Blar i Øvrige samlinger på tittel
Viser treff 17034-17053 av 39118
-
Hybridization of complete PLCA and MRIO databases for a comprehensive product system coverage
(Peer reviewed; Journal article, 2020)Process‐based Life Cycle Assessments (PLCA) rely on detailed descriptions of extensive value chains and their associated exchanges with the environment, but major data gaps limit the completeness of these system descriptions ... -
Hydration of Portland cement accelerated by C-S-H seeds at different temperatures
(Peer reviewed; Journal article, 2020)C-S-H seeds have potential application as accelerators in oil well cementing pastes. Typical oil well conditions present elevated temperatures; nevertheless, is not clear how such temperatures affect the nucleation process ... -
Hydration Status During Commercial Saturation Diving Measured by Bioimpedance and Urine Specific Gravity
(Peer reviewed; Journal article, 2022)Excessive fluid loss triggered by hyperbaric pressure, water immersion and hot water suits causes saturation divers to be at risk of dehydration. Dehydration is associated with reductions in mental and physical performance, ... -
Hydraulic and structural evaluation of rockfill dam behavior when exposed to throughflow and overtopping scenarios
(HydroCen brief;Nr. 2, Report, 2020) -
Hydraulic Characterization of Ceramic Foam Filters Used in Aluminum Filtration
(Peer reviewed; Journal article, 2023)Ceramic Foam Filters (CFF) are frequently used during the filtration of aluminum (Al) melts to produce high-quality products. In the present study, the physical and hydraulic characteristics of alumina (Al2O3)-based CFF ... -
Hydraulic efficiency and optimization of pipe culvert inlet edges
(Peer reviewed; Journal article, 2023) -
Hydraulic physical model production with Computer Numerically Controlled (CNC) manufacturing techniques
(Journal article; Peer reviewed, 2018)Physical models are a well-accepted tool in hydraulic engineering, allowing for the detailed characterisation of flow processes and the validation of structure designs with complex boundary conditions. The methods used to ... -
Hydraulic scale modelling and thermodynamics of mass oscillations in closed surge tanks
(Journal article; Peer reviewed, 2015)The design and results from a hydraulic scale model of mass oscillations in a hydropower plant with a closed surge tank constructed as an underground rock cavern are presented. The results from the model test of an existing ... -
Hydraulic scale modelling of the rating curve for a gauging station with challenging geometry
(Peer reviewed; Journal article, 2019)Direct discharge measurements during flood events can be challenging from a technical as well as from a safety point of view. Therefore, flood discharges are often estimated by extrapolating a rating curve. Extrapolations ... -
Hydraulic Structures- At the Heart of 21st Century Global Sustainable Development
(Journal article, 2023)For millennia, societal progress, health and prosperous economic growth has been closely linked to development of water infrastructure. Now in the 21st century, humankind faces some immense challenges including increasing ... -
Hydraulic Transient Impact on Surrounding Rock Mass of Unlined Pressure Tunnels
(Peer reviewed; Journal article, 2023)The frequent pressure pulsations due to hydraulic transients in hydropower plants induce cyclic loading on the rock mass that may contribute to increased instances of block falls and increased risk of tunnel collapse over ... -
Hydrides of Laves type Ti–Zr alloys with enhanced H storage capacity as advanced metal hydride battery anodes
(Peer reviewed; Journal article, 2020)The present work was focused on the studies of the effect of variation of stoichiometric composition of Ti–Zr based AB2±x Laves phase alloys by changing the ratio between A (Ti + Zr) and B (Mn + V + Fe + Ni) components ... -
Hydro Power Reservoir Aggregation via Genetic Algorithms
(Journal article; Peer reviewed, 2017)Electrical power systems with a high share of hydro power in their generation portfolio tend to display distinct behavior. Low generation cost and the possibility of peak shaving create a high amount of flexibility. However, ... -
Hydro reservoir levels and power price dynamics: empirical insight on the nonlinear influence of fuel and emission cost on Nord Pool day-ahead electricity prices
(Journal article; Peer reviewed, 2015)This paper examines the dependency of the hourly day-ahead electricity price on fundamentals in the Nord Pool power market. We examine whether power prices depend differently on supply and demand variables when hydro ... -
Hydro-Elastic Analysis of a Floating Bridge in Waves Considering the Effect of the Hydrodynamic Coupling and the Shore Sides
(Chapter, 2018)A new numerical method, which is based on three-dimensional (3D) potential flow theory and finite element method (FEM), is used to predict the wave-induced hydroelastic responses of flexible floating bridges. The floating ... -
Hydro-plastic response of beams and stiffened panels subjected to extreme water slamming at small impact angles, Part I: An analytical solution
(Journal article; Peer reviewed, 2019)Water impact (slamming) is a strongly nonlinear phenomenon including significant fluid structure interactions. In the case of slamming with a small impact angle between the structure and water, the coupling between ... -
Hydro-plastic response of beams and stiffened panels subjected to extreme water slamming at small impact angles, Part II: Numerical verification and analysis
(Journal article; Peer reviewed, 2019)An analytical model has been proposed for the response of beams and stiffened panels subjected to extreme flat or nearly flat water impacts in Part I of the two-part companion paper. The model aims to capture the significant ... -
Hydro-plastic slamming
(Chapter, 2019)Ships and offshore structures will unavoidably experience water impacts (slamming) through-out their service time. During slamming, the coupling between hydrodynamic pressure and the elastic structural response, termed as ... -
Hydro-thermal power market equilibrium with price-making hydropower producers
(Journal article; Peer reviewed, 2018)This paper formulates an electricity market dominated by price-making hydro-thermal generation. Generation companies optimize their unit commitment, scheduling and bidding decisions simultaneously as a Mixed Integer ... -
Hydroacoustically Aided Inertial Navigation for Joint Position and Attitude Estimation in Absence of Magnetic Field Measurements
(Journal article; Peer reviewed, 2017)When an underwater intervention vehicle is close to large metallic structures, e.g. subsea oil and gas facilities, magnetic disturbances might render magnetic field measurements biased or useless. This loss of information ...