A radiotraler method and a membrane concentration potential method were established to determine the sodium ion transport numbers. 建立了放射性示踪原子法和膜浓差电位法测定钠离子迁移数。
To investigate the effect of lactate solution of different concentration on action potential of ventricular papillary muscle cell and contractile force. 目的:研究乳酸对家兔离体心室乳头肌收缩力和细胞动作电位的影响。
Credit Paradox has long made concentration risk a potential burden on commercial banks. 信贷悖论一直以来使商业银行不得不承受信贷资产集中的风险。
Research Progress in Changes of Ion Concentration on Membrane Potential and Skeletal Muscle Fatigue 离子浓度改变对骨骼肌膜电位和骨骼肌疲劳的研究进展
Because of its high charge density, low CMC and low Krafft point, superlow interfacial tension is observed for its mixture with high carbon number paraffin at low concentration, demonstrating great potential in petroleum exploitation. 由于其电荷密度高,临界胶团浓度低,并且有很低的Krafft点,能在低浓度下与高碳烷烃形成超低界面张力,在石油开发中有着很好的应用前景。
The effects of temperature, medium concentration, potential and molybdenum element on corrosion types and their intensities were determined. 确定了温度、介质浓度、电极电位和合金元素钼对各种腐蚀类型及腐蚀强度的影响;
Electrochemical oscillations in HCl medium induced by the adsorption and desorption of the organic inhibitor on a rotating iron electrode in the active potential region of iron are observed and investigated. The effects of the inhibitor concentration, potential and stirring on the oscillation are studied. 研究了HCl介质中活性电位区有机缓蚀剂在Fe电极表面吸脱附诱导产生的电化学振荡现象,及缓蚀剂浓度、电极电位和溶液搅拌等因素对振荡行为的影响。
In the use of SBR process for treatment of chemical wastewater with high NH3-N concentration, investigation was made for the effect of oxygen supply on Dissolved Oxygen ( DO), mass Concentration, Oxidation-Reduction Potential ( ORP) and pH variation in nitrification process. 考察采用SBR法处理氨氮浓度较高的化工废水时供氧方式对硝化过程中溶解氧(DO)质量浓度、氧化还原电位(ORP)和pH变化规律的影响。
The relationship of oxygen concentration potential and excess air ratio is nonlinear, it may be approached by replacing nonlinear functions by linear expressions that describes the behavior sufficiently well for purposes of analysis and design. 氧浓差电势与空气过剩系数呈非线性关系,这样的非线性问题可以借用线性表达式代替非线性函数来处理,而该线性表达式所描绘的特性能很好地满足分析和设计的目的。
Effects of membrane morphology, membrane fouling and concentration polarization on streaming potential 膜形态、膜污染和浓差极化对流动电位的影响
The relationship of soil moisture condition and cell sap concentration and leaf water potential were studied on soybeans at different growing stages. The results shown that all the plant-water physiological indexes had a close relativity with the soil water content. 大豆不同生育阶段的土壤水份状况与叶细胞浓度和叶水势关系的研究结果表明,上述水份生理指标与土壤湿度呈极显著的相关。
With the decrease of pH and the increase of Cl-concentration, pitting corrosion potential ( E b) shifted negatively. pH的降低和Cl-浓度的升高,使孔蚀电位负移。
But with decreasing pH and increasing Cl-concentration, pitting corrosion potential ( Eb) shifts negatively, and the pitting corrosion sensibility is promoted. pH值的降低和Cl浓度的升高,使孔蚀电位Eb值负移,孔蚀敏感性增大。
The three-dimensional mathematical model of gas transport for planar anode-supported solid oxide fuel cell ( SOFC) has been developed in this paper. The performance of a single cell was investigated from the gas concentration distribution, potential distribution and concentration overpotential respectively. 该文建立了平板状阳极支撑固体氧化物燃料电池气体输运三维模型,并对单电池作了数值模拟,分别从气体浓度分布、电势分布及浓度过电势来评价电池性能。
The negative logarithm ( pCl) of chloride ion concentration was linear with the concentration potential. 氯离子的摩尔浓度的负对数(pCl)与其浓度电位呈线性关系。
The effect of temperature, medium concentration and potential on various corrosion types and thier intensities was determined. 测定了温度,浓度和电极电位对各种腐蚀类型及腐蚀强度的影响。
In the Antarctic water, the Southern Atlantic Ocean is the most fertile, where chlorophyll a concentration and potential primary productivity were more than those in the Drake Passage and the Southern Indian Ocean. 在环绕南极的大洋中,南大西洋海域营养物质丰富,海水最为肥沃,叶绿素a浓度和初级生产力高于南印度洋和德雷克海峡。
The principle of crosslinking is studied and the effects of hydrolysis conditions and the concentration of potential crosslinker on fiber waterabsorbency are also discussed. 文中讨论了潜交联剂的交联原理以及其含量和水解条件对纤维吸水性能的影响,还对水解过程中纤维结构的变化进行了研究。
The effects of temperature, pH, Cl~-and SO~ ( 2-)_4 concentration on pitting potential of 321 stainless steel were investigated by using quadrature test design and contrastive test. 通过正交设计和对比实验研究了温度、pH值以及Cl-和SO42-含量对321不锈钢点蚀电位的影响。
The effect of various factors on the percentage of chelation was studied by spectroanalysis ( UV, IR) and electrochemical analysis ( concentration potential). 通过光谱分析(UV,IR)和电化学分析(浓差电位),重点考察了不同因素对复合氨基酸锌络合程度的影响。
Simulation studies in the laboratory and in the field were conducted to determine the effects of various environmental parameters including pH, temperature, dissolved oxy-gen concentration, redox potential and the type of overlying water on phosphorus release rate and release capacity from the sediments. 通过实验室和现场模拟研究,考察了pH、温度、溶解氧、氧化还原电位及上复水种类等环境因素对底泥释磷量和释磷速率的影响。
Results of species concentration, potential and temperature distributions for co-flow and counter-flow cases were presented. 研究给出了燃料气与空气在同向流与反向流情况下组分浓度、电压与温度分布。
Methods The distribution of single-channel parameters were calculated in the different Mg ion concentration and holding potential based on 3-and 4-state model and compared it with data from experiment. 方法分别采用3-态模型和4-态模型进行模拟,计算不同Mg~(2+)浓度和电压下通道状态参数的分布,并同实验测定结果进行比较。
The potential region in which the current oscillations took place and the oscillation amplitude were found to be dependent on temperature, solution concentration, potential sweep rate, and electrode rotation rate. 振荡电流所对应的电位范围以及电流振荡幅度与溶液温度,硫酸浓度、电位扫描速度以及电极旋转速度存在着对应关系。
With the increase of the volume ratio ( acetonitrile-diethylamine) and electrolyte concentration, the pitting potential Eb unchanged, Current density and the electrochemical dissolution of tantalum plate velocity increased. 研究表明:随着乙腈与二乙胺体积比的升高和电解质浓度的增大,电流密度增加越来越明显,钽板的电化学溶解速度增大,但腐蚀电位Eb保持不变。
Meantime, we also realized that the adjustment of surfactant concentration on the Zeta potential for the former was much higher than the latter. 同时我们也发现,表面活性剂的浓度变化对于前一体系中微纳颗粒表面Zeta电势的调控作用要明显高于后者。
Direct potentiometry, one of the two potentiometry methods, is called ion-selective electrode ( ISE) method, which carrys out the quantitative analysis by converting the live degree or concentration of ion into potential signal by using ion-selective electrode ( i.e. membrane electrode). 而直接电位分析法是两大电位分析方法之一,又被称为离子选择性电极法。即利用离子选择性电极(又叫膜电极)把被测离子的活度或浓度表现为电极电位而实现分析测定。
In this experiment, optimal experimental conditions such as buffer solution, pH, ethanol concentration, initial potential, scan rate were selected. 试验中对实验条件(缓冲液、pH值、乙醇用量、初始电压、扫速等)进行了优选,确定了最佳实验条件。
The results indicated that initial chloroform concentration, applied potential, and light intensity had significant influence on the degradation of chloroform. 结果表明,氯仿溶液初始浓度、外加偏压和光照强度等对氯仿降解率有较大影响。