When the proportion of polymer and cement is high , the continuous phase is made up of polymer , the inorganic particles are dispersed in the polymer phrase , so the films have good extensional performance and low temperature flexibility ; when its proportion is low , the hydrated cement forms the local rigid gel network , so extensional performance and low temperature flexibility of films reduce obviously , but the resistance to water , ultraviolet and thermal ageing of films is improved 高聚灰比时,聚合物构成了连续相,水泥等以粒状分散在聚合物中,涂膜具有优良的延伸性和低温柔性;低聚灰比时,水泥水化形成了刚性的局部凝胶网络,使涂膜的延伸性和低温柔性都显著降低,但可提高涂膜的耐水、耐紫外老化和耐热老化能力。
Substituted by a densimeter based on the archimedes laws , the online concentration measurement was further modified , and the quality of the measured data was improved with satisfactory accuracy and repeatability . nevertheless , information obtained from the continuous phase ( concentration or supersaturation measurements ) was still not enough to completely define the system 为此,本文基于阿基米德定律,采用密度法改进了实验装置,实现了对结晶过程中溶液浓度或过饱和度的连续在线测量,并提高了测定精度,所测得实验数据具有较好的重现性。
Through the analysis on the process of hydrological time - series data mining , we can find that there are many similar parts in this process in spite of the complex composition of business logic application . therefore , the process of time series comparability search is composed of three continuous phases , such as data pretreatment , characteristic mode mining and comparability measurement . there are a lot of different algorithms performing same function in every data mining phase 经过对水文时间序列数据挖掘过程的分析,可以得到,虽然其中的业务逻辑构成比较复杂,但其基本成份却有许多相同或相似的部分,所以,一般可以将时间序列相似性搜索的过程分为数据预处理、特征模式挖掘和相似性度量等几个连续的阶段,而每个阶段里都有许多完成相同功能的基本算法。
Direct digital synthesizing is a new frequency synthesizing technology , which adopts phase increment controlled by digital . it has so many virtues such as high frequency relution , fast frequency switching ability , continuous phase , low phase noise and integration easily for its numberic operation that has been adopted widly 直接数字合成dds ( directdigitalsynthesize )是新一代的频率合成技术,它采用数字控制信号的相位增量技术,具有频率分辨率高(可达mhz至hz量级) ,频率切换快(可达几十ns量级) ,频率切换时相位连续和相位噪声低以及全数字化易于集成等优点而被广泛采用。