Results 281 to 290 of about 1,528,850 (317)
Some of the next articles are maybe not open access.
Time integrating acoustooptic correlator
Applied Optics, 1976This paper describes an acoustooptic technique for achieving signal correlation with a time-bandwidth product of 10(6)-10(8), using existing devices. One signal is used to intensity modulate a light beam that illuminates an acoustic cell. The other signal appears in the cell as a traveling wave and is Schlieren imaged onto a detector array.
R A, Sprague, C L, Koliopoulos
openaire +2 more sources
The integrator as a time delay estimator
ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005The integrator technique of time delay measurement has already been found to be very useful, in view of its simplicity, attractive analytical properties and the picosecond sensitivities that are attainable. This paper evaluates the integrator technique within the general context of time delay estimation.
Ramutis A. Zakarevicius +2 more
openaire +1 more source
Ecotoxicology and macroecology – Time for integration
Environmental Pollution, 2012Despite considerable progress in ecotoxicology, it has become clear that this discipline cannot answer its central questions, such as, "What are the effects of toxicants on biodiversity?" and "How the ecosystem functions and services are affected by the toxicants?". We argue that if such questions are to be answered, a paradigm shift is needed.
Mikhail A, Beketov, Matthias, Liess
openaire +2 more sources
Integrating Time and Resources into Planning
2010 22nd IEEE International Conference on Tools with Artificial Intelligence, 2010AI Planning typically deals with the causal relations between the actions while the role of explicit time and limited resources is suppressed. The recent trends show that integrating time and resource reasoning into planning significantly improves direct applicability of planning technology in real-life problems.
Filip Dvorák, Roman Barták
openaire +1 more source
Real-time integrity constraints
Proceedings of the eleventh ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems - PODS '92, 1992We propose that Past Metric Temporal Logic (Temporal Logic with real-time operators referring to the past) be used as a language for specifying real-time integrity constraints. Building on our earlier work, we develop efficient, history-less methods of evaluating such constraints.
openaire +1 more source
2009
TheWeb Ontology Language (OWL) is the most expressive standard language for modeling ontologies on the SemanticWeb. In this chapter, we present the temporal OWL (tOWL) language: a temporal extension of the OWL DL language. tOWL is based on three layers added on top of OWL DL.
Frasincar, F., Milea, D.V., Kaymak, U.
openaire +3 more sources
TheWeb Ontology Language (OWL) is the most expressive standard language for modeling ontologies on the SemanticWeb. In this chapter, we present the temporal OWL (tOWL) language: a temporal extension of the OWL DL language. tOWL is based on three layers added on top of OWL DL.
Frasincar, F., Milea, D.V., Kaymak, U.
openaire +3 more sources
Time to codify scientific integrity
Science, 2017As Ranking Member of the House Energy and Commerce Subcommittee on Environment and former President and CEO of the New York State Energy Research and Development Authority, I am writing to express my alarm at the recent firing of science advisory board members at the U.S.
openaire +2 more sources
ALL-TIMES – A European Project on Integrating Timing Technology
2008ALL-TIMES is a research project within the EC 7th Framework Programme. The project concerns embedded systems that are subject to safety, availability, reliability, and performance requirements. Increasingly, these requirements relate to correct timing. Consequently, the need for appropriate timing analysis methods and tools is growing rapidly.
Gustafsson J. +6 more
openaire +1 more source

