Blar i NTNU Open på tittel
Viser treff 79068-79087 av 100017
-
Security-Driven Hybrid Collaborative Recommendation Method for Cloud-based IoT Services
(Peer reviewed; Journal article, 2020)The rapid development of IoT (Internet of Things) systems and cloud techniques has paved the way for recommender systems to facilitate the daily life of users. However, the accompanying cybersecurity risks, such as ... -
Sediment Erosion Generated by a Coandă-Effect-Based Polymetallic-Nodule Collector
(Peer reviewed; Journal article, 2023)To date, hydraulic collection is the most widely considered technology in polymetallic-nodule mining, since there is no direct contact between hydraulic collectors and ocean floor. To construct a hydraulic collector that ... -
Sediment erosion in a centrifugal pump
(Master thesis, 2011)AbstractWith a decrease in orders for their regular standard cargo-pump for chemical tankers, Frank Mohn Fusa started developing a new cargo-pump for the Offshore Supply Vessel market. This meant designing a pump which ... -
Sediment Erosion in Francis Turbines
(Master thesis, 2009) -
Sediment Erosion in Francis Turbines
(Master thesis, 2009)The high concentration of sediments in the rivers near the Andes and the Himmalayas, is a large problems for run-of-river power plants. Small particles of quartz, which is a hard and sharp mineral, damage the turbine and ... -
Sediment erosion in Francis turbines
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:250, Doctoral thesis, 2013)Sediment erosion is a major challenge for run-of-river power plants, especially during flood periods. Due to the high content of hard minerals such as quartz and feldspar carried in the river, substantial damage is observed ... -
Sediment Erosion in Hydro turbines
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:104, Doctoral thesis, 2010)Sediment erosion is caused by the dynamic action of sediment flowing along with water impacting against a solid surface. Hydraulic turbine components operating in sediment-laden water are subject to abrasive and erosive ... -
Sediment erosion in the labyrinths of Francis turbine: A numerical study
(Peer reviewed; Journal article, 2022)Development of new hydropower projects in Himalayan regions aims for the efficient performance of the turbine with lesser operation and maintenance cost. Over the past two decades, significant efforts have been made to ... -
Sediment Movement over Type A Piano Key Weirs
(Peer reviewed; Journal article, 2021)This investigation deals with the mechanics of movement of singular quartz gravel and coarse sand riverbed particles upstream and over the inlet key of three Type A piano key weir (PKW) models, which were recorded with a ... -
Sediment removal performance of a hydrodynamic vortex separator
(Master thesis, 2020)Avrenning fra veg representerer en betydelig kilde av partikler og forurensninger som slippes ut i elver og andre resipienter. Akkumulering av tungmetaller kan påvirke den økologiske tilstanden i vassdrag betydelig, men ... -
Sediment source-to-sink in a warming Arctic; thawing moraines, slope processes and river erosion in Longyeardalen, Svalbard
(Master thesis, 2022)Klimaendringer i Arktis endrer forutsetningene for sedimenttransport fra kilde til avsetning i Longyearbyen, Svalbard, og skaper potensielle problemer for infrastruktur og menneskesikkerhet. Sedimentkildene; isbreer, ... -
Sediment Transport in Combined Wave–Current Seabed Boundary Layers due to Streaming
(Peer reviewed; Journal article, 2021)The sediment transport in the seabed boundary layer due to wave-induced streaming has been investigated for nonzero angle between the current and the waves. The mean sediment transport is a result of interaction between ... -
Sediment yield assessment and management strategy for Paso Ancho Hydropower Plant
(Master thesis, 2019)Paso Ancho is run off river hydropower plant with an install capacity of 6.4MW and located in south west region of panama. The catchment area of the powerplant is highly exposed for erosion. Therefore, sedimentation is the ... -
Sedimentation and Bleeding of Cement Paste
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:89, Doctoral thesis, 2014)The lower viscosity and high matrix volume of Self-Compacting Concrete (SCC) compared to ordinary concrete can lead to instability in the form of particle segregation, sedimentation and bleeding. This is a problem for the ... -
Sedimentation and sediment handling in Himalayan reservoirs
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:208, Doctoral thesis, 2012)Dams have been promoted as an important means of meeting needs for water and energy. Due to increasing population in the earth, more dams are needed to be built in the future to meet people’s increased demand for water, ... -
Sedimentation and Sustainability of Hydropower Reservoirs: Cases of Grand Ethiopian Renaissance Dam on the Blue Nile River in Ethiopia
(Master thesis, 2013)Summary Sediment accumulation in a reservoir is a serious problem that threatens sustainability of the reservoir and has severe consequence on reservoir productivity during its operation time. In order to predict the ... -
Sedimentation process and stratigraphic evolution of deep-water sediments in Sørvestsnaget Basin, Southwestern Barents Sea
(Master thesis, 2015)Deep-water clastic reservoirs are one of the most important hydrocarbon plays in the Atlantic region, especially on the Norwegian Continental Shelf. In the Sørvestsnaget Basin, the provenance and origin of Tertiary sediments ... -
Sedimentological and structural features in the Zechstein Supergroup in the SE-Northern Salt Basin, North Sea
(Master thesis, 2015)The focus area lies in the south-east Northern Salt Basin, and comprises the proximity of the Mandal High, a crystalline elongated horst in the southern North Sea. The Mandal High is considered as a possible analogue to ... -
Sedimentological Correlation of Heterogeneous Reservoir Rocks: Effects of Lithology, Differential Compaction and Diagenetic Processes
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:242, Doctoral thesis, 2010)Correlation of reservoir rocks is a challenge in many types of reservoirs around the world today. In a time where the focus has slowly shifted away from the giant fields, towards development of smaller, more marginal fields, ... -
A sedimentological study of black shales from the Spekk Formation, Norwegian Sea
(Master thesis, 0216)Black shales from the Late Jurassic-Early Cretaceous Spekk Formation have been investigated by using a detailed sedimentological approach. Four IKU drilling cores from the Norwegian Sea have been used as study material to ...