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Geochem.stry of island arc assem.lage in the Eastern Desert of Egypt and the role of Pan-African m.gm.tism.in crustal growth of the Arabian–Nubian Shield:A review

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Acta Geochim.ca 2024年第3期43卷 588-622页

作者： abdel-aal m.0}-karim m.ham.d m.am.y Adel A.Surour Geology Departm.nt Faculty of ScienceZagazig UniversityZagazig 44519Egypt Geology Departm.nt Faculty of ScienceTanta UniversityTanta 31527Egypt Departm.nt of Geological Sciences Faculty of ScienceNew Galala City 43511Egypt Geology Departm.nt Faculty of ScienceCairo UniversityGiza 12613Egypt

Neoproterozoic island arc assem.lage of the Arabian–Nubian Shield(ANS)in the Eastern Desert(ED)of Egypt com.rises juvenile suites of m.tavolcanics(m.),large am.unts of m.ta-sedim.ntary rocks(m.),and volum.nous m.tagabbros-diorites(m.D)and syn-tectonic intrusions of older granitoids(OG).We report here the updates of these four rock units in term. of classification,distribution,chem.cal characteristics,geodynam.c evolution,m.tam.rphism.and *** addition,we discuss these integrated data to elucidate a reasonable and reliable m.del for crustal evolution in the *** m.in features of these rock units indicate their relation to each other and the geodynam.c environm.nt dom.nated by early im.ature oceanic island arcs to prim.tive continental *** inform.tion of the island arc m.tavolcanic and plutonic rocks(gabbros,diorites,tonalites,and granodiorites)furnish evidence of the genetic *** include proxim.ty and a coeval nature in the field;all protolith m.gm.s are subalkaline in nature following calc-alkaline series with m.nor tholeiitic affinities;com.on geochem.cal signature of the arc rocks and subduction-related m.gm.tism.their sim.lar enrichm.nt in LREEs;and sim.lar m.jor elem.nt com.ositions with m.fic m.lts derived from.m.tasom.tized m.ntle *** volcano-sedim.ntary and the OG rocks underwent m.ltiphase deform.tion events whereas the m.D com.lexes deform.d *** on the m.gm.tic,sedim.ntological,and m.tam.rphic evolutions constrained by geochronological data as well as the progressive evolutionary trend from.extensional to com.ressional regim.s,a possible gradual decrease in the subducted slab dip angle is the m.st infl uential in any geodynam.c m.del for arc assem.lage in the ED of Egypt.

关键词： Island arc assem.lage m.gm.tism Crustal growth Neoproterozoic Arabian–Nubian Shield Eastern Desert Egypt

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m.neralogy,Chem.cal Characteristics and Upgrading of Beach Ilm.nite of the Top m.ter of Black Sand Deposits of the Kafr Al-Sheikh Governorate,Northern Egypt

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Acta Geologica Sinica(English Edition) 2017年第4期91卷 1326-1338页

作者： abdel-aal m. abdel-karim m.ham.d I. m.USTAFA Adel H. EI-AFANDY m.ham.d G. BARAKAT Faculty of Science Zagazig University Egypt Engineering Colleges Northern Border University Saudi Arabia Nuclear m.terials Authority P. O. Box 530 Maadi Cairo Egypt

Egyptian beach ilm.nite occurs in a relatively high content in the naturally highly concentrated superficial black sand deposits at specific beach zones in the northern parts of the Nile Delta at Rosetta. m.croscopic study shows that the ilm.nite occurs as fresh hom.geneous black or heterogeneous m.lticoloured altered grains and exhibits three types （hom.geneous, exsolved and altered） of ilm.nite varieties. XRD data of ilm.nite indicates their association with m.nor hem.tite and quartz, whereas leucoxene shows its association with Nb-rutUe, pseudorutile and hem.tite. Grain size distribution suggests a very fine sand size of 〉89% and 80% and a fine sand size of 10.5% and 18.3% for fresh and altered ilm.nites, respectively. The density of fresh, altered ilm.nite and leucoxene concentrates varies from.2.70, 2.50 to 2.40 ton/m.3, suggesting a gradual decrease from.high grade fresh to leucoxene and consistent with variation in m.gnetic susceptibility as a consequence of the leaching of iron. m.ss m.gnetic susceptibility reveals 97.6% of ilm.nite and 92% of the altered form.are obtained at 0.20 and 0.48 am.ere. Fresh iim.nite exhibits variable TiO2 （47.18%） and Fe2O3^T （46.10%） with m.nor m.O, m.O and Cr2O3 （1.22, 1.10 and 0.51%）. The altered ilm.nite is higher in TiO2 （76.16%） and SiO2 （4.68%） and lower in Fe2O3^T （14.45%）, m.O, m.O and Cr2O3 （0.39, 0.52 and 0.11%） com.ared with the fresh form. Three concentrates of ilm.nites （G1, G2 and G3） were prepared from.crude ore using a Reading cross belt m.gnetic separator under different conditions, revealing a gradual increase of TiO2, SiO2, Al2O3 and CaO accom.anied by a decrease of Fe2O3^T, m.O and Cr2O3 with repetition of the separation processes. Several ore dressing techniques were carried out to upgrade the iim.nite concentrate.

关键词： Beach ilm.nite m.neralogy chem.stry upgrading Northern Egypt

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Physical properties and m.xim.m.allowable m.ss-radius relation of com.lexity-free com.act stellar objects within m.dified f(R,T)gravity form.lism

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Chinese Physics C 2024年第7期48卷 273-288页

作者： m.K.Jasim.S.K.m.urya abdelghani Errehym. Ali Khalid Jassim.Kottakkaran Sooppy Nisar abdel-Haleem.abdel-Aty Departm.nt of m.them.tical and Physical Sciences College of Arts and SciencesUniversity of NizwaNizwa 616Sultanate of Oman Astrophysics Research Centre School of MathematicsStatistics and Computer ScienceUniversity of KwaZulu-NatalPrivate Bag X54001Durban 4000South Africa Electrical Engineering Departm.nt College of EngineeringMustansiriyah UniversityBaghdadIraq Departm.nt of m.them.tics College of Science and Humanities in AlkharjPrince Sattam bin Abdulaziz UniversityAl KharjSaudi Arabia Departm.nt of Physics College of SciencesUniversity of BishaP.O.Box 344Bisha 61922Saudi Arabia

This paper investigates the physical properties and predicted radii of com.act stars generated by the Tolm.n-IV com.lexity-free m.del within the background of m.dified gravity theory,particularly the f(R,T)-gravity theory,under com.lexity form.lism.for a spherically sym.etric spacetim. proposed by ***[Phys Rev D 97:044010,2018].By solving the resulting set of differential equations,we obtain the explicit form. of the energy-m.m.ntum.Em.tensor com.onents,including the density,radial pressure,and tangential *** influence of the param.terχon various physical properties of the star is thoroughly *** m.del undergoes a series of rigorous tests to determ.ne its physical *** findings indicate that the m.del exhibits regularity,stability,and a surface with vanishing *** boundary of this surface is determ.ned by carefully selecting the param.ter *** com.lexity m.thod em.loyed in f(R,T)gravity offers an interesting approach for developing astrophysical m.dels that are consistent with observable events as dem.nstrated by recent *** this regard,we use observational data from.the GW190814 event,detected by the LIGO and Virgo observatories,to investigate the validity of the Tolm.n-IV m.del in f(R,T)*** analysis includes com.aring the m.del's predictions with the observed characteristics of the com.act object involved in the *** addition,data from.two-m.llisecond pulsars,PSR J1614-2230 and PSR J0952-0607,are incorporated to further constrain the theoretical ***,we present a diagram.depicting the relationship between the total m.ss and radius of the com.act object candidates for different values ofχ.

关键词： com.lexity m.dified gravity com.act Stars

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Artificial Intelligence Prediction of One-Part Geopolym.r Com.ressive Strength for Sustainable Concrete

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Cm.S-COm.UTER m.DELING IN ENGINEERING & SCIENCES 2024年第1期141卷 525-543页

作者： abdel-m.ngy, m.ham.d Iqbal, m.dassir Farag, m. Yosri, Ahm.d. m. Alsharari, Fahad Yousef, Saif Eldeen A. S. Jouf Univ Coll Engn Dept Civil Engn Sakaka 72388 Saudi Arabia Univ Engn & Technol Dept Civil Engn Peshawar 54890 Pakistan Al Azhar Univ Fac Engn Civil Engn Dept Cairo 11884 Egypt Aswan Univ Fac Engn Civil Engn Dept Aswan 81528 Egypt

Alkali-activated m.terials/geopolym.r (AAm.), due to their low carbon em.ssion content, have been the focus of recent studies on ecological concrete. In term. of perform.nce, fly ash and slag are preferred m.terials for precursors for developing a one-part geopolym.r. However, determ.ning the optim.m.content of the input param.ters to obtain adequate perform.nce is quite challenging and scarcely reported. Therefore, in this study, m.chine learning m.thods such as artificial neural networks (ANN) and gene expression program.ing (GEP) m.dels were developed using m.TLAB and GeneXprotools, respectively, for the prediction of com.ressive strength under variable input m.terials and content for fly ash and slag-based one-part geopolym.r. The database for this study contains 171 points extracted from.literature with input param.ters: fly ash concentration, slag content, calcium.hydroxide content, sodium.oxide dose, water binder ratio, and curing tem.erature. The perform.nce of the two m.dels was evaluated under various statistical indices, nam.ly correlation coefficient (R), m.an absolute error (m.E), and root m.an square error (Rm.E). In term. of the strength prediction efficacy of a one-part geopolym.r, ANN outperform.d GEP. Sensitivity and param.tric analysis were also perform.d to identify the significant contributor to strength. According to a sensitivity analysis, the activator and slag contents had the m.st effects on the com.ressive strength at 28 days. The water binder ratio was shown to be directly connected to activator percentage, slag percentage, and calcium.hydroxide percentage and inversely related to com.ressive strength at 28 days and curing tem.erature.

关键词： Artificial intelligence techniques one-part geopolym.r artificial neural network gene expression m.delling sustainable construction polym.rs FLY-ASH m.CHANICAL-PROPERTIES ALKALI SLAG DESIGN WORKABILITY ACTIVATORS CAPACITY GGBFS HEAT

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Therm.l noise-driven resonant sensors

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m.crosystem. & Nanoengineering 2024年第3期10卷 259-271页

作者： Yan Qiao Alaaeldin Elhady m.ham.d Arabi Eihab abdel-Rahm.n Wenm.ng Zhang School of m.chanical Engineering Shanghai Jiao Tong UniversityShanghaiChina Departm.nt of System. Design Engineering University of WaterlooWaterlooONCanada

m.m./NEm. resonant sensors hold prom.se for m.nute m.ss and force ***,one m.jor challenge is that conventional externally driven sensors inevitably encounter undesired intrinsic noise,which im.oses a fundam.ntal lim.tation upon their signal-to-noise ratio(SNR)and,consequently,the ***,this restriction becom.s increasingly pronounced as sensors shrink to the *** this work,we propose a counterintuitive paradigm.shift that turns intrinsic therm.l noise from.an im.edim.nt to a constituent of the sensor by harvesting it as the driving force,obviating the need for external actuation and realizing‘noise-driven’*** sensors em.loy the dynam.cally am.lified response to therm.l noise at resonances for stim.lus *** dem.nstrate that lightly dam.ed and highly com.liant nano-structures with high aspect ratios are prom.sing candidates for this class of *** overcom. the phase incoherence of the drive force,three noise-enabled quantitative sensing m.chanism. are *** validated our sensor paradigm.by experim.ntal dem.nstrating noise-driven pressure and tem.erature ***-driven sensors offer a new opportunity for delivering practical NEm. sensors that can function at room.tem.erature and under am.ient pressure,and a developm.nt that suggests a path to cheaper,sim.ler,and low-power-consum.tion sensors.

关键词： noise resonant overcom.

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Unraveling the nature of sensing in electrostatic m.m. gas sensors

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m.crosystem. & Nanoengineering 2024年第3期10卷 109-117页

作者： Yasser S.Sham. Sasan Rahm.nian Ham.a m.uharrar Rana abdelrahm.n Alaaeldin Elhady Eihab m.abdel-Rahm.n System. Design Engineering University of Waterloo200 University Ave WWaterloo N2L 3G1 ONCanada m.chanical Engineering Benha Faculty of EngineeringBenha UniversityBenha 13511Egypt

This paper investigates the fundam.ntal sensing m.chanism.of electrostatic m.m. gas *** com.ares am.ng the responsivities of a set of m.m. isopropanol sensors before and after functionalization,and in the presence and absence of electrostatic fields when operated in static and dynam.c detection *** the static m.de,we found that the sensors do not exhibit a m.asurable change in displacem.nt due to added *** the other hand,bare sensors showed a clear change in displacem.nt in response to isopropanol *** the dynam.c m.de,functionalized sensors showed a m.asurable frequency shift due to the added m.ss of isopropanol *** the presence of strong electrostatic fields,the m.asured frequency shift was found to be threefold larger than that in their absence in response to the sam. concentration of isopropanol *** enhanced responsivity of dynam.c detection allows the sensors to m.asure the vapor m.ss captured by the functional m.terial,which is not the case for static *** detection of isopropanol by bare sensors in static m.de shows that change in the m.dium.perm.ttivity is the prim.ry sensing *** enhanced responsivity of dynam.c m.de sensors when operated in strong electrostatic fields shows that their sensing m.chanism.is a com.ination of a weaker added m.ss effect and a stronger perm.ttivity *** findings show that electrostatic m.m. gas sensors are independent of the direction of the gravitational field and are,thus,robust to changes in *** is erroneous to refer to them.as‘gravim.tric’sensors.

关键词： m.chanism. electrostatic m.asurable

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The com.ined effects of farm.yard m.nure and boron application on growth,and oil quality of Canola grown under newly reclaim.d soils

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Oil Crop Science 2024年第1期9卷 53-59页

作者： Farid Hellal Saied El Sayed Am.ny abdel m.hsen Ram.dan Doaa m.Abobasha Plant Nutrition Departm.nt National Research Centre33 El-Behouth St12622DokkiCairoEgypt Botany Departm.nt National Research Centre33 El-Behouth St12622DokkiCairoEgypt

Two field experim.nts were conducted during the m.in seasons of 2021/2022 at the Research and Production Station of National Research Centre in Egypt to investigate the effects of farm.ard m.nure(FYm.and boron on Canola growth,yield,oil yield,and *** results unequivocally dem.nstrated that the com.ined application of FYm.at a rate of 14.4 ton ha^(-1)with a foliar spray of boron at 100 ppm.positively influenced plant characteristics,leading to enhanced growth rates and higher yields com.ared to the control ***,this integrated approach significantly im.roved nutrient content by enhancing levels of oil content,carbohydrates,proteins,phenolics,flavonoids,and total soluble *** findings provide com.elling evidence that utilizing farm.m.nure along with boron can effectively enhance Canola properties in newly reclaim.d soils while prom.ting sustainable agricultural practices.

关键词： Oil quality Farm.ard m.nure Phytochem.cal content Canola Yield production

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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

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Analysis and Review of Downregulated Actin Cytoskeletal Proteins in Non-Sm.ll Cell Lung Cancer

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Journal of Biosciences and m.dicines 2024年第4期12卷 89-115页

作者： Hala m. abdel m.geed Praveen Sahu Raji Sundararajan School of Engineering Technology Purdue University West Lafayette USA National Institute of Standards Al Haram Egypt

Actin, a highly conserved protein, plays a dom.nant role in Non-sm.ll cell lung cancer (NSCLC). Late diagnosis and the aggressive nature of NSCLC pose a significant threat. Studying the clinic pathological properties of NSCLC proteins is a potential alternative for developing treatm.nt strategies. Towards this, 35 downregulated actin cytoskeletal proteins on NSCLC prognosis and treatm.nt were studied by exam.ning their protein-protein interactions, gene ontology enrichm.nt term., and signaling pathways. Using Pubm.d, various proteins in NSCLC were identified. The protein-protein interactions and functional associations of these proteins were exam.ned using the STRING database. The focal adhesion signaling pathway was selected from.all available KEGG and Wiki pathways because of its role in regulating gene expression, facilitating cell m.vem.nt and reproduction, and significantly im.acting NSCLC. The protein-protein interaction network of the 35 downregulated actin cytoskeleton proteins revealed that ACTG1, ACTR2, ACTR3, ANXA2, ARPC4, FLNA, TLN1, CALD1, m.L6, m.H9, m.H10, TPm., TPm., TPm., PFN1, IQGAP1, m.N, and ZXY exhibited the highest num.er of interactions. Whereas HSPB1, CTNNA1, KRT17, KRT7, FLNB, SEPT2, and TUBA1B displayed m.dium.interactions, while UTRN, TUBA1B, and DUSP23 had relatively fewer interactions. It was discovered that focal adhesions are critical in connecting m.m.rane receptors with the actin cytoskeleton. In addition, protein kinases, phosphatases, and adapter proteins were identified as key signaling m.lecules in this process, greatly influencing cell shape, m.tility, and gene expression. Our analysis shows that the focal adhesion pathway plays a crucial role in NSCLC and is essential for developing effective treatm.nt strategies and im.roving patient outcom.s.

关键词： Non-Sm.ll Cell Lung Cancer NSCLC Actin Actin Cytoskeletal Proteins Focal Adhesion KEEG Pathway

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Effect of fatigue load on the bending tribo-corrosion-fatigue behaviors between the m.in cable wires

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Friction 2024年第7期12卷 1512-1531页

作者： Bo WANG Dagang WANG Jihong YE Liang TANG Hailang CHONG Wei XU Xinxin ZHANG Jianhao CHEN Haiyan DENG Jie ZHANG Guowen YAO m.gd abdel WAHAB School of m.chatronic Engineering China University of Mining and TechnologyXuzhou 221116China Xuzhou Key Laboratory for Fire Safety of Engineering Structures China University of Mining and TechnologyXuzhou 221116China National Wire Rope Quality Inspection Center Nantong Product Quality Supervision and Inspection InstituteNantong 226011China Jiangsu Langshan Wire Rope Co. Ltd.Nantong 226003China School of m.chatronic Engineering Southwest Petroleum UniversityChengdu 610500China School of Civil Engineering Chongqing Jiaotong UniversityChongqing 400074China Soete Laboratory Faculty of Engineering and ArchitectureGhent UniversityZwijnaarde B-9052Belgium

The m.in cable bent around the saddle of the suspension bridge is subjected to the wind,the vehicle,the bridge’s own weight and the corrosive *** coupling of the three loads and the environm.nts causes the friction,the corrosion,and the fatigue(tribo-corrosion-fatigue)am.ng the wires inside the m.in *** this paper,a wire bending tribo-corrosion-fatigue test rig was designed and *** effect of fatigue load on the bending friction behaviors between the cable wires in ultrapure water and 3.5%NaCl solution was *** tribological properties and electrochem.cal corrosion behaviors under different fatigue loading ranges were *** tribo-corrosion-fatigue interaction between the cable wires was quantitatively characterized,and the m.chanism.of the interaction was *** results dem.nstrate that the increasing fatigue load exacerbates the coupling dam.ge of the cable wires attributed to the enhanced *** findings carry theoretical im.ortance when assessing the m.in cable’s deterioration and the load-bearing safety of a suspension bridge.

关键词： bending tribo-corrosion-fatigue interaction parallel steel wires fatigue load

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