查询词典 resonance state

A invariable -angle control circuit of parallel resonance converter which can get high precise control of inverter operating state is designed. Using the technique of phase-lock loop, the circuit implements automatic tracking to inverter operating frequency and constant control of capacitive power factor angle.

论文设计了能在频率自动跟踪的基础上实现高精度的逆变器运行状态控制的并联型逆变器定角控制电路，该电路采用锁相环技术，实现了逆变器工作频率的自动跟踪和容性功率因数角恒定控制。

According to the various feature of present parallel resonance converter's control technique, the control circuit is analyzed profoundly, and the control of converter function state is mainly solved.

本论文针对并联型逆变器现有控制技术的种种问题，对其控制电路进行了较为深入的研究，重点解决了逆变器运行状态的控制问题。

In chapter two, the basic principles of REMPI technique are introduced including the resonance enhanced effect, the selection rule, the mechanism of photoionization and photodissociation, REMPI rate equation and the property of Rydberg state.

第二章介绍了REMPI技术的基本原理，包括多光子共振跃迁的选择定则、电子态的光解离机理、描述REMPI过程的速率方程和分子Rydberg态的性质。

Pyronine B adheres to on the surface of CdS and prevents CdS aggregating, which leads to the decrease of fluorescence quantum yield of CdS. Fluorescence resonance energy transfer happens from CdS to Rhodamine B, Butyl rhodamine B and Rhodamine 6G, respectively. There is a higher FRET efficiency between CdS and Neutral red with the value being 0.282. Moreover, coupling reaction between -NH_2 of Neutral red and -COOH of CdS -TGA leads to red shift of CdS fluorescence spectrum. The reaction also occurs between Safranine T and CdS. At the same time, the Fluorescence of ST is quenched by forming ST -CdS ground state complex. Chapter 6, CdS QDs modified by chitosan and polyethyleneimine can be quenched by Cu~(2+). According to the experimental result, we develop the novel sensor for Cu~(2+).

研究结果，吡啰红与CdS之间作用形式是染料聚集在CdS的表面使得CdS不易聚集，但同时也降低了CdS的发光的量子效率；罗丹明B、罗丹明6G、丁基罗丹明B均与CdS之间存在能量转移，位阻效应使得能量转移效率最高的BRhB的相对荧光强度增大最小；中性红与CdS的能量转移效率更高，同时推测可能使CdS-TGA上的-COOH与部分NR的-NH_2发生偶联导致粒子变大而发生荧光光谱的红移；番红花红与CdS是相互荧光猝灭，可能是ST的-NH_2与CdS-TGA上的-COOH发生偶联使得纳米粒子变大以及二者形成基态复合物的共同作用的影响。

It will be in resonance with this state that you are creating it from.

它将与你创造它的这个状态共振。

During the testing process, the circuit use the on-off power supply's pull and push structure as prototype, gaining a additional LC in series resonance circuit, which is also a opposite sharp structure. In the same frequency,and in the work state of work voltage, receiving even more high efficiency and output power.

该电路在实验过程中以开关电源推挽式结构为原型，改进得到一个附加了LC串联谐振回路的反激式结构，在同等工作频率、工作电压的状态下，得到了比推挽式结构更高的效率和输出功率。

This paper also offers an approximate solution of the resonance curve for stationary state vibration of the single-degree-of-freedom system.

通过对单自由度隔震体系的试验分析，给出了在不同扰力水平下隔震体系稳态振动的共振曲线近似计算公式。

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; Wuhan Institute of Physics; Chinese Academy of Sciences; Wuhan 430071; Polymer Physics Laboratory Changchun Institute of Applied Chemis

中国科学院武汉物理研究所波谱与原子分子物理国家重点实验室；中国科学院长春应用化学研究所高分子物理开放实验室

For a kind of nonlinear dynamic absorber of blade out of plane, the combination resonance is studied in Chapter 6 by using the method of multiple scales. The approximate steady state solution of the first order is derived first Then, the stability and bifurcation properties of the system response are investigated.

我们针对一种桨叶挥舞方向的非线性动力吸振摆，利用多尺度法考察了它发生组合共振的情形，给出了系统响应的一阶近似稳态解，并且详细分析了系统响应的稳定性和分叉特性。

Characterization of cotton fiber using solid-state ~(13)C-CP/MAS NMR spectroscopy shows that the crystallinity after MHT is lower than the original sample,but the cotton after MHT has a higher lateral orientation index,which has a good definition in C2,3,5 resonance region.~(13)C-CP/MAS NMR spectroscopy and X-ray diffraction reveal that cellulose I_βis the main cellulose in cotton,and microwave change the allomorphs content.

通过核磁共振碳谱表征分析可知，微波处理之后的结晶度要小于原样，但是由于微波处理之后的棉纤维有相当高的侧向有序指数，其在C2，3，5共振区域有更好的清晰度。X衍射和核磁共振均表明棉纤维是以纤维素I_β为主，微波处理改变了纤维素的晶型，晶型含量I_α和I_β均降低，但是比例基本保持不变，微波处理之后向次晶转化。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。