基于"层次计量架构"的通用计量软件研究

针对日益复杂的程控仪器设备计量的自动化控制问题,提出了一种基于“层次计量架构”思想的软件开发构想,并定义了约束条件。由于程控仪器越来越专业化、集成化,使专业计量工程师要花费很大精力用于程控软件的研发。即使是本专业的人员对自己不熟悉的仪器设备,对此往往有很大隔阂。对“层次计量架构”关于专用程控仪器设备的程控软件的通用性和扩展性问题进行了分析,为快速开发出对特定计量任务的程控软件提出了一种新的构想。采用这种思想设计并实现了通用微波功率计量软件系统,并考虑了系统的扩展性和移植性的问题。     

区块整体调剖优化设计技术研究

为满足区块整体调剖技术优化设计的需要,研制开发了一套简便、适用的区块整体调剖优化决策系统,采用模糊综合评判技术建立调剖井选择优化模型、以反映注水井注水能力及油藏和流体特征参数筛选调剖剂,用井组数值模拟优化调剖剂用量和预测调剖效果。采用该方法既可加快计算速度、满足现场调剖的急需,又可保持数值模拟计算在效果预测方面的准确性。利用该方法对辽河油田龙11块整体调剖进行了优化设计,现场试验结果和预测结果相符,取得了较好的增油降水效果。图4表1参2（白宝君摘）     

Crystallisation of nanohybrids of poly(ϵ-caprolactone) and hydrotalcites containing antimicrobial species

Abstract

New composites of poly(?-caprolactone) containing Zn/Al hydrotalcites [layer double hydroxide (LDH)] and ‘active’ antimicrobial anions (benzoate, dichlorobenzoate, o-hydroxybenzoate and p-hydroxybenzoate) prepared with two different techniques have been characterised through differential scanning calorimetry and dynamic mechanical analysis. The method of preparation of the samples has a strong influence on the dispersion of the nanolayers within the polymeric matrix, and, in turn, on the crystallisation kinetics: in fact, the samples prepared by high energy ball milling crystallise much faster than those prepared by casting. The different ‘active’ anions strongly affect the value of the LDH interlamellar distance, which, in turn, affects their capacity of dispersion in the polymer. As a consequence of the different kinds of dispersion, the sample containing benzoate LDH or dichlorobenzoate LDH crystallises faster than that containing p-hydroxybenzoate LDH. Such results are of great importance in the definition of processing and use conditions of such materials of potential interest in food ‘active’ packaging.     

Characteristics of the Thrust Bearing with Accelerating Slider

Thrust bearing characteristics are examined in the motion generated by the accelerating slider. The selected case is the situation where the fluid within the lubricating film initially is at rest and at time zero the infinitely long slider assumes a velocity which is a function of time. Numerical solutions to the governing differential equations are obtained for the case of constant but arbitrary acceleration and for the case of acceleration proportional to time. The corresponding previously published analytical solutions are compared with those numerical results.     

ZnO layers grown by Atomic Layer Deposition: A new material for transparent conductive oxide

We demonstrate possibility of a control (by selection of zinc precursors and variation of a growth temperature) of electrical properties of ZnO films grown by Atomic Layer Deposition (ALD). ZnO films grown by ALD are used in test photovoltaic devices (solar cells) as transparent conductive oxides for upper, transparent layer in inorganic and organic solar cells, and as n-type partners of p-type CdTe.     

Auto CAD的层、块及菜单技术在机械图样中的应用

本文阐述了 Auto CAD 层、块及菜单技术在机械图样中的应用方法和技巧。从而使得计算机辅助机械设计的速度得以提高,并且可以减少磁盘空间的占有量。     

气体渗硼的热力学分析

本文通过热力学分析表明,在BCl_3+H_2介质中进行气体渗硼时,气氛中残留的H_2O、O_2不仅使BCl_3和B原子失去渗硼能力,加大了BCl_3的消耗,而且加剧了Fe-Cl化合物的生成,导致渗硼层孔洞增加。     

Applications of atomic layer chemical vapor deposition for the processing of nanolaminate structures

Atomic layer chemical vapor deposition (ALCVD) is a variant of a CVD process that involves surface deposition for the controlled growth of nano-thickness films. ALCVD is based on the self-limiting surface reaction with less than a monolayer chemisorption of chemical precursors. Advantages of the ALCVD process are uniform film growth on large area substrate, easy control of composition in atomic level, low growth temperature, multi-layer thin film growth with various composition, and wide process window. Since initially developed by Suntola in 1977, ALCVD has been used for the growth of various materials, including oxides, nitrides, metals, elements, and compound semiconductors. This article reviews the basic principle, mechanism, characteristics, and applications of ALCVD.     

PROFIBUS—DP在高炉自动化系统中的应用

本文剖析了Profibus现场总线的通讯原理及特性。具体描述了Profibus—DP在高炉自动化系统硬件和软件方面的应用。同时结合现场实践及施工调试，对现场总线故障的诊断方式提出了有效可行的几点意见。