cholesteric phase meaning in Chinese
胆细相
胆甾醇相
胆甾相
Examples
- The form of the interaction potential between molecules is assumed to be the same with which is used in the theory of cholesteric phase
分子间相互作用势与胆甾相微观理论中所采用的作用势相同。 - There are some disputes about the potential vx . it had not been proved by far that the form of the chiral potential vx that is generally accepted can induce the cholesteric phase
关于v _ x的形式存在争议，并未从理论上证明目前采用的形式一定会导致胆甾相的螺旋性结构。 - The microscopic mechanism of the helix structure is one of the most important questions for cholesteric phase , from the general view , which is because there are chiral potential vx
胆甾相理论的一个核心问题是导致其螺旋性结构的微观机制。一般认为这是由于分子之间存在手性作用势v _ x 。 - In this paper , we introduce quantum theory into the liquid crystals in order to research the collective effect ( i . e . the physics effect produced by many - body effect and collective excitation ) . in this way , we research the microscopic theory of nematic phase and cholesteric phase
为了探索其集体效应(多体效应以及集体激发导致的物理效应) ，本文将量子理论引入到液晶体系，研究向列相和胆甾相的微观理论。 - Abstract : methanesulfonic acid method was used to prepare five acylated chitins . except heptanoyl chitin , four of them , i . e . acetyl chitin , propionyl chitin , butyryl chitin and hexanoyl chitin , had high degree of substitution ( from 1 . 5 to 2 . 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase . as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0 . 21 to 0 . 26 because the chain rigidity dropped . the critical concentration values of all the four derivatives were much higher than that of chitin ( 0 . 12 ) due to the decrease of intramolecular hydrogen bonds . the four acylated chitin can form typical banded texture after being sheared . there minimum concentrations to form banded texture of them were evidently different , varied from 0 . 25 ( for acetyl chitin ) to 0 . 37 ( for hexanoyl chitin ) . these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased
文摘:四种羧酰化甲壳素即乙酰化、丙酰化、丁酰化和己酰化甲壳素在二氯乙酸溶液中均呈现胆甾型溶致液晶相.临界浓度随侧基长度增加而略有增加，衍生物的临界浓度明显都比原甲壳素高许多，这些规律都可以用链刚性的变化来解释.四种羧酰化甲壳素在剪切时均能形成条带织构，而且能形成条带织构的最低浓度有明显差别，随侧基长度增加而提高，进一步表明侧基较长，液晶性减少