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But does not recognize that both parties have since Beijing real estate market is the existence of a" demonizing "Shunchi tendency on the Shunchi rumors appear to be particularly large, Although no smoke without fire, but some were too fuss.

但是无论当事人承认不承认,一直以来,北京房地产市场上确实存在着一种&妖魔化&驰的倾向,关于驰的传言似乎特别多,虽说无风不起浪,但是有些传言也过于小题大做。

The influence factors such as amount of catalyst,molar ratio of maleic anhydride to n-butanol,and reaction time on the yield of dibutyl maleate were discussed.

以La2(SO4)3/SiO2为催化剂,丁烯二酸酐和丁醇为原料,合成内增塑剂丁烯二酸二丁酯,探讨了催化剂用量,酐醇物质的量比以及反应时间等对收率的影响。

In the asymmetric epoxidation of cis-β-methylstyrene, the selectivity and enantiometric excess for the epoxides reached 96% and 78%, respectively. The recyclability of the catalyst was also studied.

结果表明,该配合物对-β-甲基苯乙烯的不对称环氧化反应具有很好的催化性能,产物选择性达96%,ee值达78%,以-β-甲基苯乙烯为底物,m-CPBA为氧化剂,考察了该配合物催化剂的循环使用性能。

Pinl is a kind of peptidyl-prolyl cis/trans isomerase. Pinl specifically isomerizes the pSer/Thr-Pro motifs in proteins, relating to kinds of human diseases, especially cancer and AD.

hPinl是一种肽基脯氨酰反异构酶,能特异催化蛋白质分子中pSer/Thr-Pro肽键的反构型转变,与多种人类疾病相关,尤其是癌症和阿尔茨海默氏病(Alzheimers disease,AD)。

According to the results of the examination, the stronger the electron-withdrawing protective group of imines, the better the cis-selectivity of the reaction, 68% yield, trans:cis is 99:1 diastereoselectivity could be leaded by Ts-imines (4-methyl-N-methylene-benzenesulfonaides) with a substituent [2,4-(CH3O)2C6H3], Substrate scope investigation revealed that a wide variety of ketenes and imines could react smoothly to afford corresponding,β-lactams.

实验结果表明,亚胺的保护基团吸电子能力越强,越有利于式产物的生成。对甲苯磺酰基保护的取代基为2,4-二甲氧苯基的亚胺参与的该反应可得到68%的产率,反式:式=99:1的非对映选择性。底物拓展过程中发现Staudinger反应适用于多种不同的亚胺与烯酮。

Rresults from those studies can be summariazed as follow:(1) A preliminary study no correlationship between the UV-VIS reflection spectrum of tomato fruit surface and the lycopene amount of tomato fruit was undertaken. Based on observation from this study, a damage-free and in-situ detection technique of lycopene amount from tomato was developed with UV-VIS reflection spectroscopy;(2) The geometrical isomers of lycopene were separated successfully on C30-HPLC-PDA-ELSD. The absorption coefficients of Z-isomers were consequently dedermined. The geometrical isomer composition of lycopene could therefore be assessed. Those efforts formed a solid base to identify the natural product from synthetic compound of lycopene;(3) Lycopene resource from the fruit of Autumn oliver was proved to be available for industrial application. An extraction methos of lycopene from the fruit of Autumn oliver by supercritical carbon dioxide was developed at laboratory scale;(4) A method to extract lycopene by supercritical liquid with improved efficiency was developed; Data from this investigation suggested that a proper raw material pre-extraction process was important for a better extraction efficiency;(5) Variation in the geometrical isomer composition of lycopene during its metabolish in rat was assessed. A large amount of Z-isomers were observed. This variation took place in serum;(6) The absorption rate and accumulation in serum of natural lycopene in rat were assessed;(7) Ability to quench singlet oxygen by different geometrical isomers of lycopene was compared;(8) It was detected that whether natural lycopene had functions to regule blood-lipids and LDL antioxidation;(9) A C31 degradation piece of lycopene was found in the prostate gland of rat.

研究结果包括:[1]应用UV-VIS反射光谱法建立了番茄果实中番茄红素含量的无损伤、现场检测技术;[2]应用C30-HPLC-PDA-ELSD技术实现了对番茄红素几何异构体的分离,测定了不同式异构体的吸光系数,建立了天然番茄红素几何异构体组成的检测方法,为区分和鉴定人工合成品和天然产物奠定了基础;[3]证实了秋橄榄果实中的番茄红素资源具有工业开发价值,并建立了超临界CO_2萃取的实验室方法;[4]探索了提高番茄红素超临界流体萃取效率的方法,证明了物料前处理对提高萃取效率起了极其重要的作用;[5]观察了番茄红素在大鼠体内几何异构体组成的变化情况,发现了大量式异构体的存在,并证实了几何异构体组成在血清中发生了显著变化;[6]测定了天然番茄红素在大鼠体内的吸收率和在大鼠血清中的动态积累规律;[7]比较了不同番茄红素几何异构体淬灭单线态氧的能力;[8]检测了天然番茄红素是否具有调节血脂作用和抗低密度脂蛋白氧化的功能;[9]首次发现大鼠前列腺内存在番茄红素C31降解片段,并证实其仍具有淬灭单线态氧的能力。

Abstract] Objective To assess the value of the accuracy location and function of concomitant veins in lower limbs with ascending venography.

摘要] 目的评价行静脉造影在明确下肢交通支静脉位置和功能中的作用方法综合分析134例157侧下肢所做的行深静脉静脉造影结果。

In 1993, Yue Yao-min set up the Beijing Shunda Albert Transport Limited with the heroic courage, confidence and the correct management and solid management capacity, he led all the members of the company's steady development, year by year results significantly, to the present, the Beijing-shunda Albert Transport Company Limited has more than 1,000 freight big trucks, has become the industry leader in so many people in the industry and praised by people .

1993年,岳耀民以豪迈的信心和勇气,成立了北京达伟业运输有限公司,正确的经营理念与扎实的管理能力,使岳耀民领导公司的全体成员稳步发展,成效逐年显著,到目前,北京达伟业运输有限公司已经拥有上千辆货运大卡车,成为京城同业中的佼佼者,令众多业内人仰视。

Effects of microwave power, reaction time, reaction temperature, solvent etc. on reaction were studied by a single factor tests. The results show that maleic acid is more active than fumaric acid; the introduction of methyl group on the double bond can weak the reactivity of the Michael addition reaction; the ester base is more propitious to complete the Michael addition reaction than the nitrile base.

为研究微波下迈克尔反应的规律,本文采用单模聚焦微波有机合成仪,通过对丁烯二酸、反丁烯二酸和氨水合成DL-天冬氨酸、式3-甲基丁烯二酸和氨水合成3-甲基天冬氨酸、丙烯酸甲酯和氨水合成β-丙氨酸、丙烯腈和氨水合成β-氨基丙腈等五个反应对迈克尔加成反应进行了研究。

That, though it was my mother's fate to die young, she spent the last years of her life with me; that, whenever I wished to help any man in his need, or on any other occasion, I was never told that I had not the means of doing it; and that to myself the same necessity never happened, to receive anything from another; that I have such a wife, so obedient, and so affectionate, and so simple; that I had abundance of good masters for my children; and that remedies have been shown to me by dreams, both others, and against bloodspitting and giddiness...; and that, when I had an inclination to philosophy, I did not fall into the hands of any sophist, and that I did not waste my time on writers of histories, or in the resolution of syllogisms, or occupy myself about the investigation of appearances in the heavens; for all these things require the help of the gods and fortune.

清晰的印象经常出现在我心中,告诉我生自然,告诉我那是一种什么样的人生,因此,只要依靠诸神及其赐福,其保佑,其启示,就没有什么能阻止我生自然,尽管由于我自身的不足和没有注意诸神的警告(或者差不多可以说是诸神的直接指令),我还不能完全做到;我的身体已经维持了很长一段时间这种生活;我永远不会接触本尼迪克特或狄奥多士,我曾经陷入恋爱的激情,但现在已经摆脱;当我和汝斯堤古在一起时常常发脾气,但我从来没有做过一件让人后悔的事

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?