• Implementation of GLCM for features extraction and selection of batik imagesImplementation of GLCM for features extraction and selection of batik images

    Abstract – Batik is a craft that has high artistic value and has been a part of Indonesian culture (especially Java) for a long time. Batik cloth in Indonesia has various types of batik textures, batik cloth colors, and batik fabric patterns that reflect the regional origins of the batik cloth. Regarding the image of batik, the texture feature i...

    pdf5 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 242 | Lượt tải: 0

  • Application of air quality index and inverse distance weighting for mapping the distribution of air pollution at several urban districts of Hanoi cityApplication of air quality index and inverse distance weighting for mapping the distribution of air pollution at several urban districts of Hanoi city

    Abstract. The air pollution level can be assessed using air quality index - AQI calculated from the concentration of some gases and particle matters which are measured at ambient air quality monitoring stations. The calculated AQI values are characterized by temporal continuity but spatial discontinuity. However, AQI values of each monitoring s...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 251 | Lượt tải: 0

  • A feature representation method based on heterogeneous information network for android malware detectionA feature representation method based on heterogeneous information network for android malware detection

    Abstract. The rapid growth in number, sophistication, and diversity of Android malware poses a great difficulty in extracting and analyzing features and behaviors. The traditional approach, which using only API calls and permissions to extract features, has no longer yielded meaningful results. In this research, we propose a method that utilize...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 232 | Lượt tải: 0

  • Optimal provisioning of optical networks with asymmetric nodesOptimal provisioning of optical networks with asymmetric nodes

    Abstract. Wavelength Switched Optical Networks (WSONs) have been designed to take advantage of all optical switching fabrics with a high level of automation and efficiency. Therein, the Wavelength Selective Switches (WSS) represent the core switching elements with a technology enabling multi-degree Reconfigurable Optical Add/Drop Multiplexers (...

    pdf13 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 240 | Lượt tải: 0

  • Xây dựng và sử dụng phim học tập trong dạy học kiến thức về lực hấp dẫnXây dựng và sử dụng phim học tập trong dạy học kiến thức về lực hấp dẫn

    Tóm tắt. Phim học tập là một trong những phương tiện dạy học cần sử dụng ở lớp học, nội dung phim có thể mô tả diễn biến quá trình vật lí thực hay giới thiệu một hiện tượng nghịch lí hoặc một phát minh trong lịch sử vật lí, một ứng dụng công nghệ của vật lí, do đó, nó hỗ trợ tốt cho người học trong quá trình giải quyết vấn đề. Nội dung kiến thức...

    pdf11 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 364 | Lượt tải: 0

  • On the existence and uniqueness of solutions to 2D g-benard problem in unbounded domainsOn the existence and uniqueness of solutions to 2D g-benard problem in unbounded domains

    The existence and long-time behavior of solutions in terms of existence of an attractor for the 2D B´enard problem have been studied in [3] in the autonomous case and in [1] in the non-autonomous case. The 2D g-Navier-Stokes equations and its relationship with the 3D Navier-Stokes equations in the thin domain Ω g was introduced by Roh in [12]....

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 254 | Lượt tải: 0

  • Depletion density of ideal gas Bose-Einstein condensate by two parallel platesDepletion density of ideal gas Bose-Einstein condensate by two parallel plates

    1. Introduction It is well-known that the system of indistinguishable Bose particles is not affected by the Heisenberg uncertainty principle. Thereby, the particles are allowed to occupy the same state [1]. For a system of Bose gas, a number of the atoms will be condensed when the temperature is decreased to a critical temperature TC. Theoretic...

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  • Phase transition of the Reissner-Nordstrom black holePhase transition of the Reissner-Nordstrom black hole

    Abstract. The phase transition of matter outside the four-dimensional Reissner-Nordstr¨om charged black hole have been investigated. Based on the metric we have found analytic expressions for thermodynamic quantities as temperature, pressure and isobaric specific heat. The numerical results have shown that for temperatures T less than the criti...

    pdf8 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 228 | Lượt tải: 0

  • Exponential stability of a class of positive nonlinear systems with multiple time-varying delaysExponential stability of a class of positive nonlinear systems with multiple time-varying delays

    Abstract. This paper is concerned with the problem of exponential stability of a class of positive nonlinear systems with heterogeneous time-varying delays which describe a model of Hopfield neural networks with nonlinear self-inhibition rates. Based on a novel comparison technique via a differential and integral inequalities, testable conditio...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 270 | Lượt tải: 0

  • Optical properties of gold nano conjugated with proteinsOptical properties of gold nano conjugated with proteins

    Abstract: The optical properties of protein-conjugated metallic nanoparticle are theoretically investigated based on the Mie theory and the core-shell model. Our numerical calculations show that this finding is in good agreement with previous experiments. We provide better interpretation for the origin of optical peaks in the absorption spectrum of...

    docx6 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 219 | Lượt tải: 0