Results 31 to 40 of about 317,894 (187)

Aceros ODS FeCrAl avanzados para aplicaciones estructurales de alta temperatura en sistemas de generación de energía

open access: yesRevista de Metalurgia, 2012
Las tecnologías y medios para desarrollar plantas de biomasa con alta eficiencia en la conversión de energía son esenciales para asentar la biomasa como una fuente de energía renovable.
G. Pimentel   +8 more
doaj   +1 more source

Optimización de una celda de flotación [PDF]

open access: yes, 2017
Flotation is one of the most used mineral concentration processes in the mining industry. Regarding the flotation process, there are three zones: agitation, intermediate and superior that are affected by the different hydrodynamic conditions of the ...
Pazmiño Carrillo, Bryan Paul
core  

Estimating Time‐Varying Productivity and Reference Points: A Case of North Sea Demersal Fish Stocks

open access: yesFish and Fisheries, Volume 26, Issue 5, Page 745-771, September 2025.
ABSTRACT The productivity of marine fish populations determines both maximum sustainable yield (MSY) and resilience to exploitation. While biological reference points like MSY and BMSY depend on species traits and population density, they are also influenced by environmental variability and ecological interactions.
Tobias K. Mildenberger   +5 more
wiley   +1 more source

Recent changes in the efficiency of vessels fishing for yellowfin tuna in the eastern Pacific Ocean [PDF]

open access: yes, 1962
ENGLISH: Since the inception of the Inter-American Tropical Tuna Commission in 1950, one of the primary tasks of its scientific staff has been the collection and analysis of the statistics of total catch, effort expended in obtaining this catch, and the ...
Broadhead, Gordon C.
core  

Efficiencies of and Motivations for Contracting Out in the Public Sector: The Case of Social Services in Spain

open access: yesPublic Administration, Volume 103, Issue 3, Page 693-706, September 2025.
ABSTRACT Debates on contracting out to the private sector is primarily focused on the cost efficiency of its provision, drawing on experiences with hard or technical services such as waste and water management. This paper focuses on a growing interest in the role and impact of sourcing decisions in softer or more human‐centered services, such as social
Danny Chow   +2 more
wiley   +1 more source

Reconciliando modularidad y eficiencia mediante atajos [PDF]

open access: yes, 1997
Se presenta en este artículo una propuesta para el desarrollo de programas eficientes en el marco de la programación con tipos abstractos de datos (TAD), con el objetivo de respetar la estructura modular de los programas propia de este ámbito.
Franch Gutiérrez, Javier   +1 more
core  

Chromosomal Inversion Associated With Diet Differences in Common Quails Sharing Wintering Grounds

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
A large chromosomal inversion in common quails (Coturnix coturnix) is associated with phenotypic traits. In a wintering population in southern Spain, we found all three karyotypes coexisting but showing differences in migratory behavior and diet, as exemplified by the isotopic signature.
Celia Vinagre‐Izquierdo   +4 more
wiley   +1 more source

DISPERSIÓN URBANA Y OFERTA HÍDRICA EN EL EJE CAFETERO COLOMBIANO

open access: yesGestión y Ambiente, 2012
Este artículo presenta una caracterización del estado de la oferta hídrica en el contexto de dispersión urbana, entendida como la propagación de una ciudad y de sus barrios hacia las zonas rurales periféricas, en el eje cafetero colombiano.
JUAN LEONARDO GONZÁLEZ   +2 more
doaj   +2 more sources

Espacio y desarrollo municipal en Bolivia [PDF]

open access: yes, 2011
This paper seeks to establish the factors related to the Human Development Index, incorporating the spatial dimension in the analysis of its determinants.
Evia, Tania, Nina, Osvaldo
core  

Limited evidence of biodiversity spillover from forest fragments into oil palm plantations in the Amazon

open access: yesJournal of Applied Ecology, Volume 62, Issue 8, Page 1939-1952, August 2025.
Converting primary forest into oil palm plantations results in substantial biodiversity losses, highlighting the urgent need to preserve the few remaining large forest fragments in the area. Measures that enhance matrix permeability are essential to conserving the evolutionary and functional integrity of Amazonian landscapes and mitigating the negative
Maira R. Cardoso   +4 more
wiley   +1 more source

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