The recently released 105-month {\it Swift}-Burst Alert Telescope (BAT) all-sky hard X-ray survey catalog presents an opportunity to study astrophysical objects detected in the deepest look at the entire hard X-ray (14$-$195 keV) sky. Here we report...
X-ray computed tomography (CT) is widely used in clinical practice. The involved ionizing X-ray radiation, however, could increase cancer risk. Hence, the reduction of the radiation dose has been an important topic in recent years. Few-view CT image...
New images from the Hubble Space Telescope of the FRII radio galaxy Pictor A reveal a number of jet knot candidates which coincide with previously detected radio and x-ray knots. Previous observations in x-ray and radio bands show the entire jet to b...
Chest x-rays are the most common radiology studies for diagnosing lung and heart disease. Hence, a system for automated pre-reporting of pathologic findings on chest x-rays would greatly enhance radiologists' productivity. To this end, we investigate...
Jan 30, 2005 · 1999 Raymond Napa Valley Cabernet Sauvignon Reserve - Very dark reddish-black color. Nose of dark fruit, licorice, and spicy oak. Flavors of dark fruit, stewed cherry, coffee, licorice, …
A comparison of AGN detected at gamma ray energies by EGRET with flat-spectrum radio sources observed in surveys for intraday variability reveals that a remarkably high fraction of EGRET blazars show significant interstellar scintillation at centim...
We present a non-iterative method to deconvolve the spatial response function or the point spread function (PSF) from images taken with the Suzaku X-ray Imaging Spectrometer (XIS). The method is optimized for analyses of extended sources with high...
We describe an instrument that exploits the ongoing revolution in synchrotron sources, optics, and detectors to enable in situ studies of metal-organic vapor phase epitaxy (MOVPE) growth of III-nitride materials using coherent x-ray methods. The syst...
以前喜欢用 Alfred，虽然界面感觉看起有点老气，但自定义这块儿是强的，能搞出各种自动化流程。文件导航和剪切板管理也还将就，但它收费。现在还是觉得 Raycast 更顺手，跟 macOS 风格更搭，功 …
Billy Ray Cyrus and Elizabeth Hurley are still going strong as the one-year anniversary approaches of their iconic Instagram debut. “They’re solid, spending time together in L.A. and very much ...
A light and simple mini photoshop (⭐ 16)
X-ray characterisation methods have undoubtedly enabled cutting-edge advances in all aspects of materials research. Despite the enormous breadth of information that can be extracted from these techniques, the challenge of radiation-induced sample cha...
Jan 30, 2005 · 1999 Raymond Napa Valley Cabernet Sauvignon Reserve - Very dark reddish-black color. Nose of dark fruit, licorice, and spicy oak. Flavors of dark fruit, stewed cherry, coffee, licorice, …
网络舆情分析系统 (⭐ 196)
Based on the Gaia EDR3 astrometric parameters and our new systemic radial velocity of the high-mass X-ray binary 4U 2206+54/BD+53 2790, we studied the trace back motion of the system and propose that it originated in the subgroup of the Cepheus OB1 a...
We present optical photometric and spectroscopic observations of the likely stellar counterpart to the unassociated \emph{Fermi}-Large Area Telescope (LAT) $γ$-ray source 2FGL J0846.0+2820, selected for study based on positional coincidences of opti...
This paper proposes a simple, generic and robust method to extract the grains from experimental tridimensionnal images of granular materials obtained by X-ray tomography. This extraction has two steps: segmentation and splitting. For the segmentati...
The origin of cosmic rays with energies higher than 10$^{20}$ eV remains a mystery. Accelerating particles up to these energies is a challenge even for the most energetic astrophysical objects known. While the isotropy in arrival directions argues...
The standard model of cosmic ray propagation has been very successful in explaining all kinds of the Galactic cosmic ray spectra. However, high precision measurement recently revealed the appreciable discrepancy between data and model expectation, fr...
1 day ago · Rachael Ray is harder to find but hardly slowing down “I wanted to focus more on food the way I want to teach it, talking to people I want to talk to, and being just me.”