BETAINE SURFACTANTS AND PREPARATION METHODS AND USES THEREOF
申请人:Liu Chunde
公开号:US20140113842A1
公开(公告)日:2014-04-24
Betaine surfactants of formula (I) and preparation methods and uses thereof are provided. The surfactant can decrease the interfacial surface tension of crude oil till 10
−3
mN/m, have the capabilities of antiheating (130° C.), antimineralizing and antidiluting, and can be used in the field of tertiary oil recovery.
The State of Russian Science: Focus Groups with Nuclear Physicists
作者:Theodore P. Gerber、Deborah Yarsike Ball
DOI:10.2747/1060-586x.18.3.183
日期:2002.1
Two specialists on Russian society and politics examine the condition of Russian science and scientists based on secondary literature, official statistics, and focus groups conducted with 19 Russian nuclear physicists in October 2001. The article discusses the implications of their findings for international security and for Russia's economic and political trajectories.
Polymethylbenzenes. XXV. The Reaction between Dimethylacrylic Acid and the Trimethylbenzenes<sup>1</sup>