导弹逼近告警系统可挫败80种导弹

研究结果表明；在培养基中加入一定的核苷酸后，灵芝菌丝增长和子体产量均有显著提高。     

海军数据库结构软件重用的关键因素

软件重用不仅可以节省海军C~4I项目的开发成本、加快系统研制速度,而且可以提高系统的互操作性和质量。本文介绍了美国海军在开发OSS(作战支持系统)过程中使用海军情报数据库、舰队指挥中心作战管理等已有的C~4I项目中的可用程序、数据和数据结构,按照一定的技术标准把它们综合到新系统中的实现方法,并分析了软件重用技术的作用和优点。     

对硬点目标进行战略轰炸的间接摧毁评定的数学分析

前言本文提出了一些数学公式和模型,这些公式和模型关系到在对硬点目标的核攻击中,轰炸摧毁评定其效用的鉴定问题。它包含用轰炸摧毁评定数据对目标摧毁概率进行校准以及对打打——看看——打打战役进行分析的一些新的数学结果。这项系统的工作的完成是主要力量态势研究的一部分,此项态势研究涉及到美国对其战略力量进行核攻击的制止能力。应用本文所推导出的公式与模型对具体的交战行动所同时进行的研究正在进行中,并将在以后的资料中报告。     

Trajectory predictions of new lift separation sabots

This paper presents a modified analytical model to evaluate the trajectories of various lift separation sabot configurations. The aerodynamic forces acting on the sabot surfaces during a supersonic flight are modeled in the present analytical model by incorporating the pressures on the windward side of the sabot due to the detached/attached shock and its reflections and then integrated using the 3-DoF dynamical equations. The trajectory and the aerodynamic coefficients were obtained for these config-urations at a projectile Mach number of 3. The sabot configurations, which include two new designs, are compared with each other and with the conventional free flight trajectory data of the conventional sabots. The mechanical interaction between the sabot and projectile is also addressed in the present work. The comparison shows that the new designs with the aerodynamic surfaces close to the center of gravity, lift-off from the projectile with minimal mechanical interaction compared to a conventional sabot.     

神经网络模型对传感器数据融合的应用

本文描述科霍内(Kohonen)特征映射神经网络模型对于战术和传感器数据融合的应用。用来自现代海军环境的例子评述由数据融合提出的问题。强调了用于海军作战自动监视和支持的目标和任务识别。作为基于神经网络的系统的可应用领域评述了科霍内特征映射模型,研究了它在实际应用中的限制,讨论了如何解决这些问题。描述了使用科霍内特征映射作为基本单元的两个不同的模块化神经网络体系结构和它们应用于数据融合的比较。     

军用计算机程序设计语言

程序设计语言是提高现代军事系统“智商”的一种重要工具。程序设计语言一经选定,不仅确定了系统工程师研制具有能适应各种威胁的系统的能力,而且也会对系统实现(procurment)与所有权代价(cost)产生关键性的影响。毫不夸张地讲,今天对程序设计语言所作的判定将强烈地影响着我们军队明天的武器系统的数目与战斗力。本文首先陈述与军事系统有关的软件问題,然后逐步研究它们对专用程序设计语言的要求及评价现有语言如何满足这些要求。文章着重介绍了Ada的发展状况与国内外的反映,并预测了Ada对未来市场的冲击情况。     

未来的空能海军

空能海军(Air—CaobleNavy),就是把战术飞机布署在大量小型舰艇上,而不是集中在少量非常大的舰艇上的具有空战能力的海军。五十多年来,美国一直拥有与海军合为一体的空中兵力。过去和未来之间的重要差别,在于执行海军的使命和任务中战术飞机使用的范围和程度。未来空能海军的最显著特点,是使日益增多的作为各种飞机基地的舰船使用的广泛程度,而且最普通的舰载机将是直升机和垂直短距起降战斗机。发展空能海军的潜在动机是多方面的,也易于引起误解。最经常被引证的原因是现     

Critical interfaces in body armour systems

The ballistic performance, and behaviour, of an armour system is governed by two major sets of variables, geometrical and material. Of these, the consistency of performance, especially against small arms ammunition, will depend upon the consistency of the properties of the constituent materials. In a body armour system for example, fibre diameter, areal density of woven fabric, and bulk density of ceramic are examples of critical parameters and monitoring such parameters will form the backbone of associated quality control procedures. What is often overlooked, because it can fall into the User’s domain, are the interfaces that exist between the various products; the carrier, the Soft Armour Insert (SAI), and the one or two hard armour plates (HAP1 and HAP2). This is especially true if the various products are sourced from different suppliers.There are between 30 and 150 individual layers within a typical body armour system, and each of the interfaces between each of those layers will, in some way or another, contribute to the ballistic performance of the system. For example, consider the following interfaces/interlayers: (i) the frictional, sliding, inter-ply surfaces within a soft armour pack, and also between the pack and the carrier, (ii) the air-gaps that may develop within the soft armour pack, (iii) the interconnecting space between the soft armour pack and the hard armour plate, (iv) the nature of the interfaces between adjacent plies of a multiplied backing laminate, even in a highly compressed Ultra High Molecular Weight Polyethylene (UHMWPE) variant, (v) the interlayer between the ceramic and its substrate, within a HAP, and (vi) the geometrical fit between two hard armour plates within a stacked body armour system. This paper will provide a User-friendly overview of all such interfaces and provide unique guidance as to their criticality and influence.     

优化设计提高了IFM/DFD接收机精度

通过产地调查与观测，对贵州省绞股蓝适生环境及物候期进行了研究。人工高产栽培，须为其选择和创造适宜的生态条件。