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活化动力学
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  activation kinetics
     The Boolean function graphic analysis applicable to the non-steady state enzyme kinetics has been applied to the analysis of non-steady state enzyme activation kinetics. The rate equation of this reaction system has been discussed.
     以非稳态酶动力学的布尔函数图形方法研究非稳态酶活化动力学问题,推导出此类反应的非稳态酶动力学方程,并对此动力学方程进行了讨论,分析了酶活化反应体系的非稳态酶动力学过程.
短句来源
     PREPARATION AND CARBONIZATION ACTIVATION KINETICS OF SISAL BASED ACTIVATED CARBON FIBER
     剑麻基活性炭纤维的制备及其碳化活化动力学
短句来源
     Modified Elovich equation and two-constant rate equation fits best for the activation kinetics of accumulative phosphorus in soils.
     修正的Elovich公式和双常数速率公式对土壤中积累态磷的活化动力学拟合最好。 土壤中添加了NH4-沸石后 ,土壤中积累态磷的活化释放明显增快。
短句来源
     This paper deals with activation kinetics of accmulative phosphorus in fluvoaquic soils and red soils, as is influenced by organic matter.
     研究了潮土和红壤中积累态磷的活化动力学及其有机质的影响。
短句来源
  dynamics of activation
     Preparation of New Bleaching Activator TAED and Study on Dynamics of Activation
     新型漂白活化剂TAED的研制及其活化动力学研究
短句来源
  “活化动力学”译为未确定词的双语例句
     Effects of Promoter La_2O_3 and Supports on Kinetic Parameters of Dissociation Activation of CH_4 over Ni-Based Catalysts
     助剂La_2O_3和载体对镍基催化剂上甲烷解离活化动力学参数的影响
短句来源
     STUDY ON THE PREPARATION OF ACTIVATED CARBON ( Kinetics of Activation Reaction of Carbonaceous Materials with Steam )
     活性炭制备的研究——含碳原料与水蒸汽反应的活化动力学
短句来源
     THE STUDY ON KINETIC PARAMETERS OF KOH ACTIVATION AND REACTION MECHANISM
     KOH活化动力学及活化机理初探
短句来源
     Kinetics of activation reaction of several kinds of carbonaceous materials activated with steam was studied.
     本文研究了七种含碳原料在制备活性炭时碳与水蒸汽反应的活化动力学
短句来源
     The kinetics of preparation active carbon from Yunnan Xianfeng lignite with phosphoric acid activation was studied.
     研究了磷酸一步炭活化云南先锋褐煤的炭活化动力学 .
短句来源
  相似匹配句对
     Kinetics of thermal decomposition of mechanically activated pyrite
     机械活化黄铁矿的热分解动力学
短句来源
     Activation Energy in Chemical Kinetics
     化学动力学中的活化能概念
短句来源
     Dynamics of Enzyme Catalysis
     酶催化动力学
短句来源
     Dynamics of Rational Functions
     有理函数的动力学
短句来源
     Alive Building
     活化建筑
短句来源
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  activation kinetics
It is proposed that reorientation of these molecules during moderate SMF exposure will result in the deformation of imbedded ion channels, thereby altering their activation kinetics.
      
Activation kinetics of a Bacillus subtilis menaquinone biosynthetic gene promoter (the menCD promoter) were measured during growth and sporulation, with the aid of a menCD'-lacZ translational gene fusion.
      
Erythromycin also blocked Kv1.5 current in both a voltage- and frequency-dependent manner but had little effect on the activation kinetics, deactivation kinetics, or the steady-state inactivation properties of Kv1.5.
      
Kv1.5 activation kinetics were significantly accelerated while the activation curve was negatively shifted by 10?mV (V1/2 changed from -9.3 to -19.0?mV) in the presence of 100?μM H2O2.
      
The two reporters differed in terms of fold-induction, activation kinetics, sensitivity and specificity upon exposure to a variety of genotoxic compounds.
      
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  dynamics of activation
The dynamics of activation and synaptic adaptation are analyzed in experiments where representations for different input patterns are formed, focusing on the properties of the model as a memory system.
      
The dynamics of activation processes (high-energy events) due to nonlinear mechanisms is studied.
      
The dynamics of activation showed a wavelike nature, with peaks at 10 min and 4 h.
      
These results suggest that both the level and dynamics of activation of tTG activity in DC were tumor-specific.
      


Kinetics of activation reaction of several kinds of carbonaceous materials activated with steam was studied. It was shown that the reaction rates of the charcoals prepared from pine wood, cocoanut shell, almond kernel, olive kernel and bituminous coal were strongly influenced by steam concentration except those of brown coal and anthracitic coal. It can be assumed that this reaction, on base of carbon, is at zero order.

本文研究了七种含碳原料在制备活性炭时碳与水蒸汽反应的活化动力学。研究结果表明:水蒸汽浓度对从松树、椰子壳、杏核、橄榄核制成的炭和烟煤在反应中有较强的影响,褐煤和无烟煤影响不大。 从活化反应研究可以认为实验范围内,就碳来说是属于零级反应。

Pyrophosphate: fructose 6-phosphate phos-photransferase (PFP) has been partially purifiedfrom ripening banana fruit. The kinetic proper-ties of the activation of banana PFP by Fru-2,6-P_2have been studied. Fru-2, 6-P_2 activated enzymeactivity of fructose 6-phosphate phosphorylationby decreasing K_m(F6P) and increasing V_(max)with a K_a of 30 nmol/L. The activatipn of PFPby Fru-2, 6-P_2 was affected by substrate concentra-tion (F6P). The K_a of Fru-2, 6-P_2 was decreasedfrom 34 nmol/L to 18 nmol/L with the increase...

Pyrophosphate: fructose 6-phosphate phos-photransferase (PFP) has been partially purifiedfrom ripening banana fruit. The kinetic proper-ties of the activation of banana PFP by Fru-2,6-P_2have been studied. Fru-2, 6-P_2 activated enzymeactivity of fructose 6-phosphate phosphorylationby decreasing K_m(F6P) and increasing V_(max)with a K_a of 30 nmol/L. The activatipn of PFPby Fru-2, 6-P_2 was affected by substrate concentra-tion (F6P). The K_a of Fru-2, 6-P_2 was decreasedfrom 34 nmol/L to 18 nmol/L with the increase ofFru-6-P concentration from 0.5 mmol/L to 14mmol/L at 25℃. The influence of temperatureat 10℃ to 40℃ on Fru-2, 6-P_2 activation ofPFP showed that the kinetic properties of thesaturation curve of Fru-2, 6-P_2 changed. En-zyme cooperativity became positive with the in-creased temperature (Hill number changed from0.8 to 1.3 at 10℃ to 40℃ ) and the K_a fro Fru-2,6-P_2 was decreased from 46 nmol/L to 22 nmol/L.The dependence of enzyme Fru-2, 6-P_2activation on Fru-6-P concentrations and tempera-ture indicated that the binding of enzyme withactivator Fru-2, 6-P_2 could be well modulated andwas significant for regulating PFP enzyme activityduring banana fruit ripening. Changes in the activities of PFP and ATP-dependent phosphofructokinase (PFK) wereobserved during banana fruit ripening. PFPactivity increased rapidly after 3~5 days of retar-dation and the activity of PFP was about 10--foldhigher than the activity of PFK at the 6th day(dimacteric peak). Treatment of banana fruitwith ethylene reduced the length of the preclimac-teric period of respiration which was associatedwith the activity of PFP and the progress of fruitripening. The function and regulation of PFP in fruitripening are discussed.

从成熟香蕉果实中部分纯化了焦磷酸:果糖—6—磷酸磷酸转移酶(PFP)。研究了酶的果糖—2,6—二磷酸的活化动力学特性.果糖—2,6—二磷酸通过降低酶的K_m(F6P)值和增进最大反应速度(V_(max))促进酶的果糖—6—磷酸磷酸化活性。底物(F6P)浓度和温度影响果糖—2,6—二磷酸对酶的活化作用。 本工作中还观察了香蕉成熟过程中PFP和依赖ATP的磷酸果糖激酶(PFK)活性的变化,并对PFP在果实成熟中的生理意义和调节特性进行了讨论。

The role of calcium in the activiation of murine peritoneal macrophages (Mφ) was studied. Mφ were primed for tumor cytolysis in a dose-dependent manner by both macrophage-activiating factor (MAF) and calcium ionopriore A23187. The kinetics curves of activiation by these two reagents were similar and there was no synergistic role bet ween.these two activiators. Addition of extracellular calcium chelator EGTA blocked the effect of A23187 and this role could be overcome by addition of high concentration of calcium...

The role of calcium in the activiation of murine peritoneal macrophages (Mφ) was studied. Mφ were primed for tumor cytolysis in a dose-dependent manner by both macrophage-activiating factor (MAF) and calcium ionopriore A23187. The kinetics curves of activiation by these two reagents were similar and there was no synergistic role bet ween.these two activiators. Addition of extracellular calcium chelator EGTA blocked the effect of A23187 and this role could be overcome by addition of high concentration of calcium but not magnesium. In contrast, EGTA hd no significant role on the activiating process induced by MAF. Furthermore, the tumor cytolysis mediated by Mφ treated with both A23187 and MAF was found to be depended on the trace amount of LPS triggering, these indicated that caicium is an important intracellular second signal for Mφ activiation by MAF and A23187, and play a priming role in the induction of macrophage-mediated tumor cytolysis.

以钙离子通道A23187(Calcium Ionophore A23187.A 23187)和巨噬细胞活化因子(Macrophage Activiating Factor.MAF)为激活剂(Activiating Reagent),初步观察了Ca~(++)在巨噬细胞(Macrophage,Mφ)活化中的作用。结果表明,和MAF一样,A2187在Mφ活化中主要起激发(Priming)信号作用,并与MAF有着相似的活化动力学过程,但A23187的活化作用依赖于胞外Ca~(++)的存在,且可被胞外钙离子选择性络合剂乙二醇双(二氨基乙基)四乙酸(EGTA)所阻断(MAF活化作用则否)。十四酰佛波乙酸酯(Phorbol Myristate Acetate,PMA)和佛波二丁酸酯(Phorbol Dibutyrate,PDBu)同时处理对A23187的活化作用有一定的抑制作用。

 
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