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Bilateral same-session intravitreal injections of antivascular endothelial growth factors

International Journal of Ophthalmology(English edition) 2014年第6期7卷 1017-1021页

作者： Nakhleh E.Abu-Yaghi ahmed N shokry Rami H Abu-Sbeit Department of Ophthalmology Faculty of Medicinethe University of Jordan

AIMTo document the indications, safety and possible complications of bilateral same-session intravitreal anti-vascular endothelial growth factor (VEGF) injections performed in the ophthalmic operating room.

关键词： anti-vascular endothelial growth factor diabetic macular edema age-related macular degeneration endophthalmitis visual acuity

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A WBAN for Human Movement Kinematics and ECG Measurements

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E-Health Telecommunication Systems and Networks 2012年第2期1卷 19-25页

作者： ahmed Baraka ahmed shokry Ihab Omar Saged Kamel Tarek Fouad Mohamad Abou El-Nasr Heba Shaban Arab Academy for Science Technology & Maritime Transport (AASTMT) P.O. Box 1029 Abu Kir Campus Alexandria Egypt

Biomedical applications of body area networks (BANs) are evolving, where taking periodic medical readings of patients via means wireless technologies at home or in the office will aid physicians to periodically supervise the patient’s medical status without having to see the patient. Thus, one important objective of BANs is to provide the doctor with the medical readings that can be collected electronically without being in close proximity to the patient. This is done through the measurement of the patient’s physiological signals via means of wearable sensors. This paper investigates wireless BAN cooperation via actual measurements of human movement kinematics and electrocardiogram (ECG), which are believed to provide patients with easy healthcare for continuous health-monitoring. The collected information will be processed using specially designed software, which in turn will enable the patient to send a full medical chart to the physician’s electronic device. In this way, physicians will have the ability to monitor their patients more efficiently.

关键词： Body Area Networks (BANs) Electrocardiogram (ECG) Human Gait and Movement Kinematics

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Thrust characteristics of nano-carbon/Al/oxygenated salt nanothermites for micro-energetic applications

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Defence Technology（防务技术） 2023年第12期30卷 55-69页

作者： ahmed Fahd Alex Baranovsky Charles Dubois Jamal Chaouki Sherif Elbasuney Shady shokry Chemical Engineering Department Ecole Polytechnique de MontrealMontrealH3C 3A7Canada Energetic Materials and Nanotechnology Research Center Technical Research CenterCairo11765Egypt Mechanical and Mechatronics Engineering Department University of WaterlooOntarioN2L 3G1Canada Head of Nanotechnology Research Center Military Technical CollegeCairo11767Egypt Laser and Optoelectronics Research Center Technical Research CenterCairo11765Egypt

Combustion within small motors is key in the application-specific development of nanothermite-based micro-energetic systems. This study evaluates the performance of nanothermite mixtures in a converging-diverging nozzle and an open tube. Mixtures were prepared using nano-aluminum(n-Al),potassium perchlorate(KClO_(4)), and different carbon nanomaterials(CNMs) including graphene-oxide(GO), reduced GO, carbon nanotubes(CNTs) and nanofibers(CNFs). The mixtures were packed at different densities and ignited by laser beam. Performance was measured using thrust measurement,high-speed imaging, and computational fluid dynamics modeling, respectively. Thrust, specific impulse(ISP), volumetric impulse(ISV), as well as normalized energy were found to increase notably with CNM content. Two distinctive reaction regimes(fast and slow) were observed in combustion of low and high packing densities(20% and 55%TMD), respectively. Total impulse(IFT) and ISPwere maximized in the 5%GO/Al/KClO_4 mixture, producing 7.95 m N·s and 135.20 s respectively at 20%TMD, an improvement of 57%compared to a GO-free sample(5.05 m N·s and 85.88 s). CFD analysis of the motors over predicts the thrust generated but trends in nozzle layout and packing density agree with those observed experimentally;peak force was maximized by reducing packing density and using an open tube. The numerical force profiles fit better for the nozzle cases than the open tube scenarios due to the rapid nature of combustion. This study reveals the potential of GO in improving oxygenated salt-based nanothermites,and further demonstrates their applicability for micro-propulsion and micro-energetic applications.

关键词： Nanothermites Graphene oxide Reduced graphene oxide Carbon nano material Oxygenated salts Laser ignition Computational fluid dynamics

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Development of Primary Percutaneous Coronary Intervention as a National Reperfusion Strategy for Patients with ST-Elevation Myocardial Infarction and Assessment of Its Use in Egypt

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Cardiovascular Innovations and Applications 2020年第2期4卷 269-278页

作者： Mohamed Sobhy ahmed Elshal Noha Ghanem Hosam Hasan-Ali Nabil Farag Nireen Okasha El Sayed Farag Mohamed Sadaka Hisham Abo El Enein Sameh Salama Hazem Khamis Khaled shokry Hany Ragy Amany Elshorbagy Radwa Mehanna Cardiology Department Faculty of MedicineAlexandria University HospitalAlexandriaEgypt International Center for Organization and Marketing AlexandriaEgypt Cardiology Department Faculty of Medicine Assiut University HospitalAssiut GovernorateEgypt Cardiology Department Faculty of Medicine Ain Shams University HospitalHeliopolisEgypt Cardiology Department Nasser InstituteCairoEgypt Cardiology Department Faculty of MedicineZagazig University HospitalZagazigEgypt Cardiology Department Faculty of MedicineBanha University HospitalBanhaEgypt Cardiology Department Faculty of MedicineKasr El Ainy HospitalKasr Al AinyEgypt Cardiology Department Wady El Nile HospitalZeitounEgypt Cardiology Department Military HospitalHeliopolisCairoEgypt Cardiology Department National Heart InstituteHeliopolisCairoEgypt Physiology Department Faculty of MedicineAlexandria UniversityAlexandriaEgypt

Objective:Early treatment of acute ischemia of the heart by performing immediate percutaneous coronary intervention(PCI)to restore blood fl ow in patients with the clinical presentation of an acute coronary syndrome and more specifi cally with ST-elevation myocardial infarction(STEMI)can save *** study aims to identify the mean time(door to balloon time and fi rst contact to balloon time)to primary PCI for STEMI patients and to assess the percentage of primary PCI and its success rate in ***:A registry study of patients presenting to cardiac centers in Egypt was designed,where patients’basic characteristics,the treatment strategy,and the door to balloon time and the fi rst contact to balloon time were ***:One thousand six hundred fi fty STEMI patients with a mean age of 57 years were included in the *** transfer for primary PCI was the most used treatment strategy,representing 74.6%of all treatment strategies *** door to balloon time and the fi rst contact to balloon time were 50 and 60 minutes,respectively,with a primary PCI success rate of 65.1%.Conclusion:The registry study results showed a marked improvement by implementation of the best treatment strategy with respect to the time factor to achieve a better outcome for STEMI patients in Egypt.

关键词： ST-elevation myocardial infarction primary percutaneous coronary intervention door to balloon time fi rst medical contact to balloon time

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Thrust characteristics of nano-carbon/Al/oxygenated salt nanothermites for micro-energetic applications

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Defence technology 2023年第12期

作者： ahmed Fahd Alex Baranovsky Charles Dubois Jamal Chaouki Sherif Elbasuney Shady shokry

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