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Modelling solitary Waves and Its Impact on Coastal Houses with spH Method

China Ocean Engineering 2010年第2期24卷 353-368页

作者： lIANG Dong-fang N. I. Thusyanthan s. p. gopal madabhushi 唐洪武 Department of Engineering University of Cambridge Cambridge CB2 1PZ UK KW ltd Fetcham Park House Lotcer Road Fetcham Surrey KT22 91ID UK state Key laboratory of Hydrology-Water Resources and Hydraulic Er~gineering Hohai University Nanjing 210098 China

The interaction between solid structures and free-surface flows is investigated in this study. A smoothed particle Hy- drodynamics （spH） model is used in the investigation and is verified against analytical solutions and experimental obser- vations. The main aim is to examine the effectiveness of a tsunami-resistant house design by predicting the wave loads on it. To achieve this, the solitary wave generation and ran-up are studied first. The solitary wave is generated by allowing a heavily weighted block to penetrate into a tank of water at one end, and the near-shore seabed is modelled by an inclined section with a constant slope. Then, the spH model is applied to simulate the three-dimensional flows around different types of houses under the action of a solitary wave. It has been found that the tsunami-resistant house design reduces the impact force by a factor of three.

关键词： solitary waves tsunami wave impact coastal structures spH

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Geographically distributed hybrid testing & collaboration between geotechnical centrifuge and structures laboratories

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Earthquake Engineering and Engineering Vibration 2018年第1期17卷 53-71页

作者： Mobin Ojaghi Ignacio lamata Martínez Matt s.Dietz Martin s.Williams Anthony Blakeborough Adam J.Crewe Colin A.Taylor s.p.gop.l madabhushi stuart K.Haigh Department of Engineering science University of Oxford Department of Civil Engineering University of Bristol Department of Engineering University of Cambridge

Distributed Hybrid Testing（DHT） is an experimental technique designed to capitalise on advances in modern networking infrastructure to overcome traditional laboratory capacity limitations. By coupling the heterogeneous test apparatus and computational resources of geographically distributed laboratories, DHT provides the means to take on complex, multi-disciplinary challenges with new forms of communication and collaboration. To introduce the opportunity and practicability afforded by DHT, here an exemplar multi-site test is addressed in which a dedicated fibre network and suite of custom software is used to connect the geotechnical centrifuge at the University of Cambridge with a variety of structural dynamics loading apparatus at the University of Oxford and the University of Bristol. While centrifuge time-scaling prevents real-time rates of loading in this test, such experiments may be used to gain valuable insights into physical phenomena, test procedure and accuracy. These and other related experiments have led to the development of the real-time DHT technique and the creation of a flexible framework that aims to facilitate future distributed tests within the UK and beyond. As a further example, a real-time DHT experiment between structural labs using this framework for testing across the Internet is also presented.

关键词： centrifuge distributed dynamics geotechnical hardware-in-the-loop real-time hybrid testing

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基于术前多参数MRI的瘤旁脑实质的影像组学特征预测多形性胶质母细胞瘤长短期生存期的初步研究

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国际医学放射学杂志 2017年第6期 742-742页

作者： p.prasanna J.patel s.partovi A.madabhushi p.Tiwari 崔艳芬 Department of Biomedical Engineering Case Western Reserve University

摘要目的尽管90%的胶质母细胞瘤(GBM)复发发生在瘤周脑区(pBZ),但关于其对病人生存期的影响却知之甚少。本研究利用计算机化纹理(例如,影像组学)分析,来评估

关键词：生存期 MRI

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