期刊文献+
共找到3,419篇文章
< 1 2 171 >
每页显示 20 50 100
Application of Matter Element Analysis Theory for Blasting Classification of Rock
1
作者 程康 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2001年第2期51-53,共3页
The grading criterion of blasting classification, evaluating indexand the characteristic value are taken as matter elements. first, therelational function is constructed according to the gradingcriterion, and then, th... The grading criterion of blasting classification, evaluating indexand the characteristic value are taken as matter elements. first, therelational function is constructed according to the gradingcriterion, and then, the grade of rock blasting is evaluated by thecomprehensive relational degree. The author has presented a systemmethod of blasting classification of rock. The practical exampleproves that it is simple in calculation and reasonable in evaluation. 展开更多
关键词 blasting classification of rosk matter element analysis relationalfunction
下载PDF
The evaluation of ecosystem health in mining areas on the matter element method 被引量:2
2
作者 LI Xin-ju LIU Xue-ran +2 位作者 LU Yan-yan GUO Shuo-li WANG Mei 《Journal of Coal Science & Engineering(China)》 2011年第2期176-180,共5页
关键词 生态系统健康评价 矿区 元素 可持续发展 指标体系 评价标准 计算功能 生态良好
下载PDF
Study on Tourist Carrying Capacity Based on Matter Element Analysis 被引量:12
3
作者 LiuYunguo FanTing LiXin ZhouMing WangXianhai 《Ecological Economy》 2005年第2期23-27,共5页
This paper proposes that it is necessary to implement the concept of tourist carrying capacity to facilitate the tourism planning, and presents a method to evaluate the carrying capacity. The method called matter elem... This paper proposes that it is necessary to implement the concept of tourist carrying capacity to facilitate the tourism planning, and presents a method to evaluate the carrying capacity. The method called matter element analysis can solve the uncertain and incompatible problem of the evaluated factors in assessing carrying capacity.The current state of a destination's carrying capacity can be determined by establishing the standard indexes and the matter element model. Through the evaluating of the travel industry zones of the Autonomous Prefecture of Western Hunan, the method is proved to be simple and feasible, and it is improved to be significant for the tourism planning and determination as well as the sustainable development of the regional tourism. 展开更多
关键词 物元分析理论 旅游承载能力 旅游开发 旅游计划
下载PDF
Applying Fuzzy Matter-Element Model Based on AHP to Evaluating Bids of Water Saving Irrigation Project 被引量:4
4
作者 PANFeng FUQiang +1 位作者 LIANGChuan LIUDong 《Journal of Northeast Agricultural University(English Edition)》 CAS 2003年第2期147-151,共5页
Owing to overcoming the characteristics that there are many economic and technical indexes which are fuzzy and incompatibility to each other in evaluating investment project,a new method is proposed.The method is base... Owing to overcoming the characteristics that there are many economic and technical indexes which are fuzzy and incompatibility to each other in evaluating investment project,a new method is proposed.The method is based on the matter-element analysis and combined with the concepts of fuzzy mathematics,which is called the method of fuzzy matter-element analysis.It constructs the compound fuzzy matter element with the investment projects,evaluation factors and their fuzzy value.Through establishing the best subjection degree (fuzzy value),complex fuzzy matter element of relational coefficient and weight aggregation of fuzzy matter-element model,the writer achieves on optimum order of the investment projects according to the calculated relational degree and finds the best project.In this paper,the calculation of weight adopts the analytical hierarchy process method(AHP).Through the actual example,it shows that the model is simple and its calculation is reliable.It is very significant for the engineering evaluated bid and investment decision. 展开更多
关键词 fuzzy matter element water saving irrigation evaluating bid AHP relational degree
下载PDF
Application test of matter element analysis in earthquake forecast 被引量:1
5
作者 LI HUA FENG Department of Geography, Zhejiang Normal University, Jinhua 321004, China 《Acta Seismologica Sinica(English Edition)》 CSCD 1998年第6期89-94,共6页
Calculation by means of the previous indices of the seismic activity can have the matter element analysis possess the forecast function. Readjusting repeatedly the grade limit value of every index can maximize the his... Calculation by means of the previous indices of the seismic activity can have the matter element analysis possess the forecast function. Readjusting repeatedly the grade limit value of every index can maximize the historical fitting ratio of the calculated and actual grade of the annual maximum magnitude, whose result is relatively ideal. 展开更多
关键词 correlation function matter element analysis annual maximum magnitude earthquake forecast
下载PDF
Structure regulation of land use and landscape pattern changes based on matter element analysis in a small watershed in Sichuan,China
6
作者 Junhua CHEN Changlong MU +5 位作者 Xiuming CHEN Chenghua XIANG Chengrong LUO Huabai HAN Guoxian CHEN Yanjun DU 《Frontiers in Biology》 CSCD 2008年第3期360-366,共7页
The agricultural land suitability assessment based on the natural characteristics of land blocks is traditionally the basis for agricultural and/or land use planning.The assessment,however,is static and cannot be inco... The agricultural land suitability assessment based on the natural characteristics of land blocks is traditionally the basis for agricultural and/or land use planning.The assessment,however,is static and cannot be incorporated with potential land use changes.Recently,a dynamic approach,i.e.,matter element analysis,has been effectively applied for land use planning.In the present study,based on matter element analysis,we estab-lished a matter element analysis model for land use suitability assessment using the suitability grade of land use,evaluation indicators and their characteristic values as matter elements,and also using sutra field,controlled field,weight value and correlation degree from field survey,as well as an expert system.This model was applied to the structure regulation of the land use in the small Yuejiagou watershed of the Langzhong Municipality in Sichuan Province,China.Results show that the proportion among agriculture,forestry and animal husbandry tended to rationalize land use.The economic and eco-logical indices of the lands were increased from 1529.8 to 1719.99 and from 1460.94 to 1758.21 after the regulation,respectively.The regulation also caused changes in landscape patterns as follows:The indices of diversity and evenness were increased from 1.3028 to 2.0920 and from 0.6108 to 0.8463,or by 60.58%and 38.56%,respectively.However,the indices of dominance and contagion were decreased from 0.6431 to 0.2106 and from 0.7467 to 0.7125,respectively.This indicated that the land use in the small watershed was rational.The spatial distribution of patches tended to be uniform.The patch congregation was gradually dispersed.This study verified that the matter element analysis approach can not only overcome the factitious influences and improve the precision of land assessment,but also can be used for the structure regu-lation of specific patches. 展开更多
关键词 matter element analysis land use structure regulation landscape pattern GIS small watershed
原文传递
Evaluation model of venture investment based on fuzzy matter-element method of combined weight 被引量:5
7
作者 Meng Lin1 Bao Guangping2 Sun Yutao1(1 Department of Economics, Dalian University of Technology, Dalian 116024, China)(2 Finance and Taxation School, Northeast Finance and Economy University, Dalian 116025, China) 《Journal of Southeast University(English Edition)》 EI CAS 2008年第S1期27-32,共6页
An evaluation model of an international venture investment project on the basis of fuzzy matter-element and combined weight methods is introduced. First, the compound fuzzy matter-element of optimal subordinate degree... An evaluation model of an international venture investment project on the basis of fuzzy matter-element and combined weight methods is introduced. First, the compound fuzzy matter-element of optimal subordinate degree is constructed on the principle of the bigger-more-optimal or the less-more-optimal depending on the actual evaluation indicators, and combined with standard fuzzy matter-element to form a difference-square fuzzy matter-element. Secondly, a combined weight is calculated by both information entropy and the expert grading method. Finally, the compound fuzzy matter-element of Euclidian approach degree by M(·,+)method is constituted and used to classify venture investment projects. Based on the model above, six venture investment projects in a company are evaluated, and the results show that the projects are all good, which is demonstrated by the good income of the projects. Therefore, the coincidence of evaluation results and actual operation status indicates that the model is of great value in practical application. 展开更多
关键词 combined weights fuzzy matter-element venture investment
下载PDF
Application of Matter-element Model in Soil Nutrient Evaluation of Ecological Fragile Region 被引量:2
8
作者 TANG Jie WANG Chenye LIN Nianfeng LI Zhaoyang LI Haiyi MAO Zilong 《Chinese Geographical Science》 SCIE CSCD 2009年第2期168-176,共9页
On the basis of the soil environment investigation in Da′an City, Jilin Province, China, 40 soil samples from main land use types were obtained and tested by standard method. Soil organic matter (SOM), total N (TN), ... On the basis of the soil environment investigation in Da′an City, Jilin Province, China, 40 soil samples from main land use types were obtained and tested by standard method. Soil organic matter (SOM), total N (TN), total P (TP), total K (TK), available N (AN), available P (AP) and available K (AK) were chosen as the evaluation factors. A regional soil nutrient evaluation model was developed based on the matter-element model. The results show that the soil samples with nutrient grade Ⅱ–Ⅴ respectively account for 10%, 30%, 32.5% and 27.5%, and those with grade Ⅳ and Ⅴ account for 60% in all samples. The relationship between soil nutrients and land types indicates that the nutrients of farmland are relatively good, with 41.7% of soil samples with the nutrient grade Ⅳ and Ⅴ. The nutrients of saline-alkali land and sandy land are the worst, with 100% of soil samples with the nutrient grade Ⅳ and Ⅴ. And the ratios of soil samples grade Ⅳ and Ⅴ in grassland and wasteland are respectively 62.5 % and 54.55%. Generally speaking, the soil nutrients status in Da′an City is poor, 60% of soil samples are in poor and extremely poor conditions, indicating that the soil has been severely eroded. Being a relatively superior evaluation method with more accurate re- sults and spatial distribution consistency, matter-element analysis is more suitable for regional soil nutrient evaluation than previous models. 展开更多
关键词 土壤样品 养分评价 物元模型 生态脆弱区 土壤养分状况 应用 土地利用类型 土壤有机质
下载PDF
Evaluation on Urban Land Ecological Security Based on the PSR Model and Matter-Element Analysis: A Case Study of Zhuhai, Guangdong, China 被引量:4
9
作者 LI Shuang 《Journal of Landscape Research》 2019年第3期82-88,92,共8页
As one of the Special Economic Zones since the reform and opening up, Zhuhai has developed during the past 30 years. Its economic development, industrial structure and ecological environment have undergone great chang... As one of the Special Economic Zones since the reform and opening up, Zhuhai has developed during the past 30 years. Its economic development, industrial structure and ecological environment have undergone great changes. Research on changes in Zhuhai’s land ecological security is of great significance. Using relevant data from 2007-2012, this study established a land ecological security assessment system based on the PSR conceptual framework model. The system contained 18 indicators from 3 aspects according to the concrete features of Zhuhai. Then we used the matterelement analysis and the improved entropy weight to analyze and evaluate the land ecological security of Zhuhai. The results showed that: from 2007 to 2012, the levels of the land ecological security of Zhuhai were “secure”, and the value increased year by year;as the land ecological security response value increased, Zhuhai was capable of solving land ecosystem problems. However, it should be noted that the structure of land ecosystem in Zhuhai has not formed and that rapid expansion of construction land has caused the shortage of cultivated land and other issues. Measures should be taken to control the construction area, improve land intensive utilization and improve the land ecological security. 展开更多
关键词 Land ECOLOGICAL security PSR model matter-element analysis Improved ENTROPY WEIGHT Zhuhai
下载PDF
Evaluation of the Strategic Tolerance Human Resource Management Based on Matter-Element Analysis Method 被引量:2
10
作者 高宏 《Journal of Donghua University(English Edition)》 EI CAS 2011年第5期533-538,共6页
The main features and connotation of the tolerance human resource management based on strategy are analyzed and summarized.The theory and method of systematic engineering is used to build the evaluation index systems ... The main features and connotation of the tolerance human resource management based on strategy are analyzed and summarized.The theory and method of systematic engineering is used to build the evaluation index systems for the tolerance human resource management.On the basis of it,by using the theory of matter-element analysis,the matter-element models are formulated for the evaluation of the tolerance human resource management.Regarding annual tolerance human resource management as the object of matter-element,the tolerance human resource management for two years are analyzed and evaluated through using the matter-element models proposed.A case study is carried out and the satisfactory results are obtained.A new scientific method is provided for the evaluation of human resource management based on strategy. 展开更多
关键词 事元素分析 策略 忍耐人资源管理 评估 公平 分享
下载PDF
Health Effects of Airborne Particulate Matter Trace Elements 被引量:2
11
作者 XIANG GAO QI YU LI-MIN CHEN 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2005年第5期349-355,共7页
The effects of airborne particulate matter (PM) trace elements on health are widely concerned nowadays. Many achievements have been made while many unknowns exist. This article reports the recent research progresses... The effects of airborne particulate matter (PM) trace elements on health are widely concerned nowadays. Many achievements have been made while many unknowns exist. This article reports the recent research progresses, describes the effects of exposure to PM trace elements on health epidemiological evidence, toxicology findings, and raises some questions for future studies. 展开更多
关键词 Health effect Particulate matter Trace element
下载PDF
Matter-elements model and application for prediction of ccoal and gas outburst 被引量:1
12
作者 PENG Shou-jian XU Jiang TAO Yun-qi CHENG Ming-jun 《Journal of Coal Science & Engineering(China)》 2009年第3期273-277,共5页
The theory and method of extenics were applied to establish classical field matterelements and segment field matter elements for coal and gas outburst.A matter-element model for prediction was established based on fiv... The theory and method of extenics were applied to establish classical field matterelements and segment field matter elements for coal and gas outburst.A matter-element model for prediction was established based on five matter-elements,which includedgas pressure,types of coal damage,coal rigidity,initial speed of methane diffusionand in-situ stress.Each index weight was given fairly and quickly through the improvedanalytic hierarchy process,which need not carry on consistency checks,so accuracy ofassessment can be improved. 展开更多
关键词 煤与瓦斯突出 物元模型 预测 应用 改进层次分析法 一致性检查 气体压力 初始速度
下载PDF
Carrying capacity of water environment in public tourism resources based on matter-element model 被引量:6
13
作者 XU Zi-lin YAN Wei 《Ecological Economy》 2016年第3期296-300,共5页
When water environmental carrying capacity of public resource tourist attraction is studied, the two action subjects of tourists and local residents should be discussed, and comprehensive consideration must be given t... When water environmental carrying capacity of public resource tourist attraction is studied, the two action subjects of tourists and local residents should be discussed, and comprehensive consideration must be given to the influence of these two on water environment. On the basis of water resource carrying capacity and water quality carrying capacity, water environmental carrying capacity index of public resource tourist attraction was constructed, the model for the water environmental carrying capacity of public resource tourist attraction was established on the basis of matter-element model and analytical hierarchy process. By applying this method, water environmental carrying capacity situation of a certain public resource tourist attraction can be gained, moreover, situations about several aspects of water environmental carrying capacity can be evaluated. 展开更多
关键词 matter-element model public tourism resources water environmental carrying capacity
下载PDF
Application of matter-element analysis based on entropy right to evaluate the pavement condition in permafrost region 被引量:1
14
作者 KeZhen Yan JinZhao Zhang Lin Feng 《Research in Cold and Arid Regions》 2009年第6期519-522,共4页
Evaluation of pavement performance is one of the most important issues in a pavement-management system.By employing the concept of entropy,the matter-element model for evaluating pavement is established,and the weight... Evaluation of pavement performance is one of the most important issues in a pavement-management system.By employing the concept of entropy,the matter-element model for evaluating pavement is established,and the weights of the evaluation indices are obtained from sur-veying data.By calculating the degree of dependence of the matter-element model,the pavement performance evaluation can be obtained by this method.The results show that the matter-element model based on entropy right has good performance for evaluating the pavement condition in permafrost region. 展开更多
关键词 pavement evaluation ENTROPY matter-element model PAVEMENT
下载PDF
Integrated Evaluation of Air Traffic Controller Workload Based on Matter-Element Analysis 被引量:1
15
作者 张明 韩松臣 《Journal of Southwest Jiaotong University(English Edition)》 2008年第2期164-169,共6页
A model for evaluating the controller workload was presented based on matter-element analysis, particularly from a mansystem engineering perspective. On the basis of a questionnaire survey, 18 kinds of indexes which i... A model for evaluating the controller workload was presented based on matter-element analysis, particularly from a mansystem engineering perspective. On the basis of a questionnaire survey, 18 kinds of indexes which influence the controller workload were determined. By establishing the classical field and node field of the controller workload, the correlation function of the controller workload grade was obtained; then the correlation degree and estimated grade of controller workload were given. A case study verifies the feasibility of the proposed evaluation method. 展开更多
关键词 Air traffic control Controller workload matter-element analysis EXTENICS CORRELATION
下载PDF
River Health Assessment Based on Fuzzy Matter-element Model
16
作者 ZHANG You,LIU Ling,YAN Feng State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing,210098,China 《Meteorological and Environmental Research》 CAS 2011年第10期1-4,共4页
[Objective] The study aimed to assess the health state of rivers by using fuzzy matter-element model.[Method] Based on fuzzy matter-element analysis theory,the assessment model of river health was established,then a m... [Objective] The study aimed to assess the health state of rivers by using fuzzy matter-element model.[Method] Based on fuzzy matter-element analysis theory,the assessment model of river health was established,then a modified method to calculate the superior subordinate degree was put forward according to Hamming distance.Afterwards,a multi-level evaluation model,which contained the assessment indicators about hydrological features,ecological characteristics,environmental traits and service function,was set up based on this method above.Finally,the model was applied in the health assessment of Qinhuai River.[Result] The health state of Qinhuai River was at medium level.This assessment result was consistent with that of comprehensive index method,and it showed that the multi-level fuzzy matter-element model was effective in the assessment of river health.[Conclusion] The research provided an effective method to evaluate the state of river health. 展开更多
关键词 Fuzzy matter-element m odel River health ASSESSMENT China
下载PDF
Optimizing selection of bridge raft based on fuzzy matter-element model and combination weighting
17
作者 Li Feng Shao Fei +1 位作者 Wang Jianping Li Zhigang 《Engineering Sciences》 EI 2012年第1期61-64,96,共5页
It's a necessary selection to support the maneuver across Yangtze River by floating bridge constructed by portable steel bridge and civilian ships.It is a comprehensive index for the scheme of bridge raft,containi... It's a necessary selection to support the maneuver across Yangtze River by floating bridge constructed by portable steel bridge and civilian ships.It is a comprehensive index for the scheme of bridge raft,containing a variety of technical factors and uncertainties.The optimization is the selection in the constructing time,quantity of equipments and man power.Based on the calculation result of bridge rafts,an evaluating system is established,consisting of index of spacing between interior bays,raft length,truss numbers,operation difficulty and maximal bending stress.A fuzzy matter element model of optimizing selection of bridge rafts was built up by combining quantitative analysis with qualitative analysis.The method of combination weighting was used to calculate the value of weights index to reduce the subjective randomness.The sequence of schemes and the optimization result were gained finally based on euclid approach degree.The application result shows that it is simple and practical. 展开更多
关键词 模糊物元模型 优化选择 组合权重 桥梁 计算结果 欧氏贴近度 船舶建造 综合指数
下载PDF
Evaluation of Social Environment Impact of Highway Construction Using Gray Matter-Element Information Entropy Model
18
作者 C.K. Hu 《Journal of Environmental Science and Engineering》 2011年第12期1688-1694,共7页
关键词 公路建设项目 社会环境 灰色物元 熵模型 元信息 影响评价 沈大高速公路 成渝高速公路
下载PDF
Application of Improved Matter-element Extension Method in Comprehensive Assessment of Shallow Groundwater
19
作者 HUANG Yaoyi SU Jianyun CHEN Wencheng 《Journal of Landscape Research》 2016年第4期16-20,26,共6页
Taking shallow groundwater in Jinjiang City,Fujian Province for example,it was found that the classical element-matter analysis shows deficiency in calculation of correlation function,so the improved matter-element me... Taking shallow groundwater in Jinjiang City,Fujian Province for example,it was found that the classical element-matter analysis shows deficiency in calculation of correlation function,so the improved matter-element method was applied for the comprehensive assessment of shallow groundwater in Jinjiang City,and the spatial distribution was shown in maps.The assessment results demonstrated that ground water quality of most regions in the study area belonged to Grade I and II,thus the overall quality of shallow groundwater was good.The groundwater of Grade IV and V(relatively poor and extremely poor) was mainly distributed in Dongshi Town,Chendi Town,Zimao Town,and Shenhu Town,major exceeding-standard factors that influence shallow groundwater quality in the local area included TDS,Mn^(2+),NO_3,NO_2,NH_4^+ and Cl^-,which mainly owed to invasion of seawater,original geological conditions,industrial and agricultural discharge,and human life. 展开更多
关键词 Improved matter-element analysis Correlation degree Shallow groundwater Comprehensive assessment
下载PDF
Expert Anti-Evaluation Model Based on Matter-Element Analysis in Fund Project Peer-Review System
20
作者 Haifeng Li Yanzhong Dang 《Intelligent Information Management》 2010年第3期227-231,共5页
The article analyses several key issues which restrict the effectiveness of fund project peer review work. It analyses the evaluating theory and matter-element theory to access the expert anti-evaluation model, and al... The article analyses several key issues which restrict the effectiveness of fund project peer review work. It analyses the evaluating theory and matter-element theory to access the expert anti-evaluation model, and also studies the expert anti-evaluation index system to support the anti-evaluation method. The practical basis is the true score data of the experts which is collected from the actual anti-evaluation in Liaoning province science and technology fund project peer review system. With the practical experience of the actual project, we prove that the expert index system anti-evaluation model and expert anti-evaluation method can improve the fund project peer review work and play a positive role for the peer review work and also make the review work more scientific and more rational. 展开更多
关键词 Anti-Evaluation Model matter-element Analysis Index SYSTEM Comprehensive Evaluation PEER Review
下载PDF
上一页 1 2 171 下一页 到第
使用帮助 返回顶部