四川仪陇县:饮水安全助推新农村建设

地处大巴山区的仪陇县是朱德元帅和张思德同志的故乡，属于川陕革命老区。全县辖58个乡镇843个村，总人口中106万人，其中农业人口91万人。地处渠江与嘉陵江分水岭．境内无大江大河，降雨主要集中在7—9月，十年九旱，十旱九灾，是一个资源性缺水、工程性缺水与水质性缺水并重的地区。     

关于邮政短信平台建设的探讨

为了有效地促进传统邮政业务的发展,开拓新的邮政业务领域,创造新的业务增长点,文章对发展邮政短信业务的相关问题作了分析,并结合安徽省的具体建设条件,对邮政短信平台建设的必要性、原则以及系统方案作了具体阐述。     

论柔性战略在中国邮政发展中的应用

文章阐述了柔性战略的含义和特征,阐述了中国邮政实施柔性战略的必要性,提出了邮政企业实行柔性战略管理的推进策略,以提高邮政的应变能力,适应市场的变化。     

The effects of transition on the distribution of income in China

Using two large samples for 1988 and 1995 we decompose the Gini coefficient of household income according to type of income with the purpose of analyzing reasons for the rapid increase of inequality. The results show that the change in relative size of money income and its changed profile are found to be the major processes behind the rapid increase of income inequality in rural China. Changes in housing allocation and an increased number of retirees in combination with higher benefits have made inequality increase in urban China and in China as a whole. JEL classification: D31, P27.     

Contract modifications and the basis behavior of live cattle futures

The purpose of this study was to assess the basis behavior of the Live Cattle Futures contract at the Chicago Mercantile Exchange (CME) before and after the 1995 contract changes. Additionally, an alternative method of basis calculation utilizing weighted mean futures prices versus settlement futures prices was compared to determine which method provides a better representation of the basis level. Within a regression model with heteroskedascity error framework, we found that the level of nearby basis in the period after June 1995 has shifted lower and the average monthly open interest of net commercial long positions has substantially increased after the contract modifications. These empirical results are consistent with the notion that more long activity entered the market in response to the contract modifications. Additionally, an alternative (new) measure of basis calculation (cash price minus weighted mean futures price) produced similar results to two other commonly used measures. In conclusion, the 1995 contract changes have neither increased nor decreased the volatility of live cattle basis. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:557–590, 2004     

中小企业联盟协作发展战略

一、企业联盟与协作的基础 20世纪世纪70年代以后,以微电子技术为基础的计算机技术和通信技术取得了巨大的发展,并向经济和社会的各个领域渗透.例如,计算机辅助设计(CAD)、计算机辅助制造(CAM)以及柔性制造系统(FMS)、计算机集成制造系统(CIMS)、敏捷制造(AM)等的日益发展,使企业能够更为有效地改善新产品开发质量,缩短开发周期,降低成本,为企业根据市场需要快速更新产品和开发新产品提供了更强的技术保障.     

秦皇岛港的新发展新目标

105年前,危机重重的清政府迫于国内政治、经济形势恶化的压力,决定自行开埠,秦皇岛港应运而生,成为清朝惟一的自开通商口岸。在20世纪的百年中,秦皇岛港与中华民族的兴衰而同命运,共发展。新中国成立前的半个世纪,秦皇岛港举步维艰,1949年港口吞吐量仅为22.7万吨。新中国成立后     

影视艺术家协会瘦马拉大车

资本和技术主宰一切的时代已经过去，创意经济时代已经来临。     

建设完善的国内宽带网络 提高技术支撑能力

一．着眼业务需要建设新华社国内宽带网 环顾当今世界，信息爆炸式增长，以通信和网络为主要代表的信息技术突飞猛进，信息技术创造了网络媒体，引发了人类信息获取手段的革命，给传统媒体产业带来了巨大挑战，技术支撑能力已经提升为通讯社核心竞争力中至关重要的组成部分。     

Fuzzy control of nitrogen removal in predenitrification process using ORP.

In order to meet increasingly stringent discharge standards, new applications and control strategies for the sustainable removal of nitrogen from wastewater have to be implemented. In the past years, numerous studies have been carried out dealing with the application of fuzzy logic to improve the control of the activated sludge process. In this paper, fuzzy control strategies of predenitrification systems are presented that could lead to better effluent quality and, in parallel, to a reduction of chemicals consumption. Extensive experimental investigations on lab scale plant studies have shown that there was excellent correlation between nitrate concentration and ORP value at the end of the anoxic zone. Results indicated that ORP could be used as an on-line fuzzy control parameter of nitrate recirculation and external carbon addition. The optimal value of ORP to control nitrate recirculation and external carbon addition was - 86 +/- 2 mV and - 90 +/- 2 mV, respectively. The results obtained with real wastewater also showed the good performance and stability of the fuzzy controllers independently from external disturbances. The integrated control structure of nitrate recirculation and external carbon addition in the predenitrification system is also presented.