Results 71 to 80 of about 25,413,363 (252)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

The Effect of Exercise to P Wave Dispersion and Its Evaluation as a Predictor of Atrial Fibrillation

Annals of Noninvasive Electrocardiology, 2003
Aim: Prolongation of P wave time and increase of its dispersion as an independent predictor of atrial fibrillation. In patients with paroxysmal atrial fibrillation (PAF) as in healthy people, exercise augments sympathetic activity and therefore can cause
Zerrin Yiğit, Hülya Akdur, Murat Ersanli, Bariş Ökçün, Özen Güven   +4 more
doaj   +1 more source

The effects of iron deficiency anemia on p wave duration and dispersion

Clinics, 2010
OBJECTIVES: The association between P wave dispersion and iron deficiency anemia has not been documented in the literature. In this study, we evaluated P wave dispersion in patients with iron deficiency anemia and the possible relationships between P ...
Hakki Simsek, Yilmaz Gunes, Cengiz Demir, Musa Sahin, Hasan Ali Gumrukcuoglu, Mustafa Tuncer   +5 more
doaj   +1 more source

P-wave dispersion in patients with premature ejaculation

Archivio Italiano di Urologia e Andrologia
Background: Premature ejaculation (PE) is one of the common male sexual disorders and is associated with autonomic nervous system imbalance. P-wave dispersion (PWD), a marker of atrial electrical heterogeneity and a predictor of atrial arrhythmias, has not been previously investigated in the PE population.
Ali Akkoç, Can Ramazan Öncel, Cemal Köseoğlu   +2 more
openaire   +3 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

A Blueprint for Ocean Energy Development 2010-2015 [PDF]

In an effort to foster a collaborative approach to advancing the ocean energy industry, OWET convened the OWET 2010 Developersʼ Summit on September 27 and 28, 2010 in Portland, Oregon.
Oregon Wave Energy Trust
core   +6 more sources

DISPERSIÓN DE LA ONDA P INCREMENTADA EN FUTBOLISTAS DE ALTO RENDIMIENTO Y SU RELACIÓN CON EL TIEMPO DE PRÁCTICA DEPORTIVA / Increased P wave dispersion in high performance soccer players and its relationship with sport practice time [PDF]

CorSalud, 2013
Resumen: Introducción y objetivos: La dispersión de la onda P y su máxima duración se han vinculado con el riesgo incrementado para desarrollar fibrilación auricular. Estas variables han sido escasamente estudiadas en deportistas de elite.
Elibet Chávez González, Yaniel Castro Torres, Leonardo Pérez González, Magda A. Rabassa López–Calleja, Janny Monzón León, Reinaldo Ramos Martín, Raimundo Carmona Puerta   +6 more
doaj  

Physiological Values of P-Wave Dispersion in Silesian Breed Horses and Polish Primitive Horses

Journal of Veterinary Research, 2013
Electrocardiographic examinations were performed on 45 Silesian breed horses (group K, 3-16-year-old, 16 stallions, 29 mares) and on 25 Polish Primitive breed horses (group P, 1.5-19-year-old, two stallions, six geldings, 17 mares).
Michlik Katarzyna, Noszczyk-Nowak Agnieszka, Pasławska Urszula, Janus Izabela, Nicpoń Józef   +4 more
doaj   +1 more source