• Nonlinear vibration of porous funcationally graded cylindrical panel using Reddy’s high order shear deformationNonlinear vibration of porous funcationally graded cylindrical panel using Reddy’s high order shear deformation

    Abstract: The nonlinear dynamic response and vibration of porous functionally graded cylindrical panel (PFGCP) subjected to the thermal load, mechanical load and resting on elastic foundations are determined by an analytical approach as the Reddy’s third order shear deformation theory, Ahry’s function The study results for dynamic response of PF...

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  • Quantum statistics in cylindrical time-evolution of electrons and physical realityQuantum statistics in cylindrical time-evolution of electrons and physical reality

    Abstract: Due to helical cylindrical time-evolution of electrons the mankind observation at a quantum mechanical scale depends on synchronization between observers and their surrounding cosmological medium by collective dynamics. From one side, the synchronization leads to linearization of an embedded 4D space-time reminiscent of the flat Minkow...

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  • Prediction of the higgs and top quark masses by discrete dimensions revisitedPrediction of the higgs and top quark masses by discrete dimensions revisited

    1. Introduction  In physics, predictions usually are based on the differential equations. The profound essence of those is the derivative, which relates the value of a quantity at a given point to the one in its infinitesimal neighborhood. One of most important theoretical construction tool for unified theories is the multi-dimensional space-t...

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  • Structural and dynamics heterogeneity in sodium silicate liquidStructural and dynamics heterogeneity in sodium silicate liquid

    Abstract: Liquid Na2O-4SiO2 has been constructed by molecular dynamics simulation at 1873 K, ambient pressure with periodic boundary conditions. To clarify the local environment of atoms, we apply the oxygen simplex (OS) which is characterized by the size, forming oxygen atom types and the number of sodium atoms located inside the OS. The simula...

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  • The microstructural transformation and dynamical properties in Sodium-Silicate: Molecular dynamics simulationThe microstructural transformation and dynamical properties in Sodium-Silicate: Molecular dynamics simulation

    Abstract: Molecular dynamics simulation of sodium-silicate has been carried out to investigate the microstructural transformation and diffusion mechanism. The microstructure of sodium silicate is studied by the pair radial distribution function, distribution of SiOx (x=4,5,6), OSiy (y=2,3) basic unit, bond angle distribution. The simulation resu...

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  • Effect of annealing temperature on Cu2O thin films prepared by thermal oxidation methodEffect of annealing temperature on Cu2O thin films prepared by thermal oxidation method

    Abstract: We report a facile process to fabricate cuprous thin films by thermal oxidation of copper substrates. Structure and phase identification were studied by X-ray diffraction measurement and Raman spectroscopy. Scanning electron microscopy was utilized to study surface morphology of the as-fabricated thin films and optical properties of th...

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  • Investigation on structure of TeO2-B2O3-SiO2-Al2O3-KF glassesInvestigation on structure of TeO2-B2O3-SiO2-Al2O3-KF glasses

    1. Introduction In recent decades, there has been an increasing attraction in synthesis and studies of structural and physical properties of heavy metal oxide glasses due to their diversity applications in optical field [1- 3]. Among these glasses, tellurite glasses are technologically and scientifically important due to their outstanding prope...

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  • Study of structure transition and crystallization of amorphous silica under compressionStudy of structure transition and crystallization of amorphous silica under compression

    Abstract: In this work, we use molecular dynamic (MD) simulation to study the structure transition and crystallization of amorphous silica (SiO2) under compression. The structural evolution of amorphous SiO2 is explained through radial distribution function, coordination number distribution, bond angle distribution and visualization. Simulation ...

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  • Real-life task in mathematics teaching: A case of statistics teaching in order to educate some economic knowledge for students at high schoolReal-life task in mathematics teaching: A case of statistics teaching in order to educate some economic knowledge for students at high school

    Tóm tắt: Dạy học toán gắn với thực tiễn đang là một yêu cầu, một xu hướng trong dạy học Toán ở trường phổ thông của Việt Nam. Những luận giải về vấn đề “thực tiễn” và việc khai thác các “nhiệm vụ thực tiễn” trong dạy học môn Toán hiện còn nhiều điều chưa thực sự rõ ràng. Nghiên cứu này góp phần đưa ra những quan điểm về “nhiệm vụ thực tiễn” và v...

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  • Investigation of pressure effect on the structure of 3Al2O3.2SiO2 systemInvestigation of pressure effect on the structure of 3Al2O3.2SiO2 system

    Abstract: This paper studies the structure of the Mullite system (3Al2O3.2SiO2) by Molecular Dynamics simulation (MDs) using the Born–Mayer–Huggins pair interaction and periodic boundary conditions. The simulation was performed with model of 5250 atoms at different pressure and at 3500 K temperature. The structural properties of the system were ...

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