Results 81 to 90 of about 73,738 (309)
Remote Sensing, 2020 Automatic extraction of region objects from high-resolution satellite imagery presents a great challenge, because there may be very large variations of the objects in terms of their size, texture, shape, and contextual complexity in the image.
Kun Li +4 more
doaj +1 more source
Polishing trajectory planning method for optimal removal of full surface
Advances in Mechanical Engineering, 2022 Optical free-form surface elements have better optical characteristics than traditional optical elements, but their more complex curved structure also increases the difficulty of optical processing.
Yuanxun Cao +4 more
doaj +1 more source
Stability of isometric maps in the Heisenberg group
, 2008 In this paper we prove some approximation results for biLipschitz maps in the Heisenberg group. Namely, we show that a biLipschitz map with biLipschitz constant close to one can be pointwise approximated, quantitatively on any fixed ball, by an isometry.
Arcozzi, Nicola, Morbidelli, Daniele
core +1 more source
Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons
Communications on Pure and Applied Mathematics, EarlyView.Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley +1 more source
The Analysis of the Structure of Scientific Collaboration Networks in Basic Medical Sciences in the Science Citation Index from 1996 to 2013 [PDF]
بازیابی دانش و نظامهای معنایی, 2016 The present study aimed to determine the levels of Iranian collaboration and to analyze scientific collaboration network in the area of basic medical sciences, in the Science Citation Index from 1996 to 2013.
Asghar Sattarzadeh +2 more
doaj +1 more source
Cross sections for geodesic flows and \alpha-continued fractions
, 2012 We adjust Arnoux's coding, in terms of regular continued fractions, of the geodesic flow on the modular surface to give a cross section on which the return map is a double cover of the natural extension for the \alpha-continued fractions, for each ...
Abramov L M +21 more
core +3 more sources
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT The European Union (EU) has consistently advanced sustainability goals, with the 2019 European Green Deal (EGD) serving as a cornerstone initiative aligned with global sustainability frameworks. Yet, the combined impact of the Covid‐19 pandemic, energy market volatility, and supply chain disruptions has amplified the urgency of evaluating ...
Edoardo Crocco +3 more
wiley +1 more source
Underwater Image Restoration Using Geodesic Color Distance and Complete Image Formation Model
IEEE Access, 2020 Underwater images suffer from different types of quality degradation, including haze, blur, low contrast, and color distortion, owing to light scattering and absorption.
Eunpil Park, Jae-Young Sim
doaj +1 more source
Epilepsia, EarlyView.Abstract Objective Interictal epileptiform discharges (IEDs) observed on scalp electroencephalography (EEG) serve as a diagnostic hallmark of epilepsy. However, only a small fraction of IEDs recorded by intracranial EEG (iEEG) are detectable on the scalp; the vast majority remain invisible on scalp recordings.
Nicolas Roehri +7 more
wiley +1 more source
On the completeness of contraction map proof method for holographic entropy inequalities
Journal of High Energy PhysicsThe contraction map proof method is the commonly used method to prove holographic entropy inequalities. Existence of a contraction map corresponding to a holographic entropy inequality is a sufficient condition for its validity. But is it also necessary?
Ning Bao +2 more
doaj +1 more source