公共文化服务平台

共 5 条记录，以下是 1-9

全选清除导出

排序方式：

添加捷径对环状DEDS的影响分析被引量：2: 2011年; 研究具有环性拓扑的离散事件动态系统添加捷径后的时序性能变化问题.分析了添加捷径对周期长度和周期时间的影响.发现添加少量捷径即可使周期长度为1的概率有显著提高.; 赵千川; 关键词：离散事件动态系统

PLC程序测试与验证的研究进展被引量：12: 2011年; 可编程逻辑控制器(PLC)是一种在工业领域应用非常广泛的控制装置。随着PLC程序的规模和复杂性不断增加,PLC程序测试与验证已成为一个具有挑战性的问题。该文分析了PLC程序测试与验证的困难。从验证与测试两个方面,分别介绍了该问题的研究现状。对于每一个方法,分别论述了其基本思路、优势与不足。最后,根据当前研究的现状,展望了PLC程序测试与验证技术未来的发展。综合分析来看,PLC程序测试与验证的现有方法都存在比较明显的局限性,有待深入研究。未来可能的新方向包括结构化测试以及不同测试方法的融合等。; 赵千川王达薛文轩; 关键词：PLC程序形式化方法

基于图像内容检索描述符提取的加速方法研究: 图像低级特征的提取和索引是基于内容图像检索的必要阶段,但传统的针对大尺寸和大容量图像的低级特征提取通常比较耗时,而这类图像的检索又是互联网图像检索的发展趋势。本文提出一种基于压缩采样的随机化特征提取方法,该方法通过随机模...; 桂舒婷赵千川Weibo Gong秦龙郑烇; 关键词：压缩采样; 文献传递

基于cc2430的环境参数监测和人员定位被引量：1: 2012年; 本文详细阐述了基于cc2430进行环境参数监测和人员定位的硬件和软件设计。本设备综合使用了无线传感器网络、高精度传感、实时监测等技术,旨在为具备环境监测需求的各个行业提供强有力的技术支持和保障,并使用基于RSSI进行的人员定位算法。; 臧峰赵千川慕春棣; 关键词：环境监测无线传感器网络

An effective framework to simulate the cyber-physical systems with application to the building and energy saving: ＜正＞The simulation and modeling are significant to design,test and validate the complex systems,especially for ...; WANG JinlongZhao QianchuanZhao Yin; 关键词：AGENT-BASED SIMULATION; 文献传递

不确定环境下的电力系统拓扑控制问题(英文): 2012年; 在环境保护的压力下,新能源和电动汽车越来越多地被引入电网,这就增加了电力系统的不确定因素.为此,首先讨论不确定环境下电力系统安全防御中的一些拓扑控制问题,然后给出这些问题的图论描述以及研究中面临的挑战和进展.; 赵千川申颖; 关键词：智能电网

Production Line Capacity Planning Concerning Uncertain Demands for a Class of Manufacturing Systems with Multiple Products: 2015年; In this paper, we study a class of manufacturing systems which consist of multiple plants and each of the plants has capability of producing multiple distinct products. The production lines of a certain plant may switch between producing different kinds of products in a time-sharing mode. We optimize the capacity configuration of such a system0s production lines with the objective to maximize the overall profit in the capacity planning horizon. Uncertain demand is incorporated in the model to achieve a robust configuration solution. The optimization problem is formulated as a nonlinear polynomial stochastic programming problem, which is difficult to be efficiently solved due to demand uncertainties and large search space. We show the NP-hardness of the problem first, and then apply ordinal optimization (OO) method to search for good enough designs with high probability. At lower level, an mixed integer programming (MIP) solving tool is employed to evaluate the performance of a design under given demand profile. © 2014 Chinese Association of Automation.; Hao LiuQianchuan ZhaoNingjian HuangXiang Zhao; 关键词：MANUFACTURE OPTIMIZATION

On Operator Expressions of Monotone Boolean Networks: The study of Boolean networks received a lot of attention recently as a useful model to understand complicated...; ZHAO Qianchuan Center for Intelligent and Networked Systems,Dept Automation and TNList,Beijing 100084,P.R.China; 关键词：UNIFORMITY; 文献传递

On topology control of power systems with uncertainties: ＜正＞Environment protection calls for the more and more introduction of new energy sources and e-vehicles in our...; Qianchuan Zhao~1; 文献传递

全选清除导出

共1页<1>

国家自然科学基金(61074034)