نتایج جستجو برای: soret band

تعداد نتایج: 135197  

Journal: :Photonics 2022

The fluorescence anisotropy of photosensitizers Radachlorin and chlorin e6 was studied using the time-resolved single photon-counting technique under one- two-photon excitation within Soret absorption band. A very small negative observed in both one-photon vicinity maximum wavelength range 395–405 nm. Meanwhile, same spectral demonstrated high with value about 0.43. drastic difference parameter...

2007
JUN HU HAMDA BEN HADID DANIEL HENRY ABDELKADER MOJTABI

Temporal and spatio-temporal instabilities of binary liquid films flowing down an inclined uniformly heated plate with Soret effect are investigated by using the Chebyshev collocation method to solve the full system of linear stability equations. Seven dimensionless parameters, i.e. the Kapitza, Galileo, Prandtl, Lewis, Soret, Marangoni, and Biot numbers (Ka, G, Pr, L, χ , M , B), as well as th...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2021

Chlorophyll has unique physicochemical properties which makes them good as photosensitizer of Photodynamic Inactivation (PDI). The chlorophyll can be optimized through several routes. One the possible route is by replacing metal ion center with other ions. In this research, effect coordinated in natural chlorophyll-a was studied for bacterial growth (S. aureus) inhibition. replacement hopefully...

Journal: :Journal of Porous Media 2021

A theoretical model is proposed to predict Darcy-scale mass transport in porous media coupled with nonequilibrium heat transfer and taking into account the thermal diffusion process. volume-averaging technique was used approximations leading a two-equation or two-temperature for macroscale energy balance equations. Because of Soret effect, concentration deviation respect averaged value function...

2011
Fakhreddine Segni Oueslati Rachid Bennacer

Convective heat transfer using different nanofluid types is investigated. The domain is differentially heated and nanofluids are treated as heterogeneous mixtures with weak solutal diffusivity and possible Soret separation. Owing to the pronounced Soret effect of these materials in combination with a considerable solutal expansion, the resulting solutal buoyancy forces could be significant and ...

ژورنال: شیمی کاربردی 2019

In the present study, the interaction between water-soluble cationic asymmetric porphyrin, 5-(1-Hexadecyl pyridinium-4-yl)-10, 15, 20-tris (1-Butyl pyridinium-4-yl) Porphyrin Chloride, and its copper (II) derivative with calf thymus DNA (CT-DNA) were studied by means of spectroscopic techniques, viscosity measurements and molecular docking. The monitoring of the changes in visible absorbance sp...

2008
Dirk Reith Florian Müller-Plathe

The aim of this study is to understand deeper the thermal diffusion transport process (Ludwig-Soret effect) at the microscopic level. For that purpose, the recently developed reverse nonequilibrium molecular dynamics method was used to calculate Soret coefficients of various systems in a systematic fashion. We studied binary Lennard-Jones (LJ) fluids near the triple point (of one of the compone...

Journal: :The Journal of chemical physics 2008
Pavel Polyakov Simone Wiegand

We performed systematic temperature and concentration dependent measurements of the Soret coefficient in different associated binary mixtures of water, deuterated water, dimethyl sulfoxide (DMSO), methanol, ethanol, acetone, methanol, 1-propanol, 2-propanol, and propionaldehyde using the so-called thermal diffusion forced Rayleigh scattering method. For some of the associating binary mixtures s...

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