Results 51 to 60 of about 105,352 (124)
Performance evaluation technique for screen‐to‐camera‐based optical camera communications
IET Optoelectronics, 2023 The increasing development and utilisation of optical camera communications offer an excellent opportunity for the implementation of the smartphone‐to‐smartphone‐based visible light communications (S2SVLC) system.
Vaigai Nayaki Yokar +3 more
doaj +1 more source
Imaging Spectropolarimetry with IBIS II: on the fine structure of G-band bright features [PDF]
, 2010 We present new results from first observations of the quiet solar photosphere performed through the Interferometric BIdimensional Spectrometer (IBIS) in spectropolarimetric mode. IBIS allowed us to measure the four Stokes parameters in the FeI 630.15 nm and FeI 630.25 nm lines with high spatial and spectral resolutions for 53 minutes; the polarimetric ...
arxiv +1 more source
The influence of galaxy surface brightness on the mass-metallicity relation [PDF]
, 2015 We study the effect of surface brightness on the mass-metallicity relation using nearby galaxies whose gas content and metallicity profiles are available. Previous studies using fiber spectra indicated that lower surface brightness galaxies have systematically lower metallicity for their stellar mass, but the results were uncertain because of aperture ...
arxiv +1 more source
Impact of bright-dark exciton thermal population mixing on the brightness of CsPbBr$_3$ nanocrystals [PDF]
Understanding the interplay between bright and dark exciton states is crucial for deciphering the luminescence properties of low-dimensional materials. The origin of the outstanding brightness of lead halide perovskites remains elusive. Here, we analyse temperature-dependent time-resolved photoluminescence to investigate the population mixing between ...
arxiv +1 more source
Bright-dark solitons and their collisions in mixed N-coupled nonlinear Schrödinger equations [PDF]
, 2007 Mixed type (bright-dark) soliton solutions of the integrable N-coupled nonlinear Schr{\"o}dinger (CNLS) equations with mixed signs of focusing and defocusing type nonlinearity coefficients are obtained by using Hirota's bilinearization method. Generally, for the mixed N-CNLS equations the bright and dark solitons can be split up in $(N-1)$ ways.
arxiv +1 more source
The HI Content and Extent of Low Surface Brightness Galaxies - Could LSB Galaxies be Responsible for Damped Ly-alpha Absorption? [PDF]
arXiv, 2001 Low surface brightness galaxies, those galaxies with a central surface brightness at least one magnitude fainter than the night sky, are often not included in discussions of extragalactic gas at z < 0.1. In this paper we review many of the properties of low surface brightness galaxies, including recent studies which indicate low surface brightness ...
arxiv
Applied Sciences, 2019 Thermal infrared (TIR) pedestrian tracking is one of the major issues in computer vision. Mean-shift is a powerful and versatile non-parametric iterative algorithm for finding local maxima in probability distributions. In existing infrared data, and mean-
Sungmin Yun, Sungho Kim
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Removal of iron and titanium contaminants from Jordanian Kaolins by using chemical leaching
Journal of Taibah University for Science, 2018 The present study deals with chemical leaching tests conducted on Batn El-Ghoul kaolin clay deposit, south Jordan. Mineral identification and characterization studies were conducted using X-ray diffraction.
M. Gougazeh
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Association of calcium network bright points with underneath photospheric magnetic patches [PDF]
, 2019 Recent dedicated Hinode polar region campaigns revealed the presence of concentrated kilogauss patches of magnetic field in the polar regions of the Sun which are also shown to be correlated with facular bright points at the photospheric level. In this work, we demonstrate that this spatial intermittency of the magnetic field persists even up to the ...
arxiv +1 more source
BAZI KİREÇTAŞLARININ PARLATILMASINDA ABRASİV KAFA DEVRİNİN ETKİSİ
Uludağ University Journal of The Faculty of Engineering, 2018 Bu çalışma, kireçtaşların parlatılabilirlik özellikleri üzerine abrasiv kafa devrinin etkisinin incelenmesi amacıyla yapılmıştır. Bu çalışmada ticari olarak üretimi yapılan iki adet kireçtaşı örneği kullanılmıştır.
Sevgi Çeti̇ntaş, Turgay Türk
doaj +1 more source