Results 11 to 20 of about 136,664 (227)

Solar photovoltaic coupled with compressed air energy storage: A novel method for energy saving and high quality sprinkler irrigation

open access: yesAgricultural Water Management, 2023
The instability of photovoltaic output leads to pressure fluctuations, and the high investment, low water head of traditional energy storage and pressure regulation measures have seriously limited the application of solar powered sprinkler irrigation ...
Qianwen Zhang   +6 more
doaj   +1 more source

Modelling of two-component turbulent mass and heat transfer in air-fed pressurised suits [PDF]

open access: yes, 2011
This article has been accepted for publication in the Flow, Turbulence and Combustion journal.In this paper the modelling of an important industrial problem is addressed, which involves the two-component turbulent flow with heat transfer that takes place
Atherton, MA   +4 more
core   +1 more source

Perda de carga em microtubos e conectores utilizados em microaspersão Head loss in microtubes and connectors used in microsprinkler systems

open access: yesEngenharia Agrícola, 2009
Este trabalho foi desenvolvido com o objetivo de ajustar equações que estimam a perda distribuída de carga em microtubos utilizados em microaspersão e a perda localizada de carga na passagem lateral do fluxo por meio dos conectores na linha lateral.
Danieli B. Zitterell   +3 more
doaj   +1 more source

The HPx software for multicomponent reactive transport during variably-saturated flow: Recent developments and applications [PDF]

open access: yes, 2018
HPx is a multicomponent reactive transport model which uses HYDRUS as the flow and transport solver and PHREEQC-3 as the biogeochemical solver.
Jacques, Diederik   +3 more
core   +2 more sources

Perda de carga localizada em emissores não coaxiais integrados a tubos de polietileno Local head loss for uncoaxial drippers inserted in polyethylene pipes

open access: yesEngenharia Agrícola, 2009
Este trabalho apresenta os resultados de experimento conduzido para avaliar as perdas de carga localizadas em gotejados não coaxiais integrados a tubos de polietileno.
Osvaldo Rettore Neto   +3 more
doaj   +1 more source

Dataset on modelling natural surfactant adsorption derived from non-edible seed oil (linseed oil) on sandstone reservoir rock

open access: yesData in Brief, 2023
Surfactant flooding is adjudged one of the most promising chemicals enhanced oil recovery (cEOR) methods due to its high microscopic sweep efficiency.
Kehinde Awelewa   +6 more
doaj   +1 more source

Fluctuating-friction molecular motors [PDF]

open access: yes, 2001
We show that the correlated stochastic fluctuation of the friction coefficient can give rise to long-range directional motion of a particle undergoing Brownian random walk in a constant periodic energy potential landscape.
  +20 more
core   +3 more sources

Nighttime oxidation of surfactants at the air–water interface: effects of chain length, head group and saturation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Reactions of the key atmospheric nighttime oxidant NO3 with organic monolayers at the air–water interface are used as proxies for the ageing of organic-coated aqueous aerosols.
F. Sebastiani   +5 more
doaj   +1 more source

An Experimental Study and Mathematical Modeling of Vibration Transfer in Pistachio Trees Using an Inertia-Type Trunk Shaker and Field-Adapted Wireless Sensors

open access: yesShock and Vibration, 2022
Trunk shakers are the most widely used mechanical harvesting machines for harvesting nut trees, including pistachio in California. Improvement of these machines requires a better understanding of the shaking dynamics of the existing trunk shakers during ...
Ruijun Ma   +4 more
doaj   +1 more source

Numerical and experimental design study of a regenerative pump [PDF]

open access: yes, 2010
This paper presents the use of a commercial CFD code to simulate the flow-field within the regenerative pump and compare the CFD results with new experimental data.
Quail, Francis J.   +2 more
core   +1 more source

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