光诱导

The two different kinds of schemes for silica fiber poling,adulterant and/or photoinducing and electrical poling,are discussed in the paper.

首先讨论和比较了两种不同诱导石英光纤的方案，即掺杂物和／或光诱导方案及电场诱导方案，分析了它们各自的特点，在此基础上提出了一种新的诱导方法。

The response of Pn to instantaneous lighfflecksdepended on induction state and lightfleck length;full induction shoots could response morerapidly than low or non-induction shoots;and the increase of lightfleck length could raise photoinduction thus to increase Pn.

针叶Pn对单个瞬时光斑的响应与光斑前的光诱导状态和光斑时间长短有关，充分诱导的针叶Pn光斑的响应要敏捷得多，光斑时间延长可提高光诱导状态。

The R effect on time-dependent phototropism was further studied by characterizing its fluence-response relationship. The results showed the R effect was a low-fluence-response, unlike those on pulse-induced phototropisms that show a very-low-fluence-response mode.

本研究进一步分析了红光对蓝光照射时间依赖型向光性影响的光量反应曲线，发现该反应不像红光对脉冲蓝光诱导的向光性的影响那样属于超低光量反应，而是一种低光量反应，且之后的脉冲远红光可以逆转红光对TDP影响的效果。

Photoinduced Electron Transfer [2+2] Cycloaddition Reactions ofBenzannelated Isoquinolin-1-ones with Electron Deficient Alkenes Photoinduced [2+2] cycloaddition reactions of 11H-benzoxazolo[3,2-b]isoquinolin-11-one 8 and 11H-benzothiazolo[3,2-b]isoquinolin-11-one 13 with electron deficient alkenessuch as acrylonitrile, methyl acrylate, dimethyl fumarate and dimethyl maleate afforded a group of polycyclic isoquinoline derivatives bearing cyclobutane moieties ingood to excellent yields and resulted in the Schenck isomerization of the alkenes.

3苯并增环异喹啉-1-酮与缺电子烯烃的光诱导电子转移[2+2]环加成反应 11H-苯并恶唑[3，2-b]异喹啉-11-酮8和11H-苯并噻唑[3，2-b]异喹啉-11-酮13与缺电子烯烃如丙烯腈，丙烯酸甲酯，富马酸二甲酯及马来酸二甲酯的光诱导[2+2]环加成反应以高产率给出一系列含有环丁烷结构单元的多环异喹啉衍生物并导致烯烃的Schenck异构化作用。

Fourteen sediment samples with different content of Fe〓O〓 were collected from lower reach of the Liao River in China. The photodegradation of γ-hexachlorocyclohexane on the sediment surfaces was investigated to observe the effects of Fe〓O〓 and other photoinducable substances, such as TiO〓 and organic substances, on photodegradation of γ-HCH.

从辽河新民段采集了14种具有不同含量的Fe〓O〓的天然沉积物，为了探讨沉积物中Fe〓O〓和其它具有光诱导和光催化能力的物质如TiO〓和有机质成分对沉积物表面上的林丹的光解的影响，研究了γ-HCH在这些沉积物表面上的光解动力学。

Photodissociation spectroscopy of the complexes Mg~+-NCSCH_3 Mg~+-S_2(CH_3_2 in the spectral region of 230-440nm was oberserved. As to Mg~+-NCSCH_3 of photo-induced reaction, there were three channels. And there are the products Mg~+ from nonreaction quenching and reactive products Mg~+NC, Mg~+NCS in the reaction throughout the whole wavelength range.

观察了复合物Mg~+-NCSCH_3Mg~+-S_2(CH_3_2在230～440nm范围的光解离光谱，在此波段内的复合物光诱导产物的质谱显示，对Mg~+-NCSCH_3：光诱导反应有三个通道，存在着非反应猝灭产物Mg~+和反应产物Mg~+NC、Mg~+NCS。

The resultsshowed that one electron was photochemically transfered from rich electron part inside the C〓 derivatives to C〓 football. On the other hand,two step PET took place between C〓 and additional electron donor Et〓N, and so C〓anion as well as C〓 dianion could be detected in C〓/ Et〓N system.

结果表明：C〓衍生物分子内的富电子部分与C〓区域间发生分子内光诱导的一步单电子转移过程，对比而言，C〓分子与外加给体Et〓N间可相继发生两步光诱导电子转移反应，依次生成C〓和C〓阴离子自由基。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

The longer the lowlight and the lower the low-light intensity the longer the induction period required.Howeverthe shoot could keep its induction state during non-consecutive lightflecks unless lightfleckswere separated by a long low light period.

猝发性辐射强度越大，所需光诱导时间越长；低光期越长，低光期辐射越小，所需光诱导期越长；但只要光斑间隔不是太长，针叶仍可保持原有的光诱导状态。

G/kJ and 0.68 kJ/ respectively. Experimental results in PBR indicated that thymosin α1 could be expressed in situ in a 1. 2 L plate PBR with 3 klx incident red light intensity.

光生物反应器中转基因聚球藻7942诱导实验表明，采用1.2 L平板式光生物反应器和3 klx红光诱导可在光生物反应器中实现Tα1的表达。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。