نتایج جستجو برای: chiral

تعداد نتایج: 37423  

N. Farhadian

The aim of this study is investigating the transport mechanism of ibuprofen chiral isomers inside single wall carbon nano tube (SWCNT) using mathematical modeling. To achieve this goal, molecular dynamics simulation has been performed to evaluate the interactions of ibuprofen isomers with SWCNT in an aqueous solution. Results show that both chiral forms of ibuprofen molecules enter and remain i...

Carbon nanotubes (CNTs) are specific structures with valuable characteristics. In general, the structure of each nanotube is defined by a unique chiral vector. In this paper, different structures of short single-walled CNTs are simulated and their mechanical properties are determined using finite element method. For this aim, a simple algorithm is presented which is able to model the geometry o...

حق پیما , علیرضا , سربیشه‌ای, محسن ,

  Diquarks may play an important role in hadronic physics particularly near the phase transitions (chiral, deconfinement points). By using vector diquark ideas in the chiral limit diquark correlations in the relativistic region and imposing HF interactions between quarks in a vector diquark, we calculate the mass of Theta pentaquark state. Also by using the tunnelling method we simultaneously c...

Journal: :iranian journal of pharmaceutical research 0
dongmei wang box 39 school of pharmacy shenyang pharmaceutical university 103 wenhua road shenyang 110016, people’s republic of china. fang li box 39 school of pharmacy shenyang pharmaceutical university 103 wenhua road shenyang 110016, people’s republic of china. zhen jiang box 39 school of pharmacy shenyang pharmaceutical university 103 wenhua road shenyang 110016, people’s republic of china. xingjie guo xingjie guo box 39 school of pharmacy shenyang pharmaceutical university 103 wenhua road shenyang 110016, people’s republic of china. xingjie guo xingjie guo box 39 school of pharmacy shenyang pharmaceutical university 103 wenhua road shenyang 110016, people’s republic of china.

the high performance liquid chromatography (hplc) enantioseparation of four β-blocking agents metoprolol, bisoprolol, propranolol and atenolol was performed on amylose tris-(3,5-dimethylphenylcarbamate) chiral stationary phase using n-hexane-ethanol-diethylamine (dea) as the mobile phase and related chiral recognition mechanisms were discussed. enantiomeric separation of the fourβ-blockers was ...

The melting of zigzag, armchair and chiral single walled boron nitride nanotubes (SWBNs) investigated using molecular dynamics (MD) simulation based on Tersoff-like many body potential. The MD simulation has been employed in the constant pressure, constant temperature (NPT) ensemble. The temperature and pressure of the system were controlled by Nose-Hoover thermostat and Berendsen barostat, res...

Journal: :physical chemistry research 0
hossein fakhraian imam hossein university morteza salimi faculty of chemical, gas and petroleum engineering, semnan university, semnan, iran bahman zarenezhad faculty of chemical, gas and petroleum engineering, semnan university, semnan, iran ebrahim choobdari department of chemistry, shahid beheshti university, evin, tehran, iran

experimental determination of solubility and ternary phase diagram of chiral compound are of tedious and time consuming tasks, and in many cases, there is not enough experimental data for different enantiomeric compositions to access the experimental ternary phase diagram. using thermodynamic models with predictive capability, having less dependency on experimental data, affords a great advanta...

1993
Vitaly TARASOV

The algebra of monodromy matrices for sl(n) trigonometric R-matrix is studied. It is shown that a generic finite-dimensional polynomial irreducible representation of this algebra is equivalent to a tensor product of L-operators. Cocommutativity of representations is discussed and inter-twiners for factorizable representations are written through the Boltzmann weights of the sl(n) chiral Potts m...

Journal: :Optics letters 2014
T V Mykytiuk I P Ilchishin O V Yaroshchuk R M Kravchuk Y Li Q Li

Lasing in induced cholesteric liquid crystal (CLC) containing highly photosensitive azo chiral dopant (ChD) and pyrromethene laser dye was investigated. Due to the absence of excitation energy transfer from the dye molecules to the molecules of ChD in such a system, a low lasing threshold was achieved. When using violet and green light-emitting diodes, reversible frequency tuning was obtained i...

2007
Qi - Shu Yan

We update the uncertainty analysis on S parameter of the electroweak chiral Lagrangian (EWCL) by including the LEP-II W pair production data. We find that experimental data still allow a positive S EXP (1TeV).

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