Results 11 to 20 of about 196,613 (175)

Operación de un filtro anaerobio de flujo ascendente (FAFA) hasta alcanzar el estado estable [PDF]

open access: yes, 2006
En el presente proyecto se va a desarrollar y a evaluar la puesta en marcha y el comportamiento del Filtro Anaerobio de Flujo Ascendente, hasta alcanzar su estado estable, en el tratamiento de las vinazas del Laboratorio de Procesos Productivos de la Universidad Nacional de Colombia, Sede Manizales.
Parra Rodríguez, Lina Marcela
openaire   +2 more sources

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

open access: yesEcology, Volume 104, Issue 5, May 2023., 2023
Abstract Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of
Yasmín Quintana   +2 more
wiley   +1 more source

Urban–rural continuum: an overview of their interactions and territorial disparities

open access: yesRegional Science Policy &Practice, Volume 15, Issue 4, Page 729-768, May 2023., 2023
Abstract This study provides a quantitative analisis of the interactions between urban and rural areas and related territorial disparities in the European Union (EU). Relevant societal themes such as population changes, access to services, broadband internet connectivity, house prices, tourism and land‐use/cover flows are examined by mean of indicators
Carolina Perpiña Castillo   +8 more
wiley   +1 more source

Skill‐Relatedness and Regional Economic Development in Spain during the International Crisis and the Post‐Crisis Period

open access: yesPapers in Regional Science, Volume 101, Issue 3, Page 573-602, June 2022., 2022
Abstract The aim of this research was to study the influence of related variety on the economic performance of Spanish provinces during the international crisis (2009–2013) and the post‐crisis period (2014–2018), with the goal of contributing to assess the validity of the skill‐relatedness approach.
Simón Sánchez‐Moral   +2 more
wiley   +1 more source

Validación del coeficiente de rugosidad de Manning en un canal a flujo libre bajo condición de flujo uniforme [PDF]

open access: yes, 2020
Los procedimientos de diseño de canales a flujo libre y uniforme frecuentemente implican considerar coeficientes de la literatura, obviando el hecho que estos podrían diferir al cambiar la zona de estudio.
Sánchez, Jenifer D.   +3 more
core   +1 more source

Operaciones de Flujo de Fluidos. Tema 6: Flujo externo [PDF]

open access: yes, 2011
Flujo externo. El tema resume las principales características del flujo externo fluido-partícula. Trata tanto del movimiento de las partículas sólidas en el seno de un fluido como del flujo del fluido a través de lechos porosos, tanto fijos como ...
Salcedo Díaz, Raquel
core   +1 more source

Operaciones de Flujo de Fluidos. Tema 2: Flujo interno de fluidos [PDF]

open access: yes, 2011
En este tema se desarrollan las principales ecuaciones para manejar el flujo de ...
Salcedo Díaz, Raquel
core   +1 more source

Translocation effects on regional and local population viability and connectivity

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Translocations and reintroductions aim to improve the viability of isolated populations and promote connectivity for large carnivores. However, there is no established framework for assessing their success. We used the Eurasian lynx (Lynx lynx) in western and central Europe to assess the impact of translocations on the viability of six ...
Eva Sánchez Arribas   +25 more
wiley   +1 more source

Simultaneous Generation of Topographic Models and Manning Roughness Coefficient Maps From Tri‐Stereoscopic Satellite Images: Application to the Huarmey River, Peru

open access: yesThe Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.
Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita   +3 more
wiley   +1 more source

Presión arterial y flujo sanguíneo [PDF]

open access: yes, 2023
La sangre es el componente esencial para el aporte de oxígeno a los distintos órganos. Su movimiento es el flujo sanguíneo (Q) y se define como la cantidad de sangre (volumen) por unidad de tiempo. Sin embargo, este no es uniforme en todo el organismo ya
Nejamkin, Pablo
core   +1 more source

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