Results 11 to 20 of about 782 (162)

Evolutionary dynamics on a regular networked structured and unstructured multi‐population

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract In this paper, we study collective decision‐making in a multi‐population framework, where groups of individuals represent whole populations that interact by means of a regular network. Each group consists of a number of players and every player can choose between two options.
Wouter Baar   +2 more
wiley   +1 more source

Multiscale Methods for Boundary Integral Equations and Their Application to Boundary Value Problems in Scattering Theory and Geodesy [PDF]

open access: yes, 1996
In the present paper we give an overview on multiscale algorithms for the solution of boundary integral equations which are based on the use of wavelets. These methods have been introduced first by Beylkin, Coifman, and Rokhlin [5].
Bernd H. Kleemann   +5 more
core   +2 more sources

APPLICATIONS OF VORONOI AND DELAUNAY DIAGRAMS IN THE SOLUTION OF THE GEODETIC BOUNDARY VALUE PROBLEM [PDF]

open access: yes, 2012
Voronoi and Delaunay structures are presented as discretization tools to be used innumerical surface integration aiming the computation of geodetic problemssolutions, when under the integral there is a non-analytical function (e.
ESCOBAR, I. P.   +2 more
core   +2 more sources

Determination of the geopotential value on the permanent GNSS stations in Vietnam based on the Geodetic Boundary Value Problem approach

open access: yes, 2021
International audienceIn the realisation of the International Height Reference System, the determination of the geopotential value and its variations in time plays an important role.
Bui, Luyen K.   +4 more
core   +1 more source

A wavelet algorithm for the boundary element solution of a geodetic boundary value problem [PDF]

open access: yes, 1996
In this paper we consider a piecewise bilinear collocation method for the solution of a singular integral equation over a part ot the surface of the earth.
Rathsfeld, A.   +1 more
core   +2 more sources

Retinal Vessel Segmentation: A Comprehensive Review From Classical Methods to Deep Learning Advances (1982–2025)

open access: yesAdvanced Intelligent Systems, EarlyView.
Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal   +6 more
wiley   +1 more source

Spherical Harmonics and Gravity Intensity Modeling Related to a Special Class of Triaxial Ellipsoids

open access: yesMathematics
The G-modified Helmholtz equation is a partial differential equation that allows gravity intensity g to be expressed as a series of spherical harmonics, with the radial distance r raised to irrational powers.
Gerassimos Manoussakis   +1 more
doaj   +1 more source

A Study on Geodetic Boundary Value Problems in Ellipsoidal Geometry [PDF]

open access: yes, 2014
137 σ.Στην παρούσα διατριβή, ειδικά γεωδαιτικά προβλήματα αντιμετωπίζονται ως προβλήματα συνοριακών τιμών. Το γεωδαισιακό πρόβλημα, το πεδίο βαρύτητας που παράγεται από ένα ομογενές ελλειψοειδές και το γραμμικό δεσμευμένο αλτιμετρικό-βαρυτημετρικό ...
Πάνου, Γεώργιος Χ.   +1 more
core   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

open access: yesAdvanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim   +4 more
wiley   +1 more source

Airy criterion and the ideal mapping of an ellipsoid of revolution onto a sphere

open access: yesJournal of Spatial Information Science
This paper addresses the problem of constructing an ideal projection of an ellipsoid of revolution onto a sphere based on the Airy criterion. General equations required to solve the problem are derived. In particular, the Euler–Urmaev system is obtained,
Elena Novikova
doaj   +1 more source

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