查询词典 excited

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。

From the decay rate constants variation of 4NQO excited triplet state (590 nm) of different concentration, we got the intrinsic lifetime and self-quenching rate constant of 4NQO excited triplet state.

同时，首次报道了4NQO激发三重态动力学行为的pH效应，结果表明，随着pH值的升高，4NQO的自猝灭速率常数一直有规律地增大。

In this new theory system, according to non-inertial tow motion system various multi-linear vector concrete deductive calculus and analyse, it can be determined that after electron and positron collide (combined at shout-range distance reacted by strong force), they form excited state neutrino,then reacted by weak force for a relaxation time becomes un excited state neutrino and release large energy photon or phonon, its mass tends to zero.

新理论体系，按非惯性牵引运动系，各类多线矢的具体演绎矢算分析，可以判定：电子与正电子碰撞(在近程条件强力作用下结合)成激发态中微子后，再在弱力作用下，经一定的弛豫时间，形成非激发态中微子并释放大能量的光子或声子，其质量近乎为零。

The property of the lowest excited triplet states of xanthone in acetonitrile has been investigated by using time-resolved laser flash photolysis at 355nm. The transient absorption spectra and the quenching rate constants of the excited xanthone with several amines have been obtained.

用时间分辨的激光闪光光解的方法在乙腈溶剂中研究了呫吨酮的激发三重态的性质，并得到了呫吨酮激发三重态和胺类、醇类以及酚类反应的瞬态吸收光谱和猝灭速率常数。

In this thesis,the AM1,MNDO,MINDO/3(mainly AM1)and INDO/S-CI semiempirical MO methods were used toinvestigate the excited-state intramolecular protontransfer reactions of salicylic acid derivatives—salicylic acid,methyl salicylate,salicylaldehyde,o-hydroxyaceto-phenone,salicylamide and 3-hydroxy-picolinamide (6 conformers and 2-3 anion species);2-(2'-hydroxy-5' methylphenyl) benzotriazole(4 conformers),2-(2' hydroxyphenyl) benzimidazole (3 conformers and 3anion species),Bis-2,5-(2-benzoxazolyl)hydroquinone(3 conformers),2-(2'-hydroxyphenyl)benzothiazole(2conformers) and 7-azaindole dimer (2 conformers).Theinvestigations were described as follows.Geometry optimization,relative stability andhydrogen bonding energy First,for sylicylic acid derivative molecules,the AM1,MNDO and MINDO/3 methods were used toinvestigate ground-state geometry optimization,energies,relative stabilities and hydrogen-bondingenergies on the five kinds of the molecules(designing 6 conformers and 2-3 anion species).Comparing with experimental data,the optimizedgeometry,the order of stability,the hydrogen-bonding energies and the distances between O-O in O-H..O hydrogen bonds by AM1 method were in agreementwith the experimental data,however,the C-C bondlengths optimized by MNDO and MINDO/3 were longer,C-O and O-H bond lengths were shorter;for C-N bondlengths,the results opitimized by MNDO method werethe same as those by AM1 method,nevertheless the C-Nbond lengths given by MINDO/3 method were muchshorter.For some sylicylic acid derivatives(e.g.methyl salicylate,salicylamide),the order ofstabilities on the conformers given by MNDO andMINDO/3 methods were not in agreement with theexisting conformers deduced by experimental methods,and the hydrogen bonding energies calculated by MNDO.and MINDO/3 methods were smaller.Second,the studyon the other systems found that the optimizedgeometry of the proton-transfered product with INDOmethod could not be obtained,only could theoptimized geometry of reactant be obtained,and thecalculated hydrogen bonding energies were greater.Many results of calculation indicated that the studyon the excited-state intramolecular proton transferreaction system using AM1 method was suitable andreliable.

本论文用AM1、MNDO、MINDO/3（主要是AM1）和INDO/S-CI半经验分子轨道方法对水杨酸衍生物系列——水杨酸、水杨酸甲酯、水杨醛、O-羟基乙酰苯酮、水杨酰胺和3-羟基吡啶酰胺（6种异构体和2-3种阴离子）；2-（2'-羟基-5'-甲基苯基）苯并三〓唑（4种异构体）；2-（2'-羟基苯基）苯并咪唑（3种异构体和3种阴离子）；2，5-二间氮杂氧茚氢醌（3种异构体）；2-（2'-羟基苯基）间〓杂硫茚（2种异构体）和7-〓吲哚二体（2种异构体）的激发态分子内质子转移反应在以下几个方面进行了较系统的理论研究：几何构型优化和相对稳定性及氢键能首先以水杨酸衍生物系列分子为例，用AM1、MNDO和MINDO/3方法考察了5种分子（每种分子设计6种异构体和2-3种阴离子）的基态几何构型优化，能量、相对稳定性和氢键能计算，通过和实验数据进行比较，AM1方法给出的优化几何构型、稳定性次序、氢键能和O—H。。。O氢键的0—0距离与实验数据吻合最好，MNDO和MINDO/3方法优化的C-C键长偏长，C-O键和O-H键长偏短；对于C-N键长，MNDO和AM1优化结果差别不大，而MINDO/3给出了过短的C-N键长，MNDO和MINDO/3方法给出的有些水杨酸衍生物分子（如水杨酸甲酯和水杨酰胺）异构体的稳定性次序和实验上推测的可存在异构体结果不一致，MNDO和MINDO/3方法给出的氢键能偏低，对其他体系的研究发现INDO方法常常不能得到质子转移产物的优化几何构型，只能得到反应物的优化构型，并且估算的氢键能偏高，大量的计算结果表明AM1方法对本论文研究的激发态分子内质子转移反应体系是适宜和可靠的。

Passed by Qinong Zhong, I saw the continuous big mountains in the remote places, I became excited, as last I found the actual mountains, although these are more smaller than Si Chuan or Tibet's mountains, but to me, an experienceless child, especially after some days unromantic trip by bike, the mountains made me excited, the flat cement road surface, rose up along the green mountains, and disappeared in the mountains, so I wanted to know what view is after tramped over the mountain.

过了琼中，远远就望见连绵的&大山&，首先让人兴奋，终于看见一点像样的山了，虽然这与四川或西藏的山根本不在一个层次，但对于没见过世面的孩子，尤其在经历了几天平淡的骑行后，确实有点兴奋，平坦的水泥路面，蜿蜒着青山而上，消失在群山之中，不禁让人浮想翻过这山又有什么。

Experiment shows the colored form of 5-selenazolyl fulgide is unsteady and decayed within several microsecond period, its coloration occurred through the excited singlet state and excited triplet state. The photochromic mechanism is shown as following.

实验结果表明，从开环体到闭环体不仅是经由激发单重态而且还通过激发三重态两种光反应机理，结果如下图所示。5-硒唑俘精酸酐的成色体很不稳定，在几个微秒时间范围内即重新生成开环体。

One neurone of them could be excited by the stimulation of 50μA; six neurones were obviously excited by the stimulation of 100μA.

有先抑制的神经元，抑制程度在一定范围内随刺激强度加深。

It requires nonconventional methodologies and strategies for Quantum chemistry to treat excited states, especially for the excited states that have the same spin multiplicity as the ground state and has no symmetry.

利用量子化学方法计算分子的激发态需要非常规的方法和策略，特别是对那些具有与基态相同的自旋多重度而又没有任何对称性的分子的较高激发态。

By our beast knowledge, the present article is first time to report nanophase oxyfluoride vitroceramics Er(3):FOV to have an effective three-photon infrared quantum cutting excited by visible light and an four-photon infrared quantum cutting excited by near-violet light.

据我们所知该稿件为首次报道Er(3)：FOV纳米相氟氧化物玻璃陶瓷的可见激发的三光子的有效的红外量子剪裁现象和浅紫外激发的四光子红外量子剪裁现象。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。