Results 11 to 20 of about 521,626 (269)
Remote Sensing, 2015 Leaf biomass distribution is a key factor for modeling energy and carbon fluxes in forest canopies and for assessing fire behavior. We propose a new method to estimate 3D leaf bulk density distribution, based on a calibration of indices derived from T ...
François Pimont +4 more
doaj +1 more source
Symmetries of differential equations in computer vision applications [PDF]
Компьютерные исследования и моделирование, 2010 In our work we present generalization of well-known approach for construction of invariant feature vectors of images in computer vision applications. Basic feature of the suggested algorithm is replacement of commonly used Gaussian filter by convolution ...
Denis Aleksandrovich Vrazhnov +2 more
doaj +1 more source
Wave disturbance filtering in dynamic positioning systems [PDF]
Modeling, Identification and Control, 1996 Three different approaches to wave disturbance filtering in dynamic positioning systems are studied in this paper. It is shown that a conventional design based on notch filters leads to approximately the same achievable performance of the total control ...
Tor S. Schei
doaj +1 more source
Journal of Advances in Modeling Earth Systems, 2021 Identifying internal waves in complex flow fields is a long‐standing problem in fluid dynamics, oceanography and atmospheric science, owing to the overlap of internal waves temporal and spatial scales with other flow regimes. Lagrangian filtering—that is,
Callum J. Shakespeare +5 more
doaj +1 more source
Error Reduction in Vision-Based Multirotor Landing System
Sensors, 2022 New applications are continuously appearing with drones as protagonists, but all of them share an essential critical maneuver—landing. New application requirements have led the study of novel landing strategies, in which vision systems have played and ...
Juan Pedro Llerena Caña +2 more
doaj +1 more source
Compressed air mechanical drying for railway branch of Europe [PDF]
Transport Problems, 2010 The up-to-date compressed air drying methods for necessities of different industrial branches are covered. In particular, the approved, reliable method of compressed air drying is suggested.
Leonid RIPOL’-SARAGOSI
doaj
A resistivity survey of phosphate deposits containing hardpan pockets in Oulad Abdoun, Morocco [PDF]
Geofísica Internacional, 2006 In the great Oulad Abdoun Basin exploitation of a new phosphate deposit was begun after the Grand Daoui horizon was exhausted. Inclusions of sterile hardpan—so-called “disturbances” —are hard to detect and interfere with phosphate extraction.
Saad Bakkali
doaj
Local refinement mechanism for improved plant leaf segmentation in cluttered backgrounds
Frontiers in Plant Science, 2023 Plant phenotyping is a critical field in agriculture, aiming to understand crop growth under specific conditions. Recent research uses images to describe plant characteristics by detecting visual information within organs such as leaves, flowers, stems ...
Ruihan Ma +10 more
doaj +1 more source
The Nature and Problems of Cyberspace Filtering according to Islamic Jurisprudence [PDF]
Religion & Communication, 2016 One of the inhibiting policies of the government at national levels for creating a healthy cyberspace environment is its filtering. Iran is no exception in this regard and we witness occasional news about censorship ensued by for and against reactions in
Mohsen Esmaeili +1 more
doaj +1 more source
Applied Sciences, 2023 This article discusses the possibility of generalizing the existing methods of optimization of observations to the problems of resource management of intrusion detection systems.
Nikolay V. Boldyrikhin +5 more
doaj +1 more source