基于WinSocket的大文件批量传输系统的设计与实现

针对文件传输系统中进行二次开发比较困难及对大文件传输支持不理想的问题,给出了一种新的UML建模方法,该方法利用SOCKET的底层机制和多线程技术相结合,用Rational Rose工具,在RUP指导下运用UML建模技术,实现大文件批量传输,实验表明该方法提高了文件传输效率。     

基于RUP的UML建模方法在电子地图系统开发中的应用*

以电子地图系统的开发为背景,介绍了在面向对象应用系统的分析与设计过程中,应用基于RUP的UML的建模技术进行系统建模的方法。在对系统进行需求分析的基础上,灵活选用UML提供的语言丰富的可视化表达元素,构建了系统的用户需求模型、混合模式体系架构模型、分析设计模型和实现模型。     

软件项目风险管理综述

风险在软件开发过程中无处不在,如何控制软件项目中出现的各种风险一直是软件工程领域研究的主要问题之一软件开发过程方法对控制软件风险有积极的作用,RUP、CMM等方法对软件项目风险有着良好的控制能力很多学者都使用不同的方法或技术对软件项目风险进行分析或管理。     

UML在基于RUP的软件开发过程中的应用探讨

本文主要探讨了如何将UML与RUP相结合开发软件,及在此过程中所产生的制品。根据RUP的核心工作流及生命周期的阶段划分．对软件系统进行面向对象的分析与设计,使用UML建立系统的用例模型、分析模型、设计模型、实现模型、配置模型等。     

面向对象的UML建模方法研究

探讨了基于UML进行面向对象的系统分析及设计方法;提出了一种实用的基于UML的需求分析及其建模方法：讨论了需求分析及其建模的过程概念,并以仓储管理系统的开发作为案例示范。     

基于RUP的软件开发过程研究

随着对软件需求的不断增大,要求的不断提高,软件开发机构迫切地需要一种能够更有效地开发更高质量软件的方法。统一软件过程RUP是一种用例驱动,以架构为中心,采用迭代增量方式开发的软件工程过程。RUP作为一种通用的软件过程框架,适用于大多数的软件项目,而信息系统的开发,也需要引入一种适当的开发过程作为指导,以提高质量、开发效率和复用性等。     

基于UML网上商品交易系统的研究与开发

对如何使用UML面向对象的软件开发技术进行了阐述,通过RUP指导下的建模方式,将面向对象可视化建模技术引入到商品交易系统的开发中.以用例图表达系统需求,以设计类图、顺序图表达系统的结构逻辑及行为逻辑,利用UML用例分析技术,构建UML的静态模型和动态模型,实现需求分析、数据抽象、设计和编码的无缝连接.     

Production performance and nitrogen metabolism in dairy cows fed supplemental blends of rumen undegradable protein and rumen-protected amino acids in low- compared with high-protein diets containing corn distillers grains

Feeding corn dried distillers grains with solubles (DDGS) in low crude protein (CP) diets could limit N waste in lactating cows. However, it also could possibly reduce metabolizable AA supply, especially Lys, and compromise milk production. Therefore, the objective of this study was to evaluate the effects of feeding supplemental blends of rumen undegradable protein (RUP) and rumen-protected (RP) AA in a low compared with high CP diet containing corn DDGS on milk production and selected measures of N utilization. Six multiparous Holstein cows (619.3 ± 49.8 kg of body weight; 26.8 ± 6.2 d in milk) were subjected to a split-plot, 3 × 3 Latin square design (21-d periods) with dietary CP content [low (14.6%; LP) or high (16.6%; HP)] as the whole-plot factor, and blend of RUP and RP-AA [control (CON), no supplement; blend A (0.11 kg/cow per d); or blend B (0.45 kg/cow per d)] as the sub-plot factor. All diets contained 10% corn DDGS; blends of RUP and RP-AA were top-dressed during morning feeding. There was no dietary CP content × supplemental blend interaction for all measured variables. Nutrient (dry matter, organic matter, neutral detergent fiber, acid detergent fiber, and CP), milk and milk component yields, and feed and apparent N efficiency did not differ for cows fed the low- compared with the high-protein diet. However, apparent total-tract CP digestibility, blood and milk urea-N concentrations, and urinary excretion (g/d) of N and urea-N were lower for cows fed the low-protein compared with the high-protein diet. There was no supplemental blend effect on nutrient intake and apparent total-tract digestibility, and milk and milk component yields. Except for a tendency for total urinary purine derivative excretion and microbial N flow to be lower for cows fed blend B compared with CON but not blend A, there was no supplemental blend effect on measures of N utilization. Both dietary CP content and supplemental blend of RUP and RP-AA had a marginal effect on the plasma free AA profile. In summary, reducing dietary CP content in diets containing corn DDGS had no effect on lactation performance, possibly accounting for the lack of a positive response following the provision of supplemental blends of RUP and RP-AA. However, reducing dietary CP content resulted in a decrease in blood and milk urea-N concentrations, and urinary excretion of N and urea-N, suggestive of an improvement in the efficiency of N use.     

UML在PDM项目组织流程中的应用

本文介绍了PDM系统的项目组织流程，并用统一建模语言UML对流程建模，通过模型化的描述进一步体会UML在信息管理系统的研制开发中的作用。     

RUP在DoDAF体系结构中的应用研究

分析了DoDAF体系结构三视图的功能、作用、相互关系以及DODAF体系结构开发过程。提出了运用Rational统一过程（RUP）对DoDAF体系结构开发的方法与过程,结合航空兵作战的特点,运用RUP开发了的相关视图产品,描述了航空兵作战过程,证明了RUP对体系结构的开发有着良好的支持作用。