用于高频的新颖开关电容积分器

本文研究了用于开关电容(SC)滤波器的离散积分器,所推荐的积分器是由无耗离散积分器(LDI)和双线性离散积分器的最佳线性结合而成,因此,称之为组合离散积分器(CDI)。由于这个积分器使正常转折频率增加一倍,并使高频离散积分器误差减少到最低限度,所以它对高频应用是理想的。文中给出了组合离散积分器的几种SC实现,并且还给出了以组合离散积分器为基础,模拟一般一阶和二阶的模拟滤波器单元的SC电路。     

Small island tourism—the case of Zakynthos,Greece

The impact of uncontrolled tourism on a small island economy and ecosystem can be dramatic. Zakynthos shares this potential problem with many other Greek and Mediterranean islands. The problems of Cyprus. for example, are illustrated in the accompanying case study in the issue. Penny Marinos of the Greek Ministry of National Economy discusses the benefits and dis-benefits that tourism has had and will have on the economy and environment of Zakynthos, and proposes management and planning strategy for the future.     

Corporate social responsibility and competitive advantage: A developing country perspective

Corporate social responsibility (CSR) has attracted wider research interests over recent decades. While some studies have examined the impact of CSR activities on firm competitive advantage (CA), the findings so far remain contradictory. Moreover, the role of export orientation, firm strategy, and structure on the association between CSR and CA has not been explicitly examined. Thus, the purpose of this study is to examine the moderating role of export orientation, firm strategy, structure, and firm size on the association between CSR and CA. Using a sample of 179 responses from management staff in organizations across five sectors in a developing country context of Ghana, the study found positive effects of CSR on CA. The study contributes to the resource‐based view (RBV) scholarship by confirming the important complementary effect of export orientation and organizational structure as important resources and capabilities on the CSR–competitiveness relationship. However, no evidence of a moderating effect of firm strategy, or firm size on the CSR–CA relationship was found. These findings are instructive, impactful, and enrich the existing literature on CSR and strategy. Implications for theory and practice are also discussed.     

参与国际标准化活动,明天会太迟

主要贸易国早已认识到国际标准的重要性,可是,发展中国家的大多数团体对标准化的了解却甚少,他们没有注意到国家及国际水平的标准化和质量认证带来的有利时机,甚至他们没认识到国家标准化机构参加国际标准化活动的价值。     

接收征地中的各方声音

在动用征收权时,我们要实现公众利益和保护私人产权利益的平衡,这种冲突不仅是表现在纽约、美国,在中国也是亟待解决的。在纽约这个城市,如果政府要动用国家征收权征收土地,就要严格按照相关法律、遵守程序规定,然而这并不意味着事情会一帆风顺。我们会遇到很多困难和挑战,梅尔罗斯公地的     

On elementary functions of Pareto variables

Pareto variables are widely used. It is useful to be able to obtain the distribution of some simple functions of Pareto variables in a convenient manner. The Mellin transform with its convolution and exponentiation properties is utilized to that end. Specifically, expressions are written for products, quotients, and sums of products of Pareto variables. These include the distribution of the geometric mean and the product of minimum values of Pareto variables.The Office of Naval Research partially supported the work under Contract No. N000-14-75-C-0254.