Results 31 to 40 of about 1,110,290 (291)
X-Ray Emission from the Pre-Planetary Nebula Henize 3-1475 [PDF]
, 2003 We report the first detection of X-ray emission in a pre-planetary nebula, Hen 3-1475. Pre-planetary nebulae are rare objects in the short transition stage between the Asymptotic Giant Branch and planetary nebula evolutionary phases, and Hen 3-1475 ...
Blackman, Eric G. +4 more
core +3 more sources
Sensors, 2022 With the prevalence of degenerative diseases due to the increase in the aging population, we have encountered many spine-related disorders. Since the spine is a crucial part of the body, fast and accurate diagnosis is critically important.
Chang-Hyeon An +3 more
doaj +1 more source
XRIndex:a brief screening tool for individual differences in security threat detection in x-ray images [PDF]
, 2015 X-ray imaging is a cost-effective technique at security checkpoints that typically require the presence of human operators. We have previously shown that self-reported attention to detail can predict threat detection performance with small-vehicle x-ray ...
Ferri, Francesca +3 more
core +4 more sources
Gravitational Lensing of the X-Ray Background by Clusters of Galaxies [PDF]
, 1996 Gravitational lensing by clusters of galaxies affects the cosmic X-ray background (XRB) by altering the observed density and flux distribution of background X-ray sources. At faint detection flux thresholds, the resolved X-ray sources appear brighter and
Abraham Loeb +14 more
core +2 more sources
Luminescent and Scintillating Properties of Lanthanum Fluoride Nanocrystals in Response to Gamma/Neutron Irradiation: Codoping with Ce Activator, Yb Wavelength Shifter, and Gd Neutron Captor [PDF]
, 2016 A novel concept for detection and spectroscopy of gamma rays, and detection of thermal neutrons based on codoped lanthanum fluoride nanocrystals containing gadolinium is presented.The trends of colloidal synthesis of the mentioned material, LaF3 co-doped
Blostein, Juan Jerónimo +5 more
core +2 more sources
X-ray detected optical activity
Comptes Rendus. Physique, 2008 Optical Activity (OA) was only measured quite recently in the X-ray range using electric dipole–electric quadrupole interference terms that mix multipoles of opposite parity but are only present in systems with broken inversion symmetry. Natural OA refers to effects that are even with respect to time-reversal symmetry, whereas non-reciprocal OA is ...
Andrei Rogalev +2 more
openaire +1 more source
Image analysis algorithm of X-ray detection system for conveyor belt with steel rope core
Gong-kuang zidonghua, 2014 A kind of image analysis algorithm combining on-line analysis and off-line analysis was proposed: SVM was adopted to detect conjunctions images, and saliency map was used to check image of damaged belt during on-line analysis phase; Image processing ...
ZHU Ping, HU Peng, SUN Jian
doaj +1 more source
X-rays from HH210 in the Orion nebula [PDF]
, 2006 We report the detection during the Chandra Orion Ultradeep Project (COUP) of two soft, constant, and faint X-ray sources associated with the Herbig-Haro object HH210.
Bally, John +5 more
core +5 more sources
Eos, Transactions American Geophysical Union, 1980 Investigators, studying data from NASA's second High Energy Astronomy Observatory, have confirmed the emission of X rays from Jupiter. The giant planet thus joins earth as the only planets known to produce X rays. The X ray emission was confirmed by a team led by Albert Metzger of the Jet Propulsion Laboratory.
openaire +2 more sources
COVID-19 Detection via Ultra-Low-Dose X-ray Images Enabled by Deep Learning
Bioengineering, 2023 The detection of Coronavirus disease 2019 (COVID-19) is crucial for controlling the spread of the virus. Current research utilizes X-ray imaging and artificial intelligence for COVID-19 diagnosis.
Isah Salim Ahmad +11 more
doaj +1 more source