• GPU acceleration of liver enhancement for tumor segmentation 

      Naseem, Rabia; Cheikh, Faouzi Alaya (Peer reviewed; Journal article, 2019)
      Background and objective: Medical image segmentation plays a vital role in medical image analysis. There are many algorithms developed for medical image segmentation which are based on edge or region characteristics. These ...
    • GPU Computing with Python: Performance, Energy Efficiency and Usability 

      Holm, Håvard Heitlo; Brodtkorb, André R.; Sætra, Martin Lilleeng (Journal article; Peer reviewed, 2020)
      In this work, we examine the performance, energy efficiency, and usability when using Python for developing high-performance computing codes running on the graphics processing unit (GPU). We investigate the portability of ...
    • GPU-Accelerated Visualization of Scattered Point Data 

      Falch, Thomas Løfsgaard; Fløystad, Jostein Bø; Breiby, Dag Werner; Elster, Anne C. (Journal article; Peer reviewed, 2013)
      As data sets continue to grow in size, visualization has become a vitally important tool for extracting meaningful knowledge. Scattered point data, which are unordered sets of point coordinates with associated measured ...
    • GPU-FAST-PROCLUS: A Fast GPU-parallelized Approach to Projected Clustering 

      Jørgensen, Jakob Rødagaard; Scheel, Katrine; Assent, Ira; Ram, Ajeet; Elster, Anne C. (Journal article, 2022)
      Projected and subspace clustering aim to find groups of similar objects within a subspace of the full-dimensional space. Where subspace clustering tries to identify clusters in all possible subspaces, projected clustering ...
    • GRACE-derived ice-mass loss spread over Greenland 

      Nahavandchi, Hossein; Joodaki, Gholamreza; Schwartz, Vegar (Peer reviewed; Journal article, 2015)
      The Gravity Recovery and Climate Experiment (GRACE) monthly satellite data is used to examine the extent and magnitude of Greenland ice sheet melting for 2003-2012. We show that the well documented Greenland ice mass loss ...
    • Graded-material design based on phase-field and topology optimization 

      Carraturo, Massimo; Rocca, Elisabetta; Bonetti, Elena; Hömberg, Dietmar Josef; Reali, Alessandro; Auricchio, Ferdinando (Journal article; Peer reviewed, 2019)
      In the present work we introduce a novel graded-material design based on phase-field and topology optimization. The main novelty of this work comes from the introduction of an additional phase-field variable in the classical ...
    • Gradient Based Design Optimization of a Radial Inflow Turbine 

      Hagen, Brede; Cavo, Matteo; Andresen, Trond; Nekså, Petter (Chapter, 2020)
      The expander is one of the key components of an ORC as the cycle efficiency strongly depends on the expander efficiency. This paper presents a method for design optimization of a radial inflow turbine (RIT) using a mean-line ...
    • Gradient based optimization of Permanent Magnet generator design for a tidal turbine 

      Røkke, Astrid (Chapter, 2014)
      An optimization of an analytical problem with nine variables is executed to find the optimal Permanent Magnet(PM) generator for a tidal turbine. A gradient based solver is used to find the minimum cost of active materials ...
    • The gradient flow of infinity-harmonic potentials 

      Lindqvist, Peter; Lindgren, Erik Kristian (Peer reviewed; Journal article, 2021)
      We study the streamlines of ∞-harmonic functions in planar convex rings. We include convex polygons. The points where streamlines can meet are characterized: they lie on certain curves. The gradient has constant norm along ...
    • Gradient in defect density of ZnO nanorods grown by cathodic delamination, a corrosion process, leads to end-specific luminescence 

      Iqbal, Danish; Sarfraz, Adnan; Erbe, Andreas (Journal article; Peer reviewed, 2018)
      ZnO nanorods were grown on a zinc substrate via cathodic delamination of a polymer coating, a tailored corrosion process, at room temperature. A comparison between in situ Raman spectra and post mortem cross sectional ...
    • Gradient-based constrained well placement optimization 

      Volkov, Oleg; Bellout, Mathias (Journal article; Peer reviewed, 2018)
      A novel well placement gradient approximation methodology is developed based on performing finite difference approximations of augmented Lagrangian derivatives within the adjoint formulation. The methodology is efficient ...
    • Gradient-Based Design Optimization of Fully-Flexible Floating Wind Turbines Using Modal Analysis 

      Rohrer, Peter Joshua; Bachynski-Polic, Erin Elizabeth; Hegseth, John Marius (Chapter, 2023)
      A variety of substructure concepts for floating offshore wind have been developed. Design optimization can be used to efficiently explore this design space and guide further work. Previous design optimization studies have ...
    • Gradient-based Production Optimization with Economic Constraints 

      Volkov, Oleg; Bellout, Mathias Chakib Rodriguez (Chapter, 2016)
      This work develops an analytical framework to study the effects of enforcing simulator-based constraints while performing gradient-based production optimization. In particular, this work studies how the enforcement of this ...
    • Gradient-based production optimization with simulation-based economic constraints 

      Volkov, Oleg; Bellout, Mathias (Journal article; Peer reviewed, 2017)
      In reservoir management, production optimization is performed using gradient-based algorithms that commonly rely on an adjoint formulation to efficiently compute control gradients. Often, however, economic constraints are ...
    • Gradient-Descent Adaptive Filtering Using Gradient Adaptive Step-Size 

      Talebi, Sayedpouria; Darvishi, Hossein; Werner, Stefan; Salvo Rossi, Pierluigi (Journal article; Peer reviewed, 2022)
      At the heart of most adaptive filtering techniques lies an iterative statistical optimisation process. These techniques typically depend on adaptation gains, which are scalar parameters that must reside within a region ...
    • Gradients, Species Richness and Communities in Eastern Finnish Sloping Fens 

      Laitinen, Jarmo; Oksanen, Jari; Kaakinen, Eero; Peterka, Tomáš; Moen, Asbjørn; Tahvanainen, Teemu (Journal article; Peer reviewed, 2021)
      In Scandinavia, three gradients (poor–rich, water table, margin–expanse) are considered in vegetation classification of mires. We re-analysed the data of Paavo Havas from 1961 on sloping fens in eastern Finland using NMDS ...
    • The Gradual Normalization of Behaviors Which Might Challenge Ethical and Professional Standards in Two British Elite Sports Organizations 

      Feddersen, Niels Boysen; Phelan, Simon Edward (Peer reviewed; Journal article, 2021)
      We examined how two elite British sports organizations began accepting behaviors that might challenge ethical and professional standards. The data for the current paper came from two separate ethnographic studies. We used ...
    • Gradual Reduction in Sodium Content in Cooked Ham, with Corresponding Change in Sensorial Properties Measured by Sensory Evaluation and a Multimodal Machine Vision System 

      Greiff, Kirsti; Mathiassen, John Reidar Bartle; Misimi, Ekrem; Hersleth, Margrethe; Aursand, Ida Grong (Journal article; Peer reviewed, 2015)
      The European diet today generally contains too much sodium (Na+). A partial substitution of NaCl by KCl has shown to be a promising method for reducing sodium content. The aim of this work was to investigate the sensorial ...
    • GRADUATE EMPLOYABILITY SKILLS DEVELOPMENT THROUGH REFLECTION AND SELF-ASSESSMENT USING A MOBILE APP 

      Iqbal, Maria; Fredheim, Lars Jørgen; Olstad, Hege Annette; Abbas, Aisha; Petersen, Sobah Abbas (Chapter, 2022)
      As university students' journey through their studies, their minds are fixed on a common end goal, that of graduating with flying colours and landing their dream job. They aim for achieving the top grades and focus on their ...
    • Graduates of venture creation programs – where do they apply their entrepreneurial competencies? 

      Alsos, Gry Agnete; Hägg, Gustav; Lundqvist, Mats; Politis, Diamanto; Stockhaus, Martin; Williams-Middleton, Karen; Djupdal, Kari (Peer reviewed; Journal article, 2022)
      The assessment of entrepreneurship education outcomes should move beyond a focus on firm creation and associated economic impact to consider a more nuanced view that pays attention to graduates and their entrepreneurial ...