氙灯/TiO2体系下敌草隆光催化降解动力学的研究

利用光催化技术通过单因素和中心复合实验对敌草隆的降解动力学进行了研究.在单因素实验中,通过Langmuir-Hinshelwood动力学模型对敌草隆的光催化降解进行了模拟,并系统地考察了催化剂用量、溶液初始pH值和温度对其降解动力学的影响,结果表明,敌草隆的光催化降解符合假一级动力学,中性条件有利于敌草隆的光催化降解,并且随着温度的升高敌草隆光催化降解速率增大;而中心复合实验则着重探讨3个单变量之间相互作用的关系,通过建立数学模型得到敌草隆光催化降解的最佳条件为:TiO2浓度2.98 g·L-1,溶液初始pH=7.78,反应温度为40℃.     

浅谈我国环境友好型住宅的设计

本文阐述了建设环境友好型住宅的理念，论述了在环境友好型住宅设计中应关注的要素，并提出了在环境友好型住宅的设计中如何实现节能、节水、节地、节材的目标。     

天然气发电工程CDM项目开发的探讨

通过对浙江省能源集团公司镇海发电厂在天然气发电工程CDM项目开发方面的具体实践,论述了对于天然气发电的基础线和监测方法学的研究与应用,以及在开发应用过程中的主要注意事项.     

Housing anxiety and multiple geographies in post-tsunami Sri Lanka

Tsunami intervention has been an extraordinary and unprecedented relief and recovery operation. This article underlines the complexities posed by shelter and housing intervention in post-tsunami Sri Lanka, revealing a pragmatic, reductionist approach to shelter and housing reconstruction in a contested and fragmented environment. Competition, housing anxiety and buffer zone implementation have resulted in compulsory villagisation inland, stirring feelings of discrimination and tension, and becoming major obstacles to equitable rebuilding of houses and livelihoods. A new tsunami geography has been imposed on an already vulnerable conflict-based geography, in which shelter has been conceived as a mono-dimensional artefact. An analysis of the process and outcomes of temporary and permanent post-tsunami housing programmes yields information about the extent to which shelter policies and programmes serve not only physical needs but 'higher order' objectives for a comprehensive and sustainable recovery plan.     

厨房油烟气对人体健康的影响及防护设计

论述了厨房油烟气产生和原因及其在日常生活和秤产中对人体健康的影响，提出了除油烟气的方法，并且介绍了一种既除油又除噪的净化装置，这种装置在威望中应用取得了良好的效果。     

Reverse logistics in Malaysia: Investigating the effect of green product design and resource commitment

Reverse logistics and green product design are green supply chain management practices that are being implemented to demonstrate firm's commitment to environmental sustainability. The generation of waste from electrical and electronic equipments prompts the viability of product recovery to salvage invested material and energy. Selection of various reverse logistics product disposition options relies on products’ residual value and the accessibility of reusable content for re-entry in forward supply chain. This study explores the effect of green product design and resource commitment on reverse logistics product disposition by employing empirical analysis on 89 returned mail survey received from ISO14001 certified electrical and electronic manufacturing firms in Malaysia. The results indicated that design for disassembly is necessary to harvest valuable inventories from every product disposition options except of disposal whereas design for environment and commitment of resources have slight influence on repair and disposal activities. As the evidences show that green product design and reverse logistics product disposition are interrelated, firms ought to undertake environmentally proactive approaches to generate benefits from resources that are undeservingly discarded as landfill waste.     

确定挤压凹模模孔位置的强度法

提出了以应力作为目标函数,优化模孔位置的方法,以此设计的挤压凹模,能提高其强度安全系数和使用寿命。以叉车内门架的模拟试件挤压凹模为例,进行了分析计算,结果表明,该方法简明易行。     

对转压气机三维掠动叶优化设计

为探索三维掠动叶降低对转压气机二次流损失的潜力,进一步提高对转压气机气动性能,基于近似函数与遗传算法,针对某对转压气机双排转子在整机环境下进行三维掠动叶优化设计,并对优化前后流场进行对比分析。优化成功的得到了双排“S”形掠动叶,结果表明:三维掠动叶有效改善了双排动叶吸力面径向二次流,减小了吸力面低速区,提高了对转压气机性能,优化工况点整机效率提高0.6%,全工况范围内效率均有所提高；三维掠动叶提高对转压气机效率的根本原因是其对径向负荷分配的重新调整,将叶展下方流动较差区域负荷移至叶展上方,改善流场的同时保证对转压气机负荷不变。      

绿色化学设计过程的定量化方法

通过对环境优先污染物的优化选择策略的研究，设计一种新的评价方法将化学物质对环境的影响定量化。具体先设计一个环境因子，尽量全面考虑到化学物质对环境的各种影响。用人力资本法对其进行经济评价，使最终通过化学物质的环境因子可得到定量化的经济影响。     

A TRIANGULAR MODEL OF DIMENSIONLESS RUNOFF PRODUCING RAINFALL HYETOGRAPHS IN TEXAS1

ABSTRACT: A synthetic triangular hyetograph for a large data base of Texas rainfall and runoff is needed. A hyetograph represents the temporal distribution of rainfall intensity at a point or over a watershed during a storm. Synthetic hyetographs are estimates of the expected time distribution for a design storm and principally are used in small watershed hydraulic structure design. A data base of more than 1,600 observed cumulative hyetographs that produced runoff from 91 small watersheds (generally less than about 50 km²) was used to provide statistical parameters for a simple triangular shaped hyetograph model. The model provides an estimate of the average hyetograph in dimensionless form for storm durations of 0 to 24 hours and 24 to 72 hours. As a result of this study, the authors concluded that the expected dimensionless cumulative hyetographs of 0 to 12 hour and 12 to 24 hour durations were sufficiently similar to be combined with minimal information loss. The analysis also suggests that dimensionless cumulative hyetographs are independent of the frequency level or return period of total storm depth and thus are readily used for many design applications. The two triangular hyetographs presented are intended to enhance small watershed design practice in applicable parts of Texas.