Results 21 to 30 of about 19,668 (215)

DYNAMIC HANDWRITTEN SIGNATURE IDENTIFICATION USING SPIKING NEURAL NETWORK

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2021
The article proposes a method for dynamic signature identification based on a spiking neural network. Three dynamic signature parameters l(t), xy(t), p(t) are used, which are invariant to the signature slope angle, and after their normalization, also to ...
Vladislav Kutsman, Oleh Kolesnytskyj
doaj   +1 more source

ACCURACY ANALYSIS OF REAL-TIME OBJECT POSITIONING WITHOUT GCP FOR IMAGES FROM UAV OBLIQUE ULTRA-LONG FOCAL SMALL VIEW FIELD WHISKBROOM CAMERA SYSTEM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Using images from UAV oblique ultra-long focal small view field whiskbroom camera (ULF-SVF-WC) system for object positioning and mapping is more difficult than conventional aerial photogrammetry, for the particularity of oblique ULF-SVF-WC imaging mode ...
Q. Ye, X. Zhang, X. Zhang, Y. Lin, J. Jian, J. Jian   +5 more
doaj   +1 more source

ULF wave activity during the 2003 Halloween superstorm: multipoint observations from CHAMP, Cluster and Geotail missions [PDF]

Annales Geophysicae, 2012
We examine data from a topside ionosphere and two magnetospheric missions (CHAMP, Cluster and Geotail) for signatures of ultra low frequency (ULF) waves during the exceptional 2003 Halloween geospace magnetic storm, when Dst reached ~−380 nT. We
G. Balasis, I. A. Daglis, E. Zesta, C. Papadimitriou, C. Papadimitriou, M. Georgiou, M. Georgiou, R. Haagmans, K. Tsinganos   +8 more
doaj   +1 more source

Machine Learning Analysis of Arterial Oscillograms for Depression Level Diagnosis in Cardiovascular Health

Complex Systems Informatics and Modeling Quarterly
The presented study explores the clustering of arterial oscillogram (AO) data among a sample of patients, focusing on ultra-low-frequency (ULF) indicators and their relationship with depression levels.
Vladislav Kaverinsky, Dmytro Vakulenko, Liudmyla Vakulenko, Kyrylo Malakhov   +3 more
doaj   +1 more source

A Conversation with Ulf Grenander

Statistical Science, 2006
Published at http://dx.doi.org/10.1214/088342305000000313 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
openaire   +3 more sources

Investigation of  ∼ 20–40 mHz ULF waves and their driving mechanisms in Mercury's dayside magnetosphere [PDF]

Annales Geophysicae, 2017
Ultra-low-frequency (ULF) waves in the  ∼  20–40 mHz range are frequently observed in the Mercury magnetosphere using Mercury Surface Space Environment Geochemistry, and Ranging (MESSENGER) magnetic field data.
E. Liljeblad, T. Karlsson
doaj   +1 more source

Investigating ultra-low frequency emissions and total electron content anomalies as earthquake precursors in Sumatra (2019–2020)

Kuwait Journal of Science
Ultra-low frequency (ULF) emissions and total electron content (TEC) anomalies are potential earthquake precursors for short-term earthquake prediction.
Muhammad Hamidi, Suaidi Ahadi, Vira Friska, Marzuki Marzuki   +3 more
doaj   +1 more source

Oppositely Charged Single Enzyme Nanogels Form Versatile Coacervates for Efficient Enzyme Cascade Catalysis

Advanced Materials, EarlyView.
Oppositely charged single enzyme nanogels (SENs) phase‐separate into bi‐enzymatic coacervate microdroplets, acting as both scaffold and functional units. By tuning SEN ratios, these coacervates create specific microenvironments that enable selective small‐molecule enrichment and efficient intermediate diffusion.
Andoni Rodriguez‐Abetxuko, Nadia A. Erkamp, Neshat Moslehi, Yannick H. A. Leurs, Lars Paffen, Işil Yeşil Gür, Jana Stojanović, Hugo Brasselet, Laura van der Weel, Ulf Hanefeld, Ilja K. Voets, Jan C. M. van Hest   +11 more
wiley   +1 more source

Tooth row allometry in domestic rabbits and nondomestic lagomorphs: Evidence for a decoupling of body and tooth row size changes in evolutionary time

The Anatomical Record, EarlyView.
Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati, Christine Böhmer, Stefanie Ohlerth, Marcus Clauss   +3 more
wiley   +1 more source

Overtaking interactions of nonlinear ultra-low frequency multi-shock structures in non-relativistic and ultra-relativistic degenerate plasmas

Journal of Taibah University for Science, 2022
A Burgers’ equation (BE) is obtained to examine the overtaking interactions of nonlinear ultra-low frequency (ULF) shock waves, in two cases, in non-relativistic and ultra-relativistic degenerate plasmas consisting of inertial mobile heavy-ion fluid and ...
E. F. El-Shamy, E. A. Elghmaz, H. Elhosiny Ali, M. Mahmoud, L. Alelyani, M. O. Abdellahi   +5 more
doaj   +1 more source