查询词典 photon

The contributions of photon radiations are ignored because they are negligible compared to the contributions of the particle radiations, or can be calculated and added to the S-values using MIRD formulae.

如果细胞群较小，则光子的剂量贡献忽略不记。细胞群中每个细胞内的放射性活度相同。计算得到细胞群中各个周围细胞中心到靶细胞中心的距离和周围细胞中的核素对靶细胞的剂量贡献。

Such an enhancement is an important considera- tion in the region of photon momenta under investigation in high- energy heavy-ion collisions.

这个增加在高能重离子碰撞中光子动量区域内很重要。

The entangled properties of motorial atom and field in the two-photon Jaynes-Cummings model with atomic motion are studied by using the quantum information theory.

用量子信息理论研究具有原子运动的双光子Jaynes-Cummings模型中运动原子与光场的纠缠特性。

When pumped with 800 nm laser irradiation, chromophores BPODPA, BBPOPA, and TBPOA showed strong two-photon excited blue green fluorescence at 502, 515, and 518 nm, respectively. These multibranched chromophores showed large TPA cross-section.

在800nm波长的激光激发下，化合物BPODPA、BBPOPA和TBPOA在二氯甲烷溶液中发出很强的蓝绿色双光子上转换荧光，荧光峰分别位于502、515和518nm。

The enhanced two-photon absorption found in these chromophores was attributed to the fact that the multibranched chromophores had both an extended π-conjugated system and an increased intramolecular cooperative effect compared to the one-branched chromophore.

这些多枝结构化合物的双光子吸收截面较大，双光子吸收增强来源于多枝分子中扩展的π共扼体系和重复单元的协同效应。

Two-photon absorption; Nonlinear optics properties; Ultrafast dynamics; Time-resolved fluorescence; Time-resolved fluorescence anisotropy; Solvent effect; multibranched structure

论文导师钱士雄，论文学位博士，论文专业光学论文单位复旦大学，点击次数 19，论文页数 96页File Size4789K

Secondly,two-photon entangled pair is produced in noncollinear direction.Wediscuss the influence of fourth-order interference with three different length crystalsand with different frequency distribution of interference filters.

其次，利用飞秒脉冲II型参量下转换在非共线方向产生偏振纠缠的双光子对，我们利用三块不同长度晶体分析晶体长度以及探测谱线宽度对纠缠四阶干涉的影响，实验选用长度分别为0.1mm、0.5mm和1.0mm的BBO晶体。

The cavity field spectrum of the nondegenerate two-photon Jayners-Cummings model with an additional Kerr medium is studied.

研究了Kerr效应对单个二能级原子与二项式光场相互作用系统腔场谱的影响。

Oxygenic photosynthesis uses water as an electron donor which is oxidized into molecular oxygen by the absorption of a photon by the photosynthetic reaction center.

Oxygenic光合作用使用水作为被氧化入分子氧气由光子吸收由光合作用的反应中心的给电子体。

Methods and Results— Using a micro–single-photon emission computed tomography small-animal imaging system and a Food and Drug Administration–approved radiotracer ([indium 111] oxyquinoline, 111In-oxine), we demonstrate here that monocyte recruitment to atherosclerotic lesions can be visualized in a noninvasive, dynamic, and 3-dimensional fashion in live animals.

方法和结果——采用微单光子发射计算机断层摄影术的小动物成像系统和美国食品药品治理局认同的放射性示踪剂（111In-oxine），我们证实动物体内单核细胞向动脉粥样硬化损害处的聚集能够通过一种非侵入性，动态的，3维方式进行可视化观察。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新