Nauka i tehnologija
Re: Nauka i tehnologija
Jos kada dobiju sposobnost da samostalno uce i donose odluke.
There's nothing worse than making your hand and losing it all, because you were drawing dead to start with.
Re: Nauka i tehnologija
Japanci.
Re: Nauka i tehnologija
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Re: Nauka i tehnologija
Aaa greška, dobro jeLaki021 je napisao:Japanci.
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Re: Nauka i tehnologija
Naučni rad publikovan 22.03.2018. u Nature Communications:
Adsorption-based atmospheric water harvesting device for arid climates
Hyunho Kim, Sameer R. Rao, Eugene A. Kapustin, Lin Zhao, Sungwoo Yang, Omar M. Yaghi & Evelyn N. Wang
Nature Communicationsvolume 9, Article number: 1191 (2018)
Received: 11 October 2017
Accepted: 24 January 2018
Published online: 22 March 2018
Abstract
Water scarcity is a particularly severe challenge in arid and desert climates. While a substantial amount of water is present in the form of vapour in the atmosphere, harvesting this water by state-of-the-art dewing technology can be extremely energy intensive and impractical, particularly when the relative humidity (RH) is low (i.e., below ~40% RH). In contrast, atmospheric water generators that utilise sorbents enable capture of vapour at low RH conditions and can be driven by the abundant source of solar-thermal energy with higher efficiency. Here, we demonstrate an air-cooled sorbent-based atmospheric water harvesting device using the metal−organic framework (MOF)-801 [Zr6O4(OH)4(fumarate)6] operating in an exceptionally arid climate (10–40% RH) and sub-zero dew points (Tempe, Arizona, USA) with a thermal efficiency (solar input to water conversion) of ~14%. We predict that this device delivered over 0.25 L of water per kg of MOF for a single daily cycle.
...
https://www.nature.com/articles/s41467-018-03162-7#Bib1
Re: Nauka i tehnologija
Nevjerovatno je da su ovo prodali. Nogu misliti kakve su tajkunsko-izdajnicke veze radile na realizaciji prodaje.
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Послато са Redmi Note 4 уз помоћ Тапатока
Re: Nauka i tehnologija
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...
Re: Nauka i tehnologija
Terminator u povoju.
Re: Nauka i tehnologija
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...
Re: Nauka i tehnologija
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...
Re: Nauka i tehnologija
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...
Re: Nauka i tehnologija
Ovo sve bolje
Послато са Redmi Note 4 уз помоћ Тапатока
Послато са Redmi Note 4 уз помоћ Тапатока
Re: Nauka i tehnologija
Najgore je svađati se sa budalom. Prvo te spusti na svoj nivo, a onda te dotuče iskustvom...