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黑龙江省区域开放度指标体系的构建及测算 被引量:5
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作者 李朝洪 董晓梅 《商业经济》 2010年第12期10-12,共3页
从对外开放和对内开放两方面构建黑龙江省区域开放度的指标体系,并采用灰色关联分析分别测算出黑龙江省13个市区的对外开放度和对内开放度,最终得到区域开放度:区域开放水平高的地区仅哈尔滨1个地区,但其对外开放水平低,应该加大对外开... 从对外开放和对内开放两方面构建黑龙江省区域开放度的指标体系,并采用灰色关联分析分别测算出黑龙江省13个市区的对外开放度和对内开放度,最终得到区域开放度:区域开放水平高的地区仅哈尔滨1个地区,但其对外开放水平低,应该加大对外开放的力度;区域开放水平中的地区有牡丹江、黑河2个地区,其对外开放水平都较高,但对内开放水平较低,这两个城市都应该加大对内开放的力度;其他10个地区均属于区域开放水平低的地区,地区之间的差距不大,并且这10个地区除了绥化市对外开放度大于对内开放度之外,其它9个地区的对外开放度均小于对内开放度,这9个地区都应该加大对外开放的力度。 展开更多
关键词 经济开放 区域开放 灰色度关联分析
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Response of Ecosystem Service Value Based on Land Use Changes and Analysis of its Driving Factors in Typical Hilly Region with Red Soil 被引量:6
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作者 邹金浪 王金政 +1 位作者 王鹏 乐文年 《Agricultural Science & Technology》 CAS 2010年第11期150-154,共5页
The contribution rate of ecosystem service value variation was used to analyze the effects of land use changes on the changes of ecosystem service value in Xingguo County during 1996-2005.Grey integrated correlation w... The contribution rate of ecosystem service value variation was used to analyze the effects of land use changes on the changes of ecosystem service value in Xingguo County during 1996-2005.Grey integrated correlation was employed to explore the contribution level of the indicators such as total population,urbanization level,proportion of primary industry and investment of social fixed assets on ecosystem service value,and the correlation analysis was also carried out.The results showed that the ecosystem service value in Xingguo County during 1996-2005 mainly was woodland,and the decrease of woodland area was the major reason for the sustained reduction of ecosystem service value.With the further increase of market demand and the incentives of local government,the garden area rapidly increased during 2001-2005,and the influence degree of garden towards the changes of ecosystem service value was only second to woodland,ranking No.2.Four socio-economic indicators had different correlation degree with ecosystem service value during the different research periods.Total population,urbanization level and proportion of primary industry had high correlation degree with ecosystem service value,whereas the influence degree of various socio-economic indicators on ecosystem service value was equal with each other day by day.Urbanization level,investment of social fixed assets and total population had significant negative correlation with ecosystem service value,while the proportion of primary industry had positive correlation with ecosystem service value. 展开更多
关键词 Ecosystem service value Land use change Gray correlation analysis Driving factor Hilly region with red soil
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Grey Correlation Analysis of Physiological Traits Related to Drought Tolerance in Pennisetum sp. 被引量:1
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作者 苏德伟 梅兰 +5 位作者 林辉 罗海凌 张丽丽 宋静 刘军 林占熺 《Agricultural Science & Technology》 CAS 2017年第7期1158-1163,共6页
The drought resistance of Pennisetum sp. was analyzed under different drought stress conditions simulated by various concentrations of PEG-6000. Changesofa series of indexes such as chlorophyll content, water content,... The drought resistance of Pennisetum sp. was analyzed under different drought stress conditions simulated by various concentrations of PEG-6000. Changesofa series of indexes such as chlorophyll content, water content, relative electrical conductivity of osmotic solution, MDA content, proline content, soluble polysaccharide content and soluble protein content in the leaves were measured.The correlation of these indexes with the drought resistance of Pennisetum sp. was an- alyzed by the method of grey correlation analysis. The results showed that the chlorophyll, water content, relative electrical conductivity and soluble protein con- tentexhibited obvious negative correlation with the stress concentration, which de- creasedfollowing the increase of PEG-6000 concentration. The soluble polysaccha- ride contentshowed an increasing trend,the MDA content showed a rise at first fol- lowed by a declinetrend, while the prolinecontent was just opposite to MDA. The changes of the 3 indexes showed obvious positive correlation with thestress con- centration. The correlation of these indexes with the drought resistance of Pennise- tum sp. were ranked as follows: leaf water content (0.980 8), chlorophyll content (0.967 9), MDA content (0.876 0), soluble polysaccharide content (0.839 5), soluble protein content(0.827 5), relative electrical conductivity of osmotic solution(0.670 8), and proline content(0.571 3). 展开更多
关键词 Pennisetum sp. Drought tolerance Physiological characteristic Grey correlation analysis
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Insulation fault diagnosis based on group grey relational grade analysis method for power transformers 被引量:5
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作者 董立新 肖登明 刘奕路 《Journal of Southeast University(English Edition)》 EI CAS 2005年第2期175-179,共5页
Utilising dissolved gases analysis, a new insulation fault diagnosis methodfor power transformers is proposed. This method is based on the group grey relational grade analysismethod. First, according to the fault type... Utilising dissolved gases analysis, a new insulation fault diagnosis methodfor power transformers is proposed. This method is based on the group grey relational grade analysismethod. First, according to the fault type and grey reference sequence structure, some typicalfault samples are divided into several sets of grey reference sequences. These sets are structuredas one grey reference sequence group. Secondly, according to a new calculation method of the greyrelational coefficient, the individual relational coefficient and grade are computed. Then accordingto the given calculation method for the group grey relation grade, the group grey relational gradeis computed and the group grey relational grade matrix is structured. Finally, according to therelational sequence, the insulation fault is identified for power transformers. The results of alarge quantity of instant analyses show that the proposed method has higher diagnosis accuracy andreliability than the three-ratio method and the traditional grey relational method. It has goodclassified diagnosis ability and reliability. 展开更多
关键词 dissolved gases analysis group grey relational grade fault diagnosis
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Effects of Nitrogen, Phosphate and Potassium Fertilizers on Soft Rot of Konjac Based on Grey Correlation Analysis
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作者 杨秀莲 张云 +3 位作者 张晋恒 梁艳丽 谢世清 赵庆云 《Agricultural Science & Technology》 CAS 2014年第10期1710-1713,共4页
[Objective] The effects of different application amounts of nitrogen, phos-phate and potassium fertilizers on soft rot of konjac were investigated in this study. [Method] The grey correlation analysis was adopted to e... [Objective] The effects of different application amounts of nitrogen, phos-phate and potassium fertilizers on soft rot of konjac were investigated in this study. [Method] The grey correlation analysis was adopted to evaluate the correlation be-tween the application amount of nitrogen, phosphate and potassium fertilizers and the occurrence of soft rot of konjac. [Result] The excessive application of nitrogen fertilizer would induce the occurrence of soft rot of konjac, but the application of potassium fertilizer had a good control effect on soft rot. [Conclusion] The applica-tion amount of nitrogen fertilizer should be control ed reasonably in the planting of konjac, but the application amount of phosphate and potassium fertilizer could be in-creased to some extent, reducing the occurrence of soft rot of konjac. 展开更多
关键词 Grey correlation analysis KONJAC Nitrogen fertilizer Phosphate fertilizer Potassium fertilizer Soft rot
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基于DD-GRA的程潮铁矿过渡段充填采区采矿方法优选
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作者 刘艳章 邓磊 +3 位作者 叶义成 王其飞 张群 张丙涛 《化工矿物与加工》 CAS 北大核心 2016年第2期36-40,共5页
程潮铁矿在将崩落法转为充填法开采时,在崩落法与充填法回采区之间设置了过渡段。由于过渡段留有大量的矿石,拟从备选的上向水平分层充填法、上向进路充填法、分段空场嗣后充填法3种采矿方法中选取合适的方法开采过渡段的部分矿石。采... 程潮铁矿在将崩落法转为充填法开采时,在崩落法与充填法回采区之间设置了过渡段。由于过渡段留有大量的矿石,拟从备选的上向水平分层充填法、上向进路充填法、分段空场嗣后充填法3种采矿方法中选取合适的方法开采过渡段的部分矿石。采用相离度法计算指标权重,并将其权重引入灰色关联分析构建相离度-灰色关联分析(DDGRA)模型。选取经济和技术方面的8个主要因素作为评价指标,将3种备选采矿方法作为备选方案,根据8个指标的试生产统计值,应用DD-GRA模型计算各备选方案与理想方案的关联度,以关联度最大的备选方案为最优方案。计算结果表明,程潮铁矿过渡段充填采区的最优采矿方法为分段空场嗣后充填法,采用相离度-灰色关联分析模型优选的采矿方法与矿山试生产实际相符。 展开更多
关键词 采区过渡段 相离-灰色关联分析 采矿方法优选 程潮铁矿
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Correlation, Principal Component and Grey Relation Analysis of Sweetpotato Root Biological Traits
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作者 汪宝卿 杜召海 +3 位作者 张海燕 解备涛 王庆美 张立明 《Agricultural Science & Technology》 CAS 2015年第3期479-485,共7页
[Objective] This study was conducted to explore the internal relationship among root biological traits of sweetpotato, as well as the regularity in their formation and differentiation. [Method] The root traits of 10 s... [Objective] This study was conducted to explore the internal relationship among root biological traits of sweetpotato, as well as the regularity in their formation and differentiation. [Method] The root traits of 10 sweetpotato cultivars were measured through hydroponic culture in a greenhouse and field survey, and then their correlations were analyzed by statistical methods. [Result] The root morphological traits of sweetpotato at seedling stage such as projected area, surface area, average diameter and volume processed the highest contribution rate (80.56%) 10 d after transplanting, and the contribution rate of root average diameter reached 27.79% 20 d after transplanting. Storage root fresh weight per plant shared extremely significant positive correlations with storage root fresh weight of penultimate node and storage root fresh weight of antepenultimate node, and a significant positive corre- lation with commercial storage root number, and a significant negative correlation with storage root number of penultimate node. Among them, the correlation coeffi- cient of storage root fresh weight per plant with storage root fresh weight of antepenultimate node was the highest (0.659 5). Fifteen days after transplanting, storage root fresh weight per plant had significant negative correlations with root projected area, surface area and volume. There was a significant positive correlation between root dry weight and storage root fresh weight per plant 25 d after transplanting. Root dry weight, volume, length, average diameter of sweetpotato seedlings had higher relational degrees with storage root fresh weight per plant. Ten and twenty days after transplanting were important time for the growth and differentiation of sweetpotato roots. In addition, node length and planting depth had certain influence on sweetpotato yield, and direct relationship existed between the seedling root biological traits and storage root yield of sweetpotato. [Conclusion] The results provide theoretical support for standard cultivation and new variety breeding of sweetpotato. 展开更多
关键词 SWEETPOTATO ROOTS CORRELATION Principal component analysis Grey relational analysis
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Evaluation of Relationship Between Clothing Pressure of Men's Suit and Comfort 被引量:4
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作者 白越 陈东生 甘应进 《Journal of Donghua University(English Edition)》 EI CAS 2004年第1期152-156,共5页
An investigation on relationship between clothing pressure of men's suit and wearing comfort is conducted. With the pressure measurements at different parts of men's suit under normal standing posture and in m... An investigation on relationship between clothing pressure of men's suit and wearing comfort is conducted. With the pressure measurements at different parts of men's suit under normal standing posture and in motion, the objective assessment of the total comfort are related to the subjective ratings of clothing pressure. There is a common strong sensation of pressure on shoulder with normal standing posture, and a strong relationship between total comfort and clothing pressure in back armhole and the front of upper arm with posture in motion. 展开更多
关键词 clothing pressure men's suit wearing comfort grey correlation analysis
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Gray comprehensive assessment and optimal selection of water consumption forecasting model 被引量:4
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作者 张智 曾晓岚 +3 位作者 陈金锥 李莉 曲振晓 李广浩 《Journal of Central South University of Technology》 EI 2006年第3期318-320,共3页
A comprehensive assessing method based on the principle of the gray system theory and gray relational grade analysis was put forward to optimize water consumption forecasting models. The method provides a better accur... A comprehensive assessing method based on the principle of the gray system theory and gray relational grade analysis was put forward to optimize water consumption forecasting models. The method provides a better accuracy for the assessment and the optimal selection of the water consumption forecasting models. The results show that the forecasting model built on this comprehensive assessing method presents better self-adaptability and accuracy in forecasting. 展开更多
关键词 water consumption forecasting gray system relational grade analysis comprehensive assessment
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Impacts of Global Warming Perturbation on Water Resources in Arid Zone: Case Study of Kaidu River Basin in Northwest China 被引量:6
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作者 MUPENZI Jean de la Paix 《Journal of Mountain Science》 SCIE CSCD 2011年第5期704-710,共7页
The main goal of this study was to assess the long-term impacts of global warming perturbation on water resources of the Kaidu River Basin in Northwest China. Temperature, precipitation and hydrology data during the p... The main goal of this study was to assess the long-term impacts of global warming perturbation on water resources of the Kaidu River Basin in Northwest China. Temperature, precipitation and hydrology data during the past 29 years from 1979 to 2007 were collected and analyzed using parametric and non-parametric methods, the connection between temperature and precipitation by the combination of grey correlation analysis method and the hypothesis testing for trend of climate change. The results show a high increase in temperature in the study area as well as an extreme and highly variable hydrological regime in this region, where flash floods can exceed the total runoff from a sequence of years. These variations may be due to the geographical location of the Kaidu River Basin in arid zone. It also reveals that precipitation has a much greater impact on stream flow than that of temperature. The development of new approaches was proposed as responses to climate change in this arid region. 展开更多
关键词 Global warming Kaidu River TEMPERATURE Precipitations Stream flow
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Grey analysis of the relationship between grain output and major input factor in Guizhou Province:1983-2005 被引量:2
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作者 Fan Jiangang 《Ecological Economy》 2007年第3期257-265,共9页
Because conditions for the grain production are not favorable and the input in the production factors ofmodern agriculture is not sufficient, the grain supply has been less than the demand for a long time. By means of... Because conditions for the grain production are not favorable and the input in the production factors ofmodern agriculture is not sufficient, the grain supply has been less than the demand for a long time. By means of greycorrelation analysis, this paper deals with the correlation situation among such input factors as the grain sown area, thetotal power of agricultural machinery, the fertilizer utilization volume, the actual irrigation area, the damage area, thenumber of farming labor force, in order to understand the major restricting and driving forces that have affected thegrain output in the recent 23 years. The analysis shows that the grain sown area and fertilizer utilization volume are thetwo most important leading factors that affect grain production in Guizhou Province, while the damage area and the totalpower of the farming-used machines are the following factors. Fertilizer utilization volume and the actual agriculturalmachinery and irrigation area are the two increasingly influential factors that affect grain production. The influence of thefarming labor force upon grain production became less strong. The main measures to increase grain production outputin Guizhou Province are to stabilize the arable land, increase the actual irrigation area, expedite the transfer of thefarming labor force and increase the input of modern agriculture. 展开更多
关键词 Grey correlation analysis Grain production GUIZHOU Input factors
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Screening of Oilseed and Vegetable Dual-purpose Rapeseed Combinations Based on Grey Relation Analysis and Cluster Analysis
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作者 LIU Xin-hong LI Xiao-fang +5 位作者 DENG Li-chao WANG Tong-hua GUO Yi-ming QU Liang DENG Yao-hui ZHOU Xing 《Agricultural Science & Technology》 CAS 2022年第3期10-16,共7页
To screen out the rapeseed(Brassica napus) combinations that are suitable for the production of both oilseed and vegetable, we carried out a field experiment for 11 new combinations(hybrids) of rapeseed and then perfo... To screen out the rapeseed(Brassica napus) combinations that are suitable for the production of both oilseed and vegetable, we carried out a field experiment for 11 new combinations(hybrids) of rapeseed and then performed grey relation analysis and cluster analysis on 12 traits including the yield and quality of young stem,seed yield, and several agronomic traits after harvesting of young stem. The results showed that A11, A7, and A4 had higher main stalk yield than other combinations.The young stem/leaf ratios of A11, A5, A7, A4, A3, and A1 were in line with the quality requirements for young stem commodity. The soluble sugar content of A2,A8, and A10 was higher than that of CK(Fengyou 737), and the seed yields of A4,A3, A2, A1, A5, and A6 were higher than that of CK. The 11 rapeseed combinations were classified into 3 grades by grey relation analysis and cluster analysis. Two combinations, A4(Y20A×95C4R) and A11(3194A×09-5R), showed the weighted relation degrees higher than 0.95, which were clustered into grade I by cluster analysis. They had good agronomic traits and good performance as both oilseed and vegetable. A8, A5, A3, A7, A2, A10, A6, and A1 were clustered into grade Ⅱ and A9 into grade Ⅲ. In this study, the oilseed and vegetable dual-purpose rapeseed combinations were screened out based on grey relation analysis and cluster analysis,which can provide reference for the breeding of oilseed and vegetable dual-purpose rapeseed combinations. 展开更多
关键词 Oilseed and vegetable dual-purpose rapeseed Grey relation analysis Cluster analysis Combination screening
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The Economic Effect of Mineral Resources Exploitation in Bijie Prefecture in Guizhou
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作者 Lu Jinping Zhang Xinhua +2 位作者 Dong Dekun Wang Yining Gu Shuzhong 《Chinese Journal of Population,Resources and Environment》 2009年第2期37-43,共7页
The exploitation of mineral resources plays an important role in promoting national economic development. Mining is an essential component of China's industrial economy. Using grey correlation method to analyze th... The exploitation of mineral resources plays an important role in promoting national economic development. Mining is an essential component of China's industrial economy. Using grey correlation method to analyze the correlative effect of mineral resources exploitation to relevant industries, using national income method to calculate the pulling effect of mineral resources exploitation to economic growth and using graphs as well as tables to analyze the income distribution effect, the article obtains active economic effect of mineral resources development in Bijie, Guizhou. Moreover, from the view of resources-cored effect, the article analyzes negative effects such as single industrial structure brought by mineral resource development. Through analysis, we find that mineral resources exploitation to some extent brings active effects including gross domestic product growth, local financial revenue growth and relevant industries development; however, its negative effects should not be ignored. The negative effect can be lightened by diversifying industrial structure and prolonging industrial chain. 展开更多
关键词 grey correlation industrial correlation effect stimulating effect income distribution effect resource-cored effect
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Industrial Carbon Emissions Status and Analysis Based on Energy Consumption
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作者 Cao Zi Shen Zhenyao 《Chinese Journal of Population,Resources and Environment》 2011年第1期33-41,共9页
With frequent disastrous weathers and increasingly prominent GHG effects in recent years, normal existence and development of mankind are facing unprecedented threats and challenges. GHG emissions mitigation for the g... With frequent disastrous weathers and increasingly prominent GHG effects in recent years, normal existence and development of mankind are facing unprecedented threats and challenges. GHG emissions mitigation for the global climate changes has been the focus of concern of the world. As the biggest developing country and the second largest country of carbon-emission, China attaches importance to the carbon emission reduction. The major GHG component is carbon dioxide and in China, the emis- sion of carbon dioxide is mainly from industrial production. In the paper, the status and trend of Coz emission from industrial departments, high-carbon emission and its specific industries are shown in statistics. Meanwhile, the policy environment, industrial organization structure and technology of carbon high emission are all discussed based on practical situations in these departments and industries. At the end, through the analysis of gray correlation, correlativity is explored for both fossil energy consumption and total carbon emission, and also for the production value and carbon emission of each industrial sector. Some policy proposals for the establishment of low-carbon industries and transition of economic development pattern are set forth. 展开更多
关键词 industrial carbon emissions carbon intensity gray correlation emission reduction approach
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Optimal design of automotive body B-pillar using simplified finite element model of body-in-prime combined with an optimization procedure
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作者 Mehri IZANLOO Abolfazl KHALKHALI 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第12期3939-3955,共17页
Optimization of an automotive body structure faces the difficulty of having too many design variables and a too large design search space. A simplified model of body-in-prime(BIP) can solve this difficulty by reducing... Optimization of an automotive body structure faces the difficulty of having too many design variables and a too large design search space. A simplified model of body-in-prime(BIP) can solve this difficulty by reducing the number of design variables. In this study, to achieve lighter weight and higher stiffness, the simplified model of BIP was developed and combined with an optimization procedure;consequently, optimal designs of automotive body B-pillar were produced. B-pillar was divided into four quarters and each quarter was modelled by one simplified beam. In the optimization procedure, depth, width, and thickness of the simplified beams were considered as the design variables.Weight, bending and torsional stiffness were also considered as objective functions. The optimization procedure is composed of six stages: designing the experiments, calculating grey relational grade, calculating signal-to noise ratio,finding an optimum design using Taguchi grey relational analysis, performing sensitivity analysis using analysis of variance(ANOVA) and performing non-dominated sorting and multi-criteria decision making. The results show that the width of lower B-pillar has the highest effect(about 55%) and the obtained optimum design point could reduce the weight of B-pillar by about 40% without reducing the BIP stiffness by more than 1.47%. 展开更多
关键词 body-in-prime(BIP)model finite element model bending stiffness torsional stiffness B-pillar Taguchi method multi criterion decision-making(MCDM)method
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Partner selection of collaborative innovation of strategic emerging industry - based on ANP-GRA
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作者 Jing Wang 《International English Education Research》 2015年第3期46-49,共4页
The rise and development of strategic emerging industries need a new innovative mode--collaborative innovation, collaborative innovation as a complex multi-object relationship, it is essential to select an appropriate... The rise and development of strategic emerging industries need a new innovative mode--collaborative innovation, collaborative innovation as a complex multi-object relationship, it is essential to select an appropriate partner. Partner selection is the key to the success of strategic emerging industry collaborative innovation. This paper takes collaborative innovation partner selection as research focus, establishing evaluation system of collaborative innovation partner selection, using analytic network process (ANP) to determine the weight of evaluation index, then, obtaining grey correlation rank of collaborative innovation partner by Grey relational analysis (GILA), providing the basis for strategic emerging industry to select collaborative innovation partner. 展开更多
关键词 Collaborative innovation Analytic network process (ANP) Grey relational analysis (GRA)
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