excitations

The relaxation is due to the interactions with the thermal excitations.

弛豫是由热激发相互作用而产生.

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Therefore, in this thesis Matsubara Green function theory has been used to explore magnon excitations and phonon excitations of two-dimensional Heisenberg ferromagnetic system under magnon-phonon coupling.

因此本文利用松原格林函数理论系统地研究了磁振子&声子耦合下的二维Heisenberg铁磁系统的磁振子激发与声子激发。

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To find how these two types of dipole-dipole interactions affect the soliton excitations, we choose a blue-detuned optical lattice, and an external laser field is imposed into the system to induce the LDDI.

为了详细地说明MDDI和LDDI这两种类型的相互作用对于磁孤子激发的影响，我们选取了蓝失谐光晶格，其中系统中的LDDI由外部激光场诱导产生。

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The seismic performance of field and shoring structure under multi-point excitations at bedrock are analyzed using the generated multi-point artificial waves.

利用生成的多点人工波分析了基岩多点激励下场地和支护结构的抗震性能。

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This paper describes a scheme of haar wavelet encoding MR imaging based on spin echo sequence, the scheme can acquire a single-section 256 × 256 T_2-weighted projection image in 33 s by carefully arranging the haar wavelet encoding selective excitations.

本文介绍了一种基于自旋回波序列的哈尔小波编码磁共振成像的实施方案，该方案通过周密安排哈尔小波激发顺序，可在33秒内获得一幅256×256个像素的T2加权投影像。

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For plane frame structure and three-dimensional frame structure, wave passage excitation can be implemented naturally, and there is no need to solve the classical governing equations for multiple support excitations.

对于二维和三维框架结构的地震响应问题，该方法在各支座处可以自然地引入行波激励，不需要求解经典的多点激励动力学方程组。

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The constant-gain negative velocity feedback, Lyapunov feedback as well as a linear quadratic regulator ( LQR) approach had been used for active vibration control with the beam subjected to impact excitations and/ or thermal loads.

采用常增益速度负反馈控制、Lyapunov反馈控制和基于独立模态的线性二次型调节器（LQR）设计主动控制器，实现了层梁结构脉冲激励和热载荷作用下的振动主动控制。

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The equivalent displacement damping is a function of the gap width between bridges, also the characteristics of earthquake excitations and system.

其中的等效位移阻尼比是伸缩缝间距、结构动力特性和地震荷载特性的函数。

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The Galerkin approach is employed to deduce a two-degree-of-freedom nonlinear system under the combination of the parametric and external excitations from the governing partial differential equations.

采用Galerkin法对偏微分方程进行离散，得到包含外激励和参数激励的二自由度控制方程。

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Several excitations types of synchronous electric machine and the brushless excitation system of 2500 kW High-voltage brushless 3-phase synchronous gene-rator are introduced in this paper.

介绍了同步发电机的几种励磁方式和2500kW高压无刷三相同步发电机的无刷励磁系统。

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A particle passing through the scintillator produces excitations.

粒子通过闪烁体引起激发.

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Results obtained both in laboratory demonstrations and in actual measurements for practical engineering show that vibration suppression by active control is emerging as a powerful technique to improve the performance of structures against earthquakes, wind and other dynamic excitations.

理论和实践表明振动主动控制技术在抑制由于地震、风等外载激励下结构振动方面是十分有效的。

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Nonlinear response of concrete dam containing construction joints to earthquake excitations were carried out with contact model in this paper, in order to obtain the concrete dam's actual displacement and stress status.

本文应用接触模型对具有结构缝的混凝土坝在地震荷载作用下的非线性地震响应进行了研究，以期得到该混凝土坝在地震荷载作用下较合理的位移与应力状态。

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In the paper, a panel excited by either point force load or circle force load is modeled to study its vibration responses. Based on the theoretical model, the responses of a simply supported flat panel under two types of excitations are predicted and analyzed.

建立了平板结构在点力载荷和线力载荷作用下振动响应的理论模型，应用该模型计算出简支平板在两种载荷作用下的振动响应，然后进行比较分析。

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Stark spectroscopy ( electroreflection spectroscopy) technique was applied to investigate the exciton transitions and charge transfer excitations in a Tin phthalocyanine ( SnPc) polycrystalline film.

采用斯塔克（Stark）光谱（电场调制反射光谱）技术研究了酞菁锡（SnPc）多晶薄膜中的激子跃迁和电荷转移。

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As far as the two-dimensional ( 2D) quantum Heisenberg antiferromagnet is concerned, its low-temperature physics is generally accepted to be determined by the spin-wave excitations upon the long-range Neel order. At high temperature, the static magnetic susceptibility shows a Curie-Weiss law.

对于二维反铁磁体，其物理在低温区大家公认是由长程奈尔序上的低能自旋波激发决定，在高温部分其磁化率是遵从于Curie-Weiss定律。

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Equation of motion of LRB structures to multiple excitations is derived, the stochastic equivalent linearization method is used to ( linearize) the equation of motion.

推导了LRB隔震结构多点激励运动方程，并运用随机等价线性化方法以计入铅芯橡胶支座（LRB）的滞回非线性性能。

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A sliding roof system is proposed as a means to reduce dynamic response of buildings to earthquake excitations.

提出了一种可以减弱建筑物地震反应的滑动屋盖系统。

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The result displays that the horizontal steady-sta te vibration is little affected by vertical Coulomb damping parametric excitations.

结果表明，竖向阻尼参激对水平稳态振动的影响不大。

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Dynamic behavior of a curved panel undergoing cylindrical bending under harmonic excitations is investigated.

研究了两边铰支弯曲薄板在分布简谐激振力作用下的柱型弯曲振动.

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At the same time, the behavior of the dam's joint in different earthquake excitations were analyzed, and a little of valuable results were obtained.

与此同时，分析了该大坝的横缝在不同方向地震荷载作用下的动力行为，取得了一些有参考价值的结论。

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The impact noise excitation is discussed time-history inputting models for impact noise excitations are founded.

讨论 轮轨 噪声激扰之一:冲击噪声激扰.

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Semispherical shell is widely adopted in modern engineering structure, and those kinds of structures are always subjected stochastic excitations.

现代工程中广泛地采用半球壳结构，且实际应用中此类结构常要承受随机载荷的作用。

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Based on the results of K8 single layer spherical lattice shells, seismic responses of single layer lattice shells under vertical and horizontal earthquake excitations are obtained.

以K8型单层球面网壳为研究对象，得出了单层网壳在水平地震作用和竖向地震作用下的力学响应特性的一些重要结论。

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According to the Fourier transform relationship exists between the array factor and the element excitations in thinned array, an iterative fast Fourier transform algorithm based on the classic density-tapered array optimization design is presented and the detailed theory of the method is discussed. 3.

根据稀疏阵列中阵列因子与阵元激励之间存在的傅里叶变换关系，在经典密度加权阵列设计方法的基础上，完善了一种基于迭代FFT算法的阵列优化方法，并详细阐述了其原理。

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Exciton Transitions and Charge Transfer Excitations in Polycrystalline Tin Phthalocyanine Film Studied by Stark Spectroscopy

用斯塔克光谱技术研究酞菁锡薄膜中的激子跃迁和电荷转移

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The effects of Bose elementary excitations on the thermal properties of glasses at low temperatures

玻色型元激发对玻璃低温热学性质的影响

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In this paper, the time history analysis method is used to analyze on seismic response of structure subjected to uniform support excitation and multiple support excitations.

时程分析方法可直接求解结构在地震荷载输入下的反应而被广泛的应用。

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A support hyperplane method is presented to find the response set defined for a linear time invariant vibration system under the excitations modeled by some convex sets.

对激励由凸集合建模的线性振动系统提出了响应集的概念，将数学上的微分包含问题简化为求解多自由度振动系统的响应集问题。

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The principal resonance of a second-order stochastic oscillator under combined harmonic and parametric excitations is investigated.

研究了二阶线性系统在谐和与随机噪声联合作用下的主共振响应和稳定性问题.

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