Results 61 to 70 of about 888,221 (229)
, 2005 En el marc crític produït per la demanda de l'aprofitament sostenible dels recursos, el sistema tècnic industrial nodrit per materials procedents de fonts minerals es presenta com un model pràcticament oposat als sistemes tradicionals, basats en els ...
Fentanes Gutiérrez-Zamora, Karla Angélica
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Sistema Nefelometrico Auto-referenciado Inmune a Fuentes de Luz Externas
KnE Engineering, 2018 This paper describes the concepts and procedures for the design and implementation of a water turbidity sensor. It is designed with the purpose of offering us water turbidity readings. The sensor is designed according to the standard ISO 7027 "The water quality, determination of turbidity", which specifies four methods for the determination of the ...
Vargas, Salvador, Calvo, Jossue
openaire +4 more sources
Characterization of dual purpose livestock farms in the Central Pacific area of Costa Rica. [PDF]
, 2008 P?ginas 28-37Este art?culo documenta las caracter?sticas biof?sicas y socioecon?micas de las fincas ganaderas de doble prop?sito en la regi?n Pac?fico Central de Costa Rica.
Holgu?n Casta?o, Vilma Amparo +2 more
core
Classification, characterisation and strategies for improvement of cattle and sheep pasture systems in marginal areas of Southern Chile [PDF]
, 2018 Pasture-based livestock systems in farms with medium or low size are especially important in less favored areas and are valuable for society. For these systems to survive, it is necessary to obtain an acceptable level of productivity and ensure ...
Avilez, J. P. +5 more
core +4 more sources
IAA : Información y actualidad astronómica (49) [PDF]
, 2016 Sumario : El método Doppler y la estrella Próxima Centauri.-- Las estrellas ¡laten!.-- Dinámica de los sistemas planetarios.-- FRBs: fuentes transitorias sin un origen claro.-- DECONSTRUCCIÓN Y otros ENSAYOS.
Abril, Miguel +15 more
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Frog Diversity in Central Amazonian Macrophyte Beds: The Role of Local Environmental Gradients
Austral Ecology, Volume 50, Issue 12, December 2025.ABSTRACT Ecological assemblages can be shaped by neutral, niche‐based processes, or a combination of both. Understanding the influence of these processes and evaluating diversity measures based on taxonomic, functional, and phylogenetic metrics on the structure of ecological assemblages can show patterns and unravel community assembly mechanisms ...
Mahima Hemnani +4 more
wiley +1 more source
Sistemas de Mantenimiento Técnico y Reparaciones y su aplicación en la Agricultura
Revista Ciencias Técnicas Agropecuarias, 2011 Basado en el estudio de fuentes bibliográficas y las investigaciones realizadas en Cuba y en el extranjero, así como los enfoques modernos aplicados a los sistemas de mantenimiento, se recomienda la selección de los sistemas a utilizar durante el ...
Liudmila Shkiliova +1 more
doaj
Analytical solution of a double-well Bose-Einstein Condensate
, 2014 We introduce a microscopic computation which shows that the Hamiltonian of a Bose-Einstein Condensate can be analytically solved in the two-mode approximation, in particular, in the case of an asymmetric double-well condensate in the dilute regime.
Barberis-Blostein, Pablo +2 more
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Molecular Ecology, Volume 34, Issue 24, December 2025.ABSTRACT Networks of alpine lakes and ponds support unique assemblages of aquatic organisms and provide an ideal biogeographical setting for studying the evolutionary, ecological and demographic outcomes of population fragmentation. In this study, we integrate genomic, morphological and community‐level data within a comparative multi‐taxon framework to
Joaquín Ortego +5 more
wiley +1 more source
Estudio de la Casuística de las Muestras de Entrada en los Sistemas de Reconocimiento mediante Iris Ocular [PDF]
, 2010 10 pages, 9 figures.-- Contributed to: V Jornadas de Reconocimiento Biométrico de Personas (JRBP 2010, Huesca, Spain, Sep 2-3, 2010).Aunque genéticamente idénticos, los iris de un individuo son únicos y estructuralmente distintos.
Fernández Saavedra, Belén +3 more
core +2 more sources