Results 31 to 40 of about 65,394 (259)

The Mass of the Planet-hosting Giant Star Beta Geminorum Determined from its p-mode Oscillation Spectrum [PDF]

, 2012
We use precise radial velocity measurements and photometric data to derive the frequency spacing of the p-mode oscillation spectrum of the planet-hosting star Beta Gem. This spacing along with the interferometric radius for this star is used to derive an
A. F. J. Moffat, A. P. Hatzes, Baudin, Buzasi, Cox, D. B. Guenther, D. Sasselov, da Silva, de Prieto, De Ridder, De Ridder, G. A. H. Walker, Girardi, Gray, Grundahl, Han, Hatzes, Hatzes, Hatzes, Hatzes, Hatzes, J. Matthews, Jørgensen, Kallinger, Kallinger, Kjeldsen, Kürster, M. Döllinger, M. Zechmeister, McWilliam, Mosser, Niedzielski, Nordgren, R. Kuschnig, Reffert, S. M. Rucinski, Sato, Scargle, Setiawan, Stello, Tassoul, van Leeuwen, W. W. Weiss, Walker, Weiss, Xiong   +45 more
core   +2 more sources

Study of variation in dose calculation accuracy between kV cone-beam computed tomography and kV fan-Beam computed tomography

Journal of Medical Physics, 2017
Cone-beam computed tomography (CBCT) images are presently used for geometric verification for daily patient positioning. In this work, we have compared the images of CBCT with the images of conventional fan beam CT (FBCT) in terms of image quality and ...
Venkatesan Kaliyaperumal, C Jomon Raphael, K Mathew Varghese, Paul Gopu, S Sivakumar, Minu Boban, N Arunai Nambi Raj, K Senthilnathan, P Ramesh Babu   +8 more
doaj   +1 more source

X-ray scatter removal for artifact free CT imaging

e-Journal of Nondestructive Testing, 2020
In this paper we present a method to compensate for scattered radiation artifacts. Using a newly developed workflow to determine the scattered radiation, scatter artifacts can be dramatically reduced to a level, where further evaluation of the data becomes possible with state-of-the-art algorithms.
Martin Krenkel, Marco Erler, Stratis Tzoumas, Christoph Kuhn   +3 more
openaire   +1 more source

YOLO-Based Shading Artifact Reduction for CBCT-to-MDCT Translation Using Two-Stage Learning

Mathematics
Cone-beam computed tomography (CBCT) offers advantages of low radiation dose and rapid acquisition but suffers from scatter-induced shading artifacts that limit diagnostic value compared to multi-detector CT (MDCT).
Yangheon Lee, Hyun-Cheol Park
doaj   +1 more source

Optical Activity of Membrane Suspensions: Calculation of Artifacts by Mie Scattering Theory [PDF]

Proceedings of the National Academy of Sciences, 1971
The circular dichroism, optical rotatory dispersion, and optical density of a suspension of erythrocyte ghosts are calculated from the measured optical properties of solubilized ghosts by classical general scattering theory (Mie theory). The ghost is represented by a solvent-filled spherical shell 7 nm (70 Å) thick and 3.5 μm in radius.
D J, Gordon, G, Holzwarth
openaire   +2 more sources

Delay Differential Analysis of Seizures in Multichannel Electrocorticography Data [PDF]

, 2017
High-density electrocorticogram (ECoG) electrodes are capable of recording neurophysiological data with high temporal resolution with wide spatial coverage.
Cash, Sydney S., Lainscsek, Claudia, Sejnowski, Terrence J., Weyhenmeyer, Jonathan   +3 more
core   +1 more source

Crucial parameters for precise copy number variation detection in formalin‐fixed paraffin‐embedded solid cancer samples

Molecular Oncology, EarlyView.
This study shows that copy number variations (CNVs) can be reliably detected in formalin‐fixed paraffin‐embedded (FFPE) solid cancer samples using ultra‐low‐pass whole‐genome sequencing, provided that key (pre)‐analytical parameters are optimized.
Hanne Goris, Vasiliki Siozopoulou, Léon C van Kempen, Anne Sieben, Ella Roelant, Stig Hellemans, Elyne Backx, Laure Sorber, Koen De Winne, Senada Koljenović, Karen Zwaenepoel   +10 more
wiley   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

Artificial Intelligence for Artifact Reduction in Cone Beam Computed Tomographic Images: A Systematic Review

Applied Sciences
Cone beam computed tomography (CBCT) allows for rapid and accessible acquisition of three-dimensional images with a lower radiation dose compared to conventional computed tomography (CT) scans.
Parisa Soltani, Gianrico Spagnuolo, Francesca Angelone, Asal Rezaeiyazdi, Mehdi Mohammadzadeh, Giuseppe Maisto, Amirhossein Moaddabi, Mariangela Cernera, Niccolò Giuseppe Armogida, Francesco Amato, Alfonso Maria Ponsiglione   +10 more
doaj   +1 more source

Environmental Dependence of the Fundamental Plane of Galaxy Clusters

, 1999
Galaxy clusters approximate a planar (FP) distribution in a three-dimensional parameter space which can be characterized by optical luminosity, half-light radius, and X-ray luminosity.
Adami C., Adrian L. Melott, Christopher J. Miller, Dalton G. B., Fritsch C., Katgert P., Nichol R. C., Patrick Gorman, Schaeffer R.   +8 more
core   +1 more source