煤炭市场与国际市场接轨的分析

论述了随着我国成为世界贸易组织正式成员，煤炭市场与国际接轨的现实性已经形成。首先是煤炭体系的接轨，其次是市场经济理念方式的接轨，还要实现煤炭价格与国际市场价格的接轨和贸易方式的接轨。     

Challenges of recycled water pricing

Recycled water has posed new challenges for conventional water supply and wastewater provision models, as it interconnects different related services. The reclaimed water sector faces the arduous task of setting specific pricing policies since rules for potable water and wastewater charges may not be appropriate for it. This article addresses a review of current challenges in pricing policies for recycled water based on case studies available worldwide, highlighting the most common tariff structures in use and the principles applied, providing a guideline for recycled water pricing based on the barriers, drivers, and practices found around the global experiences and academic literature. The results show that different tariff structures are adopted based on local socioeconomic factors and water authorities’ objectives. We conclude that the local environmental conditions, the institutional arrangement, technical and economic specificities are influence factors that decision-makers should consider when setting recycled water charges.     

峰谷电价下居民用电聚合响应特性分析

通过问卷调研和相关文献分析居民用电负荷特性,介绍居民用户电价响应经济学机理。根据南京市典型居民小区历史数据研究电价变化点负荷增长率,分析峰谷电价下居民小区用电聚合响应特性,对比多区域居民负荷增长率并引进峰谷电量比分析,总结居民峰谷电价用电特性及影响因素,分析原因并提出建议。     

EPON技术在平价商店物价监管平台建设中的应用

为满足物价部门对平价商店信息点价格数据采集和物价监管的需要,从网络系统的安全性、灵活性和易维护性等角度考虑,采用EPON组网技术,设计了一套平价商店物价监管网络服务支撑平台解决方案,并以六安市物价监管平台建设为例,阐述了网络建设中的网络架构、光分配网设计和多业务控制网关数据配置等具体实践。     

Electricity market price volatility: The case of Ontario

Price volatility analysis has been reported in the literature for most competitive electricity markets around the world. However, no studies have been published yet that quantify price volatility in the Ontario electricity market, which is the focus of the present paper. In this paper, a comparative volatility analysis is conducted for the Ontario market and its neighboring electricity markets. Volatility indices are developed based on historical volatility and price velocity concepts, previously applied to other electricity market prices, and employed in the present work. The analysis is carried out in two scenarios: in the first scenario, the volatility indices are determined for the entire price time series. In the second scenario, the price time series are broken up into 24 time series for each of the 24 h and volatility indices are calculated for each specific hour separately. The volatility indices are also applied to the locational marginal prices of several pricing points in the New England, New York, and PJM electricity markets. The outcomes reveal that price volatility is significantly higher in Ontario than the three studied neighboring electricity markets. Furthermore, comparison of the results of this study with similar findings previously published for 15 other electricity markets demonstrates that the Ontario electricity market is one of the most volatile electricity markets world-wide. This high volatility is argued to be associated with the fact that Ontario is a single-settlement, real-time market.     

探矿权采矿权与所有权收益之关系的思考

分析和探讨了探矿权和采矿权的内涵和实质,研究分析了国家作为矿产资源所有者、投资者和社会管理者3个不同身份对于探矿权采矿权的不同的权利职责、影响和作用。认为探矿权价款实际上是弄清家底(矿产资源)所付出的代价,而采矿权价款则是国家凭借所有权获得的所有权收益。探矿权使用费和采矿权使用费则是国家作为管理者对矿产资源进行监督管理的体现。探矿权采矿权的设立和实现,是国家作为矿产资源所有者实现其所有权收益的过程,是国家作为投资者获得投资收益的过程,同时也是国家作为管理者进行监督管理和提供服务以及促进国民经济健康发展的过程,当然也是探矿权人和采矿权人获得相应合理经营收益的过程。     

单片机语音合成输出在计价秤中的应用

本文介绍的单片机语音合成输出系统是一个通用型系统。它的应用使得电子计价秤具有更完善、更先进的输出功能。     

浅议网络环境对信息商品价格的影响

本文在分析了信息商品价格和影响信息商品价格因素的基础上，通过对网络特征的分析和阐述，探讨了网络时信息商品价格的影响。     

Supplier Selection Based on Process Capability and Price Analysis

Supplier selection is an important part of supply chain management. Among the numerous methods that have been proposed, process capability index is considered to be the most effective technique for identifying quality parts. However, supplier selection should be carried out on the basis of quality and cost together. There is no easy tool available to evaluate the price and quality in an integrated manner. In this article, a new approach to supplier selection using capability index and price comparison (CPC) chart is presented. The CPC chart integrates the process capability and price information of multiple suppliers and presents them in a single chart. It provides a simple but effective method to consider quality and price simultaneously in the supplier selection process.     

论中国钼业的前景

中国钼生产总量１９９７年达达６．９万Ｔ，中国钼产品近几年由占世界钼总量的１５％上各到２５％左右，由于生产分散、多家出口及互相竞争、导致钼价偏低。金堆城ＪＤＣ品牌氧化钼和钼铁成交价接近西方价。预计近几年世界钼消费维持在２．４０－２．４５亿磅。建议中国钼的产量控制在４．３万Ｔ标准钼精矿；加强技术进步的力度，组建企业集团；降低生产成本，提高世界市场的竞争能力。