光诱导

The fluorescence spectra for whole blood,erythrocyte and hemoglobin from healthy and fresh experimental mice under the wavelength of 407nm (Δλ 1/2≈18nm) excitation are measured by a grating spectrometer,and their emitting mechanism and spectral characteristic are investigated.

引 言利用光诱导产生的荧光光谱了解生物大分子的结构或诊断生物组织病变已经盛行很多年了，在临床上荧光显微镜和血细胞计数器等仪器已经成了检查人的身体健康状况的基本工具。

The trials were carried out in field experiment and artificial climate incubator. The sugar beet growth buds were treated at 1～3pairs of true leaves with gibberellin , autix , naphthaleneacetic acid and kinetin , and the plant growth regulating substances enhancing bolting of sugar beet in the first year and its doses were selected out. The sugar beet seedling induced by temperature and light were treated by abscisic acid , maleic hydrazide , uniconazole (S-3307) and paclobutrazol (PP333), and the plant growth regulating substances which make bolting reverse and their doses were screen out. The mechanisms of bolting and bolting reversing were discussed by examining the changes of endogenous hormones, activities of correlative enzyme to bolting, soluble protein, components of amino acid in the protein, components of fatty acid. The results were as follow

本研究通过田间试验和人工气候箱培养相结合的方法，在甜菜幼苗1~3对真叶时利用赤霉素、生长素、奈乙酸和激动素等生长调节物质处理茎生长点，筛选促进甜菜当年抽苔的植物生长物质及剂量；同时利用脱落酸、马来酰肼、烯效唑（S-3307）和多效唑（PP333）等处理经温光诱导当年抽苔的甜菜幼苗，筛选对当年抽苔逆转有效的种类和剂量，并通过测定内源激素含量、相关酶活性、可溶性蛋白质含量和氨基酸组分及脂肪酸含量及其组分的变化，探讨甜菜当年抽苔和抽苔逆转的机理，得到如下结论

The electric field can also bring out a shift to both the vortex lattice and the particle distribution.

研究了光诱导的非阿贝尔规范势在冷原子中的效应。

This system has good thermal stabi ity in ground state. When excited, it can undergo intra-ion-pair electron transfer, leading to the bleaching of the dye and the decomposition of the onium salt. The later results in the formation of initiating radical species.

在基态，这种体系具有良好的热稳定性，而在激发态时能发生离子对内光诱导电子转移反应，导致其发生漂白和碘鎓盐的分解反应，产生具有引发作用的自由基。

Comparing with phototrophic culture and heterotrophic culture, mixotrophic culture can't influence the inducement synthesizing of pigment but improve the cell concentration of Spirulina, so mixotrophic culture has the potential and particular value in large scale culture. But mixotrophic culture has't come true in commercial production up to the present, it is very important to study the high cell-density mixotrophic culture of Spirulina.

混合营养培养与光合自养及异养培养相比，既可提高微藻细胞密度，又不影响色素等光诱导产物的合成，在大规模培养中具有独特的优势，但至今微藻混合营养培养还没有在商业生产上实现，因此开展螺旋藻高密度混合营养培养工艺的研究显得尤为重要。

The structure and function of PSI are studied in this paper.

为了进一步阐明PSI的结构和功能，本论文分别研究了热对PSI的影响和光诱导的PSI核心复合物的积累过程： 1。

Biological studies indicated that these conjugation could form quinone methide intermediate after illumination.

该类化合物能在光诱导下产生与核酸形成烷基化或交联化的醌的甲基化物中间体。

One positive bipolaron can be slipt into two positive polaron, and one positive polaron can be split into one a negative polaron and the other a positive bipolaron—where this photoinduced carrier fission does not need the aid of an external electric field, which is a typical symmetry breaking.

一个正的双极化子裂变成两个正的单极化子，以及一个正单极化子可以裂变成一个正的双极化子和一个负的单极化子。光诱导的载流子裂变不需要一个外电场的帮助，是一个典型的对称性破缺。

Ascorbic acid, a well-known natural antioxidant, was successfully used to remove the sulfonyl group of α-phenylsulfonyl acetophenone derivatives by photochemical method.

抗坏血酸作为众所周知的天然抗氧化剂，在光诱导电子转移反应中被成功地运用到α-苯磺酰基苯乙酮衍生物磺酰基基团的移除反应中。

According to the fluorescence quenching and the fluorescence changing of mixed solution with irradiation time it was indicated that the photo-induced electron transfer between triazine as an electron acceptor and intra-molecular charge tranfer compounds as an electron donor have occurred in these systems.

通过荧光猝灭和体系荧光随时间的变化可看到作为电子受体的三嗪分子和作为电子给体电荷转移化合物间的光诱导电荷转移作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐