查询词典 crossing

Here, it is well-known that a photoexcited ketone undergoes an intersystem crossing to a triplet state and then abstracts a hydrogen atom from an organic molecule.

在这里，它是人所共知的一个photoexcited酮经历了一间通道的一个三重态，然后摘要一氢原子由一个有机分子。

It is concluded that intersystem crossing to produce the localized triplet state is an important pathway of intramolecular exciplex deactivation besides radiative and nonradiative decay to the ground state.

发现形成的激基复合物除了通过辐射和非辐射衰变回到基态外，通过系间穿越形成蒽的激发三重态是淬灭激基复合物的另一个重要途径。

It is possible that magnetic field suppresses the phosphorescence quenching of triplet oxygen molecules and/or promotes the efficiency of S-T intersystem crossing through Tl〓.

可能是磁场具有一定抑氧作用，同时，磁场有可能通过Tl〓间接与胶束中激发态的N分子作用，提高N分子的S-T系间跨越效率。

Next,experimental results could be explained bya five-level model including either intersystem crossing or a process of ionizationand subsequently germinate recombination.

再次，利用一同时包含系际跃迁及电离—复合机制的五能级模型对实验结果进行了解释。

The results of DPBMN in n-hexane solution show that there are two non-radiative processes occurring in the local excited state. The decay time constants of ~4 ps and ~ 220 ps are due to vibration relaxation and intersystem crossing processes respectively.

实验结果显示DPBMN分子在非极性溶剂中的区域性激发态(local excited state，LE state)有两个非辐射缓解的过程发生，首先为发生在LE能阶的振动缓解(~ 4 ps)，之后为系统内转换的过程(~ 220 ps)。

After the excitation of YAG laser, 1、2、 4 were excited to their excited singlet states, then produced excited triplet states by intersystem crossing process, finally returned to their ground states.

在光敏剂1、2激发三重态与一系列链式缺电子烯烃之间的猝灭反应过程中，产生一具有电荷转移性质的激基复合物。

CIDNP results suggest that it is due to the formation of a substrate/sensitizer/aromatic hydrocarbon triplex which alters the reaction potential and facilitates intersystem crossing.

我们而且提出以CIDNP作为证明triplex中间体存在的一种实验手段，可通过triplex改变反应途径。这是在光诱导电子转移反应机理研究中一个有重要意义的创新性的研究成果。

In the reaction of VS+ with CO2, we suggest that, at low energies, the reaction proceeds along the A' surface and then makes an intersystem crossing to the A surface and yields the ground state product VO+3(-, which may explain the small VO+ cross-section at low energies observed in the experiment.

在VS+和CO2的反应中，我们提出在低能区反应沿A'势能面进行然后和A势能面发生交叉产生基态产物VO+3(-，这也解释了为什么实验上VO+的反应截面很小。

In Chapter 5, photo-induced absorption is used to study the intersystem crossing from singlet to triplet states of two polyfluorenes after doped with Ir-complex. It is found that the triplet exciton lifetime of PFs is reduced by the dopants. But instead of decreasing, the population density of PF triplet exciton increases by almost one order of magnitude. The finding shows that the ISC rate can increase over 100 times due to the spin-orbital interaction with the Ir ions.

第五章以光诱发吸收光谱技术研究两种聚芴高分子掺杂绿光铱错合物后，聚芴的单重态到三重态的内部系统转换效率的改变；研究发现在掺杂后，聚芴的三重态生命期减短，但出乎意料的是其三重态的态密度并没有随之降低反而有一个数量级的增加，其原因为单重态到三重态的内部系统转换受铱错合物的影响效率增加了100倍。

Methods A wet hip joint's sample from corpse was scaned by CT and all images of every cross-section hip joint's layer was obtained, and an hip joint's model was contructed with Unigraphics NX 2.0 and Solid Works 2006 SP 0.0 software. The models were assembled when simulated total hip arthroplasty after total hip joint prosthetic and ischiofemoral ligament model had been constructured. Analysis was done on von Mises stress distribution and amount of total hip component when simulated seated leg-crossing manuver. The bone and metal components were meshed as rigid bodies, composed of three-dimensional, all-quadrilateral rigid body elements, and hip joint capsule ligament was fully three-dimensional, hexahedral continuum elements representations. Results The current form of this ischiofemoral ligament's reconstruction finite element model provided for multi-body contact, large displacement interfacial sliding, large deformation capsule ligament representation, and clearly reflected the real ischiofemoral ligansent's anatomy and biomechanical behavior. The maximum on Mises stresses at the joint interface was more than that fur an otherwise identical hardware-only construct.

选择成人尸体髋关节行CT成像得到髋关节每层横截面图像，提取边界坐标，利用有限元分析软件Unigraphics NX 2.0和Solid-Works 2006 SP0.0构建出髋关节三维有限元模型及人工髋关节假体，并模拟全髋置换术进行装配，将坐股韧带按其术中重建位置进行构建骨骼与金属模型采用三维十节点四面体实体单元进行网格划分，关节囊六面体连接单元划分，模拟坐位腿交叉动作载荷获取假体撞击过程的角活动度和相应的von Mises应力分布情况结果所构建的多体连接、大界面划移、大变形的坐股韧带重建有限元模型，客观反映坐股韧带真实解剖形态及生物力学行为，增加坐股韧带重建的模型其关节面的最大主应力值大于仅有金属的模型。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。