脲乙酸 的英文怎麼說
中文拼音 [yǐsuān]-
Abstract : in ureide - transporting legumes , ureides ( allantoin and allantoic acid ) are major transportform of biological fixed nitrogen. the distribution , properties , structure and regulation of plant allantoinase were reviewed in detail. the advances in the recent studies on allantoate amidohydrolase and ureidoglycolate amidohydrolase were introduced. and the works desired to be done were pointed out
文摘:全面綜述植物酰脲降解代謝酶的研究現況,概述植物尿囊素酶的分佈、性質、結構,以及調節控制,並簡介植物尿囊酸酰胺水解酶和脲基乙醇酸酰胺水解酶的研究近況,同時指出待研究的方向。At the same time, we also can supply taed, thiourea, melamine, aluminum sulphate, titanium dioxide rutile and anatase, rubber accelerator, methyl cellulose, hydroxypropyl methyl cellulose, monoammonium phosphate and other phosphates, 2 - ethyl anthraquinone, etc
同時還可為客戶提供四乙酰乙二胺硫脲三聚氰胺硫酸鋁鈦白粉橡膠促進劑甲基纖維素羥乙基甲基纖維素羥丙基甲基纖維素,磷酸二氫銨2 -乙基蒽醌等十幾種優質化工品。Thiourea dioxide, sodium percarbonate, furfuryl alcohol, furfural, thiourea, melamine, 2 - ethyl anthraquinore, titanium dioxide rutile, titanium dioxide anatase, hydroxythyl methyl cellulose, hydr
二氧化硫脲,甲脒亞磺酸, fas紙漿漂白劑,過碳酸鈉,糠醇,糠醛,硫脲,四乙酰乙二胺。Mass spectrometry technique will play more and more role in the field of sequence analysis. standard amino acid thiohydantoins are required as reference standard for development of c - terminal protein sequencing based on the thiohydantoin procedure
在蛋白質c端(異)硫氰酸法順序測定技術中,標準氨基酸乙內酰硫脲( th - aa )的制備是必須首先要解決的問題。Code of practice for thermal insulation of roofs externally by means of sprayed rigid polyurethane or polyisocyanurate foam
採用噴塗剛性聚氨基甲酸乙酯和聚異三聚氰脲酸酯泡沫對屋頂外部進行隔熱的實用規程Transition metal coordination compounds easily cause d - d transition or change transfer transition. so they show dramatic colors. in this paper, two organic hydrate thermochromic material and a series of thermochromic transition metal complexes are synthesized, and a schiff was synthesized too
研究了對氨基苯乙酮、鹽酸氨基脲縮水楊醛、三水合對硝基苯胺以及對氨基乙酰苯胺等有機物作配體形成的過渡金屬配合物的合成及其熱色性。Hydantoinases which consist of hydantoin hydrolase, n - carbamoylase and sometimes hydantoin racemase can hydrolyze d, l - 5 - substituted hydantoin into corresponding optically active amino acids. therefore, the hydantoinases from micro - organisms are widely applied to the industrial production of natural and unnatural amino acids. microbial hydantoinases are considered as industrial enzymes from the origin of life
乙內酰脲酶是廣泛存在於動物、植物和微生物的一類酶系,包括乙內酰脲水解酶( hydantoinhydrolase , hyuh )和n -氨甲酰基氨基酸水解酶( n - carbamoylase , hyuc ) ,有些情況下還包括乙內酰脲消旋酶( hydantoinracemase , hyur ) 。The l - n - carbamoylase of arthrobacter bt801, coded by the hyuc gene, is the rate - limiting and the only stereoselective enzyme. hydantoin hydrolase gene ( hyuh ) and n - carbamoylase gene ( hyu c ) were amplified from the plasmid of puc18 - 169 by pcr and, at the same time, activity expression was obtained in e. coli and pichia pastor is gs115 respectively
節桿菌bt801的乙內酰脲水解酶催化乙內酰脲類化合物水解開環, n -氨甲酰基氨基酸水解酶是該菌乙內酰脲酶系中惟一具有立體選擇性的酶,也是整個反應體系的限速酶。To improve the production and activity of the enzyme, the hydantoin hydrolase gene ( hyuh ) was cloned into e. coli m15 and bl21 ( de3 ) by using vector pqe60 and pt221 respectively. two expression plasmids were thus constructed
用pcr技術從質粒puc18 - 169中擴增出l -乙內酰脲水解酶基因( hyuh )和n -氨甲酰基氨基酸水解酶基因( hyuc ) ,分別在大腸桿菌和畢赤酵母中實現了活性表達。Content of the project : utilize co2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc
項目內容:利用二氧化碳資源,新建碳酸二甲酯、顆粒乾冰粉、水楊酸、輕質氧化鮮、碳酸鈉、乙撐脲生產線。Rough calculation of investment : 1 ) methyl carbonate : total investment is rmb100 million yuan ; investment return period is 4 years. 2 ) granular dry ice powder : total investment is rmb31 million yuan ; investment return period is 2 years. 3 ) salicylic acid : total investment is rmb25 million yuan ; investment return period is 3 years. 4 ) sodium carbonate : total investment is rmb50 million yuan ; investment return period is 3 years. 5 ) ethylene urea : total investment is rmb60 million yuan ; investment return period is 4 years
投資概算: 1 、碳酸二甲酯項目總投資1億元,投資回收期4年; 2 、顆粒乾冰粉項目總投資3100萬元,投資回收期2年; 3 、水楊酸項目總投資2500萬元,投資回收期3年; 4 、輕質氧化鮮項目總投資2000萬元,投資回收期2年; 5 、碳酸鈉項目總投資5000萬元,投資回收期3年; 6 、乙撐脲項目總投資6000萬元,投資回收期4年。The tio2, cds and cds - tio2 films on the common glass substrate were prepared, respectively, using ti ( oc4h9 ) 4, cd ( cooch3 ) 2 and scn2h4 as raw materials by sol - gel method. the influences of manifold preparing parameters ( such as the concentration of sol, the amount of the peg. the number of coatings, the heat - treated temperature and time ) on the structure and performance were studied
本文採用溶膠-凝膠技術,以鈦酸丁酯、乙酸鎘和硫脲為原料,以普通玻璃片為載體,制備了納米tio _ 2薄膜、 cds薄膜和cds - tio _ 2復合半導體薄膜,研究了制備過程中多種制備參數(如溶膠的濃度,聚乙二醇( peg )的加入量,鍍膜層數,熱處理溫度及時間)對薄膜結構和性能的影響,採用x -射線衍射( xrd ) 、掃描電鏡( sem ) 、能譜分析( edxa ) 、紫外-可見吸收光譜( uv - vis )等測試手段對各薄膜進行了結構和物性表徵。分享友人