国际放射防护委员会的剂量系数的可靠性

在评价公众成员摄入放射性核素的辐射危害时，需估算每单位摄入量所致的剂量。摄入放射性素后器官或民受到的剂量是受到的剂量是通过生物学模型和剂量学模型来确定的，因此剂量也必须根据模型来确定。文中初步探讨了国际放射防护委员会给出的剂量系数的可靠性问题。文中首先说明了估算剂量系数的概念和方法，然后分析了剂量系数估算中，采用胃肠道模型，呼吸道模型，系统生物动力学模型和剂量学模型所遇到的不确定度的各种主要来源。     

Evolution of grain structure in thin film reactions

In this paper, we examine, both experimentally and theoretically, the kinetics of formation and microstructure of product phases in thin film reactions, using the Nb/Al and Ti/Al systems as our prototypes. The results of calorimetry and microscopy studies are interpreted using simple kinetic and morphology models. In particular, the kinetic models employed here focus on the nucleation and growth components of the phase formation process and the morphology models provide a starting point for the classification of product grain structures. An erratum to this article is available at .     

激光平网雕刻机设计

研制了用于制作平面网版的激光雕刻机，设计了雕刻机用CO2激光器、光路系统及单片机控制系统，探讨了将图像文件转化为控制命令文件的方法。     

采用模数转换技术提高脉冲激光测距的测时精度

针对脉冲激光测距中计数量化误差影响测时精度的问题,本文提出了采用模数转换技术提高测时精度的方法,并进行了可行性与精度分析,理论与实践结果均表明,该方法易于实现,能够容易地将计数量化误差减少若干个数量级。     

A new FMS architecture based upon networked DSP servo technology

This paper presents a critical evaluation of existing FMS architectures and the academic and industrial design and development strategies used during their formulation. The paper seeks to address the need for, and value of, existing architectures within the industrial arena. More importantly however, this paper puts forward a new two-tier distributed control architecture for FMS based upon new (real-time) networkable DSP servo control methodologies developed by one of the authors for Softronics in Australia. The ramifications of these methodologies are substantial, not only in terms of FMS control, but in the overall simplification of such systems and the development of flexible fixturing devices over the coming decade. This paper also postulates on how new FMS architectures can be developed from such technologies and details why such architectures could be more appropriate to industry needs than those that are currently in existence.     

激光熔敷合金层组织及腐蚀磨损特性研究

利用ＣＯ＿２连续激光器在４５钢表面进行了激光熔敷镍基合金、镍基Ｃｒ＿２Ｏ＿３合金和镍基ＷＣ合金，以２Ｃｒ１３不锈钢为对比材料，系统地研究了激光熔敷层在不同冲击速度和腐蚀介质浓度下的腐蚀磨损特性，并根据组织分析、显微硬度测试及腐蚀磨损后的表面形貌观察，探讨了激光熔敷层的腐蚀磨损过程。结果表明：激光熔敷层的腐蚀磨损性能均比２Ｃｒ１３不锈钢好。     

烧成及热处理工艺对钛酸锶铅基热敏材料性能及显微结构的影响

研究了烧成及热处理工艺对钛酸锶铅基热敏材料的阻温特性及显微结构的影响。通过扫描电镜（ＳＥＭ）和能量分散仪（ＥＤＡＸ）分析了材料的显微结构及不同形貌晶粒的成份。通过对组成、烧成及热处理工艺的控制，可得到具有Ｖ型ＰＴＣＲ特性的热敏材料。     

流动注射分光光度法测定钴

研究了将ＰＡＮ用于流动注射（ＦＩＡ）分光光度法测定微量钴，在５６０ｎｍ处绘制标准曲线，线性范围为０～４５μｇ／ｍｌ，相关系数０．９９６，方法的相对标准偏差（ＲＳＤ）小于３％，加标回收率为９５％～１０５％，进样频率８０次／ｈ。本法简单快速，用于面粉、分子筛，铝合金测定结果令人满意。     

增产胺的合成与应用

在相转移条件下合成了增产胺，产率达９４％。田间实验表明，增产胺对大豆具有增加光合作用，促进生长，增花增英，大幅度提高单产的作用。大豆亩产增加３１．４％；大豆的质量明显改善，蛋白质和脂肪含量分别提高１５．３４％和６．５８％。     

智能卡与信息高速公路的数据库

介绍一种用智能卡访问信息高速公路中匿名和可认证数据库的机制。