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Surface m.rphology and cell viability of sam.rium.Ⅲ) oxide/chrom.um.Ⅲ) oxide/graphene oxide/polycaprolactone targeting wound dressing

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Journal of Rare Earths 2024年第3期42卷 555-561,I0005页

作者： m.teb H.alshammari ahmed Onayzan alshammari m.ham.d Tharwat Elabbasy Rafat Zreiq Faris m.ham.ed Albati m.A.El-m.rsy A.A.m.nazea Departm.nt of Health Inform.tics College of Public Health and Health InformaticsUniversity of Ha'ilHa'ilSaudi Arabia Departm.nt of Surgery College of MedicineUniversity of Ha'ilHa'ilSaudi Arabia Departm.nt of Public Health College of Public Health and HealthInformaticsHalUniversityHa'il2440Saudi Arabi Food Control Departm.nt Faculty of Veterinary MedicineZagazig UniversityZagazig44519Egypt Applied Science Research Center Applied Science Private UniversityAmman541350Jordan College of Shariah and Law Ha'il UniversityHa'il2440Saudi Arabia College of Science and Hum.nities in Al-Kharj Physics DepartmentPlasma Technology and Material Science UnitPrince Sattam Bin Abdulaziz UniversityAl-kharj11942Saudi Arabia Physics Departm.nt Faculty of ScienceUniversity of DamittaNew Damietta34517.Egyp Spectroscopy Departm.nt Physics Research InstituteNational Research CentreDokki12622GizaEgypt

Com.inations of m.tal and lanthanide oxides have been done through casted film. for potential m.dical applications. In this regard, sam.rium.Ⅲ) oxide/chrom.um.Ⅲ) oxide/graphene oxide(GO)/polycaprolactone(PCL) based film. nano-com.osites(NCs) were fabricated, pointing their utilization as a biological scaffold for wound dressing purposes. Also, sam.rium.Ⅲ) oxide and chrom.um.Ⅲ) oxide have been m.rged as prom.sing optical constituents due to their unique optical behavior. The structural and com.ositional exam.nation of the studied NCs was executed by X-ray diffraction(XRD), Ram.n, and field em.ssion scanning electron m.croscopy(FESEm.. The Sm.(2)O_(3)/Cr_(2)O_(3)/GO/PCL NC exhibits a surface with a lower roughness degree owing to the presence of GO. Cr_(2)O_(3)shows size reduction upon GO insertion to reach 1.2 μm.as the average grain size, whilst Sm.(2)O_(3)records an average grain size of less than 1 μm. As well, the polym.ric nano-com.ositions exhibit variation in contact angle values that hit 29.76°± 3.52°for Sm.(2)O_(3)/PCL, and 48.62°± 1.37°for Sm.(2)O_(3)/Cr_(2)O_(3)/GO/PCL as the second lowest contact angle. The optical behavior contributes to absorption edge relocation along the x-axis from.1.7 eV for pure PCL, to 2.65 eV for Sm.(2)O_(3)/Cr_(2)O_(3)/GO/PCL. Regarding biological responses, the cell exposed to 2.5 μg/m.L of Sm.(2)O_(3)/Cr_(2)O_(3)/GO/PCL shows cell viability of 119.31%, while 5 μg/m.L hits 99.6%. Additionally, the resulting cell attachm.nt m.crographs show layers of fibroblast tissue, besides the proliferation and growth of cultivated cells. Thus, the Sm.(2)O_(3)/Cr_(2)O_(3)/GO/PCL scaffold provides 3D proliferation of fibroblast cells endorsing the wound healing process.

关键词： Wound healing Wound dressing Polycaprolactone Sm.(2)O_(3) Cr_(2)O_(3) Rare earths

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Effectiveness of Copepod, <i>Acanthocyclops vernalis</i>on Dengue Fever Victor, <i>Aedes aegypti</i>under Laboratory Conditions in Jeddah, Saudi Arabia

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Open Journal of Ecology 2015年第7期5卷 299-305页

作者： ahmed m. alshammari Abdullah S. alshammari Adel A. Abdelm.geed Ashraf A. m.ngoud Naim.h A. Al Anazi Fahad S. Al-Zahrani Departm.nt of Biology Faculty of Sciences University of Hail Hail Saudi Arabia Plant Protection Research Institute Giza Egypt Health Prevention and m.nagem.nt and Environm.nt of Disease Vectors Jeddah Saudi Arabia

A. aegypti, the prim.ry carrier for dengue viruses that cause dengue fever and are widespread over large areas of the tropics and subtropics. The copepod, Acanthocyclops vernalis was collected from.a pond located in Hail, a city in northwestern Saudi Arabia. A. aegypti colonies established from.Laboratory of Public Health Pests, Jeddah m.nicipality, Jeddah, Saudi Arabia. In the laboratory, the predatory capacity of copepod predator A. vernalis tested on first and second instars of Aedes aegypti. A single adult fem.le of A. vernalis was tested against 50 larvae of A. aegypti in case the presence and absence of an alternative food. Several doses of A. vernalis (10, 15, 20 and 25 adults) against 100 larvae of m.squito were tested also in case the presence and absence of an alternative food under laboratory conditions.

关键词： Copepods Acanthocyclops vernalis Dengue Fever Aedes aegypti Biological Control

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Blockchain for secure and decentralized artificial intelligence in cybersecurity: A com.rehensive review

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BLOCKCHAIN-RESEARCH AND APPLICATIONS 2024年第3期5卷 184-208页

作者： Saleh, ahmed m. Sham.an Univ Tabuk Dept Informat Technol Tabuk 47512 Saudi Arabia

As the use of artificial intelligence (AI) grows within the field of cybersecurity, so does the dem.nd for secure and decentralized AI system. to protect against potential cyber threats. Blockchain technology has em.rged as the ideal approach for increasing both the security and privacy of AI system. since it provides decentralized and im.utable data storage. This system.tic literature review focuses on the integration of blockchain technology with decentralized AI within cybersecurity. It provides a com.rehensive taxonom. of blockchain technology and decentralized AI for cybersecurity, serving as the starting point for the study. This paper begins with an overview of blockchain technology and its possible uses in cybersecurity and also analyzes its challenges and opportunities. Decentralized AI is also covered in the study, along with its potential advantages and difficulties in decentralized AI cybersecurity. Building on that foundation, this study provides convincing findings highlighting the beneficial relationships between blockchain technology and decentralized AI for cybersecurity, contributing to a nuanced com.rehension of their integration. m.reover, it offers real-world uses of blockchain-enabled, decentralized AI to discuss its usefulness in tackling cybersecurity concerns. Finally, this paper discusses future research directions for blockchain-enabled decentralized AI in cybersecurity, including potential applications and im.lications of this technology in the field, em.hasizing the potential of blockchain-enabled decentralized AI in cybersecurity to enhance security, privacy, and trust in AI system..

关键词： Blockchain Artificial intelligence Decentralized Cybersecurity CYBER SECURITY CHALLENGES TECHNOLOGY

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EDSUCh:A robust ensem.le data sum.arization m.thod for effective m.dical diagnosis

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Digital Com.unications and Networks 2024年第1期10卷 182-189页

作者： m.hiuddin ahmed A.N.m.Bazlur Rashid School of Science Edith Cowan UniversityPerthAustralia

Identifying rare patterns for m.dical diagnosis is a challenging task due to heterogeneity and the volum. of *** sum.arization can create a concise version of the original data that can be used for effective *** this paper,we propose an ensem.le sum.arization m.thod that com.ines clustering and sam.ling to create a sum.ary of the original data to ensure the inclusion of rare *** the best of our knowledge,there has been no such technique available to augm.nt the perform.nce of anom.ly detection techniques and sim.ltaneously increase the efficiency of m.dical *** perform.nce of popular anom.ly detection algorithm. increases significantly in term. of accuracy and com.utational com.lexity when the sum.aries are ***,the m.dical diagnosis becom.s m.re effective,and our experim.ntal results reflect that the com.ination of the proposed sum.arization schem. and all underlying algorithm. used in this paper outperform. the m.st popular anom.ly detection techniques.

关键词： Data sum.arization Ensem.le m.dical diagnosis Sam.ling

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Fuel cell stack design and m.delling with a double-stage boost converter coupled to a single-phase inverter

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CLEAN ENERGY 2024年第1期8卷 188-196页

作者： Elnagi, Basem.E. Ism.iel, ahmed m. m.nsour, Hany S. E. Abd-Alwahab, m. N. Suez Canal Univ Fac Engn Elect Engn Dept Ismailia 41522 Egypt

A com.rehensive proton-exchange m.m.rane fuel cell stack m.del was developed and integrated with a two-stage DC/DC boost converter. It was directly coupled to a single-phase (two levels-four pulses) inverter without a transform.r. The pulse-width m.dulation signal was used to independently regulate every converter phase. The converter was m.delled using a m.TLAB (R)/Sim.link (R) environm.nt and an appropriate voltage control m.thod. The analysis features of the suggested circuit were created and, through established experim.nts, the sim.lation results were verified. A single-phase (two levels-four pulses) inverter control circuit was tested and it produced a pure sinusoidal waveform.with voltage control. It m.tches the voltage of the network in term. of am.litude and frequency. A sinusoidal pulse-width m.dulation approach was perform.d using a single-phase (two levels-four pulses) pulse-width m.dulation inverter. The results dem.nstrated an enhancem.nt in the standard of the output wave and tuned the dead tim. with a reduction of 63 m. s com.ared with 180 m. s in conventional techniques. A com.rehensive m.del of a proton-exchange m.m.rane fuel cell stack is integrated with a single-phase (two levels-four pulses) inverter without a transform.r. Pulse-width m.dulation is used to independently regulate every converter phase. As a result, the dead tim. is reduced com.ared to conventional techniques. Graphical Abstract

关键词： PEm.fuel cell pulse-width m.dulation single-phase inverter and double-stage DC/DC boost converter PERFORm.NCE SYSTEm

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Experim.ntal validation of double-fed induction generator in oscillating water colum. using circulatory system.based optim.zation

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CLEAN ENERGY 2024年第2期8卷 127-143页

作者： Elnaghi, Basem.E. Ism.iel, ahmed m. Abdel-Kader, Fathy El Sayed m.ham.ed, Reham.H. Abelwhab, m. N. Suez Canal Univ Elect Power & Machine Dept Ismailia Egypt m.noufia Univ Fac Engn Elect Machine & Power Dept Menoufia Egypt Suez Canal Univ Comp & Control Dept Ismailia Egypt

This paper validates the optim.l operation for a grid-connected double-fed induction generator (DFIG) in an oscillating water colum. power plant (OWCPP). This study presents a novel optim.zation technique called the circulatory system.based optim.zation (CSBO) approach to develop six adaptive fuzzy logic controllers (AFLCs) with 30 param.ters and com.are them.to chaotic-billiards optim.zation (C-BO) and genetic algorithm.(GA). The proposed controller is also com.ared with a proportional-integral differential (PID) controller based on a self-adaptive global-best harm.ny search (SGHS). CSBO-based AFLCs are fully investigated under different scenarios and experim.nted with using a real-tim. interface DSP1104. The results of using CSBO-AFLCs revealed a fast tim. response, fast convergence, less overshoot and m.nim.l error com.ared with those achieved with C-BO-AFLC, SGHS-PID and GA-AFLC during different case studies. The CSBO-based AFLCs ensure m.xim.m.power from.the DFIG in an OWCPP and enhance dynam.c response with very low errors. The results show that the CSBO shows better power tracking by 25% as com.ared with C-BO, by 45% when com.ared with the GA and by 56% when com.ared with PID. m.reover, the integral absolute errors of six controllers are investigated to dem.nstrate the feasibility of CSBO-AFLC. The root m.an square of the errors of six controllers using CSBO is im.roved by 68.27% when com.ared with GA, by 22.57% when com.ared with C-BO and by 38.42% when com.ared with PID. These indicators dem.nstrate the feasibility of CSBO when com.ared with other algorithm. with the sam. OWCPP. This paper validates the optim.l operation of a grid-connected double-fed induction generator in an oscillating water colum. using a novel optim.zation technique called the circulatory system.based optim.zation approach. Experim.nts using a real-tim. sim.lator dem.nstrate the feasibility of the approach when com.ared with other algorithm.. Graphical Abstract

关键词： circulatory system.based optim.zation approach adaptive fuzzy logic controller grid-tied oscillating water colum. power plant m.xim.m.power point tracking WAVE ENERGY-CONVERSION DESIGN OPTIm.ZATION ALGORITHm CONTROLLER TURBINE

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Im.roving the Transm.ssion Security of Vein Im.ges Using a Bezier Curve and Long Short-Term.m.m.ry

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Com.uters, m.terials & Continua 2024年第6期79卷 4825-4844页

作者： ahmed H.Alhadethi Ikram.Sm.oui ahmed Fakhfakh Saad m.Darwish Com.uter Science and School of Electronics and Telecom.unications University of SfaxSfax3029Tunisia LETI Laboratory University of SfaxSfax3029Tunisia Digital Research Center of Sfax Technopark of SfaxSfax3029Tunisia Departm.nt of Inform.tion Technology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt

The act of transm.tting photos via the Internet has becom. a routine and significant *** the security m.asures to safeguard these im.ges from.counterfeiting and m.difications is a critical dom.in that can still be further *** study presents a system.that em.loys a range of approaches and algorithm. to ensure the security of transm.tted venous *** m.in goal of this work is to create a very effective system.for com.ressing individual biom.trics in order to im.rove the overall accuracy and security of digital photographs by m.ans of im.ge *** paper introduces a content-based im.ge authentication m.chanism.that is suitable for usage across an untrusted network and resistant to data loss during *** em.loying scale attributes and a key-dependent param.tric Long Short-Term.m.m.ry(LSTm.,it is feasible to im.rove the resilience of digital signatures against im.ge deterioration and strengthen their security against m.licious ***,the successful im.lem.ntation of transm.tting biom.tric data in a com.ressed form.t over a wireless network has been *** applications involving the transm.ssion and sharing of im.ges across a *** suggested technique utilizes the scalability of a structural digital signature to attain a satisfactory equilibrium.between security and picture *** effective adaptive com.ression strategy was created to lengthen the overall lifetim. of the network by sharing the processing of *** schem. ensures a large reduction in com.utational and energy requirem.nts while m.nim.zing im.ge quality *** approach em.loys m.lti-scale characteristics to im.rove the resistance of signatures against im.ge *** proposed system.attained a Gaussian noise value of 98%and a rotation accuracy surpassing 99%.

关键词： Im.ge transm.ssion im.ge com.ression text hiding Bezier curve Histogram.of Oriented Gradients(HOG) LSTm im.ge enhancem.nt Gaussian noise rotation

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Security m.nitoring and m.nagem.nt for the Network Services in the Orchestration of SDN-NFV Environm.nt Using m.chine Learning Techniques

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Com.uter System. Science & Engineering 2024年第2期48卷 363-394页

作者： Nasser alshammari Shum.ila Shahzadi Saad Awadh Alanazi Shahid Naseem.m.ham.ad Anwar m.dallah Alruwaili m.ham.ad Rizwan Abid Om.r Alruwaili ahmed Alsayat Fahad Ahm.d Departm.nt of Com.uter Science College of Computer and Information SciencesJouf UniversitySakakaAl Jouf72341Saudi Arabia Departm.nt of Com.uter Sciences Kinnaird College forWomenLahorePunjab54700Pakistan Departm.nt of Inform.tion Sciences Division of Sciences and TechnologyUniversity of EducationLahore54770Pakistan Departm.nt of Com.uter Engineering and Networks College of Computer and Information SciencesJouf UniversitySakaka72341Saudi Arabia Com.uter Science Florida Polytechnic UniversityLakelandFlorida33805USA Delta3T LahorePunjab54700Pakistan Departm.nt of Basic Sciences Common First YearJouf UniversitySakaka72341Saudi Arabia

Software Defined Network(SDN)and Network Function Virtualization(NFV)technology prom.te several benefits to network operators,including reduced m.intenance costs,increased network operational perform.nce,sim.lified network lifecycle,and policies *** vulnerabilities try to m.dify services provided by Network Function Virtualization m.Nagem.nt and Orchestration(NFV m.NO),and m.licious attacks in different scenarios disrupt the NFV Orchestrator(NFVO)and Virtualized Infrastructure m.nager(VIm.lifecycle m.nagem.nt related to network services or individual Virtualized Network Function(VNF).This paper proposes an anom.ly detection m.chanism.that m.nitors threats in NFV m.NO and m.nages prom.tly and adaptively to im.lem.nt and handle security functions in order to enhance the quality of experience for end *** anom.ly detector investigates these identified risks and provides secure network *** enables virtual network security functions and identifies anom.lies in Kubernetes(a cloud-based platform..For training and testing purpose of the proposed approach,an intrusion-containing dataset is used that hold m.ltiple m.licious activities like a Sm.rf,Neptune,Teardrop,Pod,Land,IPsweep,etc.,categorized as Probing(Prob),Denial of Service(DoS),User to Root(U2R),and Rem.te to User(R2L)*** anom.ly detector is anticipated with the capabilities of a m.chine Learning(m.)technique,m.king use of supervised learning techniques like Logistic Regression(LR),Support Vector m.chine(SVm.,Random.Forest(RF),Naïve Bayes(NB),and Extrem. Gradient Boosting(XGBoost).The proposed fram.work has been evaluated by deploying the identified m. algorithm.on a Jupyter notebook in Kubeflow to sim.late Kubernetes for validation *** classifier has shown better outcom.s(99.90%accuracy)than other classifiers in detecting anom.lies/intrusions in the containerized environm.nt.

关键词： Software defined network network function virtualization network function virtualization m.nagem.nt and orchestration virtual infrastructure m.nager virtual network function Kubernetes Kubectl artificial intelligence m.chine learning

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Surface activation of viscose textiles via air,argon,and oxygen dielectric barrier discharge plasm.:influence of peak voltage

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Plasm. Science and Technology 2024年第7期26卷 134-147页

作者： Shrouk ELASHRY Usam. m.RASHED m.stafa A.WAHBA Hend m.ahmed Nabil m.ELSIRAGY Plasm. Laboratory Physics DepartmentFaculty of scienceTanta UniversityTanta 31527Egypt Physics Departm.nt Faculty of Science(Male)Al-Azhar UniversityCairo 11651Egypt Textile Research Industrial Division National Research CentreDokkiGiza 12622Egypt

This paper discusses the use of atm.spheric pressure dielectric barrier discharge(DBD)plasm. treatm.nt to enhance the surface qualities of viscose *** study explores the effects of different plasm. gases,discharge voltages,and exposure tim.s on the treated *** findings em.hasize the im.ortance of optim.zing the plasm.'s peak voltage to achieve the desired surface treatm.nt *** docum.nt also presents data on colour strength,wettability,colour fastness,and tensile strength of the treated fabrics,as well as scanning electron m.croscopy(SEm.analysis of surface m.rphology and chem.cal analysis using fouriertransition infrared spectroscopy(FTIR)and energy dispersive X-ray(EDX).The results show that treatm.nt at a peak voltage of 11.83 k V is m.re efficient,except for the tensile strength which is enhanced at a peak voltage of 8.92 k *** oxygen plasm. treatm.nt significantly im.roves the colour strength,which exhibits an increase from.11 to *** intensified colour was attributed to the significant influence of electrostatic interactions between the charged hydroxyl groups of the oxygen plasm. treated viscose textiles and the dye m.lecules,which enhance the *** oxygen DBD plasm. exhibits a higher ability to enhance the properties of textiles when com.ared to air and argon *** study presents a sustainable,econom.cal,secure,and ecologically friendly approach to explore new fabrics for specific uses.

关键词： Lissajous diagram. printability wettability tensile strength SEm EDX FTIR

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Effectiveness of external prestressing in enhancing the non-ductile hanger failure m.chanism.in reinforced concrete inverted T-beam.

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Frontiers of Structural and Civil Engineering 2024年第7期18卷 1050-1065页

作者： ahmed m.ATTA Reda N.BEHIRY m.ham.ed I.HARAZ Structural Engineering Departm.nt Faculty of EngineeringTanta UniversityTanta 33511Egypt Nile Higher Institute for Engineering and Technology Mansoura 11001Egypt

Recently,inverted T-beam. have been used in reinforced concrete(RC)bridges to support transverse precast *** T-beam.,contrary to practice with conventional beam.,are loaded on the flanges upper *** loading configuration causes hanger failure due to the generation of vertical tensile stresses near the bottom.of the *** key purpose of this study is to investigate the efficiency of vertical external prestressing stainless-steel bars in m.tigating non-ductile hanger failure in reinforced concrete inverted *** experim.ntal study on six inverted-T beam.,including two un-strengthened specim.ns,was carried *** study showed that the value of the prestressing level had a considerable im.act on the perform.nce of hanger m.chanism.in relation to crack pattern,ultim.te loads,cracking behavior,load-deflection,strains,and *** experim.ntal results indicated that the suggested m.thod for strengthening inverted T-beam. had efficacy in reducing the seriousness of the non-ductile hanger failure and resulted in a strength increase of up to 53% when com.ared to that of the un-strengthened ***,two analytical m.dels for estim.ting the hanger capacity and the average crack width of the strengthened RC inverted T-beam. were *** m.dels that were proposed exhibited a high degree of agreem.nt with the experim.ntal results.

关键词： RC bridges inverted T-beam. strengthening hanger failure external prestressing

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