@inproceedings{7822, author = {{Engels, Gregor}}, booktitle = {{Tagungsband GI-Fachtagung "Interaktive Schnittstellen für Informationssysteme", TU Clausthal, Notizen zu Interaktive Systeme}}, pages = {{1--16}}, title = {{{CADDY-O: Syntaxgestütztes, graphisches Entwerfen konzeptioneller Datenbankschemata}}}, volume = {{18}}, year = {{1989}}, } @inproceedings{7823, author = {{Engels, Gregor and Hohenstein, Uwe and Hülsmann, Klaus and Löhr-Richter, Perdita and Ehrich, Hans-Dietrich}}, booktitle = {{Proceedings of the International Conference on System Development Environments & Factories, Berlin, Germany}}, publisher = {{Pitman Publishing}}, title = {{{CADDY: Computer-Aided Design of Non-Standard Databases}}}, year = {{1989}}, } @techreport{8187, author = {{Engels, Gregor}}, publisher = {{TU Braunschweig}}, title = {{{Benutzerschnittstelle und Architektur der integrierten Datenbankentwurfsumgebung CADDY (Kurzfassung)}}}, year = {{1989}}, } @book{7511, author = {{Engels, Gregor and Schäfer, Wilhelm}}, publisher = {{Teubner}}, title = {{{Programmentwicklungsumgebungen: Konzepte und Realisierung}}}, year = {{1989}}, } @article{16682, author = {{Dellnitz, Michael and Werner, Bodo}}, issn = {{0377-0427}}, journal = {{Journal of Computational and Applied Mathematics}}, pages = {{97--123}}, title = {{{Computational methods for bifurcation problems with symmetries—with special attention to steady state and Hopf bifurcation points}}}, doi = {{10.1016/0377-0427(89)90150-7}}, year = {{1989}}, } @article{16743, author = {{Just, Bettina and Meyer auf der Heide, Friedhelm and Wigderson, Avi}}, issn = {{0988-3754}}, journal = {{RAIRO - Theoretical Informatics and Applications}}, pages = {{101--111}}, title = {{{On computations with integer division}}}, doi = {{10.1051/ita/1989230101011}}, year = {{1989}}, } @inproceedings{16744, author = {{Dietzfelbinger, M. and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the first annual ACM symposium on Parallel algorithms and architectures - SPAA '89}}, isbn = {{089791323X}}, title = {{{An optimal parallel dictionary}}}, doi = {{10.1145/72935.72974}}, year = {{1989}}, } @inbook{16745, author = {{Meyer auf der Heide, Friedhelm}}, booktitle = {{STACS 89}}, isbn = {{3540508406}}, title = {{{On genuinely time bounded computations}}}, doi = {{10.1007/bfb0028969}}, year = {{1989}}, } @inbook{16746, author = {{Meyer auf der Heide, Friedhelm and Wanka, Rolf}}, booktitle = {{STACS 89}}, isbn = {{3540508406}}, title = {{{Time-optimal simulations of networks by universal parallel computers}}}, doi = {{10.1007/bfb0028978}}, year = {{1989}}, } @inbook{16789, author = {{Meyer auf der Heide, Friedhelm}}, booktitle = {{STACS 89}}, isbn = {{9783540508403}}, issn = {{0302-9743}}, title = {{{Computing minimum spanning forests on 1- and 2-dimensional processor arrays}}}, doi = {{10.1007/bfb0028983}}, year = {{1989}}, } @article{17162, author = {{Fuchssteiner, Benno and Oevel, Gudrun}}, journal = {{Rev. Math. Phys.}}, number = {{1}}, pages = {{415--479}}, title = {{{Geometry and Action-Angle Variables of Multi Soliton Systems}}}, year = {{1989}}, } @article{11793, abstract = {{The problem of optimal carrier recovery and detection of digitally phase modulated signals on fading channels by using a nonstructured approach is presented, i.e. no constraint is placed on the receiver structure. First, the optimal receiver is derived for digitally phase-modulated signals when transmitted over a frequency-nonselective fading channel with memory. The memory results from the fact that usually the coherence time of the channel is larger than the symbol period. Symbols adjacent in time cannot be detected independently and therefore the well-known quadratic receiver is not optimal in this case. A maximum a posteriori (MAP) detector is derived and explicitly utilizes the channel memory for carrier recovery. The derivation shows that the optimal carrier recovery is, under certain conditions, a Kalman filter. Some attractive properties of this carrier recovery unit (including the absence of hang up) are discussed. Then the error rate of several digital modulation schemes is calculated taking the performance of the filter into account. The differences in susceptibility of the modulation schemes to carrier phase jitter are specified.}}, author = {{Haeb-Umbach, Reinhold and Meyr, Heinrich}}, journal = {{IEEE Transactions on Communications}}, title = {{{A systematic approach to carrier recovery and detection of digitally phase modulated signals on fading channels}}}, year = {{1989}}, } @inproceedings{17821, author = {{Peckhaus, Volker}}, booktitle = {{XVIIIth International Congress of History of Science. General Theme: Science and Political Order. Wissenschaft und Staat. 1st — 9th August 1989 Hamburg — München. Abstracts}}, editor = {{Krafft, Fritz and Scriba, Christoph J.}}, title = {{{Die Institutionalisierung der Mathematischen Logik in Deutschland}}}, volume = {{E1.4}}, year = {{1989}}, } @inproceedings{13020, author = {{Wunderlich, Hans-Joachim and Hellebrand, Sybille}}, booktitle = {{IEEE International Test Conference (ITC'89)}}, pages = {{19--27}}, publisher = {{IEEE}}, title = {{{The Pseudo-Exhaustive Test of Sequential Circuits}}}, doi = {{10.1109/test.1989.82273}}, year = {{1989}}, } @book{18464, editor = {{Tophinke, Doris}}, publisher = {{Manuskriptdruck}}, title = {{{Plattdeutsch - ein Pflegefall?}}}, year = {{1989}}, } @article{38494, author = {{Noé, Reinhold and RODLER, H and EBBERG, A and GAUKEL, G and AURACHER, F}}, issn = {{0146-8030}}, journal = {{FIBER AND INTEGRATED OPTICS}}, number = {{4}}, pages = {{303--306}}, title = {{{PATTERN-INDEPENDENT FSK HETERODYNE TRANSMISSION WITH ENDLESS POLARIZATION CONTROL AND A 119 PHOTOELECTRONS BIT RECEIVER SENSITIVITY}}}, doi = {{10.1080/01468038908202887}}, volume = {{8}}, year = {{1989}}, } @article{38347, author = {{Noé, Reinhold and GIMLETT, JL and VODHANEL, RS and TSUJI, S}}, issn = {{0013-5194}}, journal = {{ELECTRONICS LETTERS}}, number = {{1}}, pages = {{4--5}}, title = {{{POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING}}}, doi = {{10.1049/el:19890003}}, volume = {{25}}, year = {{1989}}, } @article{38297, author = {{Noé, Reinhold and GIMLETT, JL and VODHANEL, RS and TSUJI, S}}, issn = {{0013-5194}}, journal = {{ELECTRONICS LETTERS}}, number = {{1}}, pages = {{4--5}}, title = {{{POLARIZATION-INSENSITIVE, 500 MBIT/S FSK TRANSMISSION OVER 153KM BY PASSIVE POLARIZATION SWITCHING}}}, doi = {{10.1049/el:19890003}}, volume = {{25}}, year = {{1989}}, } @inproceedings{39585, author = {{Rammig, Franz Josef and Müller, Wolfgang}}, booktitle = {{Proc. of the Ninth IFIP Symposium on CHDLs and their Application}}, title = {{{ODICE: Object-Oriented Hardware Description in CAD Environment}}}, year = {{1989}}, } @article{40069, author = {{Heppke, G. and Jéròme, B. and Kitzerow, Heinz-Siegfried and Pieranski, P.}}, issn = {{0267-8292}}, journal = {{Liquid Crystals}}, keywords = {{Condensed Matter Physics, General Materials Science, General Chemistry}}, number = {{3}}, pages = {{813--828}}, publisher = {{Informa UK Limited}}, title = {{{Observation of a hexagonal blue phase in systems with negative dielectric anisotropy}}}, doi = {{10.1080/02678298908026387}}, volume = {{5}}, year = {{1989}}, }