Results 81 to 90 of about 87,822 (293)

Deep learning for face detection using matlab [PDF]

, 2020
This project report presents face detection using Convolutional Neural Network algorithm and Deep Learning combination (DCT / DL) throughout MATLAB simulation and modeling.
Slim, Salim Adnan
core  

NUMERICAL SIMULATIONS OF LARGE SCALE EQUATORIAL SPREAD F

Acta Physica Sinica, 1996
We have performed numerical simulations of nonlinear evolution of plasma interchange instability in equatorial spread F(ESF) under different conditions. It is shown that the interchange instability resulting from one-or two-dimensional initial density perturbations can grow into plasma bubbles but cannot evolve into the plumelike structures on the west
null HUANG CHAO-SONG, null M.C.KELLEY
openaire   +1 more source

ZSL Orchestrates Synaptonemal Complex Assembly as a Central Region Scaffold to Ensure Synapsis Fidelity and Crossover Control in Polyploid Meiosis

Advanced Science, EarlyView.
A central molecular adaptor, ZSL, is identified that links transverse filaments ZYP1 to central element SCEP1/2 to drive synaptonemal complex assembly in Brassica napus. Loss of ZSL abolishes synaptonemal complex formation, disrupts meiotic chromosome segregation, and markedly increases crossovers, providing mechanistic insight into meiotic fidelity ...
Miaowei Geng, Shaochen Jia, Fei Cao, Cuiping Liu, Heshuang Zhang, Gang Xu, Jixin Zhuang, Yashi Zhang, Can Liu, Yuhang Zhao, Zilin Guo, Xinjie Yuan, Jiaqing Yang, Lei Chu, Bowei Cai, Hu Zhao, Chao Yang   +16 more
wiley   +1 more source

On the Structure and Redox Behavior of Ni and Cu Single Atoms Supported on Carbon Nitride

Angewandte Chemie, EarlyView.
Magnetic and electronic spectroscopies, combined with DFT, establish the MN4 binding site of Ni and Cu single atoms on carbon nitride and elucidate their redox photochemistry. Ni undergoes geometry‐preserving, reversible M2+/M+ cycling, whereas Cu collapses to an irreversible low‐coordinate Cu+ state, suppressing photocatalysis.
Giovanni Colonnello, Ksenija Maver, Arianna Actis, Gaia Grando, Giacomo Filippini, Tiziano Montini, Michele Melchionna, Paolo Fornasiero, Lucia Nasi, Iztok Arčon, Lorenzo Donà, Bartolomeo Civalleri, Enrico Salvadori, Mario Chiesa   +13 more
wiley   +2 more sources

Impact of meridional winds on the development of equatorial plasma bubbles: a review

Frontiers in Astronomy and Space Sciences
The impact of meridional winds on the onset and evolution of equatorial plasma bubbles (EPBs) is reviewed. The conventional wisdom had been that transequatorial meridional winds have a stabilizing effect on the development of EPBs during equatorial ...
J. D. Huba
doaj   +1 more source

2D Multi-Angle, Multi-Group Neutrino Radiation-Hydrodynamic Simulations of Postbounce Supernova Cores [PDF]

, 2008
We perform axisymmetric (2D) multi-angle, multi-group neutrino radiation-hydrodynamic calculations of the postbounce phase of core-collapse supernovae using a genuinely 2D discrete-ordinate (S_n) method.
Adam Burrows, Arnett W. D., Christian D. Ott, Eli Livne, Foglizzo T., Hammer E., Janka H.-T., Janka H.-T., Janka H.-T., Janka H.-T., Luc Dessart, Weinberg N. N., Yamada S.   +12 more
core   +3 more sources

Equatorial spread F and interplanetary magnetic field.

Journal of geomagnetism and geoelectricity, 1977
A reversal of the vertical F region drifts over the magnetic equator during the nighttime hours from the normal downward direction to upward direction is shown to cause the sudden generation of the Range type spread F configuration on the ionograms after a delay of about one hour.
openaire   +2 more sources

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Interaction of plasma drifts: A hypothesis for equatorial spread F occurrence

Journal of Space Weather and Space Climate
Studies on the generation mechanisms of post-sunset ionospheric irregularities, which constitute a threat to trans-ionospheric radio propagation, particularly at the African sector, are quite sparse.
Oyeyemi Elijah Oyedola, Olugbon Busola, Akala Andrew Oke-Ovie, Kashcheyev Anton, Rabiu Akeem Babatunde, Odeyemi Olumide Odeyinka   +5 more
doaj   +1 more source

Simulations of the Poynting--Robertson Cosmic Battery in Resistive Accretion Disks

, 2007
We describe the results of numerical "2.5--dimensional" MHD simulations of an initially unmagnetized disk model orbiting a central point--mass and responding to the continual generation of poloidal magnetic field due to a secular source that emulates the
Bisnovatyi-Kogan G. S., Demosthenes Kazanas, Dimitris M. Christodoulou, Ioannis Contopoulos, Papaloizou J. C. B., Shakura N. I.   +5 more
core   +1 more source