This paper describes the formation of the harmonic current in trolley wire and the developing process of the harmonic resonance, also the analysis of the transmission equation of the harmonic current.
本文叙述了接触网牵引电流谐波的产生及谐振过程，分析了谐波电流的传输方程。
And for the first time, the dynamic equation was given as following:〓 The best reaction route of formation of MgB〓 phase should be reaction between liquid and solid, which can be avoid the porosity in MgB〓 and improve the connection of grains.
首次得出了MgB〓成相反应的动力学方程：〓＝6.9×10〓（1-α）〓e〓提出理想的MgB〓的成相反应是应当通过固-液反应来形成。
Based on this model, the well-log response equation is deduced and the calculation of inhomoge-neous formation porosity.
同时，利用分形理论的幂定律，对泥质含量、含水饱和度和渗透率等参数的计算公式作了改进，可以更好地适应非均质地层参数的计算。
The study revealed that: 1 chlorite occurred in vein, agglomerate or had the false pattern of biotite type, or the worm or bladed configuration; 2 Fe/Si diagram revealed mast of the chlorite occurred in the ferroamesite and aphrosiderite areas, few in the pycnochlorite area; 3 the formation temperature of chlorite varied from 179-276℃, mainly within the range of 230-260℃ as calculated by the empirical equation presented by Battaglia; 4 chlorite was formed in the reducing condition, the main formation mechanisms were dissolution-precipitation and dissolution-migration-precipitation.
研究表明：①岩石中绿泥石主要呈脉状、黑云母假象或团块状等产出，具有蠕虫状、叶片状等形貌特征；②绿泥石的Fe/Si图解显示201和361铀矿床中绿泥石主要为铁镁绿泥石和蠕绿泥石，少数属密绿泥石；③根据Battaglia提出的经验方程式计算了201和361铀矿床绿泥石的形成温度变化于179~276℃之间，且主要介于230~260℃之间；④绿泥石主要形成于还原环境，其主要的形成机制是溶解－沉淀和溶解－迁移－沉淀。
The basic principles of the topographic simulation by binary interpolation formula and the ore body bottom and ore body thickness simulation by trend equation were analyzed, and the random formation of schematic section view of ore body was illustrated.
论述了二元插值公式对地形进行模拟、趋势方程对矿体底板和矿体厚度进行模拟的基本原理，并结合实例对矿体示意剖面的随机生成进行了说明。
We wrote down an equation consists of surface coverage of the reactants and probability of formation of the TMA- and H2O-related surface complexes to simulate the growth rate of an ALD system.
我们藉由写下的一条与反应物表面覆盖程度和表面错合物反应机率相关的式子模拟了一套原子层沉积系统可达到的成长速率。
This one-way wave equation fits eikonal equation and transport equation corresponding to full acoustic wave equation in travel-time and first order amplitude. According to the perturbation theory often used in inverse solution, we split the velocity field into intraformational constant velocity background and variable velocity disturbance. Then we calculate time-shift quantity of migration and amplitude correction coefficients for wavefield depth continuation in total uniform formation and each formation.
基于反问题求解中常用的摄动理论，把速度场分裂为层内常速背景和变速扰动，求得整个均匀层波场深度延拓的偏移时移量及振幅校正系数、各层的偏移时移量及振幅校正系数，从而得到一个基于傅里叶有限差分法的双域保幅叠前深度偏移算子方程。
Setting up mathematic model of slipper pair lubrication film formation through squeezing and making quantificational study Pressure-flow analytical formulas of lubrication film of slipper pairs on LSHT hydraulic motors are put forward on the basis of numerical calculation of Reynolds equation of steady state by finite differential method. The bottom surface of slipper pairs is rectangle, and the effect of squeeze flow and pressure differential flow is considered. The dynamic process of lubrication film formation through squeezing is numerical studied by computer simulation.
本论文的主要研究内容：1、建立了滑靴副油膜挤压形成过程的数学模型和进行了定量分析在数值求解雷诺方程分析矩形平板底面稳态压力场分布规律的基础上，推导出了考虑压差效应和挤压效应的曲轴连杆式低速大扭矩液压马达滑靴副矩形投影底面的压力流量关系，计算机模拟仿真了润滑油膜的挤压形成过程。
In the thesis, Kinetic Monte Carlo simulation method and Rate Equation analysisare used to investigate the dynamic scaling properties of pattern formation andstability of nanostructures on surfaces.
本文采用动力学蒙特卡罗模拟方法以及速率方程方法研究了表面纳米结构形成和稳定性的动力学标度性质。
In this paper we derived the response functions of the electromagnetic wave logs in a 2-D axis-symmetrical formation and proposed a fast algorithm based on the integral equation of electromagnetic field and the weak scattering approximation.
单发双收电磁波测井测的是两接收线圈的感应电动势之间的相位差和幅度比及测井响应与地层介电常数和电导率两者有关的一般情况，对此本文推导出其在二维轴对称介质中响应函数公式，给出它的快速算法。
The model can be incorporated in six-DOF equation of formation flight.
该模型可引入编队飞行六自由度方程。
Under the same fluid medium saturated, the wave velocity is in reverse proportion with the rock granularity. According the actual P-wave and S-wave data, the thesis establishes the binomial formula of transformational relation between P-wave and S-wave using the least squares method. The thesis realizes transformation of the different frequency wave velocity using the viscoelasticity frequency dispersion equation, resolving the corresponding relation of lithological-electrical parameters, establishing the elastic parameter explanation model and dynamic and static elastic parameters transformation directly basing the simulation formation temperature, the formation pressure and the fluid saturated. Basing on different lithology, the thesis establishes mudstone`s compressing strength and the new sand compressing strength formula including information of rock density, acoustic velocity and content of clay, resolving the problem of compressing strength interpretation difficulty. And the thesis forms the rock mechanics parameter experiment, well logging interpretation and the assessment method system.
研究结果表明，饱水岩样波速度大于干燥岩样波速，相同饱和流体介质条件下，波速与岩石粒度成反比，同时利用实测纵横波数据采用最小二乘法进行二项式拟合获得研究区横波时差计算公式；采用粘弹性频散方程，实现不同频率声波之间的转换，解决了岩电对应性问题，直接建立起模拟地层温度、压力及饱和流体性质下的岩石力学强度参数、弹性参数解释模型及动静转换关系式；在区分岩性的基础上，考虑泥质含量对岩石抗压强度的影响，建立起模拟地层条件下砂岩、泥岩抗压强度测井解释评价方法，解决了岩石抗压强度测井解释难的问题，同时形成了岩石力学参数试验-测井解释评价方法体系。
In this paper, the mechanical model of positive-negative formation for revolving shell is analyzed, the classification method is given according to the stress yield criterion. The strain yield condition of shell formation is proposed, the stain locus method solving the limit forming coefficient is given. The shell formation of free push sinking is analyzed, sinking stress calculated, and the formula calculating the limit push sinking coefficient given. The relation between the equivalent strain and the Lode's stress parameter β is deduced, the function between β and the geometric parameters after sinking is given. The formula calculating the limit compound bulging coefficient is deduced, the idea of matching force parameter is advanced, and the ratio of longitudinal strain to latitudinal strain is determined. The mechanism of compound bulging small latitudinal corner is studied, the stress equilibrium equation is derived, and the matching condition of bulging force parameter is given. The compound technology of shell sinking-bulging (positive-negative forming) is analyzed, the stress equilibrium equation deduced, and the formula calculating the stress field given.
本文分析了回转壳体正负成形的力学模型，基于应力屈服条件对回转壳体的变形进行了分类；提出了壳体变形的应变屈服条件，给出了极限成形应变的应变轨迹解法；分析了壳体自由推压缩径变形，求解了缩径应力，给出了极限推压缩径成形系数的求解公式；推导出壳体缩径时等效应变与Lode应力参数β的关系式，给出了缩径后的几何参数与β的关系表达式；推导出壳体复合胀形极限成形应变的解析公式，提出了胀形力参量的匹配构想，确定了经向应变与纬向应变的比值范围；研究了纬向小圆角复合胀形的机理，推导出小圆角处的应力平衡方程，给出了胀形力参量的匹配条件；分析了回转壳体复合缩径—胀形工艺，推导出变形区的应力平衡方程，给出了应力场的求解公式。
Based on properties of the materials analyzed and the main reactions in high-temperature smelting process, a mathematical method was used to establish the oxidation-reduction equilibrium equation of lead button formation in fire assay.
根据分析物料的性质及在高温熔融过程中的主要反应，运用数学方法确立控制铅扣的氧化还原平衡方程式，并以此推导出几种矿物的应用公式。
In this paper, the finite-difference time-domain formation of Maxwell's equation is deduced and coded in perfectly matched layer in three-dimension cylindrical complex coordinates.
在三维柱坐系下推导了完全匹配层吸收边界条件的时域有限差分表达式，从而把 FDTD方法推广到完全三维柱坐标系中。
The experimental temperature range was 274-280 K, and the pressure range was 0.65-7.0 MPa. The hydrogen content in the gas mixtures varied from 22% to 92%. By using PR equation of state and suitable mixing rule, the Chen-Guo's hydrate model was extended to calculate the hydrate formation conditions of the hydrogen-containing systems.
将Chen-Guo水合物模型应用於含氢体系水合物生成条件的计算，计算中选用PR状态方程以及刘昆元和汪文川提出的混合规则计算含氢气体混合物的组分逸度系数，并对混合规则中的二元交互作用参数进行了重新回归。
The experimental temperature range was 274―280 K, and the pressure range was 0.65―7.0 MPa. The hydrogen content in the gas mixtures varied from 22% to 92%.By using PR equation of state and suitable mixing rule, the Chen-Guo`s hydrate model was extended to calculate the hydrate formation conditions of the hydrogen-containing systems.
将Chen-Guo水合物模型应用于含氢体系水合物生成条件的计算，计算中选用PR状态方程以及刘昆元和汪文川提出的混合规则计算含氢气体混合物的组分逸度系数，并对混合规则中的二元交互作用参数进行了重新回归。
By using the theories of conservation of momentum, conservation of energy and hydrokinetics, a mathematical model for describing the relationship among the fluid parameters, the formation parameters and the vibrant operation parameters was established. The analytic solutions of one-dimensional and radial transfusion equation for compressive and single-phase fluid flow through the compressive formation were obtained. The effects of each parameter on the vibrant operation were also gotten. On the basis of the above results, the computation models were established.
应用动量守恒、能量守恒、流体动力学等基本原理，建立了地层参数、流体参数和振动作业参数之间相互耦合的数学模型，求出了单相微可压缩流体在可压缩地层中的平面一维和平面径向渗流方程的解析解，得到了各项参数与振动作业效果之间的关系，为振动采油的数值模拟提供了初始压力分布表达式。
The phase method means that the voltage and circuit are expressed as phase, and the RLC components are expressed as resistance or admittance, then the phase model of the circuit are sketched out, the algebraic equation of unknown voltage and circuit phase are written out with the phase formation of KCL, KVL and Ohm`s law. Through the introduction of the phase method, and set up the definitions of resistance and admittance, the author gives out the phase formation of KCL, KVL and Ohm`s law, for their forms are entirely the same as that of the formula used in analysis of direct circuit, we can analyze the phase model of sinusoidal circuit directly using the methods, principles, laws that used in analysis of direct circuit, for example, the net hole method, the method of joint, the superposition theorem, Thevenin's theorem, the equivalent source theorem. The differences lie in:（1）Express all the relations without citing the instantaneous expression of voltage and current, but as the forms of corresponding phases; （2） The corresponding calculations are not algebraic calculations but plural calculations, so the calculations are more difficult than those of the direct circuits.
所谓相量法，就是电压、电流用相量表示，RLC元件用阻抗或导纳表示，画出电路的相量模型，利用KCL，KVL和欧姆定律的相量形式列写出未知电压、电流相量的代数方程加以求解，通过引入相量法，建立了阻抗和导纳的概念，给出了KCL，KVL和欧姆定律的相量形式，由于它们与直流电路的分析中所用的同一公式在形式上完全相同，因此能够把分析直流电路的方法，原理，定律，例如，网孔法，结点法，叠加定理，戴维宁定理，等效电源原理等等直接应用于分析正弦电路的相量模型，其区别仅在于：（1）不直接引用电压电流的瞬时表达式来表征各种关系，而是用对应的向量形式来表征各种关系；（2）相应的运算不是代数运算，而是复数的运算，因而运算比直流复杂。
Parameters such as the coefficient of gas well deliverability equation, the current formation pressure, and open flow capacity, etc.
避免了低渗透气井长时间关井测试地层压力及因地层压力偏低而带来的误差。