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Comparison of result between the ELISAS/CO values and western blotassay
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《中国输血杂志》 CAS CSCD 2001年第S1期346-,共1页
关键词 CO comparison of result between the ELISAS/CO values and western blotassay
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Comparison of the diagnostic value of four tests for superior labrum anterior and posterior lesions of the shoulde
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作者 郑昱新 《外科研究与新技术》 2005年第3期178-179,共2页
To compare the diagnostic value of four signs for superior labrum anterior and posterior (SLAP) lesions of the shoulder.Methods The physical examination was performed randomly on 81 cases with abnormalities of the sho... To compare the diagnostic value of four signs for superior labrum anterior and posterior (SLAP) lesions of the shoulder.Methods The physical examination was performed randomly on 81 cases with abnormalities of the shoulder.There were four tests,including Kibler anterior sliding test,Liu crank test,O’Brien active compression test and Kim biceps load test Ⅱ.The arthroscopic examination were also performed.The result of the arthroscopic examination was considered as a golden standard,so that we could estimate the diagnosis value of the four tests according to the method of evaluation of diagnosis test on clinical epidemiology,their sensitivity,specificity,positive and negative predictive value,accuracy.Results There were 21 cases diagnosed as SLAP lesions by arthroscopy.The diagnosis value of Kim biceps load test Ⅱ was the highest among the four tests,in which 19 of true positive,59 of true negative,1 of false positive,only 2 of false negative cases;while the sensitivity was 90.48%,specificity was 98.33%,positive predictive value was 95.00%,negative predictive value was 96.72%,and accuracy was 96.30%.However the sensitivity,specificity,positive predicitive value,negative predictive vale and accuracy of Kibler anterior sliding test were 76.19%,96.67%,88.89%,92.06%,91.33%;and those of Liu crank test were 85.71%,93.33%,81.82%,94.92%,91.35%;those of O’Brien active compression test were 80.95%,91.66%,77.27%,93.22%,88.89%.Conclusion Kim Biceps load test Ⅱ may be the best for clinical diagnosis of SLAP lesions of the shoulder.9 refs,4 figs,2 tabs. 展开更多
关键词 comparison of the diagnostic value of four tests for superior labrum anterior and posterior lesions of the shoulde
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A Comparison between American Individualism and Chinese Collectivism-From the View of Cherishing Life in War
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作者 李振营 《海外英语》 2011年第13期253-254,286,共3页
There is a large discrepancy in the value concept of life.We know that the ways of cherishing life are different in war to the soldiers from different cultures.We may perceive that people's concept has been much i... There is a large discrepancy in the value concept of life.We know that the ways of cherishing life are different in war to the soldiers from different cultures.We may perceive that people's concept has been much influenced by the different cultural background and social environment.And similar cultural background and social environment may make people's value trend introject. 展开更多
关键词 comparison INDIVIDUALISM COLLECTIVISM value
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A comparison of tectonic ambient shear stress value in China with that in western USA
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作者 陈培善 白彤霞 李保昆 《Acta Seismologica Sinica(English Edition)》 CSCD 2002年第5期503-509,共7页
A method is proposed to estimate average tectonic ambient shear stress value for a region. Thus the average stress values of 19 regions in western USA, and 43 regions (each region is 1010) in Chinese mainland and its ... A method is proposed to estimate average tectonic ambient shear stress value for a region. Thus the average stress values of 19 regions in western USA, and 43 regions (each region is 1010) in Chinese mainland and its surroundings have been obtained. The data of 15 993 earthquakes are from the Internet Centroid Moment Tensor solution made by Harvard University from 1997 to 1999. The results demonstrate that there are highest average stress values in the regions of south California of USA and its off coast sea, reach to 12.0 MPa and 13.7 MPa respectively, then gradually decrease toward north, south, and east. The lowest value is 8.7 MPa and 63% of highest value. The average stress values in northern Xinjiang and in the Chayu region of Tibet are 17.2 and 12.9 MPa respectively. They are highest values in China and higher than USAs. The average stress value in North China, Yunnan, Sichuan, Taiwan is similar to south California of USA. The average stress value in South-North seismic zone is about 13 MPa, a little higher than south California. The distribution of average stress value for two important regions provides basic data for geology. These results are useful to research earthquake activity background and attenuation relation of strong ground motion parameters (e.g. peak acceleration and response spectra). 展开更多
关键词 average tectonic ambient shear stress value comparison of average stress value Chinese mainland and its surroundings western USA
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Comparison of K_(IC) Values for SiC Whisker Reinforced Ceramic Composites Obtained by Using Various Methods
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作者 Tingquan LEI Guangyong LIN +1 位作者 Shuangxi WANG and Yu ZHOU (Dept. of Metals and Technology, Harbin Institute of Technology, Harbin, 150001, China)(To whom correspondence should be addressed) 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1994年第5期331-340,共10页
The fracture toughness (KIC) values determined by indentation microfracture method (IM ) for SiC whisker reinforced Al2O3 and ZrO2 based composites were calculated with different IM equations and compared with those o... The fracture toughness (KIC) values determined by indentation microfracture method (IM ) for SiC whisker reinforced Al2O3 and ZrO2 based composites were calculated with different IM equations and compared with those obtained by singte edge notched beam (SENB) technique. Experimental results show that the KIC (IM) values calculated with different equations are quite different one from another. For composites without phase transformable components the KIC (IM) and KIC (SENB) values are practically on the same level, but for composites with phase transformable components (partially stabilized zirconia) the KIC (SENB) values are always higher than KIC (IM). This is because that the IM method can not reveal sensitively the toughening effect due to dynamic t-m transformation of ZrO2 as the SENB method does. The accuracy of the IM method depends on the Suitability of the IM equations and was evaluated for the materials used in this investigation. Two new IM equations are suggested with which the KIC (IM ) values can be obtained very close to KIC (SENB) values for composites having phase transformable components. 展开更多
关键词 SiC values for SiC Whisker Reinforced Ceramic Composites Obtained by Using Various Methods comparison of K IC
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A CLASS OF NONLOCAL BOUNDARY VALUE PROBLEMS OF NONLINEAR ELLIPTIC SYSTEMS IN UNBOUNDED DOMAINS 被引量:64
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作者 莫嘉琪 欧阳成 《Acta Mathematica Scientia》 SCIE CSCD 2001年第1期93-97,共5页
The nonlocal boundary value problems for nonlinear elliptic systems in the unbounded domain are considered. Under suitable conditions the existence of solution and comparison theorem for the boundary value problems ar... The nonlocal boundary value problems for nonlinear elliptic systems in the unbounded domain are considered. Under suitable conditions the existence of solution and comparison theorem for the boundary value problems are studied. 展开更多
关键词 elliptic system boundary value problem comparison theorem
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SOME NECESSARY AND SUFFICIENT CONDITIONS FOR EXISTENCE OF POSITIVE SOLUTIONS FOR THIRD ORDER SINGULAR SUBLINEAR MULTI-POINT BOUNDARY VALUE PROBLEMS 被引量:5
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作者 韦忠礼 《Acta Mathematica Scientia》 SCIE CSCD 2014年第6期1795-1810,共16页
We mainly study the existence of positive solutions for the following third order singular multi-point boundary value problem{x^(3)(t) + f(t, x(t), x′(t)) = 0, 0 〈 t 〈 1,x(0)-∑i=1^m1 αi x(ξi) = 0... We mainly study the existence of positive solutions for the following third order singular multi-point boundary value problem{x^(3)(t) + f(t, x(t), x′(t)) = 0, 0 〈 t 〈 1,x(0)-∑i=1^m1 αi x(ξi) = 0, x′(0)-∑i=1^m2 βi x′(ηi) = 0, x′(1)=0,where 0 ≤ ai≤∑i=1^m1 αi 〈 1, i = 1, 2, ···, m1, 0 〈 ξ1〈 ξ2〈 ··· 〈 ξm1〈 1, 0 ≤βj≤∑i^m2=1βi〈1,J=1,2, ···, m2, 0 〈 η1〈 η2〈 ··· 〈 ηm2〈 1. And we obtain some necessa βi 〈=11, j = 1,ry and sufficient conditions for the existence of C^1[0, 1] and C^2[0, 1] positive solutions by constructing lower and upper solutions and by using the comparison theorem. Our nonlinearity f(t, x, y)may be singular at x, y, t = 0 and/or t = 1. 展开更多
关键词 boundary value problems positive solutions lower and upper solutions comparison theorem
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Comparison Test on Adaptability of Six Medicago sativa (Alfalfa) Varieties in Guangxi 被引量:2
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作者 Jinhua QIU Yilong HUANG +2 位作者 Fanquan ZENG Jinyi WEI Na YAO 《Agricultural Biotechnology》 CAS 2020年第4期49-52,共4页
In order to screen the Medicago sativa(alfalfa)varieties suitable for planting in Guangxi,six domestic and foreign heat-resistant alfalfa varieties,namely WL903,WL712,WL525HQ,59N59,Elite 9 and Longwei 6010,were select... In order to screen the Medicago sativa(alfalfa)varieties suitable for planting in Guangxi,six domestic and foreign heat-resistant alfalfa varieties,namely WL903,WL712,WL525HQ,59N59,Elite 9 and Longwei 6010,were selected and tested for growth performance,nutritional value and over-summer rate by the random block method.The results showed that the alfalfa varieties with better plant height and fresh grass yield were 59N59 and WL903,which showed the plant heights reaching 62.01 and 62.53 cm,respectively,and the fresh grass yields up to 40.93 and 38.38 t/hm 2,respectively,exhibiting extremely significant differences from the poorly performing Longwei 6010(P<0.01).The nutritional value of each tested variety was good,and the crude protein content was more than 20%.Among them,Elite 9 had a crude protein content as high as 28.43%.The over-summer rates of the six alfalfa varieties were all higher than 75%.It showed that the alfalfa varieties with fast growth,high yield,high nutritional value and high over-summer rate in this experimental area were 59N59 and WL903,which are suitable as the first varieties for planting in Guangxi. 展开更多
关键词 Medicago sativa Variety comparison Production performance Nutritional value Over-summer rate
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A Comparative Study of Chinese Family Values and American Family Values Influenced by Mass Media
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作者 张小诗 《海外英语》 2014年第10X期285-286,共2页
Different context of mass media between countries can be reflected on the view of family values.In this paper,the author is taking family values as an example to explore the differences between China and America.It is... Different context of mass media between countries can be reflected on the view of family values.In this paper,the author is taking family values as an example to explore the differences between China and America.It is come to a conclusion that mass media have a big influence on family values in both countries.The comparison of different family values also give an inspiration to the development of media industry in China. 展开更多
关键词 FAMILY valueS MASS MEDIA comparison China AMERICA
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SOLUTIONS TO A CLASS OF PARABOLIC INHOMOGENEOUS NORMALIZED p-LAPLACE EQUATIONS
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作者 刘芳 《Acta Mathematica Scientia》 SCIE CSCD 2015年第2期477-494,共18页
In this article, we prove that viscosity solutions of the parabolic inhomogeneous equationsn+p/put-△p^Nu=f(x,t)can be characterized using asymptotic mean value properties for all p ≥ 1, including p = 1 and p = ∞... In this article, we prove that viscosity solutions of the parabolic inhomogeneous equationsn+p/put-△p^Nu=f(x,t)can be characterized using asymptotic mean value properties for all p ≥ 1, including p = 1 and p = ∞. We also obtain a comparison principle for the non-negative or non-positive inhomogeneous term f for the corresponding initial-boundary value problem and this in turn implies the uniqueness of solutions to such a problem. 展开更多
关键词 Parabolic normalized p-Laplace equation viscosity solution asymptotic mean value property comparison principle uniqueness theorem infinity Laplacian
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Review of Biochemical and Nutritional Constituents in Different Green Leafy Vegetables in Oman
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作者 Vijaya Saradhi Settaluri Kholood Mohammed Khalaf Al-Mamari +2 位作者 Salwa Ibrahim Mohammed Al-Balushi Moza Khamis Zayid Al-Risi Muhammad Behjat Ali 《Food and Nutrition Sciences》 2015年第9期765-769,共5页
Green leafy vegetables are very nutrient-dense and incredibly healthy. They are vital sources of antioxidants and they are the best which are very beneficial to providing weight loss and maintenance, because it keeps ... Green leafy vegetables are very nutrient-dense and incredibly healthy. They are vital sources of antioxidants and they are the best which are very beneficial to providing weight loss and maintenance, because it keeps you feeling full and helps control your hunger. Also, leafy vegetables are full of fiber, vitamins;minerals and substances that help protect you from disease [1] [2]. For this we choose five types of vegetables which are lettuce, cabbage, parsley, spinach and arugula to estimate some nutritional values present on them such as: carbohydrate (sucrose, fructose, glucose and starch), protein, amino acids (lysine and phenyl alanine), vitamin C (ascorbic acid) and lipid. The results obtained were analyzed and the relative percentages of these compounds were tabulated. Among the five green leafy vegetables the glucose content was highest in lettuce and was least in arugula. Among the five green leafy vegetables the fructose content was highest in parsley and was least in cabbage. Among the five green leafy vegetables the sucrose content was highest in parsley and was least in cabbage. Among the five green leafy vegetables the starch content was highest in lettuce and was least in spinach. Among the five green leafy vegetables the ascorbic acid content was highest in lettuce and was least in parsley and arugula. Among the five green leafy vegetables the protein content was highest in parsley and was least in cabbage. Among the five green leafy vegetables the lysine content was highest in cabbage and was least in arugula. Among the five green leafy vegetables the phenyl alanine content was highest in cabbage and was least in spinach. Among the five green leafy vegetables the lipid content was highest in lettuce and was least in cabbage. 展开更多
关键词 NUTRITIONAL value PROTEIN CARBOHYDRATE VITAMINS Analysis comparison
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Maintaining an Optimal Flow of Forest Products under a Carbon Market: Approximating a Pareto Set of Optimal Silvicultural Regimes for Eucalyptus fastigata
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作者 Oliver Chikumbo Thomas J. Straka 《Open Journal of Forestry》 2012年第3期138-149,共12页
A competitive co-evolutionary Multi-Objective Genetic Algorithm (cc-MOGA) was used to approximate a Pareto front of efficient silvicultural regimes for Eucalyptus fastigata. The three objectives to be maximised includ... A competitive co-evolutionary Multi-Objective Genetic Algorithm (cc-MOGA) was used to approximate a Pareto front of efficient silvicultural regimes for Eucalyptus fastigata. The three objectives to be maximised included, sawlog, pulpwood and carbon sequestration payment. Three carbon price scenarios (3CPS), i.e. NZ $25, NZ $50 and NZ $100 for a tonne of CO2 sequestered, were used to assess the impact on silvicultural regimes, against a fourth non-carbon Pareto set of efficient regimes (nonCPS), determined from a cc-MOGA with two objectives, i.e. competing sawlog and pulpwood productions. Carbon prices included in stand valuation were found to influence the silvicultural regimes by increasing the rotation length and lowering the final crop number before clearfell. However, there were no significant changes in the frequency, timing, and intensity of thinning operations amongst all the four Pareto sets of solutions. However, the 3CPS were not significantly different from each other, which meant that these silvicultural regimes were insensitive to the price of carbon. This was because maximising carbon sequestration was directly related to the biological growth rate. As such an optimal mix of frequency, intensity, and timing of thinning maintained maximum growth rate for as long as possible for any one rotation. 展开更多
关键词 OPTIMAL Control COMPETITIVE Co-Evolutionary Multi-Objective Genetic Algorithm (cc-MOGA) PARETO Front Forest HOLDING value Kruskal-Wallis Test Multiple comparison Procedure
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Comparison of diagnostic value of TIRADS,BSRTC,BRAF^(V600E) mutation detection and their combined use in differentiating thyroid nodules
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作者 张于芝 《China Medical Abstracts(Internal Medicine)》 2016年第3期147-148,共2页
Objective To compare the diagnostic efficiency of the thyroid imaging reporting and data system(TIRADS),the Bethesda system for reporting thyroid cytopathology(BSRTC)and BRAFV600Edetection,and their combined use in th... Objective To compare the diagnostic efficiency of the thyroid imaging reporting and data system(TIRADS),the Bethesda system for reporting thyroid cytopathology(BSRTC)and BRAFV600Edetection,and their combined use in the differentiation between benign and malignant thyroid nodules.Methods One hundred 展开更多
关键词 FNAC comparison of diagnostic value of TIRADS BSRTC BRAF V600E mutation detection and their combined use in differentiating thyroid nodules
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A comparison of genomic selection methods for breeding value prediction 被引量:8
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作者 王欣 杨泽峰 徐辰武 《Science Bulletin》 SCIE EI CAS CSCD 2015年第10期925-935,I0007,共12页
Recent advances in molecular genetics techniques have made dense marker maps available, and the prediction of breeding value at the genome level has been employed in genetics research. However, an increasingly large n... Recent advances in molecular genetics techniques have made dense marker maps available, and the prediction of breeding value at the genome level has been employed in genetics research. However, an increasingly large number of markers raise both statistical and computational issues in genomic selection (GS), and many methods have been developed for genomic prediction to address these problems, including ridge regression-best linear unbiased prediction (RR-BLUP), genomic best linear unbiased prediction, BayesA, BayesB, BayesCπ, and Bayesian LASSO. In this paper, these methods were compared regarding inference under different conditions, using real data from a wheat data set and simulated scenarios with a small number of quantitative trait loci (QTL) (20), a moderate number of QTL (60, 180) and an extreme number of QTL (540). This study showed that the genetic architecture of a trait should be fully considered when a GS method is chosen. If a small amount of loci had a large effect on a trait, great differences were found between the predictive ability of various methods and BayesCπ was recommended. Although there was almost no significant difference between the predictive ability of BayesCπ andBayesB, BayesCπ is more feasible than BayesB for real data analysis. If a trait was controlled by a moderate number of genes, the absolute differences between the various methods were small, but BayesA was also found to be the most accurate method. Furthermore, BayesA was widely adaptable and could perform well with different numbers of QTL. If a trait was controlled by an extreme number of minor genes, almost no significant differences were detected between the predictive ability of various methods, but RR-BLUP slightly outperformed the others in both simulated scenarios and real data analysis, thus demonstrating its robustness and indicating that it was quite effective in this case. 展开更多
关键词 Prediction Genomic selection Breeding value comparison Predictive ability
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Initial Value Problems for Second Order Impulsive Integro-Differential Equation in Banach Spaces
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作者 陈芳启 张海燕 《Transactions of Tianjin University》 EI CAS 2005年第1期73-78,共6页
By an established comparison result and using the upper and lower solutions,one sufficient condition of existence of minimal and maximal solutions to initial value problem for second order impulsive integro-differenti... By an established comparison result and using the upper and lower solutions,one sufficient condition of existence of minimal and maximal solutions to initial value problem for second order impulsive integro-differential equation in Banach spaces is obtained and the related results are essentially improved.At the same time, another sufficient condition of existence of minimal and maximal solutions based on the Kuratowski measure of noncompactness is given. 展开更多
关键词 impulsive integro-differential equation initial value problem comparison result
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Kinship,Equality,and Hierarchy:Sex Distinction and Values in Comparative Perspective①
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作者 Cecile Barraud Zhao Xiuyun 《民族学刊》 2016年第3期95-97,共3页
Equality is a recurrent theme in discussions of Euro-American societies. It is both an aspiration and an impossibility which stands in contradistinction to Euro-American notions of power (Dumont 1 9 8 6; Robbins 1994... Equality is a recurrent theme in discussions of Euro-American societies. It is both an aspiration and an impossibility which stands in contradistinction to Euro-American notions of power (Dumont 1 9 8 6; Robbins 1994). As an aspiration, it goes in tandem with the idea of liberty,both linked to the value of individualism, which prevails in these societies. 展开更多
关键词 value Dumont AFFINITY GENDER comparison
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Comparison of changes of typical river segment ecosystem service value in LRGR 被引量:1
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作者 WEI GuoLiang CUl BaoShan YANG ZhiFeng BAI JunHong WANG Juan HU Bo 《Chinese Science Bulletin》 SCIE EI CAS 2007年第A02期262-272,共11页
来自 Lancang 河和 Yuanjiang 河的河片断生态系统的陆地使用变化从 1985 ~ 2000 被学习以便比较他们服务价值的变化并且分析开车机制基于 eco 经济并且 GIS 方法。结果显示出那个森林在两个的区域河片断生态系统被减少。在 Lancang 河... 来自 Lancang 河和 Yuanjiang 河的河片断生态系统的陆地使用变化从 1985 ~ 2000 被学习以便比较他们服务价值的变化并且分析开车机制基于 eco 经济并且 GIS 方法。结果显示出那个森林在两个的区域河片断生态系统被减少。在 Lancang 河(LR ) 片断生态系统的减少的森林主要与 56.0% 的变换率被转变成大地,当在 Yuanjiang 河(年) 片断生态系统的减少的森林主要与 42.5% 的变换率被转变成住处土地时。变化数量和在 LR 片断生态系统的每种陆地使用类型的区域的变化率比在 YR 片断生态系统的那些大得多。LR 片断生态系统的全部的服务价值与 15.3% 的变化率被减少,当年片断生态系统的与 0.6% 的变化率被增加时。Manwan 水力发出的电力开发是与 93% 的贡献率导致了 LR 片断生态系统的服务价值的变化的主要人为的开车因素。农业活动是在有 59% 的贡献率的 YR 片断生态系统的最重要的开车因素。沉积交通服务源于 Manwan 水力发出的电力工程建设的价值的损失应该负责水的服务价值的重要减少,甚至为整个 LR 片断生态系统。在学习区域的森林和草地的生态系统服务系数比在中国的平均水平高得多,那么是间接价值的比率指导两个的价值河片断生态系统。在人的活动的影响下面,为提供产品的河生态系统的能力被提高,当维持自然生态系统健康被削弱时。 展开更多
关键词 纵向岭谷区 河流 生态环境 评估方法
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Dynamic Changes of China’s Functional Specialization in Export and International Comparison under Global Value Chains
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作者 Zhenguo Wang Yabin Zhang +1 位作者 Meng Niu Yuan Zhong 《China Finance and Economic Review》 2020年第3期95-115,共21页
The functional specialization in export of a country(and its sectors)in different activities,such as fabrication,R&D,management and marketing,is crucial to its governance and control on the value chains,which magn... The functional specialization in export of a country(and its sectors)in different activities,such as fabrication,R&D,management and marketing,is crucial to its governance and control on the value chains,which magnifies the shortage of the existing aggregate value added studies on our understanding of global value chains(GVCs).Considering production fragmentation at both the spatial and functional levels,this paper defines the modified functional specialization indicators at the national and sectoral levels from the forward linkage(rather than backward linkage).Based on the World Input-Output Database together with the newly compiled Labor Occupations Database,this paper re-estimates and analyzes the functional specialization and changes in China and major developed economies’exports.The results show that China’s export is mainly specialized in fabrication activity,which is among the world leading level,while it is weak in headquarter activities(especially R&D and management),which is almost locked at the lowest level in the world and could not pose an export threat to the developed economies.China’s manufacturing basically follows the functional development path of“relying on fabrication,entering market,targeting management and R&D”,featuring the coexistence of“strong”fabrication and“weak”management and R&D.The fabrication specialization of the typical processing sector“electronic and optical equipment”has reached the international leading level.The level of functional specialization of China’s service industry is generally lower than that of manufacturing and generally lags behind in the world,indicating that China still has a long way to go before becoming a major power of service in the world.Finally,this paper proposes policy implications and further researches that can be extended. 展开更多
关键词 global value chains functional specialization domestic value added in export international comparison
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冲击加速度国际关键比对与参考值确定
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作者 胡红波 白杰 孙桥 《计量学报》 CSCD 北大核心 2024年第1期57-63,共7页
介绍了中国计量科学研究院主导的冲击加速度国际关键比对(CCAUV.V-K4)。分析了比对样品冲击测量链各部分动态特性,并与实验室实际校准的冲击加速度激励信号相结合,说明了作为测量结果的冲击灵敏度与冲击激励的关系。针对比对参考值及其... 介绍了中国计量科学研究院主导的冲击加速度国际关键比对(CCAUV.V-K4)。分析了比对样品冲击测量链各部分动态特性,并与实验室实际校准的冲击加速度激励信号相结合,说明了作为测量结果的冲击灵敏度与冲击激励的关系。针对比对参考值及其相应不确定度计算的问题,详细说明了3种方法的计算过程,包括国际比对推荐的计算方法和2种基于贝叶斯推断的计算方法。特别对基于贝叶斯统计的方法,结合实际校准过程的信息,采用了不同的统计模型和先验分布,利用马尔科夫链-蒙特卡洛(MCMC)数值计算方法得到了比对参考值的后验分布。对3种方法计算结果的进行了比较,并说明了3种方法的统一性及优缺点。 展开更多
关键词 计量学 冲击加速度 关键比对CCAUV.V-K4 比对参考值 贝叶斯推断
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基于遗传算法的溶洞智慧处治决策方法
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作者 韦良 韦举向 刘剑霞 《广西大学学报(自然科学版)》 CAS 北大核心 2024年第5期997-1005,共9页
为了应对多因素影响导致溶洞处理方案决策困难的问题,提出以价值工程为依据的智慧处治决策方法,综合考虑处理方案适应性和施工成本2个评价目标,并基于遗传算法构建多方案最优决策模型。结果表明:在决策过程方面,该决策模型在兼顾决策精... 为了应对多因素影响导致溶洞处理方案决策困难的问题,提出以价值工程为依据的智慧处治决策方法,综合考虑处理方案适应性和施工成本2个评价目标,并基于遗传算法构建多方案最优决策模型。结果表明:在决策过程方面,该决策模型在兼顾决策精度的同时具有较好的收敛性和收敛速度,简化决策过程,节省决策时间;在决策结果方面,相较于方案适应度单目标决策结果,该决策方法通过价值优化,将方案的适应度降低9.05,使得施工成本节省937064.71元,最终方案价值指数提升2.76。与方案成本单目标决策结果相比,该决策方法仅通过增加成本38215.78元,将方案适应度提升3.35,最终方案价值指数提升0.2,其优化成效在一定程度上解决了溶洞处理过程中成本浪费或者处理方案功能过剩的问题。 展开更多
关键词 溶洞处理 遗传算法 方案比选 价值工程
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