Penumbra (law)

Known as: Penumbra (disambiguation)

In United States constitutional law, the penumbra includes a group of rights derived, by implication, from other rights explicitly protected in the…

Papers overview

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2018

Abstract A typical sunspot, as seen in white-light intensity images, has a two part structure: a dark umbra and a lighter…

2015

Sunspots are the visible manifestation of magnetically active regions which are common features of the Sun, but sometimes they’re…

2011

Context. Recent discoveries of intensity correlated downflows in the interior of a sunspot penumbra provide direct evidence for…

2007

Tienda online donde Comprar The Ischemic Penumbra al precio 158,83 € de Geoffrey A. Donnan | Jean-Claude Baron | Stephen M. Davis…

2005

In this paper we introduce the Solar Radiation Physical Modeling (SRPM) meth- ods and show its application to the modeling of…

2003

Background and Purpose—Cerebral ischemia has been proposed as a contributing mechanism to secondary neuronal injury after…

2000

We have measured velocity maps of a round sunspot near the center of the solar disk. We derive the small-scale ve- locity field…

1989

Un modele semi-empirique de la penombre des taches solaires, incluant l'equilibre hydrostatique, l'equilibre statistique, le…

1986

The tradition of the classical 1901 work by Birkeland [1] on aurora phenomena by laboratory terrella experiments was resumed by…

1981

A study of simple radiative transfer models for some of the dark filaments on the outer edge of penumbras, which observations…