Browsing NTNU Open by Title
Now showing items 70561-70580 of 101211
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Photon-assisted Landau-Zener transitions in driven few-level systems
(Master thesis, 2019)I denne avhandlinga utforskar me Landau-Zener overgangar i drivne få-nivå system. Me behandlar drivingsfeltet både semi-klassisk (som ein tidsavhengig parameter i Hamilton operatoren) og heilt kvantemekanisk (som eit ... -
Photonic composite materials from cellulose nanorods and clay nanolayers
(Peer reviewed; Journal article, 2020)Cellulose nano crystals (CNCs) are promising materials for energy efficient buildings related to the control of reflectivity and heat absorption/reflection of light. In this sense it is important to improve CNCs films fire ... -
Photonic crystal light emitting diode
(Master thesis, 2010)This master's thesis describe electromagnetic simulations of a gallium antimonide (GaSb) light emitting diode, LED. A problem for such devices is that most of the generated light is reflected from the surface due to total ... -
Photonic Crystal Structures: Design and Fabrication
(Master thesis, 2013)This thesis is devoted to the study of photonic crystal (PhC) design and fabrication. The design of a trigonal PhC waveguide is evaluated using finite element method (FEM) simulation software, and some considerations ... -
Photonic Crystal Waveguide Fabrication
(Master thesis, 2012)This research is entirely devoted to the study and fabrication of structures with periodic dielectric constants, also known as photonic crystals (PhCs). These structures show interesting dispersion characteristics which ... -
Photonic-crystal membranes for optical detection of single nano-particles, designed for biosensor application
(Peer reviewed; Journal article, 2012)A sensor designed to detect bio-molecules is presented. The sensor exploits a planar 2D photonic crystal (PC) membrane with sub-micron thickness and through holes, to induce high optical fields that allow detection of ... -
Photoperiodism and overwintering in boreal and sub-Arctic Calanus finmarchicus populations
(Journal article, 2023)ABSTRACT: The copepod Calanus finmarchicus, a key species in the North Atlantic, generally spends the non-productive season by descending into deep waters and entering diapause, a physiological state characterized by reduced ... -
Photophysiological cycles in Arctic krill are entrained by weak midday twilight during the Polar Night
(Peer reviewed; Journal article, 2021)Light plays a fundamental role in the ecology of organisms in nearly all habitats on Earth and is central for processes such as vision and the entrainment of the circadian clock. The poles represent extreme light regimes ... -
Photophysiologically active green, red, and brown macroalgae living in the Arctic Polar Night
(Peer reviewed; Journal article, 2023)Abstract: Arctic macroalgae species have developed different growth strategies to survive extreme seasonal changes in irradiance in polar regions. We compared photophysiological parameters such as the light saturation ... -
Photoprotection of riboflavin containing beverages
(Master thesis, 2012)Riboflavin, also known as vitamin B2 and one of the most easily absorbed nutrients,can be found in many different organisms. The most abundant source of riboflavin ismilk and dairy products; however it is also present in ... -
Photosensitized and Photothermal Stimulation of Cellular Membranes by Organic Thin Films and Nanoparticles
(Peer reviewed; Journal article, 2022)Conjugated polymers are increasingly exploited for biomedical applications. In this work, we explored the optical characteristics of conjugated polymers of variable chemical structures at multiple levels relevant to ... -
Photosensitizing effects of Al(III) Phthalocyanine Chloride Disulfonic Acid (AlPcS2a) – in vitro studies on AY-27 and T-24 cells
(Master thesis, 2021)Fotodynamisk terapi (PDT) er en behandlingsmetode som benytter et fotosensibiliserende stoff (PS) som induserer celledød ved aktivering av lys. Fotokjemisk internalisering (PCI) er en ny teknologi som bygger videre på de ... -
Photosensitizing Effects of Novel Glycosylated Chlorin Complexes on the AY-27 Cancer Cell Model
(Master thesis, 2020)Målet for dette prosjektet var å finne potensialet til KA20-familien av glykosylerte kloriner som fotosensibiliserende forbindelser i fotodynamisk terapi (PDT) av kreftsykdom. Kreft er en av verdens ledende dødsårsaker. ... -
Photosynthetic Response to increasing Temperatures - a Comparison between prostrate and erect alpine Shrubs
(Master thesis, 2015)As a response to climate change, shrub biomass has increased in alpine and arctic tundra ecosystems. Substantial shrub encroachment can lead to changes in carbon fluxes, due to a shift in community compositions and functional ... -
Photosynthetic responses as a function of light and temperature: Field and laboratory studies on marine microalgae
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:111, Doctoral thesis, 2007)The aim of my thesis is to elucidate the different pathways of light in the marine environment, from underwater irradiance to the absorption of photons in microalgae. The pathway is followed through light harvesting and ... -
Photosynthetic Responses of maize (Zea mays L.) seedlings to heat and drought stress
(Master thesis, 2017)Like all other plants, maize (Zea mays L.) depends on the environment for growth. It is also an important food source for the continuously increasing human population. However, due to the recent changes in climate, maize ... -
Phototaxis in Calanusfinmarchicus – light sensitivity and the influence of energy reserves and oil exposure
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:376, Doctoral thesis, 2013) -
Phototherapy of newborns suffering from hyperbilirubinaemia: An experimental study
(Doctoral thesis, 2003) -
Photovoltaic Power Prediction and Control Strategies of the Local Storage Unit at Campus Evenstad
(Master thesis, 2018)This thesis represents a building block for future model predictive control of a battery connected to a complex energy system consisting of a photovoltaic (PV) system and a combined heat and power (CHP) plant. The complex ... -
Photovoltaic Solar Cooker with Heat Storage
(Master thesis, 2020)Mennesker som lever i avsidesliggende områder sør for Sahara i Afrika har generelt ikke tilgang på strøm fra det nasjonale strømnettet. Av den grunn brukes biobrensel som energikilde for matlaging, som leder til dårlig ...