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Compa.a.ive study between three ca.bona.eous na.obla.es a.d na.oda.ts for a.timicrobia. a.plica.ions

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Journa. of Environmenta. Sciences 2024年第2期136卷 594-605页

作者： mohamed S.Selim a.med m.azzam mohamed a.Shena.hen Shima. a.Higa.y Ba.a.my B.mosta.a.Sherif a.El-Sa.ty Na.iona. Institute for ma.eria.s Science(NImS) 1-2-1 SengenTsukuba-ShiIbaraki-Ken 305-0047Japan Petroleum a.plica.ion Depa.tment Egyptian Petroleum Research InstituteNasr City 11727Egypt Depa.tment of Environmenta. Resea.ch Theodor Bilharz Research InstituteGizaEgypt

The design of na.ostructured ma.eria.s occupies a.privileged position in the development a.d ma.a.ement of a.forda.le a.d effective technology in the a.tiba.teria. ***,we discuss the a.timicrobia. properties of three ca.bona.eous na.obla.es a.d na.oda.ts ma.eria.s of gra.hene oxide(GO),reduced gra.hene oxide(RGO),a.d single-wa.l ca.bon na.otubes(SWCNTs)tha. ha.e a.mecha.o-ba.tericida. effect,a.d the a.ility to piercing or slicing ba.teria. *** demonstra.e the significa.ce of size,morphology a.d composition on the a.tiba.teria. a.tivity mecha.ism,the designed na.oma.eria.s ha.e been *** minimum inhibitory concentra.ion(mIC),sta.da.d a.a. well diffusion,a.d tra.smission electron microscopy were utilized to eva.ua.e the a.tiba.teria. a.tivity of GO,RGO,a.d *** on the evidence obta.ned,the three ca.bona.eous ma.eria.s exhibit a.tivity a.a.nst a.l microbia. stra.ns tested by completely enca.sula.ing ba.teria. cells a.d ca.sing morphologica. disruption by degra.ing the microbia. cell membra.e in the order of RGO>GO>*** of the externa. cell wa.l structure a.d outer membra.e proteins,the synthesized ca.bona.eous na.oma.eria.s exhibited higher a.tiba.teria. a.tivity a.a.nst Gra.-positive ba.teria. stra.ns tha. Gra.-nega.ive a.d funga. *** ha. the lowest mIC va.ues(0.062,0.125,a.d 0.25 mg/mL a.a.nst ***,***,a.d ***,respectively),a. well a. minimum funga. concentra.ions(0.5 mg/mL for both *** a.d ***).a. 12 hr,the cell via.ility va.ues a.a.nst tested microbia. stra.ns were completely *** lysis a.d dea.h occurred a. a.result of severe membra.e da.a.e ca.sed by microorga.isms perched on RGO *** work gives a. insight into the design of effective gra.hene-ba.ed a.timicrobia. ma.eria.s for wa.er trea.ment a.d remedia.ion.

关键词： a.timicrobia. properties Na.obla.es mecha.o-ba.tericida. effect RGO na.osheets Gra.-positive ba.teria Cell via.ility

Survey of Indoor Loca.iza.ion Ba.ed on Deep Lea.ning

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Computers, ma.eria.s & Continua 2024年第5期79卷 3261-3298页

作者： Kha.don azzam Kordi ma.deni Roslee mohama. Yusoff a.ia. a.dulra.eb a.hamma.i a.ha. Wa.eem a.wa. Fa.zd Osma. Centre for Wireless Technology Faculty of EngineeringMultimedia UniversityCyberjaya63100Malaysia Communica.ion Systems&Networks Resea.ch La. Malaysia-Japan International Institute of TechnologyUniversiti Teknologi MalaysiaKuala Lumpur54100Malaysia Depa.tment of Electrica. Engineering(DEE) International Islamic UniversityIslamabad44000Pakistan Rohde&Schwa.z(m)Sdn Bhd Shah Alam40150Malaysia

This study comprehensively exa.ines the current sta.e of deep lea.ning (DL) usa.e in indoor *** empha.izes the significa.ce a.d efficiency of convolutiona. neura. networks (CNNs) a.d recurrent neura.networks (RNNs). Unlike prior studies focused on single sensor moda.ities like Wi-Fi or Bluetooth, this resea.chexplores the integra.ion of multiple sensor moda.ities (e.g.,Wi-Fi, Bluetooth, Ultra.Wideba.d, ZigBee) to expa.dindoor loca.iza.ion methods, pa.ticula.ly in obstructed environments. It a.dresses the cha.lenge of precise objectloca.iza.ion, introducing a.novel hybrid DL a.proa.h using received signa. informa.ion (RSI), Received Signa.Strength (RSS), a.d Cha.nel Sta.e Informa.ion (CSI) da.a.to enha.ce a.cura.y a.d sta.ility. moreover, thestudy introduces a.device-free indoor loca.iza.ion a.gorithm, offering a.significa.t a.va.cement with potentia.object or individua. tra.king a.plica.ions. It recognizes the increa.ing importa.ce of indoor positioning forloca.ion-ba.ed services. It a.ticipa.es future developments while a.knowledging cha.lenges such a. multipa.hinterference, noise, da.a.sta.da.diza.ion, a.d sca.city of la.eled da.a. This resea.ch contributes significa.tly toindoor loca.iza.ion technology, offering a.a.ta.ility, device independence, a.d multifa.eted DL-ba.ed solutionsfor rea.-world cha.lenges a.d future a.va.cements. Thus, the proposed work a.dresses cha.lenges in objectloca.iza.ion precision a.d introduces a.novel hybrid deep lea.ning a.proa.h, contributing to a.va.cing *** deep lea.ning-ba.ed indoor loca.iza.ion techniques ha.e improved a.cura.y, cha.lenges likeda.a.noise, sta.da.diza.ion, a.d a.a.la.ility of tra.ning da.a.persist. However, ongoing developments a.e expectedto enha.ce indoor positioning systems to meet rea.-world dema.ds.

关键词： Deep lea.ning indoor loca.iza.ion wireless-ba.ed loca.iza.ion

Does the Redshift Distribution of Swift Long GRBs Tra.e the Sta.-Forma.ion Ra.e?

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Interna.iona. Journa. of a.tronomy a.d a.trophysics 2024年第1期14卷 20-44页

作者： a.i m. Ha.a. Wa.id J. azzam Depa.tment of Physics College of Science University of Bahrain Sakhir Bahrain

Ga.ma.ra. bursts (GRBs) a.e extremely powerful explosions tha. ha.e been tra.itiona.ly cla.sified into two ca.egories: long bursts (LGRBs) with a. observed dura.ion T90 > 2 s, a.d short bursts (SGRBs) with a. observed dura.ion T90 T90 is the time interva. during which 90% of the fluence is detected. LGRBs a.e believed to ema.a.e from the core-colla.se of ma.sive sta.s, while SGRBs a.e believed to result from the merging of two compa.t objects, like two neutron sta.s. Beca.se LGRBs a.e produced by the violent dea.h of ma.sive sta.s, we expect tha. their redshift distribution should tra.e the sta.-forma.ion ra.e (SFR). The purpose of our study is to investiga.e the extent to which the redshift distribution of LGRBs follows a.d reflects the SFR. We use a.sa.ple of 370 LGRBs ta.en from the Swift ca.a.og, a.d we investiga.e different models for the LGRB redshift distribution. We a.so ca.ry out monte Ca.lo simula.ions to check the consistency of our results. Our results indica.e tha. the SFR ca. describe the LGRB redshift distribution well for high redshift bursts, but it needs a. evolution term to fit the distribution well a. low redshift.

关键词： Ga.ma.Ra. Bursts Redshift Distribution Sta.-Forma.ion Ra.e

ma.sive Dira. pa.ticles ba.ed on ga.ped gra.hene with Rosen-morse potentia. in a.uniform ma.netic field

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Chinese Physics B 2024年第8期33卷 170-178页

作者： a.Ka.a.i a.ireza.a.a.i m.a.Ra.za.pour Depa.tment of Physics Ayatollah Amoli BranchIslamic Azad UniversityAmolIran

We explore the ga.ped gra.hene structure in the two-dimensiona. pla.e in the presence of the Rosen-morse potentia. a.d a. externa. uniform ma.netic *** order to describe the corresponding structure,we consider the propa.a.ion of electrons in gra.hene a. rela.ivistic fermion qua.i-pa.ticles,a.d a.a.yze it by the wa.e functions of two-component spinors with pseudo-spin symmetry using the Dira. ***,to solve a.d a.a.yze the Dira. equa.ion,we obta.n the eigenva.ues a.d eigenvectors using the Legendre differentia. *** tha.,we obta.n the bounded sta.es of energy depending on the coefficients of Rosen-morse a.d ma.netic potentia.s in terms of qua.tum numbers of principa. n a.d spin-orbit ***,the va.ues of the energy spectrum for the ground sta.e a.d the first excited sta.e a.e ca.cula.ed,a.d the wa.e functions a.d the corresponding proba.ilities a.e plotted in terms of coordina.es *** wha. follows,we explore the ba.d structure of ga.ped gra.hene by the modified dispersion rela.ion a.d write it in terms of the two-dimensiona. wa.e vectors K_(x) a.d K_(y).Fina.ly,the energy ba.ds a.e plotted in terms of the wa.e vectors K_(x) a.d K_(y) with a.d without the ma.netic term.

关键词： ma.sive Dira. equa.ion Rosen–morse potentia. Legendre polynomia. ga.ped gra.hene pseudospin symmetry

Photometric Studies of EV Cnc a.d a. Cnc in the Open Cluster m67

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Resea.ch in a.tronomy a.d a.trophysics 2024年第8期24卷 198-213页

作者： ma.a.ha.Ra.i G. K.Srira. Deblina.La.iri Vija.a.a. Depa.tment of a.tronomy Osmania University

Conta.t bina.ies a. va.ious sta.es of evolution unveil va.ious opera.ing mecha.isms tha. drive *** report the photometric a.d period va.ia.ion a.a.ysis of two conta.t bina.ies EV Cnc a.d a. Cnc in open cluster *** observed the cluster from the JCBT 1.3 m telescope a.d utilized TESS a.d Kepler *** photometric solutions of EV Cnc a.d a. Cnc revea.ed a.ma.s ra.io of q～0.41 a.d～0.15 with a. inclina.ion of i=42°a.d87°*** solutions suggest tha. EV Cnc is proba.ly a.semi-deta.hed a.d a. Cnc is a.deep low-ma.s ra.io conta.t *** study of O-C va.ia.ion a.a.ysis indica.es tha. for both systems,the period is increa.ing which suggests the ma.s tra.sfer is occurring from seconda.y to *** the ca.e of a. Cnc a.d ba.ed on simula.ions by ra.domly va.ying the time of minima.to fit the LITE solution,we noted the third body orbita. period to be a.ound P3=26.82±2.54 yr,which is different from ea.lier reported va.ues a.d conclude tha. future observa.ions a.e required to confirm this *** compa.e these two systems with other simila. conta.t bina.ies to get a. estima.e of the fina. configura.ion of the respective systems.

关键词： (sta.s:) bina.ies (including multiple): close (sta.s:) bina.ies: eclipsing sta.s: a.tivity

First-principles ca.cula.ions to investiga.e structura.,electronic,ma.netic,optica. a.d thermodyna.ic properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm)

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Journa. of Ra.e Ea.ths 2024年第7期42卷 1385-1393,I0007页

作者： a.Eza.er R.ma.rour m.hamedoun J.Kha.ba.h a.Rezzouk a.Hourma.a.la. N.Benza.our K.Bouslykha.e La.ora.ory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In this pa.er,we a.a.yzed the physica. cha.a.teristics of the terna.y a.loys RE_(2)Rh_(3)Ge(RE=Pr a.d Sm)using the first principles ca.cula.ion ba.ed on functiona. density theory integra.ed in the Wien2k *** ca.cula.ed forma.ion energies of Pr_(2)Rh_(3)Ge a.d Sm_(2)Rh_(3)Ge a.e−5.3827 a.d−5.2782 eV/a.om,respectively,showing tha. these a.loys ma. exist *** results of the ba.d structure a.d density of sta.es indica.e tha. a.l of the compounds tested a.e ma.netic meta.s,a.d their ma.netism is mostly rela.ed to the contribution of Pr a.d Sm *** tota. ma.netic moments of Pr_(2)Rh_(3)Ge a.d Sm_(2)Rh_(3)Ge a.e 4.07245 a.d 11.16161μB/f.u,*** pa.a.eters such a. hea. ca.a.ity a. consta.t pressure,entropy,Debye tempera.ure,la.tice volume,compressibility coefficients,a.d Grüneisen pa.a.eter a.loys were ca.cula.ed using the Gibbs a.gorithm a.d studied in depth over a.la.ge tempera.ure ra.ge of 0-900 *** Debye tempera.ure increa.es with increa.ing pressure a.d decrea.es with decrea.ing ***,the Debye tempera.ures ca.cula.ed a. p=0 GPa.a.d T=300 K a.e equa. to be 342 a.d 322 K for Pr_(2)Rh_(3)Ge a.d Sm_(2)Rh_(3)Ge,*** optica. cha.a.teristics such a. the rea. a.d ima.ina.y portions of the dielectric function,the a.sorption coefficient,the energy-loss function,a.d the refra.tive index were investiga.ed a.d discussed in more depth.

关键词： ma.netic meta.s Functiona. density theory Density of sta.es ma.netic moment Optica. a.d thermodyna.ic properties Ra.e ea.ths

Influence of cerium ions on structure-dependent ma.netic properties of Ba.Sr m-type hexa.errite na.ocrysta.s

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Journa. of Ra.e Ea.ths 2024年第2期42卷 364-372,I0005页

作者： Ra. a.Pa.a. Sunil m.Pa.a.ge P.m.Dighe Sher Singh meena.a.dulla. Ga.-Sehemi mehbooba.i Pa.nipa.a.Sa.tosh S.Ja.ha. Depa.tment of Physics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Depa.tment of Physics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia Pa.ma.hri Vikhe Pa.il College of a.ts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid Sta.e Physics Division Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Depa.tment of Chemistry King Khalid UniversityAbha61413Saudi Arabia Depa.tment of Physics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The present study is a.systema.ic effort to investiga.e the structure-sensitive ma.netic pa.a.eters of Ce^(3+) substituted Ba.Sr hexa.errite na.ocrysta.s chemica.ly formula.ed a. Ba.(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexa.errite powders were prepa.ed using the sol-gel self-ignition route a.d structura.ly cha.a.terized by mea.s of powder X-ra. diffra.tion a.d Fourier tra.sform infra.ed *** crea.ion of the m-type hexa.errite pha.e within the synthesized sa.ples wa. revea.ed from the Rietveld refinement of the X-ra. *** occurrence of a.seconda.y pha.e of CeO_(2) wa. revea.ed within the hexa.errites for the substitution,x> *** refined X-ra. diffra.tion da.a.were utilized to compute the la.tice pa.a.eters,X-ra. density,a.d la.tice pa.a.eter *** crysta. structure plotted from the refined XRD da.a.revea.s the occupa.cy of the ions a. different la.tice *** XPS da.a.of the hexa.errite were a.a.yzed to confirm the oxida.ion sta.es of the constituent *** na.ocrysta.line na.ure of the hexa.errites wa. revea.ed from the crysta.lite sizes ca.cula.ed using Scherer's *** a.a.ysis of FTIR spectra.confirms tha. only a.fra.tion of Ce^(3+)a.commoda.ed in the la.tice a.d the rema.ning Ce content reside in the form of the CeO_(2) *** morphology of the hexa.errites wa. a.a.yzed from the FESEm profiles of the ferrite *** ma.netic beha.ior study wa. performed by a.a.yzing the Curie tempera.ure,hysteresis loops,a.d hyperfine intera.tions by mea.s of susceptibility,V.S.m,a.d mossba.er spectroscopy,*** hexa.errites with increa.ing coercivity,decrea.ing sa.ura.ion ma.netiza.ion,a.d decrea.ing Curie tempera.ure a.e reported in the *** substituted Ce^(3+)ions inhibit the gra.n growth a.d crea.e la.tice imperfections giving rise to hexa.errites with tuned ma.netic pa.a.eters suita.le for different a.plica.ions.

关键词： Ba.Sr hexa.errite Ce^(3+)substitution XPS Sa.ura.ion ma.netiza.ion Coercivity m?ssba.er spectroscopy

a.sembly of functiona. ca.boxymethyl cellulose/polyethylene oxide/a.a.a.e TiO_(2) na.ocomposites a.d tuning the dielectric rela.a.ion, optica., a.d photoluminescence performa.ces

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Journa. of Semiconductors 2024年第7期45卷 26-38页

作者： a.ma. m.Isma.l a.eer a.Reffa.e Fa.zy G.El Desouky Spectroscopy Depa.tment Physics Research InstituteNational Research CentreGizaCairo 12622Egypt microwa.e Physics a.d Dielectrics Depa.tment National Research CentreDokkiCairoEgypt Solid Sta.e Physics Depa.tment Physics Research InstituteNational Research CentreGizaCairo 12622Egypt

Na.ocomposite films consisting of ca.boxymethyl cellulose,polyethylene oxide(CmC/PEO),a.d a.a.a.e tita.ium diox-ide(TO)were produced by the use of sol-gel a.d solution ca.ting ***2 na.ocrysta.s were effectively incorpora.ed into CmC/PEO polymers,a. shown by X-ra. diffra.tion(XRD)a.d a.tenua.ed tota. reflecta.ce fourier tra.sform infra.ed(a.R-FTIR)*** roughness growth is a. high levels of TO na.ocrysta.s(TO NCs),which mea.s increa.ing a.tive sites a.d defects in CmC/*** differentia. sca.ning ca.orimetry(DSC)thermogra.s,the cha.ge in gla.s tra.sition tempera.ure(Tg)va.-ues verifies tha. the polymer blend intera.ts with TO *** increment proportions of TO NCs ha.e a.nota.le impa.t on the dielectric performa.ces of the na.ocomposites,a. *** electrica. properties of the CmC/PEO/TO na.ocomposite undergo significa.t *** na.ocomposite films exhibit a.red a.tera.ion in the a.sorption edge a. the concentra.ion of TO NCs increa.es in the polymer *** decline in the energy ga. is rea.ily a.pa.ent a. the weight percenta.e of TO NCs *** photoluminescence(PL)emission spectra.indica.e tha. the sites of the luminescence pea. ma.imums show slight va.ia.ion;pea.s get wider,while their intensities decrea.e dra.a.ica.ly a. the concentra.ion of TO *** na.ocomposite ma.eria.s show potentia. for multifunctiona. a.plica.ions including optoelectronics,a.tireflection coa.ings,pho-toca.a.ysis,light emitting diodes,a.d solid polymer electrolytes.

关键词： a.a.a.e TiO_(2) CmC/PEO na.ocomposites optica. photoluminescent electrica. optoelectronics

Cha.a.teristics of β-La.ta.a.e Synthesis in E. coli a.d K. pneuma.ie Stra.ns in Nosocomia. Infections

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a.va.ces in microbiology 2024年第1期14卷 25-30页

作者： Sa.dra.din a. a.a.ishiza.eh Sa.ya.din a. a.a.ishiza.eh ma.0}ma. m. Da.udov Depa.tment of Infectious Disea.es Azerbaijan Medical University Baku Azerbaijan Depa.tment of Pha.ma.eutica. Technology a.d ma.a.ement Azerbaijan Medical University Baku Azerbaijan Depa.tment of Ora. a.d ma.illofa.ia. Surgery Azerbaijan Medical University Baku Azerbaijan

Ba.kground: Recently micro-orga.isms tha. synthesize extended-spectrum β-la.ta.a.e (ESBLs) were increa.ed. The peculia.ities of ESBL synthesis of Escherichia.coli a.d Klebsiella.pneumonia. stra.ns tha. ca.se nosocomia. urina.y tra.t infections, surgica. site infections a.d pneumonia.in surgica. clinic were studied. ESBL synthesis were observed 38.9% of E. coli stra.ns obta.ned from urine, 92.3% of stra.ns obta.ned from surgica. site infections, a.d 50% of stra.ns obta.ned from sputum. ESBL synthesis were observed 37.5% of K. pneumonia. stra.ns obta.ned from urine, 85.7% of stra.ns obta.ned from surgica. site infections, a.d 60% of stra.ns obta.ned from sputum. Different levels of ESBL synthesize of E. coli a.d K. pneumonia. stra.ns isola.ed from different pa.tern is discussed. Conclusion. ESBL synthesis is common in E. coli a.d K. pneumonia. stra.ns, which ca.se nosocomia. infections. The frequency of occurrence of ESBL s synthesis a.ong of these stra.ns depends on clinica. forms of nosocomia. infections.

关键词： Nosocomia. Infectious a.ents β-La.ta.a.e Synthesis E. coli a.d K. pneumonia.