层次分析法在清水河健康评估体系建立中的应用

为维护清水河的健康和可持续发展,需要对清水河的健康进行有效评价,从而为清水河的管理与改善提供科学可靠的理论依据和技术支撑。据此需要建立清水河健康评价指标体系,该体系分为3级体系,5个方面,16个具体指标,基于层次分析法的目的是最大程度减小人为因素引起的指标权重偏离。根据指标对应状态是否需要人工干预将评价结果分为理想状况、健康、亚健康、不健康、病态这个五个状态,评价结果表明清水河的总体健康水平处于健康状况需要继续保持其可持续利用。

层次分析-模糊综合评估法在化工园区安全评价中的应用

伴随着世界经济全球化趋势的快速发展,我国化学工业产业的生存竞争压力不断增大,生产过程中各种安全事故也频频发生,要想实现化学工业产业的健康发展,就要重视产业的安全评价,通过构建安全评价体系,来对产业发展的前景以及安全性进行评估,为化学工业产业的发展提出建设性的意见,提高化学工业产业的发展水平。本文以层次分析—模糊综合评估法为研究对象,探究该评估法在化学园区安全评价中的实际应用,以此提高化学工业产业发展的安全性,降低意外事故的发生率,实现产业安全发展。

基于层次分析法和模糊理论的液氨泄漏风险研究

采用层次模糊数学理论评价法对液氨企业进行定性和定量的风险评估,从员工的不安全行为、设备设施的不安全状态、安全管理的缺陷、不良的作业环境4个方面构建液氨泄漏事故原因的阶级层结构模型,研究分析事件发生泄漏原因的影响水平,并进行综合性的评判.以液氨使用企业为例,运用该模型可分析出不同企业的安全优劣等级和共同存在的泄漏风险特征.提出应完善企业法律法规定性指标检测的方法、提升员工的专业知识和技术水平、强化生产工艺系统和储罐系统定期与不定期安全检查的力度、建立设备的维修及更新淘汰机制、加强人工智能化检测的建设实现人与科技的双控防范的措施.

基于层次分析的网络备自投方案评估

适用于链式结构电网的网络备自投系统存在不同的实现方案。提出一种针对不同网络备自投方案进行综合评估的方法。该方法首先针对评价指标建立层次化结构,然后确定权重系数,最后得到总体评估结果。针对南通地区电网的实例分析,说明了该方法可以对网络备自投的方案进行综合评估,可以为企业管理人员提供网络备自投技术方案选择方面的决策支持。

层次分析法(AHP)在培训效果评估中的应用

本文针对培训效果评估问题,提出了岗位能力提升度的概念和计算方法,利用层次分析评价模型,得到了不同岗位对企业价值贡献度的度量,并用于培训效果的评估。最后对某电力公司的继电保护培训进行了实证评估分析,得到的结论符合实际情况。该方法有一定的可操作性,结论可信,有一定的应用价值。

基于BIM+AHP的地铁火灾疏散与救援联动机制

地铁作为现代化程度的重要标志,对促进城市繁荣稳定和社会发展有着深远影响,但由于其建筑结构复杂、出入口少、疏散路线长、人员密集等因素,地铁火灾隐患大。因此,研究地铁火灾疏散与救援联动机制具有不小意义。本文以南宁朝阳广场为例,对地铁火灾疏散与救援联动机制的整体布置进行了阐述,分析了基于BIM平台的地铁火灾应急管理系统,并利用AHP(层次分析法)形成了应急方案的评估体系。结果表明:BIM+AHP的应用对地铁火灾疏散与救援联动机制的完善发展具有实际意义,能够实现下消防救援的信息化、科学化。

精准扶贫背景下公共品供给效率的AHP评价

精准扶贫改变了贫困村公共品供给的来源和供给方式,对公共品供给效率的评价提出了新的要求。以中共中央、国务院发布的《关于打赢脱贫攻坚战的决定》中有关公共品供给政策为依据,提出了精准扶贫背景下公共品供给效率的评价指标体系,并用层次分析法(AHP)进行客观评价。AHP模型中的指标权重采用文本数据挖掘的方法获得,克服了AHP模型中判断矩阵主观赋权的缺陷。

A personalized trustworthy service selection method

A personalized trustworthy service selection method is proposed to fully express the features of trust, emphasize the importance of user preference and improve the trustworthiness of service selection. The trustworthiness of web service is defined as customized multi-dimensional trust metrics and the user preference is embodied in the weight of each trust metric. A service selection method combining AHP （analytic hierarchy process） and PROMETHEE （preference ranking organization method for enrichment evaluations） is proposed. AHP is used to determine the weights of trust metrics according to users＇ preferences. Hierarchy and pairwise comparison matrices are constructed. The weights of trust metrics are derived from the highest eigenvalue and eigenvector of the matrix. to obtain the final rank of candidate services. The preference functions are defined according to the inherent characteristics of the trust metrics and net outranking flows are calculated. Experimental results show that the proposed method can effectively express users＇ personalized preferences for trust metrics, and the trustworthiness of service ranking and selection is efficiently improved.

Application of fuzzy analytic hierarchy process and neural network in power transformer risk assessment

In operation,risk arising from power transformer faults is of much uncertainty and complicacy.To timely and objectively control the risks,a transformer risk assessment method based on fuzzy analytic hierarchy process(FAHP) and artificial neural network(ANN) from the perspective of accuracy and quickness is proposed.An analytic hierarchy process model for the transformer risk assessment is built by analysis of the risk factors affecting the transformer risk level and the weight relation of each risk factor in transformer risk calculation is analyzed by application of fuzzy consistency judgment matrix;with utilization of adaptive ability and nonlinear mapping ability of the ANN,the risk factors with large weights are used as input of neutral network,and thus intelligent quantitative assessment of transformer risk is realized.The simulation result shows that the proposed method increases the speed and accuracy of the risk assessment and can provide feasible decision basis for the transformer risk management and maintenance decisions.

AHP-FCE Based Physical Exercise Risk Evaluation Model

Exercise is a highly proven and beneficial health promotion modality, But it is very difficult to determine whether the person during exercise is safe. A unique and comprehensive approach is proposed to perform physical exercise risk evaluation （PERE）, in which personalized factors are deterrrdned basing on grey correlation analysis, analytic hierarchy process （AHP） method is used to structure the large numbers of risk factors, and fuzzy comprehensive evaluation （FCE） is applied to fuzzify the factors and compute the exercise risk level. Finally, an actual calculation example is used to verify the feasibility of the method.

Ecological and Economic System Health Assessment Based on Fuzzy Set Pair Analysis:A Case Study of Northwest Region,China

Due to the increasingly serious environmental pollution and destruction,especially humans' unreasonable activities,the ecological and economic system(EES) issues of Northwest region in China have attracted more and more attention of the researchers.Aiming at evaluating its ecological and economic system health,a multi-objective evaluation framework called PressureState-Response(PSR) was established to describe the ecological and economic health situations.Meanwhile,an integrative set pair model combining set pair analysis(SPA) and fuzzy analytic hierarchy process(FAHP) was proposed to assess the ecological and economic system.Then the EES status of five northwest provinces(Shanxi,Gansu,Qinghai,Ningxia and Xinjiang) of Northwest region in China was evaluated during 1985 to 2009.The EES development trends of five provinces are obtained.In general,the health values of five provinces showed a rising trend.The health values of five provinces grew rapidly during 1985 to 2000.After 2000,the health values of five provinces still followed the present growth trend,but the growth is relatively smooth.The results show that the method proposed is effective for assessing the health of ecological and economic system.

青岛海湾大桥耐久性评估指标及方法

大型海湾桥梁在全寿命服役过程中,受到恶劣环境因素的长久作用,会发生混凝土劣化与钢筋锈蚀、索构件防护失效与钢丝锈蚀、钢箱梁涂层劣化、锈蚀与裂纹等。为确保大桥的正常运营,降低全寿命周期养护费用,有必要采取先进的监检测手段对关键的耐久性指标进行跟踪,并采用合理和科学的方法对桥梁结构的耐久性能进行评估。本文重点讨论了海湾大桥需要重点关注的耐久性评估指标及其评估方法,并给出了其在大沽河航道桥中的应用。

Sustainability Assessment and Ranking of Run of the River(RoR) Hydropower Projects Using Analytical Hierarchy Process(AHP):A Study from Western Himalayan Region of India

In the present scenario,tapping the unutilised hydropower potential is one of the highest priorities in developing countries of the world.Special emphasis is being imparted to run of the river(RoR)mode of power generation.However,the governments are now facing the dilemma whether to promote small hydropower projects(SHPs) or encourage large hydropower projects(LHPs).RoR large hydropower projects result into large scale cutting of mountains for constructing tunnels and access roads,generation of huge quantity of muck and large scale impact on flora and fauna due to diversion of rivers/streams.On the other hand,though SHPs are claimed to be greener and more sustainable by a section of researchers and energy planners but,they will be required to be set up in large number to generate equivalent amount of electricity.The aim of this study is to rank the most sustainable installed capacity range of RoR hydropower projects.To achieve this aim,the study proposes the use of quite popular multi-criteria decision making(MCDM)method of Operation Research named Analytical Hierarchy Process.A case study has been presented from Himachal Pradesh,a hydro rich state located in the western Himalayan region.As per sustainability assessment carried out in this study,hydropower projects in the capacity range 1 to 5 MW have been ranked to be the most sustainable.

Risk assessments of debris flow based on improved analytic hierarchy process and efficacy coefficient method

In order to evaluate the danger of debris flow properly, eight factors were selected as the risk assess- ment indexes of the debris flow, namely the vertical slope, valley relative difference, hillside slope, area of ba- sin, loose solid material reserves, the path length of sediment supply probability, silting and scouring derrieking and vegetation coverage. The improved Analytic Hierarchy Process （ AHP ） method was used to obtain the weights of the factors; and the efficacy coefficient method was adopted to evaluate the risks of six typical debris flow gullies. According to the research, the improved AHP method not only avoids the subjectivity in the indi- vidual factor valuation by comparing two factors of each layer, but also makes the subsequent consistency check unnecessary.

Studies on the Weight Algorithm on Seafarers＇ Competence Assessment Index

The purpose for seafarers＇ competence assessment is to evaluate the practical operational ability of the applicants and the weight of the index directly influences the accuracy of the assessment results. This paper takes the assessment of route making as an example, makes use of the analytic hierarchy process in determining the weight of the indexes to provide theoretical reference for the perfection of seafarers＇ competence assessment.

A Ship Officer Performance Evaluation Model Using Fuzzy-AHP

A ship＇s crew plays an important role in the maritime transportation sector and their performance is paramont in the shipping industry. On this account, an impartial evaluation of the crew＇s performance is an important issue. In this paper, the ship officer＇s performance evaluation problem is studied. The performance evaluation criteria that shipping companies take into account are determined and a performance evaluation process is modelled by using the FAHP （Fuzzy Analytic Hierarchy Process） based on Chang＇s Algorithm. Linguistic variables and fuzzy numbers are used in the assessment process. The results of the proposed model demonstrate that the FAHP method is effective and helps managers make better and more reliable decisions under fuzzy circumstances.

The FAHP-based Risk Assessment in the Conclusion of Equipment Procurement Contract

The risk assessment of contract conclusion is the primary and key part of equipment purchase contract risk management. In this paper, based on the fuzzy characteristics of contract risks, and overcoming the traditional disadvantages of analytic hierarchy process （AHP）, the fuzzy analytic hierarchy process （FAHP） of contract conclusion is proposed for meeting the actual need of equipment procurement contract risk assessment, and implementing the risk factors qualitative and quantitative assessments of different working nodes in contract conclusion. Thus, a scientific and reliable important basis is provided for the risk management of equipment procurement contract.

The Implementation Effects of a Nationwide Sloping Farmland Soil Erosion Control Project in China

To understand implementation of a nationwide sloping farmland soil erosion comprehensive control project during China＇s 12 th Five-Year Plan we used data collection and expert consultation. We selected 24 indexes across three aspects including project management, engineering construction and implementation benefit and used AHP-grey correlation analysis methods. We found that the scores for engineering construction were greater than 0.65 in most of the provinces, autonomous regions and municipalities. These scores are high and scores for project management and implementation benefit are between 0.45–0.65; however, overall scores are low. The comprehensive evaluation results are normally distributed. The composite scores for Sichuan, Yunnan and Guizhou are 0.71, 0.68 and 0.68 respectively, indicating that the implementation effects are good. The scores for Jilin and Liaoning are 0.38 and 0.42 respectively, indicating that the implementation effects need improvement. Scores for other provinces are between 0.45–0.65 and the effects are medium. The evaluation results show certain zonal rules spatially and the implementation effect in karst regions of Southwest China is the highest, followed by the purple soil region in Southwest China, Loess Plateau region of Northwest China, earth-rock mountain region of North China and red soil hilly region of South China. The implementation effect in the black soil region of Northeast China suggests that improvement is needed in this region.