Results 1 to 10 of about 14,444 (174)

Pajaritos Bridge Evaluation: a 50 year old concrete structure in an aggressive environment in the Gulg of Mexico

open access: yesRevista Ingeniería de Construcción, 2006
This investigation presents the results of the inspection performed on the Pajaritos Bridge as part of the activities for the Mexican bridge infrastructure evaluation project denominated National Plan for Bridge Corrosion Evaluation. This plan considers
Angélica del Valle   +3 more
doaj   +12 more sources

The application of a geostatistical information systems used for environmental-corrosion evaluation of bridge infraestructure in Mexico

open access: yesRevista Ingeniería de Construcción, 2005
This work presents an innovative method to determine the degree of bridge corrosion deterioration of the Federal Highway Network in Mexico, as a function of environmental factors such as prevailing climate where the bridge is located, bridge geographic ...
Andrés Torres Acosta   +4 more
doaj   +12 more sources

Tourism as a driver of economic and social development in underdeveloped regions

open access: yesRegional Science Policy &Practice, EarlyView., 2023
Abstract Cross‐border cooperations have been usually approached by developing trade agreements between international regions to upgrade their socioeconomic conditions and promote international tourism flows in territories. However, little attention has been paid to the role that tourist companies play in underprivileged territories highly dependent on ...
Rafael Robina‐Ramírez   +3 more
wiley   +1 more source

Durabilidad de mezclas de concreto con diferentes contenidos de ceniza volante activada

open access: yesRevista ALCONPAT, 2019
Este artículo describe propiedades referentes a la durabilidad de cinco mezclas de concreto con distintos contenidos de ceniza volante activada (CVA) y cemento portland tipo CPC 40.
Mariela Rendon Belmonte   +3 more
doaj   +1 more source

Weld acoustic emission inspection of structural elements embedded in concrete

open access: yesScience Progress, 2022
After a catastrophic failure of the weld of the anchoring element of one cable in a stayed bridge, a non-destructive inspection was required to evaluate the weld condition of the 111 remaining anchoring elements to prevent future and similar failures ...
Francisco J Carrion-Viramontes   +6 more
doaj   +1 more source

Impacto de la pandemia de COVID -19 en el sector del transporte pesado de carga: Empresas de la Provincia de Pichincha como caso de estudio

open access: yesRevista Tecnológica, 2022
La pandemia de COVID-19 ha causado estragos en todo el mundo, con profundas implicaciones económicas, medioambientales y sociales. La demanda del servicio de transporte terrestre de carga es un indicador de la situación económica de un país en ...
Jorge Chicaiza-Vaca   +2 more
doaj   +1 more source

Reaprovechamiento de residuos de demolición y construcción en la infraestructura de caminos

open access: yesEntretextos, 2016
Los nuevos retos a los que se enfrenta la ingeniería de caminos se encuentran estrechamente ligados a la optimización y ahorro de recursos materiales. El correcto reaprovechamiento de residuos nos dirige a lograr una construcción sustentable.
María Guadalupe López Domínguez   +3 more
doaj   +1 more source

Aktivierung von Metallkomplexen durch Ultraschallwellen für eine gezielte Krebstherapie

open access: yesAngewandte Chemie, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

Die Manifestation des elektrochemischen Potentialgradienten in der Elektrochemie

open access: yesAngewandte Chemie, EarlyView.
Die Überspannung stellt eine elektrochemische Potentialdifferenz an der Festkörper‐Flüssigkeits‐Grenzfläche dar, die sich auf unterschiedliche Weise manifestieren kann. Im Allgemeinen kann sie nicht nur die Reaktion entlang der Reaktionskoordinate antreiben, sondern auch die chemischen Potentiale in der erweiterten Umgebung modulieren, welche die ...
Sebastian Z. Oener   +10 more
wiley   +1 more source

Katalyse durch einen metastabilen, photoschaltbaren Käfig

open access: yesAngewandte Chemie, EarlyView.
Ein selbstassemblierter heteroleptischer Käfig entsteht durch die Isomerisierung eines photoschaltbaren Liganden in seine metastabile Z‐Isomerform (Z‐1) unter Einwirkung von grünem Licht, kombiniert mit einem nicht schaltbaren Liganden 2 und Palladium(II)‐Ionen.
Simona S. Capomolla   +6 more
wiley   +1 more source

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