Transverse flow under oscillating stimulation in helical square ducts with cochlea-like geometrical curvature and torsion [PDF]
European journal of mechanics. B, Fluids, 2023 The cochlea, situated within the inner ear, is a spiral-shaped, liquid-filled organ responsible for hearing. The physiological significance of its shape remains uncertain.
N. Harte +4 more
semanticscholar +1 more source
Curvature measures and soap bubbles beyond convexity [PDF]
Advances in Mathematics, 2022 Extending the celebrated results of Alexandrov (1958) and Korevaar-Ros (1988) for smooth sets, as well as the results of Schneider (1979) and the first author (1999) for arbitrary convex bodies, we obtain for the first time the characterization of the ...
D. Hug, Mario Santilli
semanticscholar +1 more source
Search for the Stochastic Gravitational-wave Background Induced by Primordial Curvature Perturbations in LIGO’s Second Observing Run [PDF]
Astrophysical Journal Letters, 2020 Primordial density perturbations in the radiation-dominated era of the early universe are expected to generate stochastic gravitational waves (GWs) due to nonlinear mode coupling.
S. Kapadia +4 more
semanticscholar +1 more source
Defect-induced helicity dependent terahertz emission in Dirac semimetal PtTe2 thin films [PDF]
Nature Communications, 2023 Defect engineering of topological materials provides an avenue for the controllable manipulation of optoelectronic properties. Here, the authors introduce a defect gradient into a Dirac semimetal to control the Berry curvature dipole-driven THz emission ...
Zhong-Qiang Chen +20 more
semanticscholar +1 more source
Compact Objects in Alternative Gravities
Universe, 2022 We address neutron stars and black holes in alternative gravities, after recalling their basic properties in General Relativity. Among the plethora of interesting alternative gravities we here focus on an interesting set of scalar-tensor theories.
Jose Luis Blázquez-Salcedo +2 more
doaj +1 more source
The effect of curvature induced broken potential vorticity conservation on drift wave turbulences
Plasma Physics and Controlled Fusion, 2021 The correlation theory of turbulence suppression (Zhang and Mahajan 1993 Phys. Fluids B5 2000) by velocity shear was constructed by invoking the ansatz of potential vorticity conservation (PVC) that holds for relatively simple (slab) models of drift wave
Zhao-Yang Liu +2 more
semanticscholar +1 more source
New model for vortex-induced vibration of catenary riser [PDF]
, 2008 This paper presents a new theoretical model capable of predicting the vortex-induced vibration response of a steel catenary riser subject to a steady uniform current.
O'Brien, P. +2 more
core +3 more sources
Nature Nanotechnology, 2023 The Berry curvature dipole (BCD) is a key parameter that describes the geometric nature of energy bands in solids. It defines the dipole-like distribution of Berry curvature in the band structure and plays a key role in emergent nonlinear phenomena.
Siyu Duan +15 more
semanticscholar +1 more source
Quest for CMB spectral distortions to probe the scalar-induced gravitational wave background interpretation of pulsar timing array data [PDF]
Physical Review D, 2023 Gravitational Waves (GW) sourced by second-order primordial curvature fluctuations are among the favored models fitting the recent pulsar timing array (PTA) measurement of a stochastic GW background (SGWB).
M. Tagliazucchi +3 more
semanticscholar +1 more source
Analytical solution to contact characteristics for a variable hyperbolic circular-arc-tooth-trace cylindrical gear [PDF]
Mechanical Sciences, 2021 The variable hyperbolic circular-arc-tooth-trace (VH-CATT) cylindrical gear is a new type of gear. In order to research the contact characteristics of the VH-CATT cylindrical gear, tooth surface mathematical models of this kind of gear pair are derived ...
R. Guo +5 more
doaj +1 more source