导出了克尔非线性梯度折射率光纤轴对称模传播常数的解析公式。
The analytic formulas of propagation constants of axisymmetric modes in a Kerr law nonlinear graded index optical fiber are derived.
许多高功率微波源产生的微波模式都是圆波导轴对称模，因此研究轴对称模式的天线辐射技术具有重要意义。
It is important to study the antenna that can directly radiate cylindrically symmetric modes, which are generated by many high power microwave sources.
过渡波导用于改善入射基模与出射偶对称模之间的场分布匹配，有效地提高了功率耦合效率，降低了分支耦合损耗。
The transitional guide is used to improve the mode field matching between both the waves supported by the incident and output waveguides.
讨论局部对称空间中具有平行平均曲率向量的子流形，得到其关于第二基本形式模长平方的积分不等式的相关定理。
This paper discusses submanifolds with parallel mean curvature vector in local symmetric Spaces and obtains integral invariants about the square of modulus-length.
增益材料放置的对称性导致奇数阶纵模的损耗，从而增加了微激光器的调谐范围。
Certain symmetry in the allocation of gain material leads to depletion of odd longitudinal modes that, in turn, increases the tunability range of the microlaser.
如果分模面不能在单一平面，利用设计的对称性来减小侧向推力不失为一种好方法。
If the parting line cannot be on a single plane, then it is good practice to use symmetry of the design to minimize the side thrust forces.
用动力系统的方法自动生成具有模群对称的图形。
Symmetric patterns with the extended modular group are generated by dynamical systems.
本文利用微扰法，导出了克尔型非线性对称平板光波导t E模传播常数的近似计算公式。
A perturbation method has been developed to derive the approximate computing formulae of propagation constants for te modes on Kerr-type nonlinear symmetric slab optical waveguides.
应用分式化方法刻画了唯一分解环上对称矩阵模的保持伴随函数的线性变换的形式。
By the fractional method, characterized the linear preservers of the adjoint function on the symmetric matrix module.
利用缺陷模的有关参量得到了非对称约束的光子晶体缺陷的透射特性。
The transmission characteristics of the symmetrically confined photonic crystal PC defects had been detailedly investigated.
小批量、低精度和大尺寸的对称式线材弯曲件，采用简易绕弯模弯曲能提高经济效益。
The symmetric wire bent elements of small-production and low-accuracy used the simplerevolving bending die to improve economical efficiency.
本文推导了计算非线性薄膜对称平板光波导te模截止值的精确公式。
An accurate formula is derived for cutoff values of te modes in the symmetric slab optical waveguide with a nonlinear thin film.
散热器加水口盖壳缩径模设计难点是对称凸耳成形及内弯后脱取工件困难。
The difficulty in designing the necking die for water_adding entry lid shell of radiator was the stripping of the part after the forming and in_bending of symmetrical protruding ear.
反对称耦合解之一为旋转模。
One of the asymmetry coupling solutions is the rotation mode.
采用选择区域生长、量子阱混杂和非对称双波导技术制作了电吸收调制器与半导体光放大器和双波导模斑转换器的单片集成器件。
On the basis of the study of the single circular groove guide and symmetric double circular groove guide, a new structure, asymmetric double circular groove guide, has been put forward.
由于引入四波混频耦合项，模相互作用的效应对次级模的影响是对称的，均使次级模受到增益抑制。
Due to the coupling term of the four-wave mixing, the mode interaction has a symmetric effect on the submodes, inducing the gain suppression on them.
本文给出了一种研究圆柱正交异性扁薄球壳非线性轴对称自由振动的新的时间模方法。
A new time-mode approach to nonlinear axisymmetric free vibrations of cylindrically orthotropic thin shallow spherical shells is presented in this paper.
对于具有对称性的线天线或其阵列，不论激励电压如何，均可采用广义奇偶模展开。
In case of symmetrical geometry of wire antennas or arrays with any voltage excitation, generalized even-odd mode expansion method can be used.
对于轴对称任意径向分层的完全非均匀介质，建立了求解静场问题数值模格林函数的理论及高效计算方法；
The theory and high efficient algorithm is set up to obtain the numerical mode Greens function for static steady field problem in arbitrary cylindrical layered media.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型，能快速准确的识别振荡中发生的不对称故障。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
采用矢量有限元方法计算了任意轴对称谐振腔高阶模的本征频率。
Eigenfrequencies of high order modes in the axial-symmetric cavities are computed with a vector finite element method.
本文讨论了非线性对称平板波导中的TE波的偶模及奇模的传输问题。
The transmission problems of an even mode and an odd mode of TE waves in symmetric slab waveguides are considered.
本文提出了一种计算方形对称传输线TE模的各模式的截止波数，以及根据各模式的截止波数计算各模式的色散曲线的方法。
This paper puts forward a computation method on cut-frequency of all TE models of square symmetry wire by which chromatic dispersion curves can be drawn.
本文对一类非线性抛物型方程提出对称修正有限体积元方法，给出能量模最优阶误差估计，并证明了对称修正有限体积元方法的解与一般有限体积元方法的解之差是一个更高阶项。
In this paper, we present a kind of symmetric modified finite volume element method for nonlinear parabolic problems, and give the optimal order energy norm error estimates for full discrete schemes.
给出了各晶系晶体一般声学模及高对称方向纯模的散射张量转动修正的确切形式。
The exact rotational correction of the scattering tensor related to general acoustic modes and pure modes in the higher symmetry directions, for different crystal systems, is presented.
文章利用对称性，采用左右合模工艺，提高材料利用率。
The technological design makes use of symmetry and adopts the two mould process, which increases material yield ratio.
这种对偶变换的对称性不是超弦作用量的对称性，它是解的模空间的对称性。
The symmetry of the twisted dual is the symmetry of the moduli space.
采用大变形刚塑性有限元法模拟超塑性材料轴对称锥形模约束胀形过程。
The constrained superplastic bulging process is investigated by a large rigid-plastic finite element method.
计算了脊的尺寸变化时的截止波长和单模带宽，给出了主模场结构图以及变形对截止波长和单模带宽影响的关系曲线，并分析了传输特性随对称脊波导结构尺寸变化的情况。
It calculates the cutoff wavelength and single-mode bandwidth at the change of the ridge dimensions, gives the dominant mode field pattern and the corresponding curve of the deformation vs.
讨论了单模光纤的偏振模色散PMD，包括PMD与单模光纤的几何尺寸及应力的非圆对称的关系；模间耦合的影响。
The PMD in singlemode fiber, including the relationships between PMD and the circular asymmetries of geometry and stress in fiber, the influence of mode coupling on PMD, are discussed.
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