Results 101 to 110 of about 4,722,607 (293)

The X-ray emission mechanism of large scale powerful quasar jets: Fermi rules out IC/CMB for 3C 273.

open access: yesEPJ Web of Conferences, 2013
The process responsible for the Chandra-detected X-ray emission from the large-scale jets of powerful quasars is not clear yet. The two main models are inverse Compton scattering off the cosmic microwave background photons (IC/CMB) and synchrotron ...
Georganopoulos Markos, Meyer Eileen T.
doaj   +1 more source

Feasibility Assessment of Microwave Power Beaming for Small Satellites

open access: yes, 2008
Presented at the 6th International Energy Conversion Engineering Conference in Cleveland, OH.While wireless power transmission to fulfill Earth's energy needs has been widely popularized as a potential application of microwave power beaming, one space ...
Saleh, Joseph H., Lafleur, Jarret M.
core  

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Validation of Laser Power Beaming Applications with Enlarged Laser Beam Diameters Minimizing Hazardous Operation

open access: yes, 2019
Successful implementation of laser power beaming for the wireless transfer of electrical power will enable diverse applications, including extended operation time of remote ground vehicles, aerial drones and remote sensors.
Rizzo, Lou   +3 more
core   +2 more sources

Collisionless Shocks Having Relativistic Velocities in Relativistically Hot Plasmas

open access: yesThe Astrophysical Journal
Shocks in relativistically hot plasmas are thought to exist in various high-energy astrophysical phenomena, but it is not clear how relativistic collisionless shocks are formed, and whether particles are accelerated by the shock as in the case of cold ...
Kazuki Kamiido, Yutaka Ohira
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

A Review on Near-Field and Far-Field Wireless Power Transfer Technologies

open access: yesEnergies
Wireless Power Transfer (WPT) technologies are rapidly maturing, offering alternatives to traditional wired connections in applications ranging from consumer electronics to industrial automation.
Ahmed Badawi   +5 more
doaj   +1 more source

Exploration Mission Enhancements Possible With Power Beaming. [Space Applications Power Beaming]

open access: yes, 1990
A key factor in the exploration and development of the space frontier is the availability of energy where and when it is needed. Currently all space satellites and platforms include self-contained power systems that supply the energy necessary to ...
Bamberger, J. A.   +2 more
core  

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

A predictive framework for realistic star-planet radio emission in compact systems

open access: yesAstronomy & Astrophysics
Context. Radio emission from star-planet interactions (SPIs) beyond our Solar System has yet to be firmly detected, primarily due to weak signals, directional beaming effects, and low-frequency emissions blocked by Earth’s ionosphere.
Chebly J. J.   +4 more
doaj   +1 more source

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