TY  - JOUR
A1  - Mikelskis, Helmut
A1  - Horn, Martin Erik
T1  - Konzeption und Evaluation einer Unterrichtsreihe zur Holographie
Y1  - 2001
SN  - 3-88064-300-8
ER  - 
TY  - JOUR
A1  - Mikelskis, Helmut
T1  - Rettet die Bildung! (auch die naturwissenschaftliche, versteht sich) oder Was heißt Bildung im Informationszeitalter und in der Wissensgesellschaft?
Y1  - 2001
SN  - 3-88064-300-8
ER  - 
TY  - JOUR
A1  - Mikelskis, Helmut
T1  - Schülervorstellungen zur Bildentstehung in Mosambik
Y1  - 2001
SN  - 3-88064-300-8
ER  - 
TY  - JOUR
A1  - Mikelskis, Helmut
T1  - Zukunftsperspektiven der Bildung im Informationszeitalter und in der Wissensgesellschaft
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Mikelskis, Helmut
T1  - Learning interference optics : modelbuilding processes in holography
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Menzel, Ralf
T1  - Photonics : Linear and nonlinear interactions of laser light and matter
Y1  - 2001
SN  - 3-540-67074-2
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hamaciuc, E.
A1  - Bruma, Maria
A1  - Köpnick, Thomas
A1  - Kaminorz, Yvette
A1  - Schulz, Burkhard
T1  - Synthesis and Study of New Silicon-containing Polyoxadiazoles
N2  - A series of new poly-1,3,4-oxadiazoles has been synthesized by polycondensation reaction of hydrazine sulfate with a mixture of a dicarboxylic acid containing unsaturated bonds and a dicarboxylic acid containing silicon, by using methanesulfonic acid/phosphorus pentoxide as a reaction medium. These polymers were highly thermostable but they were only soluble in strong inorganic acids such as sulfuric or methanesulfonic ones. An alternative way was followed by using the corresponding dihydrazides containing unsaturated bonds and the corresponding diacid chloride containing silicon that reacted in N-methylpyrrolidinone (NMP) to give soluble silicon-containing unsaturated polyhydrazides, which were cyclodehydrated either by thermal or chemical treatment to give the corresponding polyoxadiazoles. Very thin coatings of polyhydrazides and polyoxadiazoles were deposited onto silicon wafers and they showed a very smooth surface, free of pinholes, when studied by atomic force microscopy (AFM). Some polyoxadiazole films showed strong blue photoluminescence.
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Demircan, Ayhan
A1  - Seehafer, Norbert
T1  - Nonlinear square patterns in Rayleigh-Benard convection
N2  - We numerically investigate nonlinear asymmetric square patterns in a horizontal convection layer with up-down reflection symmetry. As a novel feature we find the patterns to appear via the skewed varicose instability of rolls. The time-independent nonlinear state is generated by two unstable checkerboard (symmetric square) patterns and their nonlinear interaction. As the bouyancy forces increase the interacting modes give rise to bifurcations leading to a periodic alternation between a nonequilateral hexagonal pattern and the square pattern or to different kinds of standing oscillations.
Y1  - 2001
UR  - http://www.edpsciences.com/articles/euro/full/2001/02/6376/6376.html
ER  - 
TY  - JOUR
A1  - Wellstein, Stephan
A1  - Langer, Norbert
T1  - Constraints on the initial mass limit for black hole information from the massive X-ray binary Wray 977
Y1  - 2001
SN  - 3-540-41581-5
ER  -