Browsing Publikasjoner fra CRIStin - NTNU by Title
Now showing items 15152-15171 of 37650
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Gradient Based Design Optimization of a Radial Inflow Turbine
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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?
(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 ... -
Graft fixation influences revision risk after ACL reconstruction with hamstring tendon autografts : A study of 38,666 patients from the Scandinavian knee ligament registries 2004–2011
(Journal article; Peer reviewed, 2017)Background and purpose — A large number of fixation methods of hamstring tendon autograft (HT) are available for anterior cruciate ligament reconstruction (ACLR). Some studies report an association between fixation method ... -
Grain boundary effect on lifetime in high performance multicrystalline silicon during solar cell processing
(Journal article; Peer reviewed, 2016)High performance multicrystalline silicon wafers used in solar cell processing have been investigated with focus on quantification of the grain boundary effect on lifetime. The lifetime of a set of 16 wafers from different ... -
Grain boundary segregation in Pd-Cu-Ag alloys for high permeability hydrogen separation membranes
(Journal article; Peer reviewed, 2018)Dense metal membranes that are based on palladium (Pd) are promising for hydrogen separation and production due to their high selectivity and permeability. Optimization of alloy composition has normally focused on bulk ... -
Grain boundary structures and their correlation with intergranular corrosion in an extruded Al-Mg-Si-Cu alloy
(Peer reviewed; Journal article, 2020)A detailed analysis of grain boundaries in a highly textured Al-Mg-Si-Cu alloy is presented in this work. Electron backscatter diffraction demonstrates the presence of three main categories of grain boundaries in addition ... -
Grain refinement of aluminium welds by Ti, TiB2, and TiC filler wire inoculation
(Peer reviewed; Journal article, 2023)A fine-grained fusion zone characterises a tough aluminium weld. To improve the solidification characteristics and refine the grains in aluminium welding, different inoculation particle combinations were introduced to the ... -
Grain Refinement of Commercial EC Grade 1370 Aluminium Alloy for Electrical Applications
(Journal article; Peer reviewed, 2018)The purpose of the present study was to investigate the effect of different grain refiners’ additions on structure and electrical conductivity of commercially electrically conductive (EC) grade 1370 aluminium alloy. A ...