利用铜烂板液与废铁制取纯铜与氧化铁红

阐述了还原印刷电路废液中的铜（Ⅱ）制取纯铜、利用此提取了铜（Ⅱ）的废液与废铁生产氧化铁红的原理和方法。     

可用余热分析与工业锅炉的最优排烟温度

本文提出了可用余热分析方法及相应的数学模型,并对工业锅炉的最优排烟温度进行了分析。     

一种吸渗曲线测定新方法

本丈针对致密宕样吸渗曲线测定误差大的问题,提出丁-种新测定方法,并对该方法的原理、实鉴情况作了较详细介绍.实脸表明该方法测定精度高,简单易行。     

艾略特诗歌与中西诗学传统

艾略特无可比拟的“对当代诗歌作出的卓越贡献和所起的先锋作用”是以其诗作中所蕴涵的中西诗学传统为根基的。西方文学的叙事传统和中国诗歌的简约风格珠联璧合,使其诗作既具有了深厚的历史积淀,又具有了鲜明的时代特征,从而产生了深远的影响力。     

西方文学传统与中国诗学因子的结合与融通——艾略特《荒原》等诗歌艺术性探析

艾略特“对当代诗歌作出的卓越贡献和所起的先锋作用”是无人比拟的。他之所以能够取得这种杰出的成就与其自觉接受西方传统文化的影响和不自觉地吸收中国诗学因素是分不开的。可以说,其诗作与批评理论的不朽也正在于将二者进行了巧妙的融会贯通。     

A Strategic,Area-wide Contingency Planning Model for Oil Spill Cleanup Operations with Application Demonstrated to the Galveston Bay Area*

This paper develops a general integer programming model for strategic, area-wide contingency planning of oil spill cleanup operations. Model inputs include the set of risk points and the likely spill scenarios and response requirements for each, the sites of existing storage locations and the inventory of components at each, and potential sites for new storage locations. The model prescribes a minimum total cost plan to either build new storage locations, expand existing ones, or both, to purchase new components and pre-position them, and a contingency plan that determines which response systems should be composed to enable an effective time-phased response for each likely spill scenario. A family of heuristics based on linear programming (LP) is devised to resolve this strategic problem, providing an area-wide contingency plan. The heuristics are evaluated on a set of 10 test problems that involve 1869 general integer variables and 3264 constraints. Computational tests indicate that four heuristics are quite effective, prescribing solutions for each of 10 test cases within 1.41% of optimum and within a few minutes runtime. This study focused on modeling the Galveston Bay Area, and the test problems represent application in that area. A sensitivity analysis is demonstrated by assessing the impacts of component availability and the degradation of cleanup capability over time. Use of the model as a decision support aid by responsible parties, contractors, governmental organizations and others is described.