Blar i Fakultet for naturvitenskap (NV) på tittel
Viser treff 8250-8269 av 12512
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Optimizing hydroxyl airglow retrievals from long-slit astronomical spectroscopic observations
(Journal article; Peer reviewed, 2017)Astronomical spectroscopic observations from ground-based telescopes contain background emission lines from the terrestrial atmosphere's airglow. In the near infrared, this background is composed mainly of emission from ... -
Optimizing methane recovery: Techno-economic feasibility analysis of N2-selective membranes for the enrichment of ventilation air methane
(Peer reviewed; Journal article, 2020)Utilization of the low concentration methane from coal-mining ventilation air is challenging but can significantly contribute to the mitigation of methane emissions to the atmosphere. This work focuses on the techno-economic ... -
Optimizing Microalgae Biomass Production; Using Nanomaterials for Enhanced Light Transport
(Master thesis, 2020)Den lave utnyttelsen av lys i nåværende fotobioreaktorer er en stor utfordring når det kommer til å gjøre industriell produksjon av mikroalger økonomisk lønnsomt. En lovende strategi for å forbedre den volumetriske ... -
Optimizing multiple beam interferometry in the surface forces apparatus: Novel optics, reflection mode modeling, metal layer thicknesses, birefringence, and rotation of anisotropic layers
(Journal article; Peer reviewed, 2019)Multiple beam interferometry (MBI) evolved as a powerful tool for the simultaneous evaluation of thin film thicknesses and refractive indices in Surface Forces Apparatus (SFA) measurements. However, analysis has relied on ... -
Optimizing of Strømhard austenitic manganese steel
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:88, Doctoral thesis, 2009)In the present doctoral thesis the focus has been on two different ways to achieve improvement of the mechanical properties of an austenitic manganese steel. One of them was to introduce substrate particles and see if this ... -
Optimizing the Capacity of Thermal Energy Storage in Industrial Clusters
(Chapter, 2020)A key factor for energy-efficient industrial clusters is the recovery of waste heat. To this end, thermal energy storage (TES) is an appealing technology that facilitates dynamic heat integration between supplier and ... -
Optimizing the shape anisotropy of gold nanoparticles for enhanced light harvesting and photocatalytic applications
(Journal article; Peer reviewed, 2022) -
Optimum operation of wave power converter
(Others, 1976) -
Optimum scavenger concentrations for sonochemical nanoparticle synthesis
(Journal article; Peer reviewed, 2023)Maintaining nanoparticle properties when scaling up a chemical synthesis is challenging due to the complex interplay between reducing agents and precursors. A sonochemical synthesis route does not require the addition of ... -
Optimum solvent concentration to lower energy demands for CO2 capture in refinery cases
(Journal article, 2022)An open-access novel low-energy solvent HS-3 has been proposed and verified in the lab scale for post-combustion CO2 capture. The HS-3 solvent consists of a tertiary amine with a strong bicarbonate former and a primary ... -
Optimzing the 5'-end of Coding Sequences in Recombinant mRNA to achieve high-level Expression in the Bacterium Escherichia coli
(Master thesis, 2012)Recombinant protein production in Escherichia coli provides a cheap and efficient way of producing medically and industrially relevant proteins. Sequence features of individual genes and especially their 5 terminal coding ... -
Options to Improve Water Quality and Operation of Treatment at Rud Svømmehall (Bærum)
(Bachelor thesis, 2022)Mennesker forurenser svømmebasseng med ulike stoffer, slik som svette, urin, hår, kosmetikk og døde hudceller. Uten behandling vil disse stoffene lagres i vannet over tid. Det er dermed viktig med gode vannbehandlingsprosesser ... -
Order-Disorder Transition of Triple Helical -1,3-D-Glucans in Aqueous Mixtures of Dimethyl Sulfoxide and Imidazole: Schizophyllan and its Chemically Modified Derivatives
(Peer reviewed; Journal article, 2023)Schizophyllan is a high molecular weight β-1,3-D-glucan having three β-1,3-D-glucoses and one branched β-1,6-D-glucose in the repeating unit. It dissolves as a triple helix in aqueous solutions but exhibits two separate ... -
Ordering and Preferred Orientation in Films of Polymeric Semiconductors
(Dr. ingeniøravhandling, 0809-103X; 2002:145, Doctoral thesis, 2003)Various aspects related to molecular ordering and preferred orientation in films of polymeric semiconductors is presented. The polymers poly(alkylthiophene)s (PATs) and poly(3,4- ethylenedioxythiophene)s (PEDOTs), being ... -
Ore melting and reduction in silicomanganese production
(Journal article; Peer reviewed, 2010)The charge for silicomangansese production consists of manganese ore (often mixed with ferromanganese slag) dolomite or calcite, quartz, and in some cases, other additions. These materials have different melting properties, ... -
Organic binder as a substitute for bentonite in ilmenite pelletization
(Master thesis, 2012)TiZir Titanium & Iron produces high titania slag and high purity pig iron from ilmenite in Tyssedal. The ilmenite is pelletized before smelting. Bentonite is added to the ilmenite concentrate as a binder to give the pellets ... -
Organic chemicals associated with rubber are more toxic to marine algae and bacteria than those of thermoplastics
(Peer reviewed; Journal article, 2023)The current study investigated the chemical complexity of fifty plastic (36) and elastomer/rubber (14) methanol extracts from consumer products, focusing on the association with toxicity in two screening assays (bacteria ... -
Organic Contaminations in Sub-Marine AC and DC High-Voltage Cables
(Master thesis, 2012)In dielectric insulating materials subjected to alternating electric fields there are energy losses associated with polarization mechanisms and resistivity. A typical dielectric material used for insulation of high voltage ... -
Organic Electrolytes for Thermoelectric Devices and CNT Electrode functionalization by Nitrogen-doping
(Master thesis, 2012)In this thesis a thermoelectric cell is developed. Aligned Carbon Nanotubes and aligned Nitrogen-doped Carbon Nanotubes are used as electrode materials. Ferri/Ferrocyanide and Tetrabutylammonium Nitrate (TBAN) electrolytes have ... -
Organisk kjemi som allmenndannelse: En analyse av organisk kjemi i lærebøker i kjemi i perioden 1914-1960
(Master thesis, 2013)I denne oppgaven undersøkes det hvordan organisk kjemi ble presentert i lærebøkene med bakgrunn i innføringen av kjemi som et obligatorisk fag med Lov om høiere almenskole av 1896. Med tanke på dette er lærebøker i perioden ...