深圳自主创新领先成功的经验探索

深圳一个最初主要以加工贸易为生计的经济特区、一个缺乏传统科技资源的城市,转型为自主创新的先锋城市、国家创新型城市,领先一步闯出了自主创新的成功经验。其值得借鉴的经验启示主要有:面向市场是自主创新的基础、企业主体是自主创新的关键、产业转型升级是自主创新的动力、率先形成创新体系是自主创新的环境、政策大力引导是深圳自主创新的保障。     

一种新型有源滤波器谐波电流检测方法研究

文章首先介绍了独立电源系统的特点，并阐述了独立电源系统有源滤波器谐波和无功电流的补偿原理。而后，根据独立电源系统的特点，提出了一种新型的谐波电流检测方法，通过与传统的瞬时无功功率理论和快速傅里叶变换提取谐波方法相比，该方法计算简单、准确度好、实现方便，具有较大的优越性，并在实际的有源滤波器装置中得到了较好的应用，表明该方法是正确和有效的。     

Modeling International Travel Arrangements for Taiwanese Travelers: Potential Fits

Abstract

This paper presents a choice model of international travel arrangements for potential Taiwanese FIT (Foreign Independent Travel) travelers. Previous studies were based mostly on package vacations, with little attention given to FIT travelers. Recent years have indicated a transition toward FIT. Since this transition is likely to continue, it is important for travel and tourism organizations and for marketers to understand FIT individuals. This study distinguishes potential FIT travelers from non-FIT travelers, identifies variables useful in making this prediction, and provides recommendations to travel and tourism organizations of host countries. The findings indicate that Taiwanese FIT travelers are likely to be younger, male, highly educated, budget conscious, travel with a larger party size for purposes of meeting interesting and friendly local people, stay for longer periods of time, and have taken many trips in the last three years that in volved spending at least four nights away from home.     

Beyond convenience: the future for independent food and grocery retailers in the UK

The UK's independent food and grocery retail sector's competitive advantage of 'convenience' has been eroded in recent years as major retailers increase opening hours and develop their own convenience trading formats. As a result, large numbers of independent retailers are closing. A UK-wide survey was undertaken to identify other sources of competitive advantages, and the changes needed to stop or reverse the decline in this sector. Exploratory semi-structured interviews led to the development of a questionnaire on six major issues affecting the sector. 'Snowball' sampling, using industry partners, provided 142 respondents. The provision of a 'social shopping experience' emerged as a key competitive advantage that could be developed. Improving vertical and horizontal trading alliances, and the wider use of information technology, provided other options.     

广东省独立董事制度现状评述

为了检验独立董事在我国的实施状况,本文仅以广东省上市公司为例,对独立董事占董事会的比例、独立董事年龄、学历、专业构成和独立董事薪酬状况进行分析,试图通过实证方法深入分析我国独立董事制度的实施现状,并提出完善意见。     

美国独立审计委员会制度的演进与启示

本文分析了公司治理下的美国独立审计委员会制度变革历程,阐述其变革后的职能与特点,并对我国审计委员会制度的建设提出了相关建议与对策。     

Reining in auditors: On the dynamics of power surrounding an “innovation” in the regulatory space

In the aftermath of Enron and the collapse of Arthur Andersen, new “independent” institutions were created to oversee financial auditing. Based on a modified version of Lukes’ multidimensional model of power, we first investigate how the creation of the Canadian Public Accountability Board (CPAB) has affected the dynamics of power among the main players enlisted in Canada’s regulation of public accounting. Our findings strengthen the view that a “form of allegiance” was, at the time of data collection, developing between CPAB and the largest Canadian accounting firms. Through a second analytical movement, we extend the boundaries of our argument, showing that patterns of resistance against the logic of arm’s length regulation operate in a variety of audit regulatory sites. Our conclusion points, in particular, to the spatial gap - and incidentally the limitations - of any attempt to control and supervise a globalized industry from a national or regional perspective.     

Mixture of MLP-experts for trend forecasting of time series: A case study of the Tehran stock exchange

A new method for forecasting the trend of time series, based on mixture of MLP experts, is presented. In this paper, three neural network combining methods and an Adaptive Network-Based Fuzzy Inference System (ANFIS) are applied to trend forecasting in the Tehran stock exchange. There are two experiments in this study. In experiment I, the time series data are the Kharg petrochemical company’s daily closing prices on the Tehran stock exchange. In this case study, which considers different schemes for forecasting the trend of the time series, the recognition rates are 75.97%, 77.13% and 81.64% for stacked generalization, modified stacked generalization and ANFIS, respectively. Using the mixture of MLP experts (ME) scheme, the recognition rate is strongly increased to 86.35%. A gain and loss analysis is also used, showing the relative forecasting success of the ME method with and without rejection criteria, compared to a simple buy and hold approach. In experiment II, the time series data are the daily closing prices of 37 companies on the Tehran stock exchange. This experiment is conducted to verify the results of experiment I and to show the efficiency of the ME method compared to stacked generalization, modified stacked generalization and ANFIS.     

国外政府支持自主创新的经验及其启示

本文在分析市场经济发达国家支持自主创新的做法基础上，研究提出借鉴国外政府促进科技进步与创新先进经验的启示，以及我国政府支持自主创新的若干政策建议。     

混叠通信信号的盲分离处理

同频混叠信号的处理一直是通信信号处理中的难点,常规的信号处理方法难以对其进行有效分析。本文运用最新的盲源分离理论,实现了混叠通信信号的盲分离。仿真结果表明,本文采用的算法分离效果好,运算速度快,可移植性强,基本实现了对混叠通信信号的实时盲分离。