Jänschwalde und die Gliederung des Saale-Komplexes - ein Kommentar zum Beitrag von WERNER NOWEL

Die Ansichten der Autoren zur Stratifizierung des Saale-Komplexes stehen teilweise im Widerspruch zu den Auffassungen von Werner Nowel. Besondere Bedeutung kommt hierfür dem Tranitz-Fluviatil als litho- und klimastratigraphischer Leithorizont zu, dei von uns unterhalb des saalezeitlichen Drentheglazialj eingestuft wird im Gegensatz zur Nowelschen Einstufung oberhalb des saalezeitlichen Drentheglazials.researc

Die provincia Nice – ein slawischer Kleingau an der Neiße

As Thietmar of Merseburg reports in his well-known chronicle, King Henry II set up a camp iuxta Sprewam flivium in the provincia Nice during his campaign against Bolesław Chrobry of Poland in the year 1005. Up to now, historians and onomasticians have not agreed on where to locate Nice. Some see it as a Slavic settlement area around the town of Forst on the Neisse river; others, however, equate the provincia Nice with the pagus Selpoli, a Slavic tribal area on the Lubst river (Polish Lubsza) a right tributary of the lower Neisse river. A thorough analysis of the historical, onomastical und archaeological facts leads to the conclusion that in the region around Forst, especially in the south, a small Slavic settlement area extended along the left bank of the Neisse river. This is also indicated by the fact that there is a concentration not only of older Slavic place name types, but also of surnames typical only for this region. Although they developed in later times, they are a sign of an older settlement community. Moreover, archaeological finds from the middle and late Slavic periods point to a settlement region which is clearly confined by areas lacking any finds at all.Wie Thietmar von Merseburg in seiner bekannten Chronik berichtet, schlug Heinrich II. auf seinem Feldzug gegen Bolesław Chrobry von Polen im Jahre 1005 iuxta Sprewam fluvium in der provincia Nice ein Lager auf. Bis heute sind sich Historiker und Namenforscher nicht einig, wo Nice zu lokalisieren ist. Manche sehen darin ein slawisches Siedlungsgebiet um Forst an der Neiße, andere wiederum setzen Nice mit dem pagus Selpoli, einem slawischen Wohngau an der Lubst, poln. Lubsza, einem rechten Zufluß der unteren Neiße, gleich. Eine genaue Analyse der historischen, namenkundlichen und archäologischen Zusammenhänge führte zu dem Schluss, dass sich in der Gegend um Forst, besonders südlich davon, einst ein slawischer Kleingau am linken Ufer der Neiße erstreckte, denn dort konzentrieren sich nicht nur ältere slawische Ortsnamentypen, sondern es finden sich aus späterer Zeit auch nur für diesen Raum typische Zunamen, die auf eine ältere Siedlergemeinschaft hindeuten. Darüber hinaus lassen Bodenfunde aus mitt el- und spätslawischer Zeit auf eine Siedlungskammer schließen, die sich durch fundleere Räume deutlich gegen den Gau Luzici und den Gau Selpoli abgrenzt

Multi-wire interconnection of busbar-free solar cells

The interconnection of busbar-free solar cells by multiple wires is a simple and evolutionary concept to lower the cost of PV modules by reducing silver consumption for the front side metallization and to increase the module efficiency by lower series resistance and improved light harvesting. A 0.33 % absolute higher performance of MBB against the established H-pattern solar cell has already been demonstrated by Braun [1]. This work focuses on the interconnection of Multi Busbar cells (MBB) by infrared soldering and the optimization of the front metallization design in order to achieve reliable solder joints. We find the following factors to be crucial for the MBB-interconnection process: a homogeneous radiation field, a process-adapted downholder device, a homogeneous wire coating, a precise wire positioning and a method to absorb the wire expansion caused by the elevated solder temperatures. We measure peel forces up to 5.7 N/mm as the average peel force value of five pad rows from the center of two MBB cells containing 160 soldered pads. Furthermore a one-cell MBB-module shows a more homogeneous series resistance with an approximately 0.3 Omega cm(2) lower series resistance compared to a one-cell 3-busbar module, which we determine by C-DCR (coupled determination of the dark saturation current and the series resistance). Finally two 20-cell MBB modules manufactured with an automated MBB-stringer pass the TC-200 test without significant changes in IV, EL and module optical appearance

Growth of (Ga,Mn)As on GaAs(001) and (311)A in a high-mobility MBE system

We demonstrate the possibility to produce both GaAs/AlGaAs heterostructures with high electron mobilities and (Ga,Mn)As by molecular beam epitaxy (MBE) in the same growth chamber. The (Ga,Mn)As samples have been grown on (0 0 1) and (3 1 1)A GaAs substrates and show state of the art quality. Immediately after (Ga,Mn)As growth, two-dimensional electron systems have been produced which show electron mobilities of up to . Photoluminescence measurements reveal that no manganese has been incorporated into these samples. Magnetotransport measurements on (Ga,Mn)As samples show an anomalous Hall effect if the magnetic field is oriented perpendicular to the sample surface and a giant planar Hall effect if the field is parallel to the surface. By rotating the sample in the field, the magnetic anisotropy of the samples can be analyzed. The high quality GaAs/AlGaAs heterostructures that can be produced in the same MBE system provide an excellent basis for future experiments combining high-mobility heterostructures with ferromagnetic semiconductors