Results 301 to 310 of about 25,432,868 (344)
Some of the next articles are maybe not open access.

Observing the Global Ocean with Biogeochemical-Argo.

Annual Review of Marine Science, 2020
Biogeochemical-Argo (BGC-Argo) is a network of profiling floats carrying sensors that enable observation of as many as six essential biogeochemical and bio-optical variables: oxygen, nitrate, pH, chlorophyll a, suspended particles, and downwelling ...
H. Claustre, K. Johnson, Y. Takeshita
semanticscholar   +1 more source

A dynamic earth observation system

Parallel Computing, 2003
The paper presents an overview of SARA/Digital Puglia (Synthetic Aperture Radar Atlas), a remote sensing environment that shows how grid technologies and high performance computing can be efficiently used to build dynamic earth observation systems for the management of huge quantities of data coming from space missions and for their on-demand ...
ALOISIO, Giovanni, CAFARO, Massimo
openaire   +2 more sources

OBSERVERS FOR DISTRIBUTED-PARAMETER SYSTEMS

IFAC Proceedings Volumes, 1989
This paper introduces a series of problems on state estimation for parabolic systems on the basis of measurements generated by sensors in the presence of unknown but bounded disturbances. Observability issues and relations to stochastic filtering schemes for distributed processes are also discussed.
Kurzhanski, A.B., Khapalov, A.Y.
openaire   +3 more sources

Ocean observing systems a national perspective from Australia

open access: yes, 2011
Presents a collection of slides covering the following topics: ocean observing systems; Integrated Marine Observing System; science planning; IMOS data and products; electronic Marine Information Infrastructure (eMII) facility; Australian Ocean Data ...
Tim Moltmann
exaly   +1 more source

Observation and biological systems

Bulletin of Mathematical Biology, 1977
A number of apparently different lines of inquiry into fundamental biological processes point to the central role played by the notion of observation in the theory of biological systems. Not only do we use the results of our own observations to obtain the system descriptions which are the starting-points for an understanding of biological processes ...
openaire   +2 more sources

Design of Observers for Hybrid Systems

2002
A methodology for the design of dynamical observers for hybrid plants is proposed. The hybrid observer consists of two parts: a location observer and a continuous observer. The former identifies the current location of the hybrid plant, while the latter produces an estimate of the evolution of the continuous state of the hybrid plant.
A. Balluchi   +3 more
openaire   +3 more sources

A Global Paleoclimate Observing System

Science, 2001
A major obstacle to producing reliable predictions of climate change and its impacts is a lack of data on time scales longer than the short instrumental record. Recently initiated climate observation programs will need to be continuously operated for at least 50 years before they begin to provide information that is relevant to this problem.
Alverson, K   +8 more
openaire   +2 more sources

Local observer for infinitesimally observable nonlinear systems

International Journal of Control, 2013
In this article, we present a local observer based on infinitesimal observability along trajectories. The gain of this observer derives from a dynamical Lyapunov equation. The inputs for which the observer converges are those which render the system observable at each point of the Ω-limit of the unknown trajectory (infinitesimal observability at ...
Hassan Hammouri   +2 more
openaire   +2 more sources

On uniform observation of nonuniformly observable systems

Systems & Control Letters, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Besançon, Gildas, Hammouri, Hassan
openaire   +1 more source

CoEvolution of Effective Observers and Observed Multi-agents System

2005
This paper elaborates upon an idea and a development introduced and presented by Bersini in [1]. Roughly, by observing the search space of a combinatorial problem in a “clever” way, it can be drastically reduced. In order to discover this “clever way”, a second search process has to be engaged in the space of the observables. So two Genetic Algorithms (
Philemotte, Christophe, Bersini, Hugues
openaire   +2 more sources

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