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The quality of cis-pinane synthesized from α-pinene by catalytic hydrogenation effects its post-products' yields and qualities.

以蒎烯为原料合成各种萜烯香料受到国内外香料界的普通重视，α-蒎烯催化氢化合成的顺式蒎烷的品位直接影响到后续产品的收率和质量。

Hydroxylcarveol(3) and its ester derivatives were synthesized from α-pinene(1), and their structures had been identified by IR, MS, 1H NMR and 13C NMR analysis.

以α-蒎烯(1)为原料，合成了8-羟基别二氢葛缕醇(3)及其甲酸酯(4)、乙酸酯(5)和丙酸酯(6)，并用IR、MS、1H NMR及13C NMR分析对它们的结构进行了表征。

Methods Benzhydrylpiperazine was synthesized by condensation of chlorodiphenylmethane and anhydrous piperazine in absolute ethanol.

以二苯甲基氯和无水哌嗪为原料，无水乙醇做溶剂，两者经缩合制得二苯甲基哌嗪。

Aim According to the targets of 5-HT transporter and 5-HT2A receptor, a series of N -indolalkyl piperidine derivatives and their analogues were synthesized and tested for their biological activities.

摘要摘 要：目的以5-羟色胺转运体和5-HT2A受体为靶点，设计合成 N -吲哚烷基哌啶类化合物及其类似物，研究它们的体内外生物活性。

Under the protection of purified water-free, oxygen-free argon, using Schlenk technique, the rare rarth organometallic complexes containing piperonal dimethyl acetal and dicyclopentadienyl and involving silylene-bridged fluorenyl have been synthesized.

合成了含胡椒醛二甲基缩醛基和二茂基稀土金属有机配合物。采用Schlenk技术，在干燥纯氩气保护下进行。将溴代胡椒醛二甲基缩醛基锂盐与二茂基一氯稀土（Ln：Yb，Dy，Pr，La，Sm）反应，形成5个新的文献未曾报道的稀土金属有机配合物。

In the current study, a series of cationic α-helical peptides of 20 a.a. were designed and synthesized based on four structural parameters, including charge, polar angle, hydrophobicity, and hydrophobic moment. Several methods were performed to describe the influence of these parameters on the antimicrobial and hemolytic activity, and on the permeabilizing effect on model membranes. The potential of these parameters to increase the antibacterial activity and to improve the prokaryotic selectivity is assessed.

本实验利用自行设计合成的人工抗菌胜肽当模型，固定长度为 20 个胺基酸，改变其电荷、极性角度、疏水性及疏水性矩等四种结构特性，并利用其对各种不同病原菌之抗菌活性及对兔子红血球细胞的溶血活性来研究其结构特性的改变对其抗菌活性、选择性及微脂体膜的渗透性之影响，以期望改变结构参数能增加抗菌活性及对原核的选择性。

The device attaches the synthesized single walled carbon nanotube to the inner surface of the spherical crown shape graphite polar plate in the form of large area (100 to 200 square centimeters) film.

本发明使合成的单壁碳纳米管，能够以大面积(100～200cm 2 )薄膜的形式均匀附着于阴极球冠石墨极板的内表面上。

This part we introduce complexes synthesized by hydrothermal method containing inorganic polyacid, bipyrindine, organic polyacid, pyridine-carboyxlate, and mixed polyacid and polybase ligands.

我们分类介绍了，水热条件下合成的含无机的同多或杂多酸配体、联吡啶、有机多酸、吡啶羧酸和混合酸碱配体的配位化合物。

Sorbitol is the main polyalcohol synthesized in the leaves of apple trees and converted into sugars in the fruit.

山梨醇在苹果树的叶子里是主要的多元醇，进而在果实中转化为糖。

The results indicated that:The multi\|locus DNA fingerprint with a new synthesized probe\|JL\|02,has enough polymerism and good stability,and should be very useful to monitor the chimerism in different tissues of ES cell chimeric mouse and to check whether an ES cell line has the capacity to enter the germ line,especially when involving strains that can not be discerned with coat color or biochemical markers.

结果表明：采用新型的人工合成的寡核苷酸多聚体探针(JL-02探针)的多位点DNA指纹图谱，具有足够的多态性和很好的稳定性。适用于鉴定ES细胞在嵌合体小鼠各种组织器官中的嵌合情况，也适用于鉴定ES细胞是否具有种系嵌合能力，尤其适用于在嵌合体研究中，最适宜的品种组合具有相同的毛色或相同的酶型。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失