空调压缩机铝合金连杆的液态模锻

分析了空调压缩机用铝合金连杆的工艺特点和技术要求 ,介绍了液态模锻的模具结构和工作过程 ,同时还介绍了铝合金连杆液态模锻的工艺参数。     

社会因素对男女动手能力差异的影响

分析了导致男性和女性动手能力差异的原因。认为遗传因素只是动手能力性别差异形成的基础,家庭教养、学校教育和社会文化的影响是导致动手能力性别差异的主要原因。在教育和宣传中,应强调动手能力的个性差异,弱化其性别差异。     

单层厂房横向地震反应的行进波效应(I)——两端有山墙厂房

将单层厂房的屋盖简化成剪切梁 ,柱刚度连续化 ,建立振动方程后 ,给出边界条件的数学表达式 ,推导出行进波作用下两端有山墙厂房的拟静态反应及动态反应的计算公式 .并分析了地震波在场地中的传播速度对不同刚度厂房地震反应的影响程度     

粗纺梳毛机主机传动的改进

提出了几种常用粗纺梳毛机主机传动的技术改进措施，有利于提高产量、质量，开发新产品，增加企业效益。     

LiV_3O_8的溶胶-凝胶法合成及500℃阴极放电性能

用柠檬酸溶胶-凝胶工艺制备出了LiV_3O_8化合物,并检测了其作为热电池阴极材料时的放电性能,干凝胶210℃焙烧所得的粉末颗粒疏松多孔,300℃时可变成结晶岩状,低温焙烧时出现了Li_(0.3)V_2O_5和LiV_2O_5相,经650℃长时间保温后可转变为LiV_3O_8,模拟Li-B/LiCl-KCl/LiV_3O_8(或V_2O_5)热电池500℃放电试验表明,LiV_3O_8因具有良好的电子导电体和较低的Li~+扩散极化,其放电较V_2O_5平稳,虽峰值电压略有降低,但可利用的比容量(电压降至峰值电压的75％或2.0 V)均不低于V_2O_5;LiV_3O_8中掺入8％的P_2O_5时可提高小电流放电时的电压。     

特大断面隧道支护结构现场试验与三维效应分析

与普通公路隧道相比,双洞八车道特大断面隧道的结构受力更加复杂、施工方法更为多样化。结合目前国内规模最大的四车道特大断面隧道,对特大断面隧道进行现场试验,并基于现场试验结果,详细地分析特大断面隧道双侧壁导洞法开挖引起支护结构变形及受力的三维效应。研究结果表明:在特大断面隧道施工过程中,左导洞下台阶和核心土上台阶开挖对支护结构受力及变形影响较大,是支护稳定性控制的主要工序;特大断面隧道开挖的纵向影响距离大致为1~1.5倍导洞跨度,约为8~12m。研究成果可为日后类似工程的设计、施工和研究提供有益的借鉴和参考。     

用巴特勒和新复极差法对分析数据的检验

本文介绍了巴特勒（Ｂａｒｔｌｅｔ）法和新复极差（ＳＳＲ）法在分析数据处理中的应用，表明该法对指导分析化验和科学研究工作，保证分析结果的准确度等都有重要作用。     

The influence of carbon ion irradiation on sweet sorghum seeds

The aim of this study is to investigate the effects of different doses of 100 MeV/u carbon ions on sweet sorghum seeds in order to improve crop yields and their sugar content. After irradiation, seeds were germinated and grown to 30 days, and others were sown in the field. At the end of harvesting season all planted seeds were picked separately and M2 generations obtained. The differences among the treatments were examined using the RAPD procedure. In the study done by using 38 primers; according to the amplification results, the differences among the various doses treatment were shown.     

双层立面系统在建筑节能设计中的应用

本文结合具体建筑实例阐述双层立面技术的原理和适用范围以及使用方面的重点注意事项．     

Synthesis and high photocatalytic hydrogen production of SrTiO3 nanoparticles from water splitting under UV irradiation

Cubic SrTiO₃ powders were synthesized by three methods: the polymerized complex (PC) method, the solid state reaction, and the milling assistant method. The samples obtained were characterized by X-ray diffraction (XRD), UV–vis spectroscopy (UV–vis), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The mean diameters of the as-synthesized SrTiO₃ particles were 30 nm by the polymerized complex method, 140 nm by the solid state reaction, and 30 nm by the milling assistant method. The photocatalytic activity of hydrogen evolution from water splitting over SrTiO₃ powders by the polymerized complex method is higher than that by the solid state reaction and the milling assistant method. Particle size, uniformity of components, and particle aggregation extent affect the photocatalytic activity of SrTiO₃ for hydrogen evolution. The best rate of photocatalytic hydrogen evolution over SrTiO₃ by the polymerized complex method under UV illumination is as high as 3.2 mmol h⁻¹ g⁻¹.