| 1. | Blood lipid - regulation of stilbene glycoside from polygonum multiflorum
何首乌二苯乙烯苷的调节血脂作用 |
| 2. | Resveratrol ( trans - 3 , 4 ' - 5 - trihydroxystilbene ) is a naturally occurring phenolic compound of the stilbene family
白藜芦醇( resveratrol )是一种自然存在的多酚化合物，存在于少数不相关的植物中。 |
| 3. | In this thesis , we design a series of trans - stilbene derivatives and study their two - photon absorption properties by response and few states model . the work is done on dalton and gaussian - 98 program packs
本论文中；我们选择二苯乙烯系列衍生物作为研究对象，分别采用响应场方法和少态模型方法研究了它们的双光子吸收性质，计算过程分别在dalton和gaussian |
| 4. | For molecules with a given n center strong donors can result in the increasing of tpa cross sections . by caculation the d - a - a - d molecule which is constituted of bipyridine inserting in the middle of stilbene as center exhibits a maximum tpa cross section
通过计算发现，在以二苯乙烯为中心的中间插入两个氮苯构成的d - a - a - d型分子，具有最大的双光子吸收截面。 |
| 5. | At last , the structure - to - property is researched , we design a series of trans - stilbene derivatives with different arrangements of the substitutions and study their two - photon absorption properties by using the response theory method at hf level
最后，本文选取了一系列不同官能团取代的具有不同对称性的二苯乙烯系列衍生物，对其双光子吸收截面与分子结构之间的关系进行了研究。 |
| 6. | 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
摘要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。 |
| 7. | As a popular vegetable , tomato is rich in vatamin a , b , p and other nutrients ; among them , lyxopene can prevent prostate gland tumor . so introducing stilbene synthase gene into tomato to get new health - protection tomato will have important social and economic effect . our research is made up of four parts ; the cloning and sequencing of stilbene synthase ; tomato genetic transforming mediated by agrobacterium - lba4404 ; quantification of resveratrol in transgenic tomato by hplc analysis
本研究包括四个方面的内容：芪合酶基因( stilbenesynthasegene )的克隆与全序列分析；芪合酶基因( stilbenesynthasegene )植物表达载体的构建；农杆菌lba4404介导的番茄遗传转化： hplc技术分析转基因植株中表达白藜芦醇的含量。 |
| 8. | The molecules we studied are a series of trans - stilbene derivatives . first , we applied dft method optimized the new synthesis molecule 4 , 4 ' - bis ( dimethylamino ) stilbene ' s structure , and used few states model calculated its tpa cross section . the results agree well with the experiment data
首先，我们在密度泛函理论( densityfunctiontheory )的水平上对最近合成的分子材料4 ， 4 -二甲氨基二苯乙烯的结构进行了优化，然后采用少态模型方法计算了分子的双光子吸收截面，得到了与实验符合很好的结果。 |
