| 1. | Standard test method for volume shrinkage of latex sealants during cure
凝固过程中胶乳密封剂体积收缩的标准试验方法 |
| 2. | Products and systems for the protection and repair of concrete structures - test methods - shrinkage of crack injection products based on polymer binder : volumetric shrinkage
混凝土结构的保护和维修用产品和系统.试验方法.基于高聚物粘合剂的裂缝注入产品的收缩率:体积收缩率 |
| 3. | Products and systems for the protection and repair of concrete structures - test methods - part 2 : shrinkage of crack injection product based on polymer binder : volumetric shrinkage
混凝土构件的保护和维修用产品和系统.试验方法.第2部分:基于高聚物粘合剂的裂缝注入产品的收缩率:体积收缩 |
| 4. | On the surface of phbv spherulite , some concentric ring like patterns will occur . based on the procedure of the formation of ring - like patterns , the possible mechanism is given
在球晶的表面出现有同心圆环状条纹，经实验验证为表面的不平整所导致，形成机理主要可能是结晶过程中的体积收缩。 |
| 5. | The pyrolysis of dvb / hpso and vpso / hpso can both be divided into two stages . the apparent activation energies of the first stage of dvb / hpso and vpso / hpso are 208 . 38kj / mol and 234 . 4 ikj / mol , respectively
在40wt % sic声si一o一c中加入al能进一步减少先驱体裂解时的体积收缩，同时也能起到增强作用。 |
| 6. | The physical damage models of carbon fibers are established , which are matrix shrink stress damage model , thermal tension stress damage model , thermal bend stress damage model and thermal shear stress damage model
由此建立了碳纤维的四种热应力物理损伤模型，即基体体积收缩应力损伤模型、热应力拉伸损伤破坏模型、热应力弯折损伤破坏模型和热应力剪切损伤破坏模型。 |
| 7. | 3 ) this paper realizes three other filter methods and analyses their different results . 4 ) this paper proposes two improved methods base on analyzing the series of laplacian filter . the improved methods keep shape or feature while smoothing the mesh
4 )在分析和比较的基础上，针对laplacian方法容易丢失特征和体积收缩大的缺点，提出了laplacian方法的两种改进算法，改进后的算法在滤波除噪的同时，较好地保持了模型特征，减少了体积收缩。 |
| 8. | The results show that pso pyrolysis matrix has low hardness and good extensibility which can relax stress concentration in matrix and interface , and damages carbon fibers slightly . however , psz derived matrix damages carbon fibers largely in physical and chemical ways
结果表明， pso裂解后生成的基体硬度较小且延伸性好，可以缓解基体及界面的应力集中，碳纤维强度保留率较高； psz裂解过程中除了体积收缩对碳纤维带来物理损伤外，还与碳纤维发生严重的化学反应，使碳纤维强度大幅下降。 |
| 9. | Volume shrinkage of sample results in the increasing of the value of the crystallization rate vc and the decreasing the values of the avrami exponent n in the primary crystallization and s , defined as the relative crystallinity degree when experiment data deviate theoretical predicting straight line . compared with the avrami equation , the price equation hardly makes progress on describing the behavior of polymer later stage crystallization
样品体积收缩，导致avrami指数n值减小；结晶速度v _ c值增加；表示实验值偏离理论预测直线时的相对结晶度_ s值减小；与avrami方程相比， price方程仍不能较准确地描述高聚物等温后期结晶行为。 |
| 10. | There is an old saying in our field - " no dam is not crackable " . the crack is mainly because of the bad dilation after " alkali - aggregate reaction " , the temperature traverse inside and outside the concrete with the happening of heat evolution and the shrink of volume due to the cooling of concrete
水电行业有句“无坝不裂”的俗话，产生裂缝的原因主要有“碱集料反应”造成的破坏性膨胀，水泥水化过程中放出的热量出现的混凝土内外温度梯度和水泥石硬化后由于后期降温发生的体积收缩等造成。 |
