查询词典 linear

This article expatiated the basic frame and ecumenic principle and introduced a micro-computer control system of the hybrid linear step motor, it based the characteristics and need of the control of the linear step motor, we chose the special motor control chip DSP TMS320F2407 to realize a open loop control and SPWM control .

本文阐述了混合式直线步进电动机基本结构和一般原理，介绍了一种混合式直线步进电动机微机控制系统，该系统根据混合式直线步进电机的特点和控制要求，采用电机专用控制DSP芯片TMS320LF2407进行开环和SPWM控制。

Fruiting pedicels ascending to divaricate, glandular or eglandular, lowermost 1-2.5 cm. Sepals purple, linear to linear-oblong, 9-12 × 2-3 mm, glabrous, pubescent, or glandular, white margined.

到极叉开，具腺或上升的果梗，最下萼片紫色1-2.5 厘米，线形到线形长圆形， 9-12 * 2-3 毫米，无毛，短柔毛，或具腺，白色的边缘。

They are active ingredients of an animate geometry that embraces the linear and non-linear.Both Cartesian and post Einsteinian geometry are encompassed by it.

他们是动态几何学的重要组成，这种几何学同时包含线型和非线性概念，超越了传统笛卡尔和后爱因斯坦几何的界限。

Asar esult of the development of the photon-cathode microwave electron gun and thep rogress of linear accelerator technologies, of linear accelerator driven coherent harmonic generation FELs have been proposed.

由于光阴极微波电子枪的发展和直线加速器技术的进步，目前，已开始有直线加速器驱动的高增益相干谐波自由电子激光的建议。

Bulb covered with a tunic. Leaves sessile, very rarely narrowed into a petiole, with a closed leaf sheath at base, linear, linear-lanceolate, or lorate to orbicular-ovate, cross section flat, angled, or semiterete to terete, fistulose or solid.

叶无柄，极少缩小到一叶柄，具一关闭的叶鞘在基部，线形，线状披针形，花葶顶生或侧生，具鞘或裸露。

There were significant positive linear correlation between macular volume and central foveal thickness, and negative linear correlation between macular volume and age.

黄斑容积与中心小凹视网膜厚度有正的直线相关性，与年龄有负的直线相关性。

Inflorescences terminal, very crowded and forming dense headlike cluster; bracts linear to oblong-linear, 0.2-2 cm, short pubescent, adaxially with intermixed short bristles.

Pedicel不到0.8毫米，拉长到5毫米，在果期下垂，坚固，稀少短具糙硬毛。

Electron donating substituent CH〓, OCH〓 and 4, 5-benzo make λ〓 red shift, electron with -drawing substituent F, Cl and CF〓 make λ〓 hypsochromic shift; b The W〓 is bigger than relative symmetrical carbocyanines, and the ratio of 0-1＇ and 0-0＇ transition intensity increase with the increase of σ〓; c The absorption and the fluorescence spectra are mirror image, and the λ〓 have a good linear relationship; d The Stokes shift △λ〓 and the Hammett σ〓 constant have a good linear relationship.

研究了染料的光物理性质，①苯环上取代基影响染料的λ〓和摩尔消光系数，相对于H，给电子取代基CH〓、OCH〓、4，5-benzo使λ〓红移，摩尔消光系数减小，吸电子取代基F、Cl、CF〓使λ〓蓝移，摩尔消光系数减小；②化合物吸收峰的半峰宽较相应的对称染料的大，且振动肩部与最大吸收峰的强度比随σ〓增大而增大；③吸收光谱与荧光光谱呈镜像关系，且λ〓与λ〓呈良好的线性关系；④化合物的Stokes位移△λ〓与取代基的Hammett σ〓常数呈线性关系。

On the basis of the theoretic analysis, this paper regards to the swatch of the listed corporate of our country in Shanghai Stock Exchange from 2002 to 2004, and sets up the model by linear regression and non-linear regression to analysis the listed company performance index sign and the financing structure, and carries through supposing examination, draws the conclusions:(1) The creditor's rights takes on the characteristic of a soft control and infirmness in the Chinese listed company governance, without bringing into play an obligatory function, the liability financing exists the best financing zone.

在理论分析的基础上，本文以2002―2004年度我国沪市上市公司为样本展开实证研究，采用线性回归和非线性回归、一元回归和多元回归等多种方法建立模型，进行上市公司绩效指标与融资结构的回归分析，并进行假设检验，得出如下结论：(1)债权在中国上市公司治理中表现出软约束和弱化的特征，没有发挥出应有的作用，债权融资存在最优融资区间。

With the guide of non-linear program theory, by using interpolative steps and inexact line search, an improved conjugate gradient method was found, by which the training rate of BP networks increases by tens or hundreds of times. Moreover, the improved method is effective to solve non-linear equations for which Newton's method does not converge owing to the problems of the quadratic derivative and inverse matrix.

通过大量的数值模拟试验发现，在非线性规划理论的指导下采用间插步骤和不精确的一维搜索技术改进的共轭梯度法，是基于梯度和共轭方向的连续搜索算法中最有效的算法，这种算法使BP网络的训练速度提高几十到几百倍，使BP网络的实际应用效果大为改善；而且这种算法对于用牛顿法由于求二阶导数和求逆矩阵等问题难于收敛的非线性方程组的求解也是很有效的。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。