Results 141 to 150 of about 948,302 (303)

Construcción de un índice de vulnerabilidad financiera para el Ecuador [PDF]

, 2017
In this article we build a financial vulnerability index for the ecuadorian banking system during the years 2003 to 2016. The methodologies implemented were the equal variance weighting and the principal component analysis. The variables included are the
Reyes Gaibor, Sebastián David
core  

Caracterización de territorios urbanos informales utilizando Análisis de Componente Principales

Revista de Direito da Cidade
Las ocupaciones urbanas informales son características de las ciudades latinoamericanas. En Argentina, las tomas de tierra se reconocen como la tipología de ocupación informal más recurrente en los últimos años. El objetivo de este trabajo, es caracterizar los entornos de estos territorios informales, particularmente aquellas localizadas próximas a ...
Virginia Monayar, Juan Pablo Carranza
openaire   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Determinación cualitativa de los componentes del cemento portland CEM I 52,5-R endurecido [PDF]

, 2009
Se pretende contribuir al esclarecimiento de la causa o causas de la importante disminución de la resistencia de las pastas de cemento portland sometidas a altas temperaturas.
Ruiz Mérida, Francisco, Universitat Autònoma de Barcelona. Escola d'Enginyeria   +1 more
core  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

How health systems in sub-Saharan Africa can benefit from tuberculosis and other infectious disease programmes. [PDF]

, 2009
Weak and dysfunctional health systems in low-income countries, particularly in sub-Saharan Africa, are recognised as major obstacles to attaining the health-related Millennium Development Goals by 2015.
Enarson, D A, Harries, A D, Jensen, P M, Rusen, I D, Zachariah, R   +4 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

ESTUDIO DE LA CALIDAD DE VIDA EN BOLIVIA: METODOLOGIA Y MEDICION

Investigación & Desarrollo, 2008
En este documento se presenta la metodología con la que se elaboró un Indicador de Calidad de Vida (ICV) de hogares en el país. La metodología se basa en la descomposición por componentes principales para variables cualitativas.
Milenka Ocampo, Carlos Alberto Foronda Rojas   +1 more
doaj  

Determinación de las componentes principales del movimiento polar

, 1982
El desplazamiento del eje de rotación terrestre se produce como consecuencia de la superposición de movimientos de distintos períodos provocados por diferentes causas, siendo los principales el período de Chandler (14 meses) y el período anual. Se analizaron las periodicidades en las coordenadas x, y del polo y en la incógnita z.
openaire   +1 more source