Results 61 to 70 of about 10,784 (189)

Evaluation of fatigue damage in a pure copper with nonlinear three-wave interaction

open access: yesNihon Kikai Gakkai ronbunshu, 2016
We investigated nonlinear ultrasonic characterization, nonlinear three-wave interaction, of the pure copper during fatigue with EMAR (Electromagnetic Acoustic Resonance), which was the combination with ultrasonic resonance and non-contacting transducer ...
Yutaka ISHII   +3 more
doaj   +1 more source

Unveiling the Unprecedented Optical Properties of Citrate‐Stabilized Hollow AgAu Nanoshells Under Photothermal Irradiation

open access: yesSmall Science, Volume 6, Issue 1, January 2026.
When photothermally irradiated, hollow gold nanoshells prepared using silver nanoparticles as templates and stabilized by citrate, exhibit unexpected optical changes. The localized surface plasmon resonance is blueshifts, and more surprisingly, the surface‐enhanced Raman scattering intensity of an adsorbed analyte increases.
Gregory Q. Wallace   +9 more
wiley   +1 more source

Inter-tissue expression patterns of the key metabolic biomarker PGC-1α in severely obese individuals: Implication in obesity-induced disease

open access: yesHellenic Journal of Cardiology, 2019
Objective: PGC-1α is already known as a significant regulator of mitochondrial biogenesis, oxidative phosphorylation and fatty acid metabolism. Our study focuses on the role of PGC1α in morbid obesity, in five different tissues, collected from 50 ...
Konstantinos Balampanis   +10 more
doaj   +1 more source

Additive Manufacturing of Broadband Dielectric Resonator Antennas Using Graded Permittivity and Modal Analysis

open access: yesElectronics Letters, Volume 62, Issue 1, January/December 2026.
This study enhances the bandwidth of dielectric resonator antennas (DRAs) by introducing a linearly graded permittivity profile. Characteristic Mode Analysis reveals that this approach broadens the modal distribution and extends the dominant resonant mode bandwidth.
Romain Ammar   +8 more
wiley   +1 more source

El uso de la tecnología en el aula de matemáticas : diferencias de género desde la perspectiva de los docentes [PDF]

open access: yes, 2004
Desde 1997 la Secretaría de Educación Pública en México ha promovido el proyecto nacional EMAT (Enseñanza de las Matemáticas con Tecnología) usando computadoras y calculadoras TI-92 para apoyar la enseñanza de las matemáticas en la escuela secundaria ...
Butto, Cristianne   +3 more
core   +3 more sources

Clinical and genetic landscape of epilepsies with absence seizures and single‐gene etiology

open access: yesEpilepsia, Volume 67, Issue 1, Page 272-290, January 2026.
Abstract Objective To characterize the clinical, electroencephalographic, and genetic features of epilepsies featuring absence seizures within monogenic etiology, highlighting the diagnostic, treatment and prognostic implications. Methods We conducted a retrospective, multicenter study including patients with monogenic epilepsies and ...
Simona Balestrini   +50 more
wiley   +1 more source

Mode control of guided wave in magnetic hollow cylinder using electromagnetic acoustic transducer array

open access: yesNuclear Engineering and Technology, 2015
The aim of this work is to demonstrate a method for exciting and receiving torsional and longitudinal mode guided waves with an electromagnetic acoustic transducer (EMAT) ring array. First of all, a three-dimensional guided wave simulator is developed in
Akinori Furusawa   +2 more
doaj   +1 more source

Anderson Localization in Disordered Vibrating Rods

open access: yes, 2012
We study, both experimentally and numerically, the Anderson localization phenomenon in torsional waves of a disordered elastic rod, which consists of a cylinder with randomly spaced notches.
Flores, J.   +5 more
core   +2 more sources

Genetic complexity in pediatric onset epilepsy‐movement disorder syndromes: Insights from a cohort of 97 subjects

open access: yesEpilepsia, Volume 67, Issue 1, Page 299-314, January 2026.
Abstract Objective Conditions presenting with both epilepsy and movement disorders (EPIMDs) range from relatively benign cases to severe developmental encephalopathies. However, the full clinical and genetic spectrum still needs to be better defined.
Davide Caputo   +15 more
wiley   +1 more source

Effect of Coil Configuration on Conversion Efficiency of EMAT on 7050 Aluminum Alloy

open access: yesEnergies, 2017
Compared to traditional ultrasonic detection methods, the electromagnetic acoustic transducer (EMAT) technique can be applied in many hostile environments such as elevated temperatures, on-line inspections, etc.
Yunxin Wu   +4 more
doaj   +1 more source

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