醛氧化過程 的英文怎麼說
中文拼音 [quányǎnghuàguòchéng]
醛氧化過程
英文
aldehyde oxidation process- 醛 : 名詞[化學] (有機化合物的一類) aldehyde
- 氧 : 名詞[化學] (氣體元素) oxygen (o)
- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 氧化 : [化學] oxidize; oxidate; oxide; burning; rust; oxygenize; oxido-; oxy-
- 過程 : process; procedure; transversion; plication; course
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Study on the oxidation of glyoxal for synthesizing allantoin
乙二醛合成尿囊素的氧化過程研究The pyretic acid formed by glycolysis is broken down into acetaldehyde and carbon dioxide
糖酵解過程中產生的丙酮酸分解為乙醛和二氧化碳。With the increace of zn stress, the content of chlorophyll, superoxide dismutase ( sod ) activity and soluble protein content dropped significantly, peroxidase ( pod ) and catalase ( cat ) activities rised at first and lowered later, and malonyl dialdehyde ( mda ) content increased drastically
隨鋅脅迫程度的增大,葉綠素含量、 sod (超氧化物歧化酶)活性和可溶性蛋白含量呈下降趨勢;而pod (過氧化物酶)和cat (過氧化氫酶)活性則先升后降; mda (丙二醛)含量上升。According to their pathogenic activity, three strain of marine bacteria were selected as l2 ( alteromonas sp ), g ( pseudomonas sp ), py ( pseudomonas sp ). the biochemical changes of malondialdehyde ( mda ), which is the lipid peroxidation end product and can be measured by thiobarbituric acid ( tba ) regeant, and polyphenol content, which reflected the host non - specific chemical defense activity and can be measured by folin - ciocalteu method, were determined at different time intervals during host pathogenesis
本研究採用海帶作為模式藻類生物,以褐藻酸降解菌l2 , g及非褐藻酸降解菌py為復染菌建立人工復染體系,用硫代巴比妥酸( tba )試劑測定抗感染過程中海帶組織細胞膜脂肪氧化產物丙二醛( mda )的變化情況及folin - ciocalteu酚試劑測定病原菌感染過程中海帶組織中多酚含量隨時間變化情況。And the value drop to the lowest at ph = 0. 8. as the increase of heat treatment temperature, the pore size distribution peak of sio2 microspheres is very narrow, meanwhile the specific surface area is the smallest before 160 c. the polymer template is removed at 350 c, so the pore structure of sio2 particles has a big change which involve the increase of specific surface area and the broaden of pore size distribution peak. with the continuous raise of temperature the sio2 network will shrink little, as a result the average pore size will decrease, but the specific surface area has no obvious change
結果發現:二氧化硅膠體顆粒均勻分佈於脲醛聚合物網路中,煅燒去除有機模板后微球表面變粗糙,而粒徑沒有明顯變化; ph值較小時,復合微球中聚合物含量較大,而ph值較大時,得到復合微球結構鬆散,因此熱處理后的二氧化硅微球孔容及平均孔徑都較大,而在ph = 0 . 8時,得到最小值;武漢理工大學碩士學位論文隨著熱處理溫度的變化,小於160時,空分佈較窄,而比表面積較小,在350時,由於有機模板的去除,微球孔結構發生突變,比表面積明顯增大,而孔徑分佈變寬,溫度繼續升高時,二氧化硅網路發生收縮,平均孔徑變小而比表面積由於有機炭化物的完全去除沒有太大變化;微球中的微孔在熱處理過程中處于平衡狀態,分佈沒有太大變化。2 ) effect on contents of mda mda is the product that membrane lipid peroxide and the contents of mda in plants can reflect the degree of the damage that the plants are encountered to some extent. the measurement results show that the accumulation of mda in transgenic tomato were lower than that of the control, which suggested that the cell membrane system was damaged under the low - temperature stresses, meanwhile the transformants suffered the little damage than the control plants
2 )丙二醛含量:丙二醛是膜脂過氧化的產物,它在植物體內含量的高低能夠在一定程度上反映植物受傷害的程度,實驗結果表明轉基因植株體內丙二醛的含量明顯低於對照,說明轉基因番茄在低溫脅迫下有毒物質積累的少,膜脂過氧化程度輕,耐寒性強。Electroless copper depositing processess are controlled by the kinetics of formal dehyde oxidation reaction, which donate electron for the cathodic reduction of cupric ions
摘要化學鍍銅反應受甲醛氧化過程動力學控制,甲醛氧化為銅離子還原提供電子。Study on absorbent reaction mechanism for the ozonization of cinnamaldehyde
肉桂醛臭氧化反應吸收過程的研究Abstract : benzotriazole is a good corrosion preventive compound that can reacts with aldehyde and alcohol. the addition reaction is used to synthesize eight alkoxyalkyl benzotriazoles by benzotriazole, propionaldehyde and methanol, ethanol, propanol, iso - propyl alcohol, n - but anol, iso - butanol, sec - butanol, tert - butanol. their structures were confirmed by elemental analysis, ir and 1hnmr. the mechanism of addition reaction was discussed
文摘:利用苯駢三氮唑、丙醛分別和甲醇、乙醇、丙醇- 1 、丙醇- 2 、丁醇- 1 、丁醇- 2 、 2 -甲基丙醇- 1 、 2 -甲基丁醇- 2反應合成了八種烷氧基烷基苯駢三氮唑,通過元素分析、 ir 、 1hnmr對上述化合物的結構進行了測定,並討論了這類加成反應的歷程。In the course of oxidation, reaction temperature should rise step by step, and in the late stage, reduced pressure distillation should follow so that the concertration of glyoxalic acid can rise and production rate of allantoin can rise up to 40 %
在氧化反應的過程中逐步地提高反應溫度,反應後期進行減壓濃縮,提高了乙醛酸的濃度,縮短了氧化時間,並使尿囊素產率達到40 % 。The changes of specific surface area before and after sintering were measured by nitrogen adsorption. the results show that the surface of sioi particles become coarser along with the remove of polymer template, but the particle size keep no change. the composite microspheres include more uf polymer under low ph value but turn into more looser under high ph value, so the result mesoporous sioi microspheres have big pore volume and average pore size
對脲醛sio _ 2復合微球進行熱處理后得到介孔二氧化硅微球,用示差掃描量熱( dsc )熱重( tg )分析研究了脲醛sio _ 2復合微球的脫水、脫醇及有機物炭化分解的過程;用氮氣吸附法分析了不同ph值、熱處理溫度對介孔二氧化硅微球的比表面積及孔結構的變化影響;用sem表徵了不同ph值下二氧化硅微球的形貌變化。分享友人