Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 12628-12647 of 12818
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Vibration and Fluorescence Spectra of Porphyrin-Cored 2,2-Bis(methylol)-propionic Acid Dendrimers
(Journal article; Peer reviewed, 2009)Bis-MPA dendron-coated free-base tetraphenylporphyrin and zinc-tetraphenyl-porphyrin (TPPH2 and TPPZn) were studied in comparison with simple porphyrins (H2P, ZnP) by theoretical simulation of their infrared, Raman and ... -
Vibrational motion in molecules
(Master thesis, 2014)Zero-point vibrational corrections are carried out with analytical geometry and property derivatives at DFT level. This correction is obtained using a variation-perturbation approach, and is carried out around a variationally ... -
Vibrational spectroscopic study of pH dependent solvation at an Ge(100)-water interface during an electrode potential triggered surface termination transition.
(Journal article; Peer reviewed, 2018)The charge-dependent structure of interfacial water at the n-Ge(100)-aqueous perchlorate interface was studied by controlling the electrode potential. Specifically, a joint attenuated total reflection infrared spectroscopy ... -
Videobasert kompendium for laboratoriekurs i immunhematologi og transfusjonsmedisin til bruk ved Bioingeniørutdanning ved NTNU Ålesund
(Bachelor thesis, 2016)Denne oppgaven er verken kvalitativ eller noen studie. Oppgaven har som formål å gi et hjelpemiddel til studenter ved bioingeniørutdanningen ved NTNU Ålesund, mer spesifikt et hjelpemiddel til laboratorieøvelse i fagene ... -
Videoobservasjoner av dyptlevende bentiske organismer - Effekten av rødt og hvitt kunstig lys
(Bachelor thesis, 2022)Effekten kunstig lys med ulike bølgelengder har på marine bentiske organismer ble undersøkt ved to lokaliteter nær et lakseoppdrettsanlegg på Gudmundset, Norge. Kunstig lys med ulik bølgelengde (λ) kan fremprovosere ulike ... -
Videreutvikling av et undervisningsopplegg i mat- og helsefaget basert på Fagfornyelsen 2020
(Bachelor thesis, 2019)Denne bacheloroppgaven var en del av LianTunets pågående prosjekt med å videreutvikle konseptet Matnyttig skoledag til et undervisningsopplegg som kan brukes nasjonalt. LianTunet AS er et selskap som ønsker å fremme holdning ... -
Vietnamese chitin raw material, the chitin de- N -acetylation reaction, and a new chitosanalginate gelling concept
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:177, Doctoral thesis, 2013)Chitin is a linear biopolymer composed of 2-acetamido-2-deoxy-D-glucopyranose (N-acetylglucosamine or GlcNAc, A-unit) linked by ß – (1-4) glycosidic linkages. Chitin occurs as a structural polysaccharide in animals ... -
Vigilance Behaviour of Wild Herbivores when Foraging With or Without Livestock.
(Journal article, 2019)In African savannas, and many other rangelands around the world, wildlife presently find themselves interacting with livestock. Many studies have been conducted on vigilance behaviour in response to presence of predators ... -
Vindrør som læringsarena - Utformingen av en interaktiv utstillingsmodells betydning for elevers læring i grupper.
(Master thesis, 2019)Masteroppgaven er en studie av en utstillingsmodell på et vitensenter og aktiviteten til ungdomsskoleelever rundt denne. Modellen blir kalt «Vindrøret» og er utstilt på Vitengarden på Nærbø. Bakgrunnen for studien er et ... -
Vinterdrift av 3G-kunstgressbaner: En undersøkelse av tungmetaller og salter i jord rundt en bane i Trøndelag
(Bachelor thesis, 2020)Varierende klimaforhold og stor etterspørsel for økt spilletid har ført til en drastisk økning i antall kunstgressbaner i Norge de siste tjue årene. Mesteparten av disse banene er 3G-baner som inneholder ifyll av gummigranulat. ... -
Vinyl Amide Reactions in the Presence of Gold(I) Catalyst
(Master thesis, 2012)Reaksjoner med vinylderivater i nærvær av gull(I)katalysator. Sykloaddisjoner og dimeriseringsreaksjoner er studert. -
Virkningen av økte næringssaltutslipp fra akvakultur på strukturen i planteplanktonsamfunnet
(Master thesis, 2013)Et mesokosmeforsøk ble gjennomført over 20 dager i Hopavågen, Sør-Trøndelag. Forsøket ble startet under en typisk sensommer med resirkulerte næringsstoffer i et stratifisert vannlag (~10 m) og dominans av dinoflagellater ... -
Virtual inflow estimation with simplified tuning using cascaded and Kalman-like least squares observers
(Journal article; Peer reviewed, 2018)Multiphase metering is often unavailable, unreliable or expensive, which makes model-based, virtual monitoring a cheap and reliable alternative in order to obtain information about e.g. the inflows to a device. This paper ... -
Viscoelastic properties of interfacial lignosulfonate films and the effect of added electrolytes
(Peer reviewed; Journal article, 2020)New evidence is presented, which confirmed interfacial gelling of lignosulfonates in presence of di- and trivalent cations. In this article, the viscoelastic properties of lignosulfonate films at the water-xylene interface ... -
Viscoelastic properties of interfacial lignosulfonate films and the effect of added electrolytes
(Peer reviewed; Journal article, 2020)New evidence is presented, which confirmed interfacial gelling of lignosulfonates in presence of di- and trivalent cations. In this article, the viscoelastic properties of lignosulfonate films at the water-xylene interface ... -
Viscoelastic properties of nanocellulose based inks for 3D printing and mechanical properties of CNF/alginate biocomposite gels
(Journal article; Peer reviewed, 2019)Inks for 3D printing based on cellulose nanofibrils (CNFs) or mixtures of CNFs and either cellulose nanocrystals (CNCs) or alginate were assessed by determining their viscoelastic properties i.e. complex viscosity and ... -
Viscosity measurements of CO<inf>2</inf>-rich; CO<inf>2</inf> + N<inf>2</inf> and CO<inf>2</inf> + H<inf>2</inf> mixtures in gas or supercritical phase at temperatures between 273 and 473 K and pressures up to 8.7 MPa
(Peer reviewed; Journal article, 2022)New experimental viscosity data of three binary CO2-rich mixtures with approximate mole fractions of 0.93 CO2 + 0.07 H2, 0.80 CO2 + 0.20 H2, and 0.90 CO2 + 0.10 N2 are reported. The measurements were performed at four ... -
Viscosity, Density and Volatility of Binary Mixtures of Imidazole, 2-Methylimidazole, 2,4,5-Trimethylimidazole and 1,2,4,5-Tetramethylimidazole with Water
(Journal article; Peer reviewed, 2019)Experimental measurements and modeling of the density and viscosity of binary solutions of imidazole, 2-methylimidazole, 2,4,5-trimethylimidazole, and 1,2,4,5-tetramethylimidazole with water have been conducted. The ... -
Viscosity, structure and glass formationin the AlCl3-ZnCl2 system
(Dr. ingeniøravhandling, 0809-103X; 2001:36, Doctoral thesis, 2001)Thermodynamic, viscous and structural properties of melts and glasses in the AlCl3-ZnCl2 system have been investigated. The two pure components are fundamentally different in the molten state. Both metal atoms are four ... -
Viscous cosmology - Bulk viscosity in the cosmological context
(Master thesis, 2015)The main objective of this thesis has been to estimate the present value of the bulk viscosity of the cosmic fluid. The following list contains a summary of the main results found in the present work: -The bulk viscosity ...