Results 91 to 100 of about 24,571,438 (253)
Dynamic modeling of the servovalves incorporated in the servo hydraulic system of the 70-meter DSN antennas [PDF]
As the pointing accuracy and service life requirements of the DSN 70 meter antenna increase, it is necessary to gain a more complete understanding of the servo hydraulic system in order to improve system designs to meet the new requirements.
Bartos, R. D.
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Using global datasets to estimate flood exposure at the city scale: an evaluation in Addis Ababa
Frontiers in Environmental ScienceIntroduction: Cities located in lower income countries are global flood risk hotspots. Assessment and management of these risks forms a key part of global climate adaptation efforts. City scale flood risk assessments necessitate flood hazard information,
Andrew B. Carr +8 more
doaj +1 more source
Measured pressures on the basis of bottom slab with gaps in the flow direction in a channel
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 A study was conducted to determine whether the back edges of the longitudinal gaps of a floor tile fixed to the bottom of a canal with a supercritical flow convert kinetic energy into pressure energy using Froude numbers in the range of 2.84 to 10.12 ...
Efraín del Risco Moreno +2 more
doaj +1 more source
Plant Physiology, 2014 Changes in evaporative demand or soil water status affect maize leaf growth in less than 1 h, considerably quicker than their effects on transpiration and leaf water potential, consistent with a hydraulic model. Plants are constantly facing rapid changes
C. Caldeira +5 more
semanticscholar +1 more source
, 2015 The rapid progress of lidar technology has made the acquirement and application of high-resolution digital elevation model (DEM) data increasingly popular, especially in regards to the study of floodplain flow.
D. Shen +4 more
semanticscholar +1 more source
Integrated Flood Management for Beiyun River, China
Journal of Hydrology and Hydromechanics, 2013 Beiyun River Basin is holistically suffering a water shortage and relatively concentrated flood risk. The current operation (level-control) of dams and floodgates, which is in passive defense mode, cannot meet the demands of both flood control and storm ...
Minghong Chen +3 more
doaj +1 more source
Developing Guidelines for Two-Dimensional Model Review and Acceptance [PDF]
, 2018 Two independent modelers ran two hydraulic models, SRH-2D and HEC-RAS 2D. The models were applied to the Lakina River (MP 44 McCarthy Road) and to Quartz Creek (MP 0.7 Quartz Creek Road), which approximately represent straight and bend flow conditions ...
Homan, Joel, Toniolo, Horacio
core
Numerical and physical model study of a vertical slot fishway
Journal of Hydrology and Hydromechanics, 2014 This paper presents the results of an experimental and numerical study of a vertical slot fishway (VSF). A 2-D depth-averaged shallow water numerical model PCFLOW2D coupled with three different turbulent models (constant eddy viscosity, Smagorinsky and k
Bombač Martin +3 more
doaj +1 more source
The brittleness index in hydraulic fracturing [PDF]
, 2015 We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
core
HydrologyTidal inlet structures are engineering projects with associated benefits related to flood control, water quality enhancement, and coastal protection. This study analyzes the performance of hydraulic gates on a stabilized inlet in estuarine systems by ...
Alfonso Arrieta-Pastrana +2 more
doaj +1 more source