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Browsing Greinar- HÍ by Department "Iðnaðarverkfræði-, vélaverkfræði- og tölvunarfræðideild (HÍ)"

Browsing Greinar- HÍ by Department "Iðnaðarverkfræði-, vélaverkfræði- og tölvunarfræðideild (HÍ)"

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  • Hvannberg, Ebba Thora; Law, Effie L.-C.; Halldórsdóttir, Gyða (Informa UK Limited, 2018-03-29)
    Consolidating usability problems (UPs) from problem lists from several users can be a cognitively demanding task for evaluators. It has been suggested that collaboration between evaluators can help this process. In an attempt to learn how evaluators ...
  • Vilbergsdóttir, Sigurbjörg Gróa; Hvannberg, Ebba Thora; Law, Effie Lai-Chong (Elsevier BV, 2014-01)
    The aim of this study was to evaluate the Classification of Usability Problems (CUP) scheme. The goal of CUP is to classify usability problems further to give user interface developers better feedback to improve their understanding of usability problems, ...
  • Spagnol, Simone; Hoffmann, Rebekka; Herrera Martínez, Marcelo; Unnthorsson, Runar (Elsevier BV, 2018-07)
    Translating visual representations of real environments into auditory feedback is one of the key challenges in the design of an electronic travel aid for visually impaired persons. Although the solutions currently available in the literature can lead ...
  • Yi, Zhiqian; Su, Yixi; Xu, Maonian; Bergmann, Andreas; Ingþórsson, Sævar; Rolfsson, Óttar; Salehi-Ashtiani, Kourosh; Brynjolfsson, Sigurdur; Fu, Weiqi (MDPI AG, 2018-08-04)
    Diatoms are a major group of unicellular algae that are rich in lipids and carotenoids. However, sustained research efforts are needed to improve the strain performance for high product yields towards commercialization. In this study, we generated a ...
  • Spagnol, Simone; Wersényi, György; Bujacz, Michał; Bălan, Oana; Herrera Martínez, Marcelo; Moldoveanu, Alin; Unnthorsson, Runar (Hindawi Limited, 2018)
    Electronic travel aids (ETAs) have been in focus since technology allowed designing relatively small, light, and mobile devices for assisting the visually impaired. Since visually impaired persons rely on spatial audio cues as their primary sense of ...
  • Kristjánsson, Árni; Moldoveanu, Alin; Jóhannesson, Ómar I.; Balan, Oana; Spagnol, Simone; Valgeirsdóttir, Vigdís Vala; Unnthorsson, Runar (IOS Press, 2016-09-21)
    An exciting possibility for compensating for loss of sensory function is to augment deficient senses by conveying missing information through an intact sense. Here we present an overview of techniques that have been developed for sensory substitution ...
  • Hyytia, Esa; Righter, Rhonda; Bilenne, Olivier; Wu, Xiaohu (Elsevier BV, 2017-09)
    We study the M/D/1 queue when jobs have firm deadlines for waiting (or sojourn) time. If a deadline is not met, a job-specific deadline violation cost is incurred. We derive explicit value functions for this M/D/1 queue that enable the development of ...
  • Spagnol, Simone; Hoffmann, Rebekka; Kristjánsson, Árni; Avanzini, Federico (Acoustical Society of America (ASA), 2017-04)
    Stimulus order has been reported to affect perceived loudness. This letter investigates how temporal order affects distance discrimination of receding and approaching pairs of sound sources rendered binaurally in the anechoic near-field. Individual ...
  • Memon, Shahbaz; Riedel, Morris; Memon, Riedel,; Koeritz, Chris; Grimshaw, Andrew; Neukirchen, Helmut (West University of Timisoara, 2016-05-01)
    Emerging challenges for scientific communities are to efficiently process big data obtained by experimentation and computational simulations. Supercomputing architectures are available to support scalable and high performant processing environment, ...
  • Book, Matthias; Riedel, Morris; Neukirchen, Helmut; Götz, Markus (ACM Press, 2017-10)
    The design, development and deployment of scientific computing applications can be quite complex as they require scientific, High-Performance Computing (HPC), and software engineering expertise. Often, HPC applications are however developed by end users ...
  • Gudmundsson, Magnus Tumi; Jónsdóttir, Kristín; Hooper, Andrew; Holohan, Eoghan P.; Halldorsson, Saemundur; Ofeigsson, Benedikt Gunnar; Cesca, Simone; Vogfjörð, Kristín S.; Sigmundsson, Freysteinn; Högnadóttir, Thórdís; Einarsson, Páll; Sigmarsson, Olgeir; Jarosch, Alexander H.; Jónasson, Kristján; Magnússon, Eyjólfur; Hreinsdóttir, Sigrún; Bagnardi, Marco; Parks, Michelle M.; hjorleifsdottir, vala; Pálsson, Finnur; Walter, Thomas R.; Schöpfer, Martin P. J.; Heimann, Sebastian; Reynolds, Hannah Iona; Dumont, Stéphanie; Bali, Eniko; Guðfinnsson, Guðmundur Heiðar; Dahm, Torsten; Roberts, Matthew J.; Hensch, Martin; Belart, Joaquín M. C.; Spaans, Karsten; Jakobsson, Sigurður; Guðmundsson, Gunnar B.; Fridriksdóttir, Hildur María; Drouin, Vincent; Dürig, Tobias; Adalgeirsdottir, Gudfinna; Riishuus, Morten; Pedersen, Gro; van Boeckel, Tayo; Oddsson, Björn; Pfeffer, Melissa A.; Barsotti, Sara; Bergsson, Baldur; Donovan, Amy; Burton, Mike R.; Aiuppa, Alessandro (American Association for the Advancement of Science (AAAS), 2016-07-14)
    Large volcanic eruptions on Earth commonly occur with a collapse of the roof of a crustal magma reservoir, forming a caldera. Only a few such collapses occur per century, and the lack of detailed observations has obscured insight into the mechanical ...
  • Shimomura, Yayoi; Hvannberg, Ebba Thora; Hafsteinsson, Hjálmtýr (Springer Nature, 2012-03-17)
    Research has been conducted on how to aid blind peoples’ perceptions and cognition of scientific data and, specifically, on how to strengthen their background in mathematics as a means of accomplishing this goal. In search of alternate modes to vision, ...
  • Atlason, Reynir Smari; Oddsson, Gudmundur V.; Unnthorsson, Runar (Springer Nature, 2017-09-07)
    Heat pumps use the temperature difference between inside and outside areas to modify a refrigerant, either for heating or cooling. Doing so can lower the need for external heating energy for a household to some extent. The eventual impact depends on ...
  • Hvannberg, Ebba Thora (Springer Nature, 2013-11-13)
    With the advances in information technology and its increasing impact on humans and society, there has been an expanding need to spread knowledge from domain to domain. This need is not least in the area of human–computer interaction, which includes a ...
  • Helgadottir, Asdis; Ng, Yen Ting; Min, Chohong; Gibou, Frédéric (Elsevier BV, 2015-10)
    We consider the Poisson equation with mixed Dirichlet, Neumann and Robin boundary conditions on irregular domains. We describe a straightforward and efficient approach for imposing the mixed boundary conditions using a hybrid finite-volume/finite-difference ...
  • Balan, Oana; Moldoveanu, Alin; Moldoveanu, Florica; Nagy, Hunor; Wersenyi, Gyorgy; Unnthorsson, Runar (American Foundation for the Blind., 2017-03)
    As the number of people with visual impairments (that is, those who are blind or have low vision) is continuously increasing, rehabilitation and engineering researchers have identified the need to design sensorysubstitution devices that would offer ...
  • Pimentel, Harold; Sturmfels, Pascal; Bray, Nicolas; Melsted, Páll; Pachter, Lior (Springer Nature, 2016-12)
    Increased emphasis on reproducibility of published research in the last few years has led to the large-scale archiving of sequencing data. While this data can, in theory, be used to reproduce results in papers, it is difficult to use in practice. We ...
  • Hoffmann, Rebekka; Valgeirsdóttir, Vigdís Vala; Jóhannesson, Ómar I.; Unnthorsson, Runar; Kristjánsson, Árni (Springer Nature, 2018-10-06)
    Vibrotactile displays can compensate for the loss of sensory function of people with permanent or temporary deficiencies in vision, hearing, or balance, and can augment the immersive experience in virtual environments for entertainment, or professional ...
  • Helgadottir, Asdis; Lalot, Sylvain; Beaubert, Francois; Pálsson, Halldór (MDPI AG, 2018-10-10)
    Swirling flow has been shown to increase heat transfer in heat exchangers. However, producing swirl while not presenting a severe pressure drop can be a challenge. In this paper, a desired shape of guidance blades for laminar swirl flow is determined ...
  • Helgadottir, Asdis; Guittet, Arthur; Gibou, Frédéric (Hindawi Limited, 2018-10-17)
    We analyze the accuracy of two numerical methods for the variable coefficient Poisson equation with discontinuities at an irregular interface. Solving the Poisson equation with discontinuities at an irregular interface is an essential part of solving ...