1) KOH Al 2O 3
KOHAl2O3
2) α-butylcinnamaldehyde
KOH/Al2O3
1.
This paper studis the synthesis of α-butylcinnamaldehyde from mixed aldol condensation of n-hexaldehyde and benzaldehyde,with Al_2O_3-supported KOH as the catalyst of the condensation.
本文以KOH/Al2O3为催化剂,研究了正己醛和苯甲醛交叉缩合α-丁基肉桂醛的反应,重点考察了反应温度、反应时间、反应原料摩尔配比(己醛/苯甲醛)、溶剂用量、催化剂用量、催化剂负载量诸因素对目标产物α-丁基肉桂醛产率的影响,确定了制备α-丁基肉桂醛的优化反应条件:温度70℃、时间1。
3) KOH-KF/Al_2O_3
KOH-KF/Al2O3
4) Al_2O_3
Al2O3
1.
The Fe-matrix composites reinforced with Al_2O_3were fabricated by melting-casting.
采用熔铸法成功的制备成了Al2O3/Fe复合材料,利用扫描电子显微镜(SEM),来观察增强相Al2O3的微观组织。
2.
The phase transformation of γ-Al_2O_3 at high temperature was characterized by Raman techniques.
通过不同波长的Raman激发光对γ-Al2O3的高温相变过程进行了研究。
3.
Steric hindrance layer can be established when the surfaces of nano-Al_2O_3 were grafted with polyacetal,which(increased) the dispersibility of the nano-particles as well as the compatibility between the particles and the resin matrix.
在纳米Al2O3表面接枝聚缩醛可在粒子表面建立起空间位阻稳定层,不但提高了纳米粒子的分散稳定性,还可以增强纳米粒子与树脂基体的相容性。
5) aluminum oxide
Al2O3
1.
A method was developed for synthesis of DBP catalyzed with non-proton acid and the result showed that aluminum oxide can be used to synthesize dibutyl phthalate characterized with high reaction activity,good selectivity and high rate of conversion,but less environmental pollution.
实验结果表明,Al2O3催化酯化合成邻苯二甲酸二丁酯具有反应时间短、反应活性和选择性好、产率高、无环境污染等优点、是理想的合成DBP的催化剂。
2.
On the basis of wear resistance research on polyurethane matrix composites reinforced with aluminum oxide particles, component of slurry pump coated by the composites with optimum proportion was manufactured.
在Al2O3颗粒增强聚氨酯基复合材料耐磨性的研究基础上,采用具有最佳耐磨性的复合材料配方,进行了砂浆泵护板涂覆及产品实用性研究。
3.
In this paper, the preparation of TiO_2 photocatalyst coated on the aluminum oxide surface by sol-gel technique using tetrabutyl titanate as material was studied.
以钛酸四丁酯为原料,Al2O3为载体,用溶胶-凝胶法制备负载型TiO2,在UV-TiO2体系中对吡啶(PD)进行光催化降解,并研究了将TiO2负载在不同铝源所制备的Al2O3后光催化剂的差异,结果表明:负载型TiO2光催化剂加入量为10mg/40mL,吡啶的光催化降解反应符合一级动力学方程;吡啶中氮转化成氨氮。
6) Alumina
[英][ə'lu:mɪnə] [美][ə'lumɪnə]
Al2O3
1.
The mechanism of the reactions between alumina and modifier strontium in A356 alloy melt have been investigated, by means of XRD and SEM.
通过XRD、SEM等分析手段研究了A356合金熔体中Al2O3夹杂与变质剂Sr之间所发生的反应及其反应机制,结果发现Sr可以与Al2O3经过一系列反应生成Sr-Al-O化合物,由此造成了Sr的损耗,生成的Sr-Al-O化合物可溶于水。
2.
To overcome the high-temperature defects of Ag used as the substrate of superconducting tape and improve the mechanical properties and melting point of Ag,the alumina whose melting point is high was selected as a doping to prepare Al2O3/Ag composite through conventional powder metallurgy.
为了克服Ag作为超导基底时的高温使用缺陷,提高Ag的熔点及其力学性能,选择了高熔点的Al2O3作为掺杂物,通过传统粉末冶金方法制备了Al2O3/Ag基复合材料。
3.
In the present work,the thermal conductivity of alumina was improved by adding aluminum nitride with high thermal conductivity.
本文选用导热系数较高的AlN来改善Al2O3陶瓷的导热性能;并借助SEM和XRD对材料的微观结构和物相进行了分析。
补充资料：低肌张力低智能性发育低下肥胖综合征
低肌张力低智能性发育低下肥胖综合征
病名。简称HHHD综合征。亦称PraderWilli综合征。主要因下丘脑功能紊乱而致。无明显家族因素。男性多见。包括出生时肌张力及反射低下，嗜睡，哺乳喂养困难及6个月后肌张力亢进，过食，肥胖，智能低下，小阴茎，双侧或单侧隐睾，青春期副性征不发育，高血糖症，糖尿病等。宜对症治疗。
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参考词条