نتایج جستجو برای: shaded pole

تعداد نتایج: 23052  

Journal: :Nature Climate Change 2008

Ali Mohadesii Bahram Sadeghi Bighami

In this paper we propose a new approach to plane partitioning with similar features to those of Polar Diagram, but we assume that the pole is close to the sites. The result is a new tessellation of the plane in regions called Near Pole Polar Diagram NPPD. Here we define the (NPPD) of points, the dual and the Contracted dual of it, present an optimal algorithms to draw them and discuss the appli...

Journal: :Symposium - International Astronomical Union 1990

2014
Bastiaan Brouwer Per Gardeström Olivier Keech

Phytochrome is thought to control the induction of leaf senescence directly, however, the signalling and molecular mechanisms remain unclear. In the present study, an ecophysiological approach was used to establish a functional connection between phytochrome signalling and the physiological processes underlying the induction of leaf senescence in response to shade. With shade it is important to...

2011
Melanie Glaettli

Aim Species capable of vigorous growth under a wide range of environmental conditions should have a higher chance of becoming invasive after introduction into new regions. High performance across environments can be achieved either by constitutively expressed traits that allow for high resource uptake under different environmental conditions or by adaptive plasticity of traits. Here we test whe...

A. Shiravi B. Ganji M. Shiravi,

One of the main challenges in developing magnetic resonance imaging (MRI) systems is to create a static coil that needs to generate magnetic field density along with the characteristics of optimal homogeneity and magnitude size. To do this, two N42 Block PMs are used and the iron core is designed and optimized in accordance with the dimensions of PM pieces using ANSYS Maxwell software. Then, al...

Journal: :The Geographical Journal 1913

Journal: :Frontiers in Astronomy and Space Sciences 2022

The behavior of the Earth’s middle atmosphere and ionosphere is governed by multiple processes resulting not only from downward energy transfer Sun magnetosphere but also upward terrestrial weather. Understanding relative importance mechanisms beyond solar geomagnetic activity essential for progress in multi-day predictions atmosphere-ionosphere system. recent development research infrastructur...

2000
Giora J. Kidron

Water availability is the most important limiting factor in arid lands. Any additional source of water, such as dew and fog, may have a positive impact upon the ecosystem. Dew and fog precipitation are largely dictated by weather conditions and habitat. Dew and fog measurements were carried out for 29 days in the fall of 1987–1989 at three distinctive habitats within a single drainage basin in ...

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