Results 161 to 170 of about 318,853 (271)
Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás +5 more
wiley +1 more source
Design of an Angled Single-Excitation Elliptical Vibration System. [PDF]
Liu Q, He X, Wang W, Yang Y.
europepmc +1 more source
ABSTRACT Increased social media gambling advertising raises concerns about its strong appeal to children and its role in gambling‐related harm. This study examines whether gambling content marketing is more emotionally appealing and less recognizable as advertising than conventional social media gambling ads, and whether a widely used UK school‐based ...
Raffaello Rossi +2 more
wiley +1 more source
Hybrid artificial intelligence architectures for automatic text correction in the Kazakh language. [PDF]
Baitenova L +4 more
europepmc +1 more source
Kinetic Compensation of Barrel Launch Under High‐Speed Solid‐Phase Particulate Impacts
ABSTRACT An accurate launch‐dynamics computational method is critical for barrel weapon service life assessment and multiphase physics field refinement. Given the lack of studies on the solid‐phase buildup behavior at the projectile base, this paper provides an improved method for calculating the launching dynamics under high pressure and high speed ...
Zhiyi He +3 more
wiley +1 more source
Design of a Novel Electromagnetic Ultrasonic Transducer for Stress Detection. [PDF]
Chen C, Xu C, Yang G, Ma Y, Yang S.
europepmc +1 more source
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari +3 more
wiley +1 more source
Single-Mode Ring Resonator-Based Optomechanical Transducers for Advanced Atomic Force Sensing. [PDF]
Zhang Y +7 more
europepmc +1 more source
ABSTRACT Hydraulic manipulators exhibit strong coupling, pronounced nonlinearities, and significant modeling uncertainties, which hinder high‐precision motion control. This paper proposes a finite‐time disturbance observer–based nonlinear robust adaptive control (RAC‐FTDO) framework enhanced by a physically consistent dynamic parameter identification ...
Tianyu Gao +3 more
wiley +1 more source

