• Theoretical kinetics study of the HO2 and C2H5OH: Hydrogen abstraction reactionTheoretical kinetics study of the HO2 and C2H5OH: Hydrogen abstraction reaction

    Abstract: C2H5OH has been using as an alternative fuel for decades; HO2 also plays a pivotal role in the combustion. The kinetics and mechanism for the reaction between C2H5OH and HO2 radical have been investigated using the molecular parameters for the reactants, transition states and products predicted at the CCSD(T)//B3LYP/6-311++G(3df,2p) le...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 4 | Lượt tải: 0

  • Adsorption of 2-Butanone on pristine graphene: A first-principles studyAdsorption of 2-Butanone on pristine graphene: A first-principles study

    Abstract: This study investigates the adsorption mechanism of 2-butanone (ethyl methyl ketone) on the surface of graphene by using Density Functionals Theory (DFT). A 2-butanone molecule was chosen as a selected example of main volatile organic compounds (VOCs) in exhaled breath. To describe the absorption of 2-butanone and graphene substrate, t...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 3 | Lượt tải: 0

  • An efficient method for automatic recognizing text fields on identification cardAn efficient method for automatic recognizing text fields on identification card

    Abstract: The problem of optical character and handwriting recognition has been interested by researchers in long time ago. It has obtained great results in theory as well as practical applications. However, the accuracy of identification is still limited, especially in the case of low-quality input images. In this article, we propose an efficie...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 3 | Lượt tải: 0

  • Optical back-propagation for nonlinear compensation in OFDM-based long range-passive optical networksOptical back-propagation for nonlinear compensation in OFDM-based long range-passive optical networks

    Abstract: In direct-detection optical OFDM system, the nonlinear impairment is the key factor that limits the system performance. The back-propagation techniques in digital and optical domains have been proposed to compensate the nonlinear effects, however they can be unsuitable for long-range passive optical networks (LR-PONs) due to their impl...

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  • Gas sensors based on U-shaped graphene nanoribbons: A first-principles studyGas sensors based on U-shaped graphene nanoribbons: A first-principles study

    Abstract: In this paper, I present first-principle calculations which are performed by using combination of DFT and NEGF methods to investigate the adsorption of CO2 and NH3 molecules on straight and U-shaped GNRs junctions. The density of state, molecular orbital, adsorption energy, transmission spectrum, and current-voltage characteristics wer...

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  • Impact of parallel computing on study of time evolution of a quantum impurity system in response to a quenchImpact of parallel computing on study of time evolution of a quantum impurity system in response to a quench

    Abstract: In an arbitrary system subjected to a quench or an external field that varies the system parameters, the degrees of freedom increases double in comparison to that of an isolated system. In this study, we consider the quantum impurity system subjected to a quench, and measure the corresponding time-evolution of the spectral function, wh...

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  • Phonon Characterization, Structural and Optical Properties of Type-II CdSe/CdTe core/shell and Type-II/type-I CdSe/CdTe/ZnS core/shell/shell Quantum DotsPhonon Characterization, Structural and Optical Properties of Type-II CdSe/CdTe core/shell and Type-II/type-I CdSe/CdTe/ZnS core/shell/shell Quantum Dots

    Abstract: The CdSe, type-II CdSe/CdTe core/shell and type-II/type-I CdSe/CdTe/ZnS core/shell/shell quantum dots (QDs) were successfully synthesized in a noncoordinating solvent. The phonon characterizations, optical properties and structures of the synthesized QDs were characterized by Raman scattering (RS) spectra, photoluminescence (PL) spectr...

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  • Gelation of Anisotropic Colloids with Short-Range AttractionGelation of Anisotropic Colloids with Short-Range Attraction

    Abstract: Colloidal gels are space-spanning networks that form solids at dilute particle volume fractions. The kinetic process of gelation is central to understand the flow of complex fluids. Here, we report a simulation study of colloidal gelation of anisotropic colloids with attractive LennardJones potential. These forces quasi-model the critic...

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  • The Ettingshausen Effect in Doped Semiconductor Superlattice under the Influence of Confined Optical PhononThe Ettingshausen Effect in Doped Semiconductor Superlattice under the Influence of Confined Optical Phonon

    Abstract. The electron – optical phonon scattering is considered in detail to studying the Ettingshausen effect in doped semiconductor superlattice under the influence of phonon confinement and laser radiation. The analytical expressions for tensors and the Ettingshausen coefficient are obtained by using the kinetic equation method. The Ettingsh...

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  • Phủ tổng quát của môđun và một vài kết quả liên quanPhủ tổng quát của môđun và một vài kết quả liên quan

    1. Giới thiệu về một số khái niệm Singh và Srivastava trong [1] đã giới thiệu lớp môđun đối bất biến tự đẳng cấu, nó là khái niệm đối ngẫu của môđun bất biến tự đẳng cấu được nghiên cứu bởi Lee và Zhou trong [2]. Trong [3], Guil Asensio, Tutuncu và Srivastava đã tổng quát các khái niệm này và đưa ra một số kết quả đẹp. Phần đầu bài viết này, ...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 3 | Lượt tải: 0