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加速法
相关语句
  acceleration method
     Modal Acceleration Method for ComputingFrequency Response Function
     频响函数计算的模态加速法
短句来源
     By using the step acceleration method, the text obtains the optimization of design result which is satisfied with the flight request presupposing that it can meet the need in operational and technical parameter.
     在满足总体战术技术指标前提下,通过步长加速法对最小起飞质量目标函数进行优化分析,得到满足飞行要求的优化设计结果,并对设计变量进行了参数敏感性分析。
短句来源
     A Further Approach to Gradient Acceleration Method
     梯度加速法的进一步探讨
短句来源
     Powell optimization is the method by which the solution can be obtained with the Powell's direction acceleration method, when the incoherence function that is established from logging data and calculated values arrives minimum.
     Powell优化算法是利用仪器测井值和理论值建立误差函数(非相关函数),借助Powell方向加速法求出非相关函数达到最小时的解。
短句来源
     Design and Research on Self-adapting Reference Model by Step Acceleration Method
     基于步长加速法的模型参考自适应系统的设计研究
短句来源
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  accelerating method
     A new accelerating method of simultaneous iteration.
     一个并行迭代的加速法
短句来源
     which passes round the time - consuming routine method and the less accurate accelerating method,but makes a full use of a variety of MIL-HDBK -695B and ASTM standards and specifications,and at last籥 satisfactory result is obtained.
     该方法避开了耗时的常规法和低准确度的加速法,集中利用了美国军用手册、ASTM的方法和数据,获得了满意的结果。
短句来源
     Discussed the deviation of the exterior noise measurement proceis from GB1496 (China Standard) due to different accelerations of vehicles. Then Accelerating Method has been put forward to detemine the accelerrating operating modes of vehicles when measuring its exterior noise. According to this method the accelerating proceiS will be in conformity with GB1496 and the noise measurement will have a higher accuracy.
     对汽车车外加速行驶噪声测量过程中国汽车加速性能的差异,使测量过程与GB1496规定产生偏差问题进行讨论,并根据测量实践,提出利用"加速法"进行噪声测量工况的确定,以满足GB1496,提高测试精度。
短句来源
     The complex model is simplified,and is turned to a nonlinear program model by using step accelerating method ond punishment function, the problem is solved.
     通过对函数关系的简化,把复杂多变量模型简化为单变量的问题求解,进而转化为数学规划问题通过使用步长加速法,并且构造罚函数来求解。
短句来源
  “加速法”译为未确定词的双语例句
     Method: The content of ferulaic acid was detected by RP-HPLC in different interval, under 65℃,75℃,85℃ and 95℃ with the classic homoiothermy acceleration.
     方法:采用经典恒温加速法,分别在65℃,75℃, 85 ℃,95℃恒温条件下,在不同间隔时间内用RP-HPLC法测定制剂中阿魏酸含量。
短句来源
     Determination of the Parameter ρ_n for Skew-Symmetrizable Chebyshev Acceleration
     Chebyshev加速法在斜对称化情况下迭代参数ρ_n的确定
短句来源
     Analysis of Interference Factors for Diesel Oxidation Stability with Accelerated Method
     加速法分析柴油氧化安定性的干扰因素
短句来源
     RESULTS:The thermal degradation kinetics of cefminox sodium solution was in conformity with the first-order kinetics,2 kinds of degradation products were detected,the expiration dates of cefminox sodium solution detected by classic isothermal accelerated tests and multiple linear model were 3.70 days and 4.17 days,respectively.
     结果头孢米诺钠水溶液的降解符合一级动力学过程,测得有2种主要降解物,用经典恒温加速法和多元线性模型预测头孢米诺钠水溶液的有效期分别为3.70、4.17d。
短句来源
     Determination of odor stability of paraffin wax by accelerated method
     加速法测定石蜡臭味稳定性
短句来源
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  acceleration method
The random rolling differential equation was solved in the time domain by applying the harmonic acceleration method and by synthetically considering the instantaneous state of ships and the narrowband wave energy spectrum.
      
Stability of average acceleration method for structures with nonlinear damping
      
Both the Fourier-acceleration method and the fluctuation-dissipation theorem are used to improve efficiency of the algorithm.
      
High speed jet formation by impact acceleration method
      
An improved convergence acceleration method for the strip grating cylindrical surface problem
      
更多          
  accelerating method
The accelerating method uses n iterations of the underlying optimization algorithm.
      


In this treatise the peculiarity of the design of the mechanism parametersis presented on the basis of analysis of the differential equation of motion ofthe fuze mechanism. This peculiarity shows that the objective function is anonlinear nondifferentiable function. This function possesses the discontinuouspoint of the first kind and the constraint conditions are generally nonlinear.This treatise presents the application of pattern search method to choosing theoptimum project and also presents a ALGOL and FORTRAN...

In this treatise the peculiarity of the design of the mechanism parametersis presented on the basis of analysis of the differential equation of motion ofthe fuze mechanism. This peculiarity shows that the objective function is anonlinear nondifferentiable function. This function possesses the discontinuouspoint of the first kind and the constraint conditions are generally nonlinear.This treatise presents the application of pattern search method to choosing theoptimum project and also presents a ALGOL and FORTRAN program.

本文通过对引信机构运动微分方程的分析,得出机构参量设计的特点是评价函数为多个设计变量的非线性不可微函数,并具有第一类间断点,而约束条件一般为非线性约束。提出应用步长加速法选择最佳方案并给出ALGOL和FORTRAN语言程序。

In this paper, a technique for p+-n1-n2-n44 multilayer vapor phase epitaxial growth in a dual-chamber rectangular reactor is presented.Pure Zn and Sn are adopted as the doponts of P-type and N-type, respectively.With this technique the storage effect of impurity can be avoided and a sharp profile of the carrier concentration for the multilayer structure has been obtained. Zn in p+-epilayer exhibits only a slight compensation to the donor in n1 layer. When the concentration of n1 layer decreases an order of magnitude,...

In this paper, a technique for p+-n1-n2-n44 multilayer vapor phase epitaxial growth in a dual-chamber rectangular reactor is presented.Pure Zn and Sn are adopted as the doponts of P-type and N-type, respectively.With this technique the storage effect of impurity can be avoided and a sharp profile of the carrier concentration for the multilayer structure has been obtained. Zn in p+-epilayer exhibits only a slight compensation to the donor in n1 layer. When the concentration of n1 layer decreases an order of magnitude, the transient region between n1 and n2 is 0.05-0.1μm, and that between n2 and n* is about 0.5μm. It has been investigated that the lateral uniformity of the epilayer is influnced by the declination of the substrate holder α and the gas stream over the substrate. Experiments show that when α= 22° the lateral uniformity of the epilayer is significantly improved by partially accelarating the gas stream. For the multilayer material of the area of 4.5cm2, the maximal lateral deviation is ±4.6% with n2 layer thickness of 5-7μm, and ±17% for n1 layer of submicrometer; the maximal lateral deviation of n1 layer carrier concentration is ±5.1%.

本文报导一种采用双室矩形反应管生长p~+-n_1-n_2-n~(?)多层汽相外延技术.Zn和Sn分别为P型和N型掺杂剂.本技术能避免杂质存贮效应,使多层外延的浓度分布陡峭,p~+层中Zn对n_1层施主补偿小,n_1浓度下降一个数量级时n_1-n_2之间的过渡区为0.05~0.l微米,n_2-n~(?)之间的过渡区约0.5微米.本工作还研究了不同衬托倾斜角α和反应气流速度对外廷层横向均匀性的影响.实验证明,当α=22°时,运用局部气流加速法使外延层横向均匀性得到了明显改善.对于面积为4.5平方厘米的多层材料,5~7微米厚的n_2层,其横向厚度的最大偏差为±4.6%;亚微米厚的n_1层,其横向厚度是最大偏差为±17%;n_1层横向浓度的最大偏差为±5.1%.实验证明,用本技术生长的p~+-n_1-n_2-n~(?)多层材料,在保证有较高的输出效率的前提下,提高了器件的可靠性.材料性能优于传统的液相外延技术.制备IMPATT器件的典型结果为:在8千兆赫下最高的连续波输出功率达2.93瓦,效率20.5%、与Pt H-L结构的器件相比.工作寿命显然较长.文中还对Zn的掺杂行为进行了初步的讨论.

For f(x)∈C2p+1[0,1],Euler-Maclaurin Summation formular can be written as:(hk=1/2k)In view of this,men calculate columns in Romberg integrationwhere γm=4m,which forms γ-array(4,42,43,...).For f(x)∈C2p+1(0,1],we establish the formulaThe first part of the right side of (3),(5) is the error caused by the singularity of f(x) at x = 0 If we put α=2β+1 for(n+1) times in γ-array,this error can be eliminated.Ten instances with calculated results are selected for illustration.

对于f(x)∈C~(2p+1)[0,1],尤拉-麦克洛林求和公式可写为:(h_k=1/2~k) (?)(1)对此,在逐次减半加速法中计算序列: T_(mi)=(γ_mT_(m-1,i+1)-T_(m-1),:)/(γ_m-1)(m=1,2,3,……) (2)其中γ_m=4~m,形成γ序列(4,4~2,4~3,……)。 对于f(x)∈C~(2p+1)(0,1],我们建立公式: (?)(3)其中(?) (4)对于f(x)=x~βln~nx(β>-1,n=0,1,2,…)则有(?) (5)(3),(5)右边的前半部是由于f(x)在x=0上的奇异性而引起的误差。如将α=2~(β+1)以(n+1)次加入γ序列,就可怕除此项误差。选出十个计算实例作为说明。

 
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