估计理论

Although the theory of water and soil loss law and the echniques of integrated soil and water conservation measure of primary geomorphy have become quite mature by scientists' effort over several decades in the world, study to water and soil loss in constructional project is slow to developed country. Among researchers, there are many opinions on the model of water and soil loss caused by constructional project because it is serious shortage of data from observation or test in construction projects.

原生地貌水土流失规律和综合治理技术措施经过几十年的研究与探索，基本形成了较为成熟的理论体系和技术措施体系，但我国对开发建设项目水土保持的研究起步较晚，对水土流失预测的概念、内容还存在着不同的理解，特别是目前开发建设项目水土流失定位观测和动态监测数据十分缺乏，水土流失预测模式中的参数缺乏实验值，都是凭经验估计或参照坡面或流域水土流失预报方程中的参数取值，由此预测出的水土流失量误差极大，从而影响到水土保持措施的优化配置。

The operational condition of the Cartesian diver typeof manostat and the dependence of pressure stability on tempreture have beenstudied.

基于浮子稳压器的低压流气系统有制作简单，使用方便等优点，本文通过一些实验以及实验和理论估计的对比找出了提高流气系统工作气压稳定度的一些条件，为制造高稳定度流气系统提供了一点经验。

According to Meese's exchange rate model in 1986, in this paper, we modified Meese's (1986) model and suppose the Interest Rate Parity is untenable, the risk premium factor and real exchange rate parameter are considered, and the Purchasing Power parity doesn't follow random walk, we derive our modified equilibrium model. Base on the State Space Model, we try to estimate bubbles and risk premium which are unobservable variables by Kalman Filter to test which one is or both are the main factors that to cause the real assets price biased from the market fundamental price.

本文是以Meese(1986)所决定的汇率模型为基础，但Messe一文并未讨论到风险溢酬的问题，故本文为了克服此一缺憾，而假设未抛捕的利率平价说(uncovered interest parity，UIP)不成立，以加入风险溢酬因子，且更进一步假设偏离购买力平价理论(purchasing power parity，PPP)不服从随机漫步，若如此则顺利将实质汇率变数纳入於模型中，重新建立均衡汇率模型，为了验证本文所创立的模型，实证方法以状态空间模型为基础，运用卡门滤波器递回法来估计不可观察的变数，以观察台湾的外汇市场上是因泡沫现象还是风险溢酬造成资产价格偏离市场基要价值或是两者皆是造成实际资产价格偏离市场机要价格的因素。

Furthermore, the paper introduces the concept of the trip chain, to construct a female morning commuter trip chain choice behavior model with noncollection theories and methods, to analyze 10 factors that influence a female individual's choice of a trip chain from the source. Subsequently, model parameters are estimated, to calculate the incidents that can help to quantitatively understand the impact of each factor on a female's choice of the trip chain.

进一步地，引入了出行链的概念，利用非集计理论和方法，构建了女性早通勤出行链选择行为模型，从源头上分析影响女性个体出行链选择行为的10个重要因素；并利用模型估计所得的参数计算事件发生比，量化了各个影响因素对女性出行链选择行为的影响程度。

If the assumption is violated and nondiagonal working correlation matrix is used in GEE, the statistical inference may be defficient.

本文首先在第一章介绍了纵向数据和广义估计方程的理论以及研究情况。

Then a global separable nonlinear least-squares identification method which estimates the time delays and transfer function parameters separably is derived to reduce the possibility of convergence to a local minimum by using the global optimization theory.Furthermore,the GSNLS method is modified to a novel global separable nonl...

为降低收敛于局部最小的可能性，利用全局优化理论，推导了全局可分离的非线性最小二乘辨识方法；为消除强观测噪声所引起的参数估计的偏差，将GSNLS方法调整为一新颖的全局可分离的非线性多新息递推最小二乘辨识方法，仿真实验验证了算法的有效性。

This dissertation first introduces the basic theories and algorithms of the spatial spectrum estimation and subsequently investigates the primary problems of the UCA output data model and its beamspace processing.

本文首先介绍了空间谱估计基本理论与算法，进而研究了UCA输出数据模型及其波束域处理的基本问题。

In chapter two and three, for the low-frequency electromagnetic problems in multi-media, an alternate A-φ method (in Chapter 2) and a fractional-step A-φ method (in Chapter 3) based on ungauged vector potentials are developed respectively.

第二、三两章关于多媒质中的低频电磁问题发展了基于非规范势的交替A-φ方法和分数步A-φ方法，并在一定条件下对这两类方法的全离散有限元逼近误差进行了理论上的分析和估计； 3。

Based on above method of counting unsatisfiable solutions, an efficient splitting strategy of theoretical foundation has been proposed.

本文基于前述的对不满足解数估计的方法，提出了一个有理论依据的有效折分策略。

IT ascertains them those IT theory is based on a bulk of assumptions those my changing out to be unture.

她向学院们保证，她的理论是建立在若干假设基本功之上的，这一些假设将估计被证明是错误的。

So that more consumers can enjoy more delicious quality, technology is even better than wine.

让更多的消费者可以品尝到品质更为鲜美，工艺更为精湛的葡萄酒。

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在你最喜爱的文本编辑器中将它打开。