Results 151 to 160 of about 329,610 (317)

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

DISEÑO Y CONSTRUCCIÓN DE UN SISTEMA PARA EXAMEN NO DESTRUCTIVO DE FALLAS Y DEFECTOS EN METALES UTILIZANDO SEÑALES ULTRASÓNICAS DESENHO E CONSTRUÇÃO DE UM SISTEMA PARA A INSPEÇÃO ÑAO DESTRUCTIVA DE FALHAS E DEFEITOS EM METALS USANDO SINAIS ULTRASSÔNICOS DESIGN AND CONSTRUCTION OF A SYSTEM FOR NON-DESTRUCTIVE INSPECTION OF FAULTS AND DEFECTS IN METALS USING ULTRASONIC SIGNALS

open access: yesRevista EIA, 2009
En el presente artículo se describe el diseño y construcción de un sistema electrónico para examen no destructivo con ultrasonido (ENDU), que es una de las técnicas más utilizadas para evaluar sin deteriorar piezas metalmecánicas en diversas áreas de la ...
Jairo Rodríguez   +3 more
doaj  

Numerical optimisation of piezocomposite material properties using 3D finite - element modeling [PDF]

open access: yes, 2009
1-3 connectivity piezoelectric ceramic composite materials are commonly used as the active layer of ultrasonic transducer arrays in many applications.
Ramadas, Sivaram Nishal   +3 more
core  

Uncovering G Protein‐Coupled Receptors: Novel Targets and Biomarkers for Predicting Glioma Prognosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Low‐grade gliomas (LGG) exhibit significant heterogeneity and recurrence risk. G protein‐coupled receptors (GPCR) contribute to glioma malignant progression, but their prognostic value remains unclear. This work attempts to formulate a GPCR‐based outcome‐predicting model for LGG. Methods Based on TCGA LGG data, the enrichment scores
Jun Yang   +4 more
wiley   +1 more source

Cryogenic pressure transducer [PDF]

open access: yes, 1969
Cryogenic pressure transducer utilizes a diaphragm which is electron beam welded to a fitting. This assembly is then heliarc welded to the main body of the transducer.
Hendrix, J. M.
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Transducer Systems and Their Applications [PDF]

open access: yes, 2017
This thesis defines a new formal model „transducer system." Transducer system is composed of a number of finite transducers, which cooperate.
Lupták, Filip
core  

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

open access: yesAdvanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann   +2 more
wiley   +1 more source

Modern State and Prospects of Using Piezoelectric Transducers in Mobile Machine Design

open access: yesМеханика машин, механизмов и материалов, 2019
The article describes the current level of piezoelectric transducers development based on ceramics, composite and film materials, their design features, advantages, and disadvantages.
Dmitry I. Bochkaryov, Dmitry S. Pupachou
doaj  

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