Results 11 to 20 of about 76,862 (262)
A Gis Study about Forest Management in Strâmbu Băiuț
Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2022 Forests have a major role in preserving an environment, suitable for human life, being a very important and renewable natural resource. Because of the multiple interests of forest users, a wider range of up-to-date information is being requested in the ...
Mircea Emil NAP +8 more
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Determination of an appropriate projection system for forest areas in Turkey
Geodesy and Cartography, 2020 Geometrical surfaces such as sphere and ellipsoid are considered as reference surfaces since there is no geometric shape that perfectly represents the earth when translating the earth into a map plane.
Faruk Yildirim +2 more
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Arnold Tongues in Area-Preserving Maps
Archive for Rational Mechanics and Analysis, 2023 In the early 60's J. B. Keller and D. Levy discovered a fundamental property: the instability tongues in Mathieu-type equations lose sharpness with the addition of higher-frequency harmonics in the Mathieu potentials. 20 years later V. Arnold rediscovered a similar phenomenon on sharpness of Arnold tongues in circle maps (and rediscovered the result of
Mark Levi, Jing Zhou
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Topology-preserving smoothing of retinotopic maps.
PLoS Computational Biology, 2021 Retinotopic mapping, i.e., the mapping between visual inputs on the retina and neuronal activations in cortical visual areas, is one of the central topics in visual neuroscience.
Yanshuai Tu +3 more
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Journal of High Energy Physics, 2021 The double copy relates scattering amplitudes and classical solutions in Yang-Mills theory, gravity, and related field theories. Previous work has shown that this has an explicit realisation in self-dual YM theory, where the equation of motion can be ...
Erick Chacón +4 more
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UAS DATA ACQUISITION PROTOCOL FOR MARINE HABITAT MAPPING: AN ACCURACY ASSESSMENT STUDY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Marine habitat mapping is essential for updating existing information, preserving, and protecting the marine environment. Unmanned Aerial Systems (UAS) are an important tool for monitoring and mapping coastal and marine environment because of their ...
M. Doukari, K. Topouzelis
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Two Area Preserving Maps from the Square to the p-Ball
Mathematical Modelling and Analysis, 2017 We construct two area preserving maps from the square to the p-ball (the domain defined by |x|p + |y|p ≤ |a|p ) and use them to obtain low distorted uniform grids on the p-ball.
Adrian Holhos
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Extreme Multistability in Simple Area-Preserving Map [PDF]
IEEE Access, 2020 Initial condition-relied extreme multistability has been recently found in many continuous dynamical systems. However, such a specific phenomenon has not yet been discovered in a discrete iterative map. To investigate this phenomenon, this paper proposes a two-dimensional conservative map only with one sine nonlinearity.
Houzhen Li +4 more
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A Topological Approach to Bend-Twist Maps with Applications
International Journal of Differential Equations, 2011 In this paper we reconsider, in a purely topological framework, the concept of bend-twist map previously studied in the analytic setting by Tongren Ding in (2007).
Anna Pascoletti, Fabio Zanolin
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Transformation media with variable optical axes
New Journal of Physics, 2012 We introduce a general framework in performing transformation optics by purely rotating the optical axis of the same anisotropic dielectric material on the subwavelength scale.
Zixian Liang +4 more
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