Results 51 to 60 of about 666,855 (310)
Ingeniería y Ciencia, 2012 Se llevó a cabo una evaluación a escala real de las condiciones de mezcla y su influencia sobre la calidad del agua en un tanque de compensación del sistema de distribución de agua potable de la ciudad de Cali (Colombia).
C Montoya +4 more
doaj +1 more source
Impact of Global Warming in Subtropical Climate Buildings: Future Trends and Mitigation Strategies
Energies, 2020 The growing concern about global climate change extends to different professional sectors. In the building industry, the energy consumption of buildings becomes a factor susceptible to change due to the direct relationship between the outside temperature
Marta Videras Rodríguez +3 more
doaj +1 more source
Plan de gestión ambiental para el establecimiento penitenciario y carcelario del municipio de Pereira [PDF]
, 2009 En la medida en que la protección del medio ambiente se convierte en uno de los retos más importantes para la humanidad la gestión ambiental se hace necesaria, puesto que, a través de esta y sus instrumentos se garantiza la administración y uso racional ...
Bedoya Ramos, Erika Jazmín +1 more
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Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source
Nuevos Fundamentos de Racionalidad Ambiental a partir del Análisis Epistemológico de la Evaluación de Impacto Ambiental [PDF]
, 2005 La determinación de un impacto ambiental constituye un paso clave para la preservación del ambiente y el control ambiental de las actividades humanas.
March, Juan Manuel
core +1 more source
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Microbiome, 2022 Background The microbial community composition of urban environments is primarily determined by human activity. The use of metagenomics to explore how microbial communities are shaped in a city provides a novel input that can improve decisions on public ...
Cecilia Salazar +12 more
doaj +1 more source
Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures
Advanced Engineering Materials, EarlyView.This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley +1 more source
Revista Peruana de Biología, 2014 En este trabajo se hizo el análisis morfológico y molecular a 28 caracoles terrestres de Megalobulimus oblongus, colectados en diferentes departamentos de Colombia, depositados en una colección de referencia.
Erika Jaramillo Roldán +3 more
doaj +1 more source
'Compromisos ambientales necesitan una regulación' [PDF]
, 2018 En Colombia no existe un mecanismo de control para la responsabilidad empresarial ambiental, según explico Sergio Tobón, director de Desarrollo Social de Proantioquia.
Redacción el Tiempo - Medellín
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