具有激励特征的科技人才需求预测方法

针对经济体制转换时期的特殊情况，提出了具有激励特征和动态特征的科技人才需求预测方法，并对Ｌ省Ｓ市２０００￣２０１０年科技人才需求量及具有预期学历结构约束的人才补充量进行了预测。     

Retrospect and Prospect of International Garments Exhibition of Shanghai International Fashion Culture Festival

The goal of this research is to discuss International Gar-ments Exhibition of Shanghai International Fashion Cul-ture Festival which was held once a year since 1995.As amajor economic activity of Shanghai International Fash-ion Culture Festival(SIFCF),it is an important eventfor fashion industry in Shanghai and even in China.There are three parts in the paper:1)survey,the re-view of the exhibition held in the past is described brief-ly;2)Analysis,the materials and phenomena of exhibi-tions of SIFCF are analyzed to find the successful experi-ences and deficiencies,which are compared with eachother and with same events in the world;3)suggestion,some proposals of the exhibition of SIFCF in the futureare given.It would be hoped that this study will find the way for International Garments Exhibition of SIFCF toshow the features of Chinese and Shanghai's fashion in-dustry as well as to develop itself as a professional fashionexhibition conforming with international practice.     

基于纤维模型的钢混组合柱滞回性能模拟

采用纤维模型对一个钢管混凝土组合柱进行了极限承载力分析,计算并比较了各种轴压比下钢混组合柱的滞回性能,得到了抗震较为理想的轴压比。结果表明,纤维截面单元能用较小的计算代价获得与规范相近的计算结果。     

四类Cartan—Egg域的Bergman核函数

显式给出了四类Cartan-Egg域的Bergman核函数及其全纯自同构群。     

跳汰分层过程数学建模

深入分析了跳汰过程中颗粒运动的特征，应用马尔可夫链理论建立了跳汰分层过程的数学模型，并在实验室Ｕ型跳汰机上进行了实验验证。计算结果揭示了跳汰床层中物料分层的形成过程，很好地解释了当中等密度物料多时分选效果变坏的原因。     

郑州市城区竞争力比较分析

运用因子评价法和主成分分析法对郑州市6个辖区的经济指标和综合指标进行分析,找出各个区的优势和劣势,分析各个区域的发展差异,发掘各个区域的发展潜力,为郑州市功能的完善和规划政策的制定提供合理的依据.     

CyclinE反义RNA抑制乳腺癌细胞增殖及p21~(waf1)转录水平

利用反义RNA抑制基因表达的技术 ,发现cyclinE基因在表达受到抑制后 ,乳腺癌细胞增殖速率和致瘤性明显下降 ,结果还表明cyclinE基因的抑制 ,可使p2 1waf1的转录水平上升 ,由此说明cyclinE的异常与乳腺癌的发生有着密切的关系 ,在细胞周期调控上 p2 1waf1的转录受到cyclinE表达水平的明显影响 .     

再议相贯线过渡线的简化画法

针对《机械制图》GB4458．1－84和《技术制图　简化表示法》GB／T16675．1－1996中有关过渡线、相贯线简化画法的条款，提出图形中的过渡线、相贯线可以简化，例如用直线或圆弧或其组合线代替非圆曲线。     

Influence of clusters in melt on the subsequent glass-formation and crystallization of Fe–Si–B metallic glasses

The liquid structure of seven representative Fe–Si–B alloys has been investigated by ab initio molecular dynamics simulation focusing on the role of clusters in terms of glass-forming ability(GFA) and crystallization. It is demonstrated that the type of primary phase precipitated from amorphous state under heat treatment is determined by the relative fraction and role of various clusters in melt. The alloy melt shows higher stability and resultantly larger GFA when there is no dominant cluster or several clusters coexist, which explains the different GFAs and crystallization processes at various ratios of Si and B in the Fe–Si–B system. The close correlation among clusters, crystalline phase and GFA is also studied.     

磁耦合谐振式无线能量传输效率分析

为分析无线能量传输的效率问题,利用电磁仿真软件HFSS,建立了单个线圈模型,利用单个谐振线圈模型构建了基于磁耦合谐振的能量传输系统。通过S参数曲线直观反映能量传输效率的变化规律,验证了磁耦合谐振式能量传输效率远远大于一般的感应耦合。通过改变模型中两线圈的相对位置,分析了线圈距离、夹角等因素对能量传输效率的影响,依据效率变化曲线,直观展示了频率分裂现象。仿真和分析表明,为实现系统的高效率、远距离能量传输,应尽量减小收发线圈的角度和线圈的错位偏移量,该系统为设计和优化无线电能传输系统提供了一种理论分析方法。