IETM研制的工程管理实践分析

为解决我国IETM（InteractiveElectronicTechnicalManual）研制工程管理中存在的随意性大、规范性差等问题,对装备寿命周期中装备研制工程、综合保障活动和IETM研制活动的关系进行了分析,将IETM的研制过程分为需求与方案论证、详细设计、工程研制与测试、试用与鉴定4个阶段,并对每一阶段的工程管理过程进行了深入分析,给出了相应的要求和规范。研究对于规范我国IETM的研~rJ3x程具有一定的指导意义。     

基于场景图形管理的三维空中态势引擎设计与实现

本文从传统空中信息指挥系统对三维显示的需求出发,以开源图形开发库OpenSceneGraph作为底层渲染引擎,结合OSG的场景图形管理技术和面向对象设计思想,给出了一副大规模空中态势场景的逻辑视图、场景树视图和类视图。以态势场景的构建和管理为核心,设计了一种适合实时显示大规模空中作战态势的三维显示引擎。该引擎实现了大规模地形建模、大规模航迹实时显示、探测器遮蔽算法、多样化视点等关键技术。利用该引擎二次开发的几种三维模块已经运用在实际工程项目中,该引擎具有高效率、跨平台、易集成、易扩展等优势。     

人机工程学领域人体建模技术发展综述

随着数字化技术在现代人机工程学研究领域的普及,人体模型在人机工程研究方面具有重大的应用空间。文中指出了人体建模的重要性,对人体数据采集方法进行了阐述。划分了人体建模技术发展的阶段,并对国内外建模技术发展进行了总结,最后提到人体模型的应用范围十分广泛,有良好的应用前景。     

Quay crane scheduling at container terminals to minimize the maximum relative tardiness of vessel departures

In this paper, we study the problem of scheduling quay cranes (QCs) at container terminals where incoming vessels have different ready times. The objective is to minimize the maximum relative tardiness of vessel departures. The problem can be formulated as a mixed integer linear programming (MILP) model of large size that is difficult to solve directly. We propose a heuristic decomposition approach to breakdown the problem into two smaller, linked models, the vessel‐level and the berth‐level models. With the same berth‐level model, two heuristic methods are developed using different vessel‐level models. Computational experiments show that the proposed approach is effective and efficient. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2006     

【专题】从系统工程视角看无人机自主控制系统

提升无人机的自主控制能力可有效提高无人机在复杂对抗环境下的作战性能。系统工程是指导复杂系统研制的有效手段,采用系统的思维方法,关注系统的整体效能优化实现。系统工程覆盖复杂工程型号生命周期的全流程活动,包括概念论证、工程开发、生产制造、使用服役、综合保障以及系统退出等过程,能够为系统开发中各工程技术的应用,跨专业工程合作以及项目管理建立切实的技术路径。无人机外部应用背景环境与内部体系结构相互交联,是一个典型的“系统之系统”（System of Systems）。无人机自主控制系统是跨域、跨平台的复杂“系统之系统”。本文从系统复杂性出发,介绍了无人机系统组成、自主控制系统以及无人机自主能力等级,以期为无人机自主控制技术的发展提供参考和借鉴。     

论推行综合寿命周期费用控制法

为了走出一条投入较少,效益较高的军队现代化的路子,解决我军武器装备发展与有限国防经费之间的矛盾。根据装备的全系统全寿命管理的一般原理和国外装备寿命周期费用方法,结合国情与军情,首次提出了一套综合寿命周期费用控制法,以便对我军装备的费用进行有效的管理与控制。同时提出了为推广该法当前急需做好的几项工作。     

基于设计体模型的产品数据管理技术

针对电子系统和设备设计的需要，本文提出一种面向产品对象的数据模型——设计体模型。阐述了产品数据的配置管理和版本管理的实施策略。     

序列近似优化方法

随着工程优化中仿真模型精度和计算时间的不断提高,常规的智能优化方法难以在可接受的计算代价中得到最优解。序列近似优化方法通过将近似模型技术引入优化过程,并采用不断更新采样点的方法来指导寻优,在基于计算耗时模型的优化中得到了越来越广泛的应用。通过论述序列近似优化方法的若干关键技术及其发展现状,可有效指导其在工程优化中的应用,并给出了序列近似优化方法可能的改进方法及发展趋势。     

Performance analysis of the cultural and creative industry: a network‐based approach

The cultural and creative industries (CCIs) in Taiwan have gradually contributed to the national economy under the impetus of government policies. We employ a two‐stage data envelopment analysis model with an additive efficiency decomposition approach to measure the profitability and marketability of 22 Taiwanese cultural and creative companies. Furthermore, we employ the network‐based ranking approach to identify benchmark inputs/outputs, and the strengths and weakness of each company. Our empirical results show that the profitability of the cultural and creative companies is better than their marketability. Companies in the industries of publishing, creative life, popular music, and cultural content averagely perform better than those in the other three types of CCIs in terms of profitability. Companies in the creative life industry are on average more efficient than those in the other five types of CCIs in terms of marketability. The profitability/marketability matrix of cultural and creative companies is also presented.     

Understanding the Legitimacy of Armed Groups: A Relational Perspective

Abstract

This paper analyses the multiple pathways through which legitimacy of armed groups is constructed in conflict-affected states. It adopts a political sociological approach to the study of armed group legitimacy. Such a strategy assists in identifying whether armed groups enjoy legitimacy in a given empirical context and avoids applying pre-determined normative criteria. The focus is on three types of relationships: civilian communities, the state or regime in power and external actors including regional and international sponsors, to discern which types of legitimacy matter for armed groups in different relationships.