An approach to deal with uncertainty in energy and environmental planning: the MARKAL case

This paper presents a new concept to include uncertainty management in energy and environmental planning models developed in algebraic modeling languages. SETSTOCH is a tool for linking algebraic modeling languages with specialized stochastic programming solvers. Its main role is to retrieve from the modeling language a dynamically ordered core model (baseline scenario) that is sent automatically to the stochastic solver. The case presented herein concerns such a study realized with the IEAMARKAL model used by many research teams around the world.     

餐饮业油烟气排放量的重量法监测

通过试验提出了一种监测餐饮业油烟气的方法，方法首次以单位体积油烟气中总有机物的质量来表示油烟气在空气中的浓度。通过试验选择了最佳监测条件；以石油醚作吸收剂，用ＫＢ－６Ａ型或ＴＭＰ－１５００型空气采样器，控制流量在０．４Ｌ／ｍｉｎ，采集油烟气，并在４０℃时挥发掉吸收剂，经称量得到监测结果，该法所需仪器和试剂简单，并在实际监测中得到了预期的结果。     

Using fugacity to predict volatile emissions from layered materials with a clay/polymer diffusion barrier

Structural insulated panels (SIPs) have significant environmental and energy advantages. However, the tight structure that results may cause degraded indoor air quality and the potential release of volatile organic compounds (VOCs) from these layered materials must be considered. A physically based model for predicting VOC emissions from multi-layer materials is described. Fugacity is used to eliminate the concentration discontinuities at the interface between layers. This avoids an obstacle associated with numerically simulating mass transfer in composite materials. The numerical model is verified for a double-layer system by comparing predicted concentrations to those obtained with a previously published analytical model. In addition, hexanal emissions from multi-layer SIPs are simulated to demonstrate the usefulness of the fugacity approach. Finally, the multi-layer model is used to investigate the impact that clay/polyurethane nanocomposite diffusion barriers can have on VOC emissions. Indoor gas-phase concentrations can be greatly reduced with a barrier layer on the surface, thereby minimizing the environmental impact of SIPs.     

马斯京根模型参数估计的新方法

提出了马斯京投模型参数估计的一种新方法—加速遗传算法,分析了该算法控制参数的优化特性,总结出了这些参数的简便设置技术．应用实例表明,该方法简便、直观、通用、适应性强,它可广泛应用于各种自然灾害模型的优化问题之中。     

关于建立成矿溶液配合物体系Eh-pH图的研究

Eh－pH图是研究成矿溶液的重要手段之一。在传统元素-水体系的Eh—pH图的基础上，笔者提出和研究了成矿溶液中配合物体系的Eh－pH图的建立方法，为成矿溶液的理论模拟和成矿作用的研究提供了新的途径。     

中性含氮化合物的演化及地化意义

通过对生油岩样品中的中性氮系列化合物含量和组成变化的系统研究 ,指出了含氮化合物的热演化规律和形成机制 ,含氮化合物是沉积有机质成岩演化的产物 ,其含量和组成明显受控于有机质成熟度 ;认为 1- / 4-甲基咔唑、苯并 [a]咔唑 /苯并 [c]咔唑等比值可作为成熟度参数。     

城市环境问题与生态调控

应用复合生态系统理论系统分析了城市生态系统的组成、结构和功能特点，介绍了城市生态调控的主要方法及生态规划、生态工程、生态管理的研究内容。生态学原理及城市复合生态系统理论指导下的城市生态调控，是解决我国城市发展与环境保护问题，最终实现人与自然和谐统一、人与环境共同进化的重要途径。     

银铜复合废料回收工艺研究

针对银铜复合废料回收的必要性，及国内外对银铜复合废料分离回收现状，实验研究了一套完整的银铜分离回收工艺，该工艺具有高效、简便、低成本、少污染等优点，铜回收率达99．7％，银回收率大于99．9％，回收铜、银的纯度高于99．9％。     

阻抗复合消声器的动态特性分析

VW - 0 2 2 7-B型空压机的噪声源 ,其空气动力性噪声最强。拟在空压机进气口安装阻抗复合消声器 ,本文针对由最优化设计方法获得的阻抗复合型消声器模型 ,在未对消声器实物加工之前 ,根据消声器的图纸及有关数据进行了有限元动力计算 ,从而初步了解消声器的动态特性。由此可避免消声器制造的盲目性及重复实验 ,为设计优良消声器提供新的有效途径。     

深孔薄壁锥形件冷加工工艺研究

通过对锥形件产品的研制 ,论证了采用复合挤压、变薄拉伸和扩锥挤压相结合的工艺方法是加工深孔薄壁锥形件的可靠工艺方法 ,得出了变薄拉伸加工中加工率不应处于临界加工率状态的结论。