Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 18181-18200 of 22924
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Rock Stress Measurements for Unlined Pressure Tunnels: A True Triaxial Laboratory Experiment to Investigate the Ability of a Simplified Hydraulic Jacking Test to Assess Fracture Normal Stress
(Peer reviewed; Journal article, 2021)To avoid hydraulic failure of unlined pressure tunnels, knowledge of minimum principal stress is needed. Such knowledge is only obtainable from in situ measurements, which are often time-consuming and relatively costly, ... -
Rock Support by Rock Mass Classification Systems for TBM Tunnelling - In Upper Kon Tum, Vietnam
(Master thesis, 2018)The purpose of this thesis is to study the difference in the use of rock support measures in tunnels excavated by different methods. The methods examined are excavation by Tunnel Boring Machine (TBM) and excavation by drill ... -
Rock-avalanche deposit causes extreme high indoor radon concentrations in Kinsarvik, Ullensvang municipality, Western Norway
(Peer reviewed; Journal article, 2023)The radon problem in Kinsarvik, Ullensvang municipality in Western Norway, is among the most severe in the world. Annual average indoor radon concentrations as high as 56,000 Bq/m3 have been measured. The problem affects ... -
Rockfill dam breaching experiments with the application of photogrammetry techniques
(Master thesis, 2021)Damaging outbursts of flooding triggered by embankment failures must be evaluated as part of the risk management of possible threats in order to prepare emergency action plans. The best testing procedure is to use statistically ... -
rockphypy: An extensive Python library for rock physics modeling
(Peer reviewed; Journal article, 2023)Rock physics aims to understand the relationship between the physical properties of rocks and geophysical observables under various conditions. The generic knowledge provides valuable insights into the behavior of subsurface ... -
Rogfast, analyse av TBM-driving gjennom svakhetssone med fokus på skvising
(Master thesis, 2014)E39 Rogfast mellom Randaberg og Bokn vil bli verdens lengste undersjøiske veitunnel og Norges dypeste undersjøiske tunnel. I denne masteroppgaven er det blitt foretatt en analyse av TBM-driving gjennom en utvalgt svakhetssone ... -
Rogfasttunnelen: Analyse av drivetekniske forhold, stabilitet og sikringsbehov for avgreining til Kvitsøy
(Master thesis, 2012)Rogfast er ein planlagt 26 km undersjøisk to løps T12,5 tunnel som skal kryssa Boknafjordenmellom Randaberg og Bokn. Djupaste punkt er på 390 meter under havet og skal i tillegg haeit toplans kryss med ein T10,5 enkel 4 ... -
A Role for Bose-Einstein Condensation in Astrophysics
(Peer reviewed; Journal article, 2023)We revive a 60-year-old idea that might explain a remarkable new observation of a periodic low-frequency radio emission from a source at galactic distances (GLEAM-X J162759.5-523504.3). It derives from the observation that ... -
Role of calcium on chloride binding in hydrated Portland cement–metakaolin–limestone blends
(Journal article; Peer reviewed, 2017)Chloride binding is investigated for Portland cement–metakaolin–limestone pastes exposed to CaCl2 and NaCl solutions. The phase assemblages and the amount of Friedel's salt are evaluated using TGA, XRD and thermodynamic ... -
Role of cementite morphology on corrosion layer formation of high-strength carbon steels in sweet and sour environments
(Peer reviewed; Journal article, 2023)The effect of cementite morphology on the corrosion layer formation of four high-strength carbon steels was studied in an aqueous solution containing CO2 and CO2/H2S. The linear polarization resistance and weight loss data ... -
The role of crystallinity and particle morphology on the sorption of dibutyl phthalate on polyethylene microplastics: Implications for the behavior of phthalate plastic additives
(Peer reviewed; Journal article, 2021)The sorption behavior of phthalate additives in plastic and microplastic litter is an important process controlling the exposure, net health risk and ecotoxicity of these co-occurring pollutants. Plastic crystallinity and ... -
Role of export industries on ozone pollution and its precursors in China
(Peer reviewed; Journal article, 2020)This study seeks to estimate how global supply chain relocates emissions of tropospheric ozone precursors and its impacts in shaping ozone formation. Here we show that goods produced in China for foreign markets lead to ... -
Role of Five-fold Twin Boundary on the Enhanced Mechanical Properties of fcc Fe Nanowires
(Journal article; Peer reviewed, 2011)The role of 5-fold twin boundary on the structural and mechanical properties of fcc Fe nanowire under tension is explored by classical molecular dynamics. Twin-stabilized fcc nanowire with various diameters (6~24 nm) are ... -
The role of green industrial transformation in mitigating carbon emissions: Exploring the channels of technological innovation and environmental regulation
(Peer reviewed; Journal article, 2023)The industrial sector is vital to economic progress, yet industrial pollution poses environmental and economic concerns. The purpose of the study was to investigate the influence of green industrial transformation in ... -
Role of higher education in sustainability of water resources An assessment of institutions in India
(Journal article; Peer reviewed, 2020)The motivation behind this paper is to understand the status of water resources management education provided in higher education institutions (HEIs) in India and decipher gaps between what is taught and what is needed in ... -
The role of hydropower in renewable energy sector toward co2 emission reduction during the COVID-19 pandemic
(Journal article; Peer reviewed, 2021)Due to the Coronavirus 2019 (COVID-19) pandemic social distance became a necessary strategy adopted in order to curb the fast-rise of infection. However, this strategy adopted by the government has impacted the socio-economic ... -
Role of Information in an SME in a Local Food Supply Chain - Case Study of a Norwegian Craft Beer Retailer
(Master thesis, 2016)Demand for locally produced food is increasing and the industry is gaining increased attention. But, many challenges are present for actors in local food supply chains (LFSC), and are especially related to limited capacity. ... -
The role of Lagrangian drift in the geometry, kinematics and dynamics of surface waves
(Peer reviewed; Journal article, 2023)The role of the Lagrangian mean flow, or drift, in modulating the geometry, kinematics and dynamics of rotational and irrotational deep-water surface gravity waves is examined. A general theory for permanent progressive ... -
Role of Metal 3D Printing to Increase Quality and Resource-efficiency in the Construction Sector
(Journal article, 2021)Demand for the construction of new structures is increasing all over the world. Since the construction sector dominates the global carbon footprint, new construction methods are needed with reduced embodied carbon and high ... -
The Role of Occupants in Buildings’ Energy Performance Gap: Myth or Reality?
(Peer reviewed; Journal article, 2021)Buildings’ expected (projected, simulated) energy use frequently does not match actual observations. This is commonly referred to as the energy performance gap. As such, many factors can contribute to the disagreement ...