查询词典 stilbene dye

Methods: Response surface methodology was applied to study effects of extraction temperature, ethanol concentration, extraction time and solid to liquid ratio on extraction yield of anthraquinone and stilbene glycoside as well as clearance rate of the extracts to DPPH radical.

通过单因素和中心组合试验，对影响何首乌中二苯乙烯苷、蒽醌类化合物含量的提取因素（温度、酒精浓度、时间、料液比）进行了研究，同时将提取物清除DPPH自由基的能力作为考察指标，运用响应面分析法确定清除自由基组分提取的最优化工艺条件。

Oligostilbenes are a type of compounds with complex structures and multi-faced bioactivities, polymerized from stilbene monomers.

二苯乙烯类低聚体是由二苯乙烯单体以不同方式聚合而成的一类结构复杂，具有多种生物活性的化合物。

Two stilbene derivatives, 1-(4-methoxystyryl)-4-vinylbenzene and 1-(4-vinylstyryl)naphthalene, were synthesized.

2将ATRP的端基功能化和单体功能化相结合制备具有蓝绿双色荧光聚合物材料。

The geometry, electronic structures and electronic spectra of trans stilbene derivatives are systematically studied by PM3 and INDO/CI methods.

分子在强激光束作用下，能同时吸收两个光子的现象称为双光子吸收。

The transformed plants were selected by Kanamycin,and PCR analysis and RT-PCR analysis preliminarily proved the stilbene synthase gene had been integrated into the tobacco genome and could transcript normally.

经卡那霉素筛选、PCR、RT-PCR检测后，初步证明芪合酶基因已被整合到烟草基因组中，并可以正常转录。

In order to investigate the antioxidant activity, thirteen stilbene derivatives was examined by DPPH method. The radical scavenging ability is greatly increased by 2, 5-dihydroxy groups in the skeleton. There is a linear relationship between the maximum UV absorption wavelength and the radical scavenging ability of the compounds.

为了考察羟基衍生物的抗氧化活性，应用DPPH法对13个茋类化合物进行自由基清除能力评价。2，5-二羟基取代茋衍生物显示出较强的自由基清除能力，8个非氮杂茋衍生物的最大紫外吸收波长与自由基清除能力之间呈线性相关性。

Are there any similar effects of stilbene derivatives on animals as they do on plants? In the present work, the chemical modification of resveratrol is investigated in detail. Furthermore, virtual screening, bioactivity evaluation and structure-activity relationship analysis are done on the designed molecules.

本论文力图探讨茋类化合物是否对动物体具有类似其在植物体中的免疫功能，以代表性的天然茋类化合物白藜芦醇(Resveratrol，3，5，4\'-三羟基-反-1，2二苯乙烯)为研究出发点，进行分子设计、虚拟筛选、活性评价和构效关系分析。

BACKGROUND: Previous studies exhibit that stilbene glucoside, which is the main active component of poygonum multiflorum root, has effects of reducing blood lipid, anti-atherosclerosis and protection of cardiovascular.

背景：大量实验表明，中药何首乌有效活性成分二苯乙烯苷具有降血脂、抗动脉粥样硬化和保护心血管等作用。

A molecular database containing 166 stilbene derivatives was established. Potential antiviral targets were screened on Target Fishing Dock. Above all, 104 compounds showed inhibitive activity on HIV protease.

由166个衍生物构建虚拟小分子库，运用上海药物所的药物靶标筛选平台，在更大范围搜寻该类化合物的抗病毒靶标。

The spectrum evolution of the femtosecond laser pulse in a three-level organic molecular medium 4, 4'-bis(dimethylamino stilbene is studied theoretically by solving the Maxwell-Bloch equations using an iterative predictor-corrector finite-difference time-domain method.

通过采用预估校正的时域有限差分法求解麦克斯韦-布洛赫方程，我们研究了飞秒激光脉冲在三能级有机分子(4， 4'-二甲氨基二苯乙烯分子)介质中传播时脉冲的频谱演化情况。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。