Results 101 to 110 of about 96,224 (213)

Performance Assessment of a Centrifugal Pump With Varying Blade Counts and Fluid Viscosities Through Euler Head and Entropy Production Analysis

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
The centrifugal pump achieved optimal performance at lower viscosity with a minimal number of blades, as evidenced by reduced turbulent kinetic energy, leading to minimal energy loss and maximum efficiency, with the best operation observed using water and five blades.
Abubaker A. M. Mohammedali   +4 more
wiley   +1 more source

Analytical Modeling and Validation of Radial Stiffness in Zigzag‐Shaped Stents: Experimental and Numerical Approaches

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 113, Issue 4, April 2025.
ABSTRACT Stents and stent grafts (SGs) are used in many endovascular procedures. Clinical studies have revealed that radial stiffness (RS) in stents increases pressure on the artery wall, which can cause restenosis and, in some cases, require repeated intervention. This study aimed to validate an analytical model for calculating the RS of stents and SG
Moshe Brand, Nadav Sharon
wiley   +1 more source

Recommendation for Standardized Exam for Nasal Obstruction

open access: yesLaryngoscope Investigative Otolaryngology, Volume 10, Issue 2, April 2025.
ABSTRACT Introduction Nasal septal deviation, inferior turbinate hypertrophy, and nasal valve compromise are among the most common etiologies of NAO seen by facial plastic surgeons and otolaryngologists. Discussion While both validated and non‐validated scales and grading systems exist, they are inconsistently used.
Jordan Kai Simmons   +3 more
wiley   +1 more source

A size‐dependent model of strain gradient elastic laminated micro‐beams with a weak adhesive layer

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 105, Issue 4, April 2025.
Abstract A size‐dependent model for a laminated micro‐beam with a soft adhesive is developed in the framework of strain gradient elasticity theory. The layered beam is constituted by two Euler–Bernoulli strain gradient elastic isotropic beams, joined through a strain gradient spring‐type contact law at the adhesive level.
Michele Serpilli   +3 more
wiley   +1 more source

Statistical Survey of Fine‐Scale Auroral Structure at High Latitude: Evidence Consistent With Acceleration by Dissipative Non‐Linear Inertial Alfvén Waves

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract Relatively little is known about the causes of fine‐scale aurora with scale sizes of ∼1 ${\sim} 1$ km and less. We analyze images from the Auroral Structure and Kinetics (ASK) instrument, a multi‐monochromatic spectral imager located in the Norwegian High Arctic. We analyze five categories of fine‐scale aurora. The categories described in this
N. Brindley, D. Whiter, I. Gingell
wiley   +1 more source

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