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Semantic Pneumonia Segmentation and classification for covid-19 Using Deep Learning Network

computers, materials & continua 2022年第10期73卷 1141-1158页

作者： m.m.Lotfy Hazem m.el-Bakry m.m.elgayar Shaker el-Sappagh G.Abdallah m.i A.A.Soliman Kyung Sup Kwak Department of mathematics Faculty of ScienceArish UniversityArish45511Egypt Department of information Systems Faculty of Computers and InformationMansoura UniversityMansoura35511Egypt Department of information Technology Faculty of Computers and InformationMansoura UniversityMansoura35511Egypt centro Singular de investigación en Tecnoloxías intelixentes(ciTiUS) Universidade de Santiago de CompostelaSantiago de Compostela15705Spain information Systems Department Faculty of Computers and Artificial IntelligenceBenha UniversityBenha13512Egypt Department of information and communication Engineering Inha UniversityIncheon22212Korea

Early detection of the covid-19 disease is essential due to its higher rate of infection affecting tens of millions of people,and its high number of deaths also by 7%.For that purpose,a proposed model of several stages was *** first stage is optimizing the images using dynamic adaptive histogram equalization,performing a semantic segmentation using DeepLabv3Plus,then augmenting the data by flipping it horizontally,rotating it,then flipping it *** second stage builds a custom convolutional neural network model using several pre-trained ***,the model compares the pre-trained data to the new output,while repeatedly trimming the best-performing models to reduce complexity and improve memory *** experiments were done using different techniques and ***,the proposed model achieved an average accuracy of 99.6%and an area under the curve of 0.996 in the covid-19 *** paper will discuss how to train a customized intelligent convolutional neural network using various parameters on a set of chest X-rays with an accuracy of 99.6%.

关键词： SArS-cOV2 cOViD-19 pneumonia deep learning network semantic segmentation smart classification

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Optimal analytical and numerical approximations to the(un)forced(un)damped parametric pendulum oscillator

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communications in Theoretical Physics 2022年第10期74卷 16-29页

作者： Haifa A Alyousef m r Alharthi Alvaro H Salas S A el-Tantawy Department of physics College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Department of mathematics and Statistics College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of mathematics and Statistics Universidad Nacional de ColombiaFIZMAKO Research GroupSede ManizalesColombia Department of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt research center for Physics(rcP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversitySaudi Arabia

The(un)forced(un)damped parametric pendulum oscillator(PPO)is analyzed analytically and numerically using some simple,effective,and more accurate *** the first technique,the ansatz method is employed for analyzing the unforced damped PPO and for deriving some optimal and accurate analytical approximations in the form of angular mathieu *** the second approach,some approximations to(un)forced damped PPO are obtained in the form of trigonometric functions using the ansatz *** the third approach,He’s frequency-amplitude principle is applied for deriving some approximations to the(un)damped *** the forth approach,He’s homotopy technique is employed for analyzing the forced(un)damped PPO *** the fifth approach,the p-solution method,which is constructed based on Krylov–Bogoliúbov mitropolsky method,is introduced for deriving an approximation to the forced damped *** the final approach,the hybrid Padé-finite difference method is carried out for analyzing the damped PPO *** proposed techniques are compared to the fourth-order runge–Kutta(rK4)numerical ***,the global maximum residual distance error is estimated for checking the accuracy of the obtained *** proposed methodologies and approximations can help many researchers in studying and investigating several nonlinear phenomena related to the oscillations that can arise in various branches of science,*** and oscillations in plasma physics.

关键词： parametric pendulum equation Ansatz method He’s frequency-amplitude principle He’s homotopy technique Krylov-Bogoliúbov mitropolsky method the hybrid Padé-finite difference method

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Petrogenesis of granitic rocks of the Jabal Sabir area,South Taiz city,Yemen republic

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chinese Journal Of Geochemistry 2011年第2期30卷 193-203页

作者： rasmy i.el-Gharbawy Department of Geology Faculty of ScienceAin Shams UniversityCairoEgypt

The Tertiary granitic intrusive body(～21 ma) of the Jabal Sabir area was emplaced during the early stages of the red Sea *** intrusive body occupies the southern sector of Taiz *** is triangular in shape,affected by two major faults,one of which is in parallel to the Gulf of Aden,and the other is in parallel to the eastern margin of the red Sea *** petrogenesis of such a type of intrusion provides additional information on the origin of the Oligo-miocene magmatic activity in relation to the rifting tectonics and evolution of this part of the Arabian *** granitic body of Jabal Sabir belongs to the alkaline or peralkaline suite of A-type *** is enriched in the *** tight bundle plot of its rEE pattern reflects neither tectonism nor *** granite body is characterized by high alkali(8.7%-10.13%),high-field strength elements(HFSE),but low Sr and Ba and high Zn *** abundance of xenoliths from the neighboring country rocks and prophyritic texture of the Jabal Sabir granite body indicate shallow depths of *** major and trace elements data revealed a fractional crystallization origin,probably with small amounts of crustal *** is interpreted that the Jabal Sabir intrusion represents an anorogenic granite pertaining to the A-type,formed in a within-plate environment under an extensional tectonic setting pertaining to rift-related granites.

关键词： A 类型花岗石也门共和国阿拉伯的努比亚的盾红海 rifting 在内板花岗石

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Barrett's esophagus:Prevalence and risk factors in patients with chronic GErD in Upper Egypt

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World Journal of Gastroenterology 2009年第28期15卷 3511-3515页

作者： Yasser m Fouad madiha m makhlouf Heba m Tawfik Hussein el Amin Wael Abdel Ghany Hisham r el-khayat Department of Tropical medicine and Gastroenterology Minya University Department of Pathology Minya University Department of internal medicine Gastroenterology Unit Assuit University Department of Gastroenterology Theodore Bilharz research institute

Aim： To determine the prevalence and possible risk factors of Barrett＇s esophagus （BE） in patients with chronic gastroesophageal reflux disease （GErD） in Ei minya and Assuit, Upper Egypt. mETHODS： One thousand consecutive patients with chronic GErD symptoms were included in the study over 2 years. They were subjected to history taking including a questionnaire for GErD symptoms, clinical examination and upper digestive tract endoscopy. Endoscopic signs suggestive of columnar-lined esophagus （cLE） were defined as mucosal tongues or an upward shift of the squamocolumnar junction. BF was diagnosed by pathological examination when specialized intestinal metaplasia was detected histologically in suspected cLE. pH was monitored in 40 patients. rESULTS： BE was present in 7.3% of patients with chronic GErD symptoms, with a mean age of 48.3 ± 8.2 years, which was significantly higher than patients with GErD without BE （37.4 ± 13.6 years）. Adenocarcinoma was detected in eight cases （0.8%）, six of them in BE patients. There was no significant difference between patients with BE and GErD regarding sex, smoking, alcohol consumption or symptoms of GErD. Patients with BE had significantly longer esophageal acid exposure time in the supine position, measured by pH monitoring. cONcLUSiON： The prevalence of BE in patients with GErD who were referred for endoscopy was 7.3%. BE seems to be associated with older age and more in patients with nocturnal gastroesophageal reflux.

关键词： Barrett's esophagus Gastrointestinal Endoscopy Gastroesophageal reflux risk factors

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Liquid Film on Unsteady Stretching Sheet with General Surface Temperature and Viscous Dissipation

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chinese Physics Letters 2010年第11期27卷 5-8页

作者： r. c. Aziz i. Hashim Faculty of Science and Technology Open University Malaysia 50480 Kuala Lumpur Malaysia centre for modelling and Data Analysis School of Mathematical Sciences Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia

We study the effects of viscous dissipation on flow and heat transfer in a thin liquid film on an unsteady stretching sheet. A general surface temperature is taken into consideration. The velocity and temperature fields are solved using the homotopy analysis method. The results show that the increasing values of the Eckert number can increase temperature distribution and the heat transfer rate.

关键词： Soft matter liquids and polymers Surfaces interfaces and thin films

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Effects of iron manipulation on trace elements level in a model of colitis in rats

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World Journal of Gastroenterology 2005年第28期11卷 4396-4399页

作者： m Barollo r D'incà m Scarpa V medici r cardin m Bortolami c ruffolo i Angriman Gc Sturniolo Department of Surgical and Gastroenterological Sciences University of Padua Italy

Aim: Trace elements (TE) metabolism is altered in inflammatory bowel diseases. TE (zinc and copper) are constituents of antioxidant enzymes. iron is involved in the pathogenesis of chronic inflammation. The aim was to evaluate zinc and copper status and the effects of iron manipulation in experimental ***: Twenty-four male Sprague-Dawley rats were divided into four groups: standard diet, iron-deprived diet,iron-supplemented diet, and sham-treated *** damage was scored. DNA adducts were measured in the colon. Liver and colonic concentration of TE were ***: macroscopic damage was reduced in irondeprived groups and increased in iron-supplemented *** to the DNA was reduced in iron-deprived groups and increased in iron-supplemented groups. Liver and colonic iron concentrations were reduced in iron-deprived and increased in iron-supplemented rats. Liver zinc concentration was reduced after supplementation whereas colonic levels were similar in controls and treated rats. Liver copper concentration was reduced in all the colitic groups except in the iron-supplemented group whereas colonic concentration was increased in iron-deprived ***: iron deprivation diminishes the severity of DNBS colitis while supplementation worsens colitis. Zinc and copper status are modified by iron manipulation.

关键词： Trace elements colitis

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HDLiDP: A Hybrid Deep Learning intrusion Detection and Prevention Framework

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computers, materials & continua 2022年第11期73卷 2293-2312页

作者： magdy m.Fadel Sally m.el-Ghamrawy Amr m.T.Ali-eldin mohammed K.Hassan Ali i.el-Desoky computer Engineering and Systems Department Faculty of EngineeringMansoura UniversityMansoura35516DKEgypt Head of communications and computer Engineering Department MISR Higher Institute for Engineering and TechnologyMansoura35111DKEgypt mechatronics Department Faculty of EngineeringHours University in Egypt(HUE)New Damietta34517DTEgypt

Distributed denial-of-service(DDoS)attacks are designed to interrupt network services such as email servers and webpages in traditional computer ***,the enormous number of connected devices makes it difficult to operate such a network *** defined networks(SDN)are networks that are managed through a centralized control system,according to *** controller is the brain of any SDN,composing the forwarding table of all data plane network *** the advantages of SDN controllers,DDoS attacks are easier to perpetrate than on traditional *** the controller is a single point of failure,if it fails,the entire network will *** paper offers a Hybrid Deep Learning intrusion Detection and Prevention(HDLiDP)framework,which blends signature-based and deep learning neural networks to detect and prevent *** framework improves detection accuracy while addressing all of the aforementioned *** validate the framework,experiments are done on both traditional and SDN datasets;the findings demonstrate a significant improvement in classification accuracy.

关键词： Software defined networks(SDN) distributed denial of service attack(DDoS) signature-based detection whale optimization algorism(WOA) deep learning neural network classifier

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Effect of conductive Fillers on the cyclic Stress-Strain and Nano-Scale Free Volume Properties of Silicone rubber

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chinese Journal of Polymer Science 2014年第5期32卷 558-567页

作者： m.H.Abd-el Salam S.el-Gamal m.mohsen D.m.Abd el-maqsoud Physics Department Faculty of Education Ain Shams University Physics Department Faculty of Science Ain Shams University

The effect of carbon black （cB） and graphite （G） powders on the macroscopic and nano-scale free volume properties of silicone rubber based on poly（di-methylsiloxane）（PDmS） was studied through thermal and cyclic mechanical measurements, as well as with positron annihilation lifetime spectroscopy （PALS）. The melting temperature of the composites （Tm） and the endothermic enthalpy of melting （ΔHm） were estimated by differential scanning calorimetry （DSc）. Tm and the degree of crystallinity （χc） of PDmS composites were found to decrease with increasing the cB content. This can be explained due to the increase in physical cross-linking which results in a decrease in the crystallite thickness. Besides, χc was found to be dependent on the filler type. cyclic stress-strain behavior of PDmS loaded with different contents of filler has been studied. mullins ratio （rm） was found to be dependent on the filler type and content. it was found that, rm increases with increasing the filler content due to the increase in physical cross-linking which results in a decrease in the size of free volume, as observed through a decrease of the o-Ps lifetime τ3 measured by PALS. moreover, the hysteresis in PDmS-cB composites was more pronounced than in PDmS-G composites. Furthermore, a correlation was established between the free volume Vf and the mechanical properties of PDmS composites containing different fillers. A negative correlation was observed between Vf and rm.

关键词： Positron annihilation Positronium Free volume Si-rubber composite cyclic mechanical properties.

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influence of Silica Fume on corrosion Behaviour of reinforced Steel in Different media

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Journal of materials Science & Technology 2002年第1期18卷 83-88页

作者： Z.A.el-Hadi i.Z.Selim 等 Departmentofchemistry UniversityCollegeforGirlsAinShamsUniversityEgypt PhysicalchemistryDepartment NationalResearchCenterCairoEgypt

electrochemical and corrosion behaviour of reinforced steel embedded in cement pastes incorporating different amounts of silica fume as a partial replacement of cement has been studied in chloride and sulphate solutions by using different electrochemical techniques. The results indicate that, while steel passivity degree is low in the control samples' upon soaking in the corrosive media, it has been high in samples incorporating silica fume and increased with increasing silica fume content. The improvement effect of silica fume may be attributed to the pore solution structure of the cement paste, which limits the mobility of aggressive ions near the surface of the steel. The mechanism of steel corrosion due to chloride and sulphate attack and passivation effect of silica fume are discussed.

关键词： corrosion reinforced steel cement pastes Silica fume Aggressive ions

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Timing of Proterozoic magmatism in the Sunsas belt, Bolivian Precambrian Shield, SW Amazonian craton

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Geoscience Frontiers 2021年第6期12卷 277-293页

作者： ingrid m.Nedel reinhardt A.Fuck Amarildo S.ruiz Gerardo r.matos-Salinas Alanielson da c.D.Ferreira instituto de Geociências Universidade de Brasília(UnB)Brasília-DFBrazil Faculdade de Geociências Universidade Federal de Mato GrossoCuiabá-MTBrazil instituto de investigaciones Geológicas y del medio Ambiente Universidad Mayor de San Andrés(UMSA)Pabellón GeologíaCalle 27Campus Universitario Cota CotaLa PazBolivia Department of Earth Sciences Stellenbosch UniversityPrivate Bag X1Matieland7602 StellenboschSouth Africa

We present new U–Pb zircon and monazite ages from the Sunsas belt granitic magmatism in Bolivia, SW Amazonian craton. The geochronological results revealed four major magmatic events recorded along the Sunsas belt domains. The older igneous event formed a granitic basement coeval to the rio Apa Terrane(1.95–1.85 Ga) in the southern domain. The second magmatic episode is represented by 1.68 Ga granites associated to the Paraguá Terrane(1.69–1.66 Ga) in the northern domain. The 1.37–1.34 Ga granites related to San ignacio orogeny represent the third and more pervasive magmatic event, recorded throughout the Sunsas belt. moreover, magmatic ages of ~1.42 Ga revealed that the granitogenesis associated to the Santa Helena orogeny also affected the Sunsas belt, indicating that it was not restricted to the Jauru Terrane. Lastly, the 1.10–1.04 Ga youngest magmatism was developed during the Sunsas orogeny and represents the final magmatic evolution related to rodinia assembly. Likewise, the 1.95–1.85 and 1.68 Ga inherited zircon cores obtained in the ~1.3 Ga and 1.0 Ga granite samples suggest strong partial melting of the Paleoproterozoic sources. The 1079 ± 14 ma and 1018 ± 6 ma monazite crystallization ages can be correlated to the collisional tectono-thermal event of the Sunsas orogeny, associated to reactions of medium-to high-grade metamorphism. Thus, the Sunsas belt was built by heterogeneous 1.95–1.85 Ga and 1.68 Ga crustal fragments that were reworked at 1.37–1.34 Ga and 1.10–1.04 Ga related to orogenic collages. Furthermore, the 1.01 Ga monazite age suggests that granites previously dated by zircon can bear evidence of a younger thermal history. Therefore, the geochronological evolution of the Sunsas belt may have been more complex than previously thought.

关键词： SW Amazonian craton Sunsas belt U–Pb geochronology Zircon monazite

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