Results 91 to 100 of about 453,739 (281)

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

open access: yesAdvanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim   +6 more
wiley   +1 more source

Charting the Stellar Streams of the Milky Way [PDF]

open access: yes
With massive datasets, we can now study Galactic halo structures in unprecedented detail, incorporating kinematic information alongside positions and photometry.
Starkman, Nathaniel
core   +1 more source

The dynamical memory of tidal stellar streams

open access: yesAstronomy & Astrophysics
Context. Stellar streams offer one of the most sensitive probes of the Milky Way’s gravitational potential, as their phase-space morphology encodes both the tidal field of the host galaxy and the internal structure of their progenitors.
Viterbo Giuseppe, Buck Tobias
doaj   +1 more source

High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry

open access: yesAdvanced Functional Materials, EarlyView.
We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler   +6 more
wiley   +1 more source

Detectability of dark matter subhalo impacts in Milky Way stellar streams

open access: yesThe Open Journal of Astrophysics
Stellar streams are a promising way to probe the gravitational effects of low-mass dark matter (DM) subhalos. In recent years, there has been a remarkable explosion in the number of stellar streams detected in the Milky Way, and hundreds more may be ...
Junyang Lu   +3 more
doaj   +1 more source

The Stellar Tidal Stream Survey

open access: yes, 2018
9 pages, 4 figures, submitted to Highlights on Spanish Astrophysics X, Proceedings of the XIII Scientific Meeting of the Spanish Astronomical Society, B. Montesinos, A. Asensio Ramos, F. Buitrago, R. Schodel, E. Villaver, S.
openaire   +2 more sources

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

open access: yesAdvanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong   +10 more
wiley   +1 more source

Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope

open access: yesThe Astrophysical Journal
Stellar streams form through the tidal disruption of satellite galaxies or globular clusters orbiting a host galaxy. Globular cluster streams are exciting since they are thin (dynamically cold) and therefore sensitive to perturbations from low-mass ...
Christian Aganze   +7 more
doaj   +1 more source

Asymmetries in stellar streams induced by a galactic merger

open access: yesAstronomy & Astrophysics
Stellar streams are sensitive to perturbations from, for example, giant molecular clouds, bars and spiral arms, infalling dwarf galaxies, or globular clusters which can imprint gaps, clumps, spurs, and asymmetries in tails.
Guillaume Claire   +8 more
doaj   +1 more source

Swarming in stellar streams: Unveiling the structure of the Jhelum stream with ant colony-inspired computation

open access: yesAstronomy & Astrophysics
The halo of the Milky Way galaxy hosts multiple dynamically coherent substructures known as stellar streams that are remnants of tidally disrupted orbiting systems such as globular clusters (GCs) and dwarf galaxies (DGs). A particular case is that of the Jhelum stream, which is known for its unusual and complex morphology. Using the available data from
P. Awad   +10 more
openaire   +3 more sources

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