非
- 与 非 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The results are presented and compared with the available results of other authors, which shows satisfying agreement. And a submerged body beneath the free surface in accelerated motion is considered; the numerical results of instant wave resistance and free surface elevation are presented and discussed.
对非定常线性兴波问题的求解,第5章作为算法的验证,从较简单的近自由面运动潜体的非定常兴波问题入手,首先对无限水深近自由面潜体突然加速和渐近加速的非定常兴波问题作了计算,给出了非定常兴波波形和非定常兴波阻力随时间的变化曲线,计算结果与其它文献给出的结果进行了比较,其吻合程度令人满意。
-
Discussion is made to some properties of aspheric surface. A novel method is presented to define and calculate the best fitting sphere and the asphericity of high order aspheric surface. Thus, the asphericity calculations of the conicoid and high order aspheric surfaces are unified.
在本文中,对非球面的一些性质进行了讨论,提出一种新的高次非球面的最接近球面及最大非球面度的定义和计算方法,实现了轴对称的高次非球面和二次非球面的非球面度计算的统一。
-
The coordinate transformation and numerical integration was executed on the discretized tetrahedral elements based on which the 3-D MT vector-finite element method was implemented. A whole computation framework for 3-D vector-finite element method with unstructured mesh was given. Based on this some typical models were tested which has demonstrated that our algorithm could distinctively avoid problems caused by the fake solution and both the accuracy and efficiency were enhanced which made our algorithm has a bright future for further application.3. According to theory of Sobolev vector space and the discretization of Helmholtz space, the error estimate which was suitable for 3-D MT vector-finite element modeling was deduced by which the procedure of adaptive technique was guaranteed.4. Based on the fully unstructured tetrahedralization and optical strategy, the 3-D magnetotelluric h-adaptive vector-finite element method was presented through combining the error estimate. With this work, the accuracy and creditableness for 3-D MT complicatedly modeling was guaranteed.5. The 3-D magnetotelluric h-adaptive vector-finite element algorithm with unstructured mesh was implemented.
针对非结构化的四面体单元,采用坐标变换和数值积分方法,实现了MT三维矢量有限单元分析,建立起基于非结构化网格的三维MT矢量有限元计算流程,并对典型模型和国际标准电磁模型进行了数值模拟,结果对比和分析表明,基于非结构化网格的三维MT矢量有限元不仅消除了节点型有限元的伪解,而且具有很高的计算精度和速度,有广阔的应用前景。3、根据Sobolev函数的向量空间和Hemlholtz空间的分解,推导出基于残差的三维大地电磁矢量有限元后验误差估计公式,为三维大地电磁自适应矢量有限元数值模拟的实现奠定了基础。4、在完全非结构化四面体单元剖分及优化基础上,结合三维大地电磁矢量有限元后验误差估计公式,提出了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算策略,保证了对复杂大地电磁模型数值计算的精度和可靠性。5、实现了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算流程,对典型模型和国际标准电磁模型进行了数值模拟。
-
The second chapter is the main part of this paper, in which the formulation of the Riemann boundary value problem of non-normal type on the real axis, the solution method of homogeneous problem, the relation between the two kinds of different derivatives and the inhomogeneous problem will be thoroughly given. In this paper, the solution and the solvability of the Riemann boundary value problem of non-normal type on the real axis will be given. Furthermore, it is shown that the twokinds of derivatives of the function Ψ are existing and equivalent in the case ofthe solution about the original problem, therefore, we get uniformly Hermite interpolatory polynomial. The relation between the two kinds of different derivativesof the function Ψ are similar for smooth closed contours by means of the same proof.
第二章是本文的主要部分,分别给出了实轴上一类非正则型Riemann边值问题的提法、齐次问题的解法、两种导数的关系及非齐次问题的求解,本文运用杜金元教授[11]的方法获得了实轴上非正则型Riemann边值问题的封闭解及可解性条件,且在问题可解的情况下论证了函数Ψ的非切向极限导数和Peano导数存在且相等,从而获得了统一的Hermite插值多项式,同样关于封闭曲线上非正则型Riemann边值问题,采用本文论证方法证得了函数Ψ的非切向极限导数和Peano导数存在且相等,从而较好地统一了[10]、[11]中的Hermite插值多项式。
-
The study of heterogeneous mapping algorithm based on the human eyes space-variant system. According to the "one-one mapping ring" and mapping direction we classify the mapping transformation into two sorts: forward algorithm and reverse algorithm. Based on the general rules of constructing this mapping model linear model and arctangent model are studied and verified.
本文基于人眼的空间分辨率可变视觉理念,研究了非均匀采样变换实现算法和非均匀采样变换的尺度轴转换与角度轴转换具有的"一一映射环"以及非均匀采样实现的两类转换:正向转换与逆向转换;在非均匀采样转换模型的基本构造规则基础上,讨论了区别于对数极坐标转换的线性非均匀采样模型及反正切非均匀采样模型的建立。
-
The model of nonhomogeneous clutter environment is the precondition of the following research.3、Clutter non-homogeneity detector is studied, and a new clutter non-homogeneity detector is proposed by using frequency center idea for clutter spectrum shifting and nonhomogeneity of clutter power.
适合非均匀杂波环境的机载雷达接收数据模型为后续的适合于非均匀杂波环境的STAP方法提供了基础。3、研究了杂波非均匀检测器,针对杂波谱移动非均匀和杂波功率非均匀,提出了"频心"法杂波非均匀检测器。
-
Detailed work have done at four aspects as follows: the usage of SPIV in multistage turbomachinery; the study of compressor rotor tip complex flow with SPIV; the study of compressor stator tip complex flow with Rotor/Stator interaction and the detailed analysis and comparison of the unsteady flow field respectively obtained by CFD and experiment investigation.
详细本文主要以SPIV非定常实验测量和CFD非定常数值模拟为工具,研究叶轮机端壁复杂流动的一些机理性问题,围绕四个方面开展了叶轮机端壁非定常流动方面的研究工作:适用于多级叶轮机械使用的SPIV技术;压气机转子尖区复杂流动;动静叶干扰条件下压气机静子内尖区非定常流动;以及非定常数值模拟结果与非定常实验测量结果的对比。
-
Operations are given and testified in this paper. The research methods of intrinsical linear nonholonomic dynamics are similar to those of holonomic dynamics.The rationality and equivalence of Chetaev model and Vacco model in the intrinsical linear nonholonomic system are testified from the mathematic and mechanical aspects. The essential reason is the nonlinear property of intrinsical nonlinear nonholonomic constrain that bring on Chetaev model and Vacco model inequivalent. Chetaev model is a linear approximate method in intrinsical nonlinear nonholonomic system. Vacco dynamical equations are not satisfied to the ideal constraint force conditions, but it gives a significative ponderation on the realizations of intrinsical nonlinear nonholonomic constrain.
本文比较研究了一般非完整系统的Chetaev模型和Vacco模型,首次从力学和数学的角度论证了这两种模型在完整系统和本质线性非完整系统中的合理性和等价性;同时给出了在本质非线性非完整系统中,Chetaev模型和Vacco模型不等价的根本原因,是由本质非线性非完整约束的不确定性非线性本质所导致的;指出在本质非线性非完整系统中,Chetaev模型是一种线性近似的结果,Vacco动力学方程虽然不满足约束力的理想性质,但是为我们研究本质非线性非完整约束的物理实现提供了有益的思考。
-
The hypothesis on the equivalence in non conservative system is set up for irreversible process on the basis of bring\|in of the nonconservative noninertial system;and the hypothesis on the covariance in non conservative system is put forth for the space time with complex action on the basis of bring\|in of the ultra gauge.
在引入非保守非惯性系的基础上对不可逆过程建立非保守系等效性假设,在引入广域度规的基础上对具有复杂行为的时空建立非保守系协变性假设;利用密度分布的不均匀度h和粗粒熵S及推导的多标度因数η计算式,引入非保守惯性质量和非保守引力质量。
-
The correct rates and the mean response latencies were subjected to ANOVA with repeated measures. Result:In both supraliminal and subliminal affective priming tasks, the mean response latencies were significantly longer for affectively incongruent trials, as compared to those for affectively congruent and control trials. The correct rates for affectively incongruent trials were the lowest.Subjects were relatively slower to respond to positive target pictures than to negative target pictures(96.9%/95.3%,97.6%/95.8%).In subliminal affective priming task, there were no differences of correct rates and latencies between alexithymics and nonalexithymics. In supraliminal priming task, the latency of alexithymics was longer than that of nonalexithymics (536.3ms/496.4ms).
结果:在阈下和阈上启动任务中的正确率,情绪启动状态的主效应均显著(F=14.38,P=0.000,F=3.28,P=0.042),启动和控制状态的反应正确率均高于非启动状态(阈上:启动状态97.3%/非启动状态96.1%,阈下:启动状态96.8%,控制状态96.8%,非启动状态94.7%),而启动状态的平均反应时则均短于非启动状态(阈下:启动,537.2ms;控制,550.8ms;非启动598.4ms;受试对负性图片的反应正确率显著高于正性图片(如阈下:96.9%/95.3%,阈上:97.6%/95.8%,对负性图片平均反应时显著短于正性目标图片;在阈下启动任务中,述情障碍组与非述情障碍组在正确率和平均反应时上均无显著性差异;在阈上启动任务中,述情障碍组的平均反应时显著长于非述情障碍组(536.3ms/494.4ms)。
- 推荐网络例句
-
Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
-
In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
-
The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。