Results 11 to 20 of about 883,471 (303)

Parametric and Optimization Study of Rectangular-Rounded, Hydraulic, Elastomeric, Reciprocating Seals at Temperatures between −54 and +135 °C

open access: yesLubricants, 2018
Hydraulic, reciprocating, polymeric seals are met in many engineering applications and are critical components for mechanism and machine reliability in industries including the automotive, marine, and aerospace industries.
George K. Nikas
doaj   +1 more source

Distribution of xylem hydraulic resistance in fruiting truss of tomato influenced by water stress [PDF]

open access: yes, 2003
In this study xylem hydraulic resistances of peduncles (truss stalk), pedicels (fruit stalk) and the future abscission zone (AZ) halfway along the pedicel of tomato (Lycopersicon esculentum L.) plants were directly measured at different stages of fruit ...
Ieperen, W., van   +2 more
core   +2 more sources

In situ mixing of organic matter decreases hydraulic conductivity of denitrification walls in sand aquifers [PDF]

open access: yes, 2008
In a previous study, a denitrification wall was constructed in a sand aquifer using sawdust as the carbon substrate. Ground water bypassed around this sawdust wall due to reduced hydraulic conductivity.
Barkle, Gregory F.   +3 more
core   +2 more sources

Experimental Study of 3D Movement in Cushioning of Hydraulic Cylinder

open access: yesEnergies, 2017
A double acting cylinder operation has been fully monitored in its key functional parameters, focused on characterization of end-of-stroke cushioning and starting phases.
Antonio Algar   +2 more
doaj   +1 more source

Exploring aquaporin functions during changes in leaf water potential

open access: yesFrontiers in Plant Science, 2023
Maintenance of optimal leaf tissue humidity is important for plant productivity and food security. Leaf humidity is influenced by soil and atmospheric water availability, by transpiration and by the coordination of water flux across cell membranes ...
Caitlin S. Byrt   +5 more
doaj   +1 more source

Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]

open access: yes, 2009
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Baroni, G.   +5 more
core   +3 more sources

Stem hydraulic capacitance decreases with drought stress : implications for modelling tree hydraulics in the Mediterranean oak Quercus ilex [PDF]

open access: yes, 2017
Hydraulic modelling is a primary tool to predict plant performance in future drier scenarios. However, as most tree models are validated under non-stress conditions they may fail when water becomes limiting.
Limousin, Jean Marc   +4 more
core   +2 more sources

Comprehensive Overview of Flood Modeling Approaches: A Review of Recent Advances

open access: yesHydrology, 2023
As one of nature’s most destructive calamities, floods cause fatalities, property destruction, and infrastructure damage, affecting millions of people worldwide. Due to its ability to accurately anticipate and successfully mitigate the effects of floods,
Vijendra Kumar   +4 more
doaj   +1 more source

Studies on the Thermal Behavior of an Electro-Hydrostatic Servo Actuator

open access: yesActuators
This paper presents a study on the thermal behavior of an electro-hydrostatic servo actuator designed to actuate the ailerons of an airliner. The considered servo actuator was designed using existing commercial off-the-shelf components (electric motor ...
Liviu Dinca   +4 more
doaj   +1 more source

Relationships between hydraulic traits and habitat preference for six Acer species occurring in the French Alps [PDF]

open access: yes, 2004
Xylem hydraulic properties and vulnerability to cavitation were studied in six Acer species which occur, in the French Alps, along a soil moisture gradient from the moist valleys to the drier mountain stands.
Lambs, Luc   +3 more
core   +3 more sources

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