基础

Among the Bayesian distribution, beta distribution is most widely used as a result of its simplicity and flexibility.

基于上述分析，本文在分析现有的概率信誉模型基础上，尤其是β分布信誉模型的基础上，探讨了一种基于高斯分布的形式化信誉模型。

The preoperation diameter of ascending aorta was taken as baseline. Patients were divided according to its baseline aortic diameter into diameter0 mm group and diameter≥40 mm group, furthermore, the patients were also divided according to echocardiographic findings into bicuspid aortic valve group and tricuspid aortic valve group.

以术前升主动脉直径为基础值，按基础值的大小分为直径﹤40mm组和直径≥40mm组，并按主动脉瓣形态分为二叶主动脉瓣组和三叶主动脉瓣组。

Trade cost theory, market validity theory and Commission theory are the economic foundation of Bill broker"s system. Two commission models under symmetry and asymmetry information between the investor and bill broker was structured in view of above, probing into two major interests subjects" distribution mode in interests, risk and encourage goal, and establishing the economies" foundation for the standardization development and perfection of bill broker"s system.

交易成本理论、市场有效性理论和委托—代理理论是证券经纪人制度的经济学基础，据此，笔者构建了信息对称和信息不对称两种情况下投资者和证券经纪人之间的委托—代理模型，探讨两大利益主体在利益、风险和激励上的目标分配模式，为证券经纪人制度的规范化发展和完善奠定了经济学基础。

The dynamic analysis based classification method in the early stage of development is brought forward in the first time ,which consists of:firstly ,the material balance equation and the binomial production equation is solved together for those wells with stable production., to yield the anticipation under constant production ,and constant THP afterwards; Secondly, the R/S fractal method is used to demonstrate the declining tendency for those withdegressive production, and the GM(1,1) model is adopted for simulation and anticipation.

在此基础上进行了定产量／压力条件下的动态预测；②对产量递减井，采用分形理论中的R／S方法，对气井产量变化作了连续趋势性论证，在此基础上采用GM(1，1)模型对递减气井的生产动态进行快速拟合和预测。

Secondly, the steady-state productivity model for horizontal well in gas reservoir is established. On the basis of solving the model, this thesis elicits the binomial deliverability equation by which absolute open flow potential and inflow performance relationship can be got and we can forecast the production performance of horizontal well in gas reservoir. In the end, on the basis of the theoretical analysis, this thesis explores homologous nodal analysis program.

其次，在建立水平气井不稳定渗流数学模型并求得其解的基础上，推导出了考虑地层伤害及非达西渗流影响水平气井产能方程，通过该产能方程可求出水平气井的绝对无阻流量，绘制流入动态关系曲线来预测生产动态；最后，在理论分析的基础上建立了水平气井节点分析方法，并开发了相应的节点分析程序。

In the argument between invention and discovery on patent of biotechnology .I ,firstly, take back look at the definition of invention and discovery in practice of patent of biotechnology in western countries . then ,analyse the possibility of putting the result of basic bioresearch into patent .Finally ,draw a conclusion :we should focus on the achievement of research on natural material and gene invention should be patented as long as the material and gene which have been separated and purified have real value .

关于生物技术专利中的发明与发现之争，本文首先回顾了西方发达国家在生物技术专利实践中对发明与发现的界定，接着分析了生物技术基础研究成果的可专利性，最后得出结论，我们应淡化发明与发现之分，着重于"三性"审查，即只要天然物质和基因被分离和纯化以后具有工业实用性，就应该给天然物质和基因发明等基础研究成果授予专利。

Chapter 1: The commonly used methods of high temperature measurement are introduced simply. The law of black body radiation which radiation thermometry depends on is elaborated. Based on this theory, the merits of colorimetric temperature measurement are introduced.

第一章：简单介绍了高温测量的常用方法；阐述了辐射测温系统的理论基础黑体辐射定律，并在此理论基础上介绍了比色测温原理以及比色测温的优点；最后还给出了系统的工作流程。

In this paper, we propose a new visual cryptographic method for gray-level and chromatic images without pixel expansion. We simultaneously encrypt m successive pixels (called an "encryption sequence") each time in accordance with two basis matrices. In every m encryption sequences with b blacks, we make sure that b encryption sequences are encoded by black basis matrix, and the other ones are encoded by white basis matrix.

本研究提出一种不需要像素扩展的灰阶和彩色视觉密码的技术；我们的方法利用多点同时加密的概念，每次取连续的 m 个点做为加密序列进行加密，我们的方法可以确保在 m 个具有 b 个黑点的加密序列中，一定会有 b 个加密序列是使用黑点基础矩阵加密，另外的个则使用白点基础矩阵加密，因此在叠合影像上黑与白的变化很规律。

Supported by Blackland GRASS Geographic Information System,the basic and special environmental databases of West Lake Watershed were established.

以地理信息系统(BlacklandGRASS软件)为基础平台，建立了西湖流域基础和专题数据库；结合地下水污染风险评价专业模型，计算出流域内地下水污染风险图。

Because of that, the theory foundment of classification, analysis and designing about controll block is set up.

提出、分析和全面阐述了机械控制模块的共同理论体系和分析方法基础，从而为控制模块的分类、分析、设计等提供了理论基础。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。