查询词典 hydroxy-acetone

Frictional experiments using a self-designed "multifunction servo friction and abrasion experiment machine" with the multi-parameter synchronous data collection system and online data processing software have been made on six types of rocks. The analyses of the experiments results indicate that earthquake faults with large displacement bring up a series of products continually changing from cataclasis to melting. The rocks contained mafic minerals are easier to melt and the gas bubbles in melting products proved the hydroxy water from the minerals has participated the rock melting process and decreased the melting point of the rock. Frictional melting is more sensitive to speed than normal stress. The temperature sharply increases at about 40℃/sec when the sample enters the earthquake fault state. While the melting happens, torsion decreases instantly and there is perhaps a "blind region" of normal stress.

利用自行设计加工的&多功能伺服摩擦磨损实验机&，及多参数同步数据采集系统和联机数据处理软件，对六类岩石进行的实验和分析成果表明：大位移地震断层作用形成了与滑动速率有关的从碎裂到熔融连续变化的系列产物；含镁铁质矿物的岩石更容易熔融，熔融产物中出现的气泡证实了矿物羟基水很可能参与了岩石的熔融过程并降低岩石熔点；相对于正应力而言摩擦熔融程度对速度变化更加敏感；此外，进入地震断层状态时温度急剧上升达～40℃/秒；伴随熔融发生出现扭矩骤减时，可能存在一个短暂的正应力&盲区&。

This Sm-catalyzed reaction firstly efficiently realized the catalytic cycle in the tandem rearrangement/reduction reaction of α-hydroxy epoxides, and moreover the diastereoselective amplification could be distinctly observed when two C1 epimers in substrate were subjected to this catalytic tandem reaction.

该催化的多功能串联反应，高度非对映选择性地一步控制了含有季碳的三个相邻立体中心，有效地构建了&2-季碳1，3-二醇&结构单元，首次实现了此类重排—还原过程的催化循环，其中对于两个C1位的差向异构体底物，此反应具有明显的非对映选择性放大特点。

The equalising complex is comprised of a unique bio-polymer with a high affinity for both oil and water with a natural b-hydroxy acid in the form of willow bark extract.

均衡保湿复合物由独特的生物高聚体组成，高度亲水亲油，并以柳皮精华的形式添加天然b-氢氧酸。

A reverse-phase high performance liquid chromatographic method with C18 Hypersil ODS column for the simultaneous determination of hydroxy acids including lactobionic acid,glycollic acid,tartaric acid,lactic acid,malic acid and citric acid in cosmetics,was studied.

采用反相高效液相色谱法同时测定化妆品中乳糖酸、乙醇酸、酒石酸、乳酸、柠檬酸和苹果酸等6种羟基酸。

The thermal behavious and structure of p(hydroxybenzoic acid/2-hydroxy-6-naphthoicacid)polyarylate /polyester blend fibers were investigated by means of DSC thermal analysis.

利用热分析的方法对聚（对羟基苯甲酸／6－羟基－2－甲酸萘［p（HBA／HNA］／聚对苯二甲酸乙二酯共混纤维的结构进行了研究。

All these compounds contain hydroxy groups and can be used as hydrophilic chain-extenders in the synthesis of cationic polyurethane ionomers.

这些化合物（或与含三羟基的化合物配合使用），可以作为季铵阳离子型聚氨酯离聚物的扩链剂。

As open-chain hydroxy aldehydes and hydroxyl ketenes, the monosaccharides are very reactive.

以开链的羟基醛和羟基酮形式存在的单糖非常活泼。

A new alkaloid named Mequinine (1) was isolated from Meconopsis quintuplinervia Regel,its structure was elucidated as 1,2, 8,10, 11-pentamethoxy-3-hydroxy-12-hydroxymethylberberine by spectroscopic means.

从藏药五脉绿绒蒿中分离出—微量生物碱成分，通过光谱方法并与同类化合物比较，鉴定为1，2，8，10，11-五甲氧基，3-羟基-12-羟甲基原小檗碱，命名为脉奎宁。

Examples of metal chelating groups include hydroxides especially aryl or heteroaryl hydroxides such as phenolic hydroxides; amines which may be aliphatic aryl or heteroaryl; mercaptans which may be aliphatic aryl or heteroaryl; carboxylic acids which may be aliphatic aryl or heteroaryl; oximes and ketoximines; acetarylamides; hydroxy silanes and silicones; N-containing heterocycles such as imidazoles benzimidazoles triazoles benzotriazoles thiazoles isothiazoles acid anhydrides and more preferably acid groups (especially carboxylic acid groups phosphoric acid groups polyphosphoric acid groups phosphonic acid groups sulphuric acid groups and sulphonic acid groups).

金属螯合组的例子包括氢氧化物，特别是芳基或如酚醛氢氧化物杂氢氧化物；胺可能是脂肪族，芳基或杂；硫醇可能是脂肪族，芳基或杂，这可能是脂肪族，芳基或羧酸杂；肟和ketoximines； acetarylamides；羟基硅烷和有机硅，含N，如咪唑，苯并咪唑类，三唑类，苯并三氮唑，噻唑类，isothiazoles，酸酐杂环，多最好酸组（特别是羧酸团体，磷酸，团体，多聚酸组，膦酸组，硫酸团体和磺酸组）。

The positive peptide cleavage promoted by complex, CuⅡL and the negative response of CuⅡ/dien complex suggest the merely hydroxy pendant in complex have no ability to attack the peptide bond. The synergic carbonyl activation by metal coordination is essential for the cleavage of peptide bond promoted by CuⅡL.

比较相应铜配合物及二乙烯三胺铜配合物的切割性能，提示羟乙基侧臂单独难以实现相邻肽键的切割，高配位数金属中心对肽键羰基的活化与羟基的协同进攻是该类配合物切割多肽的可能机制。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。