沁水盆地北端煤层气储层特征及富集机制

煤层气的富集与储层特征密切相关,并受地质条件的制约。在详细研究煤储层特征及煤层气富集机制的基础上,对沁水盆地北端煤层气的开发前景进行了初步评价。煤岩、煤质、煤体结构及孔渗性、吸附性的观察和测试显示,该区煤层厚度大,热演化程度高,局部发育构造煤,裂隙较发育,吸附性能力强,含气量高,含气饱和度偏低,适合煤层气的开发。该区煤层气的富集主要受控于热演化史和埋藏史。在区域变质的背景上,叠加了岩浆热变质作用,生气强度大。另外,煤层的埋深、顶底板封闭性及水文地质条件都会影响煤层含气量的大小,煤层气富集是多因素有效配置的结果。      

镁法海绵钛生产工艺中大型无隔板镁电解槽的节能实践

以镁法海绵钛生产工艺中大型无隔板镁电解槽的实际节能情况为例，探讨了在镁电解生产中的非生产耗电、生产耗电、漏电等因素造成的能量浪费，阐述了生产中粗镁直流电耗、电流效率、工作电压3者之间的关系，指出了影响电解槽工作电压的有关因素及降低电解槽工作电压的途径。     

汽车空调冷凝器腐蚀试验的表征与评价

介绍了汽车空调冷凝器的腐蚀试验程度及方法，对试验后的冷凝器进行了密封性检查，并用光学显微镜和扫描电镜检测和分析了材料的显微结构，焊接质量，腐蚀性质及其腐蚀深度等。通过对冷凝器的宏微观检查与表征，评价了冷凝器质量的优劣，提出了改进措施与建议。     

医院空调设计的几点体会

空调系统应用于普通房间可能引起空调病 ,应用于医院时此问题将更为突出 ,本文对此类建筑在空调系统设计中应重视的有关问题进行了初步探讨     

The concept of an endurance limit for adhesive joints

The effect of cyclic stressing on the strength of single lap adhesive joints has been studied and a considerable reduction in strength observed when the maximum stress exceeds about 40% of the ultimate tensile strength, but whether or not a true endurance limit exists is not proven. Fallacies are shown in some of the techniques which have been proposed for studying the fatigue behaviour of adhesive joints.     

Trade-offs between gaze and working memory use.

Eye movements during natural tasks suggest that observers do not use working memory to capacity but instead use eye movements to acquire relevant information immediately before needed. Results here however, show that this strategy is sensitive to memory load and to observers' expectations about what information will be relevant. Depending upon the predictability of what object features would be needed in a brick sorting task, subjects spontaneously modulated the order in which they sampled and stored visual information using working memory more when the task was predictable and reverting to a just-in-time strategy when the task was unpredictable and the memory load was higher. This self organization was evidenced by subjects' sequence of eye movements and also their sorting decisions following missed feature changes. These results reveal that attentional selection, fixations, and use of working memory reflect a dynamic optimization with respect to a set of constraints, such as task predictablity and memory load. They also reveal that change blindness depends critically on the local task context, by virtue of its influence on the information selected for storage in working memory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

100吨转炉设备安装

针对100吨转炉设备安装过程中设备重量超载，超高，无法直接采用行车安装的情况，采用了设备分体移位吊装，现场整体组合焊接的施工工艺方案，设计专用安装工装，确保了设备安装精度并一次安装到位。     

Minimum spanning trees made easier via multi-objective optimization

Many real-world problems are multi-objective optimization problems and evolutionary algorithms are quite successful on such problems. Since the task is to compute or approximate the Pareto front, multi-objective optimization problems are considered as more difficult than single-objective problems. One should not forget that the fitness vector with respect to more than one objective contains more information that in principle can direct the search of evolutionary algorithms. Therefore, it is possible that a single-objective problem can be solved more efficiently via a generalized multi-objective model of the problem. That this is indeed the case is proved by investigating the computation of minimum spanning trees.This work was supported by the Deutsche Forschungsgemeinschaft (DFG) as part of the Collaborative Research Center Computational Intelligence (SFB 531) and by the German-Israeli Foundation (GIF) in the project Robustness Aspects of Algorithms.     

基于伏安法润滑油总碱值测定技术的研究

介绍了润滑油总碱值的一种测定新技术——循环伏安法。研究表明，用该方法测定润滑油总碱值是可行的，具有测定结果准确、自动化程度高、操作简单、测定时间短等优点，适合进行现场润滑油测定。     

棒线材无头轧制系统主要工艺过程分析

无头轧制技术是近几年在轧钢行业得以成功应用的一种新的轧制工艺,介绍了棒线材无头轧制系统的组成,并对其主要工艺过程进行了分析.