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- National Research Institute of Astronomy and GeophysicsEG7 papers
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5 papers · 1 filter
A Novel Watermarking Approach for Protecting Image Integrity based on a Hybrid Security Technique
Ahmad M. Nagm, Mohamed Torky, Khaled Y. Youssef
Digital Photo images are everywhere around us in journals, on walls, and over the Internet. However we have to be conscious that seeing does not always imply reality. Photo images…
Methanol and water maser observations separate disc and outflow sources in IRAS 19410+2336
M. S. Darwish, K. A. Edris, A. M. S. Richards +4
We investigate the kinematics of high mass protostellar objects within the high mass star forming region IRAS 19410+2336. We performed high angular resolution observations of 6.7-G…
New adaptive synchronization algorithm for a general class of hyperchaotic complex-valued systems with unknown parameters and its application to secure communication
A. A. -H. Shoreh, N. V. Kuznetsov, T. N. Mokaev
This report aims to study adaptive synchronization between a general class of hyperchaotic complex-valued systems with unknown parameters, which is motivated by extensive applicati…
The Main Role of Thermal Annealing in Controlling the Structural and Optical Properties of ITO Thin Film Layer
Moustafa Ahmed, Ahmed Bakry, Ammar Qasem +1
Here we report on studying the electronic and optical material properties of the technologically-relevant material indium tin oxide (ITO) as a function of thermal annealing. In thi…
OH maser toward IRAS 06056+2131: polarization parameters and evolution status
Mohamed Said darwish, Anita M. S. Richards, Sandra Etoka +4
We present high angular resolution observations of OH maser emission towards the high-mass star forming region IRAS 06056+2131. The observations were carried out using the UK radio…