Results 11 to 20 of about 82,577 (168)

Evaluating Youth Participatory Action Research in the Americas: Comparative Insights on Empowerment, Methodologies, and Social Change. [PDF]

open access: yesJ Adolesc
ABSTRACT Introduction Youth Participatory Action Research (YPAR) positions adolescents as co‐researchers to investigate and address social issues affecting their lives. While YPAR has gained global prominence, comparative research examining how it is conceptualized and practiced across regional contexts remains limited.
Diaz J   +5 more
europepmc   +2 more sources

Modelling Magnetorheological Dampers in Preyield and Postyield Regions

open access: yesShock and Vibration, Volume 2019, Issue 1, 2019., 2019
The use of magnetorheological dampers has rapidly spread to many engineering applications, especially those related to transportation and civil engineering. The problem arises upon modelling their highly nonlinear behaviour: in spite of the huge number of apparently accurate models in the literature, most fail when considering the overall ...
E. Palomares   +5 more
wiley   +1 more source

Machine Fault Detection Based on Filter Bank Similarity Features Using Acoustic and Vibration Analysis

open access: yesMathematical Problems in Engineering, Volume 2016, Issue 1, 2016., 2016
Vibration and acoustic analysis actively support the nondestructive and noninvasive fault diagnostics of rotating machines at early stages. Nonetheless, the acoustic signal is less used because of its vulnerability to external interferences, hindering an efficient and robust analysis for condition monitoring (CM).
Mauricio Holguín-Londoño   +6 more
wiley   +1 more source

A flexible platform for wireless sensor nodes intended to measure bridges vibrations

open access: yesRevista Elektrón, 2020
Traditional wireless sensor networks work with scalar data like temperature o humidity because they have strong restrictions on bandwidth and energy consumption. Nevertheless, in recent years, technological advances have permitted a significant growth in
Rosa Marina Corti   +5 more
doaj   +1 more source

DISEÑO DE AMORTIGUADOR DE MASA SINTONIZADO PARA PUENTE

open access: yesRevista Centro Azúcar, 2023
Introducción: El deterioro y colapso de estructuras que son sometidas a cargas periódicas, como los puentes de ferrocarril, ocasionan daños económicos al país.
César A. Chagoyen Méndez   +5 more
doaj  

Comparacion de tecnicas de vibracion transversal y longitudinal en la obtencion del modulo de elasticidad dinamico [PDF]

open access: yes, 2000
126 p.En esta memoria se comparo de manera preliminar, dos técnicas no destructivas, alternativas a los métodos estáticos tradicionales, las cuales permiten la determinación del modulo de elasticidad dinámico, haciendo uso de las propiedades ...
Bravo Rojas, Gonzalo Andres   +1 more
core  

Análisis vibrodinámico de motores eléctricos [PDF]

open access: yesIngeniería Mecánica, 2010
El artículo aborda el estudio vibrodinámico ejecutado en motores eléctricos de la fábrica de azúcar “Cristino Naranjo” durante la implementación del mantenimiento predictivo.
Roberto Manuel Torres-Rodríguez   +1 more
doaj  

Vibraciones generadas por voladuras en obras subterráneas. Casos de estudio en Colombia

open access: yesMinería y Geología, 2023
Se exponen en este artículo resultados obtenidos por la compañía PetroBlast S.A.S. durante el control de daño de las vibraciones generadas por voladuras entre túneles y galerías adyacentes, como parte de los casos de estudio.
Humberto Pinto-Morales   +1 more
doaj  

Monitoring and control of vibrations due to blasting in Sumapaz tunnel, granting Bogotá-Girardot

open access: yesIngeniería Investigación y Desarrollo, 2013
This article discusses the most relevant topics of the subject of vibration of the ground, from its generation and monitoring to the control of their effects.
Luis Humberto Pinto-Morales   +2 more
doaj   +1 more source

Mantencion sintomatica en equipos industriales mediante el analisis vibracional [PDF]

open access: yes, 1988
255 p.El presente trabajo se elaboro recopilando antecedentes teóricos y prácticos sobre la materia de Análisis Vibracional en equipos industriales. En su parte medular, se definen cada uno de los temas que componen el estudio de las vibraciones.
Bastias Ferrada, Carlos (Prof. Guía)   +1 more
core  

Home - About - Disclaimer - Privacy