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Blockchain(Research and Applications) 2022年第3期3卷 70-88页

作者： emad badawi Guy-Vincent Jourdan Iosif-Viorel Onut Faculty of Engineering University of OttawaOttawaON K1N 6N5Canada IBM Centre for Advanced Studies OttawaON K1R 7Y6Canada

The“Bitcoin Generator Scam”(BGS)is a cyberattack in which scammers promise to provide victims with free cryptocurrencies in exchange for a small mining *** this paper,we present a data-driven system to detect,track,and analyze the *** works as follows:we first formulate search queries related to BGS and use search engines to find potential instances of the *** then use a crawler to access these pages and a classifier to differentiate actual scam instances from benign ***,we automatically monitor the BGS instances to extract the cryptocurrency addresses used in the scam.A unique feature of our system is that it proactively searches for and detects the scam ***,we can find addresses that have not yet received any *** data collection project spanned 16 months,from November 2019 to February *** uncovered more than 8,000 cryptocurrency addresses directly associated with the scam,hosted on over 1,000 ***,these addresses have received around 8.7 million USD,with an average of 49.24 USD per *** 70%of the active addresses that we are capturing are detected before they receive any transactions,that is,before anyone is *** also present some post-processing analysis of the dataset that we have captured to aggregate attacks that can be reasonably confidently linked to the same attacker or *** system is one of the first academic feeds to the APWG eCrime Exchange *** has been actively and automatically feeding the database since November 2020.

关键词： Cryptocurrency Scam analysis Cyberattack Fraud detection Bitcoin Blockchain analysis Data mining

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Study of Recovery Stages in 2024 and 7075 Aircraft Materials Plastically Deformed by Using Nuclear and Electrical Techniques

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材料科学与工程（中英文A版） 2011年第3X期1卷 415-418页

作者： Nasser Abdel-Azeem Kamel Abdulla. A. Refeay emad A. badawi Physics Dept. Faculty of Science El-Minia University Minia Egypt

Positron annihilation and electrical measurements have been performed to study the isochronal annealing of wrought 2024 and 7075 aluminum alloys in a temperature range from RT to 773 K after being deformed at RT with 25% deformation. Two annealing stages of microstructures were distinguished which were attributed to recovery in 2024 due to point and dislocations respectively and only one due to dislocations in 7075.

关键词：塑性变形飞机材料恢复阶段电气技术核技术 7075铝合金等时退火正电子湮没

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Detecting Radiation Effect on AI and AlCu8.5 by Positron Annihilation Doppler Broadening Technique and Electrical Measurements

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材料科学与工程（中英文版） 2011年第4期5卷 400-405页

作者： Nasser Abdel-Azeem Kamel emad A. badawi Physics Department Faculty of Science EI-Minia University Egypt

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The Effect of （x-Radiation Dose on CR-39 Polymer Track Detectors Using Positron Annihilation Lifetime and UV-Spectroscopy

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材料科学与工程（中英文版） 2010年第11期4卷 48-52页

作者： Mostafa Fawzy Eissa Esmat Mohamed Hassan emad A. badawi Physics Department Faculty of Science Beni-Suef University Beni-Suef 62511 Egypt Physics Department Faculty of Science Aswan South rally University Aswan 81528 Egypt Physics Department Faculty of Science EI-Minia University EI-Minia 61519 Egypt

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