TiNi shape memory alloys prepared by normal sintering

This paper covers the use of conventional press and sinter of titanium and nickel equiatomic blends, involving transient liquid phases. A notable development has been the fabrication of homogeneous compacts from the elemental powders. Results indicate that employment of a double-stage sintering cycle is effective to sustain the geometrical integrity of the sintered sample. The TiNi alloy prepared in this manner exhibits a recovery strain of 4.6% by generating a restoring stress of 230 MPa, with a martensitic transformation point M_s of 34 °C.     

航空齿轮表面硬化层断裂性能研究

按照航空齿轮的具体工艺过程，对材料12Cr2Ni4A的拉伸试样和断裂试样进行设计和加工，通过三点弯曲实验，重点研究了齿轮材料硬化层的硬度分布，硬化试样拉伸力学性能参数和断裂性能参数，实验结果表明，所采用试样的加工工艺方案是可行的，所获得的Kc基本反映我国航空硬化齿轮材料的断裂性能特征，为定量预测航空硬化齿轮疲劳寿命提供实验和理论分析的依据。     

Relative Contributions of the Male and the Female to Sexual Behavior and Reproductive Success in the Japanese Quail (Coturnix japonica).

Two contrasting investigative techniques provided evidence consistent with the interpretation that female quail (Coturnix japonica) regulate male copulatory behavior by the duration of their immobility and through this behavioral mechanism they also control the rate of fertilization of their eggs. In Experiment 1, copulation tests with males and females from different genetic lines showed that the type of female that participated in a copulatory test significantly influenced the latency of the male's grab, mount, and cloacal contact responses and also determined the efficiency of the male's copulatory behavior. These measures of male performance were correlated with female immobility in Experiment 2, which used a more homogeneous population of quail. Furthermore, 2 of these measures (copulatory efficiency and the latency to make cloacal contact) were correlated with fertilization rate. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Uncertainty Matters: Computer Models at the Science–Policy Interface

The use of computer models offers a general and flexible framework that can help to deal with some of the complexities and difficulties associated with the development of water management plans as prescribed by the Water Framework Directive. However, despite the advantages modelling presents, the integration of information derived from models into policy is far away from being trivial or the norm. Part of the difficulties of this integration is rooted in the lack of confidence policy makers have on the incorporation of modelling information into policy formulation. In this paper we examine the reasons for this apparent lack of confidence and explore how some tools, presently in use, address this problem. We conclude that public confidence in models is highly dependent on the way uncertainties are addressed and suggest possible directions of action to improve the current situation. Four real case studies illustrate how computer models have been used in The Netherlands for carrying out management plans at regional and national scale. We suggest that the solution to integrate modelling information into policy formulation lies on both the modelling and the policy-making communities.     

CVD金刚石膜生长过程的Raman分析

采用激光Raman散射分析法对CVD金刚石膜的生长过程进行研究 ,讨论在金刚石膜生长的不同阶段 ,膜内金刚石和非金刚石成分的相对含量及其残余应力的变化情况     

基于HOP的可调光编码／解码器的研究

提出了一种基于全息光处理器的可调光编码/解码器的实现方案。全息光处理器可以在空间进行编/解码，每个通信网络单元可以采用任意速率的数字或模拟的调制信号，它非常适合于多媒体的通信网络环境，通过对全息光处理器的折射率大小和位置的控制，当一个输入光脉冲经过光处理器中具有特定折射率的空间位置后，便可在处理器的输出端口得到合适的输出信号。本文给出了这种基于全息光处理器的可调光编码/解码器的仿真实验，结果是可行的，与以前文献中提出的结构相比，减小了硬件实现的复杂性，降低了成本和功耗，便于集成。     

Al-Cu-Fe系初生准晶相凝固过程的电子显微分析

采用包括金相（OM），粉末X射线衍射（XRD），扫描电子显微镜（SEM）观察和透射电子显微（TEM）分析等方法，研究了铸态Al592.Cu36.8Fe3.0Si1.0合金（700℃保温2．5h后水淬）的显微组织及相组成。发现铸锭中存在4种相：准晶I相，τ3相（或φ相），θ－Al2Cu相和η－AlCu相，凝固过程可描述为：初生晶是准晶Ⅰ相；在保温过程中发生包晶或共晶反应（L＋i→τ3(或φ）或L→τ3（或φ）＋i)形成的τ3相（或φ相），呈微畴结构；而剩余液体水淬形成θ－Al2Cu相和η－AlCu 相。     

大学生消费群广告名人效应的心理加工机制研究

从自动化加工和控制性加工这个视角研究了名人效应的心理加工机制。实验运用加工分离程序，探讨了大学生消费对名人广告的信息加工模式。结果发现：①与用一般消费做代言人相比，大学生消费对名人广告明显存在更多的自动化加工；②在非注意条件下，代言人的专业化程度明显地影响了大学生消费的控制性加工，但与自动化加工关系不大。     

环境因素对碳钢点蚀临界电势的影响

采用动电势扫描法测定了不同体系中碳钢发生点蚀的临界电势Eb。结果表明 :当Cl- 浓度 <0 .0 1mol/L时 ,随Cl- 浓度增加 ,临界电势负移并与Cl- 浓度成线性关系 ;pH值在 7～ 11之间 ,随pH值增加 ,临界电势正移并与pH值成线性关系 ;随温度增加 ,临界电势负移并与温度成线性关系。     

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根据长庆气田陕242井天然气欠平衡钻井配套技术(低密度高强水泥浆固井技术)研究应用，进行了大量的室内试验研究。试验研究得出增强减轻外掺料、高温降失水剂及低密度高强水泥浆体系。现场试验结果表明，该体系固井质量良好，完全满足欠平衡钻井对固井水泥浆的要求。