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The effect of the toxin on protoplasmic membrane protein was studied by the method of fluorescence, using 8-anilino-1 -naphthalene-sulfonic acid as probe and taking the mesophyll protoplasts from maize leaves as the research system.

以玉米叶片原生质体为研究对象,以ANS(1-苯胺基-8-萘磺酸)作荧光探针,用荧光法研究了Ⅱ-3与质膜蛋白的互作。

The mechanism of formation of light-end products during M-HyPy was discussed.The results indicated that higher concentration and yields of BTX,PCX and naphthalene were found in M-HyPy as compared to HyPy,which is resulted from promoting hydrogenation and inhibiting repolymerization of free radicals due to the retention of hydrogen in M-HyPy.

结果表明:煤的多段加氢热解过程所得油品与传统的单段加氢热解油品相比,含有更丰富的高经济价值组分,如苯、甲苯、二甲苯和酚、甲酚、二甲酚及萘,这主要是因为氢气在峰温处的停留促进了自由基的氢化饱和及抑制了其再聚合的反应。

Fluorescence of NC16 and NC10NC at high pressure The monomer fluorescene intensity of the naphthalene chromophore in NC16and NC10NC in solid state and in LB film was decreased and red-shifted with theincrease in pressure, and a structureless excimer band at 415 nm was observed.

四。高压条件下NC16和NC10NC的荧光性质高压条件下研究了NC16和NC10NC在固体和在LB膜中的荧光性质,发现随压力增加,样品的单体荧光强度逐渐下降、红移;并在415 nm处出现萘的激基缔合物荧光。

The electroluminescence devices (ITO/NPB/emitting layer /BCP/Mg : Ag) based on 1, 4-bis (4-N, N-methylamino styryl) naphthalene as emitting layer have been designed by the energy band matching principle.

以自制的&D-π-D&对称型有机绿色发光分子1,4-双(4'-N,N-二甲基氨基苯乙烯基)萘为发光层,在结构为ITO/NPB/BMABN/BCP/Mg: Ag的器件中,研究了空穴阻挡层厚度对器件发光性能的影响。

A sulfonated poly aryl ether with sulfonic group on naphthalene ring of side chain and preparation thereof, which is capable to solve technical problems of complexity in synthesis, hardness in controlling sulphonation position and degree, high possibility of side reaction in sulphonation, complexity in sulphonation and hardness to realize indutrialzation.

一种磺酸基在侧链萘环上的磺化聚芳醚及其制备方法,解决现有技术中合成方法复杂,磺化位置和磺化度难以控制,磺化过程中容易发生多种副反应,磺化工艺复杂难以实现工业化等技术问题。

Aryl tetralin of lignans in podophyllotoxin has significant anti-tumor activity, which podophyllotoxin glucoside derivatives etoposide (VP-16) and teniposide (VM-26) is widely used in clinical.

芳基四氢萘类木脂素中的鬼臼毒素具有显著的抗肿瘤活性,其中鬼臼毒素的糖苷衍生物etoposide(VP-16)和teniposide (VM-26)被广泛用于临床。

But the yields decreased to 71~37% in n-propanol, i-propanol and i-butanol, with another trimeric byproduct 1-oxo-13c-(2-naphthyloxy)-1, 13c-dihydro-dibenzo xanthenes (29) increasing up to 30% yield.

而在正丙醇、异丙醇和异丁醇中二苯并咕吨4~6的产率下降至71~37%,另一个二聚体副产物1-氧代-13c-(2-萘氧基)-1,13c-二氢-二苯并-咕吨(29)的含量增加,产率可达30%。

Conductivity of Polyoxyethylene/Poly (2-vinyl pyridine)Blend and Compatibilizing Effect of Lithium Perchlorate;2. Graft terpolymerization of polyoxyethylene macromer with acrylates;3. Then multiblock copolymers was obtained by condensing polyoxyethylene and poly(2 vinylpyridine)with dichloromethane in the presence of potassium hydroxide.

甲基萘锂作为引发剂利用阴离子聚合得到 2 乙烯基吡啶的遥爪双羟基低聚物(P2VP),然后以二氯甲烷作偶联剂与聚环氧乙烷反应制备P2VP和PEO多嵌段共聚物,考察了反应时间对偶联反应的影响,并对共聚物进行了IR和1H NMR表征,由1H NMR谱的积分曲线得到了共聚物中PEO链段质量分数。

C NMR, IR, GC MS and TG combined with some techniques including solvent extraction method, TPO and structure characterization were applied to determine the components of the deposit on the coked β zeolite catalyst after reaction for 8?000 h in pilot plant scale. It was shown that the composition of the deposit ...

用13CNMR ,IR ,GC MS ,TG等手段,并结合溶剂萃取法、TPO和结构分析等方法,确定了改性β沸石催化剂上沉积物的主要成分是多异丙基苯和四氢化萘,且主要分布在沸石孔道内;同时,快速升温后恒温烧炭的效果优于慢速升温后恒温烧炭的效果

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6~58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1,3,4-噻二唑用亚硝酰硫酸进行重氮化,再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1,3,4-噻二唑类化合物,其中16个为新化合物,收率为19.6~58.8%。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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