نتایج جستجو برای: numerical quenching time

تعداد نتایج: 2159991  

Journal: :Physical review 2021

We develop a numerical method to nonperturbatively study scattering and gluon emission of quark from colored target using light-front Hamiltonian approach. The is described as classical color field, in the Color Glass Condensate effective theory. Fock space system restricted $\ket{q}+\ket{qg}$ sectors, but time evolution this truncated solved exactly. This allows us interplay between coherence ...

Journal: :Plasma Sources Science and Technology 2022

Abstract Fast gas heating in a pulsed nanosecond capillary discharge pure CO 2 under the conditions of high specific deposited energy (around 1.2 eV/molecule) and reduced electric fields (150–250 Td) has been studied experimentally numerically. Specific energy, field temperature have measured as functions time. The radial distribution electron density analyzed experimentally. role quenching O( ...

Journal: :Journal of Laser Applications 2023

Laser quenching has a short process cycle and high production efficiency, it plays an important role in automobile, ship, machinery manufacturing, other fields. The surface hardness of 40Cr steel laser parts is uneven by unreasonable set on the overlap zone. This will affect microstructure quenched layer, resulting cracking, corrosion during service, hazards that ultimately reduce reliability. ...

In this study, the crystallization behavior of a 65GeO2-15PbO-10MgF2-10MgO glass (prepared by the conventional melt quenching technique) has been investigated. The microstructure and crystallization behaviors of this glass were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), non-isothermal differential thermal analysis (DTA) and Fourier transform infrared spectr...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
علی اسدی جواد خادم

laminar counterflow diffusion flames provide useful information about basic properties of non-premixed combustion. a lot of studies have been performed on h2/o2 counterflow. most of previous studies include undiluted or diluted systems of hydrogen (with co2 or n2) against an air flow under a variety of conditions such as strain rates, inlet temperature and pressure. the main purpose of this res...

2012
SANTANU BHATTACHARYYA AMITAVA PATRA

In this report, we have demonstrated the photoluminescence quenching and energy transfer properties of semiconducting polymer nanoparticles, poly (N-vinylcarbazole) (PVK) in presence of different sized Au nanoparticles by steady state and time-resolved spectroscopy. We have described the quenching phenomena by sphere of action static quenching mechanism and both dynamic and static quenching pro...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2013
Mathias Bjerre Jens M Tarp Luiza Angheluta Joachim Mathiesen

We consider grain growth and stagnation in polycrystalline microstructures. From the phase-field crystal modeling of the coarsening dynamics, we identify a transition from a grain-growth stagnation upon deep quenching below the melting temperature T(m) to a continuous coarsening at shallower quenching near T(m). The grain evolution is mediated by local grain rotations. In the deep quenching reg...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2005
Sören Doose Hannes Neuweiler Markus Sauer

Understanding fluorescence quenching processes of organic dyes by biomolecular compounds is of fundamental importance for in-vitro and in-vivo fluorescence studies. It has been reported that the excited singlet state of some oxazine and rhodamine derivatives is efficiently and almost exclusively quenched by the amino acid tryptophan (Trp) and the DNA base guanine via photoinduced electron trans...

Journal: :Proteins 1986
D B Calhoun J M Vanderkooi G R Holtom S W Englander

Experiments were done to test the thesis that acrylamide and similar small molecules can penetrate into proteins on a nanosecond time scale. The approach taken was to measure the pattern of fluorescence quenching exhibited by quenching molecules differing in molecular character (size, polarity, charge) when these are directed against protein tryptophans that cover the whole range of tryptophan ...

Journal: :Analytical chemistry 2007
Sinéad M Matthews Alan D Elder Kamran Yunus Clemens F Kaminski Colin M Brennan Adrian C Fisher

A novel microfluidic approach for the quantification of reaction kinetics is presented. A three-dimensional finite difference numerical simulation was developed in order to extract quantitative kinetic information from fluorescence lifetime imaging experimental data. This approach was first utilized for the study of a fluorescence quenching reaction within a microchannel; the lifetime of a fluo...

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