Browsing NTNU Open by Title
Now showing items 27125-27144 of 100789
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Efficient Production of Clean Power and Hydrogen Through Synergistic Integration of Chemical Looping Combustion and Reforming
(Peer reviewed; Journal article, 2020)Chemical looping combustion (CLC) technology generates power while capturing CO2 inherently with no direct energy penalty. However, previous studies have shown significant energy penalties due to low turbine inlet temperature ... -
An Efficient Production Transfer Process
(Doctoral theses at NTNU;2020:393, Doctoral thesis, 2020) -
Efficient Query Processing in Distributed Search Engines
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:22, Doctoral thesis, 2013)Web search engines have to deal with a rapidly increasing amount of information, high query loads and tight performance constraints. The success of a search engine depends on the speed with which it answers queries ... -
Efficient R744 technology for supermarket heating, cooling and refrigeration - a theoretical assessment of energy advantages in various Spanish cities
(Chapter, 2018)Various appealing expedients aimed at enhancing the energy efficiency of transcritical CO2 (R744) supermarket refrigerating systems have been recently developed. The concurrent adoption of these could lead such hydrofluorocarbon ... -
Efficient Ray Tracing of Sparse Voxel Octrees on an FPGA
(Master thesis, 2012)Ray tracing of sparse voxel octrees is a method of rendering images of 3D models, which could soon become practical for use in real time applications. This is desirable as ray tracing can produce very realistic visualizations, ... -
Efficient reordered nonlinear Gauss–Seidel solvers with higher order for black-oil models
(Journal article; Peer reviewed, 2019)The fully implicit method is the most commonly used approach to solve black-oil problems in reservoir simulation. The method requires repeated linearization of large nonlinear systems and produces ill-conditioned linear ... -
Efficient representation of data in intrusion detection systems
(Master thesis, 2021)Bedrifter er veldig avhengige av deres IT-systemer, som kan være store og komplekse å sikre. Nettverks-deteksjonssystemer (NIDS) brukes ofte til å overvåke sentrale punkter i nettverket og varsle administratorer når et ... -
Efficient Response Simulation Strategies for Jacket-based Offshore Wind Turbines - An integrated approach combining model reduction and nonlinear irregular wave theory
(Master thesis, 2014)The offshore wind industry has been growing exponentially over the last two decades, thereby establishing itself as one of the most promising alternative energy sources. Technological developments are required to reach ... -
Efficient Robots vs. Social Beings: A sociotechnical study on Korean café-culture and novel technology in service.
(Master thesis, 2022)Sammendrag: «hvordan roboter brukes i sør-Koreanske kaféer og hvorfor?». I denne oppgaven undersøker jeg dette spørsmålet i en kvalitativ studie på Koreansk kafé kultur, ved å se på hvordan forskjellige komponenter er ... -
Efficient rotor modelling for real-time hybrid testing
(Master thesis, 2017)Small-scale model tests in wave basins are important tools for validating numerical tools, evaluating system performance, and studying physical phenomena related to floating wind turbines. Hydrodynamic tests generally ... -
Efficient routing and reconfiguration in virtualized HPC environments with vSwitch-enabled lossless networks
(Journal article; Peer reviewed, 2019)To meet the demands of communication‐intensive workloads in the cloud, virtual machines (VMs) should utilize low overhead network communication paradigms. In general, such paradigms enable VMs to directly communicate with ... -
Efficient Sample Reusage in Path Space for Real-Time Light Transport
(Master thesis, 2021)I denne oppgaven undersøker vi ulike eksisterende løsninger for sanntidssimulering av global belysning. Nærmere bestemt, ser vi på problemstillingen rundt det å beregne mengden av direkte belysning i virtuelle scener med ... -
Efficient Semantic Similarity Search over Spatio-textual Data
(Chapter, 2023)In this paper, we address the problem of semantic similarity search over spatio-textual data. In contrast with most existing works on spatial-keyword search that rely on exact matching of query keywords to textual ... -
Efficient Solvers for Field-Scale Simulation of Flow and Transport in Porous Media
(Doctoral theses at NTNU;2019:374, Doctoral thesis, 2019)The first part of the thesis serves as an introduction to modelling of flow and transport in porous media from the perspective of reservoir simulation. We discuss generation of computational grids and discretization ... -
Efficient Space Domaine Method of Moments for Large Arbitrary Scatterers in Planar Stratified Media
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:100, Doctoral thesis, 2004)Keywords : Conjugate gradient fast Fourier transform (CG-FFT), Discrete complex image method (DCIM), Electric field integral equation (EFIE), Frequency selective surfaces (FSS), Generalized pencil-of-functions (GPOF), ... -
Efficient spatial designs using Hausdorff distances and Bayesian optimization
(Peer reviewed; Journal article, 2021)An iterative Bayesian optimization technique is presented to find spatial designs of data that carry much information. We use the decision theoretic notion of value of information as the design criterion. Gaussian process ... -
Efficient Spatial Search using Memory Resident R-trees
(Master thesis, 2017)This thesis investigates the performance of memory resident spatial search, focusing on the R-tree. The characteristics of modern computer architectures are first visited to understand how they have changed since the ... -
Efficient spatio-interval join
(Master thesis, 2018)This thesis studies existing techniques for both spatial join and interval join. Us- ing existing methods and algorithms for join operations two new algorithms for spatio-interval join is developed. Parallelization techniques ... -
Efficient split-step schemes for fluid–structure interaction involving incompressible generalised Newtonian flows
(Peer reviewed; Journal article, 2022)Blood flow, dam or ship construction and numerous other problems in biomedical and general engineering involve incompressible flows interacting with elastic structures. Such interactions heavily influence the deformation ... -
Efficient storage of heterogeneous geospatial data in spatial databases
(Journal article; Peer reviewed, 2019)The no-schema approach of NoSQL document stores is a tempting solution for importing heterogenous geospatial data to a spatial database. However, this approach means sacrificing the benefits of RDBMSes, such as existing ...