We have obtained snapshot images of a transient X-ray source in M31 from Chandra ACIS-I and the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS). The Chandra position of the X-ray nova was R.A.=00:42:56.038 ±0.08, Dec.=+41:12:18.50 ±0.07. The transient was active for at least 6 months. Previous observations set an upper limit before the X-ray outburst, demonstrating variability by...

correctly diagnosed by CT scan have been described.6 Ultrasonography has been advocated in view of its availability, low cost, and high detection rates. One study,3 using porcine eyes, reported an overall IOFB detection rate by ultrasound of 930/O compared with 40°/O by plain x ray. Significantly, Bryden et al's detection rate for Perspex was 96%. Localisation is, of course, less accurate and t...

The X-ray free-electron laser (XFEL) at the Pohang Accelerator Laboratory (PAL), Pohang, South Korea, provides energies of up to 15 keV depending on experimental purpose. Silicon-based devices have been used as diagnostic and detectors for X-rays in stations. Considering recent domestic international circumstances, developing silicon-based in-house is necessary. We developed a silicon p-intrins...

We created different TiO₂-based coatings on silicon nanowires (SiNWs) by using either thermal metallization or atomic layer deposition (ALD). The fabricated surfaces were characterized by X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and reflectivity measurements. Surfaces with different TiO₂ based coating thicknesses were then used for phosphopeptide enric...

The hadronic calorimeter of ATLAS, TileCal, provides a large amount of readout channels (about 10,000). Therefore, track detection may be performed by TileCal when cosmic muons cross the detector. The muon track detection has extensively been used in the TileCal commissioning phase, for both energy and timing calibrations, and it will also be important for background noise removal during nomina...

Osteoporosis screening using dental X-Ray images has been growing an interesting research. Existing methods for osteoporosis screening have been performed using the dental periapical or panoramic in X-Ray images. There was limited research using both the periapical and panoramic due to the expensive cost of obtaining data. This paper presents a combination of the periapical and panoramic images...