catalysis是什么意思,catalysis中文翻譯,catalysis發(fā)音、用法及例句
?catalysis
catalysis發(fā)音
英:[k?'t?l?s?s] 美:[k??t?l?s?s]
英: 美:
catalysis中文意思翻譯
n.催化作用
catalysis詞形變化
名詞復數: catalyses |
catalysis常見(jiàn)例句
1 、Application areas include nanoscale science, quantum photochemistry, combustion, biochemistry, catalysis, and atmospheric and environmental chemistry.───例如:我們把含時(shí)波包方法用于研究化學(xué)反應的非絕熱過(guò)程,并發(fā)展非絕熱過(guò)程勢能面的計算和擬合方法。
2 、Endo and exo cycloaddition products (15)( 16) were obtained when (14) was cyclized by the catalysis of BF_3.Et_2Oat room temperature.───Lewis acid(BF3.Et2O)催化化合物(14)進(jìn)行IMDA反應,分離得到endo和exo兩種環(huán)合產(chǎn)物,(15)和(16);
3 、Have probed into the dynamics parameter of the catalysis promoter.───探討了催化反應的動(dòng)力學(xué)參數。
4 、Indcating effective suppression of trimethylamine(TMA) format ion over the zeolites, which is due to the shape selective catalysis of zeolites.───對三甲胺表現出明顯的抑制效應可歸結于沸石的擇形催化效應。
5 、The Ipatieff Laboratory was created and research activities in catalysis and related surface science have expanded.───催化和表面科學(xué)中心,其生產(chǎn)和研究活動(dòng)在催化和相關(guān)表面科學(xué)。
6 、The market should be very good, wanting bud seedling food only is natural, did not pass catalysis of what chemistry material.───市場(chǎng)應該很好的,只要芽苗菜是天然的,沒(méi)有經(jīng)過(guò)什么化學(xué)物質(zhì)催化。
7 、Catalysis And Reaction Engineering Division. (2 Vols)(Presentations At The 2007 Aiche Annual Meeting)/ Held 4-9 November 2007, Salt Lake City, Utah.───2007年催化和反應工程分會(huì )文集(2卷集)(在2007年美國化學(xué)工程師學(xué)會(huì )年會(huì )的演示)
8 、The Society is an affiliation of 13 local Catalysis Clubs and Societies in North America.───此團體有13個(gè)地方性觸媒俱樂(lè )部與北美協(xié)會(huì )的加入。
9 、The FBS (fluorous biphase system ) makes homogeneous catalysis and heterogeneous separation possible and easy to separate the catalysts dissolved in PFC (perfluo rocarbons).───氟兩相體系實(shí)現了均相催化多相化, 可以方便地分離溶解在PFC 中的催化劑。
10 、The mathematical model of the steam reforming catalysis reaction on TBC-EBC is established.───同時(shí),建立了催化/熱障功能梯度涂層的水蒸氣重整催化性能數學(xué)模型。
11 、In this paper, the latest advances in the application of silicoaluminophosphate (SAPO) molecular sieves to isomeric catalysis are reviewed.───摘要介紹了SAPO分子篩在烯烴異構、烷烴異構、芳烴異構、異構脫蠟等化工過(guò)程的最新應用;
12 、Knowledge in the fields of petrol chemistry, chemical engineering, catalysis, etc.───具有石化,化工,尤其是催化等領(lǐng)域的專(zhuān)業(yè)知識,熟悉相關(guān)的行業(yè)信息。
13 、Harness supramolecular constructs to preserve the integrity of chemically labile species while conserving sites for the catalysis of cheical reactions including product release.───利用超分子結構維持化學(xué)不穩定物質(zhì)的完整性。同時(shí)保存包含產(chǎn)物釋放的化學(xué)反應中的催化位點(diǎn)
14 、The catalysis effect was compared with acetate zinc and the caralysis mechanism of PET depolymerization were analyzed preliminarily.───比較未負載活性炭醋酸鋅的催化效果,初步探討催化機理。
15 、Under the catalysis of sodium hydroxide solution,TBA epoxy resin was prepared by stepwise polymerization by use of tetrabromobisphenol A(TBA) and epichlorohydrin(ECH).───TBA與環(huán)氧氯丙烷(EHC)在氫氧化鈉溶液的作用下,通過(guò)逐步聚合得到TBA型環(huán)氧樹(shù)脂;
16 、The FBS (fluorous biphase system) makes homogeneous catalysis and heterogeneous separation possible and easy to separate the catalysts dissolved in PFC (perfluorocarbons).───氟兩相體系實(shí)現了均相催化多相化,可以方便地分離溶解在PFC中的催化劑。
17 、CeO2 and ZnO both are important oxides, they have broad applications in field such as catalysis, ceramics, superconductor, and gas sensor.───將納米催化劑應用于甲烷二氧化碳氧化偶聯(lián)反應就成為很具潛力的研究方向。
18 、Non-silicated metal oxides and sulphides are expected to show potential uses in many fields such as catalysis, optics, electricity and gas sensors.───摘要非矽組成的介孔金屬氧化物和硫化物半導體材料在光、電、催化和傳感等諸多領(lǐng)域展示了獨特的應用前景。
19 、Catalysis may be either homogeneous or heterogeneous.───催化可以是均相的,也可以是多相的。
20 、Additionally, its development on biomolecule templated materialtowards enzyme-like catalysis in the up-coming years were also summerized.───對金屬配位化合物在模擬催化方面的研究進(jìn)展作了概述。
21 、Catalysis has increased the rate of reaction.───催化作用提高了反應的速度。
22 、HQ and H_2O_2 as the substrates of MPO, passed through the cellmembrane and reacted under the catalysis of intracellular MPO, and the products, BQ and H2O, were formed.───當溶液中加入MPO的底物(HQ和H_2O_2)后,它們可以**細胞內MPO的表面,并在MPO的催化下發(fā)生反應生成BQ和水。
23 、The advances in application of chiral 2, 2'-binaphthol phosphonite (phosphite, phosphoramidite) in the asymmetric catalysis has been reviewed.───摘要本文綜述了手性亞膦(**)酸聯(lián)二萘酚酯及手性亞膦(**)酸聯(lián)二萘酚胺酯配體在不對稱(chēng)催化應用中的最新進(jìn)展。
24 、Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides.───催化作用:開(kāi)發(fā)新型手性金屬催化烯類(lèi)及硫醚類(lèi)之對映選擇性氧化。
25 、With its particular structure and excellent function, mineral material taking mineral as basis has been widely used in the field of catalysis.───摘要礦物材料是以礦物為主要或重要組分的材料,以其特殊的結構和優(yōu)異的性能被廣泛應用于催化領(lǐng)域。
26 、A multifunction-debinding furnace is designed, which can be used in catalysis debinding, solvent debinding, condensation evapour debinding and siphonage debinding.───本文設計了一種可用于多種脫脂工藝的多功能脫脂爐,包括催化、溶劑、冷凝蒸汽和虹吸脫脂。
27 、To modify, especially to increase, the rate of(a chemical reaction) by catalysis.───催化通過(guò)催化劑來(lái)改變尤指加快(一個(gè)化學(xué)反應)的速度
28 、In specific acid catalysis, the undissociated acids do not contribute.───在特殊的酸催化中,不離解的酸不起作用。
29 、Furthermore, samples, as catalysis, were used to degrade simulation dye effluents, such as solutions of Acid Red G, Direct Bordeaux, Direct Red and Methylene Blue.───同時(shí)以酸性紅G、直接棗紅和直接大紅(直接染料)及亞甲基藍為對象模擬染料廢水進(jìn)行催化降解實(shí)驗。
30 、The research progress on sources,catalysis mechanism,application and study level of the enzymes with acitivity on naringenin is reviewed.───本文綜述了在植物中部分對柚皮素具有活性的酶的來(lái)源、作用機理、應用情況及研究水平。
31 、Kirchner G, Scollar M P, Klicanov A M. Resolution of racemic mixture vialipse catalysis in organic solvents [J].J. AM. Chem. soc., 1986,107:7072.───朱全紅,鄧芹英,曾隴梅.手性藥物的薄層色譜拆分[J].藥物分析雜志,2002,22(2):155.
32 、Seven new cinnamoyl substituted hydrazide compounds were synthesized by reaction of cinnamyl chloride with different hydrazides under phase transfer catalysis condition.───摘要利用相轉移催化法,由肉桂酰氯與取代單酰肼反應,得到7種肉桂酰取代酰肼類(lèi)化合物;
33 、The effect of sound field on the catalysis activity and the molecular conformation of protease was discussed.───本文綜述了聲場(chǎng)對蛋白酶催化活力及分子構象的影響。
34 、Abstract: This paper discussed the recent progress in the field of sonocatalysis,including homogenous catalysis and hetergeneous catalysis.───文摘:綜述了近幾十年來(lái)超聲在催化反應領(lǐng)域中的研究成果,包括超聲在均相和多相催化反應中的應用。
35 、The method is based on the catalysis of rutin to the discoloring reaction of butyl rhodamine B oxidized by potassium periodate solution.───在氫氧化鈉介質(zhì)中,微量蘆丁對高碘酸鉀氧化丁基羅丹明B褪色反應有明顯的催化作用,據此建立了測定蘆丁含量的催化動(dòng)力學(xué)光度法。
36 、A novel catalysis kinetics fluorimetry is established for indirectly detemining phthalate esters(PAES) in cosmetical samples.───日化品中鄰苯二甲酸酯PAES含量的測定對于保護人體健康具有重要作用。
37 、This paper introduces four theories about the antibacterial mechanism of silver: sterilization by static adsorption, ion exudation, light catalysis, and complex function.───摘要介紹銀的抗菌機理的4種理論:靜電吸附殺菌、金屬溶出殺菌、光催化殺菌和復合作用殺菌。
38 、According to the results and data reported,it was given that the catalysis activity of iodine in acid and alcohol esterfication is not high.───將實(shí)驗結果與文獻數據綜合分析,得出了碘作為催化劑在酸醇直接酯化反應中的催化活性不高。
39 、The catalysis and oxidation Coulomb method to measure organic Chlorides is introduced.───介紹了催化氧化庫侖法測有機氯化物的方法。
40 、Harness supramolecular constructs to preserve the integrity of chemically labile species while conserving sites for the catalysis of chemical reactions including product release.───利用超分子結構維持化學(xué)不穩定物質(zhì)的完整性。同時(shí)保存包含產(chǎn)物釋放的化學(xué)反應中的催化位點(diǎn),
41 、It can be used in catalysis oxidative reaction, and the organic sulfurous compound can be inverted to more polarity oxysulfide sulfoxide with it.───分析該催化劑在柴油的空氣氧化脫硫反應中的催化效果。
42 、Increased rate of reaction, in the presence of catalyzers, is called catalysis, or catalytic action.───有催化劑時(shí),反應速度的加快叫做催化作用。
43 、Hydrotalcite-like anionic clays haye many special properties, which can be used as catalysis materials widely.───水滑石類(lèi)材料具有獨特的性能,作為催化及吸附材料應用廣泛。
44 、Consequently, H_2Q and H_2O_2 could enter the cell and react to produce BQ and H_2O under the catalysis of MPO. The produced BQ and H_2O diffused outside from the cell.───當溶液中加入MPO的底物(H_2Q和H_2O_2)后,它們可以**到細胞內,并在細胞內MPO的催化下發(fā)生反應生成BQ和水,生成的BQ和水**到細胞外。
45 、As a green solvent of high -performance,it is playing an important role in chemical separation,catalysis and electrochemistry,etc.───作為一種高效綠色溶劑,室溫離子液體在化學(xué)分離、催化、電化學(xué)等方面發(fā)揮著(zhù)重要的作用。
46 、In this paper,the latest advances in the application of silicoaluminophosphate (SAPO) molecular sieves to isomeric catalysis are reviewed.───介紹了SAPO分子篩在烯烴異構、烷烴異構、芳烴異構、異構脫蠟等化工過(guò)程的最新應用;
47 、Numerous applications of two phase catalysis to hydroformylation, hydrogenation and other organic reactions are also described.───兩相催化在烯烴的氫甲?;磻?、不飽和化合物的加氫反應以及其它有機反應中獲得了廣泛的應用。
48 、Mimic enzyme catalysis is a new challenging project in green chemistry.───仿酶催化是綠色化學(xué)研究中的一個(gè)重要課題。
49 、Additional contributio to catalysis can come from bound water molecules, metal io , or other factors.───其它促成催化的因素來(lái)自結合水分子,金屬離子或其它因子。
50 、Progress in research of CO 2 activated by plasma and plasma catalysis is summarized.───本文綜述了近年來(lái)利用等離子體活化及等離子體與催化劑協(xié)同活化二氧化碳轉化的研究進(jìn)展。
51 、The catalysis and catalysts of synthesis of vinyl acetate(VAc )by reductive carbonylation have been reviewed in this paper.───本文著(zhù)重對羰化法制醋酸乙烯的催化技術(shù)進(jìn)行了評述。
52 、The methods for immobilization and the applications of immobilized ionic liquids in catalysis and separation processes are reviewed in this paper.───本工作介紹了離子液體的固定化方法以及固定化離子液體在催化、分離方面的應用進(jìn)展。
53 、The imperfections of market economy often function as catalysis to such personality deficiencies as individualism, utilitarianism, selfish departmentalism and opportunism.───市場(chǎng)經(jīng)濟自身的不完善引起人們種種的人格缺陷;個(gè)人主義、功利主義、本位主義和機會(huì )主義。
54 、The FBC(fluorous biphase catalysis) is a new nonaqueous immobilization and phase-separation tech-nique.───氟兩相催化體系(FBC)是一種新型均相催化劑固定化(多相化)和相分離技術(shù)。
55 、S. B. Liu, Editor, Proceedings of the 3rd Conference of Indo-Pacific Catalysis Association, Academia Sinica, Taipei, Taiwan (2003).───劉尚斌,吳紀圣”第二十一屆臺灣區觸媒及反應工程研討會(huì )”論文集主編,中央研究院出版(2003).
56 、Abstract: The elementary principles and methods of carbon dioxide fixation by coordination and insertion reactions of transition metal complexes catalysis are reviewed.───文摘:綜述了利用過(guò)渡金屬配合物和二氧化碳的配位及**入反應實(shí)現二氧化碳固定的基本方法、原理及其研究現狀。
57 、In addition, the applications of polyoxometalate in the area of biomimetic catalysis are discussed.───同時(shí)也關(guān)注了多金屬氧酸鹽在仿生催化領(lǐng)域的應用。
58 、Electricity for powering a fuel-cell car is produced when electrons are stripped from hydrogen atoms at catalysis sites on the membrane surface.───當隔膜表面的觸媒使氫原子上的電子游離時(shí),即產(chǎn)生電力,供應燃料電池汽車(chē)動(dòng)力。
59 、This paper reviews the recent research work on the 4th China-Japan -USA.Symposium in organometallic chemstry and catalysis in Japan Tsukuba.───本文回顧在日本筑波市舉行的第四次中、日、座談會(huì )上關(guān)于有機金屬化學(xué)和催化作用最新的研究成果。
60 、Consequently, H_2Q and H_2O_2 could enter the cell and react under the catalysis of PO to produce BQ and H_2O.───當溶液中加入PO的底物(H_2Q和H_2O_2)后,它們可以**到細胞內,并在細胞內PO的催化下反應生成BQ和水。
61 、Method Photochemical catalysis traps,fly catchers,and cockroach catchers were used in this study.───方法采用光催化誘捕器捕蚊,捕蠅籠誘捕法捕蠅,粘蟑盒誘捕法捕蜚蠊。
62 、The immobilization methods of enzyme catalyst and the applications in catalysis reaction were introd...───并對固定化方法進(jìn)行了比較和評價(jià)。
63 、Moreover, we investigate the catalysis of four transition metal ions Cu~(2+), Mn~(2+),Co~(2+) and Zn~(2+) on the Fenton reaction.───另外,還考察了過(guò)渡金屬離子Cu~(2+)、Mn~(2+)、Co~(2+)、Zn~(2+)對Fenton試劑的協(xié)同催化作用。
64 、The corresponding reaction of acetaldehyde is subject to general base catalysis.───乙醛相應的反應服從廣義的堿催化。
65 、In order for the flux to have different levels of intonation there must be a catalysis of some kind.───持有不同音調水平的適宜的流量一定是某種性質(zhì)的催化作用。
66 、Pentachlorobenzene cyanide was synthesized by means of gas solid catalysis and chlorination using cyanobenzene and chlorine as the raw materials.───以苯甲腈和氯氣為原料,用氣固催化氯化法研制了五氯苯甲腈。
67 、According to the results and data reported, it was given that the catalysis activity of iodine in acid and alcohol esterfication is not high.───將實(shí)驗結果與文獻數據綜合分析,得出了碘作為催化劑在酸醇直接酯化反應中的催化活性不高。
68 、Catalysis may be either homogeneous or heterogenous.───催化可以是均相的,也可以是多相的。
69 、Applications including enzyme catalysis in SCF fermentation in SCF, SCF sterilization and cell disruption were reviewed.───已在生物工程領(lǐng)域應用的超臨界流體技術(shù)有超臨界流體酶催化、超臨界流體發(fā)酵、超臨界流體滅菌和細胞破碎技術(shù)等。
70 、Engine control systems and vehicle exhaust control systems such as ternary catalysis conversion devices, etc.───發(fā)動(dòng)機管理系統、三元催化轉化裝置等汽車(chē)尾氣排放控制系統。
71 、Method: The activity of GST in the tissues was detected by substract catalysis method.───方法:用GST底物催化測定法檢測成熟、未成熟豬囊尾蚴頭節及囊壁勻漿的GST活性。
72 、The elementary principles and methods of carbon dioxide fixation by coordination and insertion reactions of transition metal complexes catalysis are reviewed.───摘要綜述了利用過(guò)渡金屬配合物和二氧化碳的配位及**入反應實(shí)現二氧化碳固定的基本方法、原理及其研究現狀。
73 、UV Raman spectroscopy and its applications in catalysis are introduced.───本文介紹了紫外拉曼光譜及其在催化研究中的應用。
74 、Increased rate of reaction, in the presence of catalyzer, is called catalysis, of catalytic action.───有催化劑時(shí)反應速度的加快叫做催化作用。
75 、In the paper, the catalysis mechanism of FG is preliminarily discussed.───文中對FG的作用機理作了初步探討。
76 、Catalysis chemistry evolves from the development of economic society and the progress of scientific technology.───催化化學(xué)是在經(jīng)濟社會(huì )的發(fā)展和科學(xué)技術(shù)的進(jìn)步雙重推動(dòng)下應運而生的。
77 、The good dispersivity colloids have excellent catalysis for direct copper plating and its UV-VIS peaks are broadened.───分散性好的膠體鈀溶液的紫外-可見(jiàn)吸收峰變寬,經(jīng)過(guò)活化可以進(jìn)行直接電鍍。
78 、German chemist. He won a1909 Nobel Prize for work on catalysis and chemical equilibrium.───奧斯特瓦爾德,威廉1853-1932德國化學(xué)家。因其在催化作用和化學(xué)平衡方面的貢獻獲1909年諾貝爾獎。
79 、Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability.───摘要鈮酸和含鈮化合物獨特酸性和熱穩定性,廣泛的應用催化領(lǐng)域中。
80 、Pinna F. “Supported metal catalysts preparation”, Catalysis Today, 41, 129-137, 1998.───吳榮宗,“工業(yè)觸媒概論”,國興出版社,1989。
酶的原理是什么
酶作用原理
1.趨近效應(approximation)和定向效應(oientation)酶可以將它的底物結合在它的活性部位由于化學(xué)反應速度與反應物濃度成正比,若在反應系統的某一局部區域,底物濃度增高,則反應速度也隨之提高,此外,酶與底物間的靠近具有一定的取向,這樣反應物分子才被作用,大大增加了ES復合物進(jìn)入活化狀態(tài)的機率。
2.張力作用(distortionorstrain)
底物的結合可誘導酶分子構象發(fā)生變化,比底物大得多的酶分子的三、四級結構的變化,也可對底物產(chǎn)生張力作用,使底物扭曲,促進(jìn)ES進(jìn)入活性狀態(tài)。
3.酸堿催化作用(acid-basecatalysis)
酶的活性中心具有某些氨基酸殘基的R基團,這些基團往往是良好的質(zhì)子供體或受體,在水溶液中這些廣義的酸性基團或廣義的堿性基團對許多化學(xué)反應是有力的催化劑。
4.共價(jià)催化作用(covalentcatalysis)
某些酶能與底物形成極不穩定的、共價(jià)結合的ES復合物,這些復合物比無(wú)酶存在時(shí)更容易進(jìn)行化學(xué)反應。
例如:無(wú)酶催化的反應 RX+H2O→ROH+Hx慢
有酶存在時(shí) RX+E桹H→ROH+EX快
EX+H2O→E桹H+HX快
酶的原理是什么
酶就是起催化作用.和化學(xué)里的催化劑是一樣的道理.它本身不參與反應,反應前后其本身沒(méi)有任何變化.生物酶有,蛋白質(zhì)類(lèi)、固醇類(lèi)、RNA類(lèi)!
補充:
酶作用機理
1.趨近效應(approximation)和定向效應(oientation)酶可以將它的底物結合在它的活性部位由于化學(xué)反應速度與反應物濃度成正比,若在反應系統的某一局部區域,底物濃度增高,則反應速度也隨之提高,此外,酶與底物間的靠近具有一定的取向,這樣反應物分子才被作用,大大增加了ES復合物進(jìn)入活化狀態(tài)的機率。
2.張力作用(distortionorstrain)
底物的結合可誘導酶分子構象發(fā)生變化,比底物大得多的酶分子的三、四級結構的變化,也可對底物產(chǎn)生張力作用,使底物扭曲,促進(jìn)ES進(jìn)入活性狀態(tài)。
3.酸堿催化作用(acid-basecatalysis)
酶的活性中心具有某些氨基酸殘基的R基團,這些基團往往是良好的質(zhì)子供體或受體,在水溶液中這些廣義的酸性基團或廣義的堿性基團對許多化學(xué)反應是有力的催化劑。
4.共價(jià)催化作用(covalentcatalysis)
某些酶能與底物形成極不穩定的、共價(jià)結合的ES復合物,這些復合物比無(wú)酶存在時(shí)更容易進(jìn)行化學(xué)反應。
例如:無(wú)酶催化的反應 RX+H2O→ROH+Hx慢
有酶存在時(shí) RX+E桹H→ROH+EX快
EX+H2O→E桹H+HX快?
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