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With the fermenting very well,and improve Ethy1 caproate content by 500~800mg/L,and improve liquor quality by 2~3fens,and make the base liquor's characteristics of Luzhou-flavor liquor very well,Especially the additi.

在转型期间,添加活性干酵母和糖化酶,可以大大缩短转型期,在生产中添加活性干酵母,可以使主发酵期缩短2~5d,糟醅发酵更彻底,出酒率平均提高3.33%,同时,使酒中己酸乙酯平均提高500~800mg/L,酒质提2~3分,基酒具有很突出的浓香型主体香特征,特别是在度夏醅中使用,可以降低酒醅中的酸度,有效地防止掉排现象。

Using completely PVD method, successively depositing doffing pellicle twain anhydride and diamine on the polishing glass substrate in the high vacuum environment, and then processing heat treatment in proper surrounding temperature., make sure twain anhydride and diamine form polymeric amic acid, and more ring-imidization.

采用全物理气相沉积方法,在高真空环境中将脱膜剂、二酐和二胺先后沉积于抛光的玻璃衬底上,然后在适当的环境温度中进行热处理,使二酐和二胺形成聚胺酸,并进一步环亚胺化。

Highly selective acylation at C-5 of indole was realized and a new method was established in the synthesis of TIMs.

采用三氟乙酰基作为吲哚C-3的保护基团,在路易酸催化下使吲哚的酰化反应高选择性地发生在5-位。

Straw application, whether straw mulch or incorporated straw with soil, increased the content of soil labile organic carbon and incorporated straw with soil as more beneficial to the increase of the contents of hot water-extractable carbon, potentially mineralizable carbon acid-extractable carbon, readily oxidizable carbon, particulate organic carbon, and light fraction organic carbon.

表施秸秆和混施秸秆均能使土壤活性有机碳含量增加或显著增加,混施秸秆较表施秸秆更有利于热水提取态碳、可矿化碳、酸提取态碳、易氧化态碳、颗粒有机碳和轻组有机碳含量增加,而可溶性有机碳和微生物生物量碳的变化与秸秆施用方式关系不大。

The purpose of the present work is to study the solid lipid nanoparticles encapsulation with ascorbyl palmitate.

本研究是利用固体脂质包覆将维生素C棕榈酸脂使其粒子奈米化,并评估其物理及化学安定性。

Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.

着重介绍用过氧化氢和过氧化羧酸作羟基化剂,使苯酚羟基化生成邻苯二酚和对苯二酚的研究开发进展。

Proton acids were produced as intermediates and make quinoline occur in the form of its conjugated acid.

由于中间产物质子酸的生成,使喹啉以质子化的形式存在,当质子化产生的吸收增加与降解导致的吸收减少相等时,特征吸收峰313 nm处的吸收在1~3 min会出现平台,然后持续衰减。

With the reduction toward maleness or femaleness of cucumber by treatmentswith exogenous GA3 or ethrel,the endogenous levels of ethylene,ACC,GA1-3,ABAand EFE activity all changed.

利用外源GA3和乙烯利处理黄瓜,使性别表达雄性化或雌性化的同时,其内源乙烯,ACC,GA1-3和脱落酸,以及乙烯形成酶活性均发生了变化。

The dissertation mainly consists of two parts:1. The Reaction Chemistry of Alkynes under Palladium Catalysis Part 1 studies the reaction α,β-unsaturated carbonyl compounds with alkenylpalladium intermediate generated by nucleopalladation, and discovered 1 the Pd-catalyzed tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls,2 the four-component tandem addition reaction of halides, alkynes and α,β-unsaturated carbonyls, 3 the tandem intramolecular oxypalladation-conjugate additionreaction of alkynoic acids with α,β-enals. These new reactions provide notonly efficient highly stereoselective methods for the synthesis of γ,δ-unsaturated,polyunsaturated carbonyl compounds and γ-lactonic aldehydes, but also thebasic transformations for a number of C-C bond formation reactions which can be usedto design synthesis of many acyclic, cyclic or polycyclic compounds.

本论文的主要工作分为两个部分:一、钯催化下炔烃的反应化学在本小组前人工作的基础上,我们详细研究了炔烃亲核钯化产生的烯基钯中间体与α,β-不饱和羰基化合物的反应,发现两价钯催化下卤离子-炔烃-α,β-不饱和醛酮的串联加成反应、卤离子-炔烃-α,β-不饱和醛酮的西组分串联加成及炔酸分子内氧钯化-串联Michael型加成反应;由此发展了γ,δ-不饱和醛酮、多不饱和羰基化合物和带有醛酮基侧链的γ-丁内酯衍生物的高立体选择性合成方法,这一过量卤离子存在下的烯基钯对α,β-不饱和羰基化合物共轭加成反应的发现,为大量碳-碳键形成反应的实现提供了基础,使我们能够从这一基本反应出发,设计和开发多种分子内、分子间的碳碳成键反应,以好的立体、区域选择性组建开链、环状及多环类型的化合物。

Treatment of the diacetoxy-calix [4] arene with a series of ditosylates in dry MeCN in the presence of NaOH resulted in formation of electron-rich calix [4] areneocrowns, which reacted with 4, 4'-bipyrindinium and p-bis -benzene at room temperature in dry MeCN to afford self-assembling [2] catenanes by π-π stacking interaction.

以杯[4]芳烃为原料,通过三氟乙酸铊将其氧化成醌,醌类化合物在Zn粉、冰醋酸、少量盐酸和过量的乙酸酐中反应得到双乙酰化产物,利用氢氧化钠使其水解,然后再与各种对甲苯磺酸二酯进行环化反应,得到一系列具有富电子空腔的杯[4]芳烃并冠醚。

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