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- A dynamic module damage model was built to predict the dynamic strength and maximum dynamic module of the silty clay after every freeze thaw cycle. 建立了动模量损失模型，能够预测每一次冻融循环后的动强度和最大动模量。
- freezing thawing cycle 冻熔循环
- The built prediction model is characterized by high precision, can be used to evaluate the effect of the freeze thaw cycles on the service life of the silty clay roadbed. 通过与试验对比可知，预测模型具有较高的精度，可以用来评估冻融循环对粉质黏土路基使用寿命的影响。
- The result shows that the strength of rock evidently reduces with the increase of number of freezing and thawing cycle. 此外也分析了岩石边坡侵蚀过程的机理及影响因素，随着冻融次数的增加，岩石的抗压强度显著降低。
- On the basis of the results obtained from comparison teats of fly ash soils and silty clay on dynamic strength under freeze thaw cycles, the dynamic strength was quantitatively analyzed. 摘要根据粉煤灰土和粉质黏土经过冻融循环后动强度的对比试验，对粉煤灰土和粉质黏土的动强度做出了定量分析。
- Experimental study on the strength and deformation of concrete under biaxial tension-compression in freezing thawing cycles 冻融环境下混凝土双向拉压强度与变形特性的试验研究
- Keywords cement-based material;freeze thawing cycle;self-healing;ionic transmission;impermeability; 水泥基材料;冻融循环;自修复;离子传输;抗渗性;
- freeze thawing cycle 冻融循环
- There are two basic frost durability problems: internal cracking due tofreezing and thawing cycles, and surface scaling, generally due to freezing inthe presence of deicer salts. 由冻融循环产生的内部开裂和除冰盐存在下冻结产生的表面剥蚀是抗冻耐久性的两个基本问题。
- Freezing thawing durability of both ordinarily and air entrained concrete exposed to Xinjiang, Qinghai, Inner Mongolia and Xizang salt lakes were determined by the accelerated freezing thawing method. 用快冻法研究了普通混凝土与引气混凝土在水和西藏、内蒙古、新疆和青海盐湖卤水中的抗冻性。
- DSC and mechanical tests have been employed to investigate the influence of freezing，thawing，dehydrating and irradiating upon th crystallity and the mechnical properties of PVA-hydrogel. 通过差示扫描量热法（DSC）及相应的力学性能试验研究反复冷冻融化、真空脱水和辐照交联对PVA-水凝胶结晶和力学性能的影响。该PVA-水凝胶的力学性能与人关节软骨相近，可望用于人工软骨材料。
- Based on the test results of saline soil samples of twelve places (Kashi, Sinkiang, China), the representative crude saline soil samples were selected for the experiment of freezing and thawing cycles in laboratory. 摘要通过对新疆喀什地区12处天然盐渍土室内基本性质试验分析，选取典型天然盐渍土，在开放系统中进行反复冻融循环条件下的试验研究。
- The CMO ORF was cloned and the plant expression vector pBI121-CMO was constructed. The resultant plasmids pBI121-CMO was transferred into Agrobacterium tumefaciens (GV3101) by the liquid nitrogen freezing thaw method. 克隆了CMO基因的编码区,构建了其植物表达载体pBI121-CMO,冻融法将质粒导入根癌农杆菌(Agrobacterium tumefaciens)GV3101,获得工程菌GV3101-pBI121-CMO。
- In this experiment PST lipsome was produced by freeze thawing method. 采用冰冻熔融法制备脂质体,包封率进行测定可达29%25。
- freeze thaw cycles 冻融循环
- Experimental study on concrete behavior under biaxial compression after freezing and thawing cycle 冻融循环后混凝土双轴压的试验研究
- The effects of PVP in formulation and freeze thawing steps on drug leakage and aggregation of tanshinone liposomes were investigated. 考察了聚乙烯吡咯烷酮(PVP)以及冻融处理对丹参酮脂质体的药物渗漏和微粒聚结特性的影响。
- This artic le has discussed the advantage of different kinds of prepartions:reverse_phase e vaporation, crush, freeze thawing . 通过对其包裹率的测定，结果表明：反相蒸发法包裹率高，反相蒸发法为最佳工艺。
- DURABILITY AND SERVICE LIFE PREDICTION MODEL FOR FREEZING AND THAWING CYCLE OF HIGH STRENGTH CONCRETE 高强混凝土的抗冻性与寿命预测模型
- The paper studied the Solubilizing effect of solvent extraction, freeze thawing, ultrasonication, phosphoric acid treating and enzymatic hydrolysis on Spirulina dried Powder. 对溶剂浸提，反复冻融，超声波处理，磷酸处理和酶解技术对螺旋藻粉的增溶效果进行了比较。
