一种新颖的导弹起竖机构

一种新颖的导弹起竖机构，起竖油缸的上支点可以移动，能缩短起竖油缸的长度，改善起竖机构的受力，为快速起竖大型导弹探索了一条新途径。     

Technology transfer projects in developing countries—furthering the Project Management perspectives

This paper attempts to broaden the analysis of the technology transfer phenomenon by refocusing research attention on the level of performance assessment of technology transfer projects. An holistic evaluation framework based on the considerations of an extended Project Life Cycle model is proposed to overcome some of the shortcomings of conventional approaches to project evaluation. This also reinforces the need for open systems thinking in assessing and managing risk of technology transfer projects. The discussion is based on two case studies which articulate the experiences with two integrated mechanisms of technology transfer used in Algeria from 1965 to 1990: turnkey and “product-in-hand”. The aim is to gain a better understanding of the processes of technology transfer and to contribute to the improvement of associated managerial practices in developing economies.     

CCD相机调制传递函数的测试原理分析

对于CCD相机的空间分辨率特性,通常用调制传递函数来表征.基于调制传递函数理论分析值与具体的实验测试值存在差别,分别对分辨率板在焦平面所成的像与CCD像元之间的偏移量和积分时间内被摄物体与相机的相对运动产生的像移对相机调制传递函数的影响进行了分析.讨论了调制传递函数与对比调制传递函数之间的联系和区别.     

技术转移对我国制造业企业创新绩效的影响

分别对高新技术企业与一般工业企业、大型企业与中小型企业进行了对比分析，发现高新技术企业比一般工业企业更有吸收能力，而技术转移对中小企业的影响比大型企业大。对参与技术转移及未参与技术转移的制造业企业进行了比较研究，结果证明有技术转移行为的企业具有更优的创新绩效。     

建筑墙体表面传热系数辨识研究

对实验房间南向墙体内表面中心区域的换热过程进行实验，发现当风速在0－5．5m/s之间时，表面传热系数在8－18W（m^2.K）之间波动，而风向对墙体表面传热系数影响不大；用辅助变量法分析墙体表面传热过程，并结合实验推导出墙体表面传热系数。模型的预测结果与实测结果吻合良好。     

非关联双模场对Kerr介质中电子绝热跃迁转移现象的影响

本文研究了充满Kerr介质的高Q腔中非关联双模相干态场与级联三能级原子非共振相互作用情况下,电子的绝热跃迁转移现象与非关联场之间的关系。数值计算显示:级联三能级原子在与非关联双模相干态的相互作用下,该现象依然存在,但呈现不同于原子与关联场相互作用的新特征。     

基于混沌电路的一种混合噪声调制雷达引信

提出了一种基于混沌电路的随机脉位调制（RPPM）和随机二相码调相（RBCPM）混合调制的雷达引信系统。介绍了该引信波形的数学模型，平均模型函数及引信的实现框图和工作原理，研究了基于混沌电路的混合调制信号的产生方法，这种引信波形不仅具有结构简单和易于处理等特点，而且具有良好的测距和测速性能，以及极低的截获概率和很强的抗干扰特性。     

高炮火控系统滤波器的设计

对目前高炮火力控制系统目标滤波与预测进行了分析与研究．在此基础上结合工程实际设计了一种α-β滤波器．该滤波器的原理是把在连续系统中频率域的要求和在离散系统中Z域的要求转换成时域中在典型信号激励下的时间响应的特征值的要求．从而在时间域中以特征值的要求进行综合．再把综合的结果转换回Z域中．最终得到所确定的α-β滤波器．文中给出了α-β滤波器的Z传递函数．分析了α-β滤波器参数的确定．对α-β滤波器的静态误差进行了研究．对设计方案进行了计算机仿真和实际应用．     

Specification methods for material-handling control algorithms in flexible manufacturing systems

Good methods are needed to specify, test, and debug material-handling control logic. This article surveys a number of representative methods for defining and describing control algorithms for programmable material-handling equipment used in flexible manufacturing systems. The methods are evaluated with regard to their suitability for communication between people and as bases for interfaces to automatic program generators. It is concluded that no single method is entirely satisfactory. Three methods (position diagrams, function block diagrams, and operation networks) have potential to be combined into an effective hybrid approach that minimizes the need for the user to switch between various conceptual models.