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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第1期12卷 55-64页

作者： wei ZHANG Quan-wei wei Zheng-chao wang wei ding wei wang Fang-xiong SHI Laboratory of Animal Reproduction College of Animal Science and Technology Nanjing Agricultural University Nanjing 210095 China

Objective: The present study is designed to investigate the cellular expressions and immunolocalizations of three different nitric oxide synthase (NOS) isoforms and the related nitric oxide (NO)/cyclic guanosine monophosphate (cGMP) signaling pathway in the ovaries of neonatal and immature ***: The ovaries were obtained from ICR (Institute for Cancer Research) female Sprague-Dawley rats at postnatal days 1,5,7,10,and *** we carried out the histologic examination,immunohistochemistry,measurement of NOS activity,and modifications within the NO/cGMP ***: During postnatal days 1,5,7,10,and 19,all three isoforms of NOS were mainly localized to the oocytes and expressed as a gradual increase in granulosa cells and theca cells within the growing *** ovarian total NOS activities and NO levels were increased at postnatal days 7 and 10 compared with other ***: Our findings suggest that the locally produced NO and the NO/NOS signaling systems are involved in the follicular development to puberty.

关键词： Nitric oxide synthase Nitric oxide (NO)/cyclic guanosine monophosphate (cGMP) pathway Ovary Neonatal rats Prepuberty

Model and algorithm for optimization of rescue center location of emergent catastrophe

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Frontiers of Electrical and Electronic Engineering in China 2006年第3期1卷 265-268页

作者： wang ding-wei ZHANG Guo-xiang Institute of Systems Engineering Northeastern UniversityShenyang 110004China

The location of rescue centers is a key problem in optimal resource allocation and logistics in emergency *** propose a mathematical model for rescue center location with the considerations of emergency oc-currence probability,catastrophe diffusion function and rescue *** the catastrophe diffusion and res-cue functions are both nonlinear and time-variable,it cannot be solved by common mathematical programming *** develop a heuristic embedded genetic algorithm for the special model *** computation based on a large number of examples with practical data has shown us satis-factory results.

关键词： emergent event emergency response location optimization genetic algorithm heuristic algorithm.

Research on dynamical derailment system for CRH

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Engineering Sciences 2011年第4期9卷 51-54页

作者： wang wei ding Jiexiong University of Electronic Science and Technology of China Chengdu 611731 China

Based on an improved three-dimensional wheel-rail contact trace algorithm and a new model of wheel-rail contact force, wheel-rail derailment dynamical model is established on China Railways High-speed（CRH） vehicle and developed in MATLAB software, which is called dynamical derailment system for CRH （DDSCRH）. Analyzed on dynamical derailment process of high speed vehicle by DDSCRH, the critical position on chmb wheel and influence factors on lateral force for derailment are obtained. Finally, high-speed vehicle dynamical simulation is verified on DDSCRH by comparing with the existing results of the line test.

关键词： wheel-rail contact derailment vehicle dynamics CRH

Single Machine Group Scheduling Problems with the Effects of Deterioration and Learning

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自动化学报 2009年第10期35卷 1290-1295页

作者： YAN Yang wang Da-Zhi wang ding-wei W. H. Ip wang Hong-Feng School of Information Science and Engineering Northeastern University Shenyang 110004 P. R. China Department of Industrial and Systems Engineering Hong Kong Polytechnic University Hong Kong P.R. China

This paper studies the single-machine scheduling problem with the effects of deterioration and learning under group consumption, where the processing time of a job is defined by the function of the starting time and position in the group. Based on the analysis of properties and polynomial algorithms, it can be shown that both the single-machine makespan minimization problem and the total resource minimization problem under the group consumption are polynomially solvable, even though the deterioration and learning effect on job processing time is introduced.

关键词：单机器调度衰退学习效应

Quantificational analysis and simulation of Technical Barriers to Trade with two country model

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Chinese Business Review 2009年第6期8卷 37-43页

作者： JIANG Jian-ye wang ding-wei School of Information Science and Engineering Northeastern University Shenyang 110004 China Research Center of City Development and Environment Academy of Social Sciences Beijing 100732 China

The Technical Barriers to Trade （TBT） is an important problem faced to the export of China. Based on the number differences of TBT notifications between countries, we propose the concept and computational method of the technical barrier coefficient. By means of price-production and price-demand functions, a trade model with a developed country and a developing country is designed. The available trade policies such as technical barriers, tariffs and export subsidies are simulated and analyzed. According to the simulation results, several trade strategies to come over technical barriers are suggested. These suggestions were provided to several export enterprises for their export strategy design.

关键词： Technical Barriers to Trade two country model economic system modeling computer simulation strategy design

考虑广告商信誉的搜索引擎排位拍卖的机制设计

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系统工程理论与实践 2011年第1期31卷 38-42页

作者：汪定伟东北大学信息科学与工程学院沈阳110004

排位拍卖是通用搜索引擎营运商的主要赢利手段.由于不良广告乘虚而入,排位拍卖过度趋利的拍卖机制受到了公众的广泛质疑.为规范搜索引擎营运行为,提出一种考虑广告商信誉的新的排位拍卖的机制.基于经典的VCG拍卖的机制提出了胜标的确定... 详细信息

排位拍卖是通用搜索引擎营运商的主要赢利手段.由于不良广告乘虚而入,排位拍卖过度趋利的拍卖机制受到了公众的广泛质疑.为规范搜索引擎营运行为,提出一种考虑广告商信誉的新的排位拍卖的机制.基于经典的VCG拍卖的机制提出了胜标的确定方法,推导并证明了各个广告排位的价格计算公式.通过与原有的不考虑广告商信誉的排位拍卖的收益对比说明,虽然在相同竞价水平上,考虑广告商信誉会给搜索引擎营运商带来少量的经济损失,但从长远看,搜索引擎的信誉提高带来访问量的增加,势必会给搜索引擎营运商带来更高的利润.

关键词：网络拍卖搜索引擎拍卖模型企业信誉拍卖机制设计

基于互联网的元搜索引擎中领域搜索模型的设计

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系统仿真学报 2008年第5期20卷 1218-1223页

作者：王铮王庆汪定伟东北大学系统工程研究所126信箱辽宁沈阳110004

网络信息庞大而繁杂,给用户查询带来了很多困难,领域相关的信息检索能有效地减少这些困难。基于互联网的元搜索引擎技术,提出了一种领域搜索模型。首先,采用"几率比"方法选择领域词,利用基于领域词的"判定树"构造能够反映领域文献特征... 详细信息

网络信息庞大而繁杂,给用户查询带来了很多困难,领域相关的信息检索能有效地减少这些困难。基于互联网的元搜索引擎技术,提出了一种领域搜索模型。首先,采用"几率比"方法选择领域词,利用基于领域词的"判定树"构造能够反映领域文献特征的领域查询式。再将用户查询词与领域查询式相结合,作为通用搜索引擎的输入。最后,采用"扩展布尔模型"方法对返回文献进行排序,筛选出领域相关性强的检索文献。实验证明,该模型在检索领域文献时取得了很好的效果,可以用于互联网环境下各种领域相关信息的检索。

关键词：信息检索元搜索引擎判定树几率比扩展布尔模型

电子商务中基于Hopfield神经网络的货源信息搜索方法

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东北大学学报（自然科学版） 2008年第2期29卷 185-188,192页

作者：王铮王庆汪定伟东北大学信息科学与工程学院辽宁沈阳110004

对电子商务环境下货源信息搜索问题进行了分析研究,并以Internet网络为信息源,采用信息检索和人工智能相关技术,提出了基于Hopfield神经网络的货源信息搜索方法.该方法将货源信息的特征保存在Hopfield神经网络的连接权中,根据用户输入... 详细信息

对电子商务环境下货源信息搜索问题进行了分析研究,并以Internet网络为信息源,采用信息检索和人工智能相关技术,提出了基于Hopfield神经网络的货源信息搜索方法.该方法将货源信息的特征保存在Hopfield神经网络的连接权中,根据用户输入的查询词,通过网络的运行,自动生成一组查询扩展词,利用这组查询扩展词在通用搜索引擎中进行扩展搜索,并分析排序搜索结果.此方法扩大了货源搜索范围,提高了搜索精度,为企业提供了有价值的相关货源信息.

关键词：电子商务 Hopfield神经网络货源信息搜索人工智能搜索引擎

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极值优化算法综述

控制与决策 2007年第10期22卷 1081-1085,1090页

作者：齐洁汪定伟东华大学信息科学与技术学院上海200051 东北大学信息科学与工程学院沈阳110004

极值优化(EO)算法是新开发的一种启发式算法,其基本思想是更新适值最差的变量,提高目标函数的适值.首先介绍了自组织临界的思想和模型;然后阐述了算法的具体实现,讨论了算法的改进、特点和算法的理论分析;最后介绍了算法的应用,并展望... 详细信息

极值优化(EO)算法是新开发的一种启发式算法,其基本思想是更新适值最差的变量,提高目标函数的适值.首先介绍了自组织临界的思想和模型;然后阐述了算法的具体实现,讨论了算法的改进、特点和算法的理论分析;最后介绍了算法的应用,并展望了算法未来可能的改进和研究方向.

关键词：极值优化算法自组织临界准平衡性演化计算

Analysis of Chaotic Synchronization Stability and Its Application to a Two-dimensional Advertising Competing Model

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自动化学报 2005年第2期31卷 209-215页

作者：齐洁汪定伟 InstituteofSysternsEngineering SchoolofInformationScienceandEngineeringNortheasternUniversityShenyang110004

A class of map in which chaotic synchronization can occur is defined. The transverse Lyapunov exponents are used to determine the stability of synchronized trajectories. Some complex phenomena closely related to chaotic synchronization, namely riddled basin, riddling bifurcation and blowout bifurcation are theoretically analyzed. Riddling bifurcation and blowout bifurcation may change the synchronization stability of the system. And two types of riddled basins, i.e., global riddled basin and local riddled basin, may come into being after riddling bifurcation. An advertising competing model based on Vidale-Wolfe model is proposed and analyzed by the above theories at the end of the paper.

关键词：混沌同步稳定性分析二维广告竞争模型筛选分歧鼓风分歧