Results 61 to 70 of about 279,049 (350)

Artificial Modulation of the Hydrogen Evolution Reaction Kinetics via Control of Grain Boundaries Density in Mo2C Through Laser Processing

open access: yesAdvanced Functional Materials, EarlyView.
A laser‐driven strategy enables precise microstructural modulation of Mo₂C, achieving nanoscale grain control (15.6 ± 5 nm) and an ultrahigh grain boundary density (130 µm−1). Moreover, high‐angle grain boundaries enhance active sites, facilitate electron transport, and optimize hydrogen adsorption kinetics, significantly reducing overpotential.
Seok‐Ki Hyeong   +13 more
wiley   +1 more source

The pole-sitter mission concept : an overview of recent developments and possible future applications [PDF]

open access: yes, 2011
The paper provides a survey of novel mission concepts for continuous, hemispheric polar observation and direct-link polar telecommunications. It is well known that these services cannot be provided by traditional platforms: geostationary satellites do ...
Ceriotti, Matteo   +2 more
core  

Rigid Fluorescent Indacenetetraone‐Based Semiconducting Polymers via Knoevenagel Condensation

open access: yesAdvanced Functional Materials, EarlyView.
New donor–acceptor polymers prepared by Knoevenagel condensation of indacenedithiophene‐ and indacenedifuran‐based aldehydes reveal an exceptionally rigid backbone, which is manifested in the remarkably narrow absorption and emission bands in red to near‐infrared region.
So‐Huei Kang   +7 more
wiley   +1 more source

3D Nano‐architected Polymer Shell Enables Reconfigurable Stabilized Blue Phase Soft Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Spherical polymer shells featuring nanostructure of blue phase (BP) disclinations form via in situ photo‐polymerization within BP liquid crystals, providing controlled anchoring for BP nucleation and growth at room temperature and beyond. This architected confinement enhances BP thermal stability over a broad temperature range while enabling dynamic ...
Sepideh Norouzi   +8 more
wiley   +1 more source

Electronic-components less fully textile multiple resonant combiners for body-centric near field communication

open access: yesScientific Reports, 2021
Smart and e-textiles have nowadays an important increasing place in the garment industry. The rise of embedded telecommunications, especially smartphones in our pocket, enables us to provide a power source and a wireless link for smart textiles. The main
Baptiste Garnier   +4 more
doaj   +1 more source

The Deepest Blue: Major Advances and Challenges in Deep Blue Emitting Quasi‐2D and Nanocrystalline Perovskite LEDs

open access: yesAdvanced Materials, EarlyView.
In this review, the recent development of deep‐blue (≤465 nm) perovskite light‐emitting diodes (PeLEDs) are summarized, using different perovskite nanomaterials, including nanocrystals (NCs), quantum dots (QDs), nanoplatelets (NPLs), quasi‐2D thin film, 3D bulk thin film, as well as lead‐free perovskite nanomaterials.
Pui Kei Ko   +6 more
wiley   +1 more source

Optical Technologies Supporting 5G/6G Mobile Networks

open access: yesPhotonics
Intensively developed mobile systems and networks 5G [...]
Zbigniew Zakrzewski   +4 more
doaj   +1 more source

Deregulation of Indian Telecommunication: An Analysis of Customer Benefit [PDF]

open access: yes, 2012
This study investigates whether mobile customers were made better off following the deregulation of the Indian telecommunications industry. It will establish a link between industry deregulation and affordability and accessibility for customers.
Johnson, Jordan
core   +1 more source

The diffusion of IP telephony and vendors' commercialisation strategies [PDF]

open access: yes, 2009
This is a post-peer-review, pre-copyedit version of an article published in the Journal of Information Technology. The definitive publisher-authenticated version is available at the link below.The Internet telephony (IP telephony) has been presented as a
Ahuja S.R.   +14 more
core   +1 more source

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