critical salinity

It was showed that,when the concentration of dosed NaCl solution reached the critical salt concentration,there would generate the phenomenon of particles releasing in sand column;in mixed salt solution,the existence of molar percent of Ca2+ would inhibit the .

试验结果表明,当加入NaCl溶液的浓度达到临界盐浓度时,砂柱中会产生颗粒释放现象;混合盐溶液中,Ca2+的存在会抑制颗粒的释放,即颗粒释放的临界离子强度值随着Ca2+摩尔百分含量的增加而降低;在相同盐浓度和振荡频率的条件下,溶液pH值越低,颗粒释放量越少;pH值越高,颗粒释放量越多。

The results indicate that critical salt concentration and critical flow rate exit on the saltwater-freshwater interface.

试验结果表明,咸淡水界面上存在临界盐浓度值和临界流速值,当入流溶液浓度达到临界盐浓度和流速达到临界流速时,都会产生颗粒释放现象,导致砂柱的渗透率下降,水敏性发生。

With horizontal seepage experiments,this paper analyzes the critical salt concentrations(CSC)of the different cations,by examining such solutions as NaCl,KCl,LiCl,NH_4Cl,CaCl_2 and MgCl_2,which can cause the particle release of water sensitivity of porous media.

通过水平渗流试验,以NaCl,KCl,LiCl,NH4Cl,CaCl2和MgCl2溶液为研究对象,分别测定不同阳离子引起微粒释放、导致多孔介质水敏感性发生的临界盐浓度值(CSC)。

The impacting factors on the particle release in porous media is analysed according to colloid and surface chemistry theories,such as critical fluid velocity,critical salt concentration,critical ratio of salinity decrease,critical ionic strength and pH value etc.

本文在大沽河下游自然地理、地质、水文地质条件调查的基础上,结合样品(砂样、水样和粘土矿物)的采集、处理以及物理组成与化学性质分析,通过室内批量试验和砂柱试验,应用胶体化学和界面化学理论深入分析了多孔介质微粒释放过程的影响因素,包括临界流速、临界盐浓度、临界盐浓度递减率、临界离子强度和pH值。

The correlation and regression analyses were done between the indexes of germination,growth and vigor and salinity,through which the critical concentrations of E.

采用室内控制实验的方法,系统研究了沙枣和柠条种子萌发、生长、活力以及生理过程;对萌发、生长及活力指标与盐胁迫进行相关与回归分析,发现了实验室条件下沙枣和柠条种子萌发期的耐盐临界值;对生理指标与盐胁迫,生理指标与相应的萌发及生长指标进行相关性分析,在生理水平对沙枣和柠条种子萌发期对盐胁迫的响应进行了解释。

Mensuration of Critical Salt Concentration of Particle Release in Aqueous Medium

含水介质中粘粒释放的临界盐浓度测定

The Influence on the Critical Micelle Concentration of Anionic Surfactant Mixed with Inorganic Salt;

无机盐的存在对阴离子型表面活性剂临界胶束浓度的影响规律

dye absorption spectra method

染料吸收光泽谱法（测临界胶束浓度）

critical oxygen determinator

临界氧浓度测试仪（耐燃性试验）

The greater the enrichment, the less the critical mass.

浓缩程度越大，临界质量越

Experimental Research on Chloride Threshold Level for Reinforcement Corrosion;

钢筋腐蚀临界氯离子浓度的试验研究

Experimental Research of Chloride Threshold in Concrete;

混凝土中临界氯离子浓度的试验研究

Effect of corrosion inhibitors on the chloride threshold values of reinforcing steel

钢筋阻锈剂对临界氯离子浓度的影响

In this study they attempted to predict the critical micelle concentration (CMC).

在研究中，他们尝试着预测临界胶态粒子浓度(CMC)。

Study on the Determination of cmc by Double-point Ultra-filtration

双点式超滤法测定临界胶束浓度的研究

Study on Oxidation of Organic Compound Containing Nitrogen in Supercritical Water;

超临界水氧化高浓度含氮有机废水研究

Study on the Pathogenesis and Critical Value of Hyperoxic Lung Injury in Neonatal Rats;

新生鼠高浓度氧肺损伤机制及临界值的研究

Development and Application of Critical Nitrogen Concentration Dilution Model for Cotton;

棉花临界氮浓度稀释模型确定及其应用研究

Study on Cl~- Critical Concentration in Active Dissolution of Al-Zn-In-Si-Mg;

Al-Zn-In-Si-Mg合金活性溶解的临界氯离子浓度研究

Research progress for critical micelleration concentration of aqueous ionic liquid

离子液体水溶液临界胶束浓度的研究进展

Effect of salt concentrations on the adsorption of denatured Ribonuclease A on the liquid/solid surface

盐浓度对变性核糖核酸酶在液/固界面吸附的影响

nitrate and chloride concentrations

硝酸盐和氯化物浓度

increased concentration of nitrates in water

水中硝酸盐浓度的增加