光抑制

Natural vitamin E as antioxidant in Oils and fats is susceptible to autoxidation or light oxidation because of the existence of radicals arid K .

作为抗氧化剂的天然维生素E在油脂中对油脂自动氧化和光氧化有抑制作用。

A special image-processing algorithm was used to suppress the starlight bleeding around the coronagraph to the point where the planet was detectable.

使用一个专门的图像算法，用来在行星可能存在区域中，抑制恒星光的衍射散射光芒。

A special image-processing algorithm was used to suppress the starlight bleeding around the coronagraph to the point where the planetwas detectable.

使用一个专门的图像算法，用来在行星可能存在区域中，抑制恒星光的衍射散射光芒（这就不是简单使用Photoshop来实现了——译注）。

The result indicates the t-BHP or diamide both cause the mass loss about the membrane protein thiol in hepatocytes, the fast oxidization about glutathione in hepatocytes, the leakage of lactate dehydrodenase, but the level of t-BHP is larger than of diamide. In the aspect of lipid peroxidation, only the t-BHP produces apparent change. As to actin and tubulin, they both find fall-off and present time-dependency effects. The result in Confocal fluorescent microscope also show these two cytoskeletal proteins are related to cell blebbing, but they don''t play the same role during the porcess. Tubulin may be more important than actin. If the study predispose dithiothreitol before adding t-BHP or diamide, then the damage by the diamide is repressed, but just partly protection for the damage by t-BHP.

结果显示t-BHP或diamide均可造成细胞膜蛋白硫醇大量流失与胞内GSH快速氧化，亦显著导致乳酸去氢□渗漏，但t-BHP诱发的渗漏程度大於diamide；在脂质过氧化方面，则仅t-BHP处理组产生明显的脂质氧化情形；至於肌动蛋白与管蛋白单体均可见减少且呈现时间依赖效应；在雷射共轭焦萤光显微镜观察中，亦显现这两种架构蛋白与细胞膜起泡有关，但两者在小泡生成的过程中扮演的角色并不完成相同，可能管蛋白较肌动蛋白重要；如果细胞在t-BHP或diamide加入前预先以dithiothreitol处理，则diamide 所造成的伤害显著的受到抑制，但DTT对t-BHP所诱发的伤害则仅有部分保护效果。

The photocycloaddn. of 1-naphthonitrile (1-NpCN) and 2,3-dimethyl-2-butene in cyclohexane or benzene gave cyclobutane I primarily, but that of 2-NpCN gave azetine II as the major and cyclobutane III as the minor product in low conversion photolysis. The photocycloaddn. of 1-NpCN with DMB is retarded by increasing amts. of trifluoroacetic acid which is shown to form non-photoreactive complexes with ground state as well as with singlet excited state 1-NpCN. It also quenches the *(1-NpCN-DMB) exciplex.

在低转光解情况下，1-萘甲腈(1-NpCN)和2，3-二甲基丁烯-2在环已烷或苯中的光环加成反应主要得到环丁烷3，但2-NpCN主要得到氨杂环丁烯6和少量的环丁烷5，三氟醋酸量增加抑制1-NpCN和DMB的光环加成反应，表明TFA与基态及单激发态1-NpCN生成非光反应的复合物，它也淬灭^*(1-NpCN-DMB)激基复合物。

BMSCs subretinal transplantation could inhibit photoreceptors apoptosis and slow down retinal damage in light-damaged eyes.

BMSC的视网膜下移植能够抑制光感受器细胞的凋亡，并能减慢光损伤眼睛视网膜的受损速度。

The following results were obtained.(1) The dissociation of some LHCⅡs from PSⅡ complex occurred after saturating illumination, but FSBA treatment inhibited the dissociation as shown by analysis of sucrose density gradient centrifugation and low-temperature (77K) chlorophyll fluorescence.(2) A significant increase in Fo and decrease in Fv/Fm occurred after saturating illumination, and the two parameters could largely recover to the levels of dark-adapted leaves after subsequent 3 h in the dark, but they could not recover when FSBA existed during saturating illumination.

获得如下结果：（1）饱和光照明可以引起部分LHCⅡ从PSⅡ核心复合体上脱离，但FSBA处理可以抑制LHCⅡ脱离；（2）大豆叶片经过3小时饱和光处理后，初始荧光Fo明显升高，而PSⅡ光化学效率Fv／Fm显著降低，但经过随后3小时暗恢复后，Fo和Fv／Fm基本可以恢复到初始暗对照的水平，而FSBA处理增大它们的变化程度，并且放置暗中3小时后不能恢复。

Although analytical formulas are not accurate enough to calculate stray light, they can help designer to distinctively understand the cause of formation of seven types of stray radiation and their influences, so as to adopt proper methods to restrain stray light and to optimize baffle design.

采用公式法计算系统杂光，精度虽然稍差，却可清楚地了解系统七种类型杂光的成因和影响，便于有针对性采取抑制措施，优化遮光设计。

Studies of the effect of various active oxygen quenchers on HC-B Photosensitized oxidation of bilirubin indicated that in serum both free radical reactions and singlet oxygen reaction seem to occur simutanously.

比较在不同溶剂中各种活性氧淬灭剂对胆红素光氧化的抑制作用，指出血清胆红素光敏氧化反应包括自由基氧化反应和单态氧氧化反应等多重机制。

Maintenance in both natural and short photoperiods during the restoration phase, pikas showed significantly increased the gonadal masses than the field collection group in the early ten days of Feburary (P.01). While maintenance in the upper two photoperiods during in the sexually quiescent phase, pikas didn't show signigficently increased in gonadal masses than the field collection group in the last ten days of December.

在不同光制对鼠兔生殖内分泌功能影响的研究中，1月下旬捕获的鼠兔，在自然光（L/12 h）和短日照条件下饲养49天以后，性腺器官也呈现显著萌发并产生成熟配子的现象；而在9月中旬捕获的鼠兔，在上述光周期条件下饲养81天后，却呈现显著抑制性腺功能的作用。

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