Search

Start Over Coverage 28-37

1. Historie cesty k objevu účinných modrých svítivých diod na bázi InGaN: Přednáška u příležitosti udělení Nobelovy ceny za fyziku za rok 2014

Creator:
Nakamura, Shuji and Gregora, Ivan
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
fyzika, dějiny, světelné diody, physics, 6, and 53
Language:
Czech
Description:
Přednáška u příležitosti udělení Nobelovy ceny za fyziku za rok 2014., The 2014 Nobel Prize for Physics was shared to Isamu Akasaki, Hiroshi Amano and Shuji Nakamura. These three articles contain the text of the address given in conjunction with the award., Shuji Nakamura., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Ski piste snow ablation versus potential infiltration (Veporic Unit, Western Carpathians)

Creator:
Mikloš, Michal, Igaz, Dušan, Šinka, Karol, Škvareninová, Jana, Jančo, Martin, Vyskot, Ilja, and Škvarenina, Jaroslav
Format:
počítač and online zdroj
Type:
model:article and TEXT
Subject:
snow water equivalent, snow density, artificial snow, snow ablation, soil temperature, and hydraulic conductivity
Language:
Slovak
Description:
Snow production results in high volume of snow that is remaining on the low-elevation ski pistes after snowmelt of natural snow on the off-piste sites. The aim of this study was to identify snow/ice depth, snow density, and snow water equivalent of remaining ski piste snowpack to calculate and to compare snow ablation water volume with potential infiltration on the ski piste area at South-Central Slovak ski center Košútka (Inner Western Carpathians; temperate zone). Snow ablation water volume was calculated from manual snow depth and density measurements, which were performed at the end of five winter seasons 2010–2011 to 2015–2016, except for season 2013–2014. The laser diffraction analyzes were carried out to identify soil grain size and subsequently the hydraulic conductivity of soil to calculate the infiltration. The average rate of water movement through soil was seven times as high as five seasons’ average ablation rate of ski piste snowpack; nevertheless, the ski piste area was potentially able to infiltrate only 47% of snow ablation water volume on average. Limitation for infiltration was frozen soil and ice layers below the ski piste snowpack and low snow-free area at the beginning of the studied ablation period.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public