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- Chen, Ziwei (author), Yue, Hong (author), Kazemi, Abbas (author), Morgan, Laurence (author), Read, Roderick (author) conference paper 2024
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Giri Ajay, A. (author), Morgan, Laurence (author), Wu, Y. (author), Bretos, David (author), Cascales, Aurelio (author), Pires, Oscar (author), Ferreira, Carlos (author)This article presents a comparison study of different aerodynamic models for an X-shaped vertical-axis wind turbine and offers insight into the 3D aerodynamics of this rotor at fixed pitch offsets. The study compares six different numerical models: a double-multiple streamtube (DMS) model, a 2D actuator cylinder (2DAC) model, an inviscid free...journal article 2024
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Papachristos, George (author), Papadonikolaki, E. (author), Morgan, Bethan (author)Sociotechnical transitions are mostly seen in the literature as processes where actors and technologies in small niches peripheral to an organizational field, accumulate momentum, scale up, aggregate, and eventually bring about large-scale regime change. Foundational examples include the British transition from sailing ships to steamships and...journal article 2024
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Lechelt, Susan (author), Duffy, Clare (author), Morgan, E. (author), Murray-Rust, D.S. (author), Nissen, Bettina (author)In this case study, we document the process of engaging in an initially unplanned and informal knowledge exchange activity between academic researchers and a local performing arts company. This knowledge exchange activity quickly became a fruitful collaboration during which an academic design research prototype was reimagined as a wholly new...conference paper 2023
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Havelaar, Arie H. (author), Sapp, Amanda C. (author), Amaya, Mirna P. (author), Nane, G.F. (author), Morgan, Kara M. (author), Devleesschauwer, Brecht (author), Grace, Delia (author), Knight-Jones, Theo (author), Kowalcyk, Barbara B. (author)Foodborne disease is a significant global health problem, with low- and middle-income countries disproportionately affected. Given that most fresh animal and vegetable foods in LMICs are bought in informal food systems, much the burden of foodborne disease in LMIC is also linked to informal markets. Developing estimates of the national burden...journal article 2022
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Marques Pereira, V. (author), Wang, S. (author), Morgan, T. (author), Schut, H. (author), Sietsma, J. (author)In the present work, an ODS 12 Cr steel was characterized using Electron Microscopy techniques, in an as-received condition and after annealing treatments between 773 K and 1573 K. Results show a complex microstructure, with the presence of fine Y–Ti–O nanoparticles dispersed in the matrix. After annealing at 1573 K, the average diameter of Y...journal article 2022
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Jamieson, P. (author), Ferreira, Carlos (author), Dalhoff, P. (author), Störtenbecker, S. (author), Collu, M. (author), Salo, E. (author), McMillan, D. (author), McMorland, J. (author), Morgan, L. (author), Buck, A. (author)The upscaling of wind turbines results in fewer units per installed MW reducing infrastructure and maintenance costs of offshore wind farms. Multi rotor systems (MRS), comprising many wind turbine rotors on a single support structure, are potentially a means to maximize the upscaling benefit in achieving larger unit capacities than is...journal article 2022
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Tallyn, Ella (author), Revans, Joe (author), Morgan, E. (author), Fisken, Keith (author), Murray-Rust, D.S. (author)Smart contract systems could change the nature of last-mile deliv- ery for the better through enhanced precision, coordination and accountability. However, technological complexity poses a chal- lenge for end-users participating in the design process, making it hard to explore their experiences and incorporate their perspectives. We describe...conference paper 2021
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Ertsen, M.W. (author), Morgan, Ruth A. (author)This text builds on the shared focus of historians and engineers to understand how particular circumstances came to be. In their endeavours, engineers regularly turn attention to the past, many times with the explicit aim to build on the past. In this chapter, it is discussed why these water histories written by engineers are vulnerable to being...book chapter 2021
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Brown, Jenna A. (author), MacMahan, Jamie H. (author), Reniers, A.J.H.M. (author), Thornton, Ed B. (author), Shanks, Alan L. (author), Morgan, Steven G. (author), Gallagher, Edie L. (author)Surfzone mixing and transport on a sandy, steep (∼1/8 slope), reflective beach at Carmel River State Beach, California, are described for a range of wave and alongshore flow conditions. Depth-limited wave breaking occurred close to the shore due to the steepness of the beach, creating a narrow surf/swash zone (∼10 m wide). Fluorescent...journal article 2019
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Fujimura, Atsushi G. (author), Reniers, A.J.H.M. (author), Paris, Claire B. (author), Shanks, Alan L. (author), MacMahan, Jamie H. (author), Morgan, Steven G. (author)We investigated whether cross-shore distributions of coastal phytoplankton to the surf zone are controlled by hydrodynamics and their biological characteristics. Data from a rip-channeled beach indicate that concentrations of phytoplankton are higher in the surf zone than offshore. To examine how phytoplankton is transported toward the shore,...journal article 2018
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Shanks, Alan L. (author), Morgan, Steven G. (author), MacMahan, Jamie (author), Reniers, A.J.H.M. (author), Jarvis, Marley (author), Brown, Jenna (author), Fujimura, Atsushi G. (author), Ziccarelli, Lisa (author), Griesemer, Chris D. (author)Surf zones, regions of breaking waves, are at the interface between the shore and coastal ocean. Surf zone hydrodynamics may affect delivery of phytoplankton subsidies to the intertidal zone. Over a month of daily sampling at an intermediate surf zone with bathymetric rip currents and a reflective surf zone, we measured surf zone...journal article 2018
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Morgan, Steven G. (author), Shanks, Alan L. (author), MacMahan, Jamie H. (author), Reniers, A.J.H.M. (author), Feddersen, Falk (author)Plankton are transported onshore, providing subsidies of food and new recruits to surf-zone and intertidal communities. The transport of plankton to the surf zone is influenced by wind, wave, and tidal forcing, and whether they enter the surf zone depends on alongshore variation in surf-zone hydrodynamics caused by the interaction of breaking...review 2018
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Leal Filho, W. (author), Echevarria Icaza, L. (author), Neht, A. (author), Klavins, M. (author), Morgan, E.A. (author)The urban heat island (UHI) is a phenomenon whereby temperature levels in urban areas are higher than in surrounding rural settings. Urban heat islands are a matter of increasing concern, since they can affect communities by exacerbating air pollution and greenhouse gas emissions (due to the greater use of air conditioning) and the occurrence of...journal article 2018
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Fujimura, Atsushi G. (author), Reniers, A.J.H.M. (author), Paris, Claire B. (author), Shanks, Alan L. (author), MacMahan, Jamie H. (author), Morgan, Steven G. (author)Larvae of intertidal invertebrates need to cross the surf zone to settle in their adult habitat. Onshore transport of invertebrate larvae and detritus at a steep beach was simulated with a biophysical larval tracking model. Hydrodynamic model calculations were performed for 24 h after a 24 h spin-up stage with bathymetry and averaged wave...journal article 2017
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Bakker, M. (author), Miller, Anthony D. (author), Morgan, Leanne K. (author), Werner, Adrian D. (author)A computational approach is presented for steady Dupuit interface flow where the aquifer extends below the sea. A detailed approach is outlined to determine the head at the coastline so that the solution below the leaky seabed may be combined with any type of steady Dupuit interface flow in the aquifer below the land. The method allows for...journal article 2017
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Shanks, Alan L. (author), Morgan, Steven G. (author), MacMahan, Jamie (author), Reniers, A.J.H.M. (author)Larvae in the coastal ocean are transported toward shore by a variety of mechanisms. Crossing the surf zone is the last step in a shoreward migration and surf zones may act as semipermeable barriers altering delivery of larvae to the shore. We related variation in the structure of intertidal barnacle populations to surf zone width (surf zone...journal article 2017
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Barlow, S.T. (author), Stennett, M.C. (author), Hand, R.J. (author), Morgan, S.P. (author), Hyatt, N.C. (author)Magnox sludge waste is a major radiological hazard which needs containing. Vitrification is a viable alternative to the current baseline plan and is demonstrated here. Significant quantities of uranium and magnesium metal were successfully digested into glass melts and mostly amorphous material formed. Dissolution of the glass samples was found...conference paper 2016
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Klaver, T.P.C. (author), Nordlund, K. (author), Morgan, T. W. (author), Westerhof, E. (author), Thijsse, B.J. (author), Van De Sanden, M. C M (author)Results are presented of large-scale Molecular Dynamics simulations of low-energy He bombardment of W nanorods, or so-called 'fuzz' structures. The goal of these simulations is to see if ballistic He penetration through W fuzz offers a more realistic scenario for how He moves through fuzz layers than He diffusion through fuzz nanorods....journal article 2016
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Shanks, A.L. (author), MacMahan, J. (author), Morgan, S.G. (author), Reniers, A.J.H.M. (author), Jarvis, M. (author), Brown, J. (author), Fujimura, A. (author), Griesemer, C. (author)Larvae of many intertidal species develop offshore and must cross the surf zone to complete their onshore migration to adult habitats. Depending on hydrodynamics, the surf zone may limit this migration, especially on reflective rocky shores. As a logistically tractable analog of a rocky shore environment, we carried out a comprehensive...journal article 2015