装备综合保障包评价方法研究

开展装备综合保障包评价方法研究的目的,是从要素、特性、数据以及信息等几个角度定量和定性的对综合保障包的生成过程及成果予以评价,论证并分析保障包评价实施的过程、指标体系和评价模型,为后续装备保障包的研制和使用单位提供评价方法和技术支撑。本文根据美军装备综合保障理论研究的最新成果,通过系统研究美军装备综合保障系统的相关文献及相关系统的开发经验,在综合保障包理论研究、研制要求和研究成果的基础上,主要研究构建了装备综合保障包技术体系所需的有效的评价方法,同时研究了如何开展综合保障包的评价工作,明确了评价的主体和客体、评价目标、评价步骤、评价内容和评价方法。通过上述研究,构建了装备综合保障包技术体系所需的评价方法,并将其应用于装备综合保障体系中,解决了评价指标和评价标准模糊性的问题,既克服了人为主观臆断,又使评价结果更加科学准确,为新体制下装备综合保障体系建设的进一步发展提供了参考和支撑。     

Simulation and video software development for soil consolidation testing

The development techniques and file structures of CTM, a novel multi-media (computer simulation and video) package on consolidation and laboratory consolidation testing, are presented in this paper. A courseware tool called Authorware proved to be versatile for building the package and the paper shows in details how the file structure of CTM is implemented within Authorware. In the audio–visual parts of the package background information, animations on consolidation theory and practice as well as standard and large-scale model consolidation tests, are shown. Running the package in a multi-user examination-type setting proved to be effective for learning and control of the learning process. Content-oriented multiple-choice questions on the theoretical and professional aspects of the test are posed, and users response is evaluated and reported on log files. Student users have responded positively to this development indicating minor future improvements.     

基于Moodle的《电子商务基础》网络课程的设计与开发研究

Moodle是一个用来建设基于Internet的课程和网站的软件包,本文主要从基于Moodle网络教学平台的选择、网络课程的创建及应用实例等几方面来阐述利用Moodle平台开展网上教学及实施效果。     

Problem Oriented Software Engineering: Solving the Package Router Control Problem

Problem orientation is gaining interest as a way of approaching the development of software intensive systems, and yet, a significant example that explores its use is missing from the literature. In this paper, we present the basic elements of Problem Oriented Software Engineering (POSE), which aims at bringing both nonformal and formal aspects of software development together in a single framework. We provide an example of a detailed and systematic POSE development of a software problem: that of designing the controller for a package router. The problem is drawn from the literature, but the analysis presented here is new. The aim of the example is twofold: to illustrate the main aspects of POSE and how it supports software engineering design and to demonstrate how a nontrivial problem can be dealt with by the approach.     

Adorning VRML worlds with environmental aspects

Little work has so far been done to add environmental aspects into VRML architectural models. These observations led us to develop a software package named VREnhancer to address this problem. With our project, we aimed to design an effective approach for adding environmental aspects to VRML architectural models. This approach tries to give VRML worlds greater realism and better visual quality while maintaining an acceptable navigation speed. VREnhancer has provided VRML world creators more flexibility and feasibility to adorn and change their designs. This article looks at the development of the project, its design and implementation, and the related technology, It also evaluates VREnhancer through adorning the virtual campus of Hull University, UK, with environmental aspects.     

Graphics geometric perception and communication

The Pennsylvania State University Computation Center is currently performing research and development in the areas of communication and perception to expand a user's ability to function in a dynamic interactive computer graphics environment. One aspect of this research is the development of an on-line approach to graphics comprehension and learning through user-interaction with geometric imagery on a cathode-ray-tube. Such geometric imagery allows fundamental concepts of computer graphics to be readily conveyed to the user with or without the guidance of a knowledgeable graphics programmer. This paper, together with a film, describes the nature of such an approach. The film illustrates some of the aspects of system/user-interaction embodied in the geometric perception and communication package in development at the Computation Center.     

电子书包发展现状与问题探究

当前,电子书包逐步取代传统书包已经成为世界教育领域中不可阻挡的一种潮流.本文通过对相关文献的大量检索并采用文献综述的方法对这一趋势进行了梳理和分析.首先,回顾了电子书包正在迅猛发展的基本背景;接着,分别针对电子书包的定义、发展现状以及发展中遇到的问题进行了专题研究探讨.未来,电子书包的健康快速发展需要严肃对待并认真解决这些问题.     

面向方面测试方法的研究

面向方面编程(AOP)允许程序员将跨越多个模块的横切关注行为封装到一个可重用的模块中,极大地增强了系统的可维护性和代码的重用性。但这样的新特性也给测试带来了新的挑战,因为方面与原始模块之间错综复杂的依赖关系可能导致新的错误,从而使得传统的测试方法不能很好适应。以AOP错误模型为基准,对四种具有代表性的AOP测试方法发现错误的能力和有效性进行了深入详细的研究和对比,分析总结了目前面向方面测试技术领域存在的主要问题以及将来的发展方向。     

关于插画艺术在包装设计中的应用思考

探讨了在知识经济全面发展的背景下,插画艺术和包装设计结合的日益普遍的原因,并结合时代、社会、市场的发展要求提出新时期包装设计所面临的挑战。最后从市场、情感、民族和社会审美等角度出发,论述了应用当今插画艺术的包装设计所要遵循的原则。在满足商业需求的同时,探寻一条本土化的包装设计之路。     

优化系统架构 提升消费提醒实时性

随着业务的发展,现有的套餐内各种免费量抵扣范围和共享规则越来越复杂,出现了可选包、加装包等多重营销的免费量共享组合以及跨套餐的免费量共享模式。为用户能够更清晰明了地掌握套餐内和套餐外的实时消费情况,本文通过对现有短信提醒模型的设计优化,使短信提醒模块在功能、性能和套餐覆盖范围上都有较大提升,扩大了前台免费量使用查询的范围,达到用户前台可解释的目标。使广大用户可以享受到实时提醒带来的更多便捷,真正做到"轻轻松松使用,明明白白消费"。     

Determination of minimum cutting tool paths in the presence of barriers

A software package is described that finds a minimum path tour for traveling salesman problems with barriers or obstructions blocking straight line travel. The package contains modules to (1) determine whether or not nodes (destinations) can be connected by straight lines, (2) find the shortest path between pairs of nodes if barriers are present, and (3) compute the minimum tour to visit all nodes and avoid barriers. The user may choose a tour that minimizes distance or minimizes time of travel. The latter assumes constant accelerations and declerations, and steady state tool velocity. Illustrations and sample calculations are presented. The set of algorithms in the software package is a heuristic although some aspects such as the shortest path calculations are optimal.     

AIDA and medical courseware

For more than a decade the Department of Medical Informatics has offered one-week training courses on the subject of computer applications in medicine and health care. Since 1983 two courses are given at a rate of one course every two weeks. One course is on programming and problem solving and consists of three modules of increasing complexity in techniques and methods in programming and structured system development. This course focusses on only some aspects of medical informatics: the development of a medical information system, and the problems occurring in the process of automation. These aspects, however, are dealt with in detail. To this end the students are trained in using the programming system MUMPS and the fourth-generation software package AIDA. The second, introductory course is an intensive training on several distinct areas of man-machine interactions. It contains lessons in the fields of communication and recording; storage and retrieval and databases; computation and automation; recognition and diagnosis; and therapy and control. This paper describes the use of AIDA in developing and maintaining lessons for the latter course, and the assistance of AIDA for teaching purposes in the former course.     

Process identification using finite impulse response models : A solution to the 1992 Canadian chemical engineering conference process identification workshop problem

The process model identification problem described by Cott was solved using Dynamic Matrix Identification (DMI), a commercial software package that produces finite impulse response (FIR) models. Unique aspects of FIR models and the results of the workshop problem are discussed.     

Criteria: a package for computer-aided control system design

Criteria is an interactive computer-aided control systems design package based on Zakian's criteria. The package embodies a number of simple yet effective algorithms and forms an efficient design tool that has been successfully applied to many engineering problems. The package also offers facilities for computer-aided teaching of control systems design and provides a powerful program base for advanced research. The development of the package is described, with a short overview of the theory, algorithms and applications.     

Automatic code compliance with multi-dimensional data fitting in a BIM context

BIM-based tools can contribute to addressing some of the challenges faced by structural engineering practitioners. A BIM-based framework for the development of components that deliver Automatic Code Compliance (ACC) is presented. The structural design problems that such components solve are categorised as simple, where ACC can be implemented directly, or complex, where more advanced approaches are needed. The mathematical process of Multi-Dimensional Data Fitting (MDDF) is introduced in order for the latter, enabling the compression of complex engineering calculations to a single equation that can be easily implemented into a BIM software engineering package. Proof-of-concept examples are given for both cases: offsite-manufactured structural joists are utilised as a non-recursive example, implementing the results obtained in the manufacturer’s literature; the axial capacity of metal fasteners in axially loaded timber-to-timber connections are utilised as an example of recursive problems. The MDDF analysis and its implementation in a BIM package of those problems are presented. Finally, the concept is generalised for non-structural aspects at a framework level, and the challenges, implications, and prospects of ACC in a BIM context are discussed.     

An integrated package for drought monitoring,prediction and analysis to aid drought modeling and assessment

Due to severe drought events and disastrous impacts in recent decades, substantial efforts have been devoted recently to drought monitoring, prediction and risk analysis for aiding drought preparedness plans and mitigation measures. Providing an overview of these aspects of drought research, this study presents an integrated R package and illustrates a wide range of its applications for drought modeling and assessment based on univariate and multivariate drought indices for both operational and research purposes. The package also includes statistical prediction of drought in a probabilistic manner based on multiple drought indicators, which serves as a baseline for drought prediction. The univariate and multivariate drought risk analysis of drought properties and indices is also presented. Finally, potential extensions of this package are also discussed. The package is provided freely to public to aid drought early warning and management.     

第一性原理计算软件包在GPU集群上的加速

第一性原理计算软件在密度泛函理论的发展中起着重要作用。相比平面波方法,局域轨道法更适合处理大规模多体问题。随着问题规模的不断增大和计算机计算能力的提升,软件的并行加速成为一个重要课题,MPI（message passing interface）结合GPU（graphic processing unit）实现的异构并行是一个新的解决方案。基于局域轨道法的第一性原理计算软件MESIA（massive electronic simulation based on systematically improvable atomic bases）经过MPI＋OpenMP＋CUDA三级并行,单GPU取得了约15倍的加速比,同时表现出了良好的可扩展性。测试结果同时验证了使用GPU计算可以保证计算精度。