查询词典 excitation energy

And it was found that the effect of strengthening laser energy is similar to that of prolonging the excitation time,and the photochromism process of MR strongly depends on steric hindrance around azobenzene molecule.

偶氮材料的光致变色效应是由偶氮生色团通过光物理化学过程发生顺反异构引起的，所以近年来有大量研究集中在偶氮生色团的顺反异构过程的研究上[10～13]。

The exact energy flow pattern on the axis of a circular disk by transient excitation is presented.

摘要本文给出了在瞬态均匀电流分布激励下，圆盘轴线上能量衰减的精确解。

The calculated results show that the total differential cross section is the general rule and characteristics of collision between an atom and a diatomic molecule, the phenomenon of the scattering oscillation at large angles is more evident along with increase of the incident energy for low-lying rotational excitation state-to-state differential cross sections in He-BH collision system.

计算结果表明：He-BH碰撞体系的总微分截面具有原子与双原子分子散射的一般规律和特征；随着入射能量的增加，低转动激发态-态微分截面在大角区的散射振荡现象会更加明显。

The influences of the isotope helium atoms on the PCSs are discussed in detail. The results show that the excitation PCSs converge faster than the elastic PCSs for the given collision energy and system.

结果表明：对确定的碰撞体系和给定的碰撞能量，激发分波截面比弹性分波截面收敛快。

The removal pathways are: fist, high-energy electrons undergo an inelastic collision with target molecule, and transfers all or part of its kinetic energy to molecule. Inelastic collisions result in a charge to the target molecule such as ionization, dissociation or excitation.

其可能的途经是：首先，高能电子经过与目标分子发生非弹性碰撞，将能量全部或部分传递给分子，使其裂解，激化等；接着，上述被高能电子裂解、激化的分子在臭氧和氧等离子的作用下，被氧化成CO2、CO和H2O。

This paper presents natural vibration experiment and sine excitation experiment of the frame with different energy dissipation braces （the little character brace or the unidirectional diagonal brace or the little- character-toggle-brace）and compared their capability of energy dissipation.

介绍了空框架以及附加单向斜撑、小八字撑以及小八字曲拐撑的4种结构的自由振动试验以及正弦稳态激振试验，比较了其消能能力。

To conduct such research a new experimental apparatus was established.With this setup the two-photon excitation spectra of Barium and one-photonexcitation spectra of Strontium Rydberg atoms were recorded and identified.The Stark spectra of Strontium atoms showed the "l-mixing" and "n-mixing"features. By changing laser wavelength and external electric field strengthsimultaneously, the scaled-energy spectra of Strontium 〓 Rydberg atomsat constant scaled-energy ε=-3.00,-2.50 and -1.88 were recorded for thefirst time. The experimental spectra were Fourier transformed and yielded therecurrence spectra.

主要工作包括：建立了一套用于外电场原子光谱研究的原子束实验装置；获得了Ba原子的双光子、Sr原子的单光子零场激发谱，并对各谱线进行了标识；进行了Sr原子电场Stark效应研究，观察到了低场时能级角量子数"l"混合区及高场时主量子数"n"混合区的存在；首次获得了Sr原子在标度能量ε=-3.00、-2.50及-1.88时〓高Rydberg态电场标度能谱及傅立叶变换后的电子回归谱。

In order to know irradiant dynamic process we must have excitation crosssection of electron collision with molecule. Incident electron energy is inintermediate range. At low energy, there are several good methods thatcalculate electron collision with molecule for example Variation, R-matrix.

此时入射电子的能量已经达到中能，在低能范围内的电子与分子散射有许多好的方法如变分法、R-矩阵方法，在高能范围内利用Born近似等方法也能得到满意的结果，在中等能量范围的电子与分子碰撞则没有相应的成熟的方法，使用比较多的是密耦(Closing-Couple)方法，这种方法将相互作用势分为静态势、交换势、极化势，在耦合态的选取上比较自由，可以根据实际的问题及分子的特性选取耦合作用比较强的通道，这样既能保证精度又能减少计算量。

Calculations show that:nonreaction is the major process at low collision energy;vibrational excitation facilitates reaction;the inelastic nonreactive cross section is about three times larger than reaction cross section under 10-4eV collision energy.

计算结果表明：在低碰撞能下，散射主要以非反应过程为主；振动激发有利于反应的进行；在小于10-4eV碰撞能下，非反应非弹性散射截面和反应截面的比值约为3。

Compared to figleaf gourd, cucumber and sponge gourd showed higher net CO_2 assimilation, actual quantum yield of PSII electron transport Φ_(PSII, photochemical quenching coefficient, the efficiency of excitation capture by open PSII centers, rate of energy dissipation via light-independent thermal processes and fluorescence J_(f,D, energy flux via linear electron transport J_(PSII and electron flux for photosynthetic carbon reduction all the time during the measuring day.

黄瓜与丝瓜在净二氧化碳同化速率、光系统Ⅱ光化学量子效率Φ_(PSⅡ、光化学猝灭系数、开放的光系统Ⅱ中心激发能捕获效率、不依赖于光的热能与荧光耗散光能J_(f，D、PSⅡ总的光合电子流量J_(PSⅡ及用于光合碳还原的电子流量等参数上均表现出比黑籽南瓜更高的数值。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。