Results 71 to 80 of about 71,496 (262)

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Radio communication in random graphs

open access: yesJournal of Computer and System Sciences, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Robert Elsässer, Leszek Gasieniec
openaire   +2 more sources

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Community Radio als Partizipationsmedium? Ein Literature Review

open access: yesGlobal Media Journal: German Edition
Der partizipative Ansatz wird als Paradigmenwechsel zu den diffusionistischen Konzepten im Rahmen der Kommunikation für sozialen Wandel verstanden (del Valle, 2007, zitiert in Marí Sáez, 2013, S. 556).
Lea Konrad
doaj   +1 more source

Weak Communication in Radio Networks [PDF]

open access: yes, 2002
Quite often algorithms designed for no-collision-detection radio networks use a hidden form of collision detection: it is assumed that a station can simultaneously send and listen. Then, if it cannot hear its own message, then apparently a collision has occurred. IEEE Standard 802.11 says that a station can either send or listen to a radio channel, but
Tomasz Jurdzinski   +2 more
openaire   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

The true inventor of the radio communications

open access: yes2008 IEEE History of Telecommunications Conference, 2008
There are more than just a few examples in the history of innovations when it is not so obvious who exactly should be praised as the inventor of a specific device. The invention of radio communications are certainly one of them. This paper is based on historical documentation and describes the battle of Nikola Tesla and Guglielmo Marconi in the USA as ...
Kuzle, Igor   +2 more
openaire   +3 more sources

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Radio Obywatelskie from Poznań as an example of a community radio station

open access: yesActa Universitatis Lodziensis. Folia Litteraria Polonica, 2018
In the article, the third community broadcasting sector, alongside the public and commercial sectors – is described. The history of community radio journalism is also analysed.
Urszula Doliwa
doaj   +1 more source

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