Blar i NTNU Open på tittel
Viser treff 27488-27507 av 100440
-
Electrokinetics Application in Concrete and Well Construction
(Chapter, 2020)Electrically induced or coupled transport processes including electrophoresis, electroosmosis and electromigration in solutions and porous media under an external electric field have been extensively studied and employed ... -
Electroless Production of Fertilizer (Struvite) and Hydrogen from Synthetic Agricultural Wastewaters
(Peer reviewed; Journal article, 2020)The drive toward sustainable phosphorus (P) recovery from agricultural and municipal wastewater streams has intensified. However, combining P recovery with energy conservation is perhaps one of the greatest challenges of ... -
Electrolysis as a flexibility resource on energy islands: The case of the North Sea
(Peer reviewed; Journal article, 2023)Energy islands are meant to facilitate offshore sector integration by combining offshore wind energy with power-to-x technologies and storage. In this study, we investigate the operation of electrolysers on energy islands, ... -
Electrolysis in reduced gravitational environments: current research perspectives and future applications
(Peer reviewed; Journal article, 2022)Electrochemical energy conversion technologies play a crucial role in space missions, for example, in the Environmental Control and Life Support System (ECLSS) on the International Space Station (ISS). They are also vitally ... -
Electrolysis of indium oxide in LiCl-KCl based molten salts with a liquid cathode
(Peer reviewed; Journal article, 2020)In this work, the feasibility of extracting of metallic indium from In2O3and ITO through the direct electrochemical reduction at 450°C in molten salt LiCl-KCl was studied. Cyclic voltammetry was carried out to study the ... -
Electrolyte Melt Compositions for Low Temperature Molten Carbonate Thermocell
(Journal article; Peer reviewed, 2018)Industrial processes for the production of metals and alloys by metallurgical and electrochemical methods generate a great deal of waste heat due to irreversible losses. This waste heat may be used as a power source to ... -
Electrolytic Removal of Chloride from Acidic Nitrate Solutions
(Master thesis, 2014)Chloride containing ores are among other things often used as the raw material in metal electrowinning from aqueous solutions. The dissolution of this ore may cause problems as chlorine gas will be evolved either as a side ... -
Electromagnetic analysis and electrical signature-based detection of rotor inter-turn faults in salient-pole synchronous machine
(Journal article; Peer reviewed, 2018)In this paper, rotor inter-turn faults in salient-pole synchronous machines are investigated using finite-element analysis. The machine under study is a 22 MVA eight-pole hydropower generator with fractional-slot windings. ... -
Electromagnetic Cascades in Active Galactic Nuclei Cores
(Master thesis, 2022)Følgende presenterer et dataprogram for simulering av elektromagnetiske kaskader, bestående av fotoner, elektroner og positroner, på den termiske bakgrunnsstrålingen fra en akkresjonsskive i en aktiv galaksekjerne. Programmet ... -
Electromagnetic Casting of Aluminium: Analyzing the Effect of EM Fields on Al and Al-Si Alloy Compared to Commercial Grain Refiners
(Bachelor thesis, 2022)Dette prosjektet hadde som formål å sammenligne den mulige kornfinings effekten fra et indusert elektromagnetisk felt med kommersielle kornfinere på en kommersiellt ren aluminium (99.7%) og en aluminium-silisium legering ... -
Electromagnetic Design of Modular Generators for Offshore Wind Power Applications
(Master thesis, 2020)Vindkraftproduksjonen har blitt mer konkurransedyktig sammenlignet med tradisjonelle energikilder. Likevel er det fortsatt mange områder av vindkraftproduksjon som kan dra nytte av økt effektivitet og andre foredringer. ... -
Electromagnetic field calculation and power loss evaluation in power transformers - Analysis of Leakage Fields and Stray Losses under Special Operation Conditions
(Doctoral theses at NTNU;2022:395, Doctoral thesis, 2022)The PhD research work presented in this thesis deals with electromagnetic field calculation and loss evaluation in power transformers under special operation conditions. The special loading conditions under investigation ... -
Electromagnetic imaging and deep learning for transition to renewable energies: a technology review
(Peer reviewed; Journal article, 2023)Electromagnetic imaging is a technique that has been employed and perfected to investigate the Earth subsurface over the past three decades. Besides the traditional geophysical surveys (e.g., hydrocarbon exploration, ... -
Electromagnetic Interference in Dwnhole Applications
(Master thesis, 2012)Summary Electromagnetic compatibility (EMC) and electromagnetic interference (EMI) are topics which have been of concern to electrical industry for many years. Excessive generation of electromagnetic noise and interference, ... -
Electromagnetic Modelling and Inversion of Seafloor Massive Sulphide Deposits - Imaging of SMS Deposits and the Asthenosphere at the Atlantic Mid-Ocean Ridge
(Master thesis, 2017)Seafloor massive sulphides (SMS) are seen as an increasingly important mineral resource for the future. Fewer mineral discoveries are being made in the shallow subsurface onshore, and therefore a more petroleum related ... -
Electromagnetic Navigation vs Fluoroscopy in Aortic Endovascular Procedures - A Phantom Study
(Master thesis, 2016)Purpose: To explore the possible benefits of electromagnetic (EM) navigation versus conventional fluoroscopy during abdominal aortic endovascular procedures. Methods: The study was performed on a phantom representing the ... -
Electromagnetic Oscillation Origin Location in Multiple-Inverter-Based Power Systems Using Components Impedance Frequency Responses
(Peer reviewed; Journal article, 2021)Existing impedance-based stability criterion (IBSC) for electromagnetic stability assessment of multiple-grid-connected-inverter (GCI)-based power systems suffers from several limitations. First, global stability feature ... -
Electromagnetic Principles for In Situ Ice Thickness Determination - Field Experiments and Development of New Methods for Interpretation
(Master thesis, 2015)During the spring of 2014 fieldwork in three different locations on Svalbard was conducted in order to investigate the application of electromagnetic methods on sea ice and ice ridges. Two validation grids, one transect ... -
Electromagnetic Scattering Calculations for Arbitrarily Shaped Closed Surfaces using the Method of Moments
(Master thesis, 2021)I denne oppgaven løses Maxwells likninger numerisk for det elektromagnetiske spred-ningsproblemet i to regioner ved bruk av overflateintegrallikninger og momentmeto-den. For å kunne diskretisere de ekvivalente strømmene ... -
Electromagnetic Scattering: A Surface Integral Equation Formulation
(Master thesis, 2012)A numerical approach to solving the problem of electromagnetic (EM) scattering on a single scatterer is studied. The problem involves calculating the total EM field in arbitrary observation points when a planar EM wave is ...