Results 61 to 70 of about 1,088,621 (218)

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva   +5 more
wiley   +1 more source

La integración de las cadenas de suministro y su implicación en la gestión del capital circulante. Un análisis mediante dinámica de sistemas. [PDF]

open access: yes, 2001
La Dinámica de Sistemas se ha posicionado como una buena herramienta para impulsar la mejora de la gestión en las cadenas de suministro. Los modelos de Dinámica de Sistemas ayudan a comprender la relación entre estructura y patrones de ...
Crespo Márquez, Adolfo   +1 more
core  

Improvement in survivorship: The key for population recovery? [PDF]

open access: yes, 2016
In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962.
Crespo, Enrique Alberto   +2 more
core   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida   +7 more
wiley   +1 more source

Efecto del fuego y dinámica de las hidrófitas emergentes en el humedal de la Mintzita, Michoacán, México Fire and dynamics of the emergent hydrophytes of the Mintzita wetlands, Michoacán, México

open access: yesRevista Mexicana de Biodiversidad, 2009
El estudio de la dinámica de humedales de aguas interiores de México, en particular del estado de Michoacán, ha sido muy limitado. Por lo tanto, en el año 2005 se inició un estudio de campo a través de parcelas permanentes para conocer la abundancia y ...
Yazmín Escutia-Lara   +2 more
doaj  

Dinámica demográfica [PDF]

open access: yes, 2004
Producción CientíficaEstudio de la situación de la población de Castilla y León (evolución, estructuras demográficas, migraciones y poblamiento ...
Arranz Requejo, María Isabel   +2 more
core   +1 more source

Temporal dynamics in functional fruit traits of native and invasive fleshy fruited plants in subtropical Andean forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Fruits encompass the energetic and material flow between both interacting parties in frugivore‐mediated seed dispersal. Since fruit traits matter in frugivores' foraging decisions, the temporal dynamics of fruit traits might influence interaction outcomes.
Irene M. A. Bender   +3 more
wiley   +1 more source

Variación temporal de la productividad foliar de Thalassia Testudinum K. d. Koenig en una pradera del Rincón de Guanabo, Cuba/ Temporal variation of the productivity of Thalassia testudinum (K. D. Koenig) in a meadow of Rincon de Guanabo, Cuba

open access: yesRevista de Investigaciones Marinas, 2019
Thalassia testudinum K. D. Koenig es la angiosperma marina dominante en la plataforma cubana, pero la variabilidad intra-anual de la producción foliar ha sido evaluada en pocos sitios.
Emma Elena Gómez González   +3 more
doaj  

Impacto de la tarificación dinámica sobre el bienestar social en las carreteras metropolitanas [PDF]

open access: yes, 2011
La aplicación de una tarifa dinámica se fundamenta en la aplicación de precios variables según segmentos horarios del día para motivar el cambio en la elección del momento del desplazamiento, con lo que se busca un laminando de la demanda en los ...
Gragera Lladó, Albert   +2 more
core  

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

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