Volume 3 Issue 3
Authors: Yun-Hui Zeng
Abstract: In this paper, we study oscillation of second-order nonlinear differential equation with damped term and continu-ous distributed arguments. By using averaging functions and Riccati technique, some new sufficient conditions are establish-ed, which are different from most known ones in the sense that they are based on the information only on a sequence of subintervals of , rather than on the whole half-line.
Keywords: Nonlinear; Interval Oscillation; Continuous Distri-buted Arguments
Authors: Z. Zheng; H.H. Pang; S.B. Fang
Abstract: An approach which integrating the landuse patterns gotten from the landuse data and heavy metal contents of the top 10 cm surface soil layer samplings together, was proposed to detect the indicators of human disturbances within the Yellow Sea coast in China. We proposed a human impact index (HII) using the landuse data to model the human disturbances in each statistical window; the 83 soil samples within the human-dominated landscape in the coast were used as the centers of the circle plots. Heavy metal contents of the soil samples were gained using the inductivelycoupled plasma atomic emission spectrometry (ICP-AES). The multivariate statistics (principle component analysis (PCA), cluster analysis (CA), and correlation matrix) of the 10 heavy metals, Cr, Co, Fe, Mn, Ni, V, Zn, Cu, Ti, and Sr, were done. Curve estimation between HII and heavy metals was also done lastly. The results showed that: (1) PCA showed heavy metals were grouped into a two-component model,which accounted for 78% of all the data variation. The first PC (PC1, variance of 65%) included Cr, Cu, Fe, Mn, Ni, V, Zn, and Co, while the second PC (PC2, variance of 13%) wasconstituted by Sr; (2) CA revealed three clusters of elements: the first one (C1)included elements contained the(Cr, Cu, Fe, Mn, Ni, V, Zn, and Co)that were interpreted as anthropogenic elements, while the second one (C2) Sr and the third one (C3) Ti could be taken as natural or other sources elements; (3) the correlationanalysis showed that the anthropogenic induced metalswere significantly correlated with each other; and (4) from the curve estimation between HII and heavy metals, we found Cr, Co, Fe, Mn, and Ni might the indicators of human disturbances in the Yellow Sea coast.
Keywords: Indicators; Landuse; Heavy Metals; Human Impact Index; Coasts; Multivariate Statistics
Authors: Shanshan Wu
Abstract: Based on China-ASEAN panel data in the period of 1990-2007, this paper uses the gravity models to analyze the effect of the environmental regulation of ASEAN on China’s export trade. In the paper, we are creatively using energy consumption per capita and carbon dioxide emissions per capita as two proxies to measure the stringency of environmental regulation, which reflects economic characteristics of developing countries. According to the theory of supply and demand, we propose export scale and export structure as two factors which can affect the effect of environmental regulation of trade, after analyzing how the foreign environmental regulation affects China’s export. Finally, we testify “the export scale effect of environmental regulation” and “the export structure effect of environmental regulation” by using the empirical results and listed data. That is: 1. China’s export is less sensitive to environmental regulation of ASEAN member countries when the scale of export is relatively small; 2. China’s export is more sensitive to the environmental regulation of ASEAN member countries when “dirty product” covers a greater proportion.
Keywords: Trade; Environmental Regulation; China-ASEAN; Panel Data; Gravity Models Introduction
Authors: Xinbo Sun; Neng Luo
Abstract: In order to establish a reasonable and scientific internal pay system, this paper makes an in-depth study on the application process of point-factor job evalustion approach. Questionnaire survey and statistical analysis methods are used to determine the factors of job evaluation system. Also, it focuses on the weight determination using improved AHP method. Then, it is proposed that the order of positions relative value in some benchmark enterprises should be utilized to verify the result. Finally, a pay system of the industry of refining of gold are constructed, which are accord with the characteristic of operation positions. All the work is based on the practice in specific enterprises, so the effectiveness of the method and the data is testified.
Keywords: Point-Factor; Job Evaluation; Analytic Hierarchy Process; Effectiveness Study; Operation Position
Authors: Guoyi Chen
Abstract: Multinational firms are facing the challenge of cultural differences and cross-culture conflicts. Based on Hofstede (1980)’s Cultural Dimensions theory, this paper firstly listed out main differences among Poland, China and UK of HR practices. Subsequently it put forward established system consisting of the 5-step communication mechanism (cultural analysis, cross-culture training and simulation, localization of HRM, cross-culture control and Culture Pervasion) and finally developed 7s model for guaranteeing the implementation of cross-culture management. The purpose of this paper therefore is to outline and put forward more dynamic and contextual approaches for understanding intercultural communication research in cross-cultural management (CCM).
Keywords: Cross-Culture Management; Cultural Difference; Cultural Dimensions; Communication
Authors: Guoshuai Liu; Yonghuai Hao; Ran Zhou; Kan Yang; Jiao Zheng
Abstract: The improved Adaptive Genetic Algorithm (AGA) and its application in short-term joint optimal operation of Qing River cascade hydropower stations are presented in this paper. In the improved method, a new selection operator is adopted to keep the diversity of population in the selection process by making non-line conversion to fitness function. The results of simulative optimal operation based on several representative hydrographs show that the improved AGA can find a more excellent solution in the same algebra. And the results also show that power generation benefit has a certain correlation with power generation amount, but maximum power generation amount is not equal to maximum power generation benefit. The research achievements also have an important reference for the compilation of daily generation scheduling of Qing River cascade hydropower stations system.
Keywords: Genetic Algorithm; Sine Function; Selection Operator; TOU Power Price; Qing River Cascade Hydropower Stations