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Predictors of long-term surviva. a.ter pa.crea.icoduodenectomy for peri-a.pulla.y a.enoca.cinoma. a.retrospective study of 5-yea. survivors

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Hepa.obilia.y & Pa.crea.ic Disea.es Interna.iona. 2018年第5期17卷 443-449页

作者： a.ma. el Na.eeb Moha.ed el Sorogy Helmy Ezza. Ra.i said Moha.ed el Dosoky Moha.ed abd el Ga.a. a.med M elsa.a.h Eha. el Ha.a.y Ga.troenterology Surgica. Center Mansoura University

Ba.kground: Pa.crea.icoduodenectomy(PD) is the sta.da.d cura.ive trea.ment for peria.pulla.y tumors. The a.m of this study is to report the incidence a.d predictors of long-term surviva.( ≥ 5 yea.s) a.ter PD. Methods: This study included pa.ients who underwent PD for pa.hologica.ly proven peria.pulla.y a.enoca.cinoma.. Pa.ients were divided into 2 groups: group(I) pa.ients who survived less tha. 5 yea.s a.d group(II) pa.ients who survived ≥ 5 yea.s. Results: There were 47(20.6%) long-term survivors( ≥ 5 yea.s) a.ong 228 pa.ients underwent PD for peria.pulla.y a.enoca.cinoma. Pa.ients with a.pulla.y a.enoca.cinoma.represented 31(66.0%) of the long-term survivors. Prima.y a.a.ysis showed tha. fa.oura.le fa.tors for long-term surviva. include a.e a.s old, serum CEa.a.19-9 a.y tumor, postopera.ive pa.crea.ic fistula. R0 resection, postopera.ive chemothera.y, a.d no recurrence. Multiva.ia.e a.a.ysis demonstra.ed tha. Ca.19-9 a.ler tumor size [OR(95% CI) = 1.335(1.032–1.726), P = 0.028] a.d R0 resection [OR(95% CI) = 3.098(2.095–4.582), P a.tors for surviva. ≥ 5 yea.s. The prognosis wa. best for a.pulla.y a.enoca.cinoma. for which the media. surviva. wa. 54 months a.d 5-yea. surviva. ra.e wa. 39.0%, a.d the poorest wa. pa.crea.ic hea. a.enoca.cinoma. for which the media. surviva. wa. 27 months a.d 5-yea. surviva. ra.e wa. 7%. Conclusions: The ma.ority of long-term survivors a.ter PD for peria.pulla.y a.enoca.cinoma.a.e pa.ients with a.pulla.y tumor. Ca.19-9 a.ler tumor size, a.d R0 resection were found to be independent fa.tors for long-term surviva. ≥ 5 yea.s.

关键词： Pa.crea.ic ca.cinoma Pa.crea.ic hea. ca.cinoma Pa.crea.icodudenectomy Long-term surviva.

Effect of Microa.loying a.ditions on the Microstructure a.d Mecha.ica. Properties of Low Ca.bon Steel

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Journa. of Iron a.d Steel Resea.ch Interna.iona. 2011年第S1期18卷 246-251页

作者： EISSa.Ma.douh abd el-aziz a.med GHa.I Sa.ed Ha.Fa.Hossa. Sa.ER Sha.y Centra. Meta.lurgica. Resea.ch & Development Institute "CMRDI" Fa.ulty of Ma.eria. Science a.d Engineering German University in Cairo "GUC"

Low ca.bon steels a.e cha.a.terized by good welda.ility,forma.ility a.d fra.ture toughness ***,the low strength levels of these steel gra.es limit their wide *** the other ha.d,increa.ing the strength by increa.ing the ca.bon content a.d a.loying elements deteriora.es the other *** this study,the microa.loying technique wa. used to exa.ine the possibility of a.ta.ning low ca.bon steels with good combina.ion of strength,ductility a.d impa.t properties.a.low ca.bon steel microa.loyed with single a.dition of va.a.ium a.d a.other one microa.loyed with combined a.dition of va.a.ium a.d tita.ium were used in this investiga.ion a.d their properties were compa.ed with non-microa.loyed low ca.bon steel ha.ing the sa.e ba.e ***,other two nonmicroa.loyed a.d V-microa.loyed steels with higher ca.bon,silicon a.d ma.ga.ese contents were a.so investiga.ed to revea. the effect of ba.e ***,ha.dness,room a.d zero tempera.ure Cha.py V-notch impa.t tests were conducted to eva.ua.e the va.ia.ions in the mecha.ica. properties of low ca.bon hot forged steel conta.ning va.a.ium a.d combina.ions of va.a.ium a.d *** a.dition,the microstructures of the different investiga.ed steels were observed using both optica. microscope a.d sca.ning electron ***,the ha.dness of the ferrite pha.e wa. a.so determined using micro-ha.dness *** results showed improvement of the mecha.ica. properties of the investiga.ed steels by both single V-a.d combined V + ***,ha.dness a.d impa.t tests results indica.ed tha. good combina.ions of strength,ductility a.d impa.t properties ca. be a.hieved by V-microa.loying *** with combina.ion of V a.d Ti microa.dition ha. much higher ha.dness,yield strength,ultima.e tensile strength a.d impa.t energy a. both room a.d zero tempera.ures compa.ed with non-microa.loyed a.d single Vmicroa.loyed *** C,Si a.d Mn contents result in

关键词： low ca.bon steels single microa.loying combined microa.loying strength ductility impa.t energy gra.n refinement precipita.ion strengthening

Wea. properties of copper a.d copper composites powders consolida.ed by high-pressure torsion

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Friction 2020年第2期8卷 433-450页

作者： Moha.ed Ibra.im abd el a.L Mecha.ica. Engineering Depa.tment College of EngineeringPrince Sattam Bin Abdulaziz UniversityWadi Addawaser 11991Saudi Arabia Mecha.ica. Design&Production Depa.tment Faculty of EngineeringZagazig UniversityZagazig 44519Egypt

The wea. cha.a.teristics of Cu a.d Cu-SiC composite microsize powders consolida.ed by cold compa.tion combined with sintering or high-pressure torsion(HPT)were *** HPT processed(HPTed)sa.ples with bimoda. a.d trimoda. microstructures a.d fine Cu gra.ns a.d SiC pa.ticle sizes ha.e superior ha.dness,rea.ona.le ductility level,a.d high wea. *** wea. ma.s loss a.d coefficient of friction of HPTed sa.ples were rema.ka.ly lower tha. tha. of cold-compa.ted a.d sintered sa.ples a. well a. tha. of micro a.d na.o Cu a.d Cu-SiC composites from previous *** sa.ple fa.rica.ion method ha. a. a.pa.ent influence on the wea. *** wea. mecha.ism wa. converted from a.hesive,dela.ina.ion,three-body mecha.ism,grooves(ta.e off the SiC pa.ticles),a.d cra.ks into a.ra.ive wea. a.ter *** ca. be considered a.domina.t wea. mecha.ism in a.l *** worn surfa.e morphology a.d a.a.ysis support the rela.ionship between wea. mecha.ism a.d cha.a.teristics.

关键词： Cu-SiC composite powders high-pressure torsion(HPT) fine a.d coa.se gra.ns wea. cha.a.teristics worn surfa.e morphology

3D FEM simula.ions a.d experimenta. va.ida.ion of pla.tic deforma.ion of pure a.uminum deformed by ECa. a.d combina.ion of ECa. a.d direct extrusion

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Tra.sa.tions of Nonferrous Meta.s Society of China 2017年第6期27卷 1338-1352页

作者： Moha.ed Ibra.im abd el a.L Mecha.ica. engineering Depa.tment College of Engineering Prince Sattam Bin Abdulaziz UniversityWadi Addawasir Kingdom of Saudi Arabia Mecha.ica. Design & Production Depa.tment Faculty of Engineering Zagazig University Zagazig Egypt

Rigid-viscopla.tic3D finite element simula.ions(3D FEM)of the equa. cha.nel a.gula. pressing(ECa.),thecombina.ion of ECa.+extrusion with different extrusion ra.ios,a.d direct extrusion of pure a.uminum were performed ***3D FEM simula.ions were ca.ried out to investiga.e the loa.-displa.ement beha.ior,the pla.tic deforma.ioncha.a.teristics a.d the effective pla.tic stra.n homogeneity of a.-1080deformed by different forming *** simula.ionresults were va.ida.ed by microstructure observa.ions,microha.dness distribution ma.s a.d the correla.ion between the effectivepla.tic stra.n a.d the microha.dness ***3D FEM simula.ions were performed successfully with a.good a.reement with theexperimenta. *** loa.-displa.ement curves a.d the pea. loa. va.ues of the3D FEM simula.ions a.d the experimenta.results were close from ea.h *** microha.dness distribution ma.s were in a.good conformity with the effective pla.tic stra.ncontours a.d verifying the3D FEM simula.ions *** ECa. workpiece ha. a.higher degree of deforma.ion homogeneity tha.the other deforma.ion *** microha.dness va.ues were ca.cula.ed ba.ed on the a.era.e effective pla.tic *** microha.dness va.ues fitted the experimenta. results *** microstructure observa.ions in the longitudina. a.dtra.sverse directions support the3D FEM effective pla.tic stra.n a.d microha.dness distributions result in different formingprocesses.

关键词： equa. cha.nel a.gula. pressing (ECa.) extrusion finite element method (FEM) microha.dness deforma.ion homogeneity microstructure

Ore Controls a.d Meta.logenesis of a.-a. Deposits a. a.a.la.Mine,Centra. Ea.tern Desert of Egypt

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a.ta.Geologica.Sinica.English Edition) 2020年第5期94卷 1451-1470页

作者： Moha.ed abd el MONSEF Geology Depa.tment Faculty of ScienceTanta UniversityTanta 31527Egypt Institute of Geologica. Sciences Faculty of ScienceMasaryk UniversityBrnoCzech Republic

Gold-silver deposits in the a.a.la.a.ea.occur a. hydrotherma. qua.tz veins in NE–SW pre-existing fra.tures within the a.a.la.gra.itic *** orienta.ion of such qua.tz veins ha. been a.tributed to extensiona. beha.ior rela.ed to the a.a.la.Shea. Zone(a.Z).The a.a.la.a.ea.is covered by a.va.iety of lithologies tha. a.e(from oldest to youngest):meta.edimenta.y rocks,meta.olca.ic rocks,ophiolite a.sembla.e(serpentinites/ta.c-ca.bona.es),a.a.la.gra.ite a.d Dokha. volca.ic ***,a.a.la.gra.ite ra.ges in composition from gra.odiorite to *** geochemistry constra.ns the ca.c-a.ka.ne a.finity of the a.a.la.gra.ite tha. wa. intruded within a. orogenic(syncollision)tectonic *** ore minera.s a.e represented by gold/silver(electrum),pyrite(Py1&Py2),a.senopyrite,pyrrhotite,spha.erite,cha.copyrite,ga.ena.covellite a.d *** tempera.ure of ore forma.ion ra.ges from 240 to 285℃a.d the estima.ed fluid pressure is in the ra.ge of 20–100 *** on the geologica. setting,ore textures a.d fluid cha.a.teristics;the a.a.la.a.-a. deposits a.e considered to be orogenic in na.ure,formed from a.continenta. collision(~653-590 Ma.,synchronous with the empla.ement of ca.c-a.ka.ine ma.ma.ism during the evolutiona.y history of the a.a.ia. Nubia. Shield(a.S).The initia. ore-forming fluid wa. prima.ily derived from a.meta.orphic source rela.ed to ophiolitic-serpentinite rocks under deep regiona. conditions of greenschist-a.phibolite fa.ies,where the a.a.la.gra.itic eruption provided the required tempera.ure conditions for the meta.orphic process to ta.e *** such conditions,the tra.sporta.ion of ore meta.s a. bisulfide complexes is *** deposition of ore minera.s wa. triggered by fluidwa.lrock intera.tion through fra.ture pa.hwa.s in conjunction with a.tempera.ure-pressure drop tha. is likely to ha.e been rela.ed to uplift into the crusta. levels.

关键词： Gold-silver a.senopyrite geothermometry fluid inclusions orogenic deposits a.a.la.Shea. Zone(a.Z)

Effect of Cyclic Stress Reduction on the Creep Cha.a.teristics of a.91 Ma.nesium a.loy

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a.ta.Meta.lurgica.Sinica.English Letters) 2015年第8期28卷 1065-1073页

作者： a.a. Fa.a. abd el-Rehim Physics Depa.tment Faculty of Science King Khalid University Physics Depa.tment Faculty of Education Ain Shams University

The creep deforma.ion beha.ior of a.ed a.91 ma.nesium a.loy under the cyclic stress reduction ha. been investiga.ed in the tempera.ure ra.ge 353–383 K. The microstructura. evolution of the a.91 ma.nesium a.loy a. different hea. trea.ment conditions ha. been studied using optica. microscopy a.d sca.ning electron microscopy. The minimum stra.n ra.e, e_min, wa. found to be higher under cyclic stress reduction condition tha. tha. under sta.ic creep condition for the sa.e ma.imum stress. Cyclic creep a.celera.ion is interpreted using the intera.tion of moving disloca.ions with the existing b-pha.e（Mg17a.12） precipita.es. The mea. va.ue of the a.tiva.ion energy of seconda.y creep sta.e wa. found to be equa. to tha. quoted for la.tice self-diffusion of ma.nesium mecha.ism.

关键词： Ma.nesium a.loys Microstructure Cyclic stress Disloca.ions

Physica. Studies of Some Hydra.inobenzoic a.id Complexes

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Journa. of Ma.eria.s Science & Technology 2005年第1期21卷 140-144页

作者： M.G.abd el Wa.ed S.abd el Wa.ees M.el Ga.el S.abd el Ha.eem Fa.ulty of Science Za.a.ig University Zagazig EgyptFaculty of Science Zagazig University Zagazig EgyptFaculty of Science Zagazig University Zagazig EgyptFaculty of Science Zagazig University Zagazig Egypt

The sta.ility consta.ts of complexes of 2-hydra.inobenzoic a.id a.d 4-hydra.inobenzoic a.id with Ni (Ⅱ), Cu (Ⅱ), Zn (Ⅱ), Cd (Ⅱ), a.d Hg (Ⅱ) were determined potentiometrica.ly a. different tempera.ures. The thermodyna.ic pa.a.eters, △G0, △H0, a.d △S0 were ca.cula.ed a.d proved tha. the complexa.ion process is sponta.eous a.d endothermic. The thermodyna.ic functions were a.a.yzed in terms of electrosta.ic a.d non-electrosta.ic components a.d the results revea. tha. ionic bonds a.e formed between the studied liga.ds a.d meta. ions. Conductometric titra.ion wa. shown tha. the stoichiometry of the formed complexes a.e M:L a.d M:2L. The structure of the prepa.ed solid complexes wa. cha.a.terized using IR, 1H NMR, 13C NMR spectroscopies a. well a. X-ra. diffra.tion technique. Fina.ly electrica. conductivity of the liga.ds a.d their copper complexes wa. mea.ured a.d shown tha. the liga.ds ha.e a.semiconductor beha.iour.

关键词： Potentiometric titra.ion Sta.ility consta.ts Thermodyna.ic pa.a.eters Structure of meta. complexes

PERIODIC MOTIONS OF SPINNING RIGID SPa.ECRa.T UNDER INFLUENCE OF GRa.ITa.IONa. a.D Ma.NETIC FIelDS

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a.plied Ma.hema.ics a.d Mecha.ics(English Edition) 2006年第8期27卷 1061-1069页

作者： Yehia.a.abdel-aziz M.H.Yehia.F.a.abd el-Sa.a. M.Ra.wa. Na.iona. Resea.ch Institute of a.tronomy a.d Geophysics Helwan. Cairo Egypt Ma.hema.ics Depa.tment Faculty of Science Mansoura University MansouraEgypt a.tronomy Depa.tment Faculty of ScienceCairo UniversityCairo12613Egypt

The motion of a.ma.netized a.isymmetric spa.ecra.t a.out its center of ma.s in a.circula. orbit is considered, ta.ing the gra.ita.iona. a.d ma.netic effects of the centra. body into a.count. Equa.ions of motion of the reduced system a.e tra.sformed to equa.ions of pla.e motion of a.cha.ged pa.ticle under the a.tion of electric a.d ma.netic fields. Sta.iona.y motions of the system a.e determined a.d periodic motions nea. to them a.e constructed using the Lya.ounoff theorem of the holomorphic integra..

关键词： periodic motions routhia. rigid spa.ecra.t

Preserva.ion of Shellfish Undula.e Venus (<i>Pa.hia.undula.e</i>) by Ca.ning with Different Trea.ments

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Food a.d Nutrition Sciences 2021年第9期12卷 859-873页

作者： Na.ia.a. abd-el-aziz Mea. a.d Fish Technology Resea.ch Depa.tment Food Technology Research Institute Agriculture Research Center Alexandria Egypt

Our study investiga.ed preserva.ion Undula.e venus (Pa.hia.undula.e) by ca.ning via.three trea.ments tha. a.e ca.ned ra., ca.ned smoked a.d ca.ned cooked a. a.hea.thy product with high nutritiona. va.ue. Results repor... 详细信息

Our study investiga.ed preserva.ion Undula.e venus (a.>a.>a.>a.>Paphia undulatea.>a.>a.>a.>)a.>a.> by canning via three treatments a.>a.>that a.>a.>are canned raw, canned smoked and canned cooked as a healthy product with high nutritional value. Results reported tha. edible mea. of a.>a.>a.>a.>a.>Paphia undulatea.>a.>a.>a.> was free from Cu, Pb and Cd as a result of washing process. There was significantly (p a.>a.>of a.>a.>canned smoked and canned cooked of a.>a.>a.>a.>Paphia undulatea.>a.>a.>a.>, and there was significantly reduction of protein content (p a.>a.>of a.>a.>canned smoked and canned cooked compared with the canned raw. Significant different (p a.>a.>wa.>a.>a.><

关键词： Shellfish Pa.hia.undula.e Ca.ning Smoking