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dynamical model     
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  动力学模型
     THE DYNAMICAL MODEL OF THE VECTOR MESON φ AND THE VALUES OF THE COUPLING CONSTANTS f_(φK■)~2,f_(ωK■)~2 AND f_(ρK■)~2
     矢量介子φ的动力学模型及耦合常数f_(φK■)~2,f_(ωK■)~2与f_(ρK■)~2的值
短句来源
     Fission Time of the Reaction of 10.6MeV/u 84 Kr( 27 Al, Quasi fission)in Dynamical Model
     用动力学模型计算10.6MeV/u~(84)Kr(~(27)Al,准裂变)反应的裂变时间
短句来源
     A dynamical model of DNA-damage derived p53-Mdm2 interaction
     DNA损伤致p53-Mdm2相互作用的动力学模型
短句来源
     The dynamical model of chemical oscillation in CaF2-HCl-H2O solid-liquid reaction system.
     固-液反应体系CaF_2-HCl-H_2O内化学振荡的动力学模型
短句来源
     Multifrequency dynamical model of pulsed CO_2 lasers
     脉冲CO_2激光器的多频动力学模型
短句来源
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  动态模型
     The Control of Chua Chaotic System Based on Fuzzy Dynamical Model
     基于模糊动态模型的Chua混沌系统控制
短句来源
     Through approximation with a T-S fuzzy dynamical model, the nonlinear system is fuzzified into a local linear model.
     采用T S模糊动态模型逼近非线性系统 ,将非线性系统模糊化为局部线性模型。
短句来源
     GM(1,1) model can be represented as IAGOGMAGO: x|→x(t), it is a dynamical model of the grey system of simple sequence x=(x 1,x 2, ,x n) .
     GM(1,1)=IAGOGMAGO:x|→x(t)是单序列x的灰色系统的动态模型
短句来源
     A novel design method for the adaptive fuzzy synchronization is proposed based on a Takagi Sugeno(T S) fuzzy dynamical model.
     基于Takagi Sugeno(T S)模糊动态模型 ,给出了一个新的自适应模糊同步控制设计方法 .
短句来源
     Nonlinear system is described based on T-S fuzzy dynamical model, and the nonlinear system is translated into local linear model by fuzzy method.
     采用T-S模糊动态模型描述非线性系统,并将非线性系统模糊化为局部线性模型。
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  动力模型
     Research of Finite Element Dynamical Model and Active Vibration Control for Piezo Smart Structure
     压电智能结构有限元动力模型及其振动主动控制的研究
短句来源
     The Numerical Method of Option Pricing and Nonlinear Dynamical Model of Volatility Estimate
     期权定价的数值方法及波动率估计的非线性动力模型
短句来源
     Based on the dynamical model of 2PT-400-17/1 3 machine, the inhere vibrating characteristic of this system is analyzed, the detailed analysis process and its result are described.
     参考 2 PT- 40 0 - 1 7/1 .3型机器的动力模型 ,分析了该系统的自由振动特性 ,给出了详细的分析过程和结果 ;
短句来源
     The results show that the photodegradation rate of benzo[a]pyrene and pyrene decreased as the soil depth increased. The order of photodegradation rate is as follow : 1.0mm>1.6mm> 2.0mm>2.4mm>4.0mm. After modeling the experimental data,the photodegradation of benzo[a]pyrene and pyrene accord to first order dynamical model.
     结果表明,苯并[a]芘和芘的光降解速率与土壤厚度呈负相关,光解速率的顺序为1.0 mm>1.6 mm>2.0 mm>2.4 mm>4.0 mm,通过对实验数据的模拟土壤中苯并[a]芘和芘的光降解符合准一级动力模型;
短句来源
     This dissertation was to study the mathematical theories and methods for structural dynamical model updating. It gave the solutions and the numerical methods of a special structure model updating.
     本文主要研究结构动力模型修正中的数学理论与方法,研究了一类特殊结构模型修正问题,并为线性结构有限元动力模型修正提供了有效的数值方法。
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  力学模型
     ②Research of dynamical model;
     ②力学模型研究;
短句来源
     On the base of the structure of rotor system, the critical speed which is an important parameter in rotor system is studied A dynamical model of a rotor supporting system is set up, and its dynamic characteristics are calculated by using transfer matrix method The effect of changes of parameters on the critical speed is discussed
     从转子结构出发 ,讨论转子系统的重要特征参数临界转速 ,建立风机转子 -支承系统力学模型 ,用传递矩阵法计算了系统的动力学特性 ,分析了参数变化对临界转速的影响
短句来源
     In this paper,the dynamical model of air spring with auxiliary chamber is studied,and the mathematical model of air spring in car suspension is established.
     提出了带有附加气室的空气弹簧的力学模型,建立了空气弹簧在汽车悬架中的数学模型.
短句来源
     It analyzes uplift dynamical model and pull-out test of anchor, discusses compound stress and permanent anchor coefficient of anchor, and researches inherent stress value of anchor, which to be referred fro similar engineering design.
     对锚固体抗拔的力学模型及锚固体抗拔试验进行了分析,探讨了锚杆的复合受力和永久性锚杆系数,研究了锚杆的预应力锁定值,为该类结构工程设计提供参考。
短句来源
     In this paper, the non linear dynamical model of gear meshing has been built up. At the same time, the authors calculated the non linear stable period solution of the coupled system with self adapt vary step auto RK4 method and analyzed the exciting force of gear profile error and pressure angle error in the system as well as the emplitude frequency characteristics.
     建立了齿轮啮合的非线性力学模型,并用自适应变步长auto—RK4数值计算方法求解了齿轮耦合的多平行轴转子系统的非线性稳态周期解,分析了齿轮齿形误差和压力角误差对转子系统的激振及系统的幅频特性.
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  dynamical model
We consider a single-product dynamical model with funds of different structures.
      
The physical processes in the tail of the region where the solar wind interacts with a partially ionized local interstellar medium are investigated in terms of a self-consistent kinetic-gas-dynamical model.
      
The computations are based on a single-zone chemo-dynamical model.
      
We abandon a vague problem of the "appropriate" initial conditions by observing (in a long run) a spontaneous birth and death of arbitrarily big fluctuations for any initial state of our dynamical model.
      
A structural-dynamical model of biacetyl and biacetyl-d6 molecules in the excited electronic state is derived on the basis of semiempirical correlations and the method of hybrid atomic orbitals.
      
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A brief discussion is given about the influence on the vibration mode shapes and frequencies of structures due to large deformations of gellatin model, during a dynamical model test. As mentioned in the paper, the geometrical non-linear behavior of the medel caused by finite deformations will not introduce significant variations to its vibration periods, but its half-periods will be altered. That is, if the first half-period is lengthened, then the second half-period will be shorteneal and vice versa....

A brief discussion is given about the influence on the vibration mode shapes and frequencies of structures due to large deformations of gellatin model, during a dynamical model test. As mentioned in the paper, the geometrical non-linear behavior of the medel caused by finite deformations will not introduce significant variations to its vibration periods, but its half-periods will be altered. That is, if the first half-period is lengthened, then the second half-period will be shorteneal and vice versa. For symmetrical-shaped structure, even the half-periods of vibrations will not be aftected. In general, the influence of such geometric non-linearing is not large, and the free vibration of structures may be Considered as harmonic.

本文讨论了软胶模型动力试验中,因有限变形引起的对结构物频率和振型 的影响。近似地说,仅仅因几何非线性并不改变结构的整个周期,但要影响半 周期的大小。假如前半周期延长了,那末后半周期缩短了。至于对称结构,半 周期也不受影响。一般来说,这种影响不大,所以振动还是接近简谐的。

Basing on the following aspects: 1) the correlation of the macroreiiei and distribution characteristics of the great continental earthquakes in china; 2) the fault plane solution of 127 events; 3) data on 18 great earthquakes of fractured zone; 4) the rate of slip motion along the earthquake fault zones, a dynamical cause of the great continental earthquakes in China was studied, a dynamical model of their stress field adjustment has been presented and is also used to explain the continental seismicity...

Basing on the following aspects: 1) the correlation of the macroreiiei and distribution characteristics of the great continental earthquakes in china; 2) the fault plane solution of 127 events; 3) data on 18 great earthquakes of fractured zone; 4) the rate of slip motion along the earthquake fault zones, a dynamical cause of the great continental earthquakes in China was studied, a dynamical model of their stress field adjustment has been presented and is also used to explain the continental seismicity of china.

本文根据强震区域分布特征与大地貌的相关性,127个地震断层面解,18个大地震破裂带资料和地震断裂带的平均滑动速度等方面的资料,提出了中国大陆地震应力调整场动态模型。最后,基于此模型讨论了中国地震活动性问题。

For orbit improvement, a extended Kalman filter has been suggested in this paper. Processing in real time a few passes of laser ranging observation data from only one tracking station, the satellite position in current future could be precisely predicted. The dynamical model included the effects of the earth non-spherical shape, atmospheric drag, solar radiation pressure as well as lunar and solar perturbations. In computing these kinds of perturbations, the earth gravitational potential was developed...

For orbit improvement, a extended Kalman filter has been suggested in this paper. Processing in real time a few passes of laser ranging observation data from only one tracking station, the satellite position in current future could be precisely predicted. The dynamical model included the effects of the earth non-spherical shape, atmospheric drag, solar radiation pressure as well as lunar and solar perturbations. In computing these kinds of perturbations, the earth gravitational potential was developed up to llth degree and 11th order for all of zonal, sectorial and tesseral harmonic terms; exponential model was adopted for the distribution of atmospheric density; the earth shadow was assumed in cylindrical shape; the rotating Kepler's elliptical orbits were adopted in computing the geocentric coordinates of the moon and the sun. For the estimation of satellite state, the extended sequential estimation algorithm was applied. The numerical method was used to integrate state vector and error covariance matrix. As the tests, two examples using simulated and real laser ranging data of LAGEOS satellite respectively were presented. The applications demonstrate that the rather accurate satellite position of subsequent passes required for laser pointing could be predicted, by using the extended sequential filter structured in here and processing a few passes, a relatively small number of range observation data, even though these data were from only one station. Whatever, more passes were processed, more accuracy could be reached. The computer program constructed according to this method is able to run on a minicomputer, such as PDP 11/60, while at the same time, it maintains the required accuracy for orbit prediction. So the extended Kalman filter is a convenient and useful means for those tracking stations, where no large computers are available.

本文借用推广的卡尔曼(Kalman)滤波法实时处理几圈单站的激光测距资料来改进卫星的轨道,以达到精密预报此后近期内卫星位置的目的。在建立动力学模型中,计及了地球扁球形的摄动、大气阻力、太阳辐射压的效应以及日月引力摄动。在计算这些摄动过程中,地球重力位对带谐、扇谐和田谐项都展开到了第11次和第11阶;大气密度分布采用简化的“指数模型”;地影假定呈圆柱形;并以旋转的开普勒轨道求日月的地心坐标。在卫星的状态估计过程中应用推广的序列估计算法,借助数值积分方法积分状态向量和协方差矩阵。利用激光卫星LAGEOS的测距模拟资料和真实数据分别对本方法进行了检验。结果表明:应用本方法即使处理单站的少数几圈的观测数据,可相当精确地预报卫星在此后几圈的位置。如果处理更多圈数的数据,则卫星的预报可以达到更高的精度。并且由于按照本方法建立起来的计算程序可以在小型电子计算机,例如PDP11/60上实施,同时保持应有的精度,因此它颇具有实用的价值。

 
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