YLX系列高效单相双值电容大功率异步电机研究成果居国内领先地位

我校和攸县电机厂合作完成的"YLX 高效单相双值电容大功率异步电机"科研成果,由省科委主持于今年六月在攸县电机厂通过了省级鉴定.这种电机绕组系数高、槽填充匝数高、谐波含量小、材料利用率高、耗材少、效率高,在同类产品中居国内领先地位.     

过程剪裁在软件过程连续改进中的应用

针对目前软件过程改进的理论研究多于实际方法研究的状况，提出一种切实可行的CMM剪裁框架和方法，指导软件企业有效实施过程连续改进．     

He-Ne激光对玉米幼苗可溶性蛋白质谱带的影响

采用功率密度为 2 .83m W/ mm2 ,3.95m W/ mm2 的 He- Ne激光辐射风干的玉米种子 ,辐射时间分别为 5s,50 s,50 0 s。以玉米二三叶期幼苗为材料 ,通过 SDS-聚丙烯酰胺凝胶电泳 ( SDS-PAGE)分析其蛋白质谱带。结果表明 :经处理的玉米幼苗蛋白质谱带均多于对照 ;二叶期的增加谱带多分布在分子量 5.1 5× 1 0 -2 3～ 1 .62× 1 0 -2 2 kg范围内 ;三叶期的增加谱带分布在分子量小于2 .39× 1 0 -2 3 kg范围内。结论认为 He- Ne激光辐射可有效地促进玉米幼苗可溶性蛋白质的合成     

基于AHP-Fuzzy方法的工业生产安全综合应急演练评估

针对工业生产安全领域内综合应急演练涉及的演练内容广泛、科目繁杂,评估工作难度较大等问题,提出建立演练评估层次指标体系,利用层次分析法确定各指标权重,结合模糊数学理论,应用模糊综合评估法实现应急演练定量化评估的技术.应用AHP-Fuzzy方法对某大型国有企业成品油库综合应急演练进行了评估,验证了评估方法的可行性.     

He-Ne激光对小麦幼苗增强UV-B辐射损伤修复的影响

采用He-Ne激光(5mW/mm²)来辐照处理经增强UV-B(10.8kJ·m^-2·d^-1)辐射损伤的小麦幼苗,通过荧光光谱测定其中双链DNA(dsDNA)的含量,分析研究了He-Ne激光对小麦DNAUV-B损伤的切除修复的影响和机制,以探明激光对UV-B损伤的修复途径及机制.结果表明:He-Ne激光能明显增强UV-B辐射处理后小麦种子的萌发力;小麦对UV-B辐射损伤具有一定的切除修复能力,切除修复的高峰期发生在UV-B辐射后4～6h内;He-Ne激光主要通过促进小麦的切除修复途径影响小麦对UV-B损伤的修复,而且能增强小麦的切除修复能力,其促进作用在修复高峰期(5h)表现尤为明显.     

SnO2/ 石墨复合材料作为锂离子电池负极材料研究

Nano-scale SnO₂ powders were prepared by hydrolyzation. Graphite was poured into the SnCl₄ solution during hydrolyzation. After drying and calcining at 360 ℃, the negative electrode composite material of nanosized SnO₂ and graphite was obtained. The composite materials were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The average crystallite size was in the range of 15～20 nm. Electrochemical lithium insertion/extraction was studied preliminarily on the obtained composite. The discharge capacity of nanosized SnO₂ / graphite composite was found to have a high electrochemical reversible capacity for Li-ion insertion and extraction, which possessed the advantages of both higher discharge capacity of SnO₂ and lower discharge potential of graphite. In addition, the cycle capability was also improved due to the inhibiting effect of the composite against pulverization and agglomeration to a certain extent during Li-ion insertion and extraction.