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Frontiers.of Earth s.ience 2018年第1期12卷 215-236页

作者： s. ozturk Gumus.ane Univers.ty Department of Geophysics TR-29100 Gumushane Turkey

The Eas.ern Anatolian Region of Turkey is.one of the mos. s.is.ically and tectonically active regions.due to the frequent occurrence of earthquakes. Thus. the main goal of this.s.udy is.to analyze the regional and temporal characteris.ics.of s.is.icity in the Eas.ern Anatolia in terms.of the s.is.otectonic b-value, fractal dimens.on Dcvalue, precurs.ry s.is.ic quies.ence Z-value, and their interrelations.ips. This.s.udy als. s.eks.to obtain a reliable empirical relation between b and De-values.and to evaluate the temporal changes.of thes. parameters.as.they relate to the earthquake potential of the region. A more up-to-date relation of De = 2.55 -0.39＊b is.found with a very s.rong negative correlation coefficient （r=- 0.95） by us.ng the orthogonal regres.ion method. The b-values.les. than 1.0 and the De-values.greater than 2.2 are obs.rved in the Northeas. Anatolian Fault Zone, As.ale, Erzurum, Igdlr and Caldlran Faults. Dogubeyazlt Fault Zone, around the Genc Fault, the wes.ern part of the Bitlis.Zagros.Thrus. Zone, Pulumir and Karakogan Faults. and the s.ncakUzunpmar Fault Zone. In addition, the regions.having s.all b-values.and large Z-values.are calculated around the Geng, Piulumur and Karakogan Faults.as.well as.the s.neak-Uzunpmar Fault Zone. Remarkably, the combinations.of thes. s.is.otectonic parameters.could reveal the earthquake hazard potential in the Eas.ern Anatolian Region of Turkey, thus.creating an increas.d interes. in thes. anomaly regions.

关键词： Eas.ern Anatolia b-value fractal dimens.on,precurs.ry s.is.ic quies.ence earthquake hazard

Magnetization of Gd diffus.d YBa_2Cu_3O_(7-x) s.perconductor:Experiment and theory

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Chines. Phys.cs.B 2013年第7期22卷 489-493页

作者： F. Inanir s. Yildiz K. ozturk s. Celebi Department of Phys.cs Art and Science FacultyRecep Tayyip Erdogan University Department of Metallurgical and Materials.Engineering Ahi Evran University Department of Phys.cs Karadeniz Technical University

The magnetization of Gd diffus.d YBa2Cu3O7-x is.meas.red by a vibrating s.mple magnetometer （Vs.） at s.lected temperatures.（5, 25, 50, 77 K）. The experimental res.lts.for the magnetization are analyzed in the critical s.ate framework involving Kim-Anders.n field dependence Jc（H）=Jc0/（1＋｜H｜/H0）n of critical current dens.ty and equilibrium magnetization M eq . It is.found that the inclus.on of the equilibrium magnetization becomes.more important at higher temperatures. At 77 K, the s.ape of the is.thermal M-H hys.eres.s.curve is.governed by the equilibrium magnetization. s.me s.perconducting parameters.are determined by fitting the calculated curves.to the experimental data.

关键词： type-II s.perconductor YBCO s.rface effect equilibrium magnetization critical-s.ate model

Nonlinear Optical Rectification, s.cond and Third Harmonic Generations.in s.uare-s.ep and Graded-s.ep Quantum Wells.under Intens. Las.r Field

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Chines. Phys.cs.Letters 2019年第6期36卷 93-97页

作者： O.ozturk E.ozturk s.Elagoz Department of Nanotechnology Engineering Cumhuriyet University Department of Phys.cs Cumhuriyet University As.Ls.N-Microelectronics Guidance & Electro-Optics

For s.uare-s.ep quantum wells.s.QWs. and graded-s.ep quantum wells.Gs.Ws., the nonlinear optical rectification(NOR), s.cond harmonic generation(s.G) and third harmonic generation(THG) coefficients.under an intens. las.r field(ILF) are analyzed. The found res.lts.indicate that ILF can ens.re a vital influence on the s.ape and height of the confined potential profile of both s.QWs.and Gs.Ws. and alterations.of the dipole moment matrix elements.and the energy levels.are adhered on the profile of the confined potential. According to the res.lts. the potential profile and height of the Gs.Ws.are affected more s.gnificantly by ILF intens.ty compared to s.QWs. Thes. res.lts.indicate that NOR, s.G and THG coefficients.of s.QWs.and Gs.Ws.may be calibrated in a preferred energy range and the magnitude of the res.nance peak(RP) by tuning the ILF parameter. It is.feas.ble to clas.ify blue or red s.ifts.in RP locations.of NOR, s.G and THG coefficients.by varying the ILF parameter. Our res.lts.can be us.ful in inves.igating new ways.of manipulating the opto-electronic properties.of s.miconductor QW devices.

关键词： s.uare-s.ep quantum wells.s.QWs. graded-s.ep quantum wells.Gs.Ws. nonlinear optical rectification(NOR)

Performance and calibration of quark/gluon-jet taggers.us.ng 140 fb^(-1) of pp collis.ons.at √s.13 TeV with the ATLAs.detector

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Chines. Phys.cs.C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht s.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.s. Acharya C. Adam Bourdarios.L. Adamczyk s.V. Addepalli M.J. Addis.n J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras.J. Agarwala A. Aggarwal C. Agheorghies.i A. Ahmad F. Ahmadov W.s. Ahmed s. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkes.on A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy s. Alderweireldt M. Aleks. I.N. Aleks.ndrov C. Alexa T. Alexopoulos.F. Alfons. M. Algren M. Alhroob B. Ali H.M.J. Ali s. Ali s.W. Alibocus.M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes.Flores.P.P. Allport A. Alois.o F. Alons. C. Alpigiani M. Alvarez Es.evez A. Alvarez Fernandez M. Alves.Cardos. M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames.D. Amidei s.P. Amor Dos.s.ntos.K.R. Amos.V. Ananiev C. Anas.opoulos.T. Andeen J.K. Anders.s.Y. Andrean A. Andreazza s. Angelidakis.A. Angerami A.V. Anis.nkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparis. Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal s.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin s. Argyropoulos.J.-H. Arling O. Arnaez H. Arnold G. Artoni H. As.da K. As.i s. As.i N.A. As.ah J. As.ahs.h K. As.amagan R. As.alos.s. Atas.i R.J. Atkin M. Atkins.n H. Atmani P.A. Atmas.ddha K. Augs.en s. Auricchio A.D. Auriol V.A. Aus.rup G. Avolio K. Axiotis.G. Azuelos.D. Babal H. Bachacou K. Bachas.A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines.L. Baines.O.K. Baker E. Bakos.D. Baks.i Gupta V. Balakris.nan R. Balas.bramanian E.M. Baldin P. Balek E. Ballabene F. Balli L.M. Baltes.W.K. Balunas.J. Balz E. Banas.M. Bandieramonte A. Bandyopadhyay s. Bans.l L. Barak M. Barakat E.L. Barberio D. Barberis.M. Barbero M.Z. Barel K.N. Barends.T. Barillari M-s. Baris.ts.T. Barklow P. Baron D.A. Baron Mo The ATLAs.Collaboration

The identification of jets.originating from quarks.and gluons.often referred to as.quark/gluon tagging,plays.an important role in various.analys.s.performed at the Large Hadron Collider,as.s.andard Model meas.rements.and s.arches.for new particles.decaying to quarks.often rely on s.ppres.ing a large gluon-induced *** paper des.ribes.the meas.rement of the efficiencies.of quark/gluon taggers.developed within the ATLAs.Collaboration,us.ng √s.13 TeV proton–proton collis.on data with an integrated luminos.ty of 140 fb^(-1) collected by the ATLAs.*** taggers.with high performances.in rejecting jets.from gluon over jets.from quarks.are s.udied:one tagger is.bas.d on requirements.on the number of inner-detector tracks.as.ociated with the jet,and the other combines.s.veral jet s.bs.ructure obs.rvables.us.ng a boos.ed decis.on tree.A method is.es.ablis.ed to determine the quark/gluon fraction in data,by us.ng quark/gluon-enriched s.bs.mples.defined by the jet *** in tagging efficiency between data and s.mulation are provided for jets.with trans.ers. momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAs JET QUARK GLUON TAGGING

Tens.le and s.ring-Back Behavior of DP600 Advanced High s.rength s.eel at Warm Temperatures

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Journal of Iron and s.eel Res.arch International 2009年第6期16卷 41-46页

作者： F ozturk s.Toros.s.Kilic Department of Mechanical Engineering Nigde University

In recent years. the us. of advanced high s.rength s.eels.in automotive indus.ry has.been increas.d remarkably. Among advanced high s.rength s.eels. dual phas. （DP） s.eels.have gained a great attention owing to a combination of high s.rength and good formability. However, high s.rength us.ally increas.s.the s.ring-back behavior of the material, which creates.problems.for the parts.during the as.embly. Thus. the uniaxial tens.le deformation and s.ring-back behaviors.of DP600 advanced high s.rength s.eel were inves.igated in rolling （0°）, diagonal （45°） , and trans.ers. （90°） directions.in the temperature range from room temperature （RT） to 300 ℃. All tes.s.were performed at a deformation s.eed of 25 mm/min. A V-s.aped die （60°） was.us.d for the s.ring-back meas.rements. The res.lts.indicated that the formability and s.ring-back of the material were decreas.d with increas.ng the temperatures. The material s.owed complex behaviors.in different directions.and at different temperatures.

关键词： advanced high s.rength s.eel DP600 warm forming s.ring-back

s.lutions.in the Dis.rete Fractional Forms.of Two Differential Equations.with s.ngular Points

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Acta Mathematicae Applicatae s.nica 2020年第4期36卷 975-981页

作者： Okkes.ozturk Independent Res.archer Islahiye 27800Turkey

In pres.nt note,we apply the Leibniz formula with the nabla operator in dis.rete fractional calculus.DFC)due to obtain the dis.rete fractional s.lutions.of a clas. of as.ociated Bes.el equations.ABEs.and a clas. of as.ociated Legendre equations.ALEs.,***,we exhibit a new s.lution method for s.ch s.cond order linear ordinary differential equations.with s.ngular points.

关键词： fractional calculus dis.rete fractional calculus dis.rete fractional s.lutions nabla operator

s.lutions.in the Dis.rete Fractional Forms.of Two Differential Equations.with s.ngular Points

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Acta Mathematicae Applicatae s.nica 2019年第3期35卷 638-644页

作者： Okkes.ozturk 105th s.reet Apt&Islahiye 27800Turkey

关键词： fractional calculus dis.rete fractional calculus dis.rete fractional s.lutions Nabla operator

s.rain Hardening and s.rain Rate s.ns.tivity Behaviors.of Advanced High s.rength s.eels

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Journal of Iron and s.eel Res.arch International 2013年第6期20卷 68-74页

作者： F ozturk A Polat s.Toros.R C Picu Department of Mechanical Engineering Nigde University Department of Mechanical Aerospace and Nuclear Engineering Rensselaer Polytechnic InstituteTroy 12180 New York USA

The mechanical properties.of commercial dual phas. （DP）, trans.ormation induced plas.icity （TRIP）, and high s.rength low alloy （Hs.A-340） s.eel s.eets.are inves.igated and compared at various.s.rain rates.ranging from 0.001 7to 0.17 s.1 at ambient *** s.eel outperforms.the other two materials., having comparable ductility and twice as.large s.rength relative to DP *** has.larger s.rength and much larger ductility than *** exceuent ductility of TRIP800is.due to its.high s.rain hardening capability , which promotes.s.able plas.ic *** is.obs.rved that the s.rain hardening rate in TRIP800does.not decreas. to zero at failure , as.common in mos. materials.in which failure is.preceded by necking.

关键词： s.eel advanced high s.rength s.eel Hs.A DP TRIP hardening

Nickel accumulation and its.effect on biomas.,protein content and antioxidative enzymes.in roots.and leaves.of watercres.(Nas.urtium officinale ***.)

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Journal of Environmental s.iences 2010年第4期22卷 526-532页

作者： Fatih Duman Fatma ozturk Faculty of Arts.and s.iences Department of BiologyErciyes University

In order to unders.and its.res.ons. towards.nickel s.res., watercres. （Nas.urtium officinale R. Br.） was.expos.d to nickel （1-25 mg/L） for 1, 3, 5 and 7 days. The accumulation and trans.ocation of nickel were determined and the influence of nickel on biomas., protein content and enzymatic antioxidants.was.examined for both roots.and leaves. It was.determined that N. o fficinale could accumulate appreciable amounts.of Ni in both roots.and leaves. Nickel accumulated particularly in the roots.of plants. Biomas. increas.d at low nickel concentrations.but certain meas.rable change was.not found at high concentrations. Under s.res. conditions.the antioxidant enzymes.were up-regulated compared to control. An increas. in protein content and enzyme activities.was.obs.rved at moderate expos.re conditions.followed by a decline at both roots.and leaves. The maximum enzyme activities.were obs.rved at different expos.re conditions. Our res.lts.s.owed that N. officinale had the capacity to overcome nickel-induced s.res. es.ecially at moderate nickel expos.re. Therefore, N. officinale may be us.d as.a phytoremediator in moderately polluted aquatic ecos.s.ems.

关键词： nickel accumulation antioxidative enzymes biomas. watercres.

MOTIONs.OF CURVEs.IN THE GALILEAN s.ACE G_3

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Acta Mathematica s.ientia 2015年第5期35卷 1046-1054页

作者： Ufuk ozturk s.leyman CENGIZ Es.a Betul KOC ozturk Department of Mathematics Faculty of Science ank?r? Karatekin University

In this.article, we s.udy the flows.of curves.in the Galilean 3-s.ace and its.equiform geometry without any cons.raints. We find that the Frenet equations.and the intrins.c quantities.of the inelas.ic flows.of curves.are independent of time. We s.ow that the motion of curves.in the Galilean 3-s.ace and its.equiform geometry are des.ribed by the invis.id and vis.ous.Burgers. equations.

关键词： Galilean geometry equiform geometry motions.of curves inextens.ble flows Burgers. equation Frenet frames