倍力抗磨节能剂在压风机上的应用

1 倍力技术的基本原理和功效 (1)倍力抗磨节能剂是一项高科技润滑技术,是润滑油、压力油和油脂的强化剂。倍力技术是把油作为倍力分子的载体及冷却剂,而倍力分子在边界摩擦时利用瞬时的局部高温及新磨损的金属微屑产生成极性的及熔点极高的共晶复合物,作为微型极性的吸附性滚珠充填在金属凹凸不平的表面上,能抗酸、抗碱、除锈且微观接触面增大,因此能承受高温、高压,被广泛应用到生产、生活的诸多领域。

二氢乳清酸脱氢酶抑制剂的设计、合成和构效关系研究

本文将实验室前期发现的1-丁酰基-3-(4-氯苯基)-5-甲硫基-1H-1,2,4-三氮唑作为人类二氢乳清酸脱氢酶(Hs DHODH)抑制剂设计的苗头化合物,为开展结构优化,首先培养并解析了苗头化合物与Hs DHODH的复合物晶体结构;在此基础上,设计合成了一系列基于苗头结构新颖的Hs DHODH抑制剂。活性结果表明,新合成的目标化合物对Hs DHODH具有较好的抑制活性,其中1-呋喃甲酰基-3-(4-三氟甲基苯基)-5-乙硫基-1H-1,2,4-三氮唑的IC50值达到1.50μmol·L^(-1)。结合生物学活性测试及复合物晶体结构对该系列化合物的构效关系进行了分析与总结,为1H-1,2,4-三氮唑衍生物Hs DHODH抑制剂的进一步优化提供了借鉴经验。

Selective Gold Deposition on a Nanostructured Block Copolymer Film Crystallized by Epitaxy

An ordered nanostructure formed by epitaxial crystallization of a semicrystalline block copolymer on a substrate has been used as a patterned template for the selective deposition of thermally evaporated gold nanoparticles, resulting in the formation of structure-guiding host nanocomposites in which the ordered distribution of the guest particles is guided by the ordering of the host nanostructured block copolymer matrix. This opens new perspectives in the field of polymeric composites related to the maximum enhancement of effective physical properties and to the numerous possible applications that arise due to the presence of long-range order in the spatial distribution of functional nanoparticles.