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ABSTRACT In this dissertation, the alkylation process of isobutane with butene over β zeolite were studied, which includes the characteris...

本文主要研究了不同方法改性的β沸石催化剂在超临界条件下异丁烷和丁烯的烷基化反应规律，并与气相、液相条件下的反应结果进行了比较。

Raney nickel catalyst was used in hydrogenation of the turpentine and c-pinane,t-pinane,camphene and isocamphane and some other monoterpane s were determined.

用雷尼镍为催化剂对松节油进行了加氢实验，获得顺蒎烷、反蒎烷、莰烷、异莰烷等单萜烷类化合物，采用气相色谱"反吹、微流控"技术的色谱-质谱分析方法，测得了它们的保留时间和质谱图，为进一步研究原油或抽提物轻馏分中单萜烷类化合物的地球化学意义提供了一些基础性数据。

The results showed that the first canonical correlation coefficient between aldehydes, ketones, esters and the total quantity of each kind of ingredient and smoking quality achieved 5 % or 1 % remarkable level. And their correlation depended mainly in the correlation between phenylacetaldehyde, furfural, megastigmatrienone-1, megastigmatrienone-3, geranylacetone,β-damascenone, keto-isophorone, dihydroactinidiolide and smoking quality.

结果表明：醛类成分、酮类成分、酯类成分与香气质、香气量的第一典型相关系数达到5%或1%显著水平，各类成分总量与香气质、香气量的第一典型相关系数达到1%极显著水平，其相关关系主要表现在苯乙醛、糠醛、巨豆三烯酮1、巨豆三烯酮3、香叶基丙酮、β-大马酮、氧化异佛尔酮、二氢猕猴桃内酯等成分与香气质、香气量的相关上。

Effect of heat treatment on the ndcrophase separation of a segmented poly copolymer based on poly diol, 3, 5 dithyltoluene diandne and 4,4'-diphenylmethane diisocyanate has been studied bymeans of fourier transform infrared spectroscopy.

用傅里叶变换红外光谱方法研究了热处理对由聚环氧丙烷聚醚多元醇、3.5－二乙基甲苯二胺和4，4－二苯基甲烷二异氰酸酯组成的多嵌段聚氨酯脲的微相分离行为的影响。

It keeps the same when the hypocenter location deviates from the center of the slab.

发现当俯冲板块中存在6%的低速异常时，直达P波和直达S波之间存在波阵面近平面的易于识别的P-S转换震相，其传播方向不因震源位置偏离低速层的中心而改变。

Applying MDI ,thc bond strength of plywood achieve national standard when the moisture content of Populus simoniicarr and Liquidambar formosana Hancemoisture are 12% and 20%.With same material and technics ,bond strength of parallel lay-up is higher than upright lay-up.

而当采用异氰酸酯做胶粘剂时，杨木胶合板的含水率在12%，枫木胶合板在含水率20%时达到国家标准要求；⑤材料和工艺相同时，顺纹组坯时的胶合强度高于垂直纹理组坯时的胶合强度。

And phototrophic microalgae Pavlova viridis with high level of EPA and DHA were fused by chemical cell fusion technique, and a fused strain of mixotrophic microalgae with high level of EPA and DHA and fast growing rate was selected.

利用细胞融合技术，将富含EPA和DHA的自养微藻绿色巴夫藻和生长迅速的异养微藻四鞭藻相融合，并筛选出兼养的融合藻株。

The PGE distributive patterns are the PtPd type, the Pt/Pd ratios of 0.32-0.68 are between the values of enriched sulfide tholeiite (0.38) and primitive upper mantle (1.36), and the similarity of partition patterns of chondritenormalized REE, MORB-normalized trace element and primitive mantle normalized PGE for the rocks of the three phase zones, indicate the Baimazhai intrusive body I formed by the evolution, liquation, intrusion and diagenesismetallogenesis of basaltic magma.

铂族元素配分模式为Pt-Pd型，w/w比值为0.32~0.68，介于富硫化物拉斑玄武岩(0.38)和原始上地幔(1.36)之间，以及稀土元素配分模式、微量元素蛛网图和铂族元素配分模式中不同岩石配分曲线的相似性揭示3个相带不同岩石之间的高度一致性，展示基性-超基性岩形成于玄武质岩浆演化、熔离及岩浆一次性侵入、分异成岩成矿的特征。

Subsequently, 3-(substituted-phenyl)isoxa- zole-5-methylamino-4(3H)-quinazoline derivatives 6a～6e were obtained by solid-grinding 5a～5e and 4 under the basic Al2O3 at room temperature.

4与5a～5e在碱性氧化铝作用下固相研磨合成了5种未见文献报道的新型的含异噁唑环的喹唑啉衍生物6a～6e。

For determination the content of isomaltooligosaccharide in beverage, a high performance liquid chromatography method was established by using 300 mm×4 6 mm, 5 μm Hypersil NH 2 column, acetonitrile+water=78+22 as mobile phase, detector was diffeential refractometer with 40℃ internal temprature.

为测定饮料中异麦芽低聚糖的含量，建立了使用 30 0mm× 4 6mm ，5 μmHypersil NH2 柱，乙腈+水=78+ 2 2为流动相，内部温度为 4 0℃的示差检测器的高效液相色谱法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。