Results 11 to 20 of about 130,494 (270)
Image quality improvement in low‐dose chest CT with deep learning image reconstruction
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Objectives To investigate the clinical utility of deep learning image reconstruction (DLIR) for improving image quality in low‐dose chest CT in comparison with 40% adaptive statistical iterative reconstruction‐Veo (ASiR‐V40%) algorithm. Methods This retrospective study included 86 patients who underwent low‐dose CT for lung cancer screening ...
Qian Tian +7 more
wiley +1 more source
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To assess whether the joint application of hybrid iterative reconstruction (HIR) and an adaptive filter (AF) could reduce streak artifacts and improve image quality of neck‐and‐shoulder computed tomography (CT). Methods This study included 96 patients with suspicious neck lesions who underwent a routine nonenhanced scan on a 64‐slice ...
Wenfeng Jin +6 more
wiley +1 more source
Performance analysis of control allocation using data‐driven integral quadratic constraints
Advanced Control for Applications, Volume 4, Issue 4, December 2022., 2022 Abstract A new method is presented for evaluating the performance of a nonlinear control allocation system within a linear control loop. To that end, a worst‐case gain analysis problem is formulated that can be readily solved by means of well‐established methods from robustness analysis using integral quadratic constraints (IQCs).
Manuel Pusch +2 more
wiley +1 more source
MAXI : Monitor of All-sky X-ray Image [PDF]
, 2022 Monitor of All-sky X-ray Image (MAXI) is a Japanese X-ray all-sky monitor onboard the International Space Station (ISS).
arxiv +1 more source
Научный диалог, 2017 The article is devoted to investigation of the role of the semantic opposition “sky - earth” in the novel by B. L. Pasternak “Doctor Zhivago.” The relevance of the topic is justified, firstly, by the need for a more thorough study of the peculiarities of
W. Zou
doaj +1 more source
Российский кардиологический журнал, 2022 Aim. To develop a model for predicting the subclinical carotid atherosclerosis (SCA) in order to refine cardiovascular risk (CVR) using machine learning methods in overweight and obese patients without hypertension, diabetes and/or cardiovascular disease
D. V. Gavrilov +4 more
doaj +1 more source
PSFs for mapping artificial night sky luminance over large territories [PDF]
, 2021 Knowledge of the night sky radiance over a large territory may be valuable informationto identify sites appropriate to astronomical observations or for assessing the impacts ofartificial light at night on ecosystems. Measuring the sky radiance can be a complex endeavourdepending on the desired temporal and spatial resolution.
arxiv +1 more source
A Partial-Sky Gibbs ILC Approach for the Estimation of CMB Posterior over Large Angular Scales of the Sky [PDF]
, 2021 In this article we present a formalism to incorporate the partial-sky maps to the Gibbs ILC algorithm to estimate the joint posterior density of the Cosmic Microwave Background (CMB) signal and the theoretical CMB angular power spectrum given the observed CMB maps.
arxiv +1 more source
Comparative Analysis of Binhu and Cosmic-2 Radio Occultation Data
Remote Sensing, 2022 Global Navigation Satellite System (GNSS) radio occultation (RO) technology has been widely used in Earth atmospheric detection and has a significant impact on numerical weather prediction (NWP), climate detection, and other fields. Cosmic-2 LEO-1 (C2E1)
Hongjie Zhang +7 more
doaj +1 more source
Notas para una cartografía oral del cielo entre los tobas del oeste formoseño
Bulletin de l'Institut Français d'Études Andines, 2017 The purpose of this article is to study the Toba vision of the sky: celestial objects, asterisms, and those phenomena that, from a native perspective, are significantly related to the sky.
Cecilia Paula Gómez
doaj +1 more source