小流量旋涡泵的理论设计与试验研究

建立了以效率和工作范围为主线的小流量旋涡泵的理论设计方法，并对ＸＷＢ－３／１３０和ＸＷＢ－１／１１０两台旋涡泵进行了试验研究．理论分析和试验结果表明：较大的流道面积Ｆ可以拓宽泵的工作范围，较大的径向间隙△ｐ和轴向单边间隙δα会降低泵的扬程和效率。     

Molecular Design and Immunogenicity of a Multiple-epitope FMDV Antigen and DNA Vaccination

This article reports the design and construction of a multiple-epitope foot and mouth disease virus （FMDV） antigen, designated as OAAT. This recombinant antigen consists of the structural protein VP1 genes from serotypes A and O FMDV, five major VP1 immunodominant epitopes from two genotypes of Asial serotype, and three Th2 epitopes originating from the nonstructural protein, three ABC gene and structural protein VP4 gene. Expressions of target gene from these plasmids in HeLa cells were verified by Western-blot. BALB/c mice were immunized intramuscularly with the DNA vaccines thrice every two weeks. We found that pA could induce simultaneously specific antibodies against serotypes A, Asial, and O FMDV. Compared to those of the controls, the spots of FMDV-specific IFN-7 and cytotoxic activity from mice immunized with pA were significantly increased, pA provided full protection in 2/4 guinea pigs from challenge with FMDV O/NY00 and Asial/YNBS/58, respectively. The results show that although pA did not give full protection in 100% immunized guinea pigs from challenge with type O and Asial FMDV, respectively, OAAT may be potential immunogen against FMDV and pA may be potential DNA vaccines against FMDV.     

AVS-P3音频解码器的算法优化

基于嵌入式系统应用中实时解码对速度和存储空间的要求，通过分析AVS—P3解码器原理及其技术特点，以AV3 release version1为蓝本对AVS音频解码器进行结构和算法上的优化．其中时频变换模块对intIMDCT算法进行分析与处理，量化模块定点化处理和AVS解码器熵解码模块的实现算法提出了新的方法．经过ARM9平台测试，在音乐质量没有受到损害的前提下，解码速度比原来提高10倍以上，存储空间也减少了一半以上．     

Hardy-Type Inequalities on H-Type Groups andAnisotropic Heisenberg Groups

The author obtains some weighted Hardy-type inequalities on H-type groups and anisotropic Heisenberg groups. These inequalities generalize some recent results due to N. Garofalo, E. Lanconelli, I. Kombe and P. Niu et al.     

DBC-偶氮胂光度法测定人发中微量铋

ＤＢＣ－偶氮胂对铋的灵敏度较高且选择性好，在０．２－１．０ｍｏｌ／Ｌ硝酸介质中与Ｂｉ形成配位比为１：２的紫红色配合物，λｍａｘ＝６３０ｎｍ，ε６３０＝８．８×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１。铋量在０－＝１０μｇ／１０ｍＬ范围内符合比耳定律。用于人发中微量的铋的测定，操作简便，结果满意。     

宁夏南部山区甘肃鼢鼠种群状况及危害

在明确宁夏退耕还林(草)区危害鼠种是甘肃鼢鼠的基础上,调查分析了其种群密度、危害特征、性比和年龄结构,得出宁南山区甘肃鼢鼠的种群既和相近地区以及其他黄土高原具有一定的相似性,又有其本身的特殊性,并提出了一种鼬科动物灭鼠的设想.     

汉英颜色词"黑"与"black"的文化内涵比较及其翻译

文化、语言及翻译之间的关系,是一种相辅相成、互为前提的关系,而翻译是一种跨语言、跨文化的交际活动。文章旨在通过汉英颜色词“黑”与“black”的文化内涵的比较,探讨不同文化背景下语言的使用差异以及这种差异对翻译策略选择的影响。     

膝上假肢稳定性与运动学功能的评价

对多轴膝关节进行了分析，提出了承重稳定裕度角、全伸展位绝对瞬心距和相对瞬心距的概念，用于评价下肢假肢的稳定性和相对稳定性。通过对膝关节稳定协调区的讨论，说明了相对稳定性的概念和应用。多轴膝上假肢在摆动相能使小腿有更大的升高量，从而减小了脚在摆动相触地的可能性而具有特殊的优点。通过对这一性能的定量分析，提出了踝关节在摆动相的升高量作为评价这一性能的指标，进一步阐述膝关节功能的评估问题。该文提出的评价方法对膝上假肢设计及装配均有重要意义。