查询词典 numerical analysis

As for the first, I think that Plato claims a kind of ontology, which has numerical character, in the second part of the Parmenides. This ontology provides deliberately the cosmogony of the Timaeus and the theory of the Principles in the Unwritten Doctrines that could justify the possibility of the phenomena that are saved by Forms. This possibility lies in the god's nous and will, i.e. the world that has numerical character is fashioned by the god with Forms as model, and then the becoming phenomena that cling to the receptacle are saved and intelligible.

关於第一个论题，笔者认为，柏拉图在《巴曼尼德斯篇》第二部分的八组推论当中提出一种具有数特徵的存有论，这个存有论绵密、细致地论说《蒂迈欧篇》里的宇宙生成论以及「未成书研究」里的原理论，在这当中，相拯救现象的可能性乃在於---神以其意愿与睿智将相形塑於这个数存有的世界并因此使那些在场域里生灭变化的现象获得一致性，如此，神的意愿

Numerical calculation of the unsteady flow within turbomachinery The periodic unsteady flow within impeller/vaneless diffuser or impeller/vaned diffuser was numerical simulated in this thesis. The simulation was calculated on the CFX software flat.

离心风机内部非定常流动的数值模拟本文对叶轮/无叶扩压器和叶轮/有叶扩压器两种结构形式的离心风机内部流动进行了全流场非定常流动数值模拟。

Based on numerical computation, glass microfiuidic chips are fabricated, and experiments using microfluid fluorescence visualization technology are conducted to study sample electrophoresis transport characteristics in microchannel turns, with the aim to verify results of numerical computation.

在数值计算的基础上，制作了玻璃微流控电泳芯片，采用荧光可视化微流体实验技术，在微流控动态观测平台上实验研究了弯曲微通道中的样品电泳输运特性，验证了数值计算结果的正确性。

Based on the coupling numerical solving method, the velocity distribution and flow behavior of Ar in a ladle furnace lid was calculated and analyzed by numerical simulation.

采用耦合数值求解的方法，计算并分析了LF精炼炉盖内气体流动的速度分布状态以及液面附近惰性气体氩的流动行为和分布。

Based on the coupling numerical solving method, the velocity distribution and flow behavior of Ar in a ladle furnace lid was calculated and analyzed by numerical simulation.

采用耦合数值求解的方法，计算并分析了LF精炼炉盖内气体流动的速度分布状态以及液面附近惰性气体氢的流动行为和分布。

The present study focuses on some important aspects of LES technology. It includes review of LES development, fundamental theory and equations and numerical implementation. The procedure of LES consists of filtering Navier-Stokes equation, modeling subgrid scale, closuring the set of equations and solving the numerical equations.

本文对大涡模拟的研究集中在以下几个方面：首先回顾了大涡模拟技术发展的历程，它的理论基础与滤波方程组，以及它在CFD程序中的数值模拟实现：包括滤波NS方程，模化亚网格量，封闭滤波方程，求解滤波方程。

The Navier-Stockes equations are solved in the numerical space and the numerical results are reversed into the physical space to give the real characteristics of the convecting combustion field.

将数值空间中的模拟结果反变换到物理空间中，就得到了实际的对流燃烧流场特性。

Secondly, we study numerical approximation in terms of numerical fluxes.

其次，以讨论数值流通量的方式，我们研究一般的数值逼近理论。

First, a full three-dimensional numerical model is developed, which considering not only the rib resistance to the species, but both the single- and two-phase flow and transport in the gas channels and diffusers at both the anode and cathode sides of PEM fuel cell. Two sets of boundary conditions, one for a conventional flow field and the other for an interdigitated one, are presented. A detailed discussion of the numerical techniques for the PEM fuel cell model is given with a flow diagram to provide an overview of the solution procedure using FORTRAN language.

该模型考虑了双极板上流道间的筋部对于反应气体传递阻力以及电流密度分布的影响，从而使模型具有三维特性；建模过程中进一步考虑了流道和扩散层中可能存在的液态水，从而将现有的单相流动模型拓展成为两相流动模型，因此，该模型可以同时模拟电池内部阴极、阳极侧流道和扩散层中两相流动的发生和分布情况；分别给出了平行流场燃料电池和交指型燃料电池的边界条件；详细讨论的三维模型的耦合求解算法和技巧；用实验数据验证的该模型的准确性。

For further enhances the numerical control engine laths the processing efficiency, the numerical control engine laths is clamping to the work piece in an engine laths attire then completes the multi-channel working procedure or the complete working procedure processing direction develops, therefore appeared each kind of type processing center engine laths, ike the turning center, the boring mill processing center, drills truncates center and so on.

为进一步提高数控机床的加工效率，数控机床正向着工件在一台机床一次装夹即可完成多道工序或全部工序加工的方向发展，因此出现了各种类型的加工中心机床，如车削中心、镗铣加工中心、钻削中心等等。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。