Results 51 to 60 of about 15,460 (204)

The Magellanic Clouds as the source of gamma-ray bursters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
We present a new model for gamma-ray bursts to explain their isotropic but inhomogeneous space distribution. We propose that the Magellanic Clouds are the source of a special population of gamma-ray-bursting pulsars which are easily ejected from the Clouds and lead to a halo distribution which is homogeneous within a radius of ∼ 50 kpc and falls off ...
Fabian, A, Podsiadlowski, P
openaire   +2 more sources

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

open access: yesAdvanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju   +7 more
wiley   +1 more source

The gamma-ray observatory [PDF]

open access: yes, 1991
An overview is given of the Gamma Ray Observatory (GRO) mission. Detection of gamma rays and gamma ray sources, operations using the Space Shuttle, and instruments aboard the GRO, including the Burst and Transient Source Experiment (BATSE), the Oriented ...

core   +1 more source

Intrinsic and Cosmological Signatures in Gamma-Ray Burst Time Profiles: Time Dilation [PDF]

open access: yes, 2000
The time profiles of many gamma-ray bursts consist of distinct pulses, which offers the possibility of characterizing the temporal structure of these bursts using a relatively small set of pulse shape parameters.
Bloom, Elliott D.   +2 more
core   +3 more sources

Implantable Microarray Patch: Engineering at the Nano and Macro Scale for Sustained Therapeutic Release via Synthetic Biodegradable Polymers

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This review focuses on the application of synthetic biodegradable microarray patches (MAPs) in sustained drug delivery. Compared to conventional MAPs which release drugs into the skin in an immediate manner, these implantable MAPs release drugs into skin microcirculation gradually as the biodegradable polymers degrade, thus offering sustained release ...
Li Zhao   +6 more
wiley   +1 more source

The Neutron Star Merger Delay-time Distribution, R-process “Knees,” and the Metal Budget of the Galaxy

open access: yesThe Astrophysical Journal
For a sample of 18 currently known recycled millisecond pulsars (rMSPs) that are in double neutron star (DNS) systems, and 42 rMSPs with similar properties that are not in DNS pairs, we analyze the distributions of the characteristic age, τ _c , and the ...
Dan Maoz, Ehud Nakar
doaj   +1 more source

Evolution of Black Holes in the Galaxy [PDF]

open access: yes, 1999
In this article we consider the formation and evolution of black holes, especially those in binary stars where radiation from the matter falling on them can be seen.
Armitage   +95 more
core   +3 more sources

Overcoming Printing and Interfacial Challenges in Liquid Metal Direct Writing for Integrated Stretchable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
Liquid metal direct writing is advanced from a technological and fundamental point. Utilizing a kinematic bed, printing on large surfaces with irregularities is enabled. Furthermore, a pressure‐driven flow during printing is discovered that affects the thickness of traces.
Maximilian Krack   +15 more
wiley   +1 more source

SCUBA Sub-Millimeter Observations of Gamma-Ray Bursters [PDF]

open access: yesAIP Conference Proceedings, 2003
We summarize our ongoing program of sub‐millimeter observations of gamma‐ray bursts (GRBs) using the Sub‐millimetre Common‐User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). Sub‐millimeter observations of the early afterglows are of interest because this is where the emission peaks in some bursts in the days to weeks following ...
Smith, I.A.   +6 more
openaire   +3 more sources

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