• 如果使用弹性基础,则基础动力放大系数减少98%左右,可避免基础与速汽轮机组产生共振。

    If a spring foundation is used, comparison shows that more than 98% of the power amplification factor will be reduced by the spring elements.

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  • 无限大导热理论瞬态导热过程进行换系数求解

    The heat transfer coefficient is obtained by solution of semi-infinity heat conduction theory.

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  • 两种不同控制刚度主动控制结构地震影响系数进行比较分析。

    Seismic influence coefficients of structures with active variable stiffness (AVS) systems, corresponding to two different control laws, are compared and analyzed.

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  • 利用六个动力系数来刻划联轴器力学行为建立轴承转子齿轮联轴器系统的弯扭振动力学模型

    The dynamic behavior of a half coupling is described by six coefficients, and the vibration model of bearing rotor system with a gear coupling is developed.

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  • 分析了缩、缩径凹摩擦系数、缩径管坯初始管端翘曲向伸长率的影响规律

    In addition, this paper presents how the diameter reducing rate, the die semicone angle, the friction coefficient and the original wall thickness influence the buckling and the axial elongation rate.

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  • 效应系数定义表面几何结构参数纬线波高、纬密和纬线单位长度中的乘积

    Crepe effect coefficient is defined as the product of the surface geometric structural parameters, i. e, amplitude of weft, density of weft, and number of wefts in unit length.

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  • 通过对构件转角-位移方程修正推导了刚接单元线刚度修正系数

    Through revising the equation of rotation-displacement, the revised factor of the line rigidity of beam with semi-rigid connections is derived.

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  • 提出精细积分解析求解系数的以超孔压孔隙比为控制变量的固结微分方程

    A precise time step integration method was proposed to solve the finite strain osmotic consolidation equation with varied coefficients.

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  • 借此制成一种电阻温度系数工作温度较高导电电缆料。

    Thereby a semiconductive material has been developed with positive temperature coefficient of resistivity and with higher operating temperature for cables.

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  • 应用样条解析求解均质粘弹性地基动力柔度系数

    A semi analytical procedure for determining the dynamic flexibility coefficient of the three dimensional viscoelastic non homogeneous foundation is developed.

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  • 矩阵安全系数心处小时,运用二分将控制收敛矩阵尺寸减小进行计算直到满足要求为止。

    When the safety factor of the centroid is the minimum, the dimensions of the matrix lets up the half by dichotomy to precede the calculation until satisfy the request.

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  • 本文首次系统地多种线性问题研究插值系数有限元收敛性,获得了比较完整结果

    For the first time this paper makes a systematic study about superconvergence of interpolated coefficients finite element method for many semilinear problems and obtains rather integrated results.

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  • 响应变量随机缺失时,研究参数变系数模型响应变量均值估计

    We develop imputation estimators of mean of responses for semiparametric varying-coefficient model with response variables missing at random.

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  • 说明规划点法数据整理交直流系统统一优化算法系数矩阵确定

    Interior point method for semidefinite programming data collation ac and DC systems unified reactive power optimization algorithm to determine the coefficient matrix.

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  • 利用系数矩阵极大证明了这类李代数单李代数没有交换子代数

    Using the notion of coefficient matrix and maximal element. We prove that the Lie algebra is semi-simple and it has no abelian two dimensional subalgebra.

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  • 总结前人研究成果基础上完善了解析方法的解释理论机理建立示踪剂测试解析方法模型

    On the basis of the former study results, the theory and mechanism of semi-analytical interpretation were improved, and a semi-analytical mathematical model for tracer test system was developed.

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  • 通过分别移动基底、地表水平面位于基坑高度水平面上三个几何控制点寻找到边坡最危险滑移面并计算出对应的稳定性安全系数

    The slip surface is searched through moving the three geometric control points on the ground surface, the bottom of excavation and the surface at half of the height of the excavation, respectively.

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  • 虽然碳酸盐岩油藏大约世界油气储量但是碳酸盐岩油藏碎屑岩油藏表现出更低采收率系数,。

    While they already contain around half of the world's hydrocarbon reserves, carbonate fields still exhibit lower recovery factors than clastic fields.

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  • 通过实验测定了轴表面横向椭圆裂纹应力强度因子(SIF),计算了光弹裂纹几何及当地应力相对应的无限大体的SIF,从而求得SIF修正系数

    The SIF and its correction factor of the transverse surface semi-elliptic crack of a photoelastic axle are tested and studied with the method of three dimensional photo-elastics.

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  • 提出一种利用据库系统一般结构结构化数据上进行近似查询途径

    An approach to approximate querying of general graph structured semistructured data is proposed based on a relational database system.

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  • 第二研究汽车驱动桥疲劳破坏机理零件疲劳损伤理论程序载荷谱处理技术基础之上给出路面强化系数模型

    In chapter 2, the fatigue mechanism of automobile half shaft is studied; and intensified coefficient model based on fatigue failure theory and programmed load spectrum technology is also provided.

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  • 根据方法相对过阻尼系数能够表示成检波器响应曲线高宽度和检波器自然频率乘积线性函数

    According to the method, the relative overdamping can be expressed in a linear function of the product of the width of half peak of the response curve by the nature frequency of the geophone.

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  • 结果表明电子透射系数随外环两个气泡周长改变均做周期性振荡

    We found that the transmission of electrons oscillates periodically with the change of ring's half length or two bubbles' half circumferences.

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  • 设计一种新型均速管,根据伯努方程连续性方程建立均速管仪表系数的数学模型

    A new half-tube averaging pitot tube is designed, and based on the Bernolli equation and continuity equation, a mathematics model is established.

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  • 导出了天线方向图功率波束宽度快速计算口径天线方向性系数增益简单表达式分析讨论了这些公式应用范围

    The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.

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  • 现今规范中的双向压弯构件稳定验算公式中的弯矩放大系数是套用平面内弯矩放大系数建立有限试验基础上的,一个经验理论设计公式。

    The current biaxial bending design formula always use the moment magnifier factor of in plane bending, which based on finite tests data, it's a semi- theoretical -semi-experience formula.

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  • 探讨刚性连接结构中剪力位移系数弯矩系数、剪力系数和框架剪力系数影响;

    The formulas to calculate the mentioned parameter for semi-rigid frame-shear wall structure are deduced by introducing eduivalent area moment of inertia .

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  • 本文给出正定二次型的若干判别方法正定对应系数矩阵一些相关性质

    The paper gives a number of methods for differentiating half positive definite quadratic form and some relevant properties in respect to half positive definite corresponding coefficient matrix.

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  • 本文给出正定二次型的若干判别方法正定对应系数矩阵一些相关性质

    The paper gives a number of methods for differentiating half positive definite quadratic form and some relevant properties in respect to half positive definite corresponding coefficient matrix.

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