Results 1 to 10 of about 168,221 (169)

Feasibility of Soil Texture Determination Using Acoustic Signal Processing of a Cone Penetrometer [PDF]

open access: yesJournal of Agricultural Machinery, 2023
IntroductionPrecision agriculture is a modern approach to farming that ensures the crops and soil receive exactly what they need for optimum health and productivity.
J. Nasrollahi Azar   +2 more
doaj   +1 more source

An Affordable Acoustic Measurement Campaign for Early Prototyping Applied to Electric Ducted Fan Units

open access: yesFluids, 2023
New innovative green concepts in electrified vertical take-off and landing vehicles are currently emerging as a revolution in urban mobility going into the third dimension (vertically).
Stefan Schoder   +4 more
doaj   +1 more source

Characterization of landslides: a vertical electrical sounding approach

open access: yesGeoscience Letters, 2023
AbstractThe high groundwater activity typically found in landslide bodies favors electrical resistivity methods to characterize the subsurface of landslides. The more water present, the more the current injection into the ground and thus greater the depth of penetration.
W. A. P. P. Christopher   +3 more
openaire   +2 more sources

Development of Tolerance-Based Performance Prediction Technology and Optimization of Actuator Design Factors of a Magnet Vertical Magnetization of AVAS

open access: yesApplied Sciences, 2021
With the increasing proliferation of electric and hydrogen vehicles, noises to recognize the driving status at low speeds are legalized, so a virtual engine sound generator is required, and slimming is required for packaging it in vehicles.
Hyun-Ju Lee, Dong-Shin Ko, Deog-Jae Hur
doaj   +1 more source

Geo-electrical investigation of ground water potential using vertical electrical sounding

open access: yesWorld Journal of Advanced Research and Reviews, 2022
Groundwater potential assessment using the vertical electrical sounding (VES) technique was carried out at Ekiti state Southwestern, Nigeria with a view to solving the problem of incessant failure of groundwater boreholes in the study area. A total of 10 VES were carried-out using Schlumberger electrode configuration.
Adesunloro   +3 more
openaire   +1 more source

Ionospheric effects of the shock wave generated by the explosion of the Tonga volcano on January 15, 2022.

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Background. Volcanoes belong to high-energy sources capable of causing significant disturbances in all subsystems of the Earth – atmosphere – ionosphere – magnetosphere (EAIM) system.
L. F. Chernogor   +2 more
doaj   +1 more source

A confirmation of vertical acoustic resonance and field-aligned current generation just after the 2022 Hunga Tonga Hunga Ha’apai volcanic eruption

open access: yesEarth, Planets and Space, 2022
A strong volcanic eruption caused a clear vertical acoustic resonance between the sea surface and the thermosphere. Its effects are observed as geomagnetic and GPS-TEC oscillations near the volcano and its geomagnetic conjugate area.
Toshihiko Iyemori   +3 more
doaj   +1 more source

The model 3D of aquifer using vertical electrical sounding (VES) method [PDF]

open access: yesAIP Conference Proceedings, 2021
University of Bengkulu (UNIB) is an area that is located geologically close to the beach, causing aquifers located around campus is still influenced by seawater. This is indicated by several wells containing brackish water. The objective of this research is to map the thickness of the aquifer layer suspected of being intruded by seawater using ...
null Suhendra   +3 more
openaire   +1 more source

Backscatter of Electromagnetic Waves from a Rough Layer [PDF]

open access: yes, 1966
Backscatter of electromagnetic waves from rough ...
Durrani, S. H.   +2 more
core   +2 more sources

Groundwater Prospecting Using Combined Vertical Electrical Sounding and Borehole Performance [PDF]

open access: yesLAUTECH Journal of Civil and Environmental Studies, 2020
This study aimed to determine the prospect of groundwater in Afe Babalola University, Ado-Ekiti(ABUAD); result of which will inform of the possibility of getting sufficient water underground. Geophysical survey was carried out in the study area and complemented with performance of an existing borehole.
S.O Oyegoke   +3 more
openaire   +1 more source

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