We think that this is an important report because here, for the first time, extensive experimental results and analytical details are presented which strongly support the Lüneburg Theory of the Geometry of Binocular Visual Space. This is a terminal report on research done under contract with the Office of Naval Research (N6onril7119; NR 143-638). The work is being terminated because of our inability to acquire and retain adequate personnel with the highly technical skills necessary for such work. A very high degree of mathematical analytical ability must be in constant and harmonious rapport with an equally high degree of laboratory experimental skills in order to carry out these investigations. In the untimely death of Rudolph Lüneburg we suffered an extremely severe loss. After a lapse of two years we were fortunate in acquiring through Professor Richard Courant one of Dr. Luneburg's associates, Dr. Albert A. Blank, who has shown brilliance in his mathematical attack. All the new mathematical analysis herein described and most of the formulation of this report are due to his effcrts. Our mathematical consultant, Dr. Paul Boeder, has given much time and enthusiastic encouragement to our working staff. Professor H.S.M. Coxeter, as a specialist in the non-euclidean geometries, contributed important suggestions which were partly carried out in the ancillary investigations of Dr. Charles Campbell who earned tb* D. Sc. degree for his part in this research. Dr. Bernard Altschuler and Dr. Anna Stein spent respectively one year and two years in the mathematical analyses during the early part of the study. The largest part of the actual experimentation was carried out by Dr. Gertrude Rand and Miss M. Catherine Rirtler.
In der vorliegenden Arbeit wird eine Theorie der StrSmungsdoppelbreehung der Kolloide entwickelt. Da StrSmungsdoppelbreehung durch Orientierung st~bchen-fSrmiger Teflchen zustande kommt, wird in dem ersten Abschnitt die Biehtungsverteilung ~ der Teflehen eines zwischen zwei koaxialen Zylindern liegenden Flik~sigkeitsbereichs diskutiert. Zwei die Richtungs~nderung eines Teflchens bestimmende Einfliisse werden in Betraeht gezogen: 1. die einer Orientierung entgegenwirkende Brownsche Bewegung, 2. die auf die Teilchen orientierend wirkende Seherbewegung, die dureh ROtation des einen Zylinders zustande kommt. W~hrend das ebene Verteilungsproblem vollst~ndig gelSst wird, 151~t sich wegen der Kompliziertheit der DifferentiMgleiehung des r~umliehen Problems nur eine N~herungsl6sung ffir kleine Werte des Parameters ~ angeben, wo der Quotient fl/D ist (Sehergesehwindigkeit durch Diffusionskonstante). --Im zweiten Teil wird die LSsung des Verteilungsproblems optiseh interpretiert : d.h. es wird angegeben, welcher Betrag der Doppe]brechung O und welcher Ausl6schwinkel z einer beliebigen Riehtungsverteilung ~ entsprieht. Da die Hauptformeln O = O (~), 7. = ;~ (~r als unabhiingige Variable enthalten, ergibt sieh des Hauptresultat der Arbeit, n~mlieh die Bestimmung yon D mittels einer einzigen Messung des zu einer bekannten Sehergesehwindigkeit fl gehSrigen AuslSsehwinkels Z. --Im dritten Teil werden Versuehsergebnisse angegeben und mit der Theorie verg]ichen.Einleitung.
The role of structural shielding mass in the design, verification, and in-flight performance of International Space Station (ISS), in both the natural and induced orbital ionizing radiation (IR) environments, is reported.
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