Results 51 to 60 of about 6,293,690 (277)

A Stationary-Sources and Rotating-Detectors Computed Tomography Architecture for Higher Temporal Resolution and Lower Radiation Dose

IEEE Access, 2014
In current computed tomography (CT) architecture, both X-ray tubes and X-ray detectors are rotated mechanically around an object to collect a sufficient number of projections.
Guohua Cao, Baodong Liu, Hao Gong, Hengyong Yu, Ge Wang   +4 more
doaj   +1 more source

Medical Applications of Tissue-Equivalent, Organic-Based Flexible Direct X-Ray Detectors

Frontiers in Physics, 2020
The aim of this study is to assess direct X-ray detectors based on organic thin films, fabricated onto flexible plastic substrates, and operating at ultra-low bias (<1 V), for different medical applications.
Laura Basiricò, Laura Basiricò, Andrea Ciavatti, Andrea Ciavatti, Ilaria Fratelli, Ilaria Fratelli, Diego Dreossi, Giuliana Tromba, Stefano Lai, Piero Cosseddu, Annalisa Bonfiglio, Francesco Mariotti, Carlo Dalla Val, Valerio Bellucci, John E. Anthony, Beatrice Fraboni, Beatrice Fraboni   +16 more
doaj   +1 more source

X-Ray Detectors

, 2004
This chapter contains sections titled: Semiconductor Detectors for (Imaging) X‐ray Spectroscopy Gas Proportional Scintillation Counters for X‐ray Spectrometry Superconducting Tunnel Junctions Cryogenic Microcalorimeters Position Sensitive Semiconductor ...
P. Lechner, P. Gryboś, G. Lutz, E. Figueroa-Feliciano, Figueroa‐Feliciano, E, Da̧browski, W, Soltau, H, Kurakado, M, Strüder, L, W. Da̧browski, Galeazzi, M, Gryboś, P, M. Kurakado, C. A. N. Conde, M. Galeazzi, L. Strüder, Conde, C. A. N, Holl, P, Lechner, P, H. Soltau, P. Holl, Lutz, G   +21 more
core   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

MOS CCDs for the wide field imager on the XEUS spacecraft [PDF]

, 2005
In recent years the XEUS mission concept has evolved and has been the subject of several industrial studies. The mission concept has now matured to the point that it could be proposed for a Phase A study and subsequent flight programme.
Hutchinson, I, C Castelli, D. Burt, R. Ambrosi, Ambrosi, RM, A. D. Holland, P. Pool, M. French, Holland, AD, Burt, DJ, Pool, P, D. R. Smith, I. Hutchinson, French, M, J. Calafell, Castelli, C, Smith, DR, Calafell, J   +17 more
core   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Solution-Grown MAPbBr₃ Single Crystals for Self-Powered Detection of X-rays with High Energies above One Megaelectron Volt

Nanomaterials, 2023
Perovskite single crystals are actively studied as X-ray detection materials with enhanced sensitivity. Moreover, the feasibility of using perovskites for self-powered devices such as photodetectors, UV detectors, and X-ray detectors can significantly ...
Beomjun Park, Juyoung Ko, Jangwon Byun, Sandeep Pandey, Byungdo Park, Jeongho Kim, Man-Jong Lee   +6 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Enhanced colour encoding of materials discrimination information for multiple view dual-energy x-ray imaging [PDF]

, 2009
This thesis reports an investigation into dual-energy X-ray discrimination techniques. These techniques are designed to provide colour-coded materials discrimination information in a sequence of perspective images exhibiting sequential parallax.
Wang, X
core