1) β integral
β积分
2) β-rough integral
β-粗积分
1.
Based on the concept of the F-rough integral proposed by Yu[1],the concept of the β-rough integral was given by employing the transfer credibility degree β,the relation between the F-rough integral and the β-rough integral was discussed.
基于文献[1]提出的F-粗积分概念,引入迁移信度β,提出在迁移信度β条件下的β-粗积分,讨论F-粗积分与β-粗积分的关系,证明β-粗积分是F-粗积分的推广,F-粗积分是β-粗积分的特例。
3) Newmark-βnumerical integral method
Newmark-β数值积分法
4) β molecular sieve
β分子筛
1.
The La/β molecular sieve catalyst was prepared by the ion-exchange method using microwave heating and conventional heating.
采用离子交换法,分别在微波加热和常规加热的条件下,制备了La/β分子筛催化剂,并采用红外光谱、扫描电子显微镜、X射线衍射与能量色散谱进行了表征。
2.
A new method of removing water from the ethanol and water mixture near azeotropic concentration was proposed based on isobutylene(IB) hydration-etherification catalyzed by β molecular sieve.
实验以β分子筛为催化剂,在2。
3.
Effects of ammonium salts modification on acidity of β molecular sieve and on its catalytic performances for diisopropylbenzene isomerization were studied.
考察了三元有机酸铵盐(柠檬酸三铵和柠檬酸氢二铵)和传统的硝酸铵对β分子筛改性的影响,采用X射线粉末衍射、氨吸附-程序升温脱附和吡啶吸附红外光谱技术对催化剂进行表征,并将改性后的催化剂用于二异丙苯的异构化反应。
5) β zeolite
β分子筛
1.
Diffusivity of benzene in β zeolite: Kinetic Monte Carlo simulations;
β分子筛中苯分子扩散行为的KMC模拟
2.
Study on synthesis anthraquinone from phthalic anhydride and benzene over modified β zeolite catalyst
改性β分子筛催化苯与苯酐合成蒽醌的研究
3.
Influence of alkaline on preparation of new composites from montmorillonite and NaY zeolites or β zeolites was investigated.
在蒙脱土与β分子筛进行复合时,体系的碱浓度较小(约0。
6) β distribution
β分布
1.
Reputation system for wireless sensor networks based on β distribution;
基于β分布的无线传感器网络信誉系统
2.
Application of β distribution in fuzzy reliability analysis of geotechnical engineering;
β分布在岩土工程模糊可靠性分析中的应用
3.
Two kinds of estimation methods for the β distribution parameters according to small sized samples are presented.
并提出按小样本估计β分布参数的"界似"与"形似"两种方法,先分别应用Bootstrap方法即自助法估计其均值和标准差、偏度和峰度,再按其间的关系求得其参数估计(g^,h^)。
补充资料:1-[β,β,β-三(对氯苯基)丙酰]-4-甲基哌嗪
分子式:C26H25CL3N2O
分子量:487.85
CAS号:2390-22-9
性质:该品溶点213-215℃。作兽用驱虫药时常用基盐,又称Dieroden。盐酸盐的熔点为267-269℃,易溶于热水和醇。
制备方法:以三(对氯苯基)甲醇(Ⅰ)为原料,与氰乙酸加成得β,β,β-三(对氯苯基)丙腈(Ⅱ),经浓硫酸水解得β,β,β-三(对氯苯基)丙酸(Ⅲ),再用五氯化磷酰氯化,得到β,β,β-三(对氯苯基)丙酰氯(Ⅳ),最后与N-甲基哌嗪缩合制得海涛林。
用途:该品为治疗牛、羊矛形腔吸虫病的高效药物,具有作用强、驱虫率高(96%以上)、毒性低、适口性好等优点,国外畜牧业应用十分广泛。
分子量:487.85
CAS号:2390-22-9
性质:该品溶点213-215℃。作兽用驱虫药时常用基盐,又称Dieroden。盐酸盐的熔点为267-269℃,易溶于热水和醇。
制备方法:以三(对氯苯基)甲醇(Ⅰ)为原料,与氰乙酸加成得β,β,β-三(对氯苯基)丙腈(Ⅱ),经浓硫酸水解得β,β,β-三(对氯苯基)丙酸(Ⅲ),再用五氯化磷酰氯化,得到β,β,β-三(对氯苯基)丙酰氯(Ⅳ),最后与N-甲基哌嗪缩合制得海涛林。
用途:该品为治疗牛、羊矛形腔吸虫病的高效药物,具有作用强、驱虫率高(96%以上)、毒性低、适口性好等优点,国外畜牧业应用十分广泛。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条