Results 11 to 20 of about 4,780,938 (334)

Large scale rank of Teichmuller space [PDF]

open access: yes, 2014
Let X be quasi-isometric to either the mapping class group equipped with the word metric, or to Teichmuller space equipped with either the Teichmuller metric or the Weil-Petersson metric.
Eskin, Alex, Masur, Howard, Rafi, Kasra
core   +1 more source

Design of gradient coils based on the target field method in a high-permeability shield considering sidewall apertures

open access: yesResults in Physics, 2023
The combination of high-permeability ferrite and coils is often used to nullify ambient magnetic fields and is widely used in applications such as magnetic resonance imaging and high-sensitivity magnetic sensors.
Kun Wang   +6 more
doaj   +1 more source

Inverse scale space decomposition [PDF]

open access: yesInverse Problems, 2018
36 pages, 5 figures, submitted to Inverse ...
Schmidt, MF, Benning, M, Schönlieb, CB
openaire   +3 more sources

Non-Abelian gauge field theory in scale relativity [PDF]

open access: yes, 2006
Gauge field theory is developed in the framework of scale relativity. In this theory, space-time is described as a non-differentiable continuum, which implies it is fractal, i.e., explicitly dependent on internal scale variables.
Célérier M. N.   +10 more
core   +6 more sources

A robust nonlinear scale space change detection approach for SAR images [PDF]

open access: yes, 2013
In this paper, we propose a change detection approach based on nonlinear scale space analysis of change images for robust detection of various changes incurred by natural phenomena and/or human activities in Synthetic Aperture Radar (SAR) images using ...
Demirkesen, Can   +4 more
core   +1 more source

Enhanced Electromagnetic Wave Absorption Properties of Ultrathin MnO2 Nanosheet-Decorated Spherical Flower-Shaped Carbonyl Iron Powder

open access: yesMolecules, 2021
In this work, spherical flower-shaped composite carbonyl iron powder@MnO2 (CIP@MnO2) with CIP as the core and ultrathin MnO2 nanosheets as the shell was successfully prepared by a simple redox reaction to improve oxidation resistance and electromagnetic ...
Zhengwei Qu   +12 more
doaj   +1 more source

Time-causal and time-recursive spatio-temporal receptive fields [PDF]

open access: yes, 2015
We present an improved model and theory for time-causal and time-recursive spatio-temporal receptive fields, based on a combination of Gaussian receptive fields over the spatial domain and first-order integrators or equivalently truncated exponential ...
Lindeberg, Tony
core   +2 more sources

Volcanism and Deep Structures of the Moon

open access: yesSpace: Science & Technology, 2023
Volcanism is the most important endogenic geological process of the Moon, which is closely related to its internal structure and thermal history. Lunar volcanism is one of the most important topics for lunar science and explorations. Recent lunar orbital
Jiannan Zhao   +8 more
doaj   +1 more source

Global Distribution of Persistence of Total Electron Content Anomaly

open access: yesAtmosphere, 2019
To better understand the ionospheric morphology response to lithospheric activities, we study the global location preference of the positive and negative total electron content (TEC) anomalies persisting continuously for longer than 24 h at middle and ...
Yang-Yi Sun   +3 more
doaj   +1 more source

Scale space Radon transform

open access: yesIET Image Processing, 2021
An extension of Radon transform by using a measure function capturing the user need is proposed. The new transform, called scale space Radon transform, is devoted to the case where the embedded shape in the image is not filiform.
Djemel Ziou   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy