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Aromatic and aliphatic aldoxime s could be efficiently converted into the corresponding carboxylic acid esters by treatment aldoxime s with an alcoholic solution of 30% hydrogen peroxide in the presence of catalytic amounts of polystyrene-bound phenylseleninic acid.

在30%双氧水和醇组成体系中,聚合物负载的苯亚硒酸试剂可有效地促进过氧化氢氧化肟转变成羧酸酯;相应伯醇和仲醇的羧酸酯的产率中等到良好,但在含叔醇的体系中没有相应的羧酸酯生成。

In part one, the reactions of some active fluorine-containing compounds such as 2, 2-dihydropolyfluoroalkanoic acids and ethyl 2-hydropolyfluoroalkenoates were studied and various fluorine-containing heterocyclic compounds were synthesized. Using 2, 2-dihydropolyfluoroalkanoic acids as the starting material, 4-fluoroalkyl quinolin-2-ols, 2- [ -1-hydropolyfluoro-1-alkenyl] -4H-3, 1-benzoxazin-4-ones, 1-aryl -4, 9-dihydro-3-fluoro-alkyl-1H-pyrazo [3, 4-b] quinolin-4-ones, 5-fluoroalkyl-12H-quin olino [2, 1-b] quinazolin-12-ones, 4-fluoroalkyl-1, 3-dihydro-1, 5-benzodiazepin-2-ones and 4-fluoroalkyl-2H-pyrido [1, 2-a] pyrimidin-2-ones were synthesized through its condensation reaction with anilines, anthranilic acid, N'-aryl-o-aminobenzamides, o-nitro aniline, o-amino pyridine and their derivatives and the subsequent transformations. 5-Fluoroalkyl isoxazolidines, 3-fluoro-3-fluoroalkylisoxazolidino [4, 3-c] quinolin-4-ones, 3-fluoroalkylisoxazolino [4, 3-c] quinolin-4-ones and 2-aryl-3per fluoroacylindoles were synthesized by inter-and intramolecular 1, 3-dipolar cycloaddition of fluorine-containing olefins and nitrones.

第二部分,我们研究了α,α-二氟苄基卤类化合物的亚磺化脱卤反应、产物的转化及全氟烷基亚磺酸盐与芳环化合物的全氟烷基化反应,发现全氟苄基碘或溴及α,α一二氟苄基溴在保险粉等亚磺化脱卤试剂引发下可生成相应的亚磺酸盐;全氟苄基亚磺酸盐与氯气或溴反应可生成全氟苄基磺酰氯或磺酰溴;在烯烃存在下,全氟苄基碘则与烯烃发生加成反应,生成相应的1:1加成产物;在三价醋酸锰的作用下,部分芳香化合物如茴香醚,二甲氧基苯,吡啶,喹啉等可以和过量的全氟烷基亚磺酸盐发生双全氟烷基化反应,反应表现出一定的区域选择性,产率良好。

The metabolites were mainly aldehydes and acids when the level of inoculation was 10~9cfu/ml, however, alcohols, acids and esters were produced when the level of inoculation was 10~8cfu/ml. The optimal temperature and pH for production of 3-methyl butanal were 40℃ and 7.0, but NaCl and NaNO_2 inhibited its production.

接种量不同会导致代谢BCAA的产物不同:接种量为10~9 cfu/ml时生成相应的醛和酸;接种量为10~8 cfu/ml时生成相应的醇、酸和酯。S52菌株在40℃,pH 7.0,无亚硝酸盐和NaCl的情况下产3-甲基丁醛的量最多。

We could draw a conclusion that microemulsion solubilization was effected with both the total amount of surfactant and cosurfactant on the interfacial film of microemulsion and confusable degree of interfacial film of microemulsion.

结果发现:当微乳界面膜上的表面活性剂和助表面活性剂总量增多,则相应的微乳体系增溶水量较大;微乳界面膜的混乱度增大,柔性增大,使得微乳界面膜易于弯曲,使微乳易于形成规整的球体,相应的微乳增溶水量较大。

Retroreflector array is used as pseudo phase conjugator in the system. The fidelity of the conjugate wave and matching problem of the retroreflector array and Hartmann-Shack wavefront sensor is discussed. Several data fusion methods are presented in order to having two Hartmann-Shack wavefront sensors control one set of wavefront corrector. The misalignment errors of Hartmann-Shack wavefront sensor and arrangement errors of wavefront sensor and deformable mirror are analyzed. At the same time, numerical work based on the data of practically system, such as 61 element AO system, are done corresponding to the problem respectively and the results are given.The system of CP/CM AO is setup to fulfill all the functions.

针对不同的应用环境,提出了四种CP/CM衍生光路;进行了关键器件——角反射器阵列的保真度分析,给出了角反射器阵列作为伪相位共轭器件,与哈特曼—夏克波前传感器的匹配条件,认为角反射器阵列的布局要与哈特曼波前传感器的微透镜阵列布局完全对应,才能达到最优探测效果;提出了四种双哈特曼传感器控制一套波前校正器的数据融合方式,并逐一进行了分析,认为加修正因子斜率融合和电压融合方式在目前工程中是适用的,并进行了相应的数值模拟;给出了哈特曼传感器自身的调整误差分析过程,得到了误差可通过常规标定消除的判断依据;通过数值计算,得到了常规自适应光学系统和CP/CM系统哈特曼传感器和变形镜的对准误差对系统性能的影响,给出了两种系统对于不同对准误差情况下校正效果的变化情况和相应系统容限;以37单元自适应光学系统为基础,搭建了CP/CM自适应光学系统光路,并完成了系列CP/CM功能实现实验,运用双哈特曼传感器数据融合,成功实现了CP/CM自适应光学系统的闭环实验。

Retroreflector array is used as pseudo phase conjugator in the system. The fidelity of the conjugate wave and matching problem of the retroreflector array and Hartmann-Shack wavefront sensor is discussed. Several data fusion methods are presented in order to having two Hartmann-Shack wavefront sensors control one set of wavefront corrector. The misalignment errors of Hartmann-Shack wavefront sensor and arrangement errors of wavefront sensor and deformable mirror are analyzed. At the same time, numerical work based on the data of practically system, such as 61 element AO system, are done corresponding to the problem respectively and the results are given. The system of CP/CM AO is setup to fulfill all the functions. Through the data fusion of two Hartmann-Shack wavefront sensors, the system runs successfully and realizes the close loop. It lays a good foundation for the application of CP/CM AO. Another aspect of this paper is to expand the working band of Hartmann-Shack wavefront sensor through Frequency Transfer of Nonlinear Optics.

针对不同的应用环境,提出了四种CP/CM衍生光路;进行了关键器件——角反射器阵列的保真度分析,给出了角反射器阵列作为伪相位共轭器件,与哈特曼—夏克波前传感器的匹配条件,认为角反射器阵列的布局要与哈特曼波前传感器的微透镜阵列布局完全对应,才能达到最优探测效果;提出了四种双哈特曼传感器控制一套波前校正器的数据融合方式,并逐一进行了分析,认为加修正因子斜率融合和电压融合方式在目前工程中是适用的,并进行了相应的数值模拟;给出了哈特曼传感器自身的调整误差分析过程,得到了误差可通过常规标定消除的判断依据;通过数值计算,得到了常规自适应光学系统和CP/CM系统哈特曼传感器和变形镜的对准误差对系统性能的影响,给出了两种系统对于不同对准误差情况下校正效果的变化情况和相应系统容限;以37单元自适应光学系统为基础,搭建了CP/CM自适应光学系统光路,并完成了系列CP/CM功能实现实验,运用双哈特曼传感器数据融合,成功实现了CP/CM自适应光学系统的闭环实验。

In such mode, the economic development becomes the focus of work, forming an"extruding"effect on social public service and the resource used for social development also being reduced correspondently. As a result, township government is not able to meet the need of public service and products from people, or to gain political support from them.

在这种模式下,经济发展成为一切工作的轴心,对社会公共服务形成挤出效应,资源用于社会发展的部分也就相应减少,这就使得乡镇政府无力满足基层社会对公共服务和公共物品的需要,相应地,也就无法获取自身发展所需要的政治支持。

Corresponsive results acquired by setting parameters under different condition help to improve the management of agro-ecosystem.

针对不同环境条件设定相应的仿真参数,可以得到相应的害虫或杂草种群演化结果,有助于农田生态系统的科学管理。

As for the change of investment subject of the business entity, the original business entity shall go through the corresponding formalities to deregister its business qualification, while the new business entity shall apply for the corresponding qualification over again.

经营单位投资主体发生变化的,原有经营单位应办理相应经营资格注销手续,新的经营单位应重新申办相应资格。

Results The elastic limit and the relevant enclasp force of the casting clasp made from the l 8-8 nickel-chromium alloy were smallest and those of the clasps made from the cobalt-chromium alloys in various brands were different.

结果 不同品牌的钴铬合金铸造卡环弹性极限及其相应卡抱力不同,18 8镍铬不锈钢铸造卡环的弹性极限及其相应卡抱力最低。

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推荐网络例句

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?