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ph dependence
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  ph依赖性
     pH DEPENDENCE OF PMR PARAMETERS OF SERINE AND ITS La COMPLEX
     丝氨酸及其La~(3+)配合物的~1H核磁共振谱参数的pH依赖性
短句来源
     The characteristics of active Caspase-1 were investigated, including DTT influence, pH dependence, the kinetics of enzyme reaction and inhibition by positive inhibitor.
     通过对Caspase-1的一系列酶学特性,包括DTT的影响、pH依赖性、动力学分析及阳性抑制剂抑制作用分析,优化Caspase-1的活性检测方法,建立了Caspase-1抑制剂高通量筛选的标准化操作流程。
短句来源
     Kinds and pH dependence of proteolytic enzyme in normal monkey (Macaca mulatta tcheliensis) reproductive system, urinary system and immunitive system were studied by application of 1D G PAGE and 2D G PAGE.
     为了系统研究太行山猕猴(Macacamulatatcheliensis)生殖、泌尿、免疫系统各器官蛋白水解酶的种类和性质,用活性单向电泳(1D-G-PAGE)和活性双向电泳(2D-G-PAGE)方法研究了太行山猕猴生殖系统、泌尿系统和免疫系统中蛋白水解酶种类和酶活性的pH依赖性
短句来源
     According to altered Vmax and Km values permethrin showed anuncompetitive inhibition,which had certain pH dependence while cypermethrin a noncompetitive inhibition which was pH independent,and this was indicated by the same alteration of kinetic parameters as inhibition on Ca2+-ATPase by permethrin. The possible relation between inhibited Ca2+-and Ca2+,Mg2+-ATPase activities and the neurotoxicity of pyrethroids was discussed.
     且有一定的pH依赖性,而氯氰菊酯为非竞争性抑制,其抑制率基本不受pH的影响,表明这两种杀虫剂在Ca~(2+) ,Mg~(2+)—ATP酶上有不同的结合位点.
短句来源
     Objective To study the pH dependence of Changankang Capsules (CC) through their drug release investigation in vitro.
     目的 对肠安康胶囊的pH依赖性进行体外释药考察。
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  “ph dependence”译为未确定词的双语例句
     pH dependence of the chemical shifts of NAD~+, etheno-NAD~+(εNAD), NMN~+,etheno-AMP (εAMP)and an equivalent mixture of ∈AMP and NMN~+ have been inves-tigated by proton nuclear magnetic resonance at a concentration level of 0.005M.
     在5mM浓度下,测定了NAD~+、εNAD~+、NMN~+、εAMP和(εAMP+RMN~+)混合物的化学位移与pH依赖关系。
短句来源
     pH Dependence of Photosynthetic Characteristics of Plant Photosystem I Particles
     依赖于pH的光系统I的光合特性
短句来源
     The results herein show:(1) The redox potentials of p-CoTAPc are shifted to positive direction with the increasing of acidity, and the pH dependence of the redox potentials is -61 mV / pH slope.
     (1)随着酸度的增加p-CoTAPc氧化还原电位向正电位方向移动,并且两者存在线性关系,斜率为-61mV/pH。
短句来源
     pH dependence of the chemical shifts of NAD~+, etheno-NAD~+ (εNAD), NMN~+, etheno-AMP (εAMP)and an equivalent mixture of εAMP and NMN~+ have been investigated by proton nuclear magnetic resonance at a concentration level of 0.005M.
     在5mM浓度下,测定了NAD~+、sNAD~+、NMN~+、sAMP和(sAMP+NMN~+)混合物的化学位移与pH依赖关系。
短句来源
     In the case of active carbon Pt does not change the pH dependence of φ_s and the overpotential η_s of the onset of CO_2 evolution (they follow broken lines deflecting near pH = 7) while the situation is more complicated for acetylene black.
     对于活性炭,Pt并不改变CO_2的φ_s-pH及η_s-pH曲线的形状(η_s-CO_2开始析出的超电势)(即无论有无Pt它们均为折点在pH~7的折线). 然而乙炔黑的情况更为复杂.
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  相似匹配句对
     and Ph.
     及槽里黄刚竹Ph.
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     , Ph.
     ,Ph.
短句来源
     Afterwards, the pH dependence of the enzyme was assayed.
     在进行纯化后对其进行了pH稳定性的检测。
短句来源
     DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE
     砷酸盐的溶解度及其稳定性随pH值的变化
短句来源
     DEPENDENCE" IN TRANSLATION
     翻译中的“路径依赖”
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  ph dependence
This hollow structure shows perfect reversible size-pH dependence.
      
The pH dependence of the enzymatic activity, thermostability, and catalytical and electrocatalytical properties of the modified laccase are reported.
      
Diurnal fluctuations of protein contents and the pH dependence of β2-microglobulin stability in urine
      
Kinetics and pH Dependence of Light-Induced Deprotonation of the Schiff Base of Rhodopsin: Possible Coupling to Proton Uptake an
      
We then examined the pH dependence of both the absorption spectrum of the unphotolyzed state and the amplitude and kinetics of Meta II formation in bovine rhodopsin.
      
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The anodic oxidation of antimony in sulphuric acid, in hydrochloric acid, and in potassium hydroxide solutions has been studied by measuring the polarization curves and by using the A. C. bridge to determine the electrode capacity and ohmic resistance for the investigation of the change of surface conditions in the course of oxidation. The empirical relations of polarization potential φ with current density i and pH at 25° are as follows:In 1—13.4 N potassium hydroxide solutions,φ=a + 0.116 log i — 0.115...

The anodic oxidation of antimony in sulphuric acid, in hydrochloric acid, and in potassium hydroxide solutions has been studied by measuring the polarization curves and by using the A. C. bridge to determine the electrode capacity and ohmic resistance for the investigation of the change of surface conditions in the course of oxidation. The empirical relations of polarization potential φ with current density i and pH at 25° are as follows:In 1—13.4 N potassium hydroxide solutions,φ=a + 0.116 log i — 0.115 pHin 1—12.4 N sulphuric acid solutions,φ=a′+ 0.024 log i — 0.048 pHin 1—12 N hydrochloric acid solutions,φ=a″ + 0.024 logi + 0.051 pHThe rate of dissolution in KOH and in HCl at constant potential increased with the increase of OH- and Cl- concentration respectively; while in H_2SO_4, it decreased with increasing acid concentration. The pH dependence of the dissolution rate, λ=((?)log i/(?)PH)_φ, was estimated in each case.Theoretical data analysed in terms of electrochemical kinetics suggest the following mechanism for the anodic oxidation.In KOH, OH~- → OH_(ads.)+e~-, OH_(ads.)+OH~-→H_2O+O~-, Sb + O~-→SbO_(ads.) +e~-,2 SbO_(ads.) + O~-→Sb_2O_3 + e~-, Sb_2O_3 + O~- → Sb_2O_4 + e~-, 2 Sh_2O_4 → Sb_2O_3 + Sb_2O_5. The first step is regarded as rate-controlling.In H_2SO_4, H_2O~-→O~- + 2H~+ + e~-, Sb + O~- → SbO_(ads.) + e~-, SbO_(ads.) → SbO~+ + e~-,SbO~++ O~-→SbO_2~+ + e~-; and in HCl, the first and second steps are the same, then ShO_(ads.) + 2HCl → SbCl_2 + H_2O, SbCl_2 + Cl~- → SbCl_3 + e~-, and SbCl_3 + Cl~- → SbCl_4~-. The rate of the process is determined by the third step in each case.Accumulation of the oxidation products, Sb_2O_3, Sb_2O_5 and O_(ads.,) on the electrode surface to a thickness of 3—5 molecular layers leads to passivation in both acid and alkaline solutions. The evolution of oxygen is possibly the consequence of discharge of O- on the passive surface.

本文用经典极化曲线的方法和交流电测定电极表面状态的方法,对锑在氢氧化钾、硫酸和盐酸中的阳极过程进行研究,获得如下的结果: 1.锑的阳极电位φ与极化电流密度i及pH之间的关系可由公式表示:φ=a+ blogi—b′pHo在1—13.4N氢氧化钾溶液中,b=116毫伏,b′=115毫伏;在1—14N硫酸中,b=24毫伏,b′=48毫伏;在1—12N盐酸中,b=24毫伏,b′=—48至—54毫伏。a为常数。 2.溶液pH对锑的阳极溶解速度的关系,λ=((?)logi/(?)pH)_φ,在氢氧化钾溶液中,λ=1;在硫酸中,λ=2;在盐酸中λ′=((?)logi/(?)pH)_φ=+2:即溶解速度在氢氧化钾或盐酸中随浓度增长而加速;在硫酸中则相反。 3.假设锑在这些介质中的阳极反应具共同的基本步骤:Sb+O~-→SbO_吸+e~-,在氢氧化钾溶液中,过程的进行依靠类似的步骤,使SbO继续氧化而逐步形成Sb_2O_3,Sb_2O_4;后者在溶液中因不稳定而歧化为Sb_O_3及Sb_2O_5。O~-假定通过如下步骤形成:OH~-→OH_吸+e~-,OH_吸+OH~-→O~-+H_2O。前者如为控制步骤则与实验数据相符合。在...

本文用经典极化曲线的方法和交流电测定电极表面状态的方法,对锑在氢氧化钾、硫酸和盐酸中的阳极过程进行研究,获得如下的结果: 1.锑的阳极电位φ与极化电流密度i及pH之间的关系可由公式表示:φ=a+ blogi—b′pHo在1—13.4N氢氧化钾溶液中,b=116毫伏,b′=115毫伏;在1—14N硫酸中,b=24毫伏,b′=48毫伏;在1—12N盐酸中,b=24毫伏,b′=—48至—54毫伏。a为常数。 2.溶液pH对锑的阳极溶解速度的关系,λ=((?)logi/(?)pH)_φ,在氢氧化钾溶液中,λ=1;在硫酸中,λ=2;在盐酸中λ′=((?)logi/(?)pH)_φ=+2:即溶解速度在氢氧化钾或盐酸中随浓度增长而加速;在硫酸中则相反。 3.假设锑在这些介质中的阳极反应具共同的基本步骤:Sb+O~-→SbO_吸+e~-,在氢氧化钾溶液中,过程的进行依靠类似的步骤,使SbO继续氧化而逐步形成Sb_2O_3,Sb_2O_4;后者在溶液中因不稳定而歧化为Sb_O_3及Sb_2O_5。O~-假定通过如下步骤形成:OH~-→OH_吸+e~-,OH_吸+OH~-→O~-+H_2O。前者如为控制步骤则与实验数据相符合。在硫酸中则以共同步骤形成的中间物SbO失去电子而成SbO~+为控制步骤。在盐酸中因氧化膜SbO被氯离子破坏而生成络离子SbCl_4~-为控制步骤。在酸中,O~-假定是由水分子的单电子放电产生:H_2O→O~-+2H~++e~-。 4.由于氧化产物(Sb_2O_3,Sb_2O_5及吸附氧原子)在电极表面的积累,不论在酸或碱中,形成3—5个分子层,才导致表面钝化。氧的逸出发生在稳定钝化区的电位,这可能是O~-在钝化表面继续放电的结果。

Segments of wheat seedlings were treated with H_2SO_3 solution as a model system to investigate the influence of pH of leaf tissue on the SO_2 injury of plants, taking the production of ethane, the leakage of K~+ and the destruction of chlorophyll as indices of degree of injury of leaf tissue. Heavier injury was observed as the pH of incubation medium was lowered. The action of pH is mainly due to its effect on the partition of sulfur among the three forms present in H_2SO_3 solution—SO_3~=,...

Segments of wheat seedlings were treated with H_2SO_3 solution as a model system to investigate the influence of pH of leaf tissue on the SO_2 injury of plants, taking the production of ethane, the leakage of K~+ and the destruction of chlorophyll as indices of degree of injury of leaf tissue. Heavier injury was observed as the pH of incubation medium was lowered. The action of pH is mainly due to its effect on the partition of sulfur among the three forms present in H_2SO_3 solution—SO_3~=, HSO_3~- and undissociated H_2SO_3 molecules. Within the range of pH 2~5, where HSO_3~- is the predominant form, tissue injury occurs heavily. At pH>5, where SO_3~= becomes the major component in the solution, injury has been slight. Below pH2, where the most abundant component is H_2SO_3, severe damage occurs owing to the strong acidity, but not to H_2SO_3 itself. The curve relating injury to pH runs nearly parallel to the pH- dependence curve of proportion of HSO_3~-, but both having a climax at pH 3~4 are quite different from that of SO_3~= or H_2SO_3, HSO_3~- is the major toxic factor, whereas SO_3~= and undissociated H_2SO_3 molecules are less toxic.

以H_2SO_3溶液处理小麦苗切段作为模式系统,以乙烷产生、K~+外渗和叶绿素破坏作为组织受损伤的指标,研究了pH对植物受SO_2伤害的影响。试验结果指出,当处理溶液的pH值降低时,组织受害加重。pH主要是由于对溶液中存在的SO_3~(2-)、HSO_3~-和不解离的H_2SO_3分子这三种形式的分配的影响而起作用的。在pH2~5范围内HSO_3~-占优势,组织受害重;pH>5,溶液中存在的离子主要是SO_3~(2-)受害轻;pH<2,溶液中最多的是H_2SO_3,出现的严重损伤是由于强酸性引起,而不是由于H_2SO_3本身的作用。伤害和pH的关系曲线与依赖于pH的HSO_3~-分配曲线非常一致,高峰都在pH3~4,但和SO_3~(2-)s或不解离的H_2SO_3分子的分配曲线迥然不同。HSO_3~-是起毒害作用的主要因素,而SO_3~(2-)及H_2SO_3分子的毒性不大。

pH dependence of the chemical shifts of NAD~+, etheno-NAD~+ (εNAD), NMN~+, etheno-AMP (εAMP)and an equivalent mixture of εAMP and NMN~+ have been investigated by proton nuclear magnetic resonance at a concentration level of 0.005M. In the comparisons of the chemical shifts of corresponding preens of the bases between εNAD~+ and NAD~+ as well as between εNAD and the mixture of cAMP and NMN+ based on ring current magnetic anisotropy, it is suggested that NAD~+ in D_2O may exist in two conformational forms...

pH dependence of the chemical shifts of NAD~+, etheno-NAD~+ (εNAD), NMN~+, etheno-AMP (εAMP)and an equivalent mixture of εAMP and NMN~+ have been investigated by proton nuclear magnetic resonance at a concentration level of 0.005M. In the comparisons of the chemical shifts of corresponding preens of the bases between εNAD~+ and NAD~+ as well as between εNAD and the mixture of cAMP and NMN+ based on ring current magnetic anisotropy, it is suggested that NAD~+ in D_2O may exist in two conformational forms with a pK_α of 3.88: it exists as an internally stacked form at pH above 3.88 and in an open conformation at lower pK_α.

在5mM浓度下,测定了NAD~+、sNAD~+、NMN~+、sAMP和(sAMP+NMN~+)混合物的化学位移与pH依赖关系。根据环流各向异性屏蔽效应,通过比较sNAD~+与等量混合物(sAMP+NMN~+)的对应碱基质子化学位移,以及比较sNAD~+与NAD~+的烟酰胺质子化学位移,发现在水溶液中的游离NAD~+以pK_a3.88为转折,处于不同构象:在pH3.88以下,NAD处于伸展构象;在此值以上,NAD~+处于折迭构象。

 
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