https://dlib.phenikaa-uni.edu.vn/handle/PNK/6529 Bộ sưu tập tài liệu học liệu mở dành cho ngành: kỹ thuật điện; điện tử-viễn thông Wed, 22 Apr 2026 06:35:52 GMT 2026-04-22T06:35:52Z https://dlib.phenikaa-uni.edu.vn/handle/PNK/6533 Title: Wireless power transfer: Fundamentals and technologies Authors: Mohamed, Zellagui Abstract: This book presents some of the fundaments of wireless power transfer using inductively coupled coils, high efficiency power integrated circuits, together with recent research results for dynamic wireless power transfer for in-motion objects or vehicles. Description: License: CC By 4.0 Book Fri, 01 Jan 2016 00:00:00 GMT https://ikr.inceif.org/retrieve/61953681-a0de-473f-ae4f-4b2f53c7254d/Wireless Power Transfer-2016.pdf.jpg 2016-01-01T00:00:00Z https://dlib.phenikaa-uni.edu.vn/handle/PNK/7987 Title: Wear monitoring method of water-lubricated polymer thrust bearing based on ultrasonic reflection coefficient amplitude spectrum Authors: Changxiong, Ning; Fei, Hu; Wu, Ouyang Abstract: The water-lubricated thrust bearings of the marine rim-driven thruster (RDT) are usually composed of polymer composites, which are prone to serious wear under harsh working conditions. Ultrasonic is an excellent non-destructive monitoring technology, but polymer materials are characterized by viscoelasticity, heterogeneity, and large acoustic attenuation, making it challenging to extract ultrasonic echo signals. Therefore, this paper proposes a wear monitoring method based on the amplitude spectrum of the ultrasonic reflection coefficient. The effects of bearing parameters, objective function, and algorithm parameters on the identification results are simulated and analyzed. Taking the correlation coefficient and root mean square error as the matching parameters, the thickness, sound velocity, density, and attenuation factor of the bearing are inversed simultaneously by utilizing the differential evolution algorithm (DEA), and the wear measurement system is constructed. Description: CC BY Book Sun, 01 Jan 2023 00:00:00 GMT https://ikr.inceif.org/retrieve/fef87ee6-625b-4c52-bcaf-c8829fd875cb/Wear monitoring method of water-lubricated polymer thrust bearing based on ultrasonic reflection coefficient amplitude spectrum-2023.pdf.jpg 2023-01-01T00:00:00Z https://dlib.phenikaa-uni.edu.vn/handle/PNK/8079 Title: Waste Clay Brick as a Part Binder for Pavement Grade Geopolymer Concrete Authors: Janitha, Migunthanna; Pathmanathan, Rajeev; Jay, Sanjayan Abstract: Geopolymer concrete (GPC) was developed using one-part binders made from a mixture of waste clay brick (WCB) powder, fly ash, and slag in the precursor. Its suitability for use in rigid pavement construction was evaluated based on fresh properties, hardened properties, and durability characteristics. The effects of sealed and unsealed ambient curing and the size of the WCB particles on the strength of the GPC were also examined. Sealed ambient curing significantly increased the strength of the GPC, with longer sealing periods resulting in even stronger concrete. Sealing prevented water loss from the samples and reduced carbonation, protecting the concrete from microcracks caused by dehydration. The GPC created in this study met the basic strength requirements for use in rigid pavement applications, with 28-day compressive strengths above 40 MPa and flexural strengths above 4.5 MPa. Description: CC BY Book Sun, 01 Jan 2023 00:00:00 GMT https://ikr.inceif.org/retrieve/afb67a5b-2fac-44ee-9a7a-fe5cdb19ef95/Waste Clay Brick as a Part Binder for Pavement Grade Geopolymer Concrete-2023.pdf.jpg 2023-01-01T00:00:00Z https://dlib.phenikaa-uni.edu.vn/handle/PNK/7977 Title: Vortex-induced vibration effect of extreme sea states over the structural dynamics of a scaled monopile offshore wind turbine Authors: Juan Gabriel, Rueda-Bayona; Andrés, Guzmán; Juan José Cabello, Eras Abstract: In order to demonstrate the relevance of considering Vortex-Induced Vibrations (VIV) in the structural design of marine structures, this study proposes an alternative experimental and analytical approach in wet conditions to measure the fluid–structure interaction in the near field and quantify the viscous damping with measured structural and 3D hydrodynamic accelerations. It was demonstrated that VIV caused and incremented 5.00% of the structural damping coefficient, and the extreme wind loading increased 74% of the offshore monopile’s structural damping, demonstrating the relevance of the high non-linear hydrodynamics effects during selecting parameters into the structural design in offshore applications. Description: CC bY Book Sat, 01 Jan 2022 00:00:00 GMT https://ikr.inceif.org/retrieve/08c899d4-9b8e-407d-91d7-2ee32748c56d/Vortex-induced vibration effect of extreme sea states over the structural dynamics of a scaled monopile offshore wind turbine-2022.pdf.jpg 2022-01-01T00:00:00Z