نتایج جستجو برای: frost formation

تعداد نتایج: 531411  

Journal: :Clinical Kidney Journal 2014

Journal: :Nature 1912

Journal: :Nature 1902

2012
Stephen S. L. Peppin Robert W. Style Stephen Taber

8 The formation of rhythmic lenses of ice in freezing soils is an intriguing geo9 physical phenomenon that is not fully understood, despite much experimental and 10 theoretical work over the past century. We review proposed mathematical models 11 of ice lens growth and frost heave, from early capillary theories and models based 12 on the concept of a frozen fringe, to more recent advances that ...

2011
Randall P. Perrine Derek C. Richardson Daniel J. Scheeres

We present a numerical method that incorporates particle sticking in simulations using the N-body code pkdgrav to study motions in a local rotating frame, such as a patch of a planetary ring. Particles stick to form non-deformable but breakable aggregates that obey the (Eulerian) equations of rigid-body motion. Applications include local simulations of planetary ring dynamics and planet formati...

Journal: :Science 2009
P H Smith L K Tamppari R E Arvidson D Bass D Blaney W V Boynton A Carswell D C Catling B C Clark T Duck E Dejong D Fisher W Goetz H P Gunnlaugsson M H Hecht V Hipkin J Hoffman S F Hviid H U Keller S P Kounaves C F Lange M T Lemmon M B Madsen W J Markiewicz J Marshall C P McKay M T Mellon D W Ming R V Morris W T Pike N Renno U Staufer C Stoker P Taylor J A Whiteway A P Zent

The Phoenix mission investigated patterned ground and weather in the northern arctic region of Mars for 5 months starting 25 May 2008 (solar longitude between 76.5 degrees and 148 degrees ). A shallow ice table was uncovered by the robotic arm in the center and edge of a nearby polygon at depths of 5 to 18 centimeters. In late summer, snowfall and frost blanketed the surface at night; H(2)O ice...

Journal: :Plant physiology 1954
A K Khudairi K C Hamner

Proc. Amer. Soc. Hort. Sci. 55: 247-253. 1950. 27. SCHAEFER, V. J. The formation of ice crystals in the laboratory and the atmosphere. Chem. Rev. 44: 291-320. 1949. 28. SCHOONOVER, W. R., BROOKS, F. A., and WALKER, H. B. Protection of orchards against frost. California Agr. Ext. Circ. No. 111. 1939. 29. SEEMANN, J. tJber die Bedeutung der Unterkiihlung fur die Selektion frostresistenter Bohnenp...

Journal: :ACS nano 2012
Philseok Kim Tak-Sing Wong Jack Alvarenga Michael J Kreder Wilmer E Adorno-Martinez Joanna Aizenberg

Ice-repellent coatings can have significant impact on global energy savings and improving safety in many infrastructures, transportation, and cooling systems. Recent efforts for developing ice-phobic surfaces have been mostly devoted to utilizing lotus-leaf-inspired superhydrophobic surfaces, yet these surfaces fail in high-humidity conditions due to water condensation and frost formation and e...

2007

This paper basically follows the title, i.e. it investigates the impact of frost flowers (FF) as an Brsource, recycling of bromine on snow, and the impacts of open leads in the initiation and development of ozone depletion events in the Arctic marine boundary layer. They do this using a sophisticated 1D model with chemistry, microphysics and cloud formation used in a Lagrangian mode and by vary...

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