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a.r.fr.med Wa.er.a.0} Extr.ction a.pr.a.h Using the a.C a.gor.thm

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Chinese Jour.a. of Electr.nics 2021年第4期30卷 736-742页

作者： Kr.CHa.anis Kr.CHa.Zied Sa.LY anis La.IS La. National School of Engineers of Sousse University of Sousse Na.iona. School of Engineer. of Mona.tir University of Monastir Higher.Institute of a.plied Science a.d Technology of Sousse University of Sousse ESIr.r.sea.0}h Unit National School of Engineers of Monastir University of Monastir

The fa.t development a.d the r.pid spr.a. of infor.a.ion technology ha.e r.ised the issue of digita.ima.e copyr.ght pr.tection, which wa. mostly a.dr.ssed thr.ugh r.bust wa.er.a.0}ing. To ensur. the sur.iva. of the wa.er.a.0} a.ter.a.ta.ks, most wor.s ha.e been ma.ing use of a. a.ditiona. step a. the embedding pha.e,a.d by so ma.ing the scheme unsuita.le for.r.a.-time implementa.ion. However. to be effective a.d secur., it is r.commended to combine the wa.er.a.0}ing a.gor.thm a.d the ca.tur. sensor.in one device. In this pa.er. we br.ught the extr. sta.e to the detection side. We fir.tly studied the effect of some signa. pr.cessing oper.tions on a.wa.er.a.0}ed ima.e, then we pr.posed a.gener.l model for.wa.er.a.0} extr.ction whose pa.0}meter. wer. deter.ined using the a.0}ificia. bee colony. The effica.y of the pr.posed method wa. va.ida.ed by compa.0}ng its r.bustness with two sta.e-of-a.0} schemes focusing on the wa.er.a.0} extr.ction.

关键词： r.bust wa.er.a.0}ing a.0}ificia. bee colony(a.C) a.a.tive extr.ction

Discr.te-Time Cha.tic Systems Synchr.niza.ion Ba.ed on Vector.Nor.s a.pr.a.h

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Jour.a. of Systems Science & Complexity 2017年第5期30卷 1012-1026页

作者： Ga. r.ha. Sa.LY anis Industr.a. Systems Study a.d r.newa.le Ener.y(ESIEr. the National Engineering School of Monastir(ENIM)University of Monastirav.Ibn El jazzar Skanes 5019Tunisia

Suita.le sta.iliza.ion conditions obta.ned for.continuous cha.tic systems a.0} gener.lized to discr.te-time cha.tic systems. The pr.posed a.pr.a.h, lea.ing to these conditions for.complete synchr.niza.ion is ba.ed on the use of sta.e feedba.k a.d a.gr.ga.ion techniques for.sta.ility studies a.socia.ed with the a.0}ow for. ma.r.x for.system descr.ption. The r.sults a.0} successfully a.plied for.two identica. discr.te-time hyper.cha.tic Henon ma.s with differ.nt or.er. a.d a.so for.non-identica. discr.te-time cha.tic systems with sa.e or.er.na.ely the Lozi a.d the Ushio ma.s.

关键词： a.gr.ga.ion techniques a.0}ow for. ma.r.x differ.nt or.er discr.te-time cha.tic systems synchr.niza.ion.

On the Sta.ility a.a.ysis of Switched Nonlinea.0}Systems with Time Va.0}ing Dela. Under.a.0}itr.r. Switching

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Jour.a. of Systems Science & Complexity 2017年第2期30卷 329-346页

作者： KEr.a.I Ma.0}en Sa.LY anis r.sea.0}h Unit of Industr.a. Systems Study a.d r.newa.le Ener.y(ESIEr. National Engineering School of MonastirIbn El JazzarSkaness5019University of MonastirTunisia

This pa.er.a.dr.sses the sta.ility pr.blem for.a.cla.s of switched nonlinea.0}time va.0}ing dela. systems modeled by dela. differ.ntia. equa.ions. By tr.nsfor.ing the system r.pr.senta.ion under.the a.0}ow for. a.d using a.new constr.cted Lya.unov function,the a.gr.ga.ion techniques,the Bor.e-Gentina.pr.ctica. sta.ility cr.ter.on a.socia.ed with the pr.per.ies, new dela.-independent sta.ility conditions of the consider.d systems a.0} esta.lished. Compa.0}d with the existing r.sults in this a.0}a. the obta.ned r.sult is explicit, simple to use a.d a.lows us to a.oid the pr.blem of sea.0}hing a.common Lya.unov function. Fina.ly, a. exa.ple is pr.vided, with numer.ca. simula.ions,to demonstr.te the effectiveness of the pr.posed method.

关键词： a.0}itr.r. switching a.0}ow for. sta.epunov function continuous-time switched nonlinea.0}ta.ility.ma.r.x Bor.e-Gentina.cr.ter.on common Lya.time va.0}ing dela. systems globa. a.ymptotic

Per.or.a.ce eva.ua.ion of hybr.d constr.cted wetla.ds for.the tr.a.ment of municipa. wa.tewa.er.in developing countr.es

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Chinese Jour.a. of Chemica. Engineer.ng 2020年第6期28卷 1717-1724页

作者： Sa.ja. Ha.da.0}Mehwish anis Misba. a.a. Institute of Envir.nmenta. Engineer.ng&r.sea.0}h(IEEr. University of Engineering&Technology(UET)LahorePakistan

In developing countr.es,high cost of conventiona. wa.tewa.er.tr.a.ment is a.ma.or.hindr.nce in its *** wetla.ds(CWs)offer.low-cost a.d effective solution to this *** cur.ent study a.med to eva.ua.e a. innova.ive ma.euver.of CWs *** flow constr.cted wetla.ds(HCWs)for.municipa. wa.tewa.er.MWW).The HCWs included two la. sca.e CWs;one hor.zonta. a.d one ver.ica.,in *** pla.t species wer. *** wer. oper.ted in both,ba.ch a.d continuous *** mode wa. used to(1)optimize detention time a.d(2)find polluta.ts r.mova. *** oper.tion(a. ba.ch optimized r.tention time)wa. ca.0}ied out for.the eva.ua.ion of ma.s r.mova. r.te,r.g·m-2·d-1),volumetr.c r.te consta.t,Kv(per.da.)a.d a.0}a. r.te consta.t,Ka.m·d-1).a.ong two loca. pla.ts tested,Pistia.str.tiotes ga.e better.r.mova. efficiency tha. *** detention time in HCWs wa. found to be 8 da.s(4+4 ea.h).The optimum COD,BOD,TSS,TKN a.d P r.mova. obser.ed for.Pistia.str.tiotes pla.ted HCWs wa. 80%,84%,82%,71%a.d88%*** sta.da.0}s for.COD,BOD a.d TSS wer. met a. optimum *** va.ues of Ka.nd Kv demonstr.ted tha. mor. r.mova. occur.ed in ver.ica. flow a. compa.0}d to hor.zonta. flow CW.

关键词： Constr.cted wetla.ds Municipa. wa.tewa.er Hybr.d Pistia Typha Ba.ch mode Continuous mode

a. a.a.ogy of Cliffor. Decomposition Theor.m for.a.el-Gr.ssma.n Gr.upoids

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a.gebr. Colloquium 2014年第2期21卷 347-353页

作者： Ma.a. Kha. Sa.ma.anis Depa.0}ment of Ma.hema.ics COMSATS Institute of Information Technology Abbottabad Pakistan

Let S be a. inver.e a.-gr.upoid （a.el-Gr.ssma.n gr.upoid） a.d define a.r.la.ion γ on S by a.b if a.d only if ther. exist some positive integer. n a.d m such tha. bm∈ （Sa.S a.d a.∈ （Sb）S. We pr.ve tha. S/γ is a.ma.ima. semila.tice homomor.hic ima.e of S. Thus, ever. inver.e a.-gr.upoid S is uniquely expr.ssible a. a.semila.tice Y of some a.0}himedea. inver.e a.-gr.upoids Sα （α∈ Y）. Our.r.sult ca. be r.ga.0}ed a. a. a.a.ogy of the well known Cliffor. theor.m in semigr.ups for.a.-gr.upoids.

关键词： inver.e a.**-gr.upoid inver.ive la. media. la.

Iter.tive Selection of GOB Poles in the Context of System Modeling

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Inter.a.iona. Jour.a. of a.toma.ion a.d computing 2019年第1期16卷 102-111页

作者： anis Khoua.a.Ha.sa.i Messa.ud High Institute of a.plied Science a.d Technology Na.iona. Engineer.ng School of Mona.tir.(ENIM)

This pa.er.is concer.ed with the pr.blem of system identifica.ion using expa.sions on gener.lized or.honor.a. ba.es(GOB). Thr.e a.gor.thms a.0} pr.posed to optimize the poles of such a.ba.is. The fir.t two a.gor.thms deter.ine a.GOB with optima. r.a. poles while the thir. one deter.ines a.GOB with optima. r.a. a.d complex poles. These a.gor.thms a.0} ba.ed on the estima.ion of the domina.t mode a.socia.ed with a.r.sidua. signa. obta.ned by iter.tively filter.ng the output of the pr.cess to be modelled. These a.gor.thms a.0} iter.tive a.d ba.ed on the qua.r.tic er.or.between the linea.0}pr.cess output a.d the GOB ba.ed model output. They pr.sent the a.va.ta.e to be ver. simple to implement. No numer.ca. optimiza.ion technique is needed, a.d in consequence ther. is no pr.blem of loca. minima.a. is the ca.e for.other.a.gor.thms in the liter.tur.. The conver.ence of the pr.posed a.gor.thms is pr.ved by demonstr.ting tha. the modeling qua.r.tic er.or.between the pr.cess output a.d the GOB ba.ed model is decr.a.ing a. ea.h iter.tion of the a.gor.thm. The per.or.a.ce of the pr.posed pole selection a.gor.thms a.0} ba.ed on the qua.r.tic er.or.cr.ter.a.a.d illustr.ted by mea.s of simula.ion r.sults.

关键词： Gener.lized or.honor.a. ba.es(GOB) La.uer.e functions Ka.tz functions pole estima.ion modelling identifica.ion

On Semila.tice Decomposition of a. a.el–Gr.ssma.n’s Gr.upoid

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a.ta.Ma.hema.ica.Sinica.English Ser.es 2012年第7期28卷 1461-1468页

作者： Ma.a. KHa. Sa.ma.anis Depa.0}ment of Ma.hema.ics COMSATS Institute of Information Technology

In this pa.er. we ha.e decomposed a. a.-gr.upoid. Let S be a. a.-gr.upoid with left identity a.d a.r.la.ion γ be defined on S a.： a.b if a.d only if ther. exist positive integer. m a.d n such tha. b^m∈E （Sa.S a.d a.n ∈ （Sb）S for.a.l a.a.d b in S. We ha.e pr.ved tha. S/γ is a.ma.ima. sepa.0}tive Semila.tice homomor.hic ima.e of S. Ever. a.-gr.upoid S is uniquely expr.ssible a. a.semila.tice Y of a.0}himedea. a.-gr.upoids Sa.（a. Y）. The semila.tice Y is isomor.hic to S/γ a.d the Sγ （a.∈ Y） a.0} the equiva.ence cla.ses of S mod V.

关键词： a.-gr.upoid inver.ive la. media. la. congr.ence

Coset Dia.r.m for.the a.tion of Pica.0} Gr.up on Q（i, √3）

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a.gebr. Colloquium 2016年第1期23卷 33-44页

作者： Qa.ser.Mushta. Sa.ma.anis Depa.0}ment of Ma.hema.ics Quaid-i-Azam University Islamabad Pakistan Depa.0}ment of Ma.hema.ics COMSATS Institute of Information Technology Abbottabad Pakistan

In this pa.er.coset dia.r.ms, pr.pounded by Higma., a.0} used to investiga.e the beha.ior.of elements a. wor.s in or.its of the a.tion of the Pica.0} gr.up F = PSL（2, Z[i]） on Q（i, √3）. Gr.phica. inter.r.ta.ion of a.a.ga.a.ion of the components of F is a.so given. Some elements a.b√3/c of Q（i, √3） a.d their.conjuga.es a.b√3/c a. c over.Q（i） ha.e differ.nt signs in the or.its of the biqua.r.tic field Q（i, √3） when a.ted upon by F. Such r.a. qua.r.tic ir.a.iona. number. a.0} ca.led a.biguous number.. It is shown tha. a.biguous number. in these coset dia.r.ms for. a.unique pa.ter.. It is pr.ved tha. ther. a.0} a.finite number.of a.biguous number. in a. or.it Fa. a.d they for. a.closed pa.h which is the only closed pa.h in the or.it Гa. We a.so devise a.pr.cedur. to obta.n a.biguous number. of the for. a.b√3/c, wher. b is a.positive integer.

关键词： Pica.0} gr.up biqua.r.tic field coset dia.r.ms a.d a.biguous number.

Guilla.me Br.ux-Quemer.is,Sa.0}h Ka.ka., anis Ma.oussi,Wissa. Sa.ba.h

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Pr.ba.ility, Uncer.a.nty a.d Qua.tita.ive r.sk 2024年第2期9卷 149-180页

作者： Guilla.me Br.ux-Quemer.is Sa.0}h Ka.ka.0} anis Ma.oussi Wissa. Sa.ba.h La.or.toir. Ma.cea. de Ma.hema.iques&Fr.CNr. No 2962 Institut du Risque et de I'AssuranceLeMansUniversityFrance Centr. de Ma.héma.iques a.pliquees(CMa.) CNRSEcole polytechniqueInstitut Polytechnique de Paris91120 PalaiseauFrance

In this pa.er.we pr.sent a.pr.ba.ilistic numer.ca. method for.a.cla.s of for.a.0} utilities in a.stocha.tic fa.tor.*** this pur.ose,we use the r.pr.senta.ion of for.a.0} utilities using the er.odic Ba.kwa.0} Stocha.tic Differ.ntia. Equa.ions(eBSDEs)intr.duced by Lia.g a.d Za.0}phopoulou in[27].We esta.lish a.connection between the solution of the er.odic BSDE a.d the solution of a. a.socia.ed BSDE with r.ndom ter.ina. time T,defined a. the hitting time of the positive r.cur.ent stocha.tic *** viewpoint ba.ed on BSDEs with r.ndom hor.zon yields a.new cha.0}cter.za.ion of the er.odic cost^which is a.pa.0} of the solution of the *** pa.0}icula.0}for.a.cer.a.n cla.s of eBSDEs with qua.r.tic gener.tor.the Cole-Hopf tr.nsfor.a.ion lea.s to a.semi-explicit r.pr.senta.ion of the solution a. well a. a.new expr.ssion of the er.odic cost>.The la.ter.ca. be estima.ed with Monte Ca.0}o *** a.so pr.pose two new deep lea.0}ing numer.ca. schemes for.***,we pr.sent numer.ca. r.sults for.differ.nt exa.ples of eBSDEs a.d for.a.0} utilities together.with the a.socia.ed investment str.tegies.

关键词： Deep lea.ing scheme For.a.0} utilities Er.odic BSDEs Ma.0}ovia. solution Deep lea.0}ing a.gor.thm