最短路径

Based on the "shortest path matrix", the selected characteristic indices-distance, time and speed, this paper analyses the current spatial structure of accessibility in the cities which the national trunk highway system connects, and impacts the speed index made.

以"最短路径模型"为基础，选取距离与时间两个特征指标以及联结两者的速度指标，分析了目前中国国家干线公路网络联结的城市通达性空间格局。

Highway ; Shortest Path Matrix ; Accessibility Index ; Central Liaoning Urban Agglomeration

高等级公路；最短路径矩阵；通达指数；辽宁中部城市群

Based on the shortest path matrix of 20 cities, we have quantitatively evaluated the highway network development level of the region by the accessibility index, extension index, conglomeration index, and etc. The result shows that in the space structure the highway network development level is a "core-margin" model. The cities with higher accessibility indexes gather around Zhengzhou City, while those with lower ones distribute in the margin. The order among conglomeration index is accordant to that of accessibility index.

以通达指数、伸展指数、趋中指数等为衡量指标，以20个入网城市的最短路径矩阵为基础，对中原城市群区域高速公路网络的发育程度进行定量评价，结果显示：中原城市群高速公路网络在空间格局上呈现明显的"核心－外围"模式，通达指数最高的城市集中在中心城市郑州周围，较低的城市分布在外围地区，且趋中指数排序与通达指数排序相吻合。

The algorithm of multi-objective fuzzy shoretest path and Pareto solution space are discussed, and a method based on fuzzy inference engine is presented to select multiple Pareto solution.

讨论了多目标模糊最短路径的算法与Pareto解空间问题，提出了基於模糊推理引擎选择多个Pareto解的策略。

We analyze the advantages and disadvantages of static and hybrid channel assignment in three aspects: solution space, shortest path, and various traffic patterns, and evaluate the performance by simulation.

我们由解空间、最短路径和变动资料流样式三方面剖析静态频道配置与静动态混合频道配置的方法的优劣，并藉由实验模拟的方式验证。

Probably it can be separated into two kinds. one is qualitative, the other is quantitative. the methods used broad are: layered analytical arithmetic, blurry clustering arithmetic, centrobaric arithmetic, intersectant median arithmetic, ratable arithmetic, p-median arithmetic, meshwork bestrow arithmetic, systemic simnlate arithmetic, genetic arithmetic, blurry qualitfunction arithmetic, minimum route arithmetic, two-double simulate anneal arithmetic.

关于物流中心的选址有很多方法，大致可分为定性和定量两大类，目前使用较多的选址方法有层次分析法、模糊聚类法、重心法、交叉中值法、加权评分法、p－中值法、网络覆盖模型、系统模拟法、遗传算法、模糊品质机能法、最短路径法、双层模拟退火算法等。

Other IP Multicast protocols rely on certain routing protocols, such as Routing Information Protocol or Open Shortest Path First.

其他的ip多播协议都依靠某些路由协议，如路由信息协议或开放式最短路径先行协议等。

Routing tables are continuously built and rebuilt by intelligent discovery protocols, such as Routing Information Protocol or Open Shortest Path First OSPF

路由表由智能发现协议，如路由信息协议或者开放最短路径优先协议，不断地被建立和再建立。

In order to support our viewpoint an experiment is carried out that employs scalable simulation framework to simulate behaviors of the border gateway protocol (BGP4 in short) and the open short path first OSPF in short）.

为了支持上述观点，使用可扩展的网络仿真工具对边界网关协议(BGP4)和最短路径优先协议进行仿真，实验结果表明了提出的分析方法与实际情况的一致性。

Based on this principle, the proposed algorithms, such as fast search for transmission section based graph theory, fast search for flow transferring shortest path and the FTRF, are developed under Microsoft Visual C++ environment by using the Standard Template Library in order to simplify the development effort.

基于以上原理，用C++计算机编程语言编制了基于图论的输电断面快速搜索算法、基于图论的潮流转移最短路径快速搜索算法与基于直流潮流的分布系数法，并运用Visual C++计算机编程语言搭建了输电断面安全性保护的仿真平台。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。