羊毛防寒服面料性能要求及其织物设计方法

为了有效地提高羊毛防寒服面料的综合服用性能,采用实验法和分析归纳法,探讨羊毛防寒服面料的主要性能要求;并针对这些性能要求,分别对常用的不同种类的面料进行织物防钻毛性能、保温性能和透气性能实验．通过实验数据的对比分析,提出了改善羊毛防寒服面料性能的设计思路．结果表明,采用高紧度非涂层高支高密斜纹组织的织物设计方法是提高羊毛防寒服面料综合服用性能的有效途径．     

高等级公路沥青路面工程质量控制

从我国近年来施工的高等级公路工程实例的分析出发 ,提出了路面工程质量控制的几个重要问题 ,包括沥清面层的结构组合、沥青面层与相关结构的协调关系、配合比和施工过程工艺控制等     

约束结构下激光冲击波特性实验研究

 在约束结构下用短脉冲强激光对不同形状的铝片进行了冲击对比实验,研究了约束层和表面黑色涂层的作用。进行了水约束层作用的实验，所得的应力波强度与无约束层时相比有大幅度提高，但低于理论预测值。比较实验结果发现，黑色涂层更主要的作用是防止靶表层的烧蚀破坏，而冲击过后剩余的涂层会明显地衰减传向靶中的应力波。对于实际工程应用中有重大意义的非规则平面情形下的约束机制，实验表明，在曲率半径大于400mm时平面约束结构的作用依然有效。     

Ultrastructure of egg activation and cortical reaction in the noble crayfish Astacus astacus

Morphological changes in the gamete of female noble crayfish at four developmental stages were studied. Mature ovarian oocytes are enclosed by the first envelope that consists of two layers. Numerous pores are visible on the surface of the outer layer of this envelope and the inner layer contains bottlebrush-shaped objects. Three types of vesicles, including some that are highly and moderately electron-dense and some multi-layered, occur in the cortex of the oocyte. In freshly ovulated eggs, the pores in the outer layer are closed, and the bottlebrush-shaped objects in the inner layer are replaced by a spongiform electron-lucent matrix containing scattered electron-dense vesicles. One hour post-spawning, the first envelope, especially its inner layer, is condensed. The highly and moderately dense vesicles discharge their contents into the perivitelline space, where they combine and form a second envelope around the egg. Twenty-four hours post-ovulation, a second envelope is visible in the perivitelline space and the outer part of egg cortex. The highly and moderately electron-dense vesicles continue to release and combine contents to further construction of the second envelope after 24 h post-spawning. The egg attachment stalk is derived from the first envelope. The fertilization coat in the noble crayfish consists of first and second envelopes that are produced by the ovary and the cortical reaction, respectively.     

Formation of Rod-Like CuInS2 Nanocrystals on the Glass Substrate

Rod-like CuInS₂ nanocrystals on the glass substrate were prepared by annealing the coat of CuInS₂ nanoparticles. The products were characterized by means of energy dispersive analysis of x-ray (EDAX), x-ray diffraction (XRD) and scanning electron microscopy (SEM). The results of XRD and EDAX show that the rod-like CuInS₂ nanocrystals obtained are of a chalcopyrite structure and are nearly stoichiometric. The aggregation mechanism of “oriented attachment” of nanocrystals is believed to be operative and compatible in this study.     

青海春萝卜主栽品种种皮结构与发芽率的关系

本文对青海春萝卜主栽品种的种皮进行细胞组织结构观察和发芽率的测定：可知萝卜种皮结构有4个组分，即表皮，厚壁组织，内珠被遗迹及色素层；萝卜种子发芽率的高低主要与厚壁组织层的厚度及它占种皮全顾的比例有关。且成反比。     

转CMV-CP基因的番茄对CMV的抗性表现及遗传分析

本实验表明转CMV-CP(Cucumber Mosaic Virus Coat Protein)基因的番茄对CMV的侵染有很强的抗性。外源基因在转基因番茄及其后代中的分离比例为3:1和1:1。     

蔬菜种子干燥中种皮的效应与优化传热传质机理

1前言含水率大的种子在贮存过程中极易发生劣变，使发芽力与发芽势降低山。种子干燥是一个复杂的传热传质过程，而且还涉及到生命力保存的问题。虽然种子的形态存有差异，但是种子的基本结构都是一致的。一般都由胚、胚乳和种皮三部分组成。种皮对种子具有保护与协调的功能，其透气性与透水性决定了种皮是种子与周围环境进行质量与能量交换的必经之路。为此本文综合种子的生物生理特性研究了蔬菜种子干燥中种皮的作用，并结合种皮的生物学功能探讨了优化传热传质的机理。2种皮对干燥的影响实验装置见文献［2］，采用在线测量的方法可连续检…