沉淀硬化不锈钢的应用工艺探讨

阐述了沉淀硬化不锈钢（ＺＧｏＣｒ１６Ｎｉ４ＮｂＣｕ３）在铸造、热处理、无损探伤过程中易出现的问题及解决方法。     

一种在理论模线控制下的飞机结构立体图快速画法

绘制飞机结构立体图通常会涉及到飞机外形。由于飞机外形复杂，用传统方法绘制与外形有关的立体图不仅速度慢，而且局限性大。本文介绍一种在理论模线控制下的飞机结构立体图快速画法。     

梦幻文学的思想维度与价值结构——以盛唐文化与明清文学为例

思想维度决定了从什么方向去认识、思考、看待问题。从中国古典梦幻文学的价值体系与思想意蕴的角度来看,思想维度构织着一种创作主体的深层体验和心理定势,由此演绎出一条深邃而感悟的回归之路。     

热处理真空淬火工艺的应用

超高强度钢在普通空气炉和盐炉中热处理后，零件表面氧化脱碳相对比较厚，再返回机加车间精加工，其高强度给机加带来不便。通过改进热处理工艺，采用保护气氛炉或真空炉淬火，在满足机械性能要求的前提下，实现少、无氧化热处理。     

FGDC空间数据标准概况

概述美国联邦地理数据委员会(FGDC)的工作目标、活动宗旨、组织结构及其职责,介绍FGDC在发展空间数据标准方面的基本情况、FGDC标准参考模型的结构和FGDC现有标准的发布状况.     

扭拉试验设备的研究

从测量力值量的3种形式分析扭转试验设备的现状,以力值传递方法对扭拉试验设备进行开发研究,通过系统分析,对设备的技术要求给出相应的设计思想,并提出建议.     

Friction and Wear Properties of Amorphous Carbon Nitride Coatings in Water Lubrication

The friction and wear properties of amorphous carbon nitride(a-CN x)coatings in water lubrication were reviewed.The influences of mating materials and tribological variables such as normal load(W)and sliding speed(V)on the friction and wear properties of the a-CN x coatings were analyzed.It was indicated that the specific wear rate of the a-CN x coatings was related to the hydration reaction of mating materials with water.If the mating materials were easily hydrated,the specific wear rate of a-CN x coatings was low.The water-lubricated properties of the a-CN x coatings were better in comparison to the a-C coatings.The a-CN x/Si-based non-oxide ceramics tribo-pairs exhibited the lowest friction coefficient and wear rate.To describe their friction and wear properties at the normal loads of 3—15Nand the sliding speeds of 0.05—0.5m/s,the wear-mechanism maps for the a-CN x/SiC(Si3N4)tribo-pairs in water were developed.     

An IPC-based Prolog design pattern for integrating backward chaining inference into applications or embedded systems

Prolog is one of the most important candidates to build expert systems and AI-related programs and has potential applications in embedded systems. However, Prolog is not suitable to develop many kinds of components, such as data acquisition and task scheduling, which are also crucial. To make the best use of the advantages and bypass the disadvantages, it is attractive to integrate Prolog with programs developed by other languages. In this paper, an IPC-based method is used to integrate backward chaining inference implemented by Prolog into applications or embedded systems. A Prolog design pattern is derived from the method for reuse, whose principle and definition are provided in detail. Additionally, the design pattern is applied to a target system, which is free software, to verify its feasibility. The detailed implementation of the application is given to clarify the design pattern. The design pattern can be further applied to wide range applications and embedded systems and the method described in this paper can also be adopted for other logic programming languages.     

一种小灯泡的失效分布及其可靠性评定

对两个厂家生产的小灯泡的失效分布进行了一致性检验及拟合优度检验，分析表明，它们的寿命不属同一母体，但均限从对数正态分布，根据可靠性评定的结果，选择可靠性下限较高的A厂的小灯泡是适当的．