Browsing Institutt for kjemi by Title
Now showing items 350-369 of 1017
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Harnessing thermoelectric power from transient heat sources: Waste heat recovery from silicon production
(Journal article; Peer reviewed, 2017)Thermoelectric generators (TEGs) are compact and robust devices for converting heat into electrical power. In this work, we investigate the response of a bismuth-telluride based TEG to the transient environment of a silicon ... -
Heat to Hydrogen by RED—Reviewing Membranes and Salts for the RED Heat Engine Concept
(Peer reviewed; Journal article, 2022)The Reverse electrodialysis heat engine (REDHE) combines a reverse electrodialysis stack for power generation with a thermal regeneration unit to restore the concentration difference of the salt solutions. Current approaches ... -
Heat transport through a solid-solid junction: the interface as an autonomous thermodynamic system
(Journal article; Peer reviewed, 2016-04)We perform computational experiments using nonequilibrium molecular dynamics simulations, showing that the interface between two solid materials can be described as an autonomous thermodynamic system. We verify the local ... -
The Heck reaction for synthesis of novel kinase inhibitors.
(Master thesis, 2015)Reaction conditions were investigated and developed for coupling of acrylates with different properties. A total of seven acrylic thienopyrimidines were synthesized, five of which were synthesized directly with the Heck ... -
Heterogeneous ceramic interfaces in solid oxide fuel cells and dense oxygen permeable membranes
(Dr. ingeniøravhandling, 0809-103X; 2000:109, Doctoral thesis, 2000)Solid oxide fuel cells and oxygen permeable membranes have received considerable attention during the last decade due to the increasing demand for electrical energy and easily transportable fuels combined with the requirement ... -
HF Formation Upon Addition of Different Industrial Aluminas to Cryolitic Baths
(Master thesis, 2011)The aluminium smelter at Hydro Sunndal has experienced problems with an unexpected increased loss of AlF3 from the electrolyte when using a certain quality of alumina. One hypothesis considered was that the fluoride loss ... -
High resolution inductively coupled plasma mass spectrometry: Some applications in biomedicine
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:109, Doctoral thesis, 2008)Even though trace elements are present at minute amounts in the human body, they have a considerable impact on human health, either as essential elements in biochemical functions indispensable for life, or on the contrary, ... -
High-Capacity Amine-Imidazole Solvent Blends for CO2 Capture
(Journal article; Peer reviewed, 2019)The CO2 absorption performance of aqueous solvent blends containing four imidazoles (2-MeIm, 2-Et-4-MeIm, 2,4,5-MeIm and 1,2,4,5-MeIm) and four promoters (MEA, DEA, PZ, and MAPA) were investigated using a small-scale ... -
A high-resolution polarimeter formed from inexpensive optical parts
(Peer reviewed; Journal article, 2020)We describe a high resolution laser polarimeter built from commodity optical components. The optical rotation angle is determined by measuring the phase difference between two harmonically modulated polarised laser beams ... -
Highly enantioselective CALB-catalyzed kinetic resolution ofbuilding blocks for β-blocker atenolol
(Journal article, 2016)Both enantiomers of 4-(3-chloro-2-hydroxypropoxy)phenyl)acetamide has been synthesized in 98.5–99% enantiomeric excess by use of lipase B from Candida antarctica as catalyst. The R-alcohol is a building block for the ... -
Hill's nano-thermodynamics is equivalent with Gibbs' thermodynamics for surfaces of constant curvatures
(Journal article; Peer reviewed, 2018)We review first how properties of curved surfaces can be studied using Hill’s thermodynamics, also called nano-thermodynamics. We proceed to show for the first time that Hill’s analysis is equivalent to Gibbs analysis for ... -
Homocysteine Electrochemistry at a Mercury Electrode in the Presence of Nickel Ions
(Chapter, 2007)Hcy gives rise to a series of voltammetric peaks in the presence of Ni2+ and under the conditions of cathodic stripping voltammetry, as follows: A) cathodic reaction of mercury thiolate (with a Ni2+-dependent peak potential); ... -
Hot-water Extraction of Hemicelluloses by Microwave Heating: A Study of Sugarcane Bagasse and Sawmill Shavings of Norway Spruce and Scots Pine as Raw Materials for Hemicellulose Extraction
(Master thesis, 2012)In light of the increasing focus on sustainability and bio-mass as feedstock for energy and chemicals, extraction of hemicelluloses from different kinds of lignocellulosic materials has received much attention. This thesis ... -
How do different nitrogen application levels and irrigation practices impact biological nitrogen fixation and its distribution in paddy system?
(Peer reviewed; Journal article, 2021)Background and aims Biological nitrogen fixation (BNF) in paddy systems is impacted by nitrogen application levels and irrigation strategies, but the extent to which these factors influence BNF and its distribution in ... -
How relevant is the deposition of mercury onto snowpacks? - Part 1: A statistical study on the impact of environmental factors
(Journal article; Peer reviewed, 2012)A portion of the highly toxic methylmercury that bioaccumulates in aquatic life is created from mercury entering bodies of water with snowpack meltwater. To determine the importance of meltwater as a source of aquatic ... -
HPLC Analysis of Aliphatic Sulfonate Surfactants using Ion-Pair Detection
(Journal article; Peer reviewed, 2005)A method was developed for the analysis of a number of surfactants which contained no UV-chromophores, using RP-HPLC with Indirect Photometric Detection, IPD. Pyridinium salts such as N-methylpyridinium iodide, ... -
Hvilke tiltak kan gjøres for å forminske miljøpåvirkningene fra krom i forurenset jord?
(Bachelor thesis, 2021)Krom er et metall som er mye brukt i industrisammenheng. En finner blant krom annet i stålindustrien, farging av lær, blekk og malings produksjon samt impregnering av treverk. Disse industriene er bare noen eksempler på ... -
Hvordan DEHP fra plastprodukt påvirker menneskers helse og hvilke alternativer har man til DEHP?
(Bachelor thesis, 2020) -
Hvordan fungerer det anerkjente smertelindrende stoffet ketamin i behandling mot depresjon, og er ketamin et trygt stoff å bruke?
(Bachelor thesis, 2020)Ketamin, solgt i Norge under handelsnavnet Ketalar®, er i hovedsak et legemiddel brukt mot smertelindring. I 2020 ble ketamin godkjent som legemiddel mot depresjon, da det ble konstatert at legemiddelet i små doser ga ...