Results 231 to 240 of about 420,318 (376)

Investigating the Role of Geometry in Solar Water Heating: A Case Study of Cylindrical and Frustum Buckets

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study studies the effect of bucket shape and geometry on the performance of solar water heating systems. Three plexiglass (PMMA) buckets were chosen: cylindrical, frustum, and inverted frustum. Each bucket has a capacity of 13 L and 3 mm wall thickness.
Pankaj Dumka   +5 more
wiley   +1 more source

A portfolio diversification measure in the unit interval: A coherent and practical approach

open access: yesInternational Journal of Finance &Economics, EarlyView.
Abstract In this article, we introduce and examine the efficiency of a portfolio diversification measure. Using the recently developed coherence properties for diversification measures as well as other criteria, we show that the novel measure outperforms the most commonly used diversification measures.
Yuri Salazar Flores   +3 more
wiley   +1 more source

Admissible conditions for parabolic equations degenerating at infinity [PDF]

open access: bronze, 2008
S. Kamin   +2 more
openalex   +1 more source

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