Results 91 to 100 of about 3,407 (289)
Advanced Science, EarlyView.A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim +8 more
wiley +1 more source
The Astrophysical JournalWe report the small-scale spatial variation in cool ( T ∼ 10 ^4 K) Mg ii absorption detected in the circumgalactic medium (CGM) of a star-forming galaxy at z ≈ 0.8.
Ahmed Shaban +8 more
doaj +1 more source
Galactic cluster winds in presence of a dark energy [PDF]
, 2013 We obtain a solution for the hydrodynamic outflow of the polytropic gas from the gravitating centre, in the presence of the uniform dark energy (DE).
G. S. Bisnovatyi Kogan +3 more
core +1 more source
Chiral‐Encoded Pt‐Ir Surfaces as Apparent Spin Filter for Enhanced Oxygen Reduction
Advanced Science, EarlyView.The Chiral‐Induced Spin Selectivity (CISS) effect is employed in chiral‐encoded mesoporous Platinum‐Iridium (Pt‐Ir) electrocatalysts to enhance the oxygen reduction reaction (ORR). A break in spin symmetry leads to a substantial antagonistic difference in activity (>200%) when comparing two enantiomorphs of the same electrode.
Zikkawas Pasom +5 more
wiley +1 more source
Advanced Science, EarlyView.ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen +7 more
wiley +1 more source
Wind-fed Supermassive Black Hole Accretion in the Ultracompact Dwarf Galaxy M60-UCD1
The Astrophysical JournalUltracompact dwarf galaxies (UCDs) are thought to be remnants of stripped galactic nuclei, among which a handful are known to host a central supermassive black hole (SMBH).
Zhao Su, Zhiyuan Li, Meicun Hou
doaj +1 more source
Galactic Disk Winds Driven by Cosmic Ray Pressure
, 2018 Cosmic ray pressure gradients transfer energy and momentum to extraplanar gas in disk galaxies, potentially driving significant mass loss as galactic winds. This may be particularly important for launching high-velocity outflows of “cool” (T less than or
Mao, Alwin, Ostriker, Eve C
core +1 more source
Advanced Science, EarlyView.In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo +7 more
wiley +1 more source
A Dual Active Black Hole Candidate with Mass Ratio ~7:1 in a Disk Galaxy
The Astrophysical Journal LettersDual active galactic nuclei (AGNs) with comparable masses are commonly witnessed among the major merged galaxies with interaction remnants. Considering almost every massive galaxy is associated with multiple dwarf satellites around it, minor mergers ...
Xiao Cao +10 more
doaj +1 more source
Ultraviolet line-driven disc winds as a feedback mechanism in bright active galactic nuclei [PDF]
, 2022 Astronomical observations have shown that galaxies and the supermassive black holes (BH) located at their centres have evolved together over cosmic time.
QUERA-BOFARULL, ARNAU
core