TY  - BOOK
A1  - Donner, Reik Volker
A1  - Cser, Adrienn
A1  - Schwarz, Udo
A1  - Otto, Andreas H.
A1  - Feudel, Ulrike
T1  - An approach to a process model of laser beam melt ablation using methods of linear and non-linear data analysis
N2  - As a non-contact process laser beam melt ablation offers several advantages compared to conventional processing mechanisms. During ablation the surface of the workpiece is molten by the energy of a CO2-laser beam, this melt is then driven out by the impulse of an additional process gas. Although the idea behind laser beam melt ablation is rather simple, the process itself has a major limitation in practical applications: with increasing ablation rate surface quality of the workpiece processed declines rapidly. With different ablation rates different surface structures can be distinguished, which can be characterised by suitable surface parameters. The corresponding regimes of pattern formation are found in linear and non-linear statistical properties of the recorded process emissions as well. While the ablation rate can be represented in terms of the line-energy, this parameter does not provide sufficient information about the full behaviour of the system. The dynamics of the system is dominated by oscillations due to the laser cycle but includes some periodically driven non-linear processes as well. Upon the basis of the measured time series, a corresponding model is developed. The deeper understanding of the process can be used to develop strategies for a process control.
Y1  - 2004
SN  - 3-527-40430-9
ER  - 
TY  - BOOK
A1  - Donner, Reik Volker
A1  - Cser, Adrienn
A1  - Schwarz, Udo
A1  - Otto, Andreas H.
A1  - Feudel, Ulrike
T1  - An approach to a process model of laser beam melt ablation using methods of linear and non-linear data analysis
N2  - As a non-contact process laser beam melt ablation offers several advantages compared to conventional processing mechanisms. During ablation the surface of the workpiece is molten by the energy of a CO2-laser beam, this melt is then driven out by the impulse of an additional process gas. Although the idea behind laser beam melt ablation is rather simple, the process itself has a major limitation in practical applications: with increasing ablation rate surface quality of the workpiece processed declines rapidly. With different ablation rates different surface structures can be distinguished, which can be characterised by suitable surface parameters. The corresponding regimes of pattern formation are found in linear and non-linear statistical properties of the recorded process emissions as well. While the ablation rate can be represented in terms of the line-energy, this parameter does not provide sufficient information about the full behaviour of the system. The dynamics of the system is dominated by oscillations due to the laser cycle but includes some periodically driven non-linear processes as well. Upon the basis of the measured time series, a corresponding model is developed. The deeper understanding of the process can be used to develop strategies for a process control.
Y1  - 2003
SN  - 3-928921-88-6
ER  - 
TY  - BOOK
A1  - Karg, Detlef
A1  - Schopper, Franz
A1  - Paschke, Ralph
A1  - Meyer, Michael
A1  - Ackermann, Irmgard
A1  - Baxmann, Matthias
A1  - Buchinger, Marie-Luise
A1  - Cante, Marcus
A1  - Dreger, Hans-Joachim
A1  - Gramlich, Sybille
A1  - Schwarz, Ulrike
A1  - Hübener, Dieter
A1  - Metzler, Matthias
A1  - Niemann, Alexander
A1  - Rohowski, Ilona
A1  - Senst, Ingetraud
A1  - Groß, Wera
ED  - Brandenburgisches Landesamt für Denkmalpflege und Archäologisches Landesmuseum, 
T1  - Denkmalentdeckungen
BT  - Bilder aus dem Land Brandenburg
N2  - »Wenn du reisen willst, mußt du die Geschichte dieses Landes kennen und lieben. Das ist ganz unerläßlich. [...] Wag’ es getrost und du wirst es nicht bereuen. Eigentümliche Freuden und Genüsse werden dich begleiten. Du wirst Entdeckungen machen, denn überall wohin du kommst, wirst du, vom Touristenstandpunkt aus, eintreten wie in ›jungfräuliches Land‹. Du wirst Klosterruinen begegnen, von deren Existenz höchstens die nächste Stadt eine leise Kenntnis hatte; du wirst inmitten alter Dorfkirchen, deren zerbröckelter Schindelturm nur auf Elend deutete, große Wandbilder oder in den treppenlosen Grüften reiche Kupfersärge mit Kruzifix und vergoldeten Wappenschildern finden; du wirst Schlachtfelder überschreiten, Wendenkirchhöfe, Heidengräber, von denen die Menschen nichts mehr wissen.«
Die in diesem Bildband gesammelten »Denkmalentdeckungen« verstehen sich als Einladung zu einer Reise durch das Land Brandenburg. Theodor Fontane hatte für ein solches Unternehmen genau den richtigen Blick, als er in seinen »Wanderungen durch die Mark Brandenburg« 1864 diese Sätze schrieb. Auch heute noch sollten wir seiner Anregung zu Begegnungen mit der Geschichte und der Kunstgeschichte des Landes folgen, die uns im Dialog der Kulturen und der Zeiten eine Standortbestimmung in der Gegenwart und eine Orientierung für die Zukunft zugleich bietet.
KW  - Brandenburg
KW  - Denkmal
KW  - Denkmalpflege
KW  - Bildband
KW  - Tourismus
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-72290
SN  - 978-3-88462-244-5
PB  - Wernersche Verlagsgesellschaft
CY  - Worms
ET  - 1200
ER  -