磷矿山环境污染的形成与防治

以湖北省黄麦岭、荆襄磷矿为研究对象，分析了造成磷矿山环境污染的污染源类型及特点，并从矿石特征、矿山生产环节、区域自然环境条件等方面，讨论了对矿山污染的制约和影响，以此，有针对性地提出防治矿山污染的对策和措施。     

三峡蓄水初期水库近坝区水环境特性分析

通过现场观测和数值模拟的方法，对三峡水库近坝区在蓄水初期的水流和水环境特性进行了 分析。对蓄水初期的溶解氧、BOD、COD和NH3-N、Cu等水质参数进行了观测，将蓄水初期水质资料与蓄水之前的结果进行了对比，分析了近坝区水环境变化趋势。采用大涡模拟紊流模型，考虑水体表面的热交换，对三峡近坝区的流动和水温分布特性进行了模拟。研究结果表明，三峡水库蓄水初期近坝区水流特性明显改变，主要表现为水深增加、流速变缓，部分地段有回流区出现。水质指标变化不明显，坝前断面溶解氧浓度、悬浮物浓度有所降低，和悬浮物密切相关的污染物总磷、重金属也随之降低；蓄水初期139m水位时坝前水域尚没有出现温度分层现象。     

电解铝侧插自焙槽技术改造与环境保护

电解铝侧插自焙槽属于落后的生产工艺，由于其能耗高、物料消耗大、劳动强度大、环境污染严重，在国内电解铝中已开始进行大规模的淘汰改造。采用先进的预焙电解槽生产技术，降耗节能、改善生产劳动强度，环境污染得到有效治理，各项环境指标达标排放，经济技术指标提高，食业面貌发生了巨大大变化。     

Diurnal and environmental characterization of solar photovoltaic panels using a PC-AT add on plug in card

This article describes the development of an instrumentation system for characterizing photovoltaic panels. It uses an add on card (which contains DAC, ADC and digital input/output ports) in conjunction with a PC-AT. The panels in a field are selected in succession through a set of relays actuated by the digital output port. The selected panel is loaded in discreet steps by a transistor loading circuit which is activated by the digital to analog convertor to trace the most significant portion of the I-V curve. The data shows that the power output is invariably lower than that specified by the manufacturer. The reasons for drop in output have been analyzed. It is shown that these effects can be represented by the curvature of I-V characteristic at the maximum power point (OP). The loss of power due to accumulation of dust and the increase in temperature of the panels can be significant.     

卷烟企业异味对大气环境的影响分析

云南某卷烟厂制丝、卷接包及香料厨房生产过程中产生非常浓烈的异味,异味主要为有机高分子碳氢化合物,还含有少量低分子有机碳氢化合物和微量的氨气.通过公众参与调查和模式预测,判定其影响范围在下风向650 m以内.项目处于某城市建成区,由于项目周围学校、居民区等敏感点众多,因此,为减轻该厂生产过程中排放的异味对周围环境的影响,该厂要么尽快搬迁,要么根据项目异味气体的特征,采取生物滤池或化学洗池等对异味进行治理,并针对有挡雨帽和无挡雨帽排气筒两种情况分别提出了异味的最低去除效率.     

An evaluation of possible EU air transport emissions trading scheme allocation methods

The European Commission has been requested by member states to study the incorporation of air transport into their existing emissions trading scheme (ETS). Only CO₂ is to be included, at least initially.     

四氯化碳生产中氯化反应的回火原因分析与对策

探讨了四氯化碳生产中氯化反应的回火原因及避免回火的对策 ,解决了生产中的实际问题     

High temperature low cycle fatigue

Fatigue at high temperature is a complex phenomenon as it is influenced by a number of time-dependent processes which become important at elevated temperatures. These processes include creep, oxidation, phase instabilities and dynamic strain ageing (DSA), acting either independently or synergistically influence fatigue behaviour, often lowering the fatigue life. Current design approaches employ linear summation of fatigue and creep damage with suitable factors on permissible damage to take care of uncertainties in interaction between cyclic and time-dependent processes. It is, therefore, important to develop a deeper understanding of the processes that occur during high temperature fatigue so that realistic life predictions could be made. Results on the high temperature fatigue behaviour of austenitic stainless steels, ferritic steels and nickel base alloys are presented here. The important mechanisms of interaction of high temperature time-dependent processes with fatigue under various conditions are discussed in detail. Emphasis is placed on cyclic stress response, fatigue life, deformation substructure and fracture behaviour. This is followed by a review of important life prediction techniques under combined creep-fatigue loading conditions. Life prediction techniques considered here include linear damage summation, strain range partitioning, ductility exhaustion approach, frequency modified and frequency separation methods, techniques based on hysteresis energy and damage rate models, and methods based on crack-cavitation interation models.     

石化企业环境管理信息系统的研究和应用

为提高石化企业环境管理的工作效率，研究并开发了具有环境质量自动监测、污染源监测与预警管理、污染源智能分析、监督检查、HSE报表管理及台帐管理等功能集于一体的环境管理信息系统。该系统应用后，有效规范了各个业务流程，提高了工作效率，对促进企业安全生产和持续、稳定地发展具有重要的意义。     

严格环境管理提高环境意识

环境伴随着经济的发展越来越体现了它的重要性,全社会应重视环境、保护环境,以预防为主,加强综合治理,使我们的天更蓝、水更净、草更绿,到处充满着春的意境.