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Hierarchical methodological framework to improve Policy Environmental Assessment: Based on policy layer research

Yinglie ZHOU, Cunkuan BAO,

《环境科学与工程前沿(英文)》 2010年 第4卷 第1期   页码 82-90 doi: 10.1007/s11783-010-0004-9

摘要: This study explores the current implementation challenges of the Policy Environmental Assessment (PEA), including the implementation of a far richer, more diverse (at macro level), and better understanding of PEA and integration with decision making. The results contribute to the analysis of PEA through different hierarchies of assessment. Stemming from the theory and practice of policy, a concept of PEA hierarchies is proposed including the uppermost PEA, upper-lower PEA, and lowermost PEA. Afterward, the differences of the three hierarchies are interpreted, in terms of aims, principles, processes, and methods. The evaluation of the policy environmental impacts from different lens helps solve the complexities of policies and identify opportunities for improvement of PEA.

关键词: Policy Environmental Assessment (PEA)     policy hierarchy     PEA hierarchy     methodological framework    

Study on affecting factors of collaborative product development based on collaboration hierarchy model

ZHANG Xiaodong, LI Yingzi, ZHANG Zhiqiang

《机械工程前沿(英文)》 2007年 第2卷 第2期   页码 210-213 doi: 10.1007/s11465-007-0036-4

摘要: Aiming at the levels of collaborative degree in web-based product development, a collaboration hierarchy model of this product development is developed in this paper. Based on the model, the affecting factors on collaboration levels are analyzed systematically from many aspects, such as technology, organization and business. A gap analysis method is studied in detail, and is applied in a real project. The application shows that it can solve the diverse problems of collaborative product development effectively, and help enterprises find out the critical factors that affect the collaboration.

关键词: development     web-based     business     collaborative     collaboration hierarchy    

Practical evaluation for water utilities in China by using analytic hierarchy process

Hong CHEN,Feng XIAO,Zhe BI,Ping XIAO,Dongsheng WANG,Ming YANG

《环境科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 131-137 doi: 10.1007/s11783-014-0718-1

摘要: The risk of water utilities would include the water quality failure and the water quantity failure, from the source to the tap, including the catchment, treatment, distribution and the customer plumbing system. In this paper, we proposed a practical evaluation method based on the analytic hierarchy process (AHP). The hierarchical structure of the water utilities was established in terms of the fault event analysis from the past failure accidents. The severity of criteria was preset by the experts and the probability of criteria was determined by a modified CUWA-TSM sheet with the consideration of the actual situations of the supply system. The evaluation model was successfully performed by a case study. Although, the method in this paper may not be as good as the framework of WSPs, it has a great advantage compared to WSPs and TSM. The risk management can be applied through specific software packages with a user-friendly interface, which means it is easier to implement. In addition, it can point out the critical control points (CCPs) for the decision-makers. So we believe this method will improve and play a more and more active role in the development of the risk management in China water works.

关键词: analytic hierarchy process (AHP)     risk management     water quality failure     water quantity failure    

enthalpy of formation for polycyclic aromatic hydrocarbons predicting from general connectivity based hierarchy

《化学科学与工程前沿(英文)》 2022年 第16卷 第12期   页码 1743-1750 doi: 10.1007/s11705-022-2184-9

摘要: The standard enthalpy of formation is an important predictor of the reaction heat of a chemical reaction. In this work, a high-precision method was developed to calculate accurate standard enthalpies of formation for polycyclic aromatic hydrocarbons based on the general connectivity based hierarchy (CBH) with the discrete correction of atomization energy. Through a comparison with available experimental findings and other high-precision computational results, it was found that the present method can give a good description of enthalpy of formation for polycyclic aromatic hydrocarbons. Since CBH schemes can broaden the scope of application, this method can be used to investigate the energetic properties of larger polycyclic aromatic hydrocarbons to achieve a high-precision calculation at the CCSD(T)/CBS level. In addition, the energetic properties of CBH fragments can be accurately calculated and integrated into a database for future use, which will increase computational efficiency. We hope this work can give new insights into the energetic properties of larger systems.

关键词: standard enthalpy of formation     polycyclic aromatic hydrocarbons     connectivity based hierarchy     high-precision calculation    

Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic hierarchy

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

《结构与土木工程前沿(英文)》 2021年 第15卷 第2期   页码 461-477 doi: 10.1007/s11709-021-0705-0

摘要: Many uncertain factors in the excavation process may lead to excessive lateral displacement or over-limited internal force of the piles, as well as inordinate settlement of soil surrounding the existing bridge foundation. Safety control is pivotal to ensuring the safety of adjacent structures. In this paper, an innovative method is proposed that combines an analytic hierarchy process (AHP) with a finite element method (FEM) to reveal the potential impact risk of uncertain factors on the surrounding environment. The AHP was adopted to determine key influencing factors based on the weight of each influencing factor. The FEM was used to quantify the impact of the key influencing factors on the surrounding environment. In terms of the AHP, the index system of uncertain factors was established based on an engineering investigation. A matrix comparing the lower index layer to the upper index layer, and the weight of each influencing factor, were calculated. It was found that the excavation depth and the distance between the foundation pit and the bridge foundation were fundamental factors. For the FEM, the FE baseline model was calibrated based on the case of no bridge surrounding the foundation pit. The consistency between the monitoring data and the numerical simulation data for a ground settlement was analyzed. FE simulations were then conducted to quantitatively analyze the degree of influence of the key influencing factors on the bridge foundation. Furthermore, the lateral displacement of the bridge pile foundation, the internal force of the piles, and the settlement of the soil surrounding the pile foundation were emphatically analyzed. The most hazardous construction condition was also determined. Finally, two safety control measures for increasing the numbers of support levels and the rooted depths of the enclosure structure were suggested. A novel method for combining AHP with FEM can be used to determine the key influencing aspects among many uncertain factors during a construction, which can provide some beneficial references for engineering design and construction.

关键词: deep foundation pit excavation     adjacent bridge foundation     influencing factors     analytic hierarchy process     finite element    

Application of fuzzy analytic hierarchy process model on determination of optimized pile-type

Lei MA, Shuilong SHEN, Jinhui ZHANG, Yang HUANG, Feng SHI

《结构与土木工程前沿(英文)》 2010年 第4卷 第2期   页码 252-257 doi: 10.1007/s11709-010-0017-2

摘要: Pile-type selection is a very important stage of foundation design, and there are many field factors influencing the decision of pile-type selection. Since there is a limitation of traditional “major factors method” to satisfy the requirement of modern foundation construction, this study presents an efficient approach, in which analytic hierarchy process (AHP) is employed. AHP is a multiple criteria decision-making tool that has been applied in many fields related to the decision-making, e.g., in the field of economics, marketing, sociology, etc. However, it is rarely reported that AHP is applied in the field of civil engineering for decision making. In this study, AHP combined with fuzzy synthetic evaluation method is employed to select the type of pile used as the foundation of a residential building in Fuzhou, Fujian Province, China. The results show that fuzzy AHP approach is an easy and efficient way for pile-type selection.

关键词: pile type     fuzzy synthetic evaluation     analytic hierarchy process (AHP)     optimal selection    

Aphanomyces euteiches ——加拿大豌豆生产的严重威胁 Review

Longfei Wu,Kan-Fa Chang,Robert L. Conner,Stephen Strelkov,Rudolph Fredua-Agyeman,Sheau-Fang Hwang,David Feindel

《工程(英文)》 2018年 第4卷 第4期   页码 542-551 doi: 10.1016/j.eng.2018.07.006

摘要:

豌豆(Pisum sativum var. arvense L.)是世界上重要的豆科作物。豌豆籽粒蛋白质含量很高,并能提高土壤中有效氮的含量。由一种土传卵菌根腐丝囊霉(Aphanomyces euteiches Drechs.)引起的Aphanomyces 根腐病(ARR),在包括加拿大在内的许多地区对豌豆生产构成严重威胁,在潮湿的土壤条件下引起严重的根损伤、萎蔫,造成大幅度减产。在有利于病害发生的条件下,由于病原体卵孢子的寿命长,在豌豆任何生长阶段都可以侵染豌豆植株,传统病害防控措施(如作物轮作和拌种处理)不能完全防治病害的危害。培育部分抗病或耐病豌豆品种可能是分析豌豆中根腐丝囊霉变异性和生理转化性、提高病害防治效果的有效途径。因此,检测抗病数量性状基因座(QTL)对豌豆育种计划至关重要。本文对根腐丝囊霉的致病特点、ARR 防控措施以及部分与抗性相关的QTL 进行了综述。

关键词: 豌豆     Aphanomyces euteiches     根腐病     致病力变异     数量性状基因座    

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 311-317 doi: 10.1007/s11783-008-0047-3

摘要: Ecosystem health assessment is one of the most important issues in regional ecological quality and safety studies. It also has a great significance to ecological conservation and regional development. This study focused on assessing the health status of forest, agriculture and urban ecosystems in the southwestern Beijing, China, including the Fangshan and Fengtai Districts. Based on field surveys and data collection, an assessment index system containing the vigor, organization and resilience factors was developed to measure the ecosystem health. Each index was scored from 1 to 5, representing five levels that contribute to the whole ecosystem health. The analytic hierarchy process (AHP) method was used to measure the weights of each index and three factors, and thus an overall score for a certain ecosystem was calculated. The results show that the forest ecosystem in the Fangshan District had higher health value than the Fengtai District, while the urban ecosystem had a slightly lower value in the Fangshan District than the Fengtai District. Both districts show lower resilience values in forest and urban ecosystems. Maintaining the ecosystem health will definitely benefit the long-term development of two districts. This study suggested that an approach for assessing the regional ecosystem health could be further developed to address spatial and synergy relationships between ecosystems and the three health factors.

关键词: hierarchy process     regional ecosystem     synergy     agriculture     resilience    

长江堤防安全评价的理论 方法和实现策略

李青云,张建民

《中国工程科学》 2005年 第7卷 第6期   页码 7-13

摘要:

对长江堤防安全评价的理论与方法进行了较为系统的阐述。重点论述了长江中下游堤防的特点和破坏机理,分析了与堤防安全有关的基本因素;针对堤防安全评价的层次性和动态性等特点,初步建立了长江中下游堤防安全评价的理论框架,提出了堤防安全评价的流程与方法。

关键词: 长江堤防     安全评价     指标体系     层次分析    

Evaluating and structuring indicators for wetland assessment

Xuehua LIU, Yan SUN,

《环境科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 221-227 doi: 10.1007/s11783-010-0029-0

摘要: Wetland assessment has been a popular field of research worldwide. However, various indicators have been used in wetland assessment for different purposes and backgrounds and also because of the research limitations. Therefore, a more comprehensive, sound, and efficient indicator system is needed for researchers’ referencing to evaluate wetlands. After an extensive review of wetland assessment literatures, the reported indicators were evaluated using the developed assessment system, based on the Analytical Hierarchy Process (AHP) with three main goals: nature protection, function utilization, and sustainable development. Each indicator was evaluated using two methods. The first method was to study the percentage of the indicator application, and the second was to assess the weighted ratios assigned to the indicators according to principles of comparability, typicality, sensibility, and availability. The results of these two methods were compared to study the commonalities and specialties of the indicators. They also showed that some indicators were widely used, including biodiversity, weather and climate, hydrological change, and the output of wetland. On the other hand, other sustainable indicators were easily ignored, such as environmental carrying capacity and wetland planning. Furthermore, an indicator system for wetland assessment was structured and strategized to discuss how to choose indicators for wetland assessment under different conditions. The proposed approach can be used to guide the process of wetland assessments in the future.

关键词: wetland assessment     indicators     Analytical Hierarchy Process (AHP)     comparison    

Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

《工程管理前沿(英文)》 2018年 第5卷 第2期   页码 251-267 doi: 10.15302/J-FEM-2018086

摘要: In Ethiopian construction projects, schedule delay risk is a predominant issue because it is not properly addressed. Although several studies have been focused on the various effects of risk in construction projects, limited efforts have been made to investigate the typical and the overall schedule delay risk. In this study, our aim is to detect the typical and overall schedule delay risk throughout the construction project lifecycle, which consists of the pre-construction, construction, and post-construction stages, and compare the stages with each other. Common criteria, sub-criteria, and attributes were developed for all alternatives for the purpose of making a risk decision. The methodology that was followed integrated the multiple-criteria decision-making (MCDM) model of fuzzy analytic hierarchy process comprehensive evaluation (FAHPCE) and the relative important index (RII). Data were collected from 77 participants, who were selected through purposive sampling from different contracting organizations in Ethiopian construction projects by means of questionnaires that were distributed to experienced experts. The findings showed that there is a typical delay risk either in the type or in the level of the different construction activities. Consequently, the most influenced alternative is the construction stage because of the high-risk responsibility, resource, and contract condition related criteria. The post-construction stage was the second most influenced stage because of the high-risk responsibility-related criteria. The pre-constructed stage was the least influenced stage that consist high-risk criteria of responsibility, resource, and contract condition related. These differences provided noteworthy information about risk mitigation in construction projects by identifying the exact risk level on specific activity to make appropriate decision.

关键词: fuzzy analytic hierarchy process comprehensive evaluation     construction project     detection of delay risk     relative important index    

An integrated assessment method of urban drainage system: A case study in Shenzhen City, China

DONG Xin, ZENG Siyu, CHEN Jining, ZHAO Dongquan

《环境科学与工程前沿(英文)》 2008年 第2卷 第2期   页码 150-156 doi: 10.1007/s11783-008-0014-z

摘要: In recent years, the urban drainage system in China is facing the dual pressure of renovation and construction. This requires that the integrated assessment for the planning and operation of the urban drainage system is obligatory. To evaluate the urban drainage system, an integrated assessment methodology based on the analytic hierarchy process (AHP), integrated simulation, and fuzzy assessment is established. This method is a multi-criteria decision adding app roach to the assessment of the urban drainage system comprehensively. Through the integration of the Storm Water Management Model (SWMM), a simple wastewater treatment plant model, and a surface water quality model, an integrated modelling system for the urban drainage system is developed and applied as a key tool for assessment. Using the established method, a case study in Shenzhen City has been implemented to evaluate and compare two urban drainage system reno vation plans, the distributed plan and the centralized plan. Because of the particularity of this case study, the established method is not applied entirely. Considering the water environ mental impact, ecological impact, technological feasibility, and economic cost, the integrated performance of the distri buted plan is better. As shown in this case study, the proposed method is found to be both effective and practical.

关键词: integrated assessment     hierarchy process     centralized     technological feasibility     planning    

面向任务信息的层次化存储DPM策略

黄少珉,戚隆宁,杨军,胡晨

《中国工程科学》 2010年 第12卷 第2期   页码 83-89

摘要:

面向层次化存储的DPM策略利用数据缓冲区实现请求集中从而延长PMC的空闲时间,可获得比传统策略更好的节能效果。在此基础上提出基于任务信息(task information based,TIB)的层次化存储DPM策略。TIB策略对任务的数据访问模式进一步细分,通过修改存储访问接口获知任务数据访问的模式,根据不同模式决定预读与替换算法,使策略具有更好的节能意识。

关键词: 数据缓冲区     任务信息     DPM     预读策略    

RePizer:一种软件需求排序架构 Article

Saif Ur Rehman KHAN,Sai Peck LEE,Mohammad DABBAGH1,Muhammad TAHIR,Muzafar KHAN,Muhammad ARIF

《信息与电子工程前沿(英文)》 2016年 第17卷 第8期   页码 750-765 doi: 10.1631/FITEE.1500162

摘要: 基于RePizer架构,采用已有的两种需求排序技术:计划博弈(planning game, PG)和层级分析(analytical hierarchy process, AHP),分别比较各自的预期准确度和易用程度

关键词: 软件需求;需求排序技术;排序架构;计划博弈;层级分析    

基于项目的路面养护可持续性评价工具  Article

Yibo Zhang, J.P. Mohsen

《工程(英文)》 2018年 第4卷 第2期   页码 200-208 doi: 10.1016/j.eng.2018.03.001

摘要:

路面需要养护,以防止其过度损坏,或使其恢复性能,然而在许多情况下,路面养护的重要性并没有得到足够的重视,它经常会被忽视或被作为低优先级处理。目前大多数的养护活动都存在预算问题,且只专注于清理损坏的路段。延期的路面养护会对环境和社会产生影响,因此可能会影响与养护相关的成本。可持续性评级工具是列举、解释和评估此类影响的好方法。目前已经为路面设计了多种评级工具,但是,路面养护与新建、扩建、改造路面等工程相比有不同的特点。本研究回顾了9 种路面可持续性评级工具,但这些工具没有一个可以完全描述养护特征,或者可以直接用于评估养护项目。因而,一个新型的用于路面养护的可持续性评级工具开始发展,这个新的工具可以用来评估单独的养护项目,并且可以提高公众对于路面养护重要性的认识。本文对其细节进行了描述,并通过示例展示了其评估过程和结果。

关键词: 可持续性     路面养护     PSIM     评级工具     层次分析法    

标题 作者 时间 类型 操作

Hierarchical methodological framework to improve Policy Environmental Assessment: Based on policy layer research

Yinglie ZHOU, Cunkuan BAO,

期刊论文

Study on affecting factors of collaborative product development based on collaboration hierarchy model

ZHANG Xiaodong, LI Yingzi, ZHANG Zhiqiang

期刊论文

Practical evaluation for water utilities in China by using analytic hierarchy process

Hong CHEN,Feng XIAO,Zhe BI,Ping XIAO,Dongsheng WANG,Ming YANG

期刊论文

enthalpy of formation for polycyclic aromatic hydrocarbons predicting from general connectivity based hierarchy

期刊论文

Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic hierarchy

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

期刊论文

Application of fuzzy analytic hierarchy process model on determination of optimized pile-type

Lei MA, Shuilong SHEN, Jinhui ZHANG, Yang HUANG, Feng SHI

期刊论文

Aphanomyces euteiches ——加拿大豌豆生产的严重威胁

Longfei Wu,Kan-Fa Chang,Robert L. Conner,Stephen Strelkov,Rudolph Fredua-Agyeman,Sheau-Fang Hwang,David Feindel

期刊论文

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

期刊论文

长江堤防安全评价的理论 方法和实现策略

李青云,张建民

期刊论文

Evaluating and structuring indicators for wetland assessment

Xuehua LIU, Yan SUN,

期刊论文

Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

期刊论文

An integrated assessment method of urban drainage system: A case study in Shenzhen City, China

DONG Xin, ZENG Siyu, CHEN Jining, ZHAO Dongquan

期刊论文

面向任务信息的层次化存储DPM策略

黄少珉,戚隆宁,杨军,胡晨

期刊论文

RePizer:一种软件需求排序架构

Saif Ur Rehman KHAN,Sai Peck LEE,Mohammad DABBAGH1,Muhammad TAHIR,Muzafar KHAN,Muhammad ARIF

期刊论文

基于项目的路面养护可持续性评价工具 

Yibo Zhang, J.P. Mohsen

期刊论文