Results 221 to 229 of about 1,894 (229)

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

open access: yesAdvanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie   +3 more
wiley   +1 more source

Unusual presentation of bezoars and foreign body insertion in the breast as a self-harm behavior: a case report. [PDF]

open access: yesAnn Med Surg (Lond)
Rehman IU   +9 more
europepmc   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri   +11 more
wiley   +1 more source

Apparent treatment-resistant hypertension in ambulatory hypertensive patients in Northeast Ethiopia: prevalence, treatment patterns, and predictors. [PDF]

open access: yesBMC Cardiovasc Disord
Hassen M   +8 more
europepmc   +1 more source

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