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本文介绍了如何采用软件移植的方法在LLC3通信平台上的实现MMS协议,具体做法是对LLC3通信平台的功能进行提升和扩充,在其上建立一套Socket仿真接口,向上层应用软件提供标准的Socket功能调用,为原来基于TCP/IP平台工作的MMS软件提供一个友好的仿真工作环境,从而实现了MMS协议软件向LLC3通信平台的移植。 相似文献
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解除微机口令的简单方法(430070武汉华中师范大学计科系)左亚尧,舒忠梅1.解除386/86微机CMOS口令在386系列微机上都增加了CMOS的“PASSWORD”选项,用于设置对CMOS的修改权。这可防止CMOS信息被非法修改.但时间长了,设置的... 相似文献
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Windows TCP/IP平台上MMS通信系统研究与实现 总被引:2,自引:0,他引:2
Windows TCP/IP是当今流行的应用和开发平台。MMS(制造报文规范)是计算机网络应用层的重要标准之一,适合于CIMS和自动化系统通信。本文首先介绍MMS协议规范和Widnows TCP/IP开放系统平台,接着探讨了在Windows TCP/IP平台上开发MMS通信系统的方法和步骤,最后给出MMS通信系统实现流程。 相似文献
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孙亚民 《计算机应用与软件》1997,14(1):30-34
单元控制器是CIMS的重要组成部分,CIMS的多变的需求环境要求单元控制器具有开放的体系结构,本文介绍了支持单元控制器互连的计算机网络技术和协议,以及在TCP/IP网络上单元控制器互连和MMS子集的实现。 相似文献
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CIMS(计算机集成制造系统)是世界上高技术开发项目之一.CIMS是涉及广泛技术领域的复杂系统,当前的研究课题覆盖了CIM中方法学、技术和应用领域的部分内容.本文简要讨论CIMS的国际发展动态. 相似文献
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CSCW和WFMS是计算机领域一个新的研究方向,用CSCW和WFMS方法去扩充MIS系统,是MIS系统建设的新的切入点。本语文探讨了用CSCW和WFMS方法扩充MIS系统的可能性和实施策略。 相似文献
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介绍了CIAC-综合结构信息系统上两个部分组成,即CIAC-^13CNMR图数据库和结构解析专家系统ESESOCESESOC可从未知化合物的分子式。光谱数据(IR,MS,1HNMR,13CNMR,2D-NMR等,)及其它化学信息自动地推衍出与已知信息相一致的候选化合物结构。 相似文献
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The structure of a discrete large-scale system is analyzed. It is shown that a discrete large-scale system can be considered with a multi-layer structure, each layer of which can be considered as a minimal strongly connected system (MSCS), except the highest layer which is a simply connected system. In studying the stability, a direct method is firstly presented for MSCS. Analysis and examples show that the stability criteria given here for MSCS are less conservative than those in other literature. When the isolated subsystems in each layer (which are also MSCS) are stable, the large-scale system is stable. 相似文献
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Modeling and nonlinear computed torque control of ship-mounted mobile satellite communication system
A mobile satellite communication system (MSCS) is a device installed on a moving carrier for mobile satellite communication. It can eliminate disturbance and maintain continuous satellite communication when the carrier is moving. Because of many advantages of mobile satellite communication, the MSCSs are becoming more and more popular in modern mobile communication. In this paper, a typical ship-mounted MSCS is studied. The dynamic model of the system is derived using the generalized Lagrange method both in the joint space and in the workspace. Based on the dynamic model, a nonlinear computed torque controller with trajectory planning is designed to track an aimed satellite with a satisfied transient response. Simulation results in two different situations are presented to show the tracking performance of the controller. 相似文献
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本文讨论了如何在 MSCS的基础之上 ,利用 MSCS的某些特性来帮助实现应用服务器的动态负载平衡 ,并实现对会话的支持 . 相似文献
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Cairui YAN Huifang MA Qingqing LI Fanyi YANG Zhixin LI 《Frontiers of Computer Science》2023,17(5):175335
Community search is an important problem in network analysis, which has attracted much attention in recent years. As a query-oriented variant of community detection problem, community search starts with some given nodes, pays more attention to local network structures, and gets personalized resultant communities quickly. The existing community search method typically returns a single target community containing query nodes by default. This is a strict requirement and does not allow much flexibility. In many real-world applications, however, query nodes are expected to be located in multiple communities with different semantics. To address this limitation of existing methods, an efficient spectral-based Multi-Scale Community Search method (MSCS) is proposed, which can simultaneously identify the multi-scale target local communities to which query node belong. In MSCS, each node is equipped with a graph Fourier multiplier operator. The access of the graph Fourier multiplier operator helps nodes to obtain feature representations at various community scales. In addition, an efficient algorithm is proposed for avoiding the large number of matrix operations due to spectral methods. Comprehensive experimental evaluations on a variety of real-world datasets demonstrate the effectiveness and efficiency of the proposed method. 相似文献
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针对高等学校教务管理系统客户访问的并发性、高可用性和可伸缩性的特点,以及高等学校办学规模、办学模式和办学层次等问题,提出了分别利用MSCS、NLB集群技术解决教务管理系统中的数据库、WEB服务的硬件系统问题,有效解决了教务管理系统的复杂多变、各种数据不能够唯一存在和实时变化等难点,建立了适合普通高等学校教务管理系统需求的软硬件环境。 相似文献
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面对日益剧增的城市建筑物,合成孔径雷达(synthetic aperture radar,SAR)图像的建筑物检测作为SAR图像解译的一个分支逐渐成为一项重要的研究课题。对现有的研究方法进行了分类,从基于传统方法的建筑物检测和基于深度学习的建筑物检测两方面入手,对现有SAR图像的建筑物目标检测算法进行了梳理。简述了SAR图像的特点和SAR图像建筑物检测任务的整体流程,介绍了基于建模、纹理特征和机器学习的方法以及深度学习的目标检测方法。重点论述了当前基于候选区域和回归的主流检测方法。对各类方法的优势和局限性进行对比分析,总结了当前SAR图像建筑物检测技术存在的主要问题和发展瓶颈,并给出相应建议。最后对该领域未来的研究方向进行了展望。 相似文献
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基于知识的机器人视觉测量分类与进展 总被引:1,自引:0,他引:1
提出了基于知识的视觉测量的观点,将传统的立体视觉看作一种基于摄像机知识的视觉测量,并对当前其他的视觉测量方式按所采用知识的不同进行了分类.分别简要介绍了基于点、线、面、统计特性等目标知识的视觉测量,讨论了基于运动知识的视觉测量和基于环境知识的视觉测量.在对视觉测量所采用知识的表达和获取进行初步探讨的基础上,给出了视觉测量的几个值得深入研究的发展方向. 相似文献
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Thakkalapally Preethi B. B. Amberker 《Information Security Journal: A Global Perspective》2020,29(6):366-381
ABSTRACT Group signature is a cryptographic primitive where any member can anonymously sign a message on behalf of the population they belong to. Several group signatures were proposed based on number-theoretic assumptions. All these schemes are insecure in the presence of quantum computers. Group signatures based on lattice assumptions are believed to be quantum-resistant. In the past few years, group signatures based on lattice assumptions have been proposed and most of them are proved to be secure in random-oracle model. This paper presents a lattice-based group signature scheme without using random-oracle. Our scheme is based on correlation-intractable function ensembles for all evasive relations which are constructed recently based on well-defined assumptions. Security of our scheme is proved based on correlation-intractable function ensembles and hardness of Short Integer Solution and Learning With Errors problem. 相似文献