一种时延受限的最优时延抖动路由算法

研究多播端到端时延受限条件下的最优时延抖动问题,提出一种有效的多播路由算法。通过修改源节点到目的节点的路径,使时延较小的目的节点获得尽可能大的时延值,时延较大的目的节点获得尽可能小的时延值。仿真结果表明,该算法能获得较小的时延抖动。     

“数据结构”课程中Floyd算法教学方法研究

Floyd算法是“数据结构”课程里的一个经典算法,但其原理却难以掌握,影响到该算法的教学效果。本文从求最短路径的基本思想出发,对Floyd算法的原理进行了剖析,并给出了该算法的正确性证明,有助于学生理解和掌握该算法。     

基于Flash技术的校园信息导航系统的设计与实现

介绍以Flash技术为开发工具的上海交通大学闵行校区校园信息导航系统的实现过程,并重点阐述校园导航系统的核心——信息查询和点对点最短路径查询的实现。     

基于时间差定位法的电力系统扰动源定位

在大规模互联电网中系统频率动态具有时空分布特性,且传播速度远低于光速。借助电网频率动态的传播特性及不同节点处频率响应的时间差对电网的扰动源进行定位,首先利用Floyd算法计算各节点之间的最短传播路径,根据传播路径的物理参数确定传播速度,然后借助时间差定位法（TDOA）对电网的扰动源进行定位,最后将所提方法应用于3机9节点系统和某实际电网,分析结果表明该方法能够有效地对电网的扰动源进行定位。     

基于Kruskal和Floyd算法的馈线新增负荷接入方法

规划人员一般采用简单的方法对配电网网架进行扩展,以应对配电网有新增负荷节点出现的情况,这可能导致电压质量达不到要求或配电网运行不经济等问题。提出一种基于Kruskal和Floyd算法配电网新增负荷的接入方法,该方法计及了新增负荷前配电系统的无功配置情况。通过Kruskal算法得到配电网网架初始结构,以满足供电半径为目标,运用Floyd算法得到新增负荷接入线路的次短路径,当电压不满足要求时,采用无功二次精确矩法确定无功补偿点的位置和补偿容量,以保证系统的电压质量,并进一步降低线损。对算例进行数字仿真,仿真结果验证了该方法的可行性和实用性。     

巡逻攻击导弹协同侦察航路规划研究

为了充分发挥巡逻攻击导弹巡逻侦察能力,研究了巡逻攻击导弹侦察航路规划.首先,在威胁建模的基础上,基于图论思想将巡逻侦察航路规划问题转化为哈密顿圈问题;然后,提出了基于Floyd算法和改良圈算法的航迹规划算法,求取了初始航路;最后采用三次B样条对航路进行优化,得到可飞航路.仿真结果表明该方法简单实用.     

American Psychological Association Distinguished Scientific Contribution Awards, 1965.

Presents the 1965 award winners and a listing of the previous winners of the American Psychological Association Distinguished Scientific Contribution Award. The stated purpose of the awards is to honor "outstanding contributions to the science of psychology." Three award winners were announced for 1965: Floyd Henry Allport, Fritz Heider, and Paul Thomas Young. The Awards for Distinguished Scientific Contribution are presented by the Association at the Annual Convention. Each winner was presented with an engrossed citation of his formal contribution to the development of scientific psychology and a check for one thousand dollars. These psychologists have agreed, in accordance with what is established custom, to give addresses on some phase of their scientific work at the convention in 1966. The presentation of the awards was made by James J. Gibson, Chairman of the Committee for Selecting the Recipients of Awards for Outstanding Contribution to Scientific Psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Floyd H. Allport: American Psychological Foundation Gold Medal Award: 1968.

At the annual meeting of the American Psychological Association in 1968, the American Psychological Foundation (APF) announced the recipient of the APF Gold Medal Award. The presentation was made by Kenneth E. Clark, President of the APF, to Floyd H. Allport. As professor of social and political psychology in the Maxwell Graduate School of Citizenship and Public Affairs, Allport directed the first doctoral program in social psychology in the US. Although Allport's experimental work first appeared in 1920, his major impact came with the 1924 appearance of his Social Psychology. His interests in the late 1920s and early 1930s were the investigation of social attitudes and the study of institutional behavior. Allport's contributions have had two major consequences: (a) he shaped the field of social psychology as an area concerned with the basic problems of social influence in which measurement of human behavior is the primary focus, and (b) he furnished the rationale and the example for the behavioral trend in the social sciences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Obituary: Floyd H. Allport (1890-1978).

October 15, 1978 was a dark day for psychology, for it marked the passing of one of its Olympian figures, Floyd Henry Allport. Floyd Allport was the father of experimental social psychology. He was the first to apply experimental methods systematically to the study of group process and social relationships. Social psychology is often assigned 1908 as its birth date because that is the year Edward Ross and William McDougall brought out their systematic treatises on social psychology. But it was not until the appearance of Allport's Social Psychology in 1924 that we had a text based heavily on experimental and research studies. This text made the field, which before its appearance had seen few and scattered courses. Moreover, Allport's continuing contributions in the form of theory and research marked the major avenues along which social psychology was to travel in later decades. Allport was both a distinguished theorist and a creative methodologist. His early formulation of a sophisticated behaviorism and his later event-system theory anticipated developments in the field and in some respects are still in advance of them. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于宏与全局变量Floyd并行算法的性能对比

在Ubuntu操作系统上,实现多线程并行的Floyd算法。对实验数据分析表明,基于全局变量定义代价矩阵A大小的并行程序所获得的并行性能要优于基于宏参数定义矩阵A大小的并行程序的性能。这与相应的用宏参数定义矩阵A大小的串行程序性能要更优的结果相反。