IID)。另一个明显的现象是，虽然投入了很多的精力模拟用户或者物品的特殊属性，但用户和物品的总体属性及它们之间的非独立同分布性(non-IID) 被忽略了。本文先讨论了推荐系统的非独立同分布性，紧接着介绍了非独立同分布性原理，目的是从耦合和异构性的角度来深入阐述传统的推荐系统的固有本质。这种非独立同分布推荐系统引起了传统推荐系统范式的转化—— 从独立同分布向非独立同分布进行转化，希望能够形成高效的、相关性高的、个人订制和可操作的推荐系统。这种系统创造了令人兴奋的能够解决包含冷启动、以稀疏数据为基础、跨域、基于群组信息和欺诈攻击等各种复杂情况的新的研究方向和解决方案。

关键词： 独立同分布     非独立同分布     异构性     关系耦合     耦合学习     关系学习     独立同分布学习     非独立同分布学习     推荐系统     推荐     非独立同分布推荐    

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标题 作者 时间 类型 操作

Are Relational Contracting Approaches Applicable to Public Projects in China?

Wei-ya Hao,Hui-ping Ding,Yong-jian Ke,Ying-ying Wang

期刊论文

Performance of seven highway construction contracting methods analyzed by project size

Yuanxin ZHANG, Abdol CHINI, R. Edward MINCHIN Jr., Lourdes PTSCHELINZEW, Dev SHAH

期刊论文

Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysis

Tao FU, Jibin ZHAO, Weijun LIU

期刊论文

Study on System Coupling Interaction of Large-Scale Construction Companies Programme Contracting and

Feng Guo,Tian Huang

期刊论文

面向语义的精简化多关系频繁模式发现方法

杨炳儒,张伟,钱榕

期刊论文

Strategic Guidance Effect of Large-Scale Construction Enterprise Growth to Programme Contracting

Feng Guo,Yi-qi Chen,Yi-qing Cai

期刊论文

Reliability analysis on civil engineering project based on integrated adaptive simulation annealing and gray correlation method

Xiao-ping BAI,Ya-nan LIU

期刊论文

Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

期刊论文

基于Backbone的空间收缩与划分算法

高永超,钱恒,刘丽梅,王云争,王玎

期刊论文

Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach of Taguchi, GRA and entropy method

Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL

期刊论文

Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement

Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO

期刊论文

How does the improved DB mode degrade the complex integrity of infrastructure mega-projects? Evidence from the Hong Kong-Zhuhai-Macao Bridge project in China

Jinwen ZHANG, Yumin QIU

期刊论文

Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs

Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM

期刊论文

照片分享服务中的人际关系印象管理

李凤华, 孙哲, 牛犇, 郭云川, 刘子文

期刊论文

非独立同分布推荐系统：推荐范式转换的综述和框架

Longbing Cao

期刊论文