نتایج جستجو برای: sun space

تعداد نتایج: 525725  

Journal: :Science Advances 2021

We report light-driven levitation of macroscopic polymer films whose bottom surface is engineered to maximize the thermal accommodation coefficient. Specifically, we levitated centimeter-scale disks made commercial 0.5-micron-thick mylar film coated with carbon nanotubes on one side. When illuminated light intensity comparable natural sunlight, disk heats up and interacts incident gas molecules...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1390

the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...

2011
K. J. Ranson G. Sun V. I. Kharuk J. Howl

Multi-sensor Remote Sensing of Forest Dynamics in Central Siberia K.J. Ranson, G. Sun, V.I. Kharuk and J. Howl 4 1 NASA’s Goddard Space Flight Center, Code 923, Greenbelt, MD, USA, [email protected] 2 Department of Geography University of Maryland, College Park, USA, [email protected] 3 V.N. Sukachev Institute of Forest, Academgorodok, Krasnoyarsk, Russia, [email protected] Sigma Space Cor...

Journal: :journal of biomedical physics and engineering 0
m. m. movahedi a. alipour s. a. r. mortazavi m. tayebi

background: sun protection materials have been one of the major concerns in pharmaceutical industry since almost one century ago. various materials have been found to have such an effect but there are still many unknown substances that have not been discovered. objective: to introduce a novel mineral-based sun lotion with considerable uv absorption properties compared to commercially available ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

in chapter 1, charactrizations of fragmentability, which are obtained by namioka (37), ribarska (45) and kenderov-moors (32), are given. also the connection between fragmentability and its variants and other topics in banach spaces such as analytic space, the radone-nikodym property, differentiability of convex functions, kadec renorming are discussed. in chapter 2, we use game characterization...

2007
Dibyendu Nandy Duncan H. Mackay Richard C. Canfield

The properties and dynamics of magnetic fields on the Sun’s photosphere and outer layers – notably those within solar active regions – govern the eruptive activity of the Sun. These photospheric magnetic fields also act as the evolving lower boundary of the Sun-Earth coupled system. Quantifying the physical attributes of these magnetic fields and exploring the mechanisms underlying their influe...

2009
Roberto Trotta Roberto Ruiz de Austri

We study in detail the ability of the nominal configuration of the IceCube neutrino telescope (with 80 strings) to probe the parameter space of the Constrained MSSM (CMSSM) favoured by current collider and cosmological data. Adopting conservative assumptions about the galactic halo model and the expected experiment performance, we find that IceCube has a probability between 2% and 12% of achiev...

Journal: :Data Science Journal 2007
Shinichi Watari

The National Institute of Information and Communications Technology (NICT) operates a Japanese space forecast center for the International Space Environment Service (ISES). Information on space weather is exchanged daily among the space weather forecast centers all over the world. Researches of space weather need data on large areas of space from the Sun to the Earth’s upper atmosphere. It is n...

Journal: :the international journal of humanities 2014
neda ziabakhsh seyed mostafa mokhtabad amrei

the main sources of all natural light are the sun, the moon and the stars. in other words, the principle source of illumination is the light as mediated by atmosphere. according to some philosophers, spiritual or holy light includes not only material and quantified aspect, but being non-physical properties it treats as a spiritual connector between god and man. the light is the main part of exi...

Journal: :The European journal of neuroscience 2005
Anna Gagliardo Giorgio Vallortigara Daniele Nardi Verner P Bingman

The hippocampal formation (HF) plays a crucial role in amniote spatial cognition. There are also indications of functional lateralization in the contribution of the left and right HF in processes that enable birds to navigate space. The experiments described in this study were designed to examine left and right HF differences in a task of sun compass-based spatial learning in homing pigeons (Co...

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