期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
Integration degree of tourism industry based on AHP-fuzzy comprehensive evaluation 被引量:3
1
作者 YAN Wei 《Ecological Economy》 2014年第2期172-176,共5页
By reviewing the traditional measure methods of the integration degree of the tourism industry, we concluded that measure methods of the integration degree of the tourism industry can only be limited to the levels of ... By reviewing the traditional measure methods of the integration degree of the tourism industry, we concluded that measure methods of the integration degree of the tourism industry can only be limited to the levels of theoretical analysis due to the defect of the statistical data and the statistical structure. With the help of concept of fusion field and fusion entropy of the tourism industry, a physical model of integration of the tourism industry is established and index system based on AHP is proposed. Using AHP-fuzzy comprehensive evaluation method, the integration degree of Jiangsu and the country's tourism industry are studied. The influencing factors are analyzed and the corresponding countermeasures are proposed. 展开更多
关键词 integration degree tourism industry AHP fuzzy comprehensive evaluation
下载PDF
The Research on System for Green Manufacturing Assessment 被引量:2
2
作者 Qingshan Zhang Wei Xu 《Chinese Business Review》 2005年第4期22-26,共5页
In the 20th century, manufacturing industries created a great amount of wealth for mankind, but they also caused the serious environmental pollution. Therefore, the implementation of green manufacturing will be impera... In the 20th century, manufacturing industries created a great amount of wealth for mankind, but they also caused the serious environmental pollution. Therefore, the implementation of green manufacturing will be imperative for manufacturing industries in the 21st century. The philosophy of sustainable development is necessarily and importantly used in the enterprise survival and progress. So, the green manufacturing prevails in the whole world, which appeals to the research from lots of experts and governments. However, how we can assess the green degree of the product becomes a significant problem to us. From the sustainable development view, it is pointed out in this paper how an enterprise can properly assess the green degree of the green products, which uses different indexes to measure the different influence. 展开更多
关键词 green manufacturing green degree integrated index stage index
下载PDF
Improvement of Ecological Footprint Method and Application in Henan Province
3
作者 Niu Shuhai, Jin Fengjun & Liu Yi Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101, China 《Chinese Journal of Population,Resources and Environment》 北大核心 2005年第1期44-48,共5页
The measure of sustainable development has always been an important and difficulty subject, and the major evaluation model has three types: indicators based on system theory and methods, indicators relied on economic ... The measure of sustainable development has always been an important and difficulty subject, and the major evaluation model has three types: indicators based on system theory and methods, indicators relied on economic valuation of the environment, sustainability indicators including biophysical assessments. The ecological footprint analysis initiated by William E. Rees, one of the indicators including biophysical assessments, gets rid of the defects of the other models. Ecological footprint has gradually become popular on account of the measuring indexes based on scientific theory, innovative thought-way and its wide adaptability. This paper introduces the conception and computation method, making a progress and making up for the method of ecological footprint, and finally, makes an application analyses through Henan province regional sustainable development. 展开更多
关键词 sustainable development ecological footprint input/occupancy-output model integrated development degree
下载PDF
Theory of truth degrees of formulas in Lukasiewicz n-valued propositional logic and a limit theorem 被引量:30
4
作者 LI Bijing WANG Guojun 《Science in China(Series F)》 2005年第6期727-736,共10页
The concept of truth degrees of formulas in Lukasiewicz n-valued propositional logic Ln is proposed. A limit theorem is obtained, which says that the truth function τ-n induced by truth degrees converges to the integ... The concept of truth degrees of formulas in Lukasiewicz n-valued propositional logic Ln is proposed. A limit theorem is obtained, which says that the truth function τ-n induced by truth degrees converges to the integrated truth function τ when n converges to infinite. Hence this limit theorem builds a bridge between the discrete valued Lukasiewicz logic and the continuous valued Lukasiewicz logic. Moreover, the results obtained in the present paper is a natural generalization of the corresponding results obtained in two-valued propositional logic. 展开更多
关键词 Lukasiewicz n-valued propositional logic truth degree limit theorem integrated truth degree
原文传递
Robust Stabilizing Regions of Fractional-order PI~λ Controllers for Fractional-order Systems with Time-delays 被引量:1
5
作者 Zhe Gao Li-Rong Zhai Yan-Dong Liu 《International Journal of Automation and computing》 EI CSCD 2017年第3期340-349,共10页
This study focuses on a graphical approach to determine the robust stabilizing regions of fractional-order PIλ(proportional integration) controllers for fractional-order systems with time-delays. By D-decomposition... This study focuses on a graphical approach to determine the robust stabilizing regions of fractional-order PIλ(proportional integration) controllers for fractional-order systems with time-delays. By D-decomposition technique, the existence conditions and calculating method of the real root boundary(RRB) curves, complex root boundary(CRB) curves and infinite root boundary(IRB)lines are investigated for a given stability degree. The robust stabilizing regions in terms of the RRB curves, CRB curves and IRB lines are identified by the proposed criteria in this paper. Finally, two illustrative examples are given to verify the effectiveness of this graphical approach for different stability degrees. 展开更多
关键词 Fractional-order systems time-delays PIλ (proportional integration) controllers stabilizing regions stability degree
原文传递
SOLVABILITY FOR FRACTIONAL FUNCTIONAL DIFFERENTIAL EQUATION BOUNDARY VALUE PROBLEMS AT RESONANCE
6
作者 Xiangkui Zhao Fengjiao An Shasha Guo 《Annals of Applied Mathematics》 2016年第3期322-330,共9页
The paper deals a fractional functional boundary value problems with integral boundary conditions. Besed on the coincidence degree theory, some existence criteria of solutions at resonance are established.
关键词 fractional boundary value problem at resonance coincidence degree theory integral boundary conditions
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部