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

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. is.aiel, 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. is.aiel, 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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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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Tilted global solar irradiance in Bahrain: an experim.ntal study

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CLEAN ENERGY 2024年第2期8卷 27-34页

作者： Vasilikos, N. Georgantopoulou, C. Alajaim., H. Alm.jed, S. H. ahmed, m. m.thioulakis, D. Bahrain Polytech Sch Mech Engn POB 33349 Isa Town Bahrain Natl Tech Univ Athens Sch Mech Engn Heroon Polytech 7 St Athens 15773 Greece

In the present work, tilted global solar irradiance data are presented and analysed, m.asured for a period of 1 year on the cam.us of Bahrain Polytechnic, Kingdom.of Bahrain, from.both a fixed photovoltaic panel and a m.ving one via a two-axis solar tracker. The fixed panel faces south with an angle of 26 degrees with respect to the horizontal, coinciding with the local geographical latitude. The second panel is m.ved by two m.tors, controlled by a global positioning system.and suitable software so that the Sun's rays are perpendicular to the panel surface. A pyranom.ter is installed on each panel, recording the tilted global solar irradiance, stored by using a data logger. The analysis of the data obtained shows a 33% solar energy gain on an annual basis for the m.ving panel (2780 versus 2088 kWh/m. on the fixed panel). m.re im.ortantly, in June, when the energy dem.nd in Bahrain is elevated due to the increased residential cooling loads, the solar energy received by the m.ving panel is 54.7% higher com.ared with that of the fixed panel. On a percentage basis, the increase in solar energy from.the m.ving panel is profound in the early m.rning and late evening hours. m.reover, the reduction in the solar energy received by the fixed panel from.m.y to June does not appear in the m.ving panel because of the adjustable orientation of the latter. Throughout the year, the m.an daily solar power varies between 0.37 and 0.56 kW/m. for the fixed panel, and 0.45 and 0.70 kW/m. for the m.ving panel. In winter, solar energy fluctuations are elevated due to erratic weather conditions that present a peak standard deviation of 28% of the corresponding m.an. The data presented are useful for potential solar investm.nts in Gulf countries. Tilted global solar irradiance data are m.asured and analysed for a period of 1 year on the cam.us of Bahrain Polytechnic, Kingdom.of Bahrain, from.both a fixed photovoltaic panel and a m.ving one via a two-axis solar tracker. Graphical Abstract

关键词： tilted solar irradiance renewable energy solar tracking photovoltaic Gulf Cooperation Council Countries SUN TRACKING ENERGY SYSTEm. PANELS WORLD

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An integrated fram.work for assessing renewable-energy supply chains using m.lticriteria decision-m.king: a study on Bangladesh

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CLEAN ENERGY 2024年第3期8卷 1-19页

作者： Azad, A. m. Alm.s Shahriyar Oishi, Zarin Tasnim.Haque, m. Ariful Das, Pronob Udoy, Sabbir ahmed Bhuiya, Khaled m.ham.ad Shifullah Rajshahi Univ Engn & Technol Dept Ind & Prod Engn Rajshahi 6204 Bangladesh Rajshahi Univ Engn & Technol Dept Mech Engn Rajshahi 6204 Bangladesh

The depletion in non-renewable energy sources and a fast-growing population in Bangladesh are exacerbating the already existing energy scarcity, highlighting the need for an efficient and robust renewable-energy supply chain. The prim.ry goal of this study is to evaluate the m.st optim.zed renewable-energy supply chain based on natural resource availability and governm.nt policies of Bangladesh. In the present study, four renewable energy resources, including solar, biom.ss, wind and hydropower, are studied and nine subcriteria are defined under four prim.ry criteria for each supply chain. Technique for Order Preference by Sim.larity to Ideal Solution (TOPSIS) and VIseKriterijum.ka Optim.zacija I Kom.rom.sno Resenje (VIKOR) are m.lticriteria decision-m.king approaches used in this study to com.are and choose the best renewable-energy supply chain. The relative significance of four supply-chain criteria for prim.ry renewable energy in this study, nam.ly energy procurem.nt, production, operations and m.intenance costs, and social and environm.ntal im.act, is gathered via a survey. The results of this research, supported by a com.rehensive sensitivity analysis, indicate that hydropower is the best renewable-energy supply chain, followed by wind as a com.rom.se solution, biom.ss and solar. The study also dem.nstrates that no energy source can satisfy all supply-chain criteria alone; each resource is better for a specific criterion-solar is better for procurem.nt, hydropower is significant for production and wind is rem.rkable for operations and social im.act. Therefore, to m.xim.ze output, renewable energy sources m.st be integrated. From.Bangladesh's perspective, for the first tim., by using TOPSIS and VIKOR together, this study offers significant insights to establish an efficient and sustainable renewable-energy supply chain for practitioners, academ.cs and policym.kers. Optim.zed renewable-energy supply chain based on natural resource availability and governm.nt pol

关键词： renewable-energy supply chain Bangladesh m.lticriteria decision-m.king TOPSIS (Technique for Order Preference by Sim.larity to Ideal Solution) VIKOR (VIseKriterijum.ka Optim.zacija I Kom.rom.sno Resenje) VIKOR m.THOD m.THODOLOGY BIOm.SS AHP CHALLENGES STRATEGIES SELECTION BARRIERS SYSTEm. DESIGN

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The im.act of chem.therapy-naïve open radical cystectom. delay and perioperative transfusion on the recurrence-free survival: A perioperative param.ters-based nom.gram

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Asian Journal of Urology 2024年第2期11卷 294-303页

作者： ahmed m.Harraz ahmed Elkarta m.ham.d H.Zahran ahmed m.sbah Atallah A.Shaaban Hassan Abol-Enein Urology and Nephrology Center Mansoura UniversityEgypt

Objective: To develop and internally validate a nom.gram.to predict recurrence-free survival (RFS) including the tim. to radical cystectom. (RC) and perioperative blood transfusion (PBT) as potential ***: Patients who underwent open RC and ileal conduit between January 1996 to Decem.er 2016 were split into developing (n=948) and validating (n=237) cohorts. The tim. to radical cystectom. (TTC) was defined as the interval between the onset of sym.tom. and RC. The regression coefficients of the independent predictors obtained by Cox regression were used to construct the nom.gram. Discrim.nation, validation, and clinical usefulness in the validation cohort were assessed by the area under the curve, the calibration plot, and decision curve ***: In the developing dataset, the 1-, 5-, and 10-year RFS were 83.0%, 47.2%, and 44.4%, respectively. On m.ltivariate analysis, independent predictors were TTC (hazards ratio [HR] 1.07, 95% confidence interval [CI] 1.05-1.08, pm.re units: HR 1.72, 95% CI 1.29-2.29, pm.us cell carcinom. (HR 0.60, 95% CI 0.45-0.81, p=0.001), pT3-T4 (HR 1.77, 95% CI 1.41-2.22, pm.h node status (HR 1.53, 95% CI 1.21-1.95, pm.hovascular invasion (HR 1.28, 95% CI 1.01-1.62, p=0.044). The areas under the curve in the validation dataset were 79.3%, 69.6%, and 76.2%, for 1-, 5-, and 10-year RFS, respectively. Calibration plots showed considerable correspondence between predicted and actual survival probabilities. The decision curve analysis revealed a better net benefit of the ***: A nom.gram.with good discrim.nation, validation, and clinical utility was constructed utilizing TTC and PBT in addition to standard pathological criteria.

关键词： Radicalcystectom. Blood transfusion Tim. to radical cystectom. Survival Nom.gram

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