氧族化合物 的英文怎麼說
中文拼音 [yǎngzúhuàgěwù]
氧族化合物
英文
chalcogenide-
Direct alkoxylation of aromatic compounds is virtually unknown.
事實上還不知道芳香族化合物的直接烷氧基化的方法。Uses : used as desizing agent and bleach activator ； used in the oxidation and degradation of waste materials in pools and the closed and circling water ； used in modification of starch, production of bonds and coating materials ； used in the oxidation of alcohol and linalool ； used as an essential component of bleaching formulations for hair cosmetics
用途：用於脫漿劑和漂白活性劑；用於水池及封閉循環處理水中有害物質的氧化降解；是生產澱粉的調節劑，並應用於粘合劑的塗料生產中；用於支鏈氧化、乙醇和芳香族羥基氧化；染發劑的基本成分之一，起脫色作用。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶（ 4 - dimethylaminopyridine ， dmap ） ，採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物，並進行了化學結構和液晶性能的表徵。Besides, scan rate and cycle period also affect the result ; co - deposition of dualistic oxide is a focus of research, as an element in the same group, ir is selected. deposition rate of composition is decreased by the adding of ir composition, and when the proportion of ir exceeded 50 %, composition procession can be ceased. but cooperation of ir and ru oxide can highly increase the specific capacitance of active material ; annealing treatment under a certain temperature can help to change the hydrate ru composition into mixture state ru oxide, accordingly increase the stabilization of active material
研究表明:電解液的配製過程中，氯化釕濃度、溶液ph值、陳化時間、溶液溫度對電鍍效果均有影響，其中溶液ph值是最主要的影響因素;在儀器的使用條件探索中，理論結合實驗確定了本電鍍液體系循環伏安電勢窗的理想范圍，並發現循環伏安掃描速度和掃描周期對電鍍結果也有較大影響;混合氧化物的共沉澱是目前研究熱點，在此選用與釕同一族的銥作為共沉澱元素，銥的加入會阻礙氧化物的沉積速度，銥的比例超過50 %會使沉積作用停止，但是二元氧化物的協同作用使沉積的活性物質比容量大大提高;一定溫度下退火后處理作用會使水合釕化物轉變成混合價態的氧化釕，從而提高活性物質的穩定性。The results showed that in scco2 cyclotrimerization of terminal acetylenes was carried out smoothly to regioselectively afford the corresponding benzene derivaties using pdbr2 as the catalyst
研究結果表明：二氧化碳介質中使用溴化鈀為催化劑可以順利地催化炔烴發生環三聚反應，區域選擇性生成含苯環芳香族化合物。It will melt in a certain range of melting points, but it has no definite melting point. soft pitch has no thermal effect when solidified
瀝青組分極為復雜，大多數為三環以上的芳香族烴類，還有含氧、氮和硫等元素的雜環化合物和少量高分子炭素物質。On the other hand, the expression is repressed by the proto - oncogenes n - myc and c - myc, and in some cases the expression is also repressed by testosterone or dihydrotestosterone ( androgen ) at mrna level infering from all the references that can be obtained, the functions of ndrg family may be involved in cellular differentiation events > maintaining the balance of cell redox potential ( in oxidative stress condition or biological conversion process ), or counteracting cell malignant transformation, and so on
綜合己有的文獻，推測ndrg家族可能參與細胞生長分化、維持細胞氧化還原電勢平衡（氧化應激或生物轉化） 、阻止腫瘤細胞惡化等。因此，研究其在細胞中的具體功能以及可能的信號通路將具有非常重要的意義。深人研究ndrgz在體內的組織細胞和亞細胞水平分佈特點及其功能，需要高效價和高特異性的ndrgz抗體。分享友人