Results 221 to 230 of about 6,564,297 (383)

Ultra‐Thin Oxide‐Based Double‐Layer Architecture Achieves Wide‐Temperature Broadband Microwave Absorption by Synergizing Lorentz Resonance and Thermionic Transport

open access: yesAdvanced Science, EarlyView.
Developing ultrathin wide‐temperature adaptive microwave absorption materials (MAMs) is crucial for enhancing the survival of military devices under alternating high‐temperature environment. Here, a double‐layer La2Zr2O7/Eu2Zr2O7 architecture is employed, with rare‐earth zirconates featuring with one‐eighth anion‐site vacancies, successfully achieving ...
Zewen Duan   +7 more
wiley   +1 more source

Rollable Single‐Piece Thermoelectric Generators at Cryogenic Temperature Fabricated with High‐performance CNT Films Achieved by Doping Modulation

open access: yesAdvanced Science, EarlyView.
High power factor CNT of 10.5 mW m−1 K−2 at 298 K achieved by a developed material‐processing strategy exhibited a small variation by 20% in the temperature range of 100–298 K which surpassed most inorganic materials (25‐70%). The CNT film‐based single‐piece TEG showed exceptional ultra‐low temperature tolerance and great flexibility, which is ...
Zihan Zhu   +6 more
wiley   +1 more source

Reinstating Niche Failure in Diabetic Cranial Defects via Chronotaxic Signal‐Amplifying Fluidic Biomimetic Hydrogel

open access: yesAdvanced Science, EarlyView.
An in situ moldable GelSSO/PDA@SDF hydrogel functions as a chronotaxic signal‐amplifying biomimetic niche to restore regenerative failure in diabetic cranial defects. By sequentially releasing SDF‐1α‐loaded PDA nanoparticles and osteoinductive oligodeoxynucleotides, it orchestrates immunomodulation, progenitor recruitment, angiogenesis, and ...
Yingji Mao   +5 more
wiley   +1 more source

3-D radar imaging unlocks the untapped behavioral and biomechanical archive of Pleistocene ghost tracks. [PDF]

open access: yesSci Rep, 2019
Urban TM   +7 more
europepmc   +1 more source

Polarimetric radar images

open access: yes, 2014
Ce manuscrit concerne une synthèse de mes travaux de recherches menés au sein de l'Onera sur les images polarimétriques radar de télédétection. Un radar polarimétrique permet de mesurer un plus grand nombre de paramètres qu'un radar monocanal en exploitant la nature vectorielle de l'onde électromagnétique.
openaire   +1 more source

Epsilon‐Negative Derived Electromagnetic Wave Absorption of Magnetic Metacomposites by Bifunctional Phase Paradigm

open access: yesAdvanced Science, EarlyView.
An epsilon‐negative response of up to 100000 in the radio frequency band is achieved by creating a metacomposite system with graphene/iron (III) oxide as the main body. The magnetic metacomposites are just like the mythical creature Qiongqi in Chinese mythology, capable of swallowing electromagnetic wave pollution that falls from the sky.
Xiance Zhu   +8 more
wiley   +1 more source

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