芳香的

The accumulation of asphaltene in the system depends on the physical structure of ...

在沥青质分子单元叠积过程中，由沥青质的杂原子因素、过渡金属因素、芳香环结构因素和脂肪性侧链因素共同决定的化学作用的影响是第一位的，其中芳香环结构因素和杂原子因素的影响最为显著，而由稠油体系不稳定性构成的物理作用的影响则居于次要地位。

Additionally, 75 volatile chemical constituents have been identified from the petroleum ether extracted part by capillary GC-MS, and the relative percentages of them are determined by GC method. The result showed that the volatile constituents of Musella lasiocarpa mainly includes advanced alkane, aliphatic acid and ester, aldehyde, ketone, aromatic and its heterocyclic compounds. With the compounds that have been isolated and identified from Musella lasiocarpa, the biogenensis pathway of new compound MT-3 is approached. Furthermore, the bacteriostasis of the 6 compounds to Escherichia coil, Pseudomonas aerusinosa, Bacillus megaterium, Sarcina lutea and Bacillus subtilic are determined by flat dilution method.

此外，从其石油醚萃取部分用毛细管色谱法分析鉴定出75种挥发性化学成分，并测定了各组分的相对百分含量，结果表明，地涌金莲挥发性化学成分以高级烷烃、高级脂肪酸酯及醛、酮、芳香和芳香杂环化合物为主；根据从地涌金莲中鉴出和分离得到的化合物，探讨了新结构化合物MT-3的生源代谢途径；采用平板稀释法测定了地涌金莲中六种化学成分对大肠杆菌、绿脓杆菌、巨大芽孢杆菌、藤黄八叠球菌和枯草芽孢杆菌的抑菌作用。

Seven species of Phellinidium were reported from China. Phellinidium fragrans from Changbaishan Nature Reserve, northeastern China is newly reported for China and is characterized by its resupinate and perennial basidiocarps with fragrant odour, smallest basidiospores in the genus, and the presence of conidia in the subiculum.

小木层孔菌属的种类在我国共有7种，其中芳香小木层孔菌Phellinidium fragrans为中国首次报道，该种发现于吉林省长白山自然保护区，与同属其它种的区别是子实体多年生、平伏、具有芳香气味，其担孢子在同属的种类中最小，菌肉中具有形状不规则的厚垣孢子。

The running buffer consists of 10 mmol/L tetraborate (pH 10.0) and 10 mmol/L β-CD. The applied voltage was 25 kV and the detection wavelength was 214 nm. The eight aromatic acids were completely separated and determined within 9 min. The linear relations were from 5 μg/mL to 120 μg/mL and their correlation coefficients were between 0.9967 and 0.9992. The method was rapid, simple and effective.

实验优化了分离测定条件，以pH 10.0的含有10 mmol/Lβ-环糊精的硼砂缓冲溶液(10 mmol/L)作为电泳缓冲液，工作电压25 kV，检测波长214 nm， 9 min内实现了8种芳香族羧酸的基线分离，芳香族羧酸在5~120μg/mL范围内呈良好的线性关系，其相关系数在0.9967到0.9992之间。

Base on the partition law of aromatic com pounds between oil and water,and the invers e liquid chromatography,some aroma tic compounds in 67samples with know n reservoir produced fluid property a re analyzed,and two geochemical dis criminating diagrams for reservoir produced fluid property are constructed.

利用芳香化合物在油水两相中的分配原理和反相液相色谱对芳香化合物的分离检测技术，测试了67块已知产液性质的储层样品，在此基础上，建立起了两张判别储层产液性质的地球化学图，其对油层、含水油层、含油水层及水层的综合对判率都在83%以上。

Such as,(1) Active Zincdust catalyzed the esterification reactions between benzoyl chloride and phenol or alcohol,which needed not solvent, warming and could fulfilled in a very short period (1-2min), andthe handling of the reaction mixtures was very simple. We believe it's the simplest and mosteconomic method for the synthesis of many aryl esters.

包括：(1)活性锌粉催化的酯化反应，在室温下即可反应，毋需溶剂，毋需加热，反应迅速(通常1—2分钟即可反应完全)，处理非常简便，相信目前是合成许多芳香酯最简便的方法，是一种值得加以推广的合成芳香酯的好方法。

Separation of racemic mixtures of thirty-eight secondary aromatic alcohols and arylethanediols with different substituting group was achieved with HPLC by using Chiralcel OD and Chiralcel LJ as chiral stationary phase and hexane/2-propanol mixtures of different ratios as eluents. The chromatographic parameters of these racemates on OD and OJ columns were examined.

在ChiralcelOD和ChiralcelOJ两支多糖类手性固定相上，以各种不同配比的正己烷-异丙醇为洗脱剂对38种带有不同取代基的芳香仲醇及芳香乙二醇类手性化合物的对映体进行拆分，考察了这些外消旋体在这两支手性柱上的色谱行为。

In order to accomplish this change, our research have made several important break-through by revising new formulation especially in (1) catalyst mix,(2) adjustment of water content,(3) addition of chain extenders and crosslinkers, and(4) utilization of long-chained polyols. By doing so, the general performances of our new non-yellowing foam products are comparable to those of the traditional TDI based products. In certain mechanical properties in areas such as tensile strength, split tear strength, and elongation our measured values of 1.89 kg/cm2, 1.47 kg/cm, and 355 % respectively have out-performed the old materials.

能在研究中突破的原因，是因针对聚胺酯发泡体配方中的催化剂、水含量、链长剂种类、交联剂及搭配商业之改质长链三元醇，做各式各样之配方调整而成，与传统商业用之芳香族发泡体相比较，基本的成泡指数及性质相比拟上已相近，在抗张(1.89 kg/cm2，比TDI系统增加2.2倍)、撕裂(1.47 kg/cm，比TDI系统增加1.7倍)、延伸率(355 %，比TDI系统增加1.6倍)等机械性质上甚至比芳香族发泡体有更佳的表现。

The result of the coupling reaction of aromatic aldehydes in Al-Na_2CO_3-MeOH and that in Al-NaOHMeOH with grinding were compared.

研究了超声波引发和研磨下Al Na2CO3MeOH体系中进行的一系列芳香醛的偶联反应，比较了研磨作用下Al Na2CO3MeOH和Al NaOH MeOH这2种体系中进行的一系列芳香醛偶联反应的结果

The effects of electronic and steric effect of substituted groups, the structure of chiral catalysts and chiral reagents and the reaction system on optical activity of products are summarized.

文章概述了芳香酮取代基的电子效应与空间效应、手性催化剂和手性试剂的结构、反应体系等对产物光学活性的影响，以及全细胞酶、分离酶等不同生物催化体系中芳香酮结构对产物光学活性的影响，并展望了不对称还原的研究及应用前景。

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。