模拟

The simulation result of water and salt distribution is verified using data obtained from experiment that is conducted in the greenhouse. The result indicts that good agreement is obtained between simulated and measured water and solute distribution, and simulating precision of Hydrus 2D is good enough for selecting the design and running parameters of drip irrigation system.

结果表明，土壤水分与盐分浓度的模拟值与实测值吻合良好，在模型建立正确，土壤水分与盐分运动参数选取合理的情况下，Hydrus 2D对于水分与盐分运移的模拟精度均可以满足滴灌系统设计与运行参数选取的要求。

The relation between the center of time gravity of the ultrashort pulse and the carrier phase was studied by using three kinds of pulses,named Gauss,Hyperbolic Secant and Lorentz pulses.The analytical expressions of the relation between them was deduced.

以Gauss、Hyperbolic Secant、Lorentz三种脉冲为例，利用理论推导和数值模拟的方法研究了载波相位对超短脉冲时间重心的影响，并给出了三种脉冲的时间重心与载波相位的解析表达式和数值模拟的图形。

First of all, the report introduced evolution, achievments and problems in the study of anisotropy in the inner of earth. The first-order hyperbolic system of equations is work out, which is used to describe the wave motion in 2D transversely isotropic media. Utilizing the characteristics of free-divergence, We have imposed MacCormack theme that is used to simulate multicomponent records in anisotropic media and have developed a fast high order vectorized finite-difference algorithm adapted for the vector supercomputer.

本文首先阐述了地球内部介质各向异性研究的沿革、成就和问题，接着给出了描述二维横向各向同性介质中波动的一阶双曲型方程，利用其自由发散特性，构制了各向异性介质中多波多分量地震记录数值模拟的MacCormack算式，导出了适用于并行计算的二维横向各向同性介质中波动的有限差分模拟算子，该算子具有可并行化计算、相位差小等优点。

The regularities of casing strength distribution were obtained by means of Latin Hypercube stochastic simulation method based on Monte-Carlo method.

采用基于Monte-Carlo方法的Latin Hypercube随机模拟方法，模拟得出了套管强度的分布规律以及套管几何尺寸和管材力学性能的随机性对套管强度随机性的影响规律。

The first four I/O clocks load the address register with the 4-bit address on ADDRESS selecting the desired analog channel and the next six clocks providing the control timing for sampling the analog input.

前四个I / O的时钟加载上选择所需的模拟通道地址4位地址和未来6个时钟提供采样模拟输入控制时序的地址寄存器。

In this thesis, the YSJG computing program is also made on the basis of the model of radiation transmission and the spectral distribution of the radiation from an infrared illuminant flame is simulated.

本文还根据辐射传输模型，编制了计算程序YSJG，模拟了照明剂火焰辐射的谱线分布，为烟火药性能数值模拟的进一步研究和应用奠定了基础。

The application of molecular modeling in immunogen and competitor design was emphasized. The advantage of the application of molecular modeling was revealed.

重点阐述了分子模拟在免疫原和竞争原设计中的应用，揭示了采用分子模拟技术进行半抗原设计的优势在于其能够克服目前半抗原设计方法的经验性和主观随意性。

According to mechanism of ECBM/CO2 sequestration, a mathematical model was developed. In the mathematical model, two-phase flow, multiple gas components and mixed gas sorption, impact of coal matrix shrinkage and swelling on permeability, pressure loss in wellbore were studied.

给出了多分支井模拟CO2注入开采数学模型，模型考虑了气水两相流动、多组分气体吸附、煤基质膨胀和收缩对渗透率的影响以及分支水平井井筒压降；根据数学模型得到了相应的数值模型和计算程序，进行了模拟计算对比。

The main theorem of this paper is to, firstly, on the grounds of experience preliminarily estimate the parameter of the pavement nonlinear model, simulate the process with computer procedure, and check the result with the data collected in sit, then set the aim function and the superiority back-calculation method, if the function is not satisfied, it is to the method adjust the parameter and make the model impend the actuality, If the function is satisfied, it is to end the process, and record the stress, deformation, displacement and the parameter as the actual condition.

本文分析的主要原理：首先根据经验，初估路面结构层应力应变非线性参数，利用计算机程序模拟承载板试验测回弹弯沉的过程，通过现场实测的弯沉数据来检核该模拟过程的真实性，设定目标函数，选定适当的优化反算方法，当目标函数不满足时，即利用该优化反算方法调整本构模型参数，使得模型能够逐步向真实解逼近，当目标函数得到满足时，则认为此时反算得到的路面结构层的应力、应变、位移场为真实的应力、应变、位移场，所推算得到的非线性应力应变模型为真实的路面结构层应力应变模型。

In this paper, the 3D finite element method (3D-FEM) is employed to calculate the responses of the dual-laterolog in the high angle deviated wells. Moreover, under the consideration of the impracticability of the strict 3D inversion of the electrical logging, one method named the fast deconvolution, is given to correct the electrical logs which is calibrated by the forward method, 3D-FEM.

在考虑常规双侧向测井和正演数值模拟计算的基础上，利用三维有限元素法（3D-FEM）进行大斜度井中双侧向测井响应的数值模拟求解，并以不同倾角为条件验证了方法的有效性；进一步针对目前严格的电测井三维反演处理的不现实性，应用严格正演刻度下的快速反褶积处理方法进行定向井的电测井曲线校正。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。