Blar i Publikasjoner fra CRIStin - NTNU på tittel
Viser treff 2073-2092 av 37177
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Analysis on the relationship between layout and consumption of face cutters on hard rock tunnel boring machines (TBMs)
(Journal article; Peer reviewed, 2018)The consumption of TBM disc cutters is influenced by the ground conditions (e.g. intact rock properties, rock mass properties, etc.), the TBM boring parameters (e.g. thrust, RPM, penetration, etc.) and the cutterhead design ... -
Analysis, occurrence and removal efficiencies of organophosphate flame retardants (OPFRs) in sludge undergoing anaerobic digestion followed by diverse thermal treatments
(Peer reviewed; Journal article, 2023)Organophosphate flame retardants (OPFRs) are a complex group of contaminants to deal with in sewage sludge, as currently there is a lack of robust analytical methods to measure them and management strategies to remove them. ... -
Analytical and FEM Calculation of Electrical Parameters of Carbon Steel Pipe in DEH Systems
(Chapter, 2018)In Direct Electrical Heating (DEH) systems, the pipeline of subsea oil productions conducts a large AC current to generate heat. To further improve the effectiveness of the DEH, higher operating frequency is preferable. ... -
Analytical and numerical approaches to modelling severe plastic deformation
(Journal article; Peer reviewed, 2018)Severe plastic deformation (SPD) has established itself as a potent means of producing bulk ultrafine grained and nanostructured materials. It has given rise to burgeoning research that has become an integral part of the ... -
Analytical and numerical solutions of radially symmetric aquifer thermal energy storage problems
(Peer reviewed; Journal article, 2023)Aquifer thermal energy storage (ATES) systems offer reduced energy costs, lower carbon emissions, and increased energy resilience. The feasibility, however, depends on several factors and usually require optimization. We ... -
Analytical approach for adequacy assessment of cyber–physical multi-microgrid distribution systems with distributed generation
(Peer reviewed; Journal article, 2022)In recent years, there has been a marked increase in the deployment of information and communication technologies (ICTs) in power systems. ICTs impart a cyber-physical nature to power systems, and though they improve the ... -
An analytical approach to model Structure–Soil–Structure Interaction (SSSI) of arbitrarily distributed buildings under SH waves
(Peer reviewed; Journal article, 2023)In this work, a simplified analytical framework based on the multiple scattering theory is proposed to model the structure–soil–structure interaction of buildings excited by antiplane shear waves. To this purpose, each ... -
Analytical approximate capillary surfaces
(Journal article, 2018)Analytical approaches to hydrostatic capillary (meniscus) problem in infinite horizontal channel and axisymmetric container are developed. For these geometric cases, finding the capillary menisci reduces to freeboundary ... -
Analytical Calculation Model for Predicting Cracking Behavior of Reinforced Concrete Ties
(Journal article; Peer reviewed, 2020)This paper formulates an analytical calculation model for predicting the cracking behavior of reinforced concrete ties to provide more consistent crack width calculation methods for large-scale concrete structures in which ... -
Analytical Calculation of Yoke Flux Patterns in Fractional-Slot Permanent Magnet Machines
(Journal article; Peer reviewed, 2017)Machine design problems are often solved under the assumption of no-load when calculating iron flux densities. However, it is particularly important to account for the fluxes from the stator currents, the armature reaction, ... -
Analytical design considerations for MVDC solid-state circuit breakers
(Chapter, 2019)This paper investigates the design principles of a solid-state circuit breaker (SS CB) for medium voltage direct current (MVDC) grids. The emphasis is given on the design of the required active and passive components that ... -
An Analytical Framework for Resilience Exemplified with a Real Time Operational Center
(Journal article, 2020)Integrated operations (IO) is an ongoing change process in the oil and gas industry. New technological opportunities enable working in new ways that involve an integration of onshore and offshore personnel. This paper ... -
Analytical Frameworks, Impact Categories, Indicators and Performance Evaluation
(Chapter, 2023)This chapter introduces the background for indicators to be used to monitor and communicate the environmental performance of different systems and activities. They are anchored in the DPSIR-analytical framework which stands ... -
Analytical gradient-based optimization of offshore wind turbine substructures under fatigue and extreme loads
(Journal article; Peer reviewed, 2016)Design optimization of offshore wind turbine support structures is an expensive task due to the highly-constrained, non-convex and non-linear nature of the design problem. A good depth of detail in the problem formulation ... -
Analytical Iron Loss Evaluation in the Stator Yoke of Slotless Surface-Mounted PM Machines
(Peer reviewed; Journal article, 2022)One of the attractive benefits of slotless machines is low losses at high speeds, which could be emphasized by a careful stator core loss assessment, potentially available already at the pre-design stage. Unfortunately, ... -
Analytical Loss Equations for Three Level Active Neutral Point Clamped Converters
(Chapter, 2020)This paper presents the analytical expressions that can be used to calculate conduction and switching losses in each devices of an Active Neutral Point Clamped Converter. These expressions can be used to determine the ... -
An analytical method for evaluating and visualizing embodied carbon emissions of buildings
(Peer reviewed; Journal article, 2020)Greenhouse gas emissions associated with buildings constitute a large part of global emissions, where building materials and associated processes make up a significant fraction. These emissions are complicated to evaluate ... -
An Analytical Model for Detailed Transient Fault Analysis of Doubly-Fed Induction Machines
(Chapter, 2020)This paper presents an exact analytical solution to the two-phase and three-phase short-circuit events of the doubly-fed induction machine (DFIM). The contribution is intended to strengthen the predictability of DFIMs under ... -
An Analytical Model for Sparse Network Codes: Field Size Considerations
(Peer reviewed; Journal article, 2020)One of the by-products of Sparse Network Coding (SNC) is the ability to perform partial decoding, i.e., decoding some original packets prior to collecting all needed coded packets to decode the entire coded data. Due to ... -
Analytical modeling of sub-surface porous reservoir compaction
(Journal article; Peer reviewed, 2018)Fluid extraction has led to compaction, land subsidence, flooding and even earthquakes many places around the world. Although rare, the environmental costs could be overwhelming. Once compaction has been identified, possible ...