农林院校<普通物理学>多媒体辅助教学系统的设计

提出了在Windows95或98下采用Visualc 4.0开发制作图、、声、像并茂的多媒体辅助《普通物理学》课程教学软件（农林院校专用）的设计思想和实现过程。     

水泵叶轮逆向工程软件开发及应用

逆向工程能为水泵叶轮的数值模拟、有限元分析、快速成形、产品数字化加工制造以及优化设计等提供直接的几何模型支持．在VC++ 60平台上,应用MFC,ADO,OpenGL,VTK等开发工具,利用模块化编程技术,针对从工业CT获取的叶轮高精度断层切片图像序列,通过图像预处理、二维图像处理以及二维几何处理等数字图像处理技术,编程完成了叶轮断层图像序列表面轮廓的三角面片三维重建及半边结构边界模型的叶轮三维实体转换,开发出了具有多个数据输入、输出接口的水泵叶轮逆向工程软件ReImpeller．应用该软件重建得到了精度较高的叶轮三维模型,以STL数据格式导出并进行快速成型,重建的叶轮零件与其原型相比,形状误差仅为064％,表明ReImpeller具有一定的可行性与实用性．     

基于VBA的试卷分析研究

VBA是微软开发出来的一种通用的自动化语言,在办公自动化程序中应用广泛。本文中提出使用VBA编程的方法,实现计算机对试卷分析的自动化处理,提高了工作效率和准确性。     

农业机械化管理信息年报系统设计

针对我国农业机械化管理信息年报工作中存在的信息加工传递不及时、信息管理困难、年报结果滞后于工作需要等问题,利用Visual Basic语言设计开发了"农业机械化管理信息年报系统",初步解决了上述问题,规范了农机化管理信息年报工作,提高了农机化年报信息的有效性和时效作.     

落叶松锯材外观分等与机械应力分等的试验研究

根据中国、日本、美国三国的外观分等标准,对落叶松试材进行了以强度为基础的外观分等;采用机械应力分等机对落叶松试材进行了应力分等试验,并分析比较了三国不同的外观分等结果与机械应力分等检测的相关关系。     

基于ASP.NET的野绿色先锋冶生态网站设计与实现

以野绿色先锋冶生态网站开发为例,介绍了如何以ASP.NET为技术开发平台,使用Visual C#语言开发一个网站的过程。网站设计以Web 2.0为标准,采用了DIV+CSS来表现结构布局。     

Gradients of abundance and biomass across reserve boundaries in six Mediterranean marine protected areas: Evidence of fish spillover?

Marine protected areas (MPAs) are considered as an effective tool in marine coastal management, and considered able to enhance local fisheries through adult fish spillover. Indirect evidence of fish spillover could be obtained by horizontal gradients in fish abundance. To address this question, the existence of gradients of fish abundance and biomass across marine reserve boundaries was assessed in six Mediterranean MPAs using underwater visual censuses performed at various distances from the core of the MPA, in integral reserve (IR), to buffer zone (BZ) and fished areas. A reserve effect was evidenced with higher values of fish species richness (×1.1), abundance (×1.3), and biomass (×4.7) recorded inside MPAs compared to adjacent fished areas. Linear correlations revealed significant negative gradients in mean fish biomass in all the reserves studied after the effect of habitat had been removed, whereas negative gradients in abundance were less conspicuous. Generalized additive models suggested two main patterns of biomass gradients, with a sharp decrease at the IR-BZ boundary or at the BZ-fished area boundary. It was estimated that fish spillover beneficial to local fisheries occurred mostly at a small spatial scale (100s of metres). The existence of regular patterns of negative fish biomass gradients from within MPAs to fished areas was consistent with the hypothesis of adult fish biomass spillover processes from marine reserves and could be considered as a general pattern in this Mediterranean region.     

Microsoft Visual FoxPro在森林资源调查成果统计中的应用

森林资源调查是合理组织森林经营,实现森林多功能永续利用、建立和健全各级森林资源管理的基本技术手段。其调查成果主要是以图件和统计表为表现形式。文章主要讲述了利用Microsoft Visual FoxPro进行成果数据库的逻辑检查、统计、汇总的整个过程,体现了该软件的简单易学,功能强大的特点。     

多相流模型组件化研究

针对目前石油工业多相流模型通用化的现状,采用现在流行的组件技术,在Visual Fortran中将多相流模型组件化,着重对组件进行了通用化研究,并以Beggs-Brill模型组件化为实例,着重研究了组件保持相同接口的方法,使所有的模型接口有统一的标准,最后在VC中对Beggs-Brill模型组件进行了调用。研究结果表明,组件化后的多相流模型易于复用和扩展。     

Chemical control of weeds in wheat (Triticum aestivum L.) in Iran

Experiments were conducted in 2006–2007 at six research stations of the Iranian Plant Protection Research Institute to study the efficacy of different herbicides to control weeds in wheat. Treatments included mesosulfuron-methyl plus iodosulfuron-methyl-sodium plus mefenpyr-diethyl (WG) at 45 + 45 + 135 g a.i./ha, respectively, sulfosulfuron at 21, 31.5, 42 and 51 g a.i./ha, chlorsulfuron at 15 g a.i./ha, bromoxynil plus MCPA at 600 g a.i./ha with clodinafop propargyl at 64 g a.i./ha, sulfosulfuron plus metsulfuron-methyl at 36 g a.i./ha, mesosulfuron-methyl plus iodosulfuron-methyl-sodium plus mefenpyr-diethyl (OD) at 15 + 3 + 45 g a.i./ha, respectively, and a full season weed-free control. Herbicides were applied at wheat tillering. Results showed that sulfosulfuron plus metsulfuron-methyl, and bromoxynil plus MCPA with clodinafop propargyl resulted in satisfactory weed control and wheat grain yield at most locations. Weed control efficacy of both formulations of mesosulfuron-methyl plus iodosulfuron-methyl-sodium was variable across locations. Efficacy of the OD formulation appears to depend upon location, so that application of this herbicide at Shiraz and Gorgan resulted in better weed control compared to use of the WG. Satisfactory performance of the OD formulation at Gorgan and Shiraz could be attributed in part to the even pattern of rainfall distribution during the growing season and wheat cultivar used, respectively. With respect to grain yield, however, the OD formulation was better than WG formulation at most of the locations.