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Item Metadata only1950s Science Fiction Cinema’s Depersonalisation Narratives in Britain(2014-02-01) Jones, MatthewDepersonalisation narratives in 1950s sf cinema have most frequently been understood as reflections of American anxieties about Soviet infiltration and subversion. However, these films were also popular in Britain, where anti-communist sentiment manifested in different forms. This article positions two films, Britain’s Quatermass II (Guest 1957) and America’s It Came from Outer Space (Arnold 1953), in relation to this divergent British reception context. Resisting the tendency to see the genre only in relation to the US, it suggests the possibility of a unique and largely unexplored British reception history of 1950s sf cinema. Item Embargo20 years of ETHICOMP: time to celebrate?(Elsevier, 2015-08-10) Stahl, Bernd Carsten, 1968-; Ess, C. M.Purpose – The purpose of this paper is to give an introduction to the special issue by providing background on the ETHICOMP conference series and a discussion of its role in the academic debate on ethics and computing. It provides the context that influenced the launch of the conference series and highlights its unique features. Finally, it provides an overview of the papers in the special issues. Design/methodology/approach – The paper combines an historical account of ETHICOMP and a review of the existing papers. Findings – ETHICOMP is one of the well-established conference series (alongside IACAP and CEPE) focused on ethical issues of information and computing. Its special features include: multidisciplinary and diversity of contributors and contributions; explicit outreach to professionals whose work is to design, build, deploy and maintain specific computing applications in the world at large; creation of knowledge that is accessible and relevant across fields and disciplines; intention of making a practical difference to development, use and policy of computing principles and artefacts; and creation of an inclusive, supportive and nurturing community across traditional knowledge silos. Originality/value – The paper is the first one to explicitly define the nature of ETHICOMP which is an important building block in the future development of the conference series and will contribute to the further self-definition of the ETHICOMP community. Keywords Ethics, Computer ethics, Computer science Paper type Viewpoint Item Metadata only2001: A Space Odyssey (Second Edition)(BFI, 2020) Kramer, PeterStanley Kubrick's 2001: A Space Odyssey (1968) is widely regarded as one of the best films ever made. This book explores the complex origins of the film, the unique shape it took, and the extraordinary impact it made on audiences in the late 1960s. Based on new research in the Stanley Kubrick Archive at the University of the Arts London, this study challenges many of the widely held assumptions about the film. It argues that 2001 was Kubrick's attempt to counter the deep pessimism of his previous film Dr. Strangelove, or: How I Learned to Stop Worrying and Love the Bomb (1964), which culminates in the explosion of a nuclear 'doomsday' device, with a more hopeful vision of humanity's future, facilitated by the intervention of mysterious extra-terrestrial artifacts. The book traces the project's development from the first letter Kubrick wrote soon after the release of Dr. Strangelove to his future collaborator, leading Science Fiction and science writer Arthur C. Clarke, all the way to the dramatic changes Kubrick made to the film shortly before its release by MGM in spring 1968. The book also explores 2001's close links to many of the most successful trends in Hollywood filmmaking across the 1950s and 1960s, and to public debates about the space race and the search for extra-terrestrial intelligence. After examining what was described at the time as one of MGM's biggest ever promotional campaigns, the study documents the film's enormous and ever growing success with both critics and audiences across the late 1960s and early 1970s, and its long-term impact on Hollywood’s output of Science Fiction movies This second edition features a new foreword which highlights the contemporary resonances of this classic movie with regards to debates about climate change and nuclear weapons.. Item Metadata only2001: Odissea nello spazio (2001: A Space Odyssey)(Marsilio Editori, 2019) Kramer, PeterThis essay examines some of the letters in which American cinemagoers described, and sometimes explained, their (largely positive) experiences with Stanley Kubrick's 2001: A Space Odyssey to the filmmaker. It also explores the ways in which the film had been presented to prospective audiences in the United States in the run-up to, and during, its initial release in 1968. How did publicity and advertising prepare people for the film? What expectations did they raise, and how might these expectations have shaped viewers’ engagement with 2001? How does the film work with, and against, audience expectations? Item Metadata only2D - 3D - 4D(Andersen M Studio, 2012) Richardson, MartinApart from being a security device holography has the potential to become the ultimate 3-D format within the next few decades as the holographic image can be called a true replica indistinguishable from reality. But there is much more to holographic imagery than mere replication. Holography had its beginnings in 1948. Denis Gabor, a Hungarian-born physicist working for the electrical company British Thompson Huston based in Rugby, UK, who was atempting to improve the resolution of electron microscope images and hit upon the idea of recording the actual radiated wavefront emanating from the object. As a beam of electrons could not at the time be made coherent he used green-filtered light light from a mercury vapour lamp. In a seminal paper describing his findings (Gabor 1949) he explained how light of a single frequency carried all the information describing the object contained in the light wavefront and soon after named his invention holography, the word holography comes from the Greek words ὅλος (hólos; "whole") and γραφή (grafē; "writing" or "drawing"). This, he argued, could be recorded on a photographic emulsion. He succeeded in achieving this after a fashion, though his mercury lamp produced a band of wavelengths nowhere near as narrow as he would have desired. As a result of this large bandwidth his earliest images had to be very small two-dimensional transparencies no larger than a pinhead, and even these were blurred, and distorted by an unwanted complementary image directly in front. But although his experiment was crude and unconvincing his theory was sound, and he was eventually to receive the Nobel Prize for Physics in 1971 for his ingenuity, though others had needed to find methods of making his ideas workable. Today holograms appear everywhere, on bank cards, passes and any document that needs security protection. Holography also finds applications in the decorative trade, and in engineering, where it is used in nondestructive testing in the form of holographic interferometry. Item Open AccessA 2d-Numerical Study on Slot Jet Applied to a Wind Turbine as a Circulation Control Technique(XII International Conference on Computational Heat, Mass and Momentum Transfer, 2019-09) Petracci, Ivano; Manni, Luca; Angelino, Matteo; Corasaniti, Sandra; Gori, FabioA study on the feasibility of the Circulation Control (CC) technique for wind turbines is proposed. The CC was born in aeronautic field to improve the lift force on the wings, allowing the short take-off and landing of aircraft. It consists in blowing air at a relatively high speed over a rounded trailing edge. The thin jet of air remains attached to the convex curved surface, imposing a certain curvature to the outer streamlines, and, hence, increasing the lift force of the airfoil. Aim of this study is to numerically investigate the advantages on a wind turbine, based on the S809 airfoil, taking into account the energy related considerations, as the cost of the jet production. The paper, after a thorough evaluation of the increase of the generated power, finds that this technique could be promising in the energy harvesting aim. Item Metadata only2PROM: A two-phase image retrieval optimization on dataspace using predictive modeling(IEEE, 2012) Fanzou Tchuissang, G. N.; Wang, N.; Kuicheu, N. C.; Siewe, Francois; Xu, D. Item Open Access3-D Printing of Flexible Two Terminal Electronic Memory Devices(Materials Research Society, 2018-01-10) Salaoru, Iulia; Paul, Shashi; Maswoud , S.Recent strategy in the electronics sector is to ascertain the ways to make cheap, flexible and environmentally friendly electronic devices. The 3D inkjet printing technology is based on the Additive Manufacturing concept and it is with no doubt capable of revolutionising the whole system of manufacturing electronic devices including: material selection; design and fabrication steps and device configuration and architecture. Thus, 3D inkjet printing technology (IJP) is not only one of the most promising technologies to reduce the harmful radiation/ heat generation but also achieve reductions in manufacturing cost. Here, we explore the potential of 3D – inkjet printing technology to provide an innovative approach for electronic devices in especially information storage elements by seeking to manufacture and characterise state-of-art fully inkjet printed two terminal electronic memory devices. In this work, ink-jettable materials (Ag and PEDOT:PSS) were printed by a piezoelectric Epson Stylus P50 inkjet printing machine on a flexible substrate. All components of the memory cells of a simple metal/active layer/metal structure were deposited via inkjet printing. The quality of the printed layers was first assessed by Nikon LABOPHOT-2 optical microscope, fitted with Nikon Camera DS-Fi1. Furthermore, an in-depth electrical characterisation of the fabricated memory cells was carried out using HP4140B picoammeter. Item Open Access3D fast convex-hull-based evolutionary multiobjective optimization algorithm(Elsevier, 2018-06) Zhao, Jiaqi; Jiao, Licheng; Liu, Fang; Fernandes, Vitor Basto; Yevseyeva, Iryna; Xia, Shixong; Emmerich, Michael T. M.The receiver operating characteristic (ROC) and detection error tradeoff (DET) curves have been widely used in the machine learning community to analyze the performance of classifiers. The area (or volume) under the convex hull has been used as a scalar indicator for the performance of a set of classifiers in ROC and DET space. Recently, 3D convex-hull-based evolutionary multiobjective optimization algorithm (3DCH-EMOA) has been proposed to maximize the volume of convex hull for binary classification combined with parsimony and three-way classification problems. However, 3DCH-EMOA revealed high consumption of computational resources due to redundant convex hull calculations and a frequent execution of nondominated sorting. In this paper, we introduce incremental convex hull calculation and a fast replacement for non-dominated sorting. While achieving the same high quality results, the computational effort of 3DCH-EMOA can be reduced by orders of magnitude. The average time complexity of 3DCH-EMOA in each generation is reduced from O ( n 2 log n ) to O ( n log n ) per iteration, where n is the population size. Six test function problems are used to test the performance of the newly proposed method, and the algorithms are compared to several state-of-the-art algorithms, including NSGA-III, RVEA, etc., which were not compared to 3DCH-EMOA before. Experimental results show that the new version of the algorithm (3DFCH-EMOA) can speed up 3DCH-EMOA for about 30 times for a typical population size of 300 without reducing the performance of the method. Besides, the proposed algorithm is applied for neural networks pruning, and several UCI datasets are used to test the performance. Item Open AccessA 3D GBSM for high-speed train communication systems under deep cutting scenarios(IEEE, International Workshop on High Mobility Wireless Communications (HMWC), 2015, 2015-12) Feng, Liu; Fan, Pingzhi; Wang, Cheng-Xiang; Ghazal, AmmarThis paper proposes a novel three-dimensional (3D) cylinder geometry-based stochastic model (GBSM) for non-isotropic multiple-input multiple-output (MIMO) Rice fading channels in high-speed train (HST) wireless communications under deep cutting scenarios. Using a validated approximation, the closed-form expression of the space-time correlation function (ST CF) of the proposed GBSM is obtained. Different from two-dimensional (2D) channel models, in the 3D GBSM the elevation angles and the height of the base station (BS) antenna relative to the mobile station (MS) one are introduced. The numerical results show the rationality of the approximation and how the arrangements of antennas affect the ST CF. Item Metadata only3D Model of partial discharge in defects with different sizes and positions in power cable for distribution and transmission networks(IET, 2020-10-14) Ragusa, Antonella; Sasse, Hugh; Duffy, AlistairThe knowledge of partial discharge (PD) phenomena inside electrical insulation of power cables is an important issue for assessing the insulation condition and its degradation state, obtaining information about the likelihood of failure. PDs cause signals to propagate along the cable, as noise phenomena, and contribute to the insulation degradation, culminating in a disruptive fault with the interruption of power supply. Therefore, PDs are considered the best ‘early warning’ indicators of insulation degradation and their modelling, with the development of on-line PDs location methods, are important topics to increase the networks’ electricity security. In this study, a three-dimensional (3D) model of PD events using the CST STUDIO® Dassault software is proposed. PDs inside air inclusions in epoxy-resin are analysed with different shapes, positions and sizes of the defect. The electric-field distribution is evaluated with the conduction current inside the void and the apparent charges induced on the electrode. The effectiveness of the model is validated by comparing the simulation results with other published experimental results. Finally, a description of a 3D–1D hybrid model useful to describe the propagation of PD signals in power networks is given. Item Open Access3D non-invasive inspection of the skin lesions by close-range and low-cost photogrammetric techniques(International Society for Stereology & Image Analysis, 2017) Orun, A.; Goodyer, E. N.; Smith, GeoffIn dermatology, one of the most common causes of skin abnormality is an unusual change in skin lesion structure which may exhibit very subtle physical deformation of its 3D shape. However the geometrical sensitivity of current cost-effective inspection and measurement methods may not be sufficient to detect such small progressive changes in skin lesion structure at micro-scale. Our proposed method could provide a low-cost, non-invasive solution by a compact system solution to overcome these shortcomings by using close-range photogrammetric imaging techniques to build a 3D surface model for a continuous observation of subtle changes in skin lesions and other features. Item Open Access3D printing of bone scaffolds with hybrid biomaterials(Elsevier, 2018-09-29) Bankole, I.; Oladapo, S.; Adeoye, A.O.M.; Zahedi, S. A.In this research, a novel hybrid material bone implant manufacturing through the integration of two materials using additive manufacturing (AM) technology is proposed. Biomimetic application can manufacture high strength biomechanical implants with optimised geometry and mass. The combination of polymers allows a significant leap in the development and production of a great diversity of components and applications of biomaterials. A novel hybrid scaffold with a poly lactic acid (PLA) matrix reinforced with carbohydrate particles (cHA) is analysed using digital surface software in the mass proportions of 100/0, 95/5, 90/10 and 80/20 for application in tissue and regenerative engineering, seeking a higher proposition strength of PLA. Filaments are used to fabricate scaffolds by 3D printing, using the fused deposition method. The frameworks are submitted to bioactivity tests, surface roughness evaluation, apparent porosity and mechanical analysis. Analysis of the microstructure of the composite particle evaluates the 3D surface luminance structure and the profile structure. Cross-sectional views of the specimens are extracted and analysed, and the surface roughness, waviness profile, and Gaussian filter of the structures are observed. In summary the structures are checked and analysed by SEM and EDS where possible, to observe the bioactive behaviour of the materials. The relationship between cHA content and roughness is shown to be proportional. The mechanical properties are shown to be affected by the reduced interaction between the PLA matrix and the cHA particles Item Metadata only3D Printing of Flexible Two Terminal Electronic Memory Devices(2017-12) Salaoru, Iulia; Maswoud, Salah; Paul, Shashi; Manjunatha, KrishnaRecent strategy in the electronics sector is to ascertain the ways to make cheap, flexible and environmentally friendly electronic devices. The 3D Inkjet printing technology is based on the Additive Manufacturing concept  and it is with no doubt capable of revolutionizing the whole system of manufacturing electronic devices including: material selection; design and fabrication steps and device configuration and architecture. 3D Inkjet printing technology (IJP) is one of the most promising technologies to reduce the harmful radiation/ heat generation and also achieve reduction in manufacturing cost. Here, we explore the potential of 3D – inkjet printing technology to provide an innovative approach for electronic devices in especially information storage elements by seeking to manufacture and characterize state-of-art fully inkjet printed two terminal electronic memory devices. In this work, an ink-jettable material was formulated, characterized and printed by a a piezoelectric Epson Sylus P50 Inkjet printing machine on a flexible substrate. The active printed layers were deposited into a functioning simple metal/insulator/metal structure. Firstly, from ink perspective, the main physical properties such as rheological behaviour; surface tension and wettability were investigated. Furthermore, an in-depth electrical characterization of the fabricated memory cells was carried out using HP4140B picoammeter and an HP4192A impedance analyser.  N.Hopkinson, R.Hague, P.Dickens, Rapid manufacturing; an industrial revolution for the digital age. West Sussex, UK, John Wiley and Sons; 2006  Iulia Salaoru, Zuoxin Zhou, Peter Morris, Gregory Gibbons, Inkjet printing of polyvinyl alcohol multilayers for addiive manufacturing applications, J.Appl.Polym.Sci., 133(25), 43572 (2016)  Ruth Cherrington, B.M.Wood, Iulia Salaoru, Vannessa Goodship, Digital printing of titanium dioxide for dye sensitized solar cells, JoVE, e53963, (2016)  Iulia Salaoru, Zuoxin Zhou, Peter Morris, Gregory J. Gibbons, Inkjet-printed Polyvinyl Alcohol Multilayers, JoVE,123, e55093-e55093, (2017). Item Open Access3D printing of PEEK and its composite to increase biointerfaces as a biomedical material-A review(Elsevier, 2021-03-26) Oladapo, B.I.; Zahedi, S. A.; Ismail, S.O.; Omigbodun, F.T.Poly ether-ether-ketone (PEEK) is a polymer with better lignin biocompatibility than other polymers. It is good for biomedical engineering applications. This research summarises the outcomes of an evaluation conducted on PEEK material composites, such as cellular calcium hydroxyapatite (CHAp) for medical applications. Prospects of PEEK for medical implant are highlighted. Critical analysis and review on 3D printing of PEEK, CHAp and their biological macromolecular behaviours are presented. An electronic search was carried out on Scupos database, Google search and peer-reviewed papers published in the last ten years. Because of the extraordinary strength and biological behaviours of PEEK and its composite of CHAp, 3D-printed PEEK has several biomedical applications, and its biological macromolecular behaviour leads to health sustainability. This work highlights its biological macromolecular behaviours as a bone implant material and the optimum 3D printing process for PEEK and CHAp for medical applications. The current problems with printing PEEK and CHAp are investigated along with their possible uses. Possible solutions to improve the 3D printability of PEEK and CHAp are explained based on scientific mechanisms. This detailed report stands to benefit both scientific community and medical industry to enhance 3D printing concepts for PEEK and CHAp. Item Open Access3D printing of PEEK-based medical devices(Infinite Science Publishing, 2019-09-12) Tafaoli-Masoule, Mojtaba; Shakeri, Mohsen; Seitz, Herman; Vaezi, Mohammad; Zahedi, S. A.Polyether-ether-ketone (PEEK) is an excellent thermoplastic alternative to metallic biomaterials which is used for loadbearing applications due to its high strength and stiffness, and biocompatibility with no cytotoxic effects. However, a potential clinical concern is that PEEK alone is not bioactive enough, and thus has limited fixation to bone. To overcome this problem, bioactive materials and/or porosity are incorporated into PEEK medical devices. The latest developments in these two strategies are presented. in this paper. Bioactive PEEK/hydroxyapatite (HA) prepared by integration of 3D printing and compression molding is presented in this paper. In addition, nozzle and build plate temperatures for 3D printing of porous PEEK were optimized using genetic algorithm (GA) to achieve the highest mechanical strength for load bearing applications such as spinal fusion cages. Item Open Access3D printing of PEEK–cHAp scaffold for medical bone implant(Springer, 2020-10-21) Oladapo, B.I.; Zahedi, S. A.; Ismail, Sikiru O.; Omigbodun, Francis T.; Bowoto, Oluwole K.; Olawumi, Mattew A.; Muhammad, Musa A.The major drawback associated with PEEK implants is their biologically inert surface, which caused unsatisfactory cellular response and poor adhesion between the implants and surrounding soft tissues against proper bone growth. In this study, polyetheretherketone (PEEK) was incorporated with calcium hydroxyapatite (cHAp) to fabricate a PEEK–cHAp biocomposite, using the fused deposition modeling (FDM) method and a surface treatment strategy to create microporous architectures onto the filaments of PEEK lattice scaffold. Also, nanostructure and morphological tests of the PEEK–cHAp biocomposite were modeled and analyzed on the FDM-printed PEEK–cHAp biocomposite sample to evaluate its mechanical and thermal strengths as well as in vitro cytotoxicity via a scanning electron microscope (SEM). A technique was used innovatively to create and investigate the porous nanostructure of the PEEK with controlled pore size and distribution to promote cell penetration and biological integration of the PEEK–cHAp into the tissue. In vivo tests demonstrated that the surface-treated micropores facilitated the adhesion of newly regenerated soft tissues to form tight implant–tissue interfacial bonding between the cHAp and PEEK. The results of the cell culture depicted that PEEK–cHAp exhibited better cell proliferation attachment spreading and higher alkaline phosphatase activity than PEEK alone. Apatite islands formed on the PEEK–cHAp composite after immersion in simulated body fluid of Dulbecco's modified Eagle medium (DMEM) for 14 days and grew continuously with more or extended periods. The microstructure treatment of the crystallinity of PEEK was comparatively and significantly different from the PEEK–cHAp sample, indicating a better treatment of PEEK–cHAp. The in vitro results obtained from the PEEK–cHAp biocomposite material showed its biodegradability and performance suitability for bone implants. This study has potential applications in the field of biomedical engineering to strengthen the conceptual knowledge of FDM and medical implants fabricated from PEEK–cHAp biocomposite materials. Item Open Access3D printing of surface characterisation and finite element analysis improvement of PEEK-HAP-GO in bone implant(Springer, 2019-11-28) Chong, Seng; Malachi, Idowu; Oladapo, B.I.; Zahedi, S. A.; Omigbodun, F.T.Research and development of polyetheretherketone (PEEK) composites with high thermal conductivities and ideal thermal stabilities have become one of the hot topics in composites. However, not all PEEK composites have the necessary characteristics adequate fracture toughness to resist forces and crack propagation, with an improved mechanical and structural properties. This research evaluates a novel computational surface characterisation and finite element analysis (FEA) of polyetheretherketone and hydroxyapatite graphene oxide (PEEK-HAP-GO) in the process of 3D printing to improve fracture toughness to resist forces and crack propagation. It also focuses on increasing the hydrophilicity, surface roughness, and coating osteoconductive of PEEK-HAP-GO for the bone implant. Compression and tensile tests were performed to investigate the mechanical properties of the PEEK-HAP-GO structure. The addition of calcium phosphate and the incorporation of porosity in PEEK-HAP-GO has been identified as an effective way to improve the osseointegration of bone-implant interfaces of PEEK-HAP-GO. The further analytical structure of the particle was performed, evaluating the surface luminance structure and the profile structure of composite material in 3D printing, analysing the profile curve of the nanostructure from the scanning electron microscope (SEM). The results of the uniaxial compression tests in new PEEK-HAP-GO biodegradable materials show good compressive strength suitable for loading applications. It shows melt-blending with bioactive nanoparticles can be used to produce bioactive nanocomposites like HAP-GO and is used to modify the surface structure of PEEK implants in order to make it more bioactive.