Results 11 to 20 of about 1,046 (195)

Microbial drivers of root plasticity. [PDF]

open access: yesNew Phytol
Summary Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, and microbial metabolisms. Plant roots adjust their development within the soil matrix (growth, branching, root angle, and anatomical features) by ...
Dini-Andreote F   +5 more
europepmc   +2 more sources

Estudio del comportamiento hidrodinámico del filtro protector laminar LM en el flujo radial hacia pozos de agua [PDF]

open access: yes, 1981
El presente trabajo de investigación consiste en el estudio del flujo del agua en estado permanente en la inmediata vecindad de un pozo. El estudio incide en la modificación del flujo de entrada al pozo por efecto de la introducción del material filtroprotector laminara L.M. alrededor del filtro entubado o rejilla.
Santayana Vela, Toribio Sebastián
openaire   +2 more sources

Modelación física del flujo a través de las compuertas radiales de la derivadora Cañar

open access: yesMaskana, 2016
RESUMEN La cuenca baja del río Cañar es una planicie costera con alto potencial hidro-económico. Sin embargo, esta zona es expuesta a grandes eventos de inundación.
Vicente Tinoco   +7 more
doaj   +1 more source

Plataforma para construcción de generador de flujo radial para microturbina eólica

open access: yes, 2018
La demanda de energía en el mundo es cada vez mayor, por lo que se deben buscar nuevas fuentes de energía para satisfacer esta demanda de forma sostenible. Una buena opción es el desarrollo de las energías renovables, y entre ellas, de la energía eólica.
Quiralte Carmona, Beatriz
openaire   +2 more sources

Optimización de Estatores para Motores Superconductores de Flujo Axial Optimización de Estatores para Motores Superconductores de Flujo Axial

open access: yesActa Universitaria, 2012
The development of superconducting electrical machines has been designed primarily to design and build engines with the superconducting magnetic field in radial configuration, as traditional engines, so the design and construction of rotating electrical ...
Oscar Gerardo Ibarra-Manzano   +4 more
doaj   +1 more source

Variabilidad radial y acimutal del flujo de savia en olivos plantados en seto

open access: yes, 2012
No
Elsayed-Farag, S.   +4 more
openaire   +2 more sources

Optimización del comportamiento de flujo en un impulsor centrífugo radial mediante el rediseño del borde de ataque

open access: yesPädi Boletín Científico de Ciencias Básicas e Ingenierías del ICBI
Este estudio investiga la mejora del comportamiento del flujo en un impulsor centrífugo radial mediante el rediseño del borde de ataque del álabe. Utilizando técnicas avanzadas de Dinámica de Fluidos Computacional (CFD), se analizaron tres configuraciones distintas de borde de ataque para evaluar su impacto en la eficiencia y el rendimiento del ...
Carlos Alfonso Juárez-Navarro   +3 more
openaire   +2 more sources

Genetic inference of orchid colonization of a Costa Rican lava flow

open access: yesBiotropica, Volume 55, Issue 6, Page 1195-1202, November 2023., 2023
A 1992 lava flow provides an excellent opportunity to study patterns of colonization and growth of plant populations on a naturally disturbed site. Plants with wind‐dispersed seeds, such as orchids, are often among the earliest colonists after habitat disturbance.
Dorset W. Trapnell, J. L. Hamrick
wiley   +1 more source

Validating graph‐based connectivity models with independent presence–absence and genetic data sets

open access: yesConservation Biology, Volume 37, Issue 3, June 2023., 2023
Abstract Habitat connectivity is a key objective of current conservation policies and is commonly modeled by landscape graphs (i.e., sets of habitat patches [nodes] connected by potential dispersal paths [links]). These graphs are often built based on expert opinion or species distribution models (SDMs) and therefore lack empirical validation from data
Alexandrine Daniel   +9 more
wiley   +1 more source

Automated identification of diverse Neotropical pollen samples using convolutional neural networks

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 9, Page 2049-2064, September 2022., 2022
Abstract Pollen is used to investigate a diverse range of ecological problems, from identifying plant–pollinator relationships to tracking flowering phenology. Pollen types are identified according to a set of distinctive morphological characters which are understood to capture taxonomic differences and phylogenetic relationships among taxa.
Surangi W. Punyasena   +4 more
wiley   +1 more source

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