Results 21 to 30 of about 5,392,800 (262)

A Dynamic Model of Predation

open access: yesThe RAND Journal of Economics, 2022
We study the feasibility and profitability of predation in a dynamic environment, using a parsimonious infinite-horizon, complete information setting in which an incumbent repeatedly faces potential entry. When a rival enters, the incumbent chooses whether to accommodate or predate it; the entrant then decides whether to stay or exit.
Rey, Patrick   +2 more
openaire   +7 more sources

Modeling dynamic reliability using dynamic Bayesian networks [PDF]

open access: yes, 2006
This paper considers the problem of modeling and analyzing the reliability of a system or a component (system) where the state of the system and the state of process variables influences each other in addition to an exogenous perturbation influence: this
Noyes, Daniel, Tchangani, Ayeley
core   +1 more source

Validation of Underwater Sensor Package Using Feature Based SLAM

open access: yesSensors, 2016
Robotic vehicles working in new, unexplored environments must be able to locate themselves in the environment while constructing a picture of the objects in the environment that could act as obstacles that would prevent the vehicles from completing their
Christopher Cain, Alexander Leonessa
doaj   +1 more source

Model for macroevolutionary dynamics [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Significance Genera are often viewed as artificial constructs of taxonomic practice. Here, we show that a stochastic model that includes three events with constant rates—species formation, extinction of species, and origination of new genera—can describe well the species-within-genus distributions for large taxa.
Maruvka, Yosef E   +3 more
openaire   +4 more sources

Dynamic Modeling and Simulation of a Rotating Single Link Flexible Robotic Manipulator Subject to Quick Stops [PDF]

open access: yes, 2014
Single link robotic manipulators are extensively used in industry and research operations. The main design requirement of such manipulators is to minimize link dynamic deflection and its active end vibrations, and obtain high position accuracy during its
Noroozi, Siamak, Dupac, Mihai
core   +1 more source

Bioinspired Tracking Control of High Speed Nonholonomic Ground Vehicles

open access: yesJournal of Robotics, 2015
The behavior of nature’s predators is considered for designing a high speed tracking controller for nonholonomic vehicles, whose dynamics are represented using a unicycle model.
Adam Shoemaker, Alexander Leonessa
doaj   +1 more source

Dynamic delta modeling [PDF]

open access: yesProceedings of the 16th International Software Product Line Conference - Volume 2, 2012
Abstract Delta Modeling (ADM) offers an algebraic description of how a (software) product line may be built so that every product can be automatically derived by structured reuse of code. In traditional application engineering a single valid feature configuration is chosen, which does not change during the lifetime of the product.
openaire   +3 more sources

Multiscale modeling of traditional and dynamic heterogeneous catalytic processes

open access: yes, 2022
Vlachos, Dionisios G.Heterogeneous catalysis is a key element in a global energy strategy that enables a lower energy route for the many chemical reactions essential to food production, fuels, pharmaceuticals, and other essential materials in our ...
Wittreich, Gerhard Robert
core   +1 more source

Potential of Clay-Based Geomaterials for Passive Treatment of Brackish and Saline Waters [PDF]

open access: yesBIO Web of Conferences
The increasing salinity and water scarcity of water resources are major problems in semi-arid or arid regions. This study examines the possibilities of a hybrid geomaterial based on clay to treat passively water bodies that are brackish or saline made ...
Karbal Abdelbast   +6 more
doaj   +1 more source

Flexible Bayesian Dynamic Modeling of Correlation and Covariance Matrices [PDF]

open access: yes, 2020
Modeling correlation (and covariance) matrices can be challenging due to the positive-definiteness constraint and potential high-dimensionality. Our approach is to decompose the covariance matrix into the correlation and variance matrices and propose a ...
Shahbaba, Babak   +7 more
core   +1 more source

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