查询词典 substrate

Results showed that there was significant correlation between the two assays with catechol and tyrosine as substrate respectively.

结果表明，以邻苯二酚和酪氨酸为底物所测PPO活性极显著相关，邻苯二酚所测活性强，但酪氨酸所测活性的变异系数大。

Corn stalk pretreated by dilute sulfuric acid was hydrolyzed by the dosages of 20 FPIU/g Trichoderma reesei cellulase and 4 IU/g β-glucosidase at the substrate concentration of 100 g/L for 48 h, the concentration of cellobiose and glucose in hydrolysate were 1.12 and 42.68 g/L, respectively, the yield of enzymatic hydrolysis and the ratio of fermentable sugar were 62.85% and 97.44% respectively.

底物质量浓度为100g/L的稀硫酸预处理玉米秸秆，经酶用量为20 FPIU/g的里氏木霉纤维素酶和4IU/g的β-葡萄糖苷酶水解48h，水解糖液中纤维二糖和葡萄糖质量浓度分别为1.12和42.68g/L，纤维素水解得率和可发酵性糖的比例分别为62.85%和97.44%。

A new type in-situ reinforcing Cr7C3 ceramal composite coating was fabricated on carbon steel(C3) substrate by plasma cladding. Microstructure of the ceramal composite coating was characterized by SEM, XRD and EDS. Room and high temperature wear properties were evaluated under dry sliding wear test conditions and their wear mechanism was discussed.

采用等离子熔覆技术，在调质C3钢表面制得以原位生成初生相Cr7C3为增强相的金属陶瓷复合材料涂层；利用SEM、XRD和EDS等分析了涂层的显微组织和相组成；测试了在室温干滑动磨擦及高温滑动磨擦条件下涂层的耐磨性，并讨论了其磨损机理。

From both steady-state and transient thermal simulation, the influence of device power density,substrate material,and channel width on temperature distribution is analyzed.

通过对器件沟道温度分布的稳态及瞬态模拟，研究了器件功率密度、衬底材料类型和器件宽长等关键因素的影响。

Needle to the site,enzyme to the substrate constitutes,the basic element of chemolysis,the establish of any penetration way and the choice of injection method,need to obey this basic principle.

针抵患处、酶达底物，是构成化学溶解术一技术的基本要素，任何穿刺途径的确立和注射方法的选择，均应遵循这一基本原则。

In order to optimize enzymolysis technology for production of antioxidant peptides from chickpea protein, effect of ratio of enzyme to substrate, enzymolysis temperature, and hydrolysis time on the technology in which reducibility and superoxide anion radical capturing rate were taken as response values was analyzed with response surface methodology.

为优化Alcalase蛋白酶酶解鹰嘴豆蛋白制备抗氧化肽的工艺条件，采用响应面分析法，以还原能力、超氧阴离子捕获率为响应值，研究了酶与底物的比值、酶解温度和酶解时间对制备抗氧化肽工艺的影响。

Ratio of enzyme to substrate, temperature, and hydrolysis time for the production of antioxidant peptides were analyzed with Response surface methodology in which reducibility and superoxide anion radical capturing rate was response value to build a predictive model for the enzymolysis of chickpea protein and the optimization of the enzymolysis technology parameters.

为优化Alcalase蛋白酶酶解鹰嘴豆蛋白制备抗氧化肽的工艺条件，采用响应面分析法（response surface methodology，简称RSM），以还原能力、超氧阴离子捕获率为响应值，研究了酶与底物的比值、酶解温度和酶解时间对制备抗氧化肽工艺的影响。

In clinical. acetylcholinesterase inhibitors reduce the breakdown of synaptic acetylcholine, have been modestly effective in improving the cognitive deficits of Alzheimer's disease.The goal of this work is to determine enzyme kinetics and mechanisms of acetylcholinesterase and butyrlcholinesterase inhibition by five cardiovascular drugs, lovastatin, simvastatin, amlodipine besylate, nifedipine, and hydralazine hydrochloride, and two benzodiazepines, diazepam and chlordiazepoxide hydrochloride. All drugs in this study are reversible mixed-type inhibitors of acetylcholinesterase and butyrylcholinesterase. The pKi values for acetylcholinesterase and butyrylcholinesterase inhibition by the cardiovascular drugs are linearly correlated with the molecular weights of the drugs with the slopes of 0.005 and 0.0021, respectively. Therefore, van der Waals' interactions between acetylcholinesterase and the cardiovascular drugs are stronger than those between butyrylcholinesterase and the drugs. This is probably due to a smaller active site gorge and a more significant peripheral anionic substrate binding site of acetylcholinesterase than those of butyrylcholinesterase.

本研究之目的系决定乙醯胆碱酯酵素和丁醯胆碱酯酵素被五种心脏血管药物lovastatin， simvastatin， amlodipine besylate， nifedipine、hydralazine hydrochloride和两种benzodiazepines：diazepam和Chlordiazepoxide hydrochloride的抑制作用之动力学及机转，这些药物都是乙醯胆碱酯酵素和丁醯胆碱酯酵素的可逆性、混合型之抑制剂，实验结果显示，五种心血管药物对於乙醯胆碱酯酵素及丁醯胆碱酯酵素抑制之pKi值和药物之分子量呈直线之关系，斜率分别为0.005及0.0021因此丁醯胆碱酯酵素，与心血管药物间之凡德瓦作用（van der Waals' ）比乙醯胆碱酯酵素与心血管药物间者弱，这可能原因是丁醯胆碱酯酵素之活性区域比乙醯胆碱酯酵素之活性区域更宽广，但丁醯胆碱酯酵素之周边阴离子区域不及乙醯胆碱酯酵素之周边阴离子区域者明显重要，由於五种心血管药物对於乙醯胆碱酯酵素和丁醯胆碱酯酵素抑制之pKi值存在著线性关系表示此种抑制作用系经过共同之反应机理。

The function of the addition of co-substrate ethanol was to in-situ regenerate NADH. A mathematical model was derived, in which, two substrates were catalytically reacted in sequence. The model was applied to the system involving the reduction of 2'-chloroacetophenone to R-2'-chloro-1-phenyl-ethanol by S.

深入研究了在乙醇存在下生物还原过程中酵母细胞内NADH、NAD〓、NADPH及NADP〓浓度的变化规律，发现胞内NADPH浓度迅速降低到零，而NADH浓度始终维持在较高水平，证明了用于底物还原反应的辅酶是NADH，辅助底物乙醇的加入有利于实现辅酶Ⅰ的原位再生。

The substrate coupling reaction system catalyzed by recombinanted CAR wasconstructed. It can be used for asymmetric reduction of 2'-chloroacetophenone and coenzyme regeneration with 2-propanol or 2-butanol as the cosubstrate.

5应用重组CAR不对称催化还原2'-氯-苯乙酮，通过加入异丙醇或仲丁醇作为辅助底物，建立了底物耦联反应体系实现辅酶NADH原位再生的反应体系。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。