查询词典 completely continuous linear operator

The vibrational frequency and the mean number of phonons of surface polaron are derived by using improved linear combination operator and unitary transformation method.

采用Tokuda改进的线性组合算符和幺正变换方法导出了表面极化子的振动频率和声子平均数，讨论了多原子晶体中强耦合表面极化子的振动频率和声子平均数与拉格朗日乘子u和电子—声子耦合参数α的关系。

Russell([17]) has showed that, a compact perturbation, generated from unitary operator groups in infinite-dimensional linear Hilbert spaces, is unable to make the perturbed semigroup exponentially stable.

Russell([17])曾指出，无限维Hilbert空间中的酉算子群对生成的紧扰动不能使被扰动半群具有指数稳定性。

Considering interaction between phonons and electron spin and using unitary transformation and linear combination operator method, studied is influence of electron spin on energy magnetic field effect of weak-coupling 2-D spin magnetopolaron in SiC.

在考虑声子之间相互作用和电子自旋的情况下，应用么正变换和线性组合算符法研究了电子自旋对SiC半导体弱耦合二维自旋磁极化子能量磁场效应的影响。

The first excitation energy and the mean number of the weak-coupling magnetopolarons in the polyatomic semi-infinite polar crystals were studied by using a linear-combination operator and unitary transformation methods.

采用线性组合算符和么正变换，研究磁场中多原子半无限极性晶体中电子和光学声子弱耦合相互作用所产生的极化子的第一激发态能量及平均声子数。

The properties of bound magnetopolaron with strong electron-LO phonon coupling were studied using a linear combination operator and a unitary transformation method in an asymmetry quantum dot.

采用线性组合算符和幺正变换方法，研究了非对称量子点中电子和体纵光学声子强耦合下束缚磁极化子的性质。

The influence of the electric field on the properties of the bound magnetopolaron in an infinite-depth GaAs semiconductor quantum well is investigated using the linear-combination operator and the unitary transformation method. The relationships between the polaron's ground state energy and the Coulomb bound potential, electric field, magnetic field, and well-width are derived and discussed.

研究了在外加电场作用下无限深GaAs半导体量子阱中束缚磁极化子的性质，采用线性组合算符及幺正变换方法导出了量子阱中弱耦合束缚磁极化子的基态能量与阱宽、电场强度、磁感应强度、库仑束缚势的变化关系，同时讨论了振动频率和库仑束缚势、外场之间的变化关系。

The study on the mean number of phonons of the strong-coupling bondage polarons in magnetic field;2. The first excitation energy and the mean number of phonon of the strong-coupling magetopolarons in the polyatomic semi-infinite polar crystals were studied through a linear-combination operator and unitary transformation.

采用线性组合算符和幺正变换，利用变分法计算了多原子半无限极性晶体中由电子和光学声子强耦合相互作用所产生的磁极化子的第一激发能量及平均声子数，并通过适当的数值计算图示了它们与磁场的关系。

The variational relations of the first internal excited state energy,the excitation energy and the frequency of transition spectral line between the first internal excited state and the ground state of the electron which is strongly coupled with phonon in an asymmetry quantum dot with the transverse and longituainal effective confinement length of quantum dot and the electron-phonon coupling strength were studied by using a linear combination operator and the unitary transformation methods.

采用线性组合算符和幺正变换方法研究非对称量子点中与声子强耦合的电子的第一内部激发态能量、激发能量和第一内部激发态到基态的跃迁谱线频率随量子点的横向和纵向有效受限长度，电子-声子耦合强度的变化关系。

The influences of the external magnetic field on the properties of the excited state of the polaron in a parabolic quantum dot are studied by using the linear combination operator and the unitary transformation method, the relation of the first internal excited state energy E1, excited energy △E and the resonance frequency ω of both the strong-and weak-coupling polaron with the effective confinement length l0 of the quantum dot, the electron-phonon coupling strength α and external magnetic field B are derived.

采用线性组合算符和幺正变换方法研究了外场对抛物量子点中极化子的激发态性质的影响，导出了强、弱耦合情况下极化子的第一内部激发态能量E1、激发能量△E、共振频率ω与量子点的有效受限长度l0、电子－声子耦合强度α以及外场B的关系。

The monitoring images were opened and closed using a circle structural element in morphological in the algorithm, and their edges were detected with Canny operator. With the transform analysis of the edges images, the linear characteristics of the edges of the empty-trains-images were outstood.

运用圆形结构元素对监控图像进行形态学的先开启、后闭合的操作，用Canny边缘检测算子来检测图像的边缘，并对边缘的图像进行变换分析，突出了空列车图像边缘的直线性质。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。