Results 31 to 40 of about 164,436 (341)

Ionospheric Behaviors Over Korea Peninsula During the Super Geomagnetic Storm Using GPS Measurements [PDF]

Journal of Astronomy and Space Sciences, 2009
The super-geomagnetic storms called 2003 Halloween event globally occurred during the period of 29 through 31 which are the following days when the solar flares of X18 class exploded on 28 October 2003.
Jong-Kyun Chung, Byung-Kyu Choi, Jungho Baek, Geonhwa Jee, Jungho Cho   +4 more
doaj   +1 more source

Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)₃Al₂Ga₃O₁₂: Ce Ceramics

Crystals, 2022
Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)3Al2Ga3O12.
Mikhail Korzhik, Vasilii Retivov, Alexei Bondarau, Georgiy Dosovitskiy, Valery Dubov, Irina Kamenskikh, Petr Karpuk, Daria Kuznetsova, Valentina Smyslova, Vitaly Mechinsky, Vladimir Pustovarov, Dmitry Tavrunov, Evgeniy Tishchenko, Andrei Vasil’ev   +13 more
doaj   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Effects of Atmospheric Turbulence on Optical Wireless Communication in NEOM Smart City

Photonics, 2022
The foundation of any smart city requires an innovative and robust communication infrastructure. Many research communities envision free-space optical communication (FSO) as a promising backbone technology for the services and applications provided by ...
Ayshah S. Alatawi, Albashir A. Youssef, Mohamed Abaza, Mohammad Ammad Uddin, Ali Mansour   +4 more
doaj   +1 more source

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Comparison of Low‐Latitude Ionospheric Scintillation Forecasting Techniques Using a Physics‐Based Model

Space Weather, 2021
The temporal change in height of a specific electron density can be used as a proxy for vertical plasma drift (PVPD) at the magnetic equator. The use of PVPDs as a predictor of low‐latitude ionospheric scintillation during the subsequent evening has ...
L. D. Nugent, S. Elvidge, M. J. Angling
doaj   +1 more source

The Impact of Crystal Light Yield Non-Proportionality on a Typical Calorimetric Space Experiment: Beam Test Measurements and Monte Carlo Simulations

Instruments, 2022
Calorimetric space experiments were employed for the direct measurements of cosmic-ray spectra above the TeV region. According to several theoretical models and recent measurements, relevant features in both electron and nucleus fluxes are expected ...
Lorenzo Pacini, Oscar Adriani, Eugenio Berti, Pietro Betti, Gabriele Bigongiari, Lorenzo Bonechi, Massimo Bongi, Sergio Bottai, Paolo Brogi, Guido Castellini, Caterina Checchia, Raffaello D’Alessandro, Sebastiano Detti, Noemi Finetti, Paolo Maestro, Pier Simone Marrocchesi, Nicola Mori, Miriam Olmi, Paolo Papini, Claudia Poggiali, Sergio Ricciarini, Piero Spillantini, Oleksandr Starodubtsev, Francesco Stolzi, Alessio Tiberio, Elena Vannuccini   +25 more
doaj   +1 more source

Removal of Steroid Hormone Micropollutants by an Electrochemical Carbon Nanotube Membrane Flow‐Through Reactor: Role of Concentration and Degradation Mechanisms

Advanced Functional Materials, EarlyView.
A flow‐through electrochemical membrane reactor equipped with a carbon nanotube membrane eliminates the mass transfer limitation, achieving removals >97.5% for steroid hormone (SH) micropollutants through electrochemical adsorption and degradation, over a broad initial concentration varying from 50 to 106 ng L−1.
Siqi Liu, David Jassby, Andrea I. Schäfer   +2 more
wiley   +1 more source

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

The tropospheric scintillation prediction of earth-to-satellite link for Bangladeshi climatic condition [PDF]

Serbian Journal of Electrical Engineering, 2015
The performance of earth-to-satellite link largely depends on various environmental factors like rain, fog, cloud, and atmospheric effects like ionospheric and tropospheric scintillation.
Hossain Muhammad Sakir, Samad Muhammad Abdus   +1 more
doaj   +1 more source