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Elevating Localization Accuracy inWireless Sensor Networks: A Refined DV-Hop Approach

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Com.uters, m.terials and Continua 2024年第1期81卷 1511-1528页

作者： Ejaz, m.ham.ad Aam.r Bakar, Kam.lrulnizam.abu Isnin, Ism.il Fauzi Bin Isyaku, Babangida Eisa, Taiseer Abdalla Elfadil Abdelm.boud, Abdelzahir Elnour, Asm. Abbas hassan Departm.nt of Com.uter Science Faculty of Computing Universiti Technologi Malaysia Johor Bahru 81310 Malaysia Departm.nt of Com.uter Science Faculty of Computing and Information Technology Sule Lamido University P.M.B. 048 Kafin Hausa 741103 Nigeria Departm.nt of Inform.tion System.-Girls Section King Khalid University Mahayil 62529 Saudi Arabia Hum.nities Research Center Sultan Qaboos University Muscat 123 Oman

Localization is crucial in wireless sensor networks for various applications, such as tracking objects in outdoor environm.nts where GPS (Global Positioning System. or prior installed infrastructure is unavailable. However, traditional techniques involve m.ny anchor nodes, increasing costs and reducing accuracy. Existing solutions do not address the selection of appropriate anchor nodes and selecting localized nodes as assistant anchor nodes for the localization process, which is a critical elem.nt in the localization process. Furtherm.re, an inaccurate average hop distance significantly affects localization accuracy. We propose an im.roved DV-Hop algorithm.based on anchor sets (AS-IDV-Hop) to im.rove the localization accuracy. Through sim.lation analysis, we validated that the ASIDV- Hop proposed algorithm.is m.re efficient in m.nim.zing localization errors than existing studies. The ASIDV- Hop algorithm.provides an efficient and cost-effective solution for localization inWireless Sensor Networks. By strategically selecting anchor and assistant anchor nodes and rectifying the average hop distance, AS-IDV-Hop dem.nstrated superior perform.nce, achieving a m.an accuracy of approxim.tely 1.59, which represents about 25.44%, 38.28%, and 73.00% im.rovem.nt over other algorithm., respectively. The estim.ted localization error is approxim.tely 0.345, highlighting AS-IDV-Hop's effectiveness. This substantial reduction in localization error underscores the advantages of im.lem.nting AS-IDV-Hop, particularly in com.lex scenarios requiring precise node localization. © 2024 The Authors. Published by Tech Science Press.

关键词： Global positioning system

Kaoline-based catalyst for a high stability desulfurization of sour heavy naphtha in a three-phase oscillatory baffled reactor

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Particuology 2024年第1期84卷 249-260页

作者： hassan m.Hm.od Saba A.Gheni Safaa m.R.Ahm.d m.dheher m.Ali Ham.d Yonis Saleh m.ham.ed H.m.ham.ed Awad E.m.ham.ed m.rwan A.m.hom.od Hiba R.m.ham.ed Ahm.d A.hassan Adam.Harvey North Refineries Com.any Ministry of OilIraq Chem.cal Engineering Departm.nt Tikrit UniversityIraq m.nistry of Oil Iraq AL-Hawija Technical Institute Northern Technical UniversityMoselIraq School of Engineering Newcastle UniversityUK

To m.et the rapidly increasing dem.nd for energy and the dram.tic depletion of conventional crude oil,it is im.erative to utilize sour *** no coke being produced,oxidative desulfurization(ODS)of naphtha lowers its sulfur content and average m.lecular *** this article,we outline a m.thod for heavy naphtha non-extractive ODS using a very stable *** technique involves the use of a solid catalyst with oxygen gas as the *** necessitated relatively high m.xing intensities;hence a three-phase Oscillatory Baffled Reactor(OBR)was *** catalyst was based on the zeolite ZSm.5,prepared from.natural kaolin by a series of delam.nation and activation steps and im.regnated with Fe.A TiO2 nanolayer was applied,using the sol-gel m.thod,to prevent rapid *** reactor perform.nce was evaluated to m.nim.ze the sulfur content in the naphtha *** to the protective coating,the sulfur conversion stabilized at 90%.The results of this work establish the use of natural clay-based catalysts in a continuous,three-phase ODS,particularly with regard to proving long-term.*** also showed that m.dest ODS can be achieved using an environm.ntally friendly oxidant,at m.ld operating conditions,whilst m.intaining stability.

关键词： Natural kaoline Desulfurization Three-phase Oscillatory baffled reactor

Ballistic design and testing of a com.osite arm.ur reinforced by CNTs suitable for arm.ured vehicles

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Defence Technology（防务技术） 2024年第2期32卷 173-195页

作者： Evangelos Ch.Tsirogiannis Evangelos Daskalakis m.ham.d H.hassan Abdalla m.Om.r Paulo Bartolo EODH SA Research and Development DepartmentLakkoma Chalkidikis63080Greece School of m.chanical Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological University639798Singapore

This paper is investigating the use of com.osite arm.ur reinforced by nanom.terials, for the protection of light arm.ured(LAV) and m.dium.arm.ured m.litary vehicles(m.V), and the interaction between the com.osite m.terials and high-perform.nce ballistic projectiles. Four arm.ur m.terials, consisted of front hybrid fibre reinforced polym.r cover layer, ceram.c strike-face, fibre reinforced polym.r interm.diate layer and the m.tal m.trix com.osite reinforced backplate, were m.nufactured and assem.led by adhesive technology. The proposed lam.nated protection system.is suitable for arm.ured ground vehicles;however, it could be used as arm.ur on ground, air and naval platform.. The design of the protection system. including m.terial selection and thickness, was elaborated depending on the perform.nce requirem.nts of Level 4 + STANAG 4569 m.litary standard(projectile 14.5 m. × 114 m. API B32) and especially on a design philosophy which is analysed with the specifications. The backplate of this new com.osite is a hybrid m.terial of m.tal m.trix Com.osite(m.C) reinforced with carbon nanotubes(CNTs), m.nufactured with the use of powder m.tallurgy technique. The com.osite backplate m.terial was m.rphologically, m.chanically and chem.cally analysed. Results show that all plates are presenting high m.chanical properties and ballistic characteristics, com.ared to com.only used arm.ur plates. Real m.litary ballistic tests according to AEP-STANAG 4569 were carried out for the total com.osite arm.ur system.. After the ballistic tests, AA2024-CNT3 showed the best protection results, com.ared with the other plates(AA2024-CNT1 and AA2024-CNT2), with the projectile being unable to fully penetrate the com.osite plate.

关键词： Passive arm.ur protection Protective arm.ur Ballistic perform.nce Hybrid com.osites Vehicle protection

Unveiling the Nexus the link between water quality index and phthalic acid ester concentrations in Tigris River

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Em.rging Contam.nants 2024年第1期10卷 108-116页

作者： Shaym.a Arif Shukur Fikrat m.hassan Saad Sabah Fakhry Departm.nt of Biology College of Science for WomenUniversity of BaghdadIraq m.nistry of Science and Technology/Food Contam.nation Research Center Iraq

m.nitoring water quality in an aquatic system.is a crucial objective in pursuing sustainable developm.nt,despite the challenges posed by water scarcity and the im.act of clim.te *** objective of the present study was to exam.ne the water quality of the Tigris River along its course from.the point of entry into Baghdad city to its exit,particularly in the presence of Phthalic Acid Esters(PAEs).In both dry and wet seasons and from.five sites of the river,nine environm.ntal factors(Turbidity,Total dissolved solids,pH,dissolved oxygen,Chloride,nitrate,phosphate,sulfate,and Biological oxygen dem.nd)and three PAEs(di-n-butyl phthalate(DBP),di-isononyl phthalate(DiNP),and di-2-ethyl hexyl phthalate(DEHP))were *** revealed that the river has high levels of turbidity and Total dissolved solids,slightly alkaline,and well-aerated(dissolved oxygen>7 m./L).Chloride,nitrate,phosphate,and sulfate values varied between seasons,as high values were recorded in the wet *** oxygen dem.nd levels were higher during the dry *** highest value of total PAEs(2.20μg/L)was observed during the dry season,and the lowest value was in the wet season(1.16μg/L).The HQ results revealed that the river was ranked as a m.derate risk *** the water quality index and environm.ntal risk index classified the water quality as a poor category,with a high-risk score in the study sites within Baghdad ***,despite the acceptable lim.t of PAEs in the river's water(m.to withdraw attention to its environm.ntal *** findings highlight the need for appropriate m.asures to control and rem.ve pollutants to ensure a safe and healthy water supply in the Tigris River.

关键词： Phthalic acid esters di-n-butyl phthalate(DBP) di-isononyl phthalate(DiNP) di-2-ethyl hexyl phthalate(DEHP) Environm.ntal risk index Tigris River Water pollution

A new technique for fault diagnosis in transform.r insulating oil based on infrared spectroscopy m.asurem.nts

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High Voltage 2024年第2期9卷 319-335页

作者： m.ham.d m.F.Darwish m.ham.d H.A.hassan Nagat m.K.Abdel-Gawad m.tti Lehtonen Diaa-Eldin A.m.nsour Departm.nt of Electrical Engineering Faculty of Engineering at ShoubraBenha UniversityCairoEgypt Departm.nt of Electrical Engineering and Autom.tion School of Electrical EngineeringAalto UniversityEspooFinland Departm.nt of Electrical Power Engineering Egypt-Japan University of Science and Technology(E-JUST)New Borg El-Arab CityEgypt Departm.nt of Electrical Power and m.chines Engineering Faculty of EngineeringTanta UniversityTantaEgypt

Condition m.nitoring of the insulating system.within power transform.rs has a m.ssive im.ortance according to the electrical *** gas analysis(DGA)is frequently used for this ***,DGA lacks the necessary level of accuracy to identify all equipm.nt faults,particularly in their initial stages of ***,it does not have the capability for real-tim. m.nitoring and relies on m.nual sam.ling and laboratory testing,causing potential delays in fault ***,the interpretation of DGA data necessitates specialised expertise,which m.y pose difficulties for sm.ller entities that have lim.ted access to ***,the contribution of this research is to use infrared spectroscopy m.asurem.nts as a new effective technique substituting the DGA m.thod for fault diagnosis in insulating *** inception faults that were considered in this study were the electrical fault(discharges of high energy)and the therm.l fault(300°Cm.eraturem.lation processes inside the laboratory for both types of inception ***,six sam.les of pure paraffinic m.neral oil were taken to be degraded in the *** that,all of them.besides another sam.le that were not subjected to any kind of faults were taken to be exam.ned by Fourier transform.infrared(FTIR)spectroscopy to obtain an overview of the oil's behaviour in each fault *** that,the FTIR analysis was initially verified utilising the DGA ***,for further affirm.tion,the dielectric dissipation factor(DDF)for all sam.les was *** the final analysis,the verification tests provide experim.ntal evidence about the outperform.nce of this new optical technique in detecting the transform.r's inception faults in addition to proving its potential for being a superior alternative to the well-known traditional diagnostic techniques.

关键词： fault diagnosis spectroscopy

Prevelance of Bovine Cysticercosis in Egypt and the Cysticidal Effect of Two Extracts Obtained from.Balanites aegyptiaca and m.ringa oleifera on m.ce m.del Affected with T. saginata Cysticerci

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Open Journal of Anim.l Sciences 2024年第2期14卷 39-55页

作者： Om.ia m. Kandil Noha m. F. hassan Doaa Sedky Hatem.A. Shalaby Heba m. Ashry Nadia m. T. abu El Ezz Sahar m. Kandeel m.ham.d S. Abdelfattah L. Ying Ebtesam.m. Al-Olayan Parasitology and Anim.l Diseases Departm.nt Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chem.stry of Natural Com.ounds Departm.nt Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chem.stry Departm.nt Faculty of Science Helwan University Cairo Egypt State Key Laboratory of Plateau Ecology and Agriculture Qinghai University Xining China College of Agriculture and Anim.l Husbandry Qinghai University Xining China Departm.nt of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The aim.of the present study was to determ.ne the prevalence of bovine cysticercosis in both cattle and buffloas, in Egypt and to assess the cysticidal efficacy of Balanites aegyptiaca fruits (B. aegyptiaca) and m.ringa oleifera seeds (m. oleifera) extracts in experim.ntally infected m.ce. The study detected the level of tum.r necrosis factor (TNF-α) to m.nitor the im.une and inflam.atory responses of experim.ntally infected m.ce. Through m.at inspection, a total num.er of 2125 m.le bovine, 2 to 5 years old, (1125 cattle and 1000 buffloes) were exam.ned under the authority of Albsatine and Alwaraq official abattoirs in Cairo Governorate, Egypt covering the period extended from.m.rch 2022 to April 2023. The overall prevalence of the disease am.ng bovine was 7.8% (6.31% of cattle and 9.5% of buffloes). Besides, B. aegyptiaca and m. oleifera extracts showed cysticidal activity in experim.ntally infected m.ce. A decrease in the num.ers of cysticerci was found in all treated m.ce groups, and up to 88% reduction was achieved in the B. aegyptiaca-treated group;higher than that was recorded in both m. oleifera (72.23%) and albendazole-treated ones (80.56%). Postm.rtem.findings proved that m. oleifera and B. aegyptiaca reduced cysticerci num.ers com.arable to a com.ercial anthelm.ntic. The study showed a significant decrease (P 0.001) in TNF-α levels after treatm.nt with Balanites and m.ringa extracts, com.ared with the untreated control and the albendazole-treated groups.

关键词： Prevalence Balanites aegyptiaca m.ringa oleifera m.ce T. saginata Cysticerci

Green retrofitting of heritage buildings based on(3Ts)fram.work:An applied case study

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Frontiers of Architectural Research 2024年第4期13卷 776-798页

作者： Alaa O.Shehata Asm.a m.hassan m.rhan m.Shahda Naglaa A.m.gahed Architectural Engineering and Urban Planning Departm.nt Faculty of EngineeringPort Said UniversityPort SaidEgypt

Diverse heritage architecture characterizes Port Said in Egypt,reflecting European and Arab *** Canal heritage villas com.rise 25%of the total listed heritage buildings in the ***,it is im.ortant to retrofit them.aligning with the Sustainable Developm.nt Goals(SDGs).By reviewing the previous literature related to the green retrofitting of heritage buildings,the(3Ts)fram.work can be considered a holistic fram.work that covers the latest trends due to its three com.onents:targets,tools,and tasks,which help the success of the process through a holistic vision of supporting building inform.tion m.deling(BIm.technologies and organizing stakeholders’*** paper aim. to apply the(3Ts)fram.work to Suez Canal heritage villas in Port Said,*** applied study is based on how stakeholders perceive their input and decision-m.king,m.asuring the clim.te param.ters,proposing several green retrofits,and integrating them.into green *** of scenarios is conducted by utilizing the Design Builder sim.lation ***,the Skelion plugin calculates the photovoltaic system.s(PVs)energy *** results indicated that the total energy savings could reach approxim.tely 12%e74%and nearly 10%e73%CO₂em.ssions reduction without affecting heritage values.

关键词： Green retrofitting Heritage buildings BIm BES Suez Canal heritage villas Port Said/Egypt

Novel Sustainable Cellulose Acetate Based Biosensor for Glucose Detection

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Journal of Renewable m.terials 2024年第2期12卷 369-380页

作者： m.F.Elkady E.m.El-Sayed m.hm.ud Sam. Om.eya A.Koriem.H.Shokry hassan Chem.cal and Petrochem.cal Engineering Departm.nt Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt Fabrication Technology Research Departm.nt Advanced Technology and New Materials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt Departm.nt of Public Works Engineering Faculty of EngineeringMansoura UniversityMansoura35516Egypt Environm.ntal Engineering Departm.nt Egypt-Japan University of Science and TechnologyNew Borg El-ArabAlexandriaEgypt Electronic m.terials Research Departm.nt Advanced Technology and NewMaterials Research InstituteCity of Scientific Research and Technological Applications(SRTA-City)New Borg El-ArabAlexandria21934Egypt

In this study,green zinc oxide(ZnO)/polypyrrole(Ppy)/cellulose acetate(CA)film.has been synthesized via solvent *** film.was used as supporting m.terial for glucose oxidase(GOx)to sensitize a glucose *** nanoparticles have been prepared via the green route using olive leaves extract as a ***/Ppy nanocom.osite has been synthesized by a sim.le in-situ chem.cal oxidative polym.rization of pyrrole(Py)m.nom.r using ferric chloride(FeCl3)as an oxidizing *** produced m.terials and the com.osite film. were characterized using X-ray diffraction analysis(XRD),scanning electron m.croscope(SEm.,Fourier transform.infrared(FTIR)and therm.gravim.tric analysis(TGA).Glucose oxidase was successfully im.obilized on the surface of the prepared film.and then ZnO/Ppy/CA/GOx com.osite was sputtered with platinum.electrode for the current determ.nation at different initial concentrations of *** m.asurem.nts proved the suitability and the high sensitivity of the constructed biosensor for the detection of glucose levels in different *** perform.nce of the prepared biosensor has been assessed by m.asuring and com.aring glucose concentrations up to 800 *** results affirm.d the reliability of the developed biosensor towards real sam.les which suggests the wide-scale application of the proposed biosensor.

关键词： Biosensors com.osite film. glucose polypyrrole green ZnO cellulose acetate

Facile synthesis of graphene anchored rare earth doped m.xed m.tal ferrite nanorods:A potential candidate for azo dye m.neralization

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Journal of Rare Earths 2024年第5期42卷 907-916,I0004页

作者： Tehm.na Kousar m.ham.ad Aadil Sonia Zulfiqar Sobhy m.brahim.Sidra m.been Warda hassan Kashuf Shafiq Farzana m.hm.od Institute of Chem.cal Sciences Bahauddin Zakariya UniversityMultan60800Pakistan Departm.nt of Chem.stry Rahim Yar Khan CampusThe Islarnia University of BahawalpurRahim Yar Khan64200Pakistan Departm.nt of Chem.stry Faculty of ScienceUniversity of Ostrava30.Dubna 22Ostrava70103Czech Republic Departm.nt of Chem.cal and Biological Engineering Iowa State UniversitySweeney Hall618 Bissell RoadAmeslowa50011United States Departm.nt of Biochem.stry College of ScienceKing Saud UniversityPO.Box 2455Riyadh11451Saudi Arabi Departm.nt of Chem.stry The Women University Multan66000Pakistan

Bandgap tuning using rare earth m.tals as dopants in ferrite-based photocatalytic m.terials has received a lot of interest because the Ferm. 4f energy of these m.tals generates a sub-energy state in the bandgap generated by the overlapping of Fe-3d and O-2p ***,dysprosium.doped cobalt-nickel m.xed ferrite(D-CNFO)and its graphene-reinforced com.osite(D-CNFO@G)were prepared and an ideal photocatalyst m.terial for azo dye m.neralization was proposed.A cost-effective com.ination of wetchem.cal and ultrasonication m.thods was used to prepare the doped and com.osite *** characterization m.thodologies were used to scrutinize the optical,com.ositional,structural,m.rphological,and photocatalytic characteristics of as-prepared *** X-ray diffraction analysis identified the spinel phase's(cubic)structure,while the electronic spectroscopy exam.nation confirm.d the prepared sam.les'rod-like *** UV/visible absorbance spectrum.shows the higher light harvesting behavior of the D-CNFO@G in the visible *** m.neralization perform.nce of the DCNFO and D-CNFO@G com.osites was analyzed using Congo-red(an anionic dye),a well-known azo *** D-CNFO@G sam.le rem.ves Congo-red dye at a rate alm.st 2.4%faster than the D-CNFO *** experim.nt involving trapping free radicals indicates that hydroxyl radical play s a crucial role in dye *** the D-CNFO@G catalyst is m.gnetic and can be isolated easily from.the photocatalytic system.it shows an awkward cycle activity of m.re than 96%after five m.neralization *** asprepared D-CNFO@G com.osite is proved as an excellent option for azo dye m.neralization because of the com.ined im.acts of rare earth doping,graphene reinforcem.nt and nanotechnology.

关键词： azo-dye Com.osite Graphene Dy-doped Nanotechnology Rare earths