• An isogeometric analysis approach for twodimensional steady state heat transfer problemsAn isogeometric analysis approach for twodimensional steady state heat transfer problems

    An isogeometric analysis approach for twodimensional static heat transfer problem is expressed above. Applying IGA to numerical problems lead significant effective results, as represent on above. More important that it can refine the mesh without the connection to the CAD geometry, it called h-refinement and prefinement and k-refinement, it is...

    pdf11 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 786 | Lượt tải: 1

  • Implementation and application of Dung’s model to analyze ductile fracture of metallic materialImplementation and application of Dung’s model to analyze ductile fracture of metallic material

    By implemented approach that based on backward Euler method of stress integration for Dung’s model succeed in simulating fractured prediction of the notched and round bars. The results provided the predictions of Dung’s model are very close to experiment results of Oh et al [15, 16] and GTN model in Abaqus. This work is also show the fractur...

    pdf10 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 873 | Lượt tải: 1

  • Design of indirect mras-Based adaptive control systems - Tran Thien DungDesign of indirect mras-Based adaptive control systems - Tran Thien Dung

    iscussion - The stability conditions found with the method of Lyapunov are sufficient conditions, they are not necessary. - The speed of adaptation, which can be varied by the adaptive gains ( e e ' ; ' 22 11 ) may in principle be chosen freely. In a practical system the adaptive gains are limited. - The structure of the adjustable model d...

    pdf7 trang | Chia sẻ: thucuc2301 | Ngày: 27/11/2020 | Lượt xem: 906 | Lượt tải: 1

  • An improved radial point interpolation method applied for elastic problem with functionally graded materialAn improved radial point interpolation method applied for elastic problem with functionally graded material

    The work has now developed an effective algorithm based on radial meshfree method of interpolation points. In this method, the shape functions are determined depending on the subdomain is considered a part of a rectangle bounds of the problem domain. The new definition allows us to quickly assess the function of the form from the matrix to a...

    pdf8 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 864 | Lượt tải: 1

  • Analyzing event related potentials using adaptive filterAnalyzing event related potentials using adaptive filter

    The ERP signal is a specific indicator of the brain function and can be potentially used as predictor of many applications in neurology research, diagnosis or treatment. ERPs are also related to the circumscribed cognitive process and can be use in neurofeedback application. Extracting ERP signal on EEG background suggests high reliability a...

    pdf8 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 787 | Lượt tải: 1

  • Model reduction in schur basis with pole retention and h∞-Norm error bound - Dao Huy DuModel reduction in schur basis with pole retention and h∞-Norm error bound - Dao Huy Du

    CONCLUSIONS Different from modal truncation or balanced truncation techniques, where eigenvalue decomposition or singular value decomposition are used, the algorithms presented in this paper use only Schur decomposition. Although the algorithms may not success for every system, this is the first attemp for triangularizing matrix A. The main...

    pdf8 trang | Chia sẻ: thucuc2301 | Ngày: 27/11/2020 | Lượt xem: 870 | Lượt tải: 1

  • An interaction integral method for evaluating T-Stress for two-dimensional crack problems using the extended radial point interpolation methodAn interaction integral method for evaluating T-Stress for two-dimensional crack problems using the extended radial point interpolation method

    The interaction integral method applied to two-dimensional crack problems to evaluate Tstress using the XRPIM has been presented. Three numerical examples in which the T-stress are evaluated by means of the M-integral. The numerical results obtained are good agreement with known results from the references. The presented approach has shown se...

    pdf8 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 859 | Lượt tải: 1

  • Neural network-Based tonal feature for vietnamese speech recognition using multi space distribution model - Nguyen Van HuyNeural network-Based tonal feature for vietnamese speech recognition using multi space distribution model - Nguyen Van Huy

    DISCUSSION AND CONCLUSION For the purpose of how to adapt BNF which is used for extracting tone feature, to MSDHMM for Vietnamese ASR, we presented a process of extracting tonal feature based on a bottle neck MLP network that so called tonal bottle neck feature (TBNF) which included both voiced/unvoiced decision. In Table 1, based on careful...

    pdf8 trang | Chia sẻ: thucuc2301 | Ngày: 27/11/2020 | Lượt xem: 915 | Lượt tải: 1

  • Extended iso geometry analysis of crack propagationExtended iso geometry analysis of crack propagation

    We have applied the XIGA to solve the crack propagation problems. Several numerical examples are considered. The obtained results in stress intensity factor and crack path are investigated and compared with other numerical methods such as XFEM and scale boundary finite element method. Very good agreements on the solutions are found. It is sh...

    pdf9 trang | Chia sẻ: yendt2356 | Ngày: 27/11/2020 | Lượt xem: 988 | Lượt tải: 1

  • Design a fuzzy controller for a magnetic levitation sysem in the laboratory - Nguyen Hoai NamDesign a fuzzy controller for a magnetic levitation sysem in the laboratory - Nguyen Hoai Nam

    CONCLUSIONS AND FUTURE WORK In this work, we designed and made a magnetic levitation system in the labratory which can be used for experimental and educational purposes. Two controllers, PI and fuzzy, were designed and implemented on computer with the usage of Arduino Uno. Some comparisions have been made for the these controllers by runnin...

    pdf5 trang | Chia sẻ: thucuc2301 | Ngày: 27/11/2020 | Lượt xem: 939 | Lượt tải: 1