Results 11 to 20 of about 8,082 (265)

Úvodník letošního prvního čísla časopisu Bedrník

open access: yesEnvigogika, 2010
Co je inteligentní využívání energie?Uspokojování základních energetických potřeb jednotlivců a společnosti, které: využívá co nejmenšího množství primární energie, zaručuje snížení energetických a ekonomických nákladů pro konečného uživatele, snižuje ...
Hana Kolářová
doaj   +1 more source

Stability follows efficiency based on the analysis of a large perovskite solar cells ageing dataset

open access: yesNature Communications, 2023
While perovskite solar cells have reached competitive efficiency values during the last decade, stability issues remain a critical challenge to be addressed for pushing this technology towards commercialisation.
Noor Titan Putri Hartono   +6 more
doaj   +1 more source

On Energy and Laplacian Energy of Graphs

open access: yesThe Electronic Journal of Linear Algebra, 2016
Let $G=(V,E)$ be a simple graph of order $n$ with $m$ edges. The energy of a graph $G$, denoted by $\mathcal{E}(G)$, is defined as the sum of the absolute values of all eigenvalues of $G$. The Laplacian energy of the graph $G$ is defined as \[ LE = LE(G)=\sum^n_{i=1}\left|\mu_i-\frac{2m}{n}\right| \] where $\mu_1,\,\mu_2,\,\ldots,\,\mu_{n-1 ...
Das, Kinkar Ch., Mojalal, Seyed Ahmad
openaire   +1 more source

Esprimere le energie dei paesaggi

open access: yesRi-vista: Ricerche per la Progettazione del Paesaggio, 2023
Sezione NEWS (senza abstract) Recensione / Informazione sul libro: Stremke S., Oudes D., Picchi P., (eds) 2022, Power of landscape.
Gabriele Paolinelli
doaj   +1 more source

Energetické a materiální toky při výrobě a užití středověké až novověké keramiky

open access: yesArchaeologia Historica
Hrnčíři při výrobě keramiky interagovali s řadou materiálů, které dokázali přetvořit v pevnou hmotu a výrobek s funkčními, formálními a stylistickými vlastnostmi.
Ladislav Čapek
doaj   +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

Using a Zero‐Strain Reference Electrode to Distinguish Anode and Cathode Volume Changes in a Solid‐State Battery

open access: yesAdvanced Materials Interfaces, EarlyView.
Volume changes of a solid‐state battery cell are separated into the individual contributions of anode and cathode. Simultaneously determining the “reaction volumes” of both electrodes requires a reference electrode with a pressure‐independent potential.
Mervyn Soans   +5 more
wiley   +1 more source

Energie én bezieling

open access: yesHandelingen, 2019
Het inzetten van eigen terminologie kan het domein van geestelijke zorg verhelderen, zeker in een omgeving van oncologische revalidatie. Deze case study uit het Antoni van Leeuwenhoek-ziekenhuis in Amsterdam, in het kader van het lopende Case Studies ...
Jowien van der Zaag   +2 more
doaj   +1 more source

High Quality MoS2 Layered Thin Films Obtained by Ionized Jet Deposition Investigated by X‐ray Absorption Spectroscopy at S L2,3 and Mo M2,3 Edges

open access: yesAdvanced Materials Interfaces, EarlyView.
Soft x‐ray absorption spectroscopy at the S L2,3 and Mo M2,3 edges reveals synthesis‐dependent electronic and structural order in MoS2. Bulk, exfoliated, and CVD samples show well‐resolved 2D features, while as‐deposited IJD films appear amorphous but crystallize into ordered 2H‐MoS2 upon moderate annealing, confirming IJD as a viable low‐temperature ...
Giulia Giovanelli   +12 more
wiley   +1 more source

Comparing energy and Randic energy

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2013
The recently conceived Randić energy (RE) is examined, and its relation to the (earlier much studied) total π-electron energy (E) is investigated. Within classes of molecular graphs, there exists a relatively good (increasing) linear correlation between RE and E.
Furtula, Boris, Gutman I.
openaire   +4 more sources

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