适合在分布存储大规模并行处理系统上应用的块ADI算法

提出了适合在分布存储的大规模并行处理系统上应用的块ＡＤＩ算法，实现了计算和通讯的局部化，大大减少了通讯花费。在曙光１０００计算机上的数值试验表明，块ＡＤＩ算法比传统的ＡＤＩ方法具有更高的并行计算效率。     

称重显示仪表与计算机的数据通讯

本文以ＡＤ－４３２２Ａ为例讲述称重显示仪表与计算机进行数据通讯。称重显示仪表与计算机采用串口通讯方式。     

扩展内存在包装CAD中的应用

扩展内存在包装ＣＡＤ中的应用向艳萍一、引言微机ＣＡＤ系统（计算机辅助设计系统）已迅速发展。ＣＡＤ技术从主要用于大型企业，已走向中、小型企业，乃至个体业；从机械、电子、建筑行业，已扩散到包装行业。包装ＣＡＤ技术，面向包装容器实体造型的设计，面向包装装磺...     

《球型钢支座系列化产品CAD系统》研究开发

本文综述了球型钢支座的结构特点和应用范围，介绍了《球型钢支座系列化产品ＣＡＤ系统》（简称ＱＧＺＣＡＤＳ）应用软件的基本功能，及系列化产品设计方法和计算机参数化绘图方法在本系统中的应用。     

多单元组合结构节点位移规格数自动生成

本文论述作为高层建筑设计ＴＢＣＡＤ系统支撑软件的节点位移规格数自动生成的计算机方法，研制了ＪＤＰＡＵＴ程序，在ＤＥＣＳＴＡＴＩＯＮ３１００上实现，并与高层建筑多重子结构分析程序ＤＡＳＴＡＢ接口。     

应用软件工程方法开发CAD工程：机械并业CAD工程开发应用规范实施要点

氢计算机技术、通讯技术与产品设计结合起来，形成ＣＡＤ应用系统，实质上是一个软件的开发过程。必然用软件工程的原理与方法业指导这一工作。作者根据工厂ＣＡＤ实施的经验、国家软件开发的规范、软件工程的开发步骤提出了企业ＣＡＤ开发应用规范实施要点。     

参数化图形设计技术及其在组合式空调CAD中的应用

本文论述了一个组合式空调ＣＡＤ系统，文中着重阐述了参数化图形设计原理及其在组合式空调ＣＡＤ中的应用，利用此种方法建立及修改图形方便有效。     

CIMS环境下汽车车身CAD系统的研究与应用

结合东风汽车公司车身计算机集成制造系统中车身ＣＡＤ系统的研究和应用，介绍了高新技术引起的车身设计方法的重大变革以及计算机在车身设计实际应用中的关键技术和应用成果。     

1种基于AD590的温度数据采集系统

简述ＡＤ５９０温度传感器的测温原理及其特点，介绍ＡＤ５９０在以ＭＣＳ－５１单片机为微处理器的温度数据采集系统中的应用。文章着重讨论了温度数据采集系统的软硬件设计方法。     

成组夹具CAD系统图形库的建立与开发

本文介绍子武工成组夹具计算机辅助设计系统（ＷＧＪＪＣＡＤ）中国形库建立与开发的必要性，图形库的内容和结构，探讨了图形库开发过程中的几项关键技术。     

A homogeneity study using NIR spectroscopy: tracking magnesium stearate in Bohle bin-blender

A method was developed for studying mixing of cohesive pharmaceutical mixtures. A combination of accurate sampling and NIR spectroscopic analysis was developed as a suitable method to determine homogenization of magnesium stearate as a function of blending variables. A typical pharmaceutical blend containing a ratio 35:64:1 lactose, avicel, and magnesium stearate was used as a model system. The method accounted for variability of the concentration of magnesium stearate as well as variability of the excipients. Levels of magnesium stearate as low as 0.05% could be resolved by the method, and showed a predicting confidence interval above 98%.     

Voltage effects on the production of nanocarbons by a unique arc-discharge set-up in solution

Well graphitised nanocarbons including onion-like fullerenes and single- and multi-walled carbon nanotubes (CNTs) were synthesised in high yield by automatic arc-discharge method in solution. This technique is considered a low-cost method since it does not require any expensive equipment. Herein, an arc discharge full automatic set-up was used for fabrication of CNTs which enables controlling of the gap between the two electrodes and the voltage as well. Carbon nanostructures under a controlled amount of voltage (from 10 to 30 V) were synthesised where Ni : Mo as a catalyst and LiCl 0.25 M as a solution were used. Subsequently, a modified acid treatment method was applied as purification stage of the products. The production rate of CNTs was as high as 7.7 mg min^?1 while the voltage was set at 30 V. Scanning electron microscopy and transmission electron microscopy as well as Raman spectroscopy were employed to study the morphology of these carbon nanostructures. The results indicated that CNTs synthesised at a voltage of 30 V had the best quality and elongated straight structures. The mechanism of the voltage conditions for preparing nanocarbons as well as their characterisation are discussed.     

Analysis according to the change in structure of ultrasonic sensors and the change in pressure inside the tank for measurement of fuel amounts in compressed natural gas (CNG) tank

The present study is a fundamental research for precise measurement of fuel amounts in a compressed natural gas (CNG) tank where an analysis of receiving sensitivity was conducted as a result of changes in the contact surface shape in the number of piezoelectric element of the ultrasonic sensor as well as in the internal pressure of the tank. Experiments were conducted as a function of changes in the contact surface shape between the ultrasonic sensor and outside of the aluminum tank and in the number of piezoelectric element as well as in the internal pressure of the tank. According to the experimental results, it could be confirmed that the maximum receiving sensitivity value was increased by about 60 % when the contact surface shape of the transmission and receiving ultrasonic sensors compared with the ultrasonic sensor in the Line-Line shape selected as the reference model was changed to the surface. As a whole, the highest receiving sensitivity values were observed when the transmission sensor of surface shape produced as multiple piezoelectric elements and the receiving sensor of surface shape produced as a single piezoelectric element were used. It could be confirmed that receiving sensitivities were improved at the same voltage value as a result of changes in the contact surface shape of the ultrasonic sensor and in the number of piezoelectric elements.     

A Homogeneity Study Using NIR Spectroscopy: Tracking Magnesium Stearate in Bohle Bin-Blender

Abstract

A method was developed for studying mixing of cohesive pharmaceutical mixtures. A combination of accurate sampling and NIR spectroscopic analysis was developed as a suitable method to determine homogenization of magnesium stearate as a function of blending variables. A typical pharmaceutical blend containing a ratio 35:64:1 lactose, avicel, and magnesium stearate was used as a model system. The method accounted for variability of the concentration of magnesium stearate as well as variability of the excipients. Levels of magnesium stearate as low as 0.05% could be resolved by the method, and showed a predicting confidence interval above 98%.     

Replica-based crack inspection

Surface replication has been proposed as a method for crack detection in space-shuttle main engine flowliner slots. The results of a feasibility study show that examination of surface replicas with a scanning electron microscope can result in the detection of cracks as small as 0.005 inch, and surface flaws as small as 0.001 inch, for the flowliner material.     

Electrical properties of CFC- and HCFC-substitutes

Electrical properties of refrigerants are of importance as soon as bushings are surrounded by a refrigerant. This is the case e. g. for hermetic sealed motor compressors as well as for some control devices such as liquid level control units or capacity controls for compressors. This paper presents a survey of existing data for HFC refrigerants and presents new measurements for those HFC blends that have been identified as long term replacements for CFCs and HCFCs. The data collection includes permittivity, electrical conductivity and breakdown voltage. Values are given for the HFC blends R404A, R407C, R410A and R507 as well as for R134a.     

城市音景的鉴定工具-声音漫步

声音存在于城市内的自然和人为环境中,声音来源可分为三个大类形：大自然声诸如风、雨、雷暴等;生命之声诸如鸟类、昆虫、宠物和动物发出的声音;人为之声如人声、音乐声、交通噪声、通风系统之噪声、建筑和拆卸工程之噪声、贸易活动产生的噪声。在最近几年,声音漫步已成为表征城市声景的方法之一。声音漫步通常通过一群人在被研究区内有代表性的典型路径的漫步。漫步者把声音录下来,也将在路径上听到的声音特点和来源记录,以及拍摄照片和在地图上标示。文章旨在为声音漫步提出一个实用指南,方便它成为城市音景的鉴定工具。     

Energy roof as heat pump source/sink

An energy roof was considered both as a source for a heat pump and as a sink during the summer for a machine acting as an air conditioner. Performance looks very promising compared with similar systems which are equipped with finned coils utilizing the outside air as source/sink.     

Prediction of Thermodynamic Properties of Liquid Air

In this work, a simple equation of state (EoS) has been used to predict some thermodynamic properties of air as a pseudo-pure fluid; as a ternary mixture of nitrogen, oxygen, and argon; and as a binary mixture of nitrogen and oxygen at different temperatures and pressures. A comparison with literature tabulated values has been made. The agreement of calculated densities with corresponding tabulated values is good for which the average absolute deviations are better than 0.06% if we assume air as a pseudo-pure fluid, and 0.9% and 1.2% if we consider air as a ternary mixture and as a binary mixture, respectively. To show the ability of this equation of state to predict density, the calculated densities of air have been compared with those computed by other methods.     

Ion optics of multipoles

Properties and applications of various kinds of multipoles, in use is mass spectrometry, are discussed; i.e., magnetic as well as electric dipoles and their combinations, quadrupole lenses, hexapole and octupoles. After a short mathematical interlude the dodecapole (12-pole) is introduced: By a proper potential distribution upon the twelve electrodes, it can act as a dipole in an arbitrary direction; as a quadrupole lens, again in an arbitrary direction; as a hexapole; as an octupole; or as a (linear) combination of these devices.An additional feature, however, is the property of the dodecapole, with equal potential on all rods, to act as an einzel lens. In combination with the quadrupole lens function the dodecapole becomes a unique device which can act as a lens focusing in any two mutually perpendicular directions with independent focal strengths.