procedural network
- procedural network的基本解释
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[计] 过程网络
- 更多网络例句与procedural network相关的网络例句 [注:此内容来源于网络,仅供参考]
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Producted RF and CRF aerogels by process of sol-gel technics, dynamic-exchange, CO2 supercritical drying, and procedural increase in temperature carbonization methods, which have eximious capability and nanometer network structure; Systemic analysis various factors which effect gel course, such as ratio of reactants and the dosage of catalyst, and probed into the better experiments conditions(the concentration of resorcinol and formaldehyde is more than 2% and the value of R/C is between 50 and 300); During gel course , primary investigated the viscosity curve and particle size distribution of sol-solution, and analyzed the reason of catalyst dosage effects particle size of gel, and confirmed that the up-growth of gel follows the theory of " polymerize increase ".The experiment results indicated that ultrasonic with unvarying temperature disposal shortened gel time and optimized quality of gels, and the factors of ultrasonic effect gel reaction velocity were analyzed; Prepared organic aerogels using compounds of resorcin and hydroquinone substitute resorcinol reacts with formaldehyde the first time, and also optimized the proportion of resorcinol and hydroquinone (the proportion of hydroquinone in 10%~40%).
采用溶胶-凝胶工艺结合动态溶剂交换、CO2超临界流体干燥与程序升温碳化方法制备出性能优良、具有纳米网络结构的RF与CRF气凝胶;深入研究了反应物配比催化剂用量等条件对凝胶过程的影响,得到了较佳的RF凝胶制备条件(RF浓度应大于2%,R/C值取50~300);初步研究了凝胶过程中的粘度、粒径变化情况,分析了催化剂用量影响凝胶中粒子尺度的原因,在实验上印证了凝胶生长遵循"聚增长"的理论;通过引入超声波改进了RF气凝胶的制备工艺,缩短了凝胶反应时间,提高了凝胶品质,并探讨了超声波促进RF凝胶反应作用的原因;首次用对苯二酚与间苯二酚复配制备了混合有机气凝胶,优化出复配比(对苯二酚含量为10%~40%)。2。
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Web-based learning evaluation based on Developmental Assessment Theory will absorb excellent evaluation theory, in virtual of advanced computer and network technology, integrate procedural evaluation and multi-evaluation, emphasize more evaluation subject, multiplicities of evaluation criterion and mode, evaluate the learner's ability, promote comprehensive development.
所以,构建基于发展性评价的网络学习评价系统以及相关的平台是支撑网络学习评价的基础,是构建网络学习系统迫切需要的。本文先对基于发展性评价的网络学习评价进行理论分析,然后对网络学习的发展性评价系统进行研究与设计,把此系统划分为电子测验模块、在线讨论模块、我的学档模块、园丁天地模块。