Results 51 to 60 of about 58,991,248 (234)

Minas de carbón del Bierzo

open access: yes, 1914
Minas de carbón del ...
Heredia Loring, Julio
core  

Proyecto de talla en carbón. [PDF]

open access: yes, 2000
75 hojas.El proyecto de talla en carbón surge de una serie de convenios desarrollados desde principios de los 90 entre MINERCOL y Artesanías de Colombia, con el objeto de proporcionar al niño minero alternativas productivas para la sustitución de su ...
Benavides, Ernesto Orlando, director proyecto
core  

Sustainability Assessment of Micro, Small, and Medium Enterprises: A Systematic Review and Hybrid Architecture for Credible, Salient, and Legitimate Knowledge Governance

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Sustainability assessment advances corporate social responsibility toward inclusive development. Widely recognized approaches prove inadequate for micro, small, and medium enterprises (MSMEs), resulting in fragmented proliferation that hinders cumulative knowledge.
Luísa Couto Gonçalves de Souza   +2 more
wiley   +1 more source

Recuperación económica de cuencas mineras y arqueología industrial. El caso de Sabero, León/España

open access: yesInformes de la Construccion, 1997
Durante 1992-1993, la Diputación Provincial de León participó en el programa Ouverture de la Unión Europea para la recuperación económica y medioambiental de cuencas mineras.
Miguel Celemin Matachana   +1 more
doaj   +1 more source

Minas de carbón de Bella-Vista

open access: yes, 1909
Minas de carbón de Bella ...
Pintado Carranza, Francisco
core  

Informe sobre los yacimientos carboníferos de la Cordillera Oriental [PDF]

open access: yes, 1929
Colombia es sin duda alguna el país mas rico en carbón de la América del Sur. En el Congreso Internacional de Toronto (Canadá) se calculó que la existencia de carbón en la América del Sur ascendía a32 mil millones de tons., de las cuales correspondía a ...
Castro, José María
core  

Unlocking Hydrokinetic Energy in the Brazilian Amazon: A Statistical Resource Assessment and Economic Feasibility Analysis

open access: yesEnergy Science &Engineering, EarlyView.
This study develops a spatial and technical framework to evaluate hydrokinetic energy potential in the Amazon as a sustainable alternative to diesel‐based systems. By modeling regional resources, we demonstrate that hydrokinetic sources offer a cleaner, economically competitive solution for displacing fossil fuels in remote riverine communities ...
Ana Cláudia Pinto Ferraz   +4 more
wiley   +1 more source

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+2 more sources

Condiciones de trabajo y morbilidad entre mineros del carbón en Guachetá, Cundinamarca: la mirada de los legos

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2015
Introducción. En Colombia, la investigación sobre las condiciones de trabajo y salud en la minería carbonífera es escasa y no toma en consideración la percepción de la población expuesta y sus comportamientos frente a los riesgos inherentes.
Claudia P. Jiménez-Forero   +2 more
doaj   +1 more source

Combustion Properties of Timber in Historic Structures: Case Study of the São Pedro de Alcântara Chapel Fire

open access: yesFire and Materials, EarlyView.
ABSTRACT Timber plays a fundamental role in the fire performance of historic building components, where ageing and environmental exposure can markedly influence its physical and chemical properties. This study presents an experimental investigation of the fire behaviour of Ocotea sp.
João Vitor Lopes Ferreira   +4 more
wiley   +1 more source

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