碳基酸 的英文怎麼說
中文拼音 [tànjīsuān]
碳基酸
英文
carbylic acid
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碳 :
名詞[化學] (非金屬元素) carbon (c)
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酸 :
酸構詞成分。
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The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno
研究結果表明: 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化:隨海拔高度上升,機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒,海拔1600m以下出現粘化層;土壤有機質豐富,表層有機
碳含量一般在20g kg以上,有機
碳含量隨海拔高度升高而相應增加,海拔3500 3700m的灌叢草甸植被下有機
碳含量最高;土壤呈
酸性或微
酸性,並隨海拔上升, ph值略微降低,
酸性增強,海拔2700m以上的土壤多呈鹽
基不飽和狀態,表明土壤淋溶作用較強, ph值和鹽
基飽和度呈極顯著正相關;土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定,土體中sio _ 2含量較高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
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Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc
文摘:綜述了近幾年釕亞乙烯
基絡合物中間體-
碳的親核反應。親核試劑包括烯烴、炔烴、醇、
酸、胺、水等。
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These two amino acids derive their carbon skeletons from pyruvate.
這兩個氨
基酸從丙酮
酸獲得它們的
碳架。
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4. engineering dhqase ( arod ) - deficient e. coli mutant with a second copy of the arob gene gene targeting technique was used to disrupt the arod gene in e. coli chromosome. the mutant 31bk was engineered, in which homologous recombination of the arobkanr gene cassette into the arod locus ( arod : : arobkanr ) of the e. coli strain atcc31884 genome utilized the helper plasmid pkd46 with red system. the host cell 31bk lacked catalytic activity of dhqase ( arod ) and had a second copy of the arob gene, so it improved carbon flow into the quinic acid biosynthesis direction
構建宿主菌
基因精確定位突變株31bk ( arod : : arobkan ~ r )為了改變代謝途徑脫氫奎尼
酸( dhq )分支點上的代謝流量,使之充分流向目的產物奎尼
酸合成方向,利用
基因打靶技術構建了31884宿主菌arod
基因精確定位插入突變體,使dhq脫水酶( dhqase )失活,阻斷了
碳代謝流流向芳香氨
基酸生成的方向,同時用同源重組的方法將arob
基因定位整合入染色體上,解除了限速酶對
碳代謝流通過共同途徑到達dhq的阻遏影響,並減輕代謝負擔。
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Methods for analysis and testing of coal and coke - ultimate analysis of coal and coke - determination of carbonate carbon content
煤和焦
碳分析和試驗方法.第106部分:煤和焦
碳基本分析.第7節:
碳酸鹽
碳含量測定
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Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "
W12菌株對環境因子的適應性研究:無氮培養條件下,測定溫度、
碳源、
酸堿度、滲透壓對w12生長及固氮能力的影響,結果表明,在15 - 40下均能生長並表達固氮酶活性,其最適生長及固氮的溫度為25 - 35 ;能利用葡萄糖、蔗糖、蘋果
酸、甘露醇等多種
碳源生長並固氮,當培養
基中同時存在蔗糖和蘋果
酸時,細菌生長和固氮活性最強;在偏
酸和偏堿的條件下( ph4 . 5 - 8 . 5 )均能保持較強的生長勢和較高的固氮酶活性,並能通過調節自身代謝平衡並適應環境的
酸、堿性變化,使培養液趨于中性:能耐受較高的滲透壓,培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大,當naci濃度升至2時,菌株的生長勢及固氮酶活性才有所下降:低濃度的鉸對其固氮酶活性影響不大,在0
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The seed was also rich in total sugar, in crude protein, in amino acid and inorganic elements. in addition, the higher antimicrobial activity of alcohol extracts from the seed and pentadecanoic acid containing 18. 99 % in the unripe seed oils were first found
種子的總糖、粗蛋白、氨
基酸、礦質元素含量也較豐富。首次發現種子醇提物有較強的抗菌活性和青果種子油有相對含量高達18 . 99的十五
碳烷
酸。
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Results came as follows : in this dissertation, we found that it was the smallness of the positive electrode capacitance that limits the performance of carbon based supercapacitors in alkaline electrolytes, and the performance could be meliorated if the active material loaded on positive electrode increased. activated carbon electrode was proved to have good capacitor performances in neutral electrolyte such as ammonium sulfate solution and ammonium nitrate solution, but a correlated problem is the corrosion of the metal current collector
本文通過考察活性炭電極在堿性電解液中的電極行為,指出活性炭電極在堿性溶液中正極性能較差是影響
碳基超級電容器性能的重要因素,增大正極活性物質的載量能夠使電容性能得到一定程度的改善,同時發現活性炭電極在硫
酸銨和硝
酸銨等中性電解液中具有優越的電極性能,但存在金屬集流體的腐蝕問題。
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Lactic acid a 3 - carbon hydroxy - acid formed as a result of fermentation by cretain bacteria, e. g. lactobacillus
乳
酸:某些細菌發酵得到一種三
碳羥
基酸。例如:乳
酸菌。
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Hifacs is made of the extract of seaweed, fresh egg, liver powder, fish past, shrimp head with a special fermentation, enzymes, activated, chitasan, amino acids, vitamins and trace minerals
採用天然色素海藻抽出物活性
碳鮮蛋魚漿蝦漿酵素肝精粉聚甲殼糖綜合氨
基酸等高級原料,內含多種微量礦物質及維他命。
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The results indicated that broom flower is 50 %, 80 % and 100 % higher in protein, fat and carbohydrate content respectively than the ten vegetables, and the amino acid composition is balanced and the content reaches 1875. 55mg / 100g, with 37. 92 % of essential amino acids. the trace element zinc and selenium, and vitamin b2 is significantly higher than the ten common vegetables
結果表明,金雀花的蛋白質、脂肪和
碳水化合物的含量比10種常見蔬菜平均值分別高5濺, 8既和100 % ;氨
基酸種類齊全,含量達1875 . 55mg / 1009 ,人體必需氨
基酸占氨
基酸總量的37 . 92 % ;微量元素鋅和硒,維生素b2等營養成分,明顯高於10種常見蔬菜。
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Studies of the carbon compounds in meteorites show that amino acid, the basic component of proteins and our dna, is falling on the earth every day from space
科學家在研究隕石的
碳化合物時,發現每天都從太空落到地球的隕石,竟然包含了組成蛋白質和我們身上dna的
基本成份氨
基酸!
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Structural characterization may include a determination of amino acid sequence, amino acid composition, peptide map, and carbohydrate structure
結構界定可能包括氨
基酸序列,氨
基酸組成,縮氨
酸圖和
碳水結構。
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The research on the effect of liquid - liquid transition of polyacrylate on crystallization - melting of pdms indicates that above the melting temperature of pdms, pdms is reinforced by a special mutual action between p - electron in carbonyl of polyacrylate and 3d orbit in si atom of pdms, while below the temperature, the pdms crystal is lessened, which can not completely remove the crystal of pdms. however, it is the crystallization behavior of pdms that results in its most segments relaxation being restrained
研究聚丙烯
酸酯液一液轉變對聚二甲
基硅氧烷結晶一熔融影響的結果表明:
碳基碳原子上p電子與出原於中3d軌道相互作用,在聚h甲
基硅氧烷熔融轉變溫度以上,對其有分子增強作用;在聚二甲
基硅氧烷熔融轉變溫度以下,霎對其有降低結晶度的作用,但不能消除結晶現象。
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The items carried out in this course including uv - vis analysis of dyes and organic compounds, determination of cr6 + in aqueous solution, quantitative analysis of inorganic phosphate, quantitative analysis of fe2 +, quantitative analysis of amino acid, application of atomic absorption, conductivity titration, acid - base titration, application of liquid chromatography, anionic chromatography, cationic chromatography, total organic carbon analysis, determination of chlorophyll and application of infrared spectrometer
實驗項目包括染料色素及有機物的紫外光可見光譜分析、水中六價鉻含量測定、無機磷
酸鹽的比色定量、試樣中鐵的比色定量、胺
基酸的比色定量、原子吸收光譜法的應用、電導滴定方法的應用、
酸減滴定法的應用、液相層析方法的應用、陰離子層析、陽離子層析,氣體層析、總有機
碳分析、葉綠素含量測定及紅外線光譜法應用。
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Sequencing and genbank blasting demonstrated that these four had the same sequences and encoded part of arabidopsis choloroplast carbonic anhydrase ( ca ). the coding region contained 251 amino acid, from n terminal amino acid 86 to c terminus
到genbank進行序列比對,結果表明它們編碼擬南芥葉綠體
碳酸酐酶( ca )
基因,編碼區含有部分ca序列,從n端第86位氨
基酸至c末端,共251個氨
基酸。
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For edible chrysanthemum, the results show that the flower of edible chrysanthemum is comparable to or higher than the five common vegetables in the content of the four principle nutrients ( protein, fat, ash content and carbohydrate content )
食用菊花的
碳水化合物、蛋白質、脂肪、灰分的含量較常見蔬菜高或相當,氨
基酸種類齊全,人體所必需的微量元素鐵、鋅、硒和維生素b1 、 b2的含量遠高於一般蔬菜。
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Eng. ) introduction, amino acids, protein ' s primary structure and its biological function, protein secondary, tertiary, quaternary structure, carbohydrate, lipid, membrane, nucleotides and nucleic acids, structures of nucleic acids
中)簡介,胺
基酸,蛋白質的一級結構及生物功能,蛋白質的二、三、四級結構,
碳水化合物、醣類,脂質,細胞膜、與膜的運輸,核?
酸與核
酸,核
酸的結構。
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Nutritional analysis the nutrient contents ( protein, amino acids, fats, ashes, carbohydrates, mineral substances and vitamins ) in the flower of broom edible chrysanthemum and hibiscus were analyzed, and compared with common vegetables
三、營養成分分析:對金雀花、食用菊花和木懂花的主要營養成分蛋白質、氨
基酸、脂肪、灰分、
碳水化合物、部分礦物質和維生素進行測定分析,並與常見蔬菜比較。
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Serum free amino acid was measured before and after the treatment
結果:經碳酸鹽透析后,患者血漿大多數游離氨基酸和總氨基酸含量顯著降低。