Results 31 to 40 of about 389,501 (319)

Molecular Templating Enables Precise CeNiC2/Ni Heterostructures for Efficient Alkaline Hydrogen Oxidation

open access: yesAdvanced Functional Materials, EarlyView.
A series of Bi‐TMCs‐based heterostructures (CeNiC2/Ni‐x%) have been precisely constructed through a “molecular‐template”‐assisted strategy, which exhibits remarkable alkaline HOR performance derived from the strong synergy between Ni and CeNiC2 components.
Xi Yin   +7 more
wiley   +1 more source

L’accès du plus grand nombre aux services essentiels ne se fera pas sans une implication du secteur privé et sans une tarification adéquate de ces services

open access: yesField Actions Science Reports, 2012
La couverture, via le secteur privé, des besoins en services de base (eau, énergie, services financiers, logement,..) des populations des pays en développement est une nécessité si l’on veut essayer de faire reculer la pauvreté.
Luc Rigouzzo
doaj  

DARK ENERGY WITHOUT DARK ENERGY [PDF]

open access: yesDark Matter in Astroparticle and Particle Physics, 2008
32 pages, 8 figures; Invited contribution to appear in the Proceedings of the Dark2007 Conference, Sydney, Australia, Sept 2007, eds H. Klapdor-Kleingrothaus and G.F. Lewis, (World Scientific, Singapore, 2008)
openaire   +2 more sources

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Robust behavior and spin-texture stability of the topological surface state in Bi2Se3 upon deposition of gold

open access: yesnpj Quantum Materials, 2022
The Dirac point of a topological surface state (TSS) is protected against gapping by time-reversal symmetry. Conventional wisdom stipulates, therefore, that only through magnetisation may a TSS become gapped.
O. J. Clark   +4 more
doaj   +1 more source

Chybné zapojení čerpadla v topném systému [PDF]

open access: yes, 2017
The expert literature describes the adaptive mode of a pump as one possibility for the significant savings in electricity consumption for heating in residential buildings. However, there are examples where a project, based on the superficial knowledge of
Hujer, Jan, Novotný, Petr
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Modèle d’échange d’énergie et de matière dans un four rotatif, incluant la combustion

open access: yesRevue des Énergies Renouvelables, 2015
Cette étude a pour objet la modélisation d’un four rotatif d’une cimenterie par voie sèche. Le modèle repose sur la connaissance des cinétiques des réactions et sur la représentation macroscopique des écoulements par une cascade de réacteurs parfaitement
K. Moussi   +3 more
doaj  

Schreiben Gemeinden voneinander ab? Ein Vergleich von kommunalen Energie- und Klimastrategien Schweizer Gemeinden

open access: yesYearbook of Swiss Administrative Sciences
Diese Forschungsarbeit geht der Frage nach, ob kleine Gemeinden die Energie- und Klimastrategien von grossen Gemeinden nachahmen, um die Entstehung von kommunalen Energie- und Klimastrategien besser zu verstehen.
Kim Whett
doaj   +1 more source

NIELINIOWA ANALIZA SIECI ZBIERAJĄCYCH ENERGIĘ W ZAKRESIE RADIOWYM O WYSOKIM WSPÓŁCZYNNIKU DOBROCI Q

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2018
Artykuł poświęcony jest nieliniowej analizie obwodów zbierających energię o wysokim i niskim współczynniku dobroci Q, w zakresie częstotliwości radiowych. Z użyciem Keysight Advanced Design System wykonano analizę wielkosygnałową.
Christian Merz, Gerald Kupris
doaj   +1 more source

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