Results 111 to 120 of about 9,689 (229)

Noise and Vibration Analysis of a Tri‐Lobe Compressor for Industry Application: A Finite Element and Campbell Diagram Approach

open access: yesEngineering Reports, Volume 8, Issue 8, August 2026.
Finite element and Campbell analyses evaluated noise and vibration in a tri‐lobe compressor. A critical speed of 243 rad/s due to backward whirl was identified. Modal and static results revealed vibration hotspots at flanges and lobe tips. Design optimization enhances structural integrity, reduces resonance risk, and minimizes noise emission.
P. Ashoka Varthanan   +4 more
wiley   +1 more source

Behaviour Identification in Farmed Red Deer (Cervus elaphus) Using Wearable Activity Collars

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 4, August 2026.
Wearable sensors such as accelerometers have shown promise in identifying a range of behaviours in ruminant livestock for welfare and production purposes. The research and production of wearables have primarily focused on delivering to the dairy and beef cattle industries.
Peter Green   +5 more
wiley   +1 more source

High prevalence of muscle stability deficits in semi‐professional football players—Adaptive Force assessment reveals selective impairment of holding capacity with preserved maximal strength: A cross‐sectional study

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, Volume 34, Issue 8, Page 2987-3001, August 2026.
Abstract Purpose Despite considerable research, strength screening has shown limited value for injury prediction. The concept of muscle stability assessed by Adaptive Force (AF) offers a distinct perspective—addressing neuromuscular holding capacity closer to injury‐prone motions rather than pushing strength.
Laura V. Schaefer   +4 more
wiley   +1 more source

Mandibular Movement Monitoring in Children With Neurodisability

open access: yesPediatric Pulmonology, Volume 61, Issue 8, August 2026.
ABSTRACT Background Obstructive sleep apnoea (OSA) in children is diagnosed using polysomnography (PSG), but children with neurodisability are >3 times more likely to not tolerate leads and sensors. The diagnostic accuracy of Sunrise, a small sensor applied to the chin, has not been assessed in this special population.
Andrew J. Collaro   +5 more
wiley   +1 more source

Control System for the Navigation of the Agricultural Robots: A Review

open access: yesJournal of Field Robotics, Volume 43, Issue 5, Page 3474-3505, August 2026.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía   +3 more
wiley   +1 more source

Flexible and Biocompatible Chitosan‐Based Hydrogel for Ambient Energy Harvesting

open access: yesSmall Structures, Volume 7, Issue 8, August 2026.
A high‐performance chitosan/glycerol hydrogel‐based electric nanogenerator with excellent mechanical robustness and scalability has been developed. Enabled by the synergistic interplay between water absorption and redox reactions, the device achieves a high electrical output that is readily scalable via series and parallel configurations for practical ...
Shuo Zhang   +13 more
wiley   +1 more source

Impacts of Particle Density and Relative Submergence on the Sediment Entrainment Process: An Experimental Study Using a Smart Sediment Particle

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Quantifying the hydrodynamic forcing associated with sediment entrainment at the threshold of motion remains a fundamental challenge because bed–particle contact reactions are rarely measured concurrently. We conducted controlled flume experiments using a freely moving Smart Sediment Particle equipped with an inertial measurement unit (IMU) to
Xin Lu   +5 more
wiley   +1 more source

Bidirectional Energy Transfer via Simultaneous Wave‐Particle Resonances in Inhomogeneous Space Plasmas

open access: yesAGU Advances, Volume 7, Issue 4, August 2026.
Abstract Wave‐particle resonance is a key mechanism for energy transfer in collisionless plasmas with important implications for wave excitation and particle acceleration. Cyclotron resonance occurs when a particle's gyromotion synchronizes with the wave fields, with their interactions usually describable by quasilinear diffusion or nonlinear trapping.
Jing‐Huan Li   +14 more
wiley   +1 more source

Statistical Survey of Cosmic Noise Absorption in Conjunction With Plasma Wave Measurements

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Using a decade of observations from the Canadian Geospace Observatory Riometer Network (GO‐RIO), we selected an east‐west subset of stations near L∼7 $L\sim 7$ to classify cosmic noise absorption (CNA) (a proxy for enhanced D‐region ionization) into two morphologies, simultaneous and drifting, based on the relative timing of signals across the
R. Ghaffari   +3 more
wiley   +1 more source

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