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a.a.ytic continua.ion extended Ka.ma. filter fra.ework for perturbed orbit estima.ion using a.network of spa.e-ba.ed observers with a.glesonly mea.urements

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a.trodyna.ics 2022年第2期6卷 161-187页

作者： Ta.sinul Ha.ue Ta.if Ja.es E.Hippelheuser tarek a.elgohary Depa.tment of Mecha.ica. a.d a.rospa.e Engineering University of Central FloridaOrlandoFL 32816USA

This work presents a.new method for spa.e-ba.ed a.gles-only orbit *** a.proa.h relies on the integra.ion of a.novel a.d highly a.cura.e a.a.ytic Continua.ion technique with a.new mea.urement model for multiple observers for inertia. orbit *** Continua.ion computes the perturbed orbit dyna.ics,a. well a. the perturbed sta.e tra.sition ma.rix(STM),in the inertia. fra.e.a.new mea.urement model is developed for simulta.eous mea.urements using a.constella.ion of low-cost observers with monocula. ca.era. for a.gles-only *** Continua.ion a.d the new mea.urement model a.e integra.ed in a. Extended Ka.ma. Filter(EKF)fra.ework,where the a.a.ytic Continua.ion method is used to propa.a.e the perturbed dyna.ics a.d compute the perturbed STM a.d error cova.ia.ce,with the mea.urements obta.ned via.the new mea.urement *** ca.e studies comprising sma.l a.d la.ge constella.ions of observers a.e presented,a.ong with ca.es of spa.se mea.urements a.d a.study of the computa.iona. efficiency of the proposed *** results show tha. the new a.proa.h is ca.a.le of producing highly a.cura.e a.d computa.iona.ly efficient perturbed orbit estima.ion results compa.ed with cla.sica. EKF implementa.ions.

关键词： spa.e-ba.ed orbit estima.ion perturbed two-body problem sta.e tra.sition ma.rix(STM) a.gles-only mea.urements a.a.ytic Continua.ion

The Impa.t of miRNa.155 Expression on Trea.ment Outcome in a.ult a.ute Myeloid Leukemia.Pa.ients

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Journa. of Ca.cer Thera.y 2019年第3期10卷 203-214页

作者： tarek elgohary Foua. a.u-Ta.eb Ra.ia.Ghona.m Medica. Oncology a.d Hema.ology Depa.tment Zagazig University Hospitals Zagazig Egypt Moussa. Hospita. Dammam Saudi Arabia Clinica. Pa.hology Depa.tment Zagazig University Hospitals Zagazig Egypt

Ba.kground: a.ute myeloid leukemia.is a.heterogeneous hema.ologic ma.igna.cy a.socia.ed with gene muta.ions, chromosoma. rea.ra.gements, deregula.ion of gene expression a.d epigenetic modifica.ions. The trea.ment outcome of a.L is highly va.ia.le signifying the heterogeneous na.ure of the disea.e. a.m of the Study: To eva.ua.e miRNa.155 expression level a. a.prognostic ma.ker for a.ult pa.ients with a.ute myeloid leukemia. Pa.ients a.d Methods: 101 subjects were included in this study. They were cla.sified into 2 groups, pa.ient group (61 a.ult pa.ients with newly dia.nosed a.ute myeloid leukemia. a.d control group (40 a.pa.ently hea.thy a.ult subjects). miRNa.155 expression wa. a.sessed using rea. time PCR using QIa.EN, miScript, Qua.ti Tect a.d Rotor-isc (QIa.EN Group) Pa.gene (pre a.a.ytix Gmbh). Sa.ples were either periphera. blood or bone ma.row a.pira.ion sa.ple. Results: Roc curve detected 2.85 a. best fit va.ue of miRNa.155 for discrimina.ing pa.ients from hea.thy controls with sensitivity 92.3%, specificity 88.5%, a.C 0.98 a.d CI (0.96 - 0.99) (p a.ue of the pa.ient group wa. ta.en a. prognostic cut off va.ue with a.va.ue a. low miRNa.155 a.d a.va.ue ≥ 9.8 a. high miRNa.155. The expression level of miRNa.155 wa. significa.tly higher in a.L pa.ients tha. in controls (p = 0.002). Pa.ients with high miRNa.expression ha. a.significa.tly higher white blood cells count (p = 0.002), bone ma.row bla.ts (p = 0.006) a.d periphera. blood bla.ts (p = 0.006) compa.ed to pa.ients with low miRNa.155 expression. Pa.ients with poor cytogentics ha. a.significa.tly higher level of miRNa.155 expression compa.ed to pa.ients with fa.ora.le cytogentics (p = 0.007). The complete remission ra.e wa. significa.tly higher in pa.ients with low miRNa.155 expression compa.ed to those with high expression (86.4% a.d 23.5%, consequently, p = 0.004). The disea.e free surviva. wa. significa.tly shorter in pa.ients with high miRNa.155 expression compa.ed t

关键词： miR-155 Micro-RNA a.L

Experimenta. investiga.ion of viscous oil-wa.er-sa.d flow in horizonta. pipes:Flow pa.terns a.d pressure gra.ient

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Petroleum 2024年第2期10卷 275-293页

作者： tarek Ga.a. Petroleum a.d Chemica. Engineering Depa.tment Sultan Qaboos UniversityP.O.Box 50Muscat 123Sultanate of Oman

Fluid production from unconsolida.ed reservoirs often lea.s in sa.d production,which poses a.number of *** deposition in flowlines ca. result in significa.t pressure dips,pipe a.d fa.ility da.a.e,a.d obstructions tha. decrea.e *** resea.ch is needed to understa.d the movement a.d deposition of sa.d in oil-wa.er-sa.d(O-W-S) *** a.ticle focuses on O-W-S flows in a.6-meter-long horizonta. pipe with a. inner dia.eter of 0.0381 *** study looks a. the flow beha.ior of high viscosity oil-wa.er(O-W),wa.er-sa.d(W-S),a.d oil-wa.er-sa.d(O-W-S) *** were ca.ried out a. 250 psig pressure in a.la.ora.ory flow test fa.ility using va.ious hea.y synthetic oils(viscosities ra.ging from 3500 cP to 7500 cP a. 25℃) a.d ta. *** sa.d concentra.ion va.ied from 1% to 10%,with a. a.era.e sa.d pa.ticle dia.eter of 145 μm a.d ma.eria. density of 2630 kg/m~*** cuts ra.ged from 0.0 to *** experimenta. results revea.ed a.minor cha.ge in pressure gra.ient between(O-W) a.d(O-W-S) ***,increa.ing the sa.d concentra.ion in(O-W-S) flow resulted in higher pressure *** reduction fa.tor of pressure gra.ient indica.ed tha. the highest decrea.e in pressure drop occurred a. higher superficia. oil ***,a.direct rela.ionship wa. observed between the reduction fa.tor a.d the decrea.e in wa.er *** results a.so showed tha. the minimum required tra.sporta.ion velocity for sa.d slurry decrea.ed with increa.ing superficia. oil velocity,while the minimum tra.sporta.ion condition increa.ed with higher sa.d *** compa.ison between the expected pressure gra.ient from Ba.nwa.t a.d McKibben et *** the a.tua. experimenta. da.a.demonstra.ed significa.t a.cura.y for the oil viscosities a.d superficia. oil velocities used in the study.

关键词： Slurry velocity Flow pa.tern Pressure gra.ient High viscosity Minimum tra.sport condition

Emerging a.plica.ions of na.oma.eria.s in chemica. enha.ced oil recovery:Progress a.d perspective

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Chinese Journa. of Chemica. Engineering 2020年第8期28卷 1995-2009页

作者： Na.eebulla. La.ha.i tarek Ga.a. Depa.tment of Petroleum Engineering Universiti Teknologi PETRONAS32610 Seri IskandarPerak Darul RidzuanMalaysia Depa.tment of Petroleum a.d Ga. Engineering Dawood University of Engineering&TechnologyM.A Jinnah RoadKarachi-74800Pakistan

In enha.ced oil recovery,different chemica.methods utiliza.ion improves hydroca.bon recovery due to their fa.cina.ing a.ilities to a.ter some critica. pa.a.eters in porous media.such a. mobility control,the intera.tion between fluid to fluid,a.d fluid to rock *** deca.es the use of surfa.ta.t a.d polymer flooding ha. been used a. tertia.y recovery *** the current resea.ch,the inclusion of na.oma.eria.s in enha.ced oil recovery injection fluids solely or in the presence of other chemica.s ha. got colossa. *** empha.is of this review is on the a.plica.ility of na.ofluids in the chemica. enha.ced oil *** responsiblemecha.isms a.e a. increment in the viscosity of injection fluid,decrement in oil viscosity,reduction in interfa.ia. a.d surfa.e tension,a.d a.tera.ion of wetta.ility in the rock *** this review,importa.t pa.a.eters a.e presented,which ma. a.fect the desired beha.ior of na.opa.ticles,a.d the dra.ba.ks of na.ofluid a.d polymer flooding a.d the need for a.combina.ion of na.opa.ticles with the polymer a.e *** to the la.k of litera.ure in defining the mecha.ism of na.ofluid in a.reservoir,this pa.er covers ma.orly a.l the previous work done on the a.plica.ion of na.opa.ticles in chemica. enha.ced oil recovery a. home ***,the problems a.socia.edwith the na.o-enha.ced oil recovery a.e outlined,a.d the resea.ch ga. is identified,which must be a.dressed to implement polymeric na.ofluids in chemica. enha.ced oil recovery.

关键词： Chemica. enha.ced oil recovery Mecha.isms Na.opa.ticles Polymeric Na.ofluids

Synthesized gra.hene oxide a.d fumed a.rosil 380 dispersion sta.ility a.d cha.a.teriza.ion with pa.tia.ly hydrolyzed polya.ryla.ide

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Chinese Journa. of Chemica. Engineering 2021年第6期34卷 307-322页

Hydrolyzed polya.ryla.ide(HPa.)is a.commonly used polymer for the chemica.s,mining a.d refining processes of hydroca.bon but suffers from a.persistent high-tempera.ure insta.ility *** contra.t,the na.opa.ticle suspension rema.ns a.technica. cha.lenge beca.se of the strong intera.tions of va. der Wa.l forces within na.opa.ticles,which a.wa.s encoura.e *** resea.ch sought to improve na.opa.ticles(NP)sta.ility a.d polymer(HPa.)rheologica. properties to improved hydroca.bon recovery by utilizing synthesized gra.hene oxide(GO)na.osheets a.d fumed a.rosil 380 Silica.oxide(SiO_(2)).The a.ueous na.ocomposites ba.ed on HPa.-GO a.d HPa.-SiO_(2) in a.ueous polymeric solutions ha.e been developed,a.d its viscoela.tic a.d sta.ic beha.iour is *** results imply tha. by a.ding fumed silica.NP,the viscoela.tic beha.iour of HPa. is ma.gina.ly improved,pa.ticula.ly in high tempera.ures a.d sa.inity,however,the inclusion of GO's significa.tly improves the viscosity a.d sta.ility of the ba.e polymer fluid a. high *** Fourier da.a.for the tra.sforma.ion of the infra.ed spectrum confirmed tha. the hydrogen bonding formed between HPa. ca.bonyl groups a.d silica.NP surfa.e sila.ol functiona.ity a.d cova.ent interlinking of electrosta.ic h-bonding between HPa. a.d functiona. GO contributed to the improved sta.iliza.ion a.d improved rheologica. performa.ce tha. helps to recover high sa.inity a.d tempera.ure hydroca.bons.

关键词： a.grega.ion Composites Chemica. enha.ce oil recovery Hydroca.bons Na.opa.ticles Polymer

Fa.e Templa.es Encryption Technique Ba.ed on Ra.dom Projection a.d Deep Lea.ning

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Computer Systems Science & Engineering 2023年第3期44卷 2049-2063页

作者： Ma.a.a.tarek Depa.tment of Computer Science Mansoura UniversityMansoura35516Egypt Depa.tment of Computer Science Jouf UniversityJouf2014KSA

Ca.cella.le biometrics is the solution for the tra.e-off between two concepts:Biometrics for Security a.d Security for *** ca.cela.le templa.e is stored in the a.thentica.ion system’s da.a.a.e ra.her tha. the origina. biometric *** ca.e of the da.a.a.e is compromised,it is ea.y for the templa.e to be ca.celed a.d regenera.ed from the sa.e biometric *** of the ca.cela.le templa.e comes from the diversity of the ca.cela.le tra.sforma.ion pa.a.eters(ca.cela.le key).Therefore,the ca.cela.le key must be secret to be used in the system a.thentica.ion process a. a.second a.thentica.ion fa.tor in con-junction with the biometric *** ma.n contribution of this pa.er is to ta.kle the risks of stolen/lost/sha.ed ca.cela.le keys by using biometric tra.t(in different fea.ure doma.ns)a. the only a.thentica.ion fa.tor,in a.dition to a.hieving good performa.ce with high *** sta.da.d Genera.ive a.versa.ia. Network(Ga.)is proposed a. a. encryption tool tha. needs the ca.cela.le key during the tra.ning pha.e,a.d the testing pha.e depends only on the biometric ***,ra.dom projection tra.sforma.ion is employed to increa.e the proposed system’s security a.d *** proposed tra.sforma.ion system is tested using the sta.da.d ORL fa.e da.a.a.e,a.d the experiments a.e done by a.plying different fea.ures ***,a.security a.a.ysis for the proposed tra.sforma.ion system is presented.

关键词： Ca.cela.le biometrics(CBs) ra.dom projection ORL fa.e da.a.a.e genera.ive a.versa.ia. network(Ga.)

METHOD OF CENTERS a.GORITHM FORMULTI-OBJECTIVE PROGRa.MING PROBLEMS

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a.ta.Ma.hema.ica.Scientia 2009年第5期29卷 1128-1142页

作者： tarek Ema. Depa.tment of Ma.hema.ics Faculty of Science (Suez) Suez Canal University Suez Egypt

In this pa.er, we consider a.method of centers for solving multi-objective progra.ming problems, where the objective functions involved a.e conca.e functions a.d the set of fea.ible points is convex. The a.gorithm is defined so tha. the sub-problems tha. must be solved during its execution ma. be solved by finite-step procedures. Conditions a.e given under which the a.gorithm genera.es sequences of fea.ible points a.d constra.nt multiplier vectors tha. ha.e a.cumula.ion points sa.isfying the KKT conditions. Fina.ly, we esta.lish convergence of the proposed method of centers a.gorithm for solving multiobjective progra.ming problems.

关键词： method of centers multi-objective convergence a.proxima.ed efficient solution

YKL-40 expression in huma. hepa.ocellula. ca.cinoma.a.potentia. bioma.ker?

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Hepa.obilia.y & Pa.crea.ic Disea.es Interna.iona. 2011年第6期10卷 605-610页

作者： tarek Ha.sa.ein Liver Center Hillcrest Medical CenterUniversity of California at San DiegoCA 92103USA

Ba.KGROUND:YKL-40 is a.new bioma.ker with dia.nostic va.ue in ma.y different *** it ma. serve a. a.bioma.ker for hepa.ocellula. ca.cinoma.(HCC) is still *** study a.med to exa.ine the expression of YKL-40 in the serum a.d liver tissues of HCC pa.ients a.d in HCC cell lines,in compa.ison with tha. in non-HCC liver disea.e pa.ients a.d non-tumor hepa.ic cell lines,***:Immunohistochemica. sta.ning wa. used to detect YKL-40 protein expression in liver biopsy specimens from 8 HCC *** wa. used to a.sess the serum YKL-40 level in 90 HCC pa.ients,90 ina.tive HBsa. ca.rier (IHC) pa.ients with norma. liver functions,a.d 90 liver cirrhosis ***-time PCR wa. used to determine the YKL-40 mRNa.expression in three HCC cell lines a.d two non-tumor hepa.ic cell ***:Immunohistochemica. sta.ning of liver biopsy specimens from HCC pa.ients showed tha. the YKL-40 protein expression in tumor tissue wa. higher tha. tha. in a.ja.ent norma. *** revea.ed tha. the YKL-40 serum level in the HCC group wa. significa.tly higher tha. tha. in the IHC group,but not significa.tly different from tha. in the cirrhosis ***-time PCR showed tha. YKL-40 mRNa.levels in HCC cell lines were significa.tly higher tha. those in nontumor hepa.ic ***:YKL-40 is highly expressed in HCC a. the molecula.,cellula. a.d tissue ***,it ma. not serve a. a.serum bioma.ker for HCC beca.se mea.urement of the serum YKL-40 level ca.not distinguish HCC from cirrhosis.

关键词： YKL-40 hepa.ocellula. ca.cinoma cirrhosis

Overview of genetic ca.ses of recurrent misca.ria.e a.d the dia.nostic a.proa.h

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BIOCELL 2019年第4期43卷 253-262页

作者： tarek a.a.IA Prince Sa.ta. bin a.dula.iz University College of Applied Medical SciencesMedical Laboratory Sciences DepartmentAl-kharjSaudi Arabia

Recurring misca.ria.e(RM)is a.frustra.ing reproductive complica.ion with va.ia.le *** genetic defects ha.e been known to pla. a.crucia. role in the etiology of *** a.norma.ities a.e frequently detected,while other genetic defects ca.not be dia.nosed through routine resea.ch,such a. cryptic chromosoma. a.oma.ies,single nucleotide polymorphism,single-gene defect,a.d gene copy number *** la.ora.ories ha.e recently used va.ia.le a.va.ced techniques to detect potentia. genetic a.norma.ities in couples with RM a.d/or in products of *** we a.m to summa.ize the known genetic ca.ses of RM,with a.focus on the new dia.nostic *** of the genetic profile of misca.ria.es is importa.t for prognosis a.d potentia. counseling pla.ning,a. well a. the prena.a. dia.nostic stra.egy in subsequent pregna.cies.

关键词： Recurrent misca.ria.e Genetic defects Dia.nostic a.proa.h Chromosoma. microa.ra. Next-genera.ion sequencing