Search results for "Inclination angle"

showing 3 items of 3 documents

NuSTARandXMM–Newtonbroad-band spectrum of SAX J1808.4–3658 during its latest outburst in 2015

2018

The first discovered accreting millisecond pulsar, SAX J1808.4-3658, went into X-ray outburst in April 2015. We triggered a 100 ks XMM-Newton ToO, taken at the peak of the outburst, and a 55 ks NuSTAR ToO, performed four days apart. We report here the results of a detailed spectral analysis of both the XMM-Newton and NuSTAR spectra. While the XMM-Newton spectrum appears much softer than in previous observations, the NuSTAR spectrum confirms the results obtained with XMM-Newton during the 2008 outburst. We find clear evidence of a broad iron line that we interpret as produced by reflection from the inner accretion disk. For the first time, we use a self-consistent reflection model to fit the…

High Energy Astrophysical Phenomena (astro-ph.HE)line: formation line: identification stars: individual: SAX J1808.4-3658 stars: magnetic fields stars: neutron X-rays: binaries X-rays: generalPhysics010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesBroad bandAstronomy and AstrophysicsAstrophysics01 natural sciencesSpectral lineRadial velocityNeutron starSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceMillisecond pulsarInclination angle0103 physical sciencesSpectral analysisAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysicsLine (formation)Monthly Notices of the Royal Astronomical Society
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New stage-discharge relationship for inclined non-rectangular weirs

2018

Abstract In this paper, the outflow process of inclined non-rectangular weirs is studied applying the dimensional analysis and the incomplete self-similarity theory. At first, a new stage-discharge equation, applicable for the non-rectangular weirs having a different geometrical shape (parabolic, semicircular, inverted semicircular), is theoretically deduced using a characteristic width. Then, this power stage-discharge relationship (Eq. (17) ) is calibrated and tested using measurements carried out by Raiknar for parabolic, semicircular and inverted semicircular weirs having different inclination respect to the vertical (10°, 20°, 30°, 40° and 45°). For each geometrical shape, the analysis…

Stage-discharge0208 environmental biotechnologyComputer Science Applications1707 Computer Vision and Pattern RecognitionGeometry04 agricultural and veterinary sciences02 engineering and technologyOpen channel flow020801 environmental engineeringComputer Science ApplicationsPower (physics)Modeling and SimulationInclination angleWeir040103 agronomy & agricultureExponentInclined weir0401 agriculture forestry and fisheriesOutflowStage (hydrology)Buckingham theoremElectrical and Electronic EngineeringConstant (mathematics)InstrumentationMathematicsFlow Measurement and Instrumentation
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Messung der Pfannenwanderung bei zementfreien Hüftimplantaten

1998

PURPOSE Migration measurements of acetabular components using a special computer aided method (EBRA = abbreviation for the German term "Ein-Bild-Rontgenanalyse") were performed to evaluate early results of the implants and predict aseptic loosening. METHODS Standard ap-radiographs of the pelvis were marked, specific points were digitised. Simulating the spatial situation the programme computes longitudinal and vertical migration of the cup. 74 acetabular components in 71 patients could be studied by migration measurements. RESULTS 14 patients showed migration of more than 1 mm, which is the confidence limit of this method. Each of these patients showed diverse reasons for the migration, i.e…

medicine.medical_specialtybusiness.industryOsteoporosisAseptic looseningDentistrymedicine.diseaseAcetabulummedicine.anatomical_structureInclination angleOrthopedic surgerymedicineRadiology Nuclear Medicine and imagingImplantbusinessCongenital dysplasiaPelvisRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren
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