A Class of Genetic Algorithms on Bilevel Multi-objective Decision Making Problem

1　ＩｎｔｒｏｄｕｃｔｉｏｎＣｏｎｓｉｄｅｒｔｈｅｆｏｌｌｏｗｉｎｇｂｉｌｅｖｅｌｍｕｌｔｉ ｏｂｊｅｃｔｉｖｅｄｅｃｉｓｉｏｎｍａｋｉｎｇｐｒｏｂｌｅｍ[1] :ｍｉｎｘ Ｆ(ｘ ,ｙ) =ｍｉｎｘ (Ｆ1(ｘ ,ｙ) ,Ｆ2 (ｘ ,ｙ)… ,ＦＭ(ｘ ,ｙ) )　Ｍ 2　ｓ .ｔ.Ｇ(ｘ ,ｙ) 0ｍｉｎｙｉｆｉ(ｘ ,ｙｉ)　ｉ =1 ,2 ,… ,Ｐ　ｓ .ｔ.ｇｉ(ｘ ,ｙｉ) 0　ｉ =1 ,2 ,… ,Ｐ ( 1 )ｗｈｅｒｅｘ =(ｘ1,ｘ2 ,… ,ｘＮ)ａｎｄ ｙｉ=( ｙｉ1,ｙｉ2 ,… ,ｙｉｎｉ)ｓｔａｎｄｆｏｒｔｈｅｄｅｃｉｓｉｏｎｖａｒｉａｂｌｅｏｆｔｈｅｕｐｐｅｒ …     

An Analysis of the Kinetic Features of Scissor Elevator Mechanism and Its Optimized Design

A mathematical model has been established for the research on scissor elevator for ship passenger stairs.The kinematical and kinetic simulation analyses were carried out with MATLAB/Simulink.The relative kinetic relation between hydraulic cylinder and other parts,as well as its rules of change has been found.A 3-D model of ship scissor elevator was established with Pro/E.The design of the mechanism was optimized in Pro/MECHANICA based on the findings from simulation analysis.Practice has proved that the design is scientific and reasonable and could serve as the theoretical guidance and reference for the design of scissor mechanism of other uses.     

Novel optimized routing algorithm for LEO satellite IP networks

A lot of routing algorithms have been proposed for low earth orbit(LEO) satellite IP networks in recent years,but most of them cannot achieve global optimization.The dynamic characters of LEO satellite networks are reflected in two aspects:topology and traffic change.The algorithms mentioned above are hard routing which only realize local optimization.A distributed soft routing algorithm combined with multi-agent system(MASSR) is proposed.In MASSR,mobile agents are used to gather routing information activel...     

哈尔滨商业大学60周年校庆公告(第一号)

哈尔滨商业大学庄严向海内外校友及社会各界领导、朋友公告:2012年9月教师节期间,学校将隆重举行建校60华诞庆典活动。校庆的主题是:"总结经验、交流学术、亲近校友、提升合作。"哈商大校友为合校后和原黑龙江商学院与原黑龙江财政高等专     

改性PVC膜电极性能的研究

本文描述了端基为季胺盐的聚氯乙烯(PVC—QA)的合成,并以此做为十二烷基苯磺酸根离子的选择性电极敏感膜,电极响应的线性范围是5.6×10~(-6)～5.5×10~(-3)mol/l,响应斜率是52mV/Pa,漂移小于0.5mV/h,pH适合范围是6.5～8.5。本文还从化学热力学的角度出发探讨了以PVC—QA为敏感膜和以(PVC+游离季铵盐)为敏感膜在性能和机理方面的不同。     

分布交互仿真系统支撑软件的研究

分布交互仿真是一种新兴的仿真技术,是指利用计算机网络将分布在各地区的仿真器和仿真人员联结起来,使众多仿真器在大范围内可进行综合性能测试及培训。     

一种改进的ISAR运动补偿方法

本文针对ＩＳＡＲ外场实验数据,提出一套改进的运动补偿方法。首先用回波动态范围压缩的积累互相关方法进行补偿,再用相位梯度自聚焦算法进一步提高相位对准的精度。用这种方法对实验ＩＳＡＲ外场数据进行处理,得到了高质量的成像结果。     

数字正交滤波器在阵列测向中的应用

基于阵列协方差矩阵特征分解的超分辨率测向技术,在天线阵各通道特性不一致时,其性能会急剧下降。本文提出了一种基于中频采样正交滤波技术的超分辨率测向新方法,该方法可以较好地保证通道的一致性和显著提高测向性能,计算机模拟证实了其有效性。     

一种高可靠的半导体容错存储器的设计

本文首先给出了容错存储器技术发展状况;然后给出了片上容双错的６４ＫＤＲＡＭ系统设计,此系统采用基于扩大的乘积码－ＡＰＣ来纠双错;最后对系统进行了可靠性评估,评估结果显示采用ＡＰＣ码后,系统可靠性有很大提高。