电子束法烟气净化工艺主要因素分析

电子束法烟气净化技术是近年来发展较快的一项烟气净化技术。在清华大学核能技术设计研究院的电子束法烟气净化装置的实验基础上，通过对大量实验数据的分析，找出工艺中各种因素对脱硫率与脱硝率的影响。辐照剂量[D]、烟气温度[T]、含湿量[H]、注氨当量[α]、SO2的初始浓度[CSO2]和NOx的初始浓度[CNOx]是影响烟气脱硫脱硝的基本因素。文章采用相关分析、回归分析的方法，找出主要的因素，建立回归经验方程，以优化系统工艺，简化系统结构，预测实验结果。     

四川石油天然气工业环境统计体系现状分析及改进对策

针对四川石油天然气工业环境统计中存在的非稳定污染源监测数据的统计价值不高，统计调查方法单一，个别统计指标计算未使用国家统一标准等现状，从环境监测站改组入手，改革统计调查方法，建立以必要的周期性普查为基础，以经常性的抽样调查为主体，同时辅之以全面统计报表，重点调查和科学推算综合运用的统计调查方法体系。     

1978—1994年分省农业旱灾灾情的经验正交函数EOF分析

本文利用１９７８～１９９４年各省、市、自治区的农业旱灾受灾面积及播种面积的资料，以旱灾受灾率（即旱灾受灾面积与播种面积之比）作为刻划旱灾灾情的指标。对标准化的旱灾受灾率进行经验正交函数分析，发现前五个典型场方差贡献达７０．７％，可以概括我国旱灾灾情的空间分布主要类型。其中，前三个典型场的正负区域分界线的大体位置分别为长城一线、秦淮线和江南丘陵北缘     

物元分析法在大气环境质量评价中的应用

应用物元分析方法构建大气环境质量的综合评价模型，并将该方法用于唐山市大气环境质量评价中，获得了与实际情况基本符合的评价结果。     

HEAVY RAINFALL DISTRIBUTIONS BY SEASON IN LOUISIANA: SYNOPTIC INTERPRETATIONS AND QUANTILE ESTIMATES1

ABSTRACT: In most studies, quantile estimates of extreme 24-hour rainfall are given in annual probabilities. The probability of experiencing an excessive storm event, however, differs throughout the year. As a result, this paper explored the differences between heavy rainfall distributions by season in Louisiana. It was concluded by using the Kruskal-Wallis and Mann-Whitney tests that the distribution of heavy rainfall events differs significantly between particular seasons at the sites near the Gulf Coast. Furthermore, seasonal frequency curves varied dramatically at the four sites examined. Mixed distributions within these data were not found to be problematic, but the mechanisms that produced the events were found to change seasonally. Extreme heavy rainfall events in winter and spring were primarily generated by frontal weather systems, while summer and fall events had high proportions of events produced by tropical disturbances and airmass (free-convective) conditions.     

北京地区15000年以来环境变迁中灾害性气候突变事件的讨论

通过高分辨率孢粉分析及烧失量、炭屑实验结果的统计分析，结合１４Ｃ、古地磁等，对北京房山东甘池１５０００ａ以来植被变化和环境变迁进行了较为深入的研究，特别强调气候变化的灾害性突变事件。初步得知约在１４１００～１４０００ａＢ．Ｐ．前后曾出现与哥得堡反转相对应的事件，在１００００ａＢ．Ｐ．左右出现类似与新仙女木事件相对应的事件，在大约５７７０ａＢ．Ｐ．和４５６０ａＢ．Ｐ．左右及２８５０～２６５０ａＢ．Ｐ．出现了大暖期的突然降温事件。     

Accidents and risk control

A framework for transformation of knowledge and experience from risk analysis to emergency education is presented. An accident model was developed built on the concept “uncontrolled flow of energy (UFOE)”, where essential elements are the state, location and movement of the energy. A UFOE can be considered as the driving force of an accident, e.g. an explosion, a release of heavy gases. A domain model has been developed for representing emergencies occurring in society. A domain is a group of activities with allied goals and elements, and the domain model uses three main categories: status, context and objectives. Ten specific domains have been investigated including process plant, energy production and distribution, natural disasters and different sorts of transport. Totally 25 accident cases were consulted and information was extracted for filling into the schematic representations with two to four cases pr. specific domain.     

我国石油工业环境保护相关法律问题

目前,我国对石油工业领域环境保护立法,采取的是特殊行业规制与一般规制相结合的模式。总体上看,我国石油工业环境保护领域已建立起初步的法制框架,但仍须进一步完善立法、执法、制订应急预案和建立信息公开机制等。     

葫芦岛市生态环境现状及遏制生态破坏的对策

大量资料和调查显示,葫芦岛市水资源不足且污染严重;湿地环境脆弱,海岸带生态环境破坏严重;矿山生态破坏和污染十分突出.必须尽快编制生态保护规划以强化水资源管理,积极推行生态农业,加强海洋生态保护力度.