Results 131 to 140 of about 97,045 (300)

Field‐Driven Activation of Solid‐State Devices in Open Circuits for Energy Harvesting and Wireless Sensing

open access: yesAdvanced Science, EarlyView.
Time‐varying electric fields can activate solid‐state devices such as LEDs and capacitors for energy harvesting and powering in open circuits. The response of solid‐state devices to time‐varying electric fields caused by vibrations can be utilised for smart sensing of human motions and object vibrations.
Renyun Zhang   +6 more
wiley   +1 more source

Semi-Empirical Determination of the Mass Distribution of Horizontal Branch Stars in M3

open access: yes, 2009
We determine, by means of a semi-empirical study, the masses of horizontal branch stars in the globular cluster M3 (NGC 5272). We used the most recent and reliable observational datasets (broadband BVI photometry) available for the cluster, both for ...
Valcarce, A., Catelan , Marcio
core   +1 more source

Noninvasive Focal Gene Delivery into the Cerebellum of Non‐Human Primates using Focused Ultrasound

open access: yesAdvanced Science, EarlyView.
Focal and non‐invasive viral vector delivery in non‐human primates remains a major challenge in translational neuroscience. Low‐intensity focused ultrasound was used to transiently open the blood–brain barrier and enable targeted gene delivery to the cerebellum.
Noelia Esteban‐García   +11 more
wiley   +1 more source

Stars on the ascending helium giant branch

open access: yesAstronomy & Astrophysics
Hot subdwarf stars with masses above 0.8 M⊙ ascend the helium giant branch after the end of core helium burning, before entering the white dwarf cooling track or exploding as type Ib/c supernovae.
Pritzkuleit M.   +5 more
doaj   +1 more source

Hydrogen-Rich Models for Horizontal-Branch and Post-Horizontal Stars

open access: yesThe Astrophysical Journal, 1971
Horizontal and post-horizontal branch hydrogen rich stellar atmospheric models, presenting emergent fluxes and H and He line ...
openaire   +1 more source

Topology‐Enriched Toughness Enhancement in Quasi‐Periodic Metastructures Featuring Tailorable Strong‐Weak Network

open access: yesAdvanced Science, EarlyView.
A quasi‐periodic Dart‐Kite (QDK) metastructure with a golden‐ratio‐constrained strong–weak bond network simultaneously enhances strength, toughness, and damage tolerance. Its distributed topology enables predictable, tailorable crack paths for precise fracture control and stable mechanics, demonstrating a high‐performance, controllable architecture ...
Tianyu Gao   +3 more
wiley   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

open access: yesAdvanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh   +8 more
wiley   +1 more source

Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2001
Red giant branch shape and the luminosity of horizontal branch on the (V-I)-V CMD are used to derive the metallcity of the globular cluster NGC 5053. The metallicities of NGC 5053 derived by SMR method ([Fe/H]=-2.62+-0.07) and the relation between [Fe/H]
Young-Jong Sohn
doaj  

Horizontal-Branch Morphology as an Age Indicator

open access: yes, 2001
3 pages, 2 figures, to appear in the Proceedings of the Conference "Astrophysical Ages and Timescales", ASP conference Series, edited by T.von Hippel, N.Mansen and C ...
Lee, Young-Wook   +3 more
openaire   +2 more sources

The horizontal branch of NGC1851: constraints from its RR Lyrae variables

open access: yes, 2012
We use the pulsational properties of the RR Lyrae variables in the globular cluster NGC1851 to obtain detailed constraints of the various sub-stellar populations present along its horizontal branch.
Cassisi, Santi   +7 more
core   +1 more source

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