A5079108174- Astro and Planetary Science
- Planetary Science and Exploration
- Lung Cancer Diagnosis and Treatment
- Spacecraft and Cryogenic Technologies
- Remote Sensing in Agriculture
- Tracheal and airway disorders
- Medical Imaging Techniques and Applications
- Advanced X-ray and CT Imaging
- Space Exploration and Technology
- Atmospheric aerosols and clouds
- Computer Graphics and Visualization Techniques
- 3D Shape Modeling and Analysis
- Remote Sensing and LiDAR Applications
- Digital Image Processing Techniques
- Radiation Dose and Imaging
- Spacecraft Design and Technology
- Urban Heat Island Mitigation
- Robotics and Sensor-Based Localization
- Space Science and Extraterrestrial Life
- Anatomy and Medical Technology
- Digital Radiography and Breast Imaging
- Medical Image Segmentation Techniques
- Calibration and Measurement Techniques
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
European Space Astronomy Centre
2008-2024
Siemens Healthcare (Germany)
2001-2024
Siemens (United States)
2005-2023
Engineering Science Analysis (United States)
2023
European Space Operations Centre
2023
University of Leicester
2023
Graz University of Technology
2021
Signal Processing (United States)
2013-2021
European Space Agency
2017
Siemens Healthcare (United States)
2012-2016
Information on land surface properties finds applications in a range of areas related to weather forecasting, environmental research, hazard management and climate monitoring. Remotely sensed observations yield the only means supplying information with adequate time sampling wide spatial coverage. The aim Satellite Application Facility for Land Surface Analysis (Land-SAF) is take full advantage remotely data support land, land–atmosphere biosphere applications, emphasis development...
Detection of rotator cuff tears, a common cause shoulder disability, can be time-consuming and subject to reader variability. Deep learning (DL) has the potential increase radiologist accuracy consistency.The aim this study was develop prototype DL model for detection classification tears on magnetic resonance imaging into no tear, partial-thickness or full-thickness tear.This Health Insurance Portability Accountability Act-compliant, institutional review board-approved included total 11,925...
We propose a solution to the problem of 3D reconstruction from cross-sections, based on Delaunay triangulation object contours. Its properties--especially close relationship medial axis--enable us do compact tetrahedrization resulting in nearest-neighbor connection. The complex shapes is improved by adding vertices and inside
Land surface albedo determines the repartition of downwelling solar radiation into components that are either reflected back to atmosphere or absorbed by surface. As more sophisticated soil-vegetation-atmosphere transfer schemes being implemented in numerical meteorological models, it will become increasingly important accurately characterize spatial and temporal variations. Within scope European Organisation for Exploitation Meteorological Satellites (EUMETSAT) Satellite Application...
Abstract The EUMETSAT Satellite Application Facility for Land Surface Analysis operationally delivers estimates of the downwelling shortwave radiation flux, which constitutes an important variable characterising surface energy budget. product is derived from observations provided by SEVIRI instrument onboard geostationary satellites Meteosat Second Generation series. spatial coverage includes Europe, Africa, Middle East, and parts South America. It generated every 30 min distributed to users...
Context. The Rosetta spacecraft is escorting comet 67P/Churyumov-Gerasimenko from a heliocentric distance of >3.6 AU, where the activity was low, until perihelion at 1.24 AU. Initially, solar wind permeates thin atmosphere formed sublimation.
On 2016 Feb 19, nine Rosetta instruments serendipitously observed an outburst of gas and dust from the nucleus comet 67P/Churyumov-Gerasimenko. Among these were cameras spectrometers ranging UV over visible to microwave wavelengths, in situ gas, plasma instruments, one collector. At 09:40 a cloud developed at edge image shadowed region nucleus. Over next two hours recorded signature that significantly exceeded background. The enhancement ranged 50 per cent neutral density factors >100...
Chronic lung diseases are a major issue in public health. A serial pulmonary assessment using imaging techniques free of ionizing radiation and which provides early information on local function impairment would therefore be considerably important development. Magnetic resonance (MRI) is powerful tool for the static dynamic many organs. Its application however, has been limited due to low water content artefacts evident at air-tissue interfaces. Many attempts have made visualize ventilation...
Downward short- and longwave incoming irradiances play a key role in the radiation budget at Earth's surface. Monitoring these parameters is essential for understanding basic mechanisms involved climate change, such as greenhouse effect, global dimming, changes cloud cover precipitation. Geostationary satellite observations are important retrieval of irradiance surface, providing excellent spatial temporal coverage. Three decentralized Satellite Application Facilities (SAFs) currently...
On 3 July 2016, several instruments on board ESA's Rosetta spacecraft detected signs of an outburst event comet 67P, at a heliocentric distance 3.32 AU from the sun, outbound perihelion. We here report inferred properties ejected dust and surface change site outburst. The activity coincided with local sunrise continued over time interval 14 - 68 minutes. It left 10m-sized icy patch surface. material comprised refractory grains hundred microns in size, sub-micron-sized water ice grains. high...
The OSIRIS (optical, spectroscopic and infrared remote imaging system) instrument on board the ESA Rosetta spacecraft collected data of 67P/Churyumov–Gerasimenko for over 2 yr. consists two cameras, a Narrow Angle Camera Wide Camera. For specific sequences related to observation dust aggregates in 67P's coma, cameras were operating simultaneously. are mounted 0.7 m apart from each other, as result this baseline yields parallax shift apparent particle trails analysed images directly...
The practical aspects of the dosimetric and imaging performance a digital x-ray system for cardiology procedures were evaluated. was configured with an image intensifier (II) later upgraded to dynamic flat panel detector (FD). Entrance surface air kerma (ESAK) phantoms 16, 20, 24 28 cm polymethyl methacrylate (PMMA) quality test object measured. Images evaluated directly on monitor numerical methods (noise signal-to-noise ratio). Information contained in DICOM header dosimetry audit purposes...
Enzyme replacement therapy was attempted with two Tay-Sachs-diseased individuals—a 14- month-old child and a 7-week-old infant. Treatment consisted of repeated weekly intrathecal injections pure hexosaminidase A. Injection this enzyme resulted in almost complete disappearance GM2 from the serum, but did not bring about dissolution membranous cytoplasmic bodies brain, as detected by electronmicroscopy. Both patients tolerated treatment without apparent clinical complications, no clear-cut...
Abstract Launched on 2 June 2003 and arriving at Mars 25 December after a 7-month interplanetary cruise, Express was the European Space Agency’s first mission to arrive another planet. After more than 20 years in orbit, spacecraft science payload remain good health has become second oldest operational planetary orbiter Odyssey. This contribution summarizes operations, planning data archiving systems, processes, teams that are necessary run mission, plan scientific observations, execute all...
The BepiColombo mission, a cornerstone of the European Space Agency's (ESA) Cosmic Vision program in collaboration with Japan Aerospace Exploration Agency (JAXA), represents an ambitious endeavor to deepen our understanding Mercury. It uniquely combines Mercury Planetary Orbiter (MPO) and Magnetospheric (Mio) investigate Mercury’s interaction solar wind, its geological history, magnetic environment. mission seeks address fundamental questions about evolution terrestrial planets,...
Demonstration of a technique for three-dimensional (3-D) assessment tracheal-stenoses, regarding site, length and degree, based on spiral computed tomography (S-CT). S-CT scanning automated segmentation the laryngo-tracheal tract (LTT) was followed by extraction LTT medial axis using skeletonization algorithm. Orthogonal to 3-D cross-sectional profile presented as line charts, where degree obtained. Values both parameters were compared between 36 patients 18 normal controls separately....
Spahn M, Strotzer Völk et al. Digital radiography with a large-area, amorphous-silicon, flat-panel x-ray detector system. Invest Radiol 2000;35:260–266. RATIONALE AND OBJECTIVES. To investigate the image quality of digital system an detector. METHODS. A based on matrix amorphous silicon was integrated into projection The scintillator consisted layer structured cesium iodide. active size 30002 pixels together pixel 143 μm provided large area 43 × cm2. Basic parameters such as detective...