Results 81 to 90 of about 2,118,754 (312)

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source

Perspectives and behaviors surrounding planting practices in North America inform genetic conservation realities for American ginseng (Panax quinquefolius)

PLANTS, PEOPLE, PLANET, EarlyView.
American ginseng is a shade‐obligate, North American medicinal plant that is widely traded and used internationally. To meet global demand, ginseng is cultivated in forest farms in the Appalachian region of the USA and field‐based artificial shade farms in two regions: Ontario, Canada and Wisconsin, USA. We conducted social research leveraging in‐depth
Rachel E. Palkovitz, Mary K. Shenk, Eric P. Burkhart   +2 more
wiley   +1 more source

Sistema de préstec i control de material de laboratori [PDF]

, 2018
[CATALÀ] El projecte té com a objectiu el disseny d’un armari d’eines automàtic, que proporciona valor afegit respecte els existents actualment al mercat.
Badilla Daza, Leonardo, Biosca Yuste, Albert, Sagalés i Costa, Ramon, Salvo Nieto, Nil   +3 more
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Development of capacitive sensor for measuring soil water content Desenvolvimento de sensor capacitivo para a medição do teor de água do solo

Engenharia Agrícola, 2011
The irrigation management based on the monitoring of the soil water content allows for the minimization of the amount of water applied, making its use more efficient.
Alan K. Rêgo Segundo, José H. Martins, Paulo M. de B. Monteiro, Rrubens A. de Oliveira, Delly Oliveira Filho   +4 more
doaj   +1 more source

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

PLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade, Alejandro Casas, Edna Arévalo‐Marín, Gonzalo D. Álvarez‐Ríos, Hernán Alvarado‐Sizzo, Vanessa Guerrero‐Hernández, Paola Ubiergo‐Corvalán, Maite Lascurain‐Rangel   +7 more
wiley   +1 more source

Estudi del control d’actitud d’un coet de sondeig atmosfèric equipat amb un sistema de thrust vector control [PDF]

, 2013
L'objecte del present projecte és l'estudi, el disseny i la implementació d'un sistema de control d'actitud per a petits coets i sondes de fins a 20kg.
Manent Bistué, Pau
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Líneas de Investigación Desarrolladas en el Período 1977-2003 Facultad de Ingenería Eléctrica

Revista de I + D Tecnológico, 2003
El presente estudio se basó en la información existente en la Biblioteca Especializada de la Facultad de Ingeniería Eléctrica, así como en su Decanato, y evidenció las diferentes líneas de investigación y áreas de desarrollo.
Ignacio Chang
doaj  

Diseño de un sistema de control de calidad

Tecnología en Marcha, 2019
Este artículo presenta un procedimiento gene­ral, mediante el cual una persona conocedora de las técnicas de Control de Calidad, puede diseñar un sis­tema que le permita verificar el grado en que el pro­ducto o productos que fabrica, satisfacen las ...
Jorge E. Acuña
doaj   +1 more source

Autonomous Navigation in Large‐Scale Underground Environments Based on a Purely Topological Understanding of Tunnel Networks

Journal of Field Robotics, EarlyView.
ABSTRACT This work presents a non‐geometrical navigation approach based on a purely topological understanding of underground environments. By conceptualizing subterranean scenarios as a set of tunnels that intersect with each other, and taking a navigation approach based on topological instructions, we simplify the navigation problem to the sequential ...
Lorenzo Cano, Danilo Tardioli, Alejandro R. Mosteo   +2 more
wiley   +1 more source

¿Qué es el control avanzado? [PDF]

, 2010
Un sistema de control es un componente integral de cualquier sistema industrial y es necesario para dar economía y utilidad al producto del sistema.
Rivas Mendoza, Ricardo Ernesto
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