查询词典 field

A C++ program is developed for composing the stiffness matrix of the temperature field, saving it in changing bandwidth method and calculating the linear algebraic function group through using the Gauss eliminating method. A module for drawing the color fringe of tire temperature field is created, which makes the result more visual. Taking the 9.00-20 cross-ply tire on CA1092 as an example, the finite element numerical simulation analysis of automobile tire 2-D steady temperature field is completed. Through comparing the result with the analysis data by ANSYS, this software is proved to be capable of the modeling, calculating and post-processing of FEA of automobile tire 2-D steady temperature field.

采用C++语言完成了温度刚度矩阵的总体合成及其一维变带宽存贮，以及线性代数方程组高斯消去法求解等工作，采用C++语言实现了汽车轮胎二维稳态温度场云纹图的绘制，使得计算结果更加直观，也更能形象地显示汽车轮胎二维稳态温度场的分布状况，以CA1092（原CA142）五吨载货汽车用9.00-20尼龙斜交胎为例，进行了汽车轮胎二维稳态温度场有限元数值仿真分析，通过与ANSYS分析结果进行比较，说明所开发的有限元建模、求解以及后处理软件能够用于汽车轮胎二维稳态温度场有限元分析。

This is quite useful: one may safely enlarge the field ''K'', for instance to get an algebraically closed field; Jordan forms can then be computed over the large field and can be used to determine whether the given matrices are similar over the small field.

不是所有的矩阵都可以对角化，但至少在复数域内，所有的矩阵都相似于一些被称为

State Key Laboratory of Millimeter Waves, Southeast University , Nanjing 210096, ChinaIn this paper, it is proven that the divergence relationship of electric-field and magnetic-field is non-zero even in charge-free regions, when the electric-field and magnetic-field are calculated with Alternating Direction Implicit Finite-Difference Time-Domain method, and the concrete expression of the divergence relationship is derived.

摘要该文证明了即使在无源区域，交替方向隐式时域有限差分法所给出的电磁场量不满足零散度关系，同时推导出了该散度关系的具体表达式。

CAN field-bus is a kind of serial communication network, which supports distributed control or real-time control effectively. Because of its excellent characteristic and high reliability, CAN field-bus is highly thought of by industries. As the main data channel, 1553B field-bus relates various subsystems that are included in the integrated electronic system of avigation. Due to its excellent performances, 1553B field-bus has been widely applied in avigation, spaceflight, navigation and other weapon equipment.

CAN现场总线是一种有效支持分布式控制或实时控制的串行通信网络，具有卓越的特性和极高的可靠性，受到工业界的高度重视。1553B现场总线作为航空电子综合系统中各子系统之间交联的主要数据通道，因其性能优异，已在航空、航天、航海和其他装备上得到广泛的应用。

In the space filled with dielectric, Coulomb's law should be: F = kQ1Q2r2.V in the electric field generated dielectric polarization bound charge and bound charge generated within the medium electric field, and external electric field in the opposite direction, so to diminish the external electric field.

在充满电介质的空间里，库仑定律应为：F＝kQ1Q2r2.V在电场作用下电介质极化产生束缚电荷，束缚电荷在介质内部产生电场，与外电场方向相反，所以使外电场减弱。

The proposed method has the merit that the numerical characteristics of stochastic temperature field response can be obtained by analyzing the random temperature field just in one time.3. Perturbed numerical algorithm of nonprobabilistic convex set theoretical models on the temperature fieldThe uncertain parameters of physical parameters and initial boundary conditions of heat conduction are described by the convex model. The perturbation formulas of the upper and lower bounds of temperature field response with unknown-but-bounded parameters are given via the combination of matrix perturbation theory and the convex set theory model.4. Numerical analysis for transient temperature field with interval parametersConsidering the uncertainties of the transient heat transfer, the physical parameters and initial boundary conditions are regarded as interval variables.

该方法具有只进行一次随机温度场分析便可以获得其响应的数字特征的优点。3、温度场的非概率凸集合理论模型的摄动数值解法将结构导热的物理参数、温度场的初始和边界条件等不确定性参数以凸模型加以描述，基于矩阵摄动理论和处理不确定问题的凸集合理论模型的结合，导出有界不确定参数瞬态温度场响应所在集合的上、下界摄动计算公式。4、具有区间参数的瞬态温度场数值分析考虑结构瞬态热传导问题的不确定性，将结构各物理参数和温度的初、边值条件均视为区间变量。

Having introduced a set of dimensionless parameters, the spatial distributive function of the magnetic field and the induced electric field is made dimensionless and is applied to the computation and computer simulation of spatial distribution of the magnetic field and the electric field induced by a circular coil and a 8-shaped coil based on MATLAB.

在确定了一些无量纲参数后，对磁场及感应电场的分布函数进行无量纲化，并用于基于MATLAB环境下圆形、8字形线圈磁场及产生的感应电场的计算及其分布的计算机仿真。

A theoretical description of the deformed state of QCs requires a combined consideration of interrelated phonon and phason field. The phonon field describes the motion of lattices in physical space, while the phason field describes the quasiperiodic arrangement of atoms in the complementary orthogonal space, which interact with one another. Owing to the existence of phason field, the elasticity of QCs is more complex than that of the conventional crystals.

准晶弹性的刻画不仅需要描写晶格振动的声子场，还需要刻画原子准周期排列的相位子场，而且二者是相互耦合的，所以准晶的弹性较经典的一般晶体的弹性复杂的多。

The magnetic merging line is constructed by minimum points of magnetic field strength along a large number of last closed magnetic field lines and several properly selected last closed field lines,whereas the radial ray integration of convectional electric field is used to calculate the electric potential on the merging line.

磁合并线由大量地磁场最外闭合力线的最小磁场点和若干合适选择的最外闭合力线连接而成，合并线上的电势分布通过沿径向射线积分对流电场获得。

In the light of geological characteristics of Dongfang 1-1 Gas Field, mass indoor experiments are conducted and studied. Sand grain level are analyzed, the sand control parameters and screen pipe and blind pipe combination proportion is optimized. On this basis, the most suitable horizontal screen pipe sand control method for this gas field is found. Through the medium of DONGFANG 1—1 gas field field conduct proven, the sand control technology are completely run up to DONGFANG 1-1 gas field completion require.

针对东方1—1气田的具体地质特征，通过大量的室内实验研究，对地层砂粒度进行了分析和分选性研究，对防砂参数和筛管与盲管的组合比例进行了优化，从而找出最适合该气田的水平井筛管防砂完井方法，通过东方1—1气田的现场实施证明，该防砂技术完全达到了东方1-1气田完井的要求。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。