数值技术

In addition, different working system, rational waterflood cycle and water injection rate varying range are also having certain influence.

应用油藏数值模拟技术，结合室内研究成果，对周期注水机理进行研究分析，结果表明，渗透率和毛管力是影响周期注水效果的主要因素，不同工作制度、合理周期注水、注水量变化幅度对其效果也有一定影响。

Due to the limitations of experimental researches, such as technique difficulties and high expenses, methods of numerical simulations have been constantly developed and perfected in recent years. With this, lots of valuable results which presently are not acquirable through experiments have been obtained.

鉴于实验研究具有技术难度大和费用昂贵等局限性，数值模拟方法近年来得到了不断地发展和完善，获得了许多目前无法通过实验得到的宝贵结果。

The nonlinear one-dimensional advective equation and the twodimensional inertial wave equations are used to verify the validity of the VCA technique and the new method of calculating the step size.

本论文也同时结合了非线性一维平流方程和二维惯性波方程进行了具体数值试验，从而验证了VCA技术对模式修正的有效性以及推导出的计算优化步长公式的有效性

The largest amplificatory wavelength in this experimental situation,found through analysis and numerical calculation,is 4.0 mm,which is validated by Naphthalene visualization.

通过升华法试验验证了理论分析与数值计算结果。在试验中使用丝网印刷技术在后掠机翼前缘添加粗糙带，成功地引入了理论计算的最大放大率波长。

Next,three aspects were considered as key technology and research challenges of bascule bridge deck surfacing here,development on light paving material and research on thin deck surfacing system,numerical simulation of the mechanical properties of bascule bridge deck surfacing based on long cantilever structure and contact behaviors between interfaces,bonding layer material testing.

在介绍国内外立转开启式桥梁桥面铺装研究现状的基础上，从轻质铺装材料开发和薄型铺装结构研究、基于大悬臂结构和界面接触特性的力学性能数值模拟、黏结层材料试验3个方面阐述了立转开启式桥梁桥面铺装研究的关键技术和难点。

Based on the theoretical analysis and data simulation of the characteristics of the return signal, the factors influencing the capability of minimum depth of an airborne laser bathymetry and the improved technical methods are discussed.

针对回波特性进行理论分析和数值模拟，讨论影响机载激光测深系统的最小可探测深度的各种因素和解决的技术途径。

Then, studying the theories and algorithms of Hidden Markov Models in detail, and discusses some issues in actual applications and gives corresponsive solution means to them. At last the functions of HMM used in cutting vibrations forecast are given.

第三章应用HMM中的Hterbi算法进行信号的数值滤波处理，讨论了振动信号的特征提取方法，以及幅值谱矢量的标量量化技术，最后提出了机床切削过程中的FFT-HMM颤振预报方法。

Alternating Direction Implicit-Finite Difference Time Domain is unconditionally stable and the maximum time step size is not limited by the Courant stability condition, but rather by numerical error.

摘要基于交替方向隐式技术的时域有限差分法是一种非条件稳定的计算方法，该方法的时间步长不受Courant稳定条件限制，而是由数值色散误差决定。

The inperfect crystal structure and its analysis for materials, is an elective course for the master graduate student, which include the crystallology principle, development of crystal diffraction, crystal determination and computer simulation of new phase, analysis of solid solution and superstructure, correction of crystal structure and bondvalent theory, analysis of inperfect crystal structure, analysis of amorphous structure and so on.

材料不完整晶体结构及其分析方法，为材料科学及工程等专业硕士研究生的选修课，内容包括晶体学基础、晶体衍射技术最新进展、新相晶体结构测定与数值模拟、固溶体与超结构分析、晶体结构修正与价键理论、不完整晶体结构分析、非晶结构分析等。

The principles, destress results and technical parameters for destress blasting in the side wall of roadway are studied in the field test, numeric simulation and simulation test with equivalent materials.

用现场试验、数值模拟、相似模拟综合方法研究巷帮松裂爆破卸压维护软岩巷道的原理、卸压效果和技术参数。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。