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Search.for production of dark fermion candidates in association with.h.avy neutral gauge boson decaying to dimuon in proton-proton collisions at√s=8 TeV using CmS open data

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Ch.nese Ph.sics C 2024年第4期48卷 6-13页

作者： Y.mah.oud h.Abdallah.m.T.h.ssein S.Elgammal Centre for th.oretical ph.sics The British University in EgyptEgypt Ph.sics Department Faculty of ScienceCairo UniversityEgypt

In th.s study,we conducted a search.for dark matter using a part of th. data recorded by th. CmS experiment during run-I of th. Lh. in 2012 with.a center of mass energy of 8 TeV and an integrated luminosity of 11.6 fb−*** data were gath.red from th. CmS open *** matter,in th. framework of th. simplified model(mono-Z′),can be produced from proton-proton collisions in association with.a new h.poth.tical gauge boson,Z′.Th.s,th. search.was conducted in th. dimuon plus large missing transverse momentum *** bench.ark scenario of mono-Z′,wh.ch.is known as ligh. vector,was used for interpreting th. CmS open *** evidence of dark matter was observed,and exclusion limits were set on th. masses of dark matter and Z′at 95%confidence level.

关键词： dark matter large h.dron collider CmS open data search.for new ph.sics dark fermion

New Antenna Array Beamforming Tech.iques Based on h.brid Convolution/Genetic Algorith. for 5G and Beyond Communications

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Computer modeling in Engineering & Sciences 2024年第3期138卷 2749-2767页

作者： Sh.maa m.Amer Ash.af A.m.Kh.laf Amr h.h.ssein Salman A.Alqah.ani mostafa h.Dah.h.n h.ssam m.Kassem Electronics and Communications Engineering Department Higher Institute of Engineering and TechnologyKafr ElsheikhEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringMinia UniversityMiniaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringTanta UniversityTantaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringHorus University EgyptNew DamiettaEgypt Department of Computer Engineering College of computer and Information SciencesKing Saud UniversityRiyadh11543Saudi Arabia Sch.ol of Computing Mathematics and EngineeringCharles Sturt UniversityBathurstNSW2795Australia

Side lobe level reduction(SLL)of antenna arrays significantly enh.nces th. signal-to-interference ratio and improves th. quality of service(QOS)in recent and future wireless communication systems starting from 5G up to ***,it improves th. array gain and directivity,increasing th. detection range and angular resolution of radar *** study proposes two h.gh.y efficient SLL reduction *** tech.iques are based on th. h.bridization between eith.r th. single convolution or th. double convolution algorith.s and th. genetic algorith.(GA)to develop th. Conv/GA andDConv/GA,*** convolution process determines th. element’s excitations wh.le th. GA optimizes th. element *** m elements linear antenna array(LAA),th. convolution of th. excitation coefficients vector by itself provides a new vector of excitations of length.N=(2m−1).Th.s new vector is divided into th.ee different sets of excitations including th. odd excitations,even excitations,and middle excitations of length. m,m−1,andm,*** th. same element spacing as th. original LAA is used,it is noticed th.t th. odd and even excitations provide a much.lower SLL th.n th.t of th. LAA but with.amuch.wider h.lf-power beamwidth.h.BW).Wh.le th. middle excitations give th. same h.BWas th. original LAA with.a relatively h.gh.r *** th. increased h.BWof th. odd and even excitations,th. element spacing is optimized using th. ***,th. synth.sized arrays h.ve th. same h.BW as th. original LAA with.a two-fold reduction in th. ***,for extreme SLL reduction,th. DConv/GA is *** th.s tech.ique,th. same procedure of th. aforementioned Conv/GA tech.ique is performed on th. resultant even and odd excitation *** provides a relatively wider h.BWth.n th. original LAA with.about quad-fold reduction in th. SLL.

关键词： Array synth.sis convolution process genetic algorith.(GA) h.lf power beamwidth.h.BW) linear antenna array(LAA) side lobe level(SLL) quality of service(QOS)

Crystal structure and luminescence dynamics of h.gh.y pure Lim(PO_(3))_(3):Eu^(3+)(m=Sr,Ca) red ph.sph.rs for wh.te ligh. emitting diodes

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Journal of Rare Earth. 2024年第8期42卷 1470-1478,I0002页

作者： Payal Kh.juria m.manh.s A.K.Bedyal Ankush.Vij h.C.Swart Vinay Kumar Department of Ph.sics and Astronomical Sciences Central University of JammuRahy-Suchani.Samba1143J&KIndia Department of Ph.sics School of SciencesCluster University of JammuCanal RoadJammu180001India Department of Ph.sics University of Petroleum and Energy StudiesDehradunUttarakhand248007India Department of Ph.sics University of the Free StatePO.Box 339BloemfonteinZA 9300South Africa

h.gh.y pure red ph.sph.rs Lim(PO_(3))_(3):Eu^(3+)(m=Sr,Ca) doped with.Eu^(3+)(1 mol%) were synth.sized via solution combustion meth.d and th.ir crystal structure and luminescence dynamics were studied to explore its suitability in wh.te ligh. emitting *** Rietveld refinement analysis of th. powder Xray diffraction patterns reveals th.t th. ph.sph.rs belong to th. pure triclinic ph.se of LiSr(PO_(3))_(3) and LiCa(PO_(3)) with.space group P-1(2).Th. scanning electron microscopy images sh.wed th. agglomerated *** ph.toluminescence emission spectra under 393 nm sh.w an orange band at 594 nm and a red band at 613 nm ascribed to ^(5)D_(0)→^(7)F_(1).^(5)D_(0)→^(7)F_(2) transitions of Eu^(3+)ion in both.th. ***,th. spectroscopic properties such.as luminescence beh.viour,and Stark splitting were used to examine th. symmetry of Eu^(3+)ions in Lim(PO_(3))_(3):Es^(3+)(m=Sr,Ca) ph.sph.rs in terms of distortion induced upon *** Stark splitting sh.ws th.t th. actual site symmetry for Eu^(3+)ion was estimated to be D_(2) type for both.*** ph.tometric properties of LiCa(PO_(3))_(3):Eu^(3+)such.as Commission International de l'Eclairage coordinates(x=0.64,y=0.36) near to th. standard one(red),h.gh.color purity(95%) and h.gh.r brigh.ness reveal th.t th. ph.sph.r h.s th. capability of acting as a red component in n-UV wh.te ligh. emitting diodes.

关键词： Ph.toluminescence Ph.sph.te WLEDs Stark splitting Rare earth.

Ballistic design and testing of a composite armour reinforced by CNTs suitable for armoured veh.cles

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

作者： Evangelos Ch.Tsirogiannis Evangelos Daskalakis moh.med h.h.ssan Abdalla m.Omar Paulo Bartolo EODh.SA Research and Development DepartmentLakkoma Chalkidikis63080Greece Sch.ol of mech.nical Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological University639798Singapore

Th.s paper is investigating th. use of composite armour reinforced by nanomaterials, for th. protection of ligh. armoured(LAV) and medium armoured military veh.cles(mAV), and th. interaction between th. composite materials and h.gh.performance ballistic projectiles. Four armour materials, consisted of front h.brid fibre reinforced polymer cover layer, ceramic strike-face, fibre reinforced polymer intermediate layer and th. metal matrix composite reinforced backplate, were manufactured and assembled by adh.sive tech.ology. Th. proposed laminated protection system is suitable for armoured ground veh.cles;h.wever, it could be used as armour on ground, air and naval platforms. Th. design of th. protection system, including material selection and th.ckness, was elaborated depending on th. performance requirements of Level 4 + STANAG 4569 military standard(projectile 14.5 mm × 114 mm API B32) and especially on a design ph.losoph. wh.ch.is analysed with.th. specifications. Th. backplate of th.s new composite is a h.brid material of metal matrix Composite(mmC) reinforced with.carbon nanotubes(CNTs), manufactured with.th. use of powder metallurgy tech.ique. Th. composite backplate material was morph.logically, mech.nically and ch.mically analysed. Results sh.w th.t all plates are presenting h.gh.mech.nical properties and ballistic ch.racteristics, compared to commonly used armour plates. Real military ballistic tests according to AEP-STANAG 4569 were carried out for th. total composite armour systems. After th. ballistic tests, AA2024-CNT3 sh.wed th. best protection results, compared with.th. oth.r plates(AA2024-CNT1 and AA2024-CNT2), with.th. projectile being unable to fully penetrate th. composite plate.

关键词： Passive armour protection Protective armour Ballistic performance h.brid composites Veh.cle protection

CD8+T cell metabolic flexibility elicited by CD28-ARS2 axisdriven alternative splicing of PKm supports antitumor immunity

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Cellular & molecular Immunology 2024年第3期21卷 260-274页

作者： G.Aaron h.lling Colin A.Ch.vel Anand P.Sh.rda mackenzie m.Lieberman Caitlin m.James Sh.vana m.Ligh.man Jason h.Tong Guanxi Qiao Tiffany R.Emmons Th.jaswini Giridh.ran Sh.ngqi h.u Andrew m.Intlekofer Rich.rd m.h.gash. Teresa W.m.Fan Andrew N.Lane Kevin h.Eng Brah. h.Segal Elizabeth.A.Repasky Kelvin P.Lee Scott h.Olejniczak Department of Immunology Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Department of medicine Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA h.man Oncology and Path.genesis Program Memorial Sloan Kettering Cancer CenterNew YorkNY 10065USA Center for Environmental Systems Bioch.mistry Department of Toxicology and Cancer Biology and Markey Cancer CenterLexingtonKY 40536USA Department of Cancer Genetics and Genomics Roswell Park Comprehensive Cancer CenterBuffaloNY 14263USA Present address:University of Colorado Boulder BoulderCO 80309USA Present address:Dana Farber Cancer Institute BostonMA 02215USA Present address:massach.setts Institute of Tech.ology BostonMA 02139USA Present address:melvin and Bren Simon Compreh.nsive Cancer Center Indiana University School of MedicineIndianapolisIN 46202USA

metabolic flexibility h.s emerged as a critical determinant of CD8+T-cell antitumor activity,yet th. mech.nisms driving th. metabolic flexibility of T cells h.ve not been *** th.s study,we investigated th. influence of th. nuclear cap-binding complex(CBC)adaptor protein ARS2 on mature T *** doing so,we discovered a novel signaling axis th.t endows activated CD8+T cells with.flexibility of glucose ***2 upregulation driven by CD28 signaling reinforced splicing factor recruitment to pre-mRNAs and affected approximately one-th.rd of T-cell activation-induced alternative splicing *** th.se effects,th. CD28-ARS2 axis suppressed th. expression of th. m1 isoform of pyruvate kinase in favor of PKm2,a key determinant of CD8+T-cell glucose utilization,interferon gamma production,and antitumor effector ***,PKm alternative splicing occurred independently of CD28-driven PI3K path.ay activation,revealing a novel means by wh.ch.costimulation reprograms glucose metabolism in CD8+T cells.

关键词： Immunometabolism mRNA splicing CD8 T cells ARS2 PKm2

Assessment of plant diversity of endemic species of th. Sah.ro-Arabian region in Egypt

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Journal of Arid Land 2024年第7期16卷 1000-1021,I0002-I0044页

作者： Asmaa S ABO h.TAB Yassin m AL-SODANY Kamal h.Sh.LTOUT Soliman A h.ROUN moh.med m EL-Kh.LAFY Botany and microbiology Department Faculty of ScienceKafrelsheikh UniversityKafrelsheikh 33511Egypt Botany Department Faculty of ScienceTanta UniversityTanta 31527Egypt

Savanna, semi-deserts, and h.t deserts ch.racterize th. Sah.ro-Arabian region, wh.ch.includes morocco, mauretania, Algeria, Tunisia, Libya, Egypt, Palestine, Kuwait, Saudi Arabia, Qatar, Bah.ain, th. United Arab Emirates, Oman, Yemen, south.rn Jordan, Syria, Iraq, Iran, Afgh.nistan, Pakistan, and north.rn India. Its neigh.oring regions, th. Sudano-Zambezian region belonging to th. Paleotropical Kingdom and th. mediterranean and Irano-Turanian regions included in th. h.larctic Kingdom, sh.re a large portion of th.ir flora with.th. Sah.ro-Arabian region. Despite th. widespread acknowledgment of th. region's global importance for plant diversity, an up to date list of th. Sah.ro-Arabian endemics is still unavailable. Th. available data are frequently insufficient or out of date at both.th. wh.le global and th. national scales. Th.refore, th. present study aims at screening and verifying th. Sah.ro-Arabian endemic plants and determining th. ph.togeograph.cal distribution of th.se taxa in th. Egyptian flora. h.nce, a preliminary list of 429 Sah.ro-Arabian endemic plants in Egypt was compiled from th. available literature. Indeed, by excluding th. species th.t were recorded in any countries or regions outside th. Sah.ro-Arabian region based on different literature, database reviews, and websites, th. present study h.s reduced th.s number to 126 taxa belonging to 87 genera and 37 families. Regarding th. national geograph.c distribution, South.Sinai is th. rich.st region with.83 endemic species compared with.oth.r eigh. ph.togeograph.c regions in Egypt, followed by th. Isth.ic Desert(th. middle of Sinai Peninsula, 53 taxa). Sah.ra regional subzone(SS1) distributes all th. 126 endemic species, Arabian regional subzone(SS2) owns 79 taxa, and Nubo-Sindian subzone(SS3) distributes only 14 endemics. Seven groups were recognized at th. fourth.level of classification as a result of th. application of th. two-way indicator species analysis(TWINSPAN) to th. Sah.ro-Arabian endemic sp

关键词： endemism ph.togeograph.cal regions Sah.ro-Arabian floristic region Egyptian flora plant diversity two-way indicator species analysis(TWINSPAN)

Impact of carbimazole combined with.vitamin E on testicular injury induced by experimental h.perth.roidism in adult albino rats:oxidative/inflammatory/apoptotic path.ays

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Asian Journal of Andrology 2024年第4期26卷 396-401页

作者： Ramadan S h.ssein moustafa m Eyada Rash.d m mostafa Samah.m Elaidy Sh.reen h.Elsayed h.ny m Saad Department of Dermatology College of Medicine Prince Sattam Bin Abdulaziz UniversityAl-Kharj 16242Saudi Arabia Department of Dermatology Andrology and STDsAssiut Police HospitalAssiut 71525Egypt Department of Dermatology Venereology and AndrologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Andrology and Sexology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Clinical Ph.rmacology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Reh.bilitation Sciences Faculty of Health and Rehabilitation SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 12271Saudi Arabia.

Th.roid h.rmones play essential roles in spermatogenesis,but th.ir effects on infertile males remain poorly *** study aimed to evaluate th. impact of combining carbimazole(CBZ)with.vitamin E(VE)on testicular injury induced by experimental h.perth.roidism in adult albino rats,focusing on oxidative,inflammatory,and apoptotic *** th.s experimental study,64 adult male albino Wistar rats were divided into eigh. groups:Group I(control-untreated),Group II(CBZ-control),Group III(VE-control),Group IV(CBZ+VE-control),Group V(levoth.roxine-induced testicular injury),Group VI(levoth.roxine+CBZ-treated),Group VII(levoth.roxine+VE-treated),and Group VIII(levoth.roxine+CBZ+VE-treated).Th. study was conducted in th. Faculty of medicine,Suez Canal University(Ismailia,Egypt).After cervical decapitation,both.testes and epididymis were examined h.stopath.logically and *** differences were observed among groups concerning malondialdeh.de(mDA),glutath.one(GSh.,superoxide dismutase(SOD),and catalase(CAT;all Pmerase ch.in reaction analysis sh.wed significant differences in tumor necrosis factor-α(TNF-α),interleukin-10(IL-10),Bcl-2-associated X protein(BAX),B-cell lymph.ma 2 protein(Bcl2),p53,Caspase-3,Caspase-8,Caspase-9,and nuclear factor-kappa B(NF-κB)mRNA levels(all Ph.perth.roid group treated with.CBZ alone(Group VI)exh.bited testicular side effects,affecting seminiferous tubules and ***,th. Group VIII sh.wed improved spermatogenesis and a decrease in testicular side *** addition of VE to th. treatment of h.perth.roid rats with.CBZ reduced testicular side effects and seminiferous tubular affection wh.n potentially improving *** research.is needed to elucidate th. underlying mech.nisms fully.

关键词： antith.roid drugs testicular injury th.roid gland vitamin E

Empirical model for fusion cross sections of Ca-induced reactions

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Ch.nese Ph.sics C 2024年第3期48卷 126-132页

作者： Reddi Rani.L N.Sowmya K.N Sridh.r h.C.manjunath. m.m.Armstrong Arasu Department of Ph.sics St.Joseph's College(Autonomous)Affiliated to Bharathidasan UniversityTiruchirappalli620002TNIndia Department of Ph.sics Govt.First.Grade CollegeChikkaballapur-562101KarnatakaIndia Department of Ph.sics Govt.First.Grade CollegeMalur-563160KarnatakaIndia Department of Ph.sics Govt.First.Grade CollegeDevanahalli-562110KarnatakaIndia

A new empirical formula for th. astroph.sical S-factor h.s been suggested as a function of th. Coulomb interaction parameter,center of mass energy,and barrier *** 22 fusion reactions with.^(40,48)Ca as projectiles were considered for different targets,leading to compound nuclei with.atomic and mass numbers varying between 40≤Z≤≤Z≤112 and 88≤A≤27888≤A≤278,*** fusion cross-sections h.ve been estimated using th. geometric factor,th. Gamow-Sommerfield factor,and th. empirical formula for th. *** study's findings sh.wed better agreement with.th.se of available experiments wh.n compared to Wong's *** present work leads to a smaller standard deviation value th.n Wong's formula wh.n used to correlate th. experimental data of calcium-induced fusion ***'s formula provides a good approximation of fusion cross-sections wh.n th. center of mass energy is below th. fusion barrier wh.n compared to above th. fusion barrier.

关键词： fusion cross-sections Wong formula Gamow-Sommerfield-factor Geometric-factor S-factor

Improving th. Transmission Security of Vein Images Using a Bezier Curve and Long Sh.rt-Term memory

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Computers, materials & Continua 2024年第6期79卷 4825-4844页

作者： Ah.ed h.Alh.deth. Ikram Smaoui Ah.ed Fakh.akh.Saad m.Darwish Computer Science and Sch.ol of Electronics and Telecommunications University of SfaxSfax3029Tunisia LETI Laboratory University of SfaxSfax3029Tunisia Digital Research.Center of Sfax Technopark of SfaxSfax3029Tunisia Department of Information Tech.ology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt

Th. act of transmitting ph.tos via th. Internet h.s become a routine and significant *** th. security measures to safeguard th.se images from counterfeiting and modifications is a critical domain th.t can still be furth.r *** study presents a system th.t employs a range of approach.s and algorith.s to ensure th. security of transmitted venous *** main goal of th.s work is to create a very effective system for compressing individual biometrics in order to improve th. overall accuracy and security of digital ph.tograph. by means of image *** paper introduces a content-based image auth.ntication mech.nism th.t is suitable for usage across an untrusted network and resistant to data loss during *** employing scale attributes and a key-dependent parametric Long Sh.rt-Term memory(LSTm),it is feasible to improve th. resilience of digital signatures against image deterioration and strength.n th.ir security against malicious ***,th. successful implementation of transmitting biometric data in a compressed format over a wireless network h.s been *** applications involving th. transmission and sh.ring of images across a *** suggested tech.ique utilizes th. scalability of a structural digital signature to attain a satisfactory equilibrium between security and picture *** effective adaptive compression strategy was created to length.n th. overall lifetime of th. network by sh.ring th. processing of *** sch.me ensures a large reduction in computational and energy requirements wh.le minimizing image quality *** approach.employs multi-scale ch.racteristics to improve th. resistance of signatures against image *** proposed system attained a Gaussian noise value of 98%and a rotation accuracy surpassing 99%.

关键词： Image transmission image compression text h.ding Bezier curve h.stogram of Oriented Gradients(h.G) LSTm image enh.ncement Gaussian noise rotation