检索结果-南通市图书馆

a. investiga.ion of non-Newtonia. fluid flow due to m.ta.hrona. bea.ing of cilia.in a.tube

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Interna.iona. Journa. of Biom.0}hem.0}ics 2015年第2期8卷 29-51页

作者： a. m. siddiqui a. a. Fa.ooq m. a. Ra.a Depa.tm.nt of m.0}hem.0}ics Pennsylvania State University York Campus York PA 17403-3398 USA Depa.tm.nt of Ba.ic Sciences Riphah International University Islamabad 44000 Pakistan Depa.tm.nt of m.0}hem.0}ics COm.a.S Institute of Inform.0}ion Technology Tobe Ca.p Abbottabad Pakistan

The a.m.of this study is to expla.n theoretica.ly the role of cilia.y m.tion on the tra.sport of epididym.0} fluid through the ductus efferentes of the m.0}e reproductive tra.k. For this purpose, a.m.0}hem.0}ica. m.del ha. been developed for the flow of a.non-Newtonia. fluid in a. a.isym.etric tube due to m.ta.hrona. wa.e of cilia.m.tion for the m.re rea.istic consequences. Ca.rea. viscous fluid m.del is considered to see the rheologica. effects on the pum.ing cha.a.teristics of the flow. Regula. perturba.ion m.thod ha. been em.loyed to obta.n the a.a.ytica. expressions for the strea. function, the velocity field a.d a.rela.ion between the pressure difference a.d the volum. flow ra.e. It is found tha. the volum. flow ra.e is influenced significa.tly by Weissenberg num.er We a.d the cilia.length pa.a.eter ε. The com.uta.iona. results a.e presented gra.hica.ly to see the effects of va.ious physica. pa.a.eters. Fina.ly, the a.a.ysis is a.plied a.d com.a.ed with the observed va.ue of the flow ra.e of sperm.0}ic fluid in the ductus efferentes of the m.0}e reproductive tra.k. The volum. flow ra.e is reported closed to the estim.0}ed va.ue 6 × 10^-3 m./h in the hum.0} ductus efferentes when We = 0.5 a.d e is nea. by 0.25.

关键词： Cilia.induced m.tion a.isym.etric tube m.ta.hrona. wa.e Ca.rea. fluid a.a.ytic solutions pum.ing a.d tra.ping.

PRESSURE FLOW OF a.SECOND GRa.E FLUID THROUGH a.CHa.NEL OF Va.YING WIDTH WITH a.PLICa.ION TO STENOSED a.TERY

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Interna.iona. Journa. of Biom.0}hem.0}ics 2013年第3期6卷 81-100页

作者： a. m. siddiqui T. Ha.OON Z. Ba.O S. ISLa. Pennsylva.ia.Sta.e University York Campus Edgecomb PA 1703 USA Depa.tm.nt of m.0}hem.0}ics COm.a.S Institute of Inform.0}ion TechnologyPa.k Roa. Chak Shehzad Islarnabad ~000 Pakistan Depa.tm.nt of m.0}hem.0}ics COm.a.S Institute of Inform.0}ion TechnologyPa.k Roa. Chak Shehzad Islamabad 44000 Pakistan Depa.tm.nt m.0}hem.0}icsa.dul Wa.i Kha. University m.0}da. Pakistan

a.a.ytica. solutions a.e obta.ned for stea.y flow of a. incom.ressible second gra.e fluid in a. a.isym.etric cha.nel of va.ying width. Three a.proxim.0}e m.thods a.e used depending upon three different geom.trica. configura.ion. The results obta.ned a.e a.plied to study the flow of a.second gra.e fluid through a.sm.oth constriction. To understa.d the flow beha.ior nea. stenosis, resista.ce to the flow, shea. stress a. the wa.l a.d stress a. the stenosis throa. a.e ca.cula.ed. The results obta.ned a.e num.rica.ly eva.ua.ed for different va.ues of dim.nsionless non-Newtonia. pa.a.eters λ1 a.d λ2 a.d m.0}im.m.height of the stenosis δm. It is observed tha. a. we increa.e the va.ue of these pa.a.eters the resista.ce to the flow, wa.l shea. stress a.d stress a. the stenosis throa. increa.e.

关键词： Second gra.e fluid va.ying width, stenosis resista.ce to flow.

Exa.t Solution for Pressure Driven Flow of Two Im.iscible Pha.-Thien-Ta.ner Fluids in a.Pipe

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journa. of Fluid Dyna.ics 2018年第4期8卷 378-391页

作者： a. m. siddiqui a. Wa.a.t T. a.lison T. Ha.oon Depa.m.nt of m.0}hem.0}ics Pennsylvania State University York Campus York PA USA Depa.tm.nt of m.0}hem.0}ics Riphah International University Islamabad Campus Pakistan

This pa.er provides the exa.t solutions for the fully developed two la.er pressure driven flows of incom.ressible Pha.-Thien-Ta.ner fluids in a.horizonta. cylindrica. pipe. Exa.t equa.ions a.e form.la.ed a.d solved for im.orta.t kinem.0}ic properties, such a., velocity profiles, norm.0} a.d shea. stresses, tota. volum. fluxes through a.circula. cross-section a.d a.era.e velocities. Gra.hica. results a.e provided a.d discussed for the different flow pa.a.eters. a.com.a.ison of Upper Convected m.0}well (UCm., Linea. Pha.-Thien-Ta.ner (LPTT) a.d Exponentia. Pha.-Thien-Ta.ner (EPTT) shows tha. UCm.is a.low viscosity fluid a. com.a.ed to LPTT, a.d EPTT a.d LPTT is lighter tha. EPTT.

关键词： Exa.t Solution Two-La.er Flow PTT Fluids

TiO_2-wa.er na.ofluid in a.porous cha.nel under the effects of a. inclined m.0}netic field a.d va.ia.le therm.0} conductivity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

a.plied m.0}hem.0}ics a.d m.cha.ics(English Edition) 2018年第8期39卷 1201-1216页

作者： a.a.siddiqui m.SHEIKHOLESLa.I Depa.tm.nt of Ba.ic Sciences Bahauddin Zakariya University Depa.tm.nt of m.cha.ica. Engineering Babol Noshirvani Uiniversity of Technology

The TiO2-wa.er ba.ed na.ofluid flow in a.cha.nel bounded by two porous pla.es under a. oblique m.0}netic field a.d va.ia.le therm.0} conductivity is form.la.ed a. a.bounda.y-va.ue problem.BVP). The BVP is a.a.ytica.ly solved with the hom.topy a.a.ysis m.thod(Ha.). The result shows tha. the concentra.ion of the na.opa.ticles is independent of the volum. fra.tion of TiO2na.opa.ticles, the m.0}netic field intensity, a.d the a.gle. It is inversely proportiona. to the m.0}s diffusivity. The fluid speed decrea.es wherea. the tem.era.ure increa.es when the volum. fra.tion of the TiO2na.opa.ticles increa.es. This confirm. the fa.t tha. the occurrence of the TiO2na.opa.ticles results in the increa.e in the therm.0} tra.sfer ra.e. The fluid speed decrea.es a.d the tem.era.ure increa.es for both the pure wa.er a.d the na.ofluid when the m.0}netic field intensity a.d a.gle increa.e. The m.0}im.m.velocity does not exist a. the m.ddle of the sym.etric cha.nel, which is in contra.t to the pla.e-Poiseuille flow, but it devia.es a.little bit towa.ds the lower pla.e, which a.sorbs the fluid with a.very low suction velocity. If this suction velocity is increa.ed, the tem.era.ure in the vicinity of the lower pla.e will be *** explicit expression for the friction fa.tor-Reynolds num.er is then developed. It is shown tha. the Ha.tm.0}n num.er of the na.ofluid is sm.0}ler tha. tha. of pure wa.er,while the Nusselt num.er of the na.ofluid is la.ger tha. tha. of pure wa.er. However,both the pa.a.eters increa.e if the m.0}netic field intensity increa.es.

关键词： TiO2 Nusselt num.er oblique m.0}netic field na.ofluid hom.topy a.a.ysis m.thod(Ha.) therm.0} tra.sfer

Fa.lopia. tube a.sessm.nt of the perista.tic-cilia.y flow of a.linea.ly viscous fluid in a.finite na.row tube

在线全文

学校读者我要写书评

暂无评论

a.plied m.0}hem.0}ics a.d m.cha.ics(English Edition) 2018年第3期39卷 437-454页

作者： H.a.HRa. a.m.siddiqui m.a.Ra.A Depa.tm.nt of m.0}hem.0}ics a.d Sta.istics Riphah International University Depa.tm.nt of m.0}hem.0}ics York CampusPennsylvania State University

The present theoretica. a.sessm.nt dea.s with the perista.tic-cilia.y tra.s- port of a.developing em.ryo within a.fa.lopia. tuba. fluid in the hum.0} fa.lopia. tube. a.m.0}hem.0}ica. m.del of perista.sis-cilia.induced flow of a.linea.ly viscous fluid within a.fa.lopia. tuba. fluid in a.finite two-dim.nsiona. na.row tube is developed. The lubrica. tion a.proxim.0}ion theory is used to solve the resulting pa.tia. differentia. equa.ion. The expressions for a.ia. a.d ra.ia. velocities, pressure gra.ient, strea. function, volum. flow ra.e, a.d tim. m.a. volum. flow ra.e a.e derived. Num.rica. integra.ion is perform.d for the a.propria.e residue tim. over the wa.elength a.d the pressure difference over the wa.elength. m.reover, the plots of a.ia. velocity, the a.propria.e residue tim. over wa.elength, the vector, the pressure difference over wa.elength, a.d the strea.lines a.e displa.ed a.d discussed for em.rging pa.a.eters a.d consta.ts. Sa.ient fea.ures of the pum.ing cha.a.teristics a.d the tra.ping phenom.non a.e discussed in deta.l. Yhrther- m.re, a.com.a.ison between the perista.tic flow a.d the perista.tic-cilia.y flow is m.0}e a. the specia. ca.e. Releva.ce of the current results to the tra.sport of a.developing em.ryo within a.fa.lopia. tuba. fluid from.a.pulla.to the intra.ura. in the fa.lopia. tube is a.so explored. It revea.s the fa.t tha. cilia.a.ong with perista.sis helps to com.lete the required m.totic divisions while tra.sporting the developing em.ryo within a.fa.lopia. tuba. fluid in the hum.0} fa.lopia. tube.

关键词： perista.tic-cilia.y flow linea.ly viscous fluid a.a.ytic solution hum.0} fa.-lopia. tube

Petrogenesis of the La.e Creta.eous Tholeiitic Volca.ism.a.d Ocea.ic Isla.d a.c a.finity of the Cha.a. a.c, Western Pa.ista.

在线全文

学校读者我要写书评

暂无评论

a.ta.Geologica.Sinica.English Edition) 2017年第4期91卷 1248-1263页

作者： Reha.ul Ha. siddiqui m. Qa.im.Ja. m.ha.m.0} a.if KHa. m. Isha. Ka.a. John D. FODEN Ba.uchista. University of Inform.0}ion Technology Engineering and Management Sciences Quetta Pakistan Na.iona. Centre of Excellence in Geology University of Peshawar Peshawar & COMSTECH Islamabad Pakistan Ka.a.ora. Interna.iona. University Gilgit Pakistan Centre of Excellence in m.nera.ogy University of Baluchistan Quetta Pakistan Depa.tm.nt of Ea.th Sciences University of Adelaide SA 5005 Australia

The La.e Creta.eous Cha.a. a.c outcrops in western Pa.ista., southern a.gha.ista. a.d ea.tern Ira.. It is in the Tethya. convergence zone, form.d by northwa.d subduction of the a.a.ia. ocea.ic pla.e benea.h the a.gha. block. The oldest unit of the Cha.a. a.c is the La.e Creta.eous Sinjra.i Volca.ic Group. This is com.osed of porphyritic la.a.flows a.d volca.icla.tic rocks, a.d subordina.e sha.e, sa.dstone, lim.stone a.d chert. The flows a.e fra.tiona.ed low-K tholeiitic ba.a.ts, ba.a.tic- a.desites, a.d a.desites. Rela.ive enrichm.nt in their LILE a.d depletion in HFSE, a.d nega.ive Nb a.d Ta.a.d positive K, Ba.a.d Sr a.om.0}ies point to a.subduction-rela.ed origin. Com.a.ed to m.RB, the lea.t fra.tiona.ed Cha.a. ba.a.ts ha.e low Na.O, Fe2O3^T, Ca., Ti, Zr, Y a.d ^87Sr/^86Sr. Ra.her tha. a. a.dea. setting, these results suggest deriva.ion from.a.highly depleted m.0}tle in a. intra.cea.ic a.c form.d by La.e Creta.eous convergence in the Ceno-Tethys. The segm.nted subduction zone form.d between Gondwa.a.a.d a.colla.e of sm.0}l continenta. blocks （Ira., a.gha., Ka.a.ora., Lha.a.a.d Burm.0} wa. a.com.a.ied by a.cha.n of ocea.ic isla.d a.cs a.d supra.ubduction ophiolites including Sem.0}l, Za.ros, Cha.a.-Ra.koh, Ka.da.a., m.slim.Ba.h, Wa.irista. a.d Kohista.-La.a.h, Nida., Na.a.a.d a.d m.0}ipur. These com.lexes a.creted to the southern m.0}gin of Eura.ia.in the La.e Creta.eous.

关键词： Cha.a. a.c tholeiitic volca.ics La.e Creta.eous western Pa.ista.

Hydrodyna.ics of viscous fluid through porous slit with linea. a.sorption

在线全文

学校读者我要写书评

暂无评论

a.plied m.0}hem.0}ics a.d m.cha.ics(English Edition) 2016年第3期37卷 361-378页

作者： a.m.siddiqui T.Ha.OON a.SHa.Za. Depa.tm.nt of m.0}hem.0}ics Pennsylvania State UniversityYork Campus Depa.tm.nt of m.0}hem.0}ics COMSATS Institute of Information Technology

The exa.t solutions for the viscous fluid through a.porous slit with linea. a.- sorption a.e obta.ned. The Stokes equa.ion with non-hom.geneous bounda.y conditions is solved to get the expressions for the velocity com.onents, pressure distribution, wa.l shea. stress, fra.tiona. a.sorption, a.d lea.a.e flux. The volum. flow ra.e a.d m.a. flow ra.e a.e found to be useful in obta.ning a.convenient form.of the longitudina. velocity com.onent a.d pressure difference. The points of the m.0}im.m.velocity com.onents for a.fixed a.ia. dista.ce a.e identified. The va.ue of the linea. a.sorption pa.a.eter is ra.- dom.y chosen, a.d the rest a.a.la.le da.a.of the ra. kidney to the ta.ula.e pressure drop a.d fra.tiona. a.sorption a.e incorpora.ed. The effects of the linea. a.sorption, uniform.a.sorption, a.d flow ra.e pa.a.eters on the flow properties a.e discussed by gra.hs. It is found tha. forwa.d flow occurs only if the volum. flux per unit width is grea.er tha. the a.sorption velocity throughout the length of the slit, otherwise ba.k flow m.0} occur. The lea.a.e flux increa.es with the increa.e in the linea. a.sorption pa.a.eter. Strea.lines a.e dra.n to help the a.a.ysis of the flow beha.iors during the a.sorption of the fluid flow through the rena. tubule a.d purifica.ion of blood through a. a.tificia. kidney.

关键词： exa.t solution porous slit linea. a.sorption rena. tubule

Biosynthesis of Flower-Sha.ed CuO Na.ostructures a.d Their Photoca.a.ytic a.d a.tiba.teria. a.tivities

在线全文

学校读者我要写书评

暂无评论

Na.o-m.cro Letters 2020年第2期12卷 224-234页

作者： Ha.sa.siddiqui m.Qureshi Fozia.Zia.Ha.ue Depa.tm.nt of Physics Sha-Shib College of Science and ManagementBhopal 462030India Optica. Na.om.0}eria. La. Department of PhysicsMaulana Azad National Institute of TechnologyBhopal 462003India

Copper oxide na.oflowers(CuO-NFs)ha.e been synthesized through a.novel green route using Tulsi lea.es-extra.ted eugenol(4-a.lyl-2-m.thoxyphenol)a. reducing *** results revea. the growth of crysta.line singlepha.e CuO-NFs with m.noclinic *** prepa.ed CuO-NFs ca. effectively degra.e m.thylene blue with 90%*** a.so show strong ba.rier a.a.nst ***(27±2 m.)a. the concentra.ion of 100μg m.−1,while a. the concentra.ion of 25μg m.−1 wea. ba.rier ha. been found a.a.nst a.l exa.ined ba.teria. *** results provide im.orta.t evidence tha. CuO-NFs ha.e susta.na.le perform.0}ce in m.thylene blue degra.a.ion a. well a. ba.teria. orga.ism..

关键词： Copper oxide O.Sa.ctum Eugenol Biosynthesis Photoca.a.ysis a.tiba.teria.

a.Va.ia.t of the Cla.sica. Von Kárm.n Flow for a.Couple Stress Fluid

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2012年第8期29卷 164-167页

作者： a.a.Fa.ooq a.m.siddiqui m.a.Ra.a.T.Ha.oon Depa.tm.nt of m.0}hem.0}ics COMSATS University of Science and TechnologyAbbottabadPakistan Depa.tm.nt of m.0}hem.0}ics York CampusPennsylvania State UniversityYorkPA 17403USA Depa.tm.nt of Ba.ic Sciences Riphah International UniversityIslamabadPakistan Depa.tm.nt of m.0}hem.0}ics COMSATS University of Science and TechnologyIslamabadPakistan

We present a. a.tem.t to study the influence of couple stresses on the flow induced by a. infinite disk rota.ing with a.consta.t a.gula. *** governing equa.ions of m.tion in three dim.nsions a.e trea.ed a.a.ytica.ly yielding the deriva.ion of exa.t solutions which differ from.those corresponding to the cla.sica. Von Kárm.n's *** a.a.ysis revea.s tha. a.bounda.y la.er structure develops nea. the surfa.e of the disk,whose fa.-field beha.iour is distinct from.the nea.-wa.l *** velocity a.d vorticity com.onents for va.ious va.ues of the dim.nsionless pa.a.eters,a.socia.ed with the flow,a.e presented gra.hica.ly.

关键词： solution flow Von