Results 71 to 80 of about 1,181,239 (240)

Relationship Between a Heavy Rainfall and Gravity Wave in Sichuan Basin

open access: yes应用气象学报
Based on ERA5 reanalysis data, GPM precipitation data and WRF model, a synoptic dynamic analysis and numerical experiment are conducted to analyze gravity wave characteristics of a heavy rainfall in Sichuan Basin on 2 July and 3 July in 2023, in order to
Xu Yizhou   +4 more
doaj   +1 more source

On the possibility of wave-induced chaos in a sheared, stably stratified fluid layer [PDF]

open access: yesNonlinear Processes in Geophysics, 1994
Shear flow in a stable stratification provides a waveguide for internal gravity waves. In the inviscid approximation, internal gravity waves are known to be unstable below a threshold in Richardson number.
W. B. Zimmermann, M. G. Velarde
doaj  

Nanoparticle‐Mediated Bubble Suppression During Droplet Solidification for Mechanical Reinforcement

open access: yesAdvanced Science, EarlyView.
Nanoparticles mediate droplet solidification by raising nucleation temperature, refining dendrites, and slowing freezing‐front advance, thereby suppressing trapped air bubbles in droplet‐based 3D printing. This strategy reduces bubble volume fraction by ∼35% and increases compressive strength by up to 39%, offering a low‐cost route to stronger printed ...
Runmiao Gao   +10 more
wiley   +1 more source

Active Disturbance Rejection Control of Horizontal-Axis Wind Turbines [PDF]

open access: yes, 2017
. Wind turbines are complex nonlinear machines whose main objective is to convert the wind energy into electric power. These systems work in two main operating regions.
Coral-Enriquez, Horacio
core  

Drop‐Location‐Insensitive Droplet‐Based Electricity Generator Using Polydimethylsiloxane Slippery Covalently Attached Liquid Coatings

open access: yesAdvanced Science, EarlyView.
Drop‐location sensitivity remains a key barrier to practical droplet‐based electricity generators (DEGs). Here, a polydimethylsiloxane slippery covalently attached liquid (PDMS‐SCAL)‐coated interface promotes droplet sliding instead of splitting or bouncing, allowing stable electricity generation from randomly falling raindrops. The resulting PDMS‐SCAL‐
Jung Bin Yang   +6 more
wiley   +1 more source

Plate and faults boundary detection using gravity disturbance and Bouguer gravity anomaly from space geodesy

open access: yes, 2020
Nowadays, satellite technology has developed significantly. Geodesy satellites such as Grace and Grace-FO can be used for subsurface mapping. The mapping is in the form of detection of the plate details, faults, and regional geodynamic conditions.
Suhadha, Argo Galih   +5 more
core   +1 more source

A Magnetic‐Driven Self‐Rotation‐Stabilized Miniature Swimming Robot

open access: yesAdvanced Science, EarlyView.
Inspired by the stable rotational descent of seeds in nature, this study designs a magnetic‐driven self‐rotation‐stabilized miniature swimming robot (MSMSR). Based on a resonance‐driven strategy, the robot exhibits high swimming performance, offering enhanced directional swimming and improved resistance to water flow disturbances compared to existing ...
Fujun Wang   +4 more
wiley   +1 more source

Weak Nonlinear Double Diffusive Magneto-Convection in a Newtonian Liquid under Gravity Modulation

open access: yesJournal of Applied Fluid Mechanics, 2015
A theoretical analysis of thermo-convective instability in an electrically conducting two component fluid layer is carried out when the gravity field vary with time in a sinusoidal manner.
B. S. Bhadauria, Palle Kiran
doaj  

GEOMAGNETIC NEAR FIELD DISTURBANCES AS GENERATED BY THE JANUARY 15, 2022 UNIQUE EXPLOSION OF THE TONGA VOLCANO [PDF]

open access: yesRadio Physics and Radio Astronomy
Subject and Purpose. The January 15, 2022 explosion of the Tonga volcano, unique in its power, led to significant disturbances of the Earth’s subsystems, including the lithosphere and the World Ocean — atmosphere — ionosphere — magnetosphere system, plus
L. F. Chernogor
doaj   +1 more source

Investigation on the dynamics of gravity-driven coastal currents [PDF]

open access: yes
Numerical simulations of buoyant, gravity-driven coastal plumes are summarized and compared to the inviscid geostrophic theory of Thomas & Linden (2007) and to laboratory studies for plumes owing along a vertical-wall coastline (those of Thomas ...
Gregorio, S. O. (Sandy O.)
core  

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