降低实时微内核系统中内核封锁粒度的方法

内核封锁较度在很大程度上决定了实时系统的性能。该文说明了实时微内核操作系统在内核封锁粒度方面存在的问题，分析了两种已有处理方法的弊端，提出了一种改进的方法和它的变体。     

面向对象的操作系统抽象层和运行支撑层

嵌入式操作系统在通信领域有着广泛的应用，通信软件经常在不同的嵌入式操作系统之间进行移植。为方便通信软件的开发和移植，引入了嵌入式应用软件开发平台的概念。在嵌入式应用软件开发平台的开发过程中，如何进行面向对象化的操作系统封装对系统的性能有很大的影响。该文就嵌入式应用软件开发平台的操作系统封装层的面向对象化进行了理论上的探讨和应用上的研究。     

徐州电力通信网实时监控系统的建设

介绍了徐州电力通信网实时监控系统所遵循的建设指导原则、监控范围、系统的软、硬件结构及系统所要达到的主要功能。详细 这了该系统的主要技术特点，包括分层系统结构、多设备监控和多协议换、高速的网络通道、多种接入方式、实用的用户应用程序和良好的人机界面等。     

Requirements for a COTS software component: A case study

The goal of the GUARDS project is to design and develop a generic fault-tolerant computer architecture that can be built from predefined standardised components. The architecture favours the use of commercial off-the-shelf (COTS) hardware and software components. However, the assessment and selection of COTS components is a non-trivial task as it requires balancing a myriad of requirements from end-users and the preliminary architecture design. In this paper, we present the requirements and assessment criteria for a specific COTS software component, the operating system kernel. As an interface specification constitutes a major compatibility criterion for the selection of COTS components in GUARDS, a particular emphasis is placed on operating system conformance to the POSIX 1003.1 standard. We discuss the general lessons learned from the assessment process and raise a number of questions relevant to the assessment of any COTS software component.     

UNIX——一个功能强大的开放式操作系统

本文概述了ＵＮＩＸ系统的产生和发展，探析其基本结构和主要特点；阐述了其应用及发展趋势。     

嵌入式实时操作系统Nucleus邮箱通信机制研究

对嵌入式实时操作系统Nucleus邮箱通信机制作了详细的分析与研究，给出了邮箱通信的结构图和各种接口关系，并详细讨论了邮箱功能组件具体实现方法，为进一步更好地开发及利用该操作系统提供了技术上的支持。     

现代海战过程仿真研究

兰彻斯特方程是对作战过程进行仿真研究的有利工具，但是用来分析以反舰导弹为主战兵器的现代海战却存在不便之处。究其原因，现代海战更加符合一个离散事件的特征，而兰彻斯特方程的研究方法是建立时间连续的微分方程组。受兰彻斯特方程的启迪，文章归纳了几个对海战具有重要影响的参数，采用离散模型来模拟研究水面舰艇的导弹攻击作战过程，在利用差分方程组进行分析之后，初步地探讨了作战理论、反舰导弹性能以及防御能力对海战成败的影响。     

虚拟操作训练系统中的过程仿真模型研究

该文深入研究了虚拟操作训练系统的仿真对象，在此基础上得到了过程仿真模型的框架结构。开放式操作响应模型是虚拟操作训练系统过程仿真模型的重要组成部分，该文在分析开放式操作行为特点的基础上，建立了基于产生式规则的操作响应模型，并给出了具体的操作响应模型数据流程。     

Software system of the Earth Simulator

The Earth Simulator (ES) is a large scale, distributed memory, parallel computer system consisting of 640 processor nodes (PN) with shared memory vector multi-processors (64GFLOPS/PN, 5120 APs in total, AP: arithmetic processor). All the nodes are connected via a high speed (16GB/s) single-stage crossbar network called the Interconnection Network (IN).

The operating system for the Earth Simulator is based on SUPER-UX, the UNIX operating system for the SX series scientific supercomputers. In order to realize high-performance parallel processing on the highly parallel machine, the operating system is enhanced for scalability.

The Earth Simulator system is managed as a two-level cluster system called the Super Cluster System. In the Super Cluster System, the Earth Simulator system is divided into 40 clusters (16 PNs/cluster). A single controller called Super Cluster Control Station (SCCS) manages all these clusters. This management system provides Single System Image (SSI) operation, management and job control for the large scale multi-node system.

The Job Scheduler (JS) and NQS running on the SCCS control all jobs of the system. They schedule the resources such as processing nodes and files which have not usually been treated as scheduling resources. This allows efficient scheduling of large scale jobs.

The MPI library (MPI/ES) and the HPF compiler (HPF/ES) are available for distributed parallel programming on the Earth Simulator. MPI/ES conforms to the MPI 2.0 standard and is optimized to exploit the hardware features. HPF/ES conforms to the core part of HPF 2.0 and supports some features of the HPF 2.0 approved extensions and HPF/JA 1.0 extensions. HPF/ES suitably handles the 3-level parallelism of the Earth Simulator system, that is, vectorization, shared-memory parallelization, and distributed-memory parallelization. Moreover, HPF/ES extends the language to easily handle irregular problems.     

单片机应用系统多任务处理的研究

中针对单片机应用系统最常遇到的多任务调度问题，提出了几种解决方法，并结合具体系统给出了相关程序的主要部分。