基于P2P技术的网格资源管理方法

网格计算的关键技术是资源管理,如何有效地对网格资源进行管理调度是一个网格系统是否可用的关键问题。基于网格资源的特点,文本试图在网格环境中引入对等思想,利用P2P技术来有效地管理动态的网格计算资源。     

虫媒登革病毒的研究——Ⅱ.登革病毒非结构蛋白NS1的纯化、鉴定及其在临床检测应用

本文从纯化Den2 NS1,Mab入手,自制了Mab亲和层析系统,从感染Den2的细胞膜中,分离提取了天然的Den 2 NS1双体,比较其NGC株与我国地方株(H-87)NS1的理化性质及组成,并对某些重要的生物学性质进行了综合性研究。同时,利用上述研究结果建立了检测DF病人血清特异NS1抗体的新方法,探索其协助临床诊断及研究的可能性。     

J2EE平台在行政审批服务系统中的应用

本文分析了电子政务对国民经济所起的重大作用,简要介绍了当前流行的J2EE架构的分布式对象结构特点。设计了一个J2EE架构下的行政审批服务系统,它由客户层、中间层和企业信息系统层等三个层次组成。同时,对系统的设计方法、软件结构及实现技术进行了探讨。     

Thermodynamic Analysis and Comparison on Low Temperature CO_2-NH_3 Cascade Refrigeration Cycle

Intheapplicationsofindustrialandcommercialrefrig erationsystem ,iftherequiredrefrigerationtemperatureisverylow ,theconventionalvaporcompressionsystemisdiffi culttomeettherequirementbecausewhenthedifferencebe tweentheevaporatingtemperatureandthecondensingtemper atureissohighthatitishardtofindarefrigeranttomeettheneedsasthecondensingpressureisnottoohighandtheevap oratingpressureisnottoolow .Whentherefrigeratingtemper atureisverylow ,thecascaderefrigerationcycleissuitabletobeused .Itcannotonlysat…     

Hydrogenation properties of mechanically milled Mg2Nio.8Cr0.2-CoO/Al2O3 composites

Mg2Ni0.8Cr0.2-x wt.% CoO/Al2O3 (x=0.5, 1, 2 and 3) composites were prepared by mechanically milling sintered Mg2Ni0.8Cr0.2 alloy and CoO/Al2O3 compound for 45 h. The addition of CoO/Al2O3 compound resulted in the good kinetics properties of hydriding/dehydriding reaction of the composites. The composite with 1.0 wt.% CoO/Al2O3 catalyst could reach the maximum hydrogen absorption capacity (2.9 wt.%) within 5 min at 393 K under H2 pressure of 4 MPa, and can desorb rapidly at 493 K. The decomposition and synthesis of hydrogen molecule on Mg2Ni0.8Cr0.2 alloy surface was promoted by addition of CoO/Al2O3 catalyst. In addition, the formation of metallic Ni particles, strain and defects during the ball milling process also resulted in the improved hydrogenation performance of Mg2Ni-based alloys.     

2-氯乙胺盐酸盐的合成研究

研究以乙醇胺、氯化氢和二氯亚砜为原料,以氯仿做溶剂,合成2-氯乙胺盐酸盐．实验表明:在气态氯化氢的存在下,摩尔比为1:1．04的乙醇胺和二氯亚砜在71℃下反应4小时, 可获取产率98％的2-氯乙胺盐酸盐．     

二级学院非英语专业学生课外学习现状的调查

本文以问卷和访谈的形式对600名二级学院的学生的课外学习情况从课外学习的时间、目的、内容、影响因素、策略以及存在的困难等六个方面进行调查并对结果进行分析,在此基础上提出了相应的对策。     

In vitro study on ribozyme against hepatitis C virus

Objective: To determine the effective nucleotide sites of ribozymes against HCV, and obtain a highly effective, nontoxic and inexpensive antisense ribozyme specific for HCV. Methods: Two effective ribozymes, targeted to HCV 5’NC region and C region, were designed and synthesized. Eukaryotic expression vectors, pSV2-gpt. CD-SR (, containing either HCRZNC or HCRZC were constructued and transfected into MT-2 cells, which had been infected by HCV. Quantitative PCR and hydridization were used to determine the effect of inhibition of HCV by ribozymes. Results: HCRZNC and HCRZC suppressed the replication of HCV by 54.7% and 62.1%, respectively. Furthermore, when both ribozymes were cotransfected into cells, they suppressed replication by 78.8%. Conclusion: Two specific antisense ribozymes have strong inhibitory effects on the replication of HCV in cultured cells, and have better effect when used together.     

传统几何造型艺术在现代服装设计中的立体表现

近年来,富有形式美感的几何造型服装在时装舞台上越加醒目,越来越多的设计师开始关注传统几何造型艺术在服装设计中的应用价值。如何将传统的造型艺术与现代时尚设计相结合,并创造出新的表现方式,成为研究的关键。在对几何造型的历史渊源及其相关的形式特点进行分析的基础上,对服装廓形、肌理图案、面料中的几何元素在现代服装设计中的立体表现进行分析研究,有利于探索其完美结合后的艺术和商业价值。     

运动员竞赛焦虑状态的分析

以参加第六届全国农运会田径项目的150名运动员作为研究对象,采用＂运动竞赛状态焦虑量表＂（简称CSAI-2问卷）为测试工具进行调查.结果表明：（1）不同性别的运动员竞赛焦虑状态各维度上不存在显著差异,但女运动员竞赛焦虑状态各因素得分略高于男运动员;（2）不同运动年限的运动员竞赛焦虑状态各维度上存在显著差异,运动年限越长竞赛焦虑状态各因素得分越高;（3）不同专项的运动员竞赛焦虑状态各维度不存在显著差异.