@inproceedings{13020,
author = {Wunderlich, Hans-Joachim and Hellebrand, Sybille},
booktitle = {{IEEE International Test Conference (ITC'89)}},
pages = {19--27},
publisher = {{IEEE (Comput. Soc. Press)}},
title = {{The Pseudo-Exhaustive Test of Sequential Circuits}},
doi = {10.1109/test.1989.82273},
year = {1989},
}
@techreport{8187,
author = {Engels, Gregor},
publisher = {TU Braunschweig},
title = {{Benutzerschnittstelle und Architektur der integrierten Datenbankentwurfsumgebung CADDY (Kurzfassung)}},
year = {1989},
}
@book{3532,
author = {Gries, Thomas},
title = {{Chaos in the Market of Foreign Exchange, in: Rieder, Gessner, Peyer, Immhoff, Radermacher (eds)}},
year = {1989},
}
@book{7511,
author = {Engels, Gregor and Schäfer, Wilhelm},
publisher = {Teubner},
title = {{Programmentwicklungsumgebungen: Konzepte und Realisierung}},
year = {1989},
}
@inproceedings{7821,
author = {Ebert, Jürgen and Engels, Gregor},
booktitle = {Software-Entwicklung: Konzepte, Erfahrungen, Perspektiven, Fachtagung, 1989, Marburg (Germany)},
pages = {238--250},
publisher = {Springer},
title = {{Konzepte einer Software-Architektur-Beschreibungssprache}},
volume = {212},
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{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},
}
@phdthesis{2621,
author = {Betz, Stefan},
title = {{Investitionstheoretische Bestimmung der Abschreibungen für eine entscheidungsorientierte Kostenrechnung}},
year = {1990},
}
@inproceedings{13018,
author = {Hellebrand, Sybille and Wunderlich, Hans-Joachim},
booktitle = {{European Design Automation Conference (EDAC'90)}},
pages = {13--17},
publisher = {{IEEE (Comput. Soc. Press)}},
title = {{Tools and Devices Supporting the Pseudo-Exhaustive Test}},
doi = {10.1109/edac.1990.136612},
year = {1990},
}
@inbook{3050,
author = {Alt, Helmut and Blömer, Johannes and Wagener, Hubert},
booktitle = {Automata, Languages and Programming},
isbn = {3540528261},
pages = {703--716},
publisher = {Springer-Verlag},
title = {{Approximation of convex polygons}},
doi = {10.1007/bfb0032068},
year = {1990},
}
@inproceedings{7824,
author = {Hohenstein, Uwe and Engels, Gregor},
booktitle = {Proceedings of the 9th International Conference on Entity-Relationship Approach (ER 90), Lausanne, Switzerland},
pages = {177--188},
publisher = {ER Institute},
title = {{Formal Semantics of an Entity-Relationship Query Language}},
year = {1990},
}
@inproceedings{8081,
author = {Krauter, Stefan and Hanitsch, Rolf},
booktitle = {Proceedings of the 1st World Renewable Energy Congress, Reading (UK), 23.–28. September 1990, Band 1, S. 141–144.},
location = {Reading (UK)},
title = {{The Influence of the Capsulation on the Efficiency of PV-Modules.}},
doi = {10.1016/B978-0-08-037539-7.50062-4},
year = {1990},
}
@article{3531,
author = {Gries, Thomas},
journal = {Jahrbuch für Sozialwissenschaften},
number = {1},
pages = {3--41},
title = {{Wechselkurstheorie und internationale monetäre Transmissionen }},
volume = {41},
year = {1990},
}
@inproceedings{13019,
author = {Hellebrand, Sybille and Wunderlich, Hans-Joachim and F. Haberl, Oliver},
booktitle = {{IEEE International Test Conference (ITC'90)}},
pages = {670--679},
publisher = {{IEEE (Comput. Soc. Press)}},
title = {{Generating Pseudo-Exhaustive Vectors for External Testing}},
doi = {10.1109/test.1990.114082},
year = {1990},
}
@misc{13103,
author = {Hellebrand, Sybille and Wunderlich, Hans-Joachim and F. Haberl, Oliver},
keyword = {WORKSHOP},
title = {{Generating Pseudo-Exhaustive Vectors for External Testing}},
year = {1990},
}
@inproceedings{11800,
abstract = {The resonant bias coil technique requires even-numbered transitions to be written on even-numbered clock cycles, and odd-numbered transitions on odd-numbered clock cycles. This constraint is met by double-spaced run-length-limited (d, k, 2) codes where the number of consecutive zeros is even. Exploiting the polarity of the transitions, a detection window that has double the size of the code bit period is possible. The authors describe a detection circuit that achieves the enlarged detection window, and present a phase detector which is particularly simple to implement. Channel bit-error-rate measurements have been carried out employing a rate 1/3 (2, 8, 2) code. Error rates of 10/sup -8/ were achieved for recording densities up to 33 kb/in. The results demonstrate the expected excellent immunity of the direct overwrite scheme to bloom.},
author = {Haeb-Umbach, Reinhold and Rugar, D. and Howell, T. and Coleman, G. P.},
booktitle = {International Conference on Communication, Atlanta},
title = {{Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment}},
year = {1990},
}
@inproceedings{8259,
abstract = {Semantic data models have been widely studied for the conceptual specification of databases. However, most of these data models are restricted to the description of the static structure of a database. They do not provide means to specify the dynamic behaviour of a database. This paper sketches a language for the specification of actions on databases which have been specified by an Extended Entity-Relationship (EER) schema. These actions are based on so-called elementary actions, which are automatically be derived from the EER schema. So, it can always be guaranteed that these schema dependent elementary actions preserve all inherent integrity constraints. The semantics of the elementary actions is given in two steps: First, it is shown how the semantics of a database schema, i.e., a current database state, can be represented by an attributed graph. Then, the semantics of elementary actions is given by programmed graph replacements.},
author = {Engels, Gregor},
booktitle = {Proceedings of the workshop on Graph Grammars and Their Application to Computer Science (1990), Bremen (Germany)},
pages = {344--362},
publisher = {Springer},
title = {{Elementary Actions on an Extended Entity-Relationship Database}},
doi = {http://dx.doi.org/10.1007/BFb0017372},
volume = {532},
year = {1990},
}
@inproceedings{15051,
author = {Mickus, KD and Domik, Gitta and Brugel, EW and Ayres, TR},
booktitle = {Bulletin of the American Astronomical Society},
pages = {828},
title = {{Star-a scientific toolkit for astrophysical research}},
volume = {22},
year = {1990},
}
@inproceedings{3048,
author = {Alt, Helmut and Behrends, Bernd and Blömer, Johannes},
booktitle = {Proceedings of the seventh annual symposium on Computational geometry - SCG '91},
isbn = {0897914260},
publisher = {ACM Press},
title = {{Approximate matching of polygonal shapes (extended abstract)}},
doi = {10.1145/109648.109669},
year = {1991},
}
@inproceedings{3049,
author = {Blömer, Johannes},
booktitle = {Proceedings 32nd Annual Symposium of Foundations of Computer Science},
isbn = {0818624450},
publisher = {IEEE Comput. Soc. Press},
title = {{Computing sums of radicals in polynomial time}},
doi = {10.1109/sfcs.1991.185434},
year = {1991},
}