氧族 的英文怎麼說

中文拼音 [yǎngzú]
氧族 英文
chalcogen
  • 氧 : 名詞[化學] （氣體元素） oxygen （o）
  • 族 : 名詞1 （家族） clan 2 （古代的一種酷刑） a death penalty in ancient china imposed on an offender ...
  1. In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking

    在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。
  2. The preparation, properties and application in powder coating of alicyclic epoxy resin and glycidyl ester of acrylic ( methy acrylic ) acid were discussed in this paper and some views and proposals to varieties development of ontdoor type ( weather resistance ) epoxy resin for powder coating were also presented

    摘要介紹了用於耐候脂環族環氧樹脂、丙烯酸（甲基丙烯酸）縮水甘油酯樹脂的制備方法、性能及在粉末塗料上的應用。
  3. In this paper the situation and development of electronic packaging and its requirments for the encapsulate materials in high properties were introduced and a novel kind alicyclic epoxy for electronic packaging was also reviewed with 13 refs

    摘要結合電子封裝的現狀、電子塑封材料的發展以及電子封裝對塑封材料提出的高性能要求，介紹了新型脂環族環氧樹脂及其作為塑封材料的應用前景，其包括耐熱型液體、含磷三官能團型、有機硅多官能團脂環族環氧樹脂。
  4. 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。
  5. Activation of rat liver microsomal glutathione s - transferase by chlorambucil and cyclophosphamide in vitro

    高糖對人腎小球系膜細胞過氧化物酶體增殖物激活受體家族表達的影響
  6. However, amphioxus ubf80 also showed some unique characters such as its amino acid residues at sites 39, 54, 63 and 74 in the cep. it appears that amphioxus not only represents an organism tr ansitional from invertebrates to vertebrates in phylogeny but also a possible diverged form radiated from the chordate ancestor at early chordate evolution. the possibility that some mutations in ub genes have taken place in different lines early at the divergence of plants and animals is also discussed

    發現文昌魚a二phi屍rxv基因是具有線粒體和過氧化物酶體信號特徵（ mitochondrialandperoxisomalsortingsignals ）的抗氧化物酶基因;通過序列比對，我們把屍rxv歸為l一cys和2一cys之外的3一cys類，從而把屍rx基因家族的兩種分類方法統一了起來。
  7. The results show that the chemosensor exhitits selective fluorescent quenching in the presence of aromatic organic acid in acetonitrile solution, and that the binding ability of the chemosensor with organic acid is in the order of p - cyanic - benzyl acid > p - chloric - benzyl acid > p - methoxyl - benzyl acid > benzyl acid

    結果表明，所合成的熒光分子在乙腈溶液中能選擇性識別芳香族有機酸，表現出熒光淬滅現象，其與有機酸絡合能力的大小依次為：對氰基苯甲酸對氯苯甲酸對甲氧基苯甲酸苯甲酸。
  8. 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。
  9. Oxygen group oxygen, sulfur, selenium, and tellurium

    氧族元素氧
  10. Comparison of the serum estradiol and nitric oxide levels in coronary heart disease of postmenopausal women between han and uigur

    維吾爾族女性絕經后冠心病患者雌激素水平與一氧化氮含量的對照研究
  11. Vulnerable to oxidation and turns red. possesses properties of both aromatic acid and amine

    2 ）易氧化成紅色，同時具有芳香族酸類及胺的性質。
  12. It ' s a two - components, polyamide cured epoxy coal tar coating. film fades in aliphatic solvents

    雙組份聚酰胺固化的環氧煤焦油塗料。在脂肪族溶劑中漆膜會引起褪色。
  13. In thl1 gene, there are some famililar enzyme digest sites including bamh i, hind, sac i and sal i. the sequence of thl1l from brassica oleracea l. shows 99 % identity to the sequence of thll from brassica napus l. there are some phosphorylation sites and an active site of thoiredoxin h members consisting of cppc in thll protein

    甘藍和油菜thl1基因序列有5個堿基的差異，而氨基酸僅有2個氨基酸的變異，同源性達99 。在thl1蛋白的氨基酸序列中發現了一個硫氧還蛋白家族的活性位點（ cppc ）和多個磷酸化位點。
  14. So it has increasing commercial demand. escherichia coli and many other microoganism synthesize aromatic amino acids through the condensation reaction between phosphoenolpyru vate ( pep ) and erythrose - 4 - phosphate ( e4p ) to form 3 - deoxy - d - arabinohep tulosonate 7 - phosphate ( dahp ). pep and e4p are limiting substrates for formation of dahp

    大腸桿菌和許多微生物一樣，其合成芳香族氨基酸的起始物是由磷酸烯醇式丙酮酸（ pep ）和4 -磷酸赤癬糖（ e4p ）二者縮合形成的3 -脫氧- -阿拉伯庚酮糖酸- 7 -磷酸（ dahp ） 。
  15. He had short time training course in university of vrije of brussels and nih on homeobox gene lim family study. main fields : neural protection and regeneration. special research interests : neurotrophic factors

    近年來，著重於1神經營養因子2同源盒基因lim家族3低氧等所致腦損傷機制及其干預措施4神經肌肉乾細胞發育分化與組織工程等方面的研究。
  16. 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。
  17. The polyglot nature of the times ' front page warnings ? in english, spanish, chinese, vietnamese, somali and russian ? reflects not only the ethnic diversity in the area, but also the fact that people in immigrant communities appear to have been especially struck by the outages and in the attendant wave of carbon monoxide poisonings

    西雅圖時報頭版的警告數種語言並陳，包括英文、西班牙文、中文、越南文、索馬利亞文和俄文，不只反映西雅圖地區種族多元化，同時也凸顯一項事實，那就是移民社區的住民似乎首當其沖，受到停電沖擊，及隨之而來的一波一氧化碳中毒潮。
  18. We cloned two ent - kaurene oxidase homologues from the reverse transcriptional products of different strawberry tissue, the identity of these two homologues is 88. 2 %. it suggest us that it belongs to a gene family. 3

    在豐香草莓的不同發育部位克隆到同源性為88 . 2的兩個貝殼杉烯氧化酶的基因片段，預示著此基因是個基因家族。
  19. Immersion service in aromatic or ketone solvents and strong oxidizing acids

    不宜在芳香族和酮類溶劑以及強氧化性酸的浸泡環境中使用。
  20. 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。
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