Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Roentgen"”.
-
Scattering and Absorption of X-rays by Interstellar Dust
… wie sie sich aus deren Wechselwirkung mit Roentgen strahlung ergeben. Tatsaechlich werden Photonen, die von einer entfernten Punktquelle stammen, von den Staubteilchen nicht nur absorbiert sondern auch in Vorwaertsrichtung gestreut. Ich habe mehrere Quellen untersucht, die mit …
-
Recent Developments in X-Rays
… manifold achievements of scientists following Roentgen’s investigations. Many theories have been offered to account for the nature of X-rays though none have satisfactorily explained the phenomena. With the discovery that they can be reflected and diffracted from crystals, increased interest …
-
A Critical Evaluation of Contrast (Pantopaque) Myelography
Not long after Roentgen discovered X-Ray, the idea of outlining various hollow organs with opaque media came into vogue. Two more recent examples of this are myelography and angiocardiography. Both of these are rather ingenious mechanical procedures that have a great appeal to the gadgeteer mind. …
-
Clinical Evaluation of RenografinR76% as a Contrast Medium in Urography
… was the discovery of x-rays by Wilhelm Conrad Roentgen in 1895. This led to the examination of the human body by an indirect method. It was soon learned that internal organs which were diseased could cast an abnormal shadow on an x-ray film. It was further learned that more detailed studies …
-
Measurements of knee rotation in vivo - Development and evaluation of an external device
… was evaluated by simultaneous registrations with roentgen stereometric analysis (RSA) (paper I). The two methods showed high correlations concerning the total knee rotation at 90° and 60° of knee flexion angles with 3, 6 and 9 Nm applied torques. The Rottometer was also concluded to be a reliable …
-
Comprehensive Model of Jupiter's Polar Aurora
… of X-ray emission in 1979. Since then the Roentgen satellite, Chandra X-ray Observatory, and XMM-Newton have distinguished heavy ion (oxygen and sulfur) line emission in the X-ray spectrum and measure a total power of about 1 GW. There have been many attempts to model both bremsstrahlung …
-
X-ray Properties of Galactic Supernova Remnants
In den letzten Jahren wurden 373 ausgedehnte Roentgenquellen in der ROSAT Himmelsdurchmusterung (RASS) als Supernova Ueberreste (SNRs) Kandidaten identifiziert (Busser, 1998). Ein Ziel der vorliegenden Arbeit war die genaue Untersuchung und Identifizierung dieser Galaktischen SNR Kandidaten an Hand …
-
Acetabular Component Migration Following Revision Total Hip Replacement
… Radiostereometric Analysis (RSA) and Ein-Bild Roentgen Analyse (EBRA-Cup) are the only validated methods to measure component migration that can predict long-term survivorship of primary THR implants. The advantage of EBRA-Cup is that it can be performed retrospectively, and therefore, is …