Results 121 to 130 of about 927,172 (249)

Ubicación óptima de generadores distribuidos en sistemas de distribución usando un modelo de programación no lineal entera mixta [PDF]

open access: yes, 2017
Este trabajo presenta una metodología para encontrar los parámetros óptimos de los modelos circuitales equivalentes para una celda de combustible de Membrana de Intercambio de Protones o "Proton Exchange Membrane"(PEM)por sus siglas en ingles.
Bermúdez Mejía, Melissa   +1 more
core  

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

open access: yesNew Phytologist, EarlyView.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White   +6 more
wiley   +1 more source

Obtención de la ecuación constitutiva de ampollas de hidruros mediante nanoindentación [PDF]

open access: yes, 2016
En el presente trabajo, se ha desarrollado un procedimiento experimental para generar ampollas de hidruros de circonio (“blisters”) en vainas de combustible nuclear.
Gómez Sánchez, Francisco Javier   +3 more
core  

Narrative power in the narrative policy framework

open access: yesPolicy Studies Journal, EarlyView.
Abstract The Narrative Policy Framework lacks clear and empirical explanations of power. Yet, the study of narratives is inherently the study of power in shaping policy outputs and decisions. We develop a conceptual model positing that expressions of power (power to, with, and over) may be discovered in narrative constructs (e.g., narrative structure ...
Elizabeth A. Shanahan   +8 more
wiley   +1 more source

Experimental model to evaluate the gastrointestinal transit in mice

open access: yesCiencia Veterinaria, 2017
Se describe un modelo experimental para evaluar la acción de drogas, formulaciones medicamentosas o extractos vegetales sobre el tránsito gastrointestinal.
Ricardo Enrique Toso   +2 more
doaj  

Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley   +1 more source

Beneficios de los mantos de control de erosión temporal para la recuperación y protección de taludes y representación en un modelo físico de laboratorio [PDF]

open access: yes, 2017
Trabajo de InvestigaciónSe desarrollaron dos ejes principales, uno teórico y uno experimenta; en el teórico se evidencian usos, beneficios, características físicas y mecánicas e instalaciones de los Mantos de Control de Erosión; en el experimental se ...
Ardila-Ayala, Paola Andrea   +1 more
core  

The Five‐Thread Model & Academic Policy Entrepreneurs: From the White Australia Policy to Multicultural Australia

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley   +1 more source

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