• Experimental study of laminar separation phenomenon combining with numerical calculationsExperimental study of laminar separation phenomenon combining with numerical calculations

    The experimental work combining with numerical calculations permits to deduce some following remarks: - Separation positions of the considered laminar flows are similar when comparing experimental results and numerical results. - Laminar flow regime is very sensitive to the boundary layer separation, much more than in comparison with turbulent...

    pdf10 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 448 | Lượt tải: 0

  • Dynamic characteristics of elastically supported beam subjected to a compressive axial force and a moving loadDynamic characteristics of elastically supported beam subjected to a compressive axial force and a moving load

    The paper investigated the dynamic characteristics of elastically supported beam subjected to an eccentric compressive axial force and a moving point load. The equations of motion for the system have been constructed by using the Galerkin finite element method. The time histories for normalized mid-span deflection and the dynamic magnification f...

    pdf19 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 401 | Lượt tải: 0

  • Managing the exploitation life of the mining machinery for an unlimited duration of timeManaging the exploitation life of the mining machinery for an unlimited duration of time

    According to the results reached during our research work, the possible solution for the methodology of establishing the exploitation life of the capital mining equipment is founded on the philosophy of the dynamic programming, namely, on the models of replacement with unlimited interval. It was concluded that this approach is characterized by ...

    pdf13 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 453 | Lượt tải: 0

  • Optimisation of production machine scheduling using a two level mixed optimisation methodOptimisation of production machine scheduling using a two level mixed optimisation method

    A flow chart at Figure 4 shows the algorithm used for evaluation of the optimal choice of machines and OT hours for each work order in the wake of given wait time for each machine and production time required for each machining operation given in the work orders. It may be noted that in the given problem the author has not considered the option...

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  • Managing the exploitation life of the mining machinery for a limited duration of timeManaging the exploitation life of the mining machinery for a limited duration of time

    The optimum solution aimed for exploitation of machinery life, obtained in the described manner, should not be directly recommended for accepting and application to the management of a mining company. It is required primarily to carry out the overall economic analysis that includes the analysis of sensitivity, analysis of efficiency and the ana...

    pdf10 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 359 | Lượt tải: 0

  • Learning and transferring motion style using Sparse PCALearning and transferring motion style using Sparse PCA

    In this paper, we introduce a novel algorithm for motion style transfer task. Our method is an integration of matrix factorization and an artistic style learning technique. This work can deal with a shortage of large motion datasets since it can be applied to small ones. In spite of gaining some promising outcomes, there are several limitat...

    pdf10 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 383 | Lượt tải: 0

  • Nonlinear postbuckling of eccentrically stiffened functionally graded plates and shallow shellsNonlinear postbuckling of eccentrically stiffened functionally graded plates and shallow shells

    A formulation of the governing equations of eccentrically reinforced functionally graded plates and shallow shells based upon the classical shell theory and the smeared stiffeners technique with von Karman-Donnell nonlinear terms has been presented. By use of Galerkin method, explicit expressions of critical buckling loads and nonlinear load-def...

    pdf17 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 386 | Lượt tải: 0

  • A formula of evaluating structural safety based on fuzzy set theoryA formula of evaluating structural safety based on fuzzy set theory

    Results obtained by the new formula and the formula [2] are the same. However, the new formula is applied easily in cases we can’t define the intersectional part area of two sets S˜ and R˜, while the formula in [2] is not applicable. It can be seen the "Formula of area ratio" is more general for evaluating safety of structures. Because this for...

    pdf8 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 369 | Lượt tải: 0

  • New concepts of theory of gearing and a method for reverse synthesis of the gearingNew concepts of theory of gearing and a method for reverse synthesis of the gearing

    Base on the results of our research for years into the investigation of the theoretical and practical application of the gearing we have developed the following theories: - Theory of gearing with the favourite contact ellipse. - Theory of gearing with the elastohydrodynamic film thickness. - Generation of gear without the restriction of the use...

    pdf9 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 402 | Lượt tải: 0

  • Decision making in reverse logistics using system dynamicsDecision making in reverse logistics using system dynamics

    This research analyses the Reverse Logistics network using SD methodology. After a well work-out of the reverse logistics model, we come up with the impression that the study of this field must continue. It is important to understand the necessity of the reverse channel and the economical and ecological profits from it. We believe that in the n...

    pdf14 trang | Chia sẻ: huongthu9 | Ngày: 12/08/2021 | Lượt xem: 421 | Lượt tải: 0