查询词典 sol-fa

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。

A wet chemical method was cidopted to introduce alumina sol to surface-modification of alumina bubble and in-situ decomposition characteristics, distribution of alumina sol, mi-crostructure and mechanical properties of surface-modified alumina bubble were studied by SEM, XRD, Coulter LS Particle Size Analyzer and self-preparation experimental device for measurement of compressive resistance.

采用湿化学的方式引入铝胶对氧化铝空心球进行表面修饰改性；采用SEM、XRD、激光粒度仪和自制耐压装置研究铝胶分解特性、分布状态、氧化铝空心球表面改性前后显微结构及力学强度变化。

Results show that some primary factors affect sol-gel transition, gelation formation and quality. These factors include the temperature of solation formation and sol-gel transition, drying time.

对溶胶-凝胶法的研究发现：溶胶形成温度、凝胶干化温度及干化时间等都是影响干凝胶质量的主要因素。

Peroxo titanic acid sol; needle-like anatase crystal sol; nano TiO2 thin films; hydrothermal reaction; photocatalysis

过氧钛酸溶胶，针状锐钛矿晶粒溶胶，纳米TiO2薄膜，水热反应，光催化

ZrO2 films can be obtained through many methods such as physical vaporous deposition, chemical vaporous deposition, electrochemistry and Sol-Gel method. Sol-gel method has become one of the most popular and important techniques.

不锈钢具有良好的耐蚀性，本论文选择不锈钢为基体制备氧化锆薄膜，将金属材料较好的力学性能和陶瓷薄膜较好的化学稳定性有机结合在一起。

The whispering gallery modes from Rhodamine B doped sol gel microdisks under 532 nm pulsed laser pumping was studied. Microdisks of 15 μm～20 μm in diameter were fabricated by photolithography of light polymeriable sol gel thin films.

采用光聚合溶胶凝胶材料，通过光刻制备得到直径在15 μm～20 μm间的光学微盘谐振腔，在掺有若丹明B染料时，用脉冲532 nm激光抽运微盘，观察到回廊耳语模式，实验所得峰位与理论值相符。

From the results of IR and XPS spectrocopy. The cationic sol components H〓SiO〓 and 〓 of the solution trend to adsorp on the surface of electronegative aegirine because of electrostatic acctraction each other, and interrupted the collector's reaction with Fe〓 on the surface. Hence the flotation of aegirine was decreased, on the other hand, there is electrostatic repulsion between the surface of hematite and the cationic sol H〓SiO〓.〓, Which has advantage to dispersion of hematite particles, therefore, the hematite flotation is achieved sucessfully with anionic collector.

根据红外光谱和XPS测试结果可知，在弱酸性介质中，活性硅酸胶体抑制剂中荷正电的胶团H〓SiO〓及〓由于电性吸引而选择性地覆盖在荷负电的钠辉石表面，从而阻碍了阴离子捕收剂与表面Fe〓的配位作用，导致钠辉石的浮游被抑制；而赤铁矿表面由于荷正电，与矿浆中的H〓SiO〓、〓等硅酸胶团存在着电性排斥作用，有利于赤铁矿颗粒的稳定分散，所以赤铁矿能够被脂肪酸捕收剂吸附而选择性上浮。

The sol's sensitivity towater can be improved by using inorganic salts instead of alkoxide as bismuthand strontium precursors, and hence the sol-gel processing can be simplified.

用无机盐代替醇盐作为锶和铋的前驱体，可克服溶胶对空气中水分的敏感性，从而大大简化了SBT薄膜的制备工艺。

The paper discusses applications and developments of sol-gel method in the fields of electricity, photics, calorifics and composites, and present problems and development trends of sol-gel chemisty are analyzed in material preparation.

介绍了溶胶凝胶理论和技术的历史背景以及研究现状，评述了近年来在电学、光学、热学以及生物-材料等领域中的应用和发展前景，指出了溶胶凝胶化学在材料制备存在的问题和发展趋势。

Silicone/SiO2 organic-inorganic hybrid sol have been prepared from tetraethyl orthosilicate as inorganic precursor, methyl triethoxysilane and diphenyl dimethoxy silane as organic precursor, the hydrochloric acid and water as catalysts, by sol-gel method through the hydrolysis-polycondensation reaction.

采用溶胶－凝胶法，以正硅酸乙酯为无机相前驱体，甲基三乙氧基硅烷和二甲基二甲氧基硅烷为有机相前驱体，盐酸和水为催化剂，通过水解－缩聚反应制备了有机硅／SiO2有机－无机杂化溶胶。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。