Analysis of Load-bearing Characteristics of Concrete Pile Composite Foundation

Some conclusions were drawn from two groups of in-site tests on concrete pile composite foundations. In the tests, it was found that the pressure under the rigid loading slab is different, in which the pressure under the center of the slab is the less and under the edge of the slab is the biggest. The pile-soil stress ratio is not a constant; it increases with the adding of the load. Most of the pile-soil ratio vary from 9 to 13 in these tests and the load that the piles share can be more than seventy percent of the whole load. It was proved that the bearing capacity of the concrete pile composite foundation is high with a little settlement, so it will be used more and more in the future.     

Synthetic Assessment of Power Transformer Condition Based on Matter-element Theory

Condition assessment on power transformer is an important approach to improve reliability of transformer and provide proper decision-making for condition-based maintenance. For long, static assessment method used in the past has already not adapted to the development of modem electricity transmission and distribution technology. So based on the deficiency of fuzzy synthetic assessment method, matter-element synthetic assessment method is introduced. The method can evaluate transformer condition not only in quality but also in quantity. Because each index weight can be given fairly and fast through improved analytic hierarchy process, which need not carry on consistency chec accuracy of assessment can be improved. Examples analysis has proved that assessment method of power transformer condition based on matter-element theory is rational and effective.     

Engineering Calculation Mode Based on Reformative B/S Architecture

Engineering designed mode has entered a new stage because of the development of network. New calculating system based on network appeared. By analyzing the common B/S architecture, this paper brings forward an reformative architecture based on Web services and ASP. NET in order to build the new mode of engineering calculation. It can fully implement the sharing of the resources and provide the engineering designers a wonderful calculating environment, and the working eifficiency of designers can be enhanced.     

夏大豆齐黄29号配套栽培技术

齐黄29号是由山东省农业科学院作物研究所以济3045作母本、潍8640作父本有性杂交，经系谱选育而成的早熟、高产、高油、抗病虫夏大豆新品种，2003年通过国家审定（审定编号：国审豆2003019）。     

荷电喷雾电晕电极诱导电场数值计算与分析

为深入研究电晕荷电喷雾产生电场的分布情况,针对电晕荷电喷雾中常用的多针组合式电极,采用电荷模拟法,运用matlab软件编程,对电极诱导电场进行数值计算,得出了电场中任意点的电势、场强值及其分布图。通过计算分析发现,电晕放电产生的静电场是极不均匀的;场强由电极结构参数-极径、电极尖端曲率半径、电极电压、针状电极的个数以及电极环中心距地面的垂直高度决定;雾滴从喷嘴到靶标的输运过程中,电晕电极产生的电场仅在输运初始阶段对雾滴的运动起主导作用。     

夏季猪舍降温设施与控制系统的研究

夏季高温气候对猪正常生长影响很大。为此，针对夏季猪舍湿热环境的控制，提出了利用机械通风、舍外喷雾和舍内喷雾3种降温方式，并采用PLC控制实现分温度段开启的方法，从而保持猪舍内合适的温湿度。实践证明，该方法经试验效果良好且投资少，是一种实用的猪舍环境控制方法。     

基于“数字流域”的水利信息服务

探讨了流域水利信息服务在随流域数字化进程发展过程中,为了满足各类信息用户的需要而采用的信息服务模式。基于“数字流域”的水利信息服务既不同于传统的手工检索服务模式,也不仅仅是基于WEB的信息服务模式,它是基于由多种前沿技术共同支撑所建立的、以水利信息为主体的流域信息资源网,面向全流域各类水利信息用户的复杂多变的信息需求的新的服务模式。     

计算机视觉在脱水姜片在线分选中的应用

目前,脱水姜片的分选主要靠人工完成,分选精度不高,结果不稳定.为此,研究设计了一套基于计算机视觉的在线分选装置;开发了基于物料颜色参数的实时算法,对物料图像进行特征提取和一系列处理;运用双缓冲技术提高系统运行速度.试验结果表明,分选出的成品中含有的合格姜片达到95.5%,系统测量速度快、分选精度高且运行稳定,满足在线实时分选要求.     

小型闸涵尾水拱网消能试验研究

拱型网板（简称拱网）是设置在消力池里的辅助消能工，它具有良好的水力特性和消能效果，模型试验和原型观测结果表明，消力池中设置拱网可大大降低消力池的规模和工程费用。研究了影响拱网水力特性的几个参数和拱网的消能率。基于模型试验和原型观测结果，给出了确定网高和网距的经验公式。经几个工程应用结果表明，经验公式与实际是相符的。     

半固定管道式喷灌系统移管机行走轮平衡状态的研究

对半固定管道式喷灌系统移管机运行过程中的平衡问题进行了分析研究，建立了运动时行走轮稳定状态的数学模型，论证了研制移管机的可行性。