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Performance

Xem 1-20 trên 16313 kết quả Performance
  • Part 2 book "Electrical equipment handbook troubleshooting and maintenance" includes content: Synchronous machines, synchronous generators, generator components, auxiliaries, and excitation, generator main connections, performance and operation of generators, generator surveillance and testing, generator inspection and maintenance, generator operational problems and refurbishment options, circuit breakers, fuses,... and other contents.

    pdf272p dianmotminh01 17-05-2024 0 0   Download

  • In this paper, the tensile performance of 3D printed continuous fiber reinforced thermoplastic materials is investigated. Continuous carbon fiber and Polyethylene terephthalate glycol (PetG) are employed as reinforcement and matrix, respectively. Pure solid plastic infill, unidirectional fiber infill, and +45/-45 fiber infill patterns specimens are selected for printing and testing.

    pdf9p dathienlang1012 03-05-2024 1 0   Download

  • Bài báo "Nghiên cứu ảnh hưởng của hàm lượng sợi thép gia cường đến sức kháng uốn của bê tông tính năng cao" tập trung nghiên cứu ảnh hưởng của hàm lượng sợi thép đến sức kháng uốn của bê tông tính năng cao (high performance fiber-reinforced concrete - HPFRC) thông qua thực nghiệm. Hai thông số cơ học dưới tải uốn được nghiên cứu bao gồm cường độ kéo uốn và khả năng chịu độ võng. Mời các bạn cùng tham khảo!

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  • In this study, we developed a fluid flow solver based on the Lattice Boltzmann method to resolve those difficulties. Validation of the solver is performed through two flow problems, including impulsively started flow past a single circular cylinder at Re=3000 and pitching airfoil with large amplitudes and frequencies. The obtained results are in good agreement with the experimental and computational results listed in the references.

    pdf9p dathienlang1012 03-05-2024 0 0   Download

  • In this research, a triangle nose has applied to reduce resistance acting on a large hull of the Pontoon in full scale by using the CFD, ANSYS-Fluent. An original hull of the Pontoon with and without a triangle nose at bow have been computed and compared each other results. From the obtained results of comparison from the Pontoon with and without a triangle nose, the effects of triangle nose on hydrodynamic performance and resistance acting on hull of the Pontoon were shown.

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  • In this research, hydrodynamic performance of a cargo ship system rudder – propeller in full scale, with a different distance gap between rudder and propeller was computed by using a commercial Computational Fluid Dynamic (CFD) code. Firstly, the original system rudder – propeller of a 5500 ton cargo ship in full scale was simulated the hydrodynamic performance and validated CFD results.

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  • Trans-arterial hemoembolization (TACE) usually indicated for unresectable hepatocellular carcinoma (HCC) on purpose as a bridging, downstaging or palliative treatment. Liver Imaging Reporting and Data Systems Treatment Response (LR-TR) was created to evaluate each lesion post-TACE, which has localized and is suitable for determining whether the tumor is still viable or Non-viable.

    pdf8p vicarlos 16-05-2024 0 0   Download

  • This study is to determine impacts of the dynamics of digital transformation as a strategic choice of banks on their performance under constant changes of technology, notably financial technologies and relatively stable market conditions such as macroeconomic policies, legal framework and industry structure. A sample of 23 Listed Commercial Banks in Vietnam was used that is based on the availability of ICT readiness index as a measure for the banks’ initial stages to prepare for digital transformation journey.

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  • This study presents an overview of the research as well as differences in knowledge infrastructure capability and knowledge processe capability in businesses. At the same time, based on literature review, this article also focuses on carefully analyzing the impact of knowledge infrastructure capacity and knowledge managemen process capability on performance results. In addition, the impact of knowledge infrastructure capacity on the knowledge process capability is also focused on analysis.

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  • In the paper "Finite element analysis for the composite sandwich plate using the homogenization method", we propose a homogeneous model for the composite sandwich plate. Accordingly, the 3D plate model will be replaced by a 2D homogeneous panel. Analytical calculations were performed for both models. The proposed model is confirmed by comparing the results obtained with the 3D plate model. The findings of this research will help us continue to build and finalize a homogenous model for a variety of structures.

    pdf7p dathienlang1012 03-05-2024 0 0   Download

  • Bài báo "Thực nghiệm ứng xử đốt dầm lắp ghép bê tông cường độ siêu cao (UHPC) lắp ghép dưới tác dụng tải trọng thẳng đứng" trình bày kết quả nghiên cứu ứng suất biến dạng của 02 đốt dầm lắp ghép được chế tạo từ bê tông cường độ siêu cao (130MPa) UHPC (Ultra-High Performance Concrete). Hai đốt dầm được liên kết với nhau thông qua mối nối và cáp dự ứng lực. Đốt dầm có cấu tạo dạng chữ U, có chiều rộng là 4m chiều dài đốt 2m, chiều dày bản đáy 6.5cm. Thí nghiệm thực hiện trên 02 đốt dầm lắp ghép và là thí nghiệm uốn 3 điểm.

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  • In this research, a prototypical polymer system reinforced by a Silica nanoscopic inclusion is considered. Molecular Dynamics (MD) simulations are performed and used to characterize the conformational properties of the polymer chains in the neighborhood of the inclusion. It is shown that these chains are characterized by a specific tangential orientation which, together with the density profile and variations in chain mobility, allows for the geometric definition of the interphase region.

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  • Part 2 book "Air conditioning engineering" includes contents: Cooling load, the fundamentals of vapour compression refrigeration, air cooler coils, the rejection of heat from condensers and cooling towers, refrigeration plant, automatic controls, vapour absorption refrigeration, airflow in ducts and fan performance, ventilation and a decay equation, filtration.

    pdf301p dianmotminh01 14-05-2024 0 0   Download

  • When devices connecting to the Internet, one of the most problem occurred is security. There are many researchers focusing on this problem so far. Diffie-Hellman type key exchange protocols have a certain role in information security applications. This article proposes to perform encryption using pseudo-random strings to prevent unwanted attacks.

    pdf7p vijaychest 16-05-2024 2 1   Download

  • Lecture Petroleum production engineering - Chapter 2.1: IPR, future IPR and multiple zones IPR. This lesson provides students with content about: future IPR; multiple zones IPR; multiple zones IPR with interflow; composite IPR;... Please refer to the detailed content of the lecture!

    pdf52p mothuahoa 04-05-2024 0 0   Download

  • Lecture Petroleum production engineering - Chapter 2.2: IPR, Darcy’s law and single phase IPR. This lesson provides students with content about: Darcy’s experiment; Darcy’s law; liquid flow rate; cross sectional area; single Phase IPR; future linear IPR;... Please refer to the detailed content of the lecture!

    pdf46p mothuahoa 04-05-2024 1 0   Download

  • Lecture Petroleum production engineering - Chapter 2.3: IPR, multiphase IPR. This lesson provides students with content about: multiphase IPR; Darcy’s law; Darcy’s Law in cylindrical coordinates; single phase and multiphase IPR; vogel IPR; productivity index;... Please refer to the detailed content of the lecture!

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  • Lecture Petroleum production engineering - Chapter 2.4: IPR, IPR for undersaturated reservoirs. This lesson provides students with content about: undersaturated reservoir; single phase reservoir; saturated reservoir; undersaturated reservoir; vogel undersaturated reservoir;... Please refer to the detailed content of the lecture!

    pdf40p mothuahoa 04-05-2024 0 0   Download

  • Lecture Petroleum production engineering - Chapter 2.5: IPR, IPR from well tests. This lesson provides students with content about: vogel undersaturated reservoir; IPR from well tests; continuity at bubble point – equal values; smoothness at bubble point – equal derivatives; undersaturated reservoir;... Please refer to the detailed content of the lecture!

    pdf58p mothuahoa 04-05-2024 0 0   Download

  • Lecture Petroleum production engineering - Chapter 2.6: IPR, skin effect - IPR. This lesson provides students with content about: skin effect - IPR; bottomhole flowing pressure (psi); Harrison extension; undersaturated case;... Please refer to the detailed content of the lecture!

    pdf53p mothuahoa 04-05-2024 0 0   Download

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