VNU Journal of Science: Mathematics - Physics

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The Calculation of the Ettingshausen Coefficient in Quantum Wells under the Influence of Confined Phonons (for Electron – confined Optical Phonon Scattering)
VNU Journal of Science: Mathematics - Physics - Tập 35 Số 2 - 2019
Nguyen Thi Lam Quynh
Abstract: In this paper, we have used the method of quantum kinetic equation to calculate the analytic expression for Ettingshausen coefficient (EC) under the influence of confined phonon. We considered a quantum well in the presence of constant electric field, magnetic field and electromagnetic wave (EMW) with assumption that electron – confined optical phonon (OP) scattering is essential. The EC... hiện toàn bộ
The electric, magnetic and magnetocaloric properties of perovskite
VNU Journal of Science: Mathematics - Physics - Tập 20 Số 3AP - 2017
Tho Duc Nguyen
Abstracts
Verification of hazard, race and deadlock in GAlS-circuit
VNU Journal of Science: Mathematics - Physics - Tập 26 Số 1 - 2010
Abstract 
Nambu-goldstone Modes in Two Segregated Bose-einstein Condensates Limited by Two Hard Walls
VNU Journal of Science: Mathematics - Physics - Tập 39 Số 3 - 2023
Hoang Van Quyet
 The Nambu-Goldstone (NG) modes in the system of two segregated Bose-Einstein condensates (BECs) limited by two hard walls are studied by means of the Gross-Pitaevskii (GP) theory. Based on the double-parabola approximation (DPA) combining with the Bogoliubov-de Gennes (BdG) equations we found four NG modes that proves the failure of the Watanabe-Brauner counting rule and, furthermore, their dispe... hiện toàn bộ
Characterized rings by pseudo - injective modules
VNU Journal of Science: Mathematics - Physics - Tập 24 Số 2 - 2008
Abstract
Parametric interactions of acoustic and optical phonons in cylindrical quantum wires
VNU Journal of Science: Mathematics - Physics - Tập 20 Số 3AP - 2017
Diep Van Nguyen
Abstracts
On the matheron theorem for topological spaces
VNU Journal of Science: Mathematics - Physics - Tập 23 Số 4 - 2007
Abstract:
Predict optical properties of Dy3+ ions doped double potassium gadolinium fluoride crystal from absorption spectra
VNU Journal of Science: Mathematics - Physics - Tập 28 Số 2 - 2012
Abstract. Double potassium gadolinium fluoride crystal doped with 5.0 mol % of Dy3+ ions (K2GdF5:Dy3+) was synthesized under hydrothermal condition. The absorption, luminescence spectra and lifetime of K2GdF5:Dy3+ sample were measured at room temperature. Judd – Ofelt (JO) theory is used to study the spectral properties and to calculate the radiative transition probabilities. The prediced branchin... hiện toàn bộ
Neutron Cross Section Generation for PWR MOX Fuel Assemblies with SCALE and Serpent
VNU Journal of Science: Mathematics - Physics - Tập 37 Số 2 - 2021
Tran Viet Phu, Luu Thi Lan, Pham Nhu Viet Ha, Vu Thanh Mai, Donny Hartanto, Tran The Anh
In this study, the SCALE/TRITON code (based on deterministic method) and the Serpent 2 code (based on Monte Carlo method) were utilized to prepare the group constants of the pressurized water reactor (PWR) mixed-oxide (MOX) fuel assemblies for transient analyses of PWR MOX fueled cores in normal operation and control rod ejection accident condition with 3D reactor kinetics codes. The PWR MOX fuel ... hiện toàn bộ
Metal – Organic Frameworks: State-of-the-art Material for Gas Capture and Storage
VNU Journal of Science: Mathematics - Physics - Tập 32 Số 1 - 2016
Abstract: The capture and storage of gases for the applications of energy, environment, and biomedicine are closely related to the major concerns of the modern world about energy crisis, air pollution and global warming, and human’s health. Many materials and techniques have been developed to tackle these widespread issues, in which metal-organic frameworks (MOFs) – a new class of porous materials... hiện toàn bộ
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