荧光灯灯头的快速自动化装配方案设计

荧光灯灯头装配的最大特点在于要求速度快、成本低，本文以GB13－02型荧光灯灯光为例，对其装配过程进行了详细的研究。并对灯头的自动化装配单元中装配动作最多的装配工位提出了合理的设计方案，为实现灯头快速自动化装配打下了基础。     

6万t/a离子膜烧碱装置新技术的攻关

介绍了离子膜烧碱生产中的新工艺、新技术的应用及产生的经济效益和社会效益。     

整流器故障原因分析

介绍了隔膜碱整流装置发生的整流器故障的经过，并对事故进行了分析，进而提出了类似事故的预防措施。     

5万t/a离子膜电解装置建设总结

介绍了5万t／a离子膜电解装置的工程建设及试车情况。     

Texaco煤气化装置长周期运行影响因素分析

介绍了Texaco煤气化工艺流程,从原料煤种、水煤浆浓度、操作工艺、关键设备等几个方面讨论了影响装置长周期运行的因素,提出了延长气化装置运行周期的措施。     

螺杆式制冷与活塞式制冷的比较

介绍了螺杆式制冷装置并进行了理论分析,阐述了螺杆式制冷装置和氨活塞式制冷装置的运行工况,通过分析,表明螺杆式制冷装置提高了油的利用率,降低了成本。具有体积小重量轻,高效换热,制冷过程简单,便于维护,运行安全,制冷量大及轴功率高等特点。     

A fuzzy DEA model with undesirable fuzzy outputs and its application to the banking sector in India

Data envelopment analysis (DEA) is a widely used technique for measuring the relative efficiencies of decision making units (DMUs) with multiple inputs and multiple outputs. However, in real life applications, undesirable outputs may be present in the production process which needs to be minimized. The present study endeavors to propose a DEA model with undesirable outputs and further to extend it in fuzzy environment in view of the fact that input/output data are not always available in exact form in real life problems. We propose a fuzzy DEA model with undesirable fuzzy outputs which can be solved as crisp linear program for each α in (0, 1] using α-cut approach. Further, cross-efficiency technique is applied to increase the discrimination power of the proposed models and to rank the efficient DMUs at every α in (0, 1]. Moreover, for better understanding of the proposed methodology, we present a numerical illustration followed by an application to the banking sector in India. This is the first study which attempts to measure the performance of public sector banks (PuSBs) in India using fuzzy input/output data for the period 2009–2011. The results obtained from the proposed methodology not only depict the impact of undesirable output on the performance of PuSBs but also analyze efficiently the influence of the presence of uncertainty in the data over the efficiency results. The findings show that the efficiency results of many PuSBs vary with the variation in α during the selected period.     

基于GPGPU的实体表面实时提取

为实时提取三维实体表面,提出一种基于GPGPU并行计算的实体表面实时提取方法。在分析深度剥离算法原理和GPU图形绘制管线的基础上,给出在GPU上利用深度剥离算法实现实时提取三维实体表面的算法;通过OpenGL的高级着色语言GLSL控制GPU的图形绘制管线实现了该算法,给出其伪代码。以龙、叶轮和刀具扫描体的模型为应用实例验证了该算法效果良好,特别是对于刀具扫描体表面的提取,可满足实时性要求。     

Configurational statistics of copolymers prepared by complex-radical polymerization

Radical copolymerization is considered theoretically taking into account the effect of complexing on the configurational statistics of macromolecules formed. Akinetic model has been developed that considers, apart from the ordinary addition of single monomer units to a propagating chain, the possible addition of monomer unit pairs along with a complexing agent in the form of a ternary complex. Within the framework of this model, the problem of calculating the probabilities of formation of any sequences of monomer units (taking into account their microtacticity) in a macromolecule has been rigorously solved as well as the problem of finding the composition distribution of the copolymer formed. It has been shown that this distribution is described by a conventional Gauss law and the appropriate parameters are given. Possible generalizations of the suggested approach are indicated.     

工业装置爆炸事故过程与机理分析(续)

爆炸事故是工业装置和工业过程危害最大的灾害形式。研究和掌握工业装置爆炸机理与过程规律以及预防措施是工业装置安全生产运行的核心技术之一。文章从工业装置爆炸能量、爆炸机理及转换条件等总体结构方面作了一般性的表层分析。