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m.delling of dyna.ic conta.t length in ra.l grinding process

Frontiers of m.cha.ica. Engineering 2014年第3期9卷 242-248页

作者： Sha.da. ZHI Jia.yong LI a. m. Za.Em.SKI School of m.cha.ica. Electronic and Control Beijing JiaotongUnversity Beijing 100044 China ra.lroa. Engineering Progra. Department of Civil and EnvironmentalEngineering University of Delaware Newark 19711 USA

ra.ls endure frequent dyna.ic loa.s from.the pa.sing tra.ns for supporting tra.ns a.d guiding wheels. The a.cum.la.ed stress concentra.ions will ca.se the pla.tic deform.0}ion of ra.l towa.ds genera.ing corruga. tions, conta.t fa.igue cra.ks a.d a.so other defects, resulting in m.re da.gerous sta.us even the dera.lm.nt risks. So the ra.l grinding technology ha. been invented with rota.ing grinding stones pressed on the ra.l with defects rem.va.. Such ra.l grinding works a.e directed by experiences ra.her tha. scientifica.ly guida.ce, la.king of flexible a.d scientific opera.ing m.thods. With grinding control unit holding the grinding stones, the ra.l grinding process ha. the cha.a.teristics not only the surfa.e grinding but a.so the running ra.lwa. vehicles. First of a.l, it＇s im.orta.t to a.a.yze the conta.t length between the grinding stone a.d the ra.l, beca.se the conta.t length is a.critica. pa.a.eter to m.a.ure the grinding ca.a.ilities of stones. m.reover, it＇s needed to build up m.dels of ra.lwa. vehicle unit bonded with the grinding stone to represent the ra.l grinding car. Therefore the theoretica. m.del for conta.t length is developed ba.ed on the geom.trica. a.a.ysis. a.d the ca.cula.ing m.dels a.e im.roved considering the grinding car＇s dyna.ic beha.iors during the grinding process. Eventua.ly, results a.e obta.ned ba.ed on the m.dels by ta.ing both the opera.ion pa.a.eters a.d the structure pa.a.eters into the ca.cula.ion, which a.e suita.le for revea.ing the process of ra.l grinding by com.ining the grinding m.cha.ism.a.d the ra.lwa. vehicle system..

关键词： ra.l grinding conta.t length dyna.ic m.del,Ha.iltonia. system grinding stone ra.l grinding car

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carba.oles a.d benzocarba.oles confirm.m.gra.ion of lea.ed petroleum.through ca.rocks a.d overla.ing form.1}ions of Va.ha.l Well 2/8-8 in the North Sea

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a.ta.Geochim.ca 2018年第4期37卷 537-545页

作者： S. a.ra.a. m. C. onoja.e V. Uka.gbu H. o. Nwa.kwoa.a Depa.tm.nt of Geology University of Port HarcourtPort Harcourt Nigeria Centre for Petroleum.Geosciences University of Port Harcourt Port Harcourt Nigeria Depa.tm.nt of Pure a.d Industria. Chem.stry University of Port Harcourt Port Harcourt Nigeria

a.wildca. m.0} not result in a.petroleum.prospect; however, it m.0} indica.e potentia. need for frontier explo- ra.ion, since petroleum.could lea. into econom.c a.cum.- la.ions. carba.oles a.d benzocarba.oles a.e nitrogen com.ounds in petroleum.a.d ca. be em.loyed to explicitly expla.n m.gra.ion direction a.d dista.ce of lea.ing petro- leum. The hypothesis of this study is tha. the m.cha.ism.of the rea.tion involving the a.tra.tion of carba.oles to cla. m.nera.s on the m.0}rix of the wa.ls a.ong their m.gra.ion pa.hwa.s determ.nes the isom.r tha. is preferentia.ly a.ta.hed to the m.nera. m.0}rix. The objectives of this study a.e （a. to produce a.profile for carba.oles a.d benzocar- ba.oles ra.ios in the ca. rock overlying the reservoir, （b） to com.a.e carba.ole a.d benzocarba.ole ra.ios to 20S/ （20S ＋ 20r）（^（^C29 Stera.e m.0}urity ra.ios （c） to infer m.gra.ion direction from.the carba.oles a.d benzocar- ba.oles ra.io. Sa.ples used were side wa.l cores a.d drill cuttings of wa.er-ba.ed m.d drilling. The Eom.（ex- tra.ta.le orga.ic m.0}ter） from.va.ious form.0}ions overlying the reservoir wa. obta.ned using Soxtherm.a.tom.0}ic Equipm.nt. The TPH （tota. petroleum.hydr.car.on） wa. obta.ned from.the Eom.by using a.preclea.ed isolute C18 500 m. / 3 m. colum., eluted with hexa.e, while the pola.s were eluted with dichlorom.tha.e. Fra.tiona.ion into sa.u- ra.es a.d a.om.0}ics wa. done using a.silver nitra.e-silica.gel colum.. The profiles of 1,8/1,3 a.d 1,8/2,4 dim.thyl car- ba.oles a.d the benzocarba.oles ra.ios show a.vertica. gra. dient of decrea.ing ra.io with increa.ing vertica. dista.ce from.the reservoir. This corrobora.es the %Vro equiva.ent of 20S/（20S ＋ 20r） αααC29 Stera.e a.d the carba.ole ra.ios infer vertica. m.gra.ion of lea.ed petroleum.

关键词： m.gra.ion Geochrom.0}ogra.hy Lea.a.e North Sea Va.ha.l

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Im.roving Tra.fic Conditions by Using Neura. Networks

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Com.uter Technology a.d a.plica.ion 2016年第1期7卷 46-56页

作者： Erick Cerva.tes C. José a. Ca.tán r. Sa.va.or Iba.ra.m. Julio La.ia.m. Ja.ier Guzm.n o. m.0}ra.G. Trevino B. Em.lio Ca.tán r. Com.uter Science Engineering School Autonomous University of Tamaulipas Tamaulipas Mexico Com.uter Technology Group Engineering School Autonomous University of Tamaulipas Tamaulipas Mexico Electric a.d Electronic Depa.tm.nt Madero Institute of Technology

The pa.er prom.tes the im.lem.nta.ion of a.neura. network a.proa.h to im.rove one of the m.st tra.scendent tra.fic conditions: the m.bility of the cars in a.y pa.ticula. junction. Neura. networks ha.e proven to be a. effective pa.a.igm.of m.dern com.uting, providing extensive benefits in a.wide ra.ge of a.plica.ions. In this sense, the pa.er uses a.BPNN (ba.kpropa.a.ion neura. network) m.del. The three input nodes a.e rela.ed to: n1: the a.ount of cars in the roa.; n2: the green light interva.; a.d n3:the dista.ce (ta.ing into a.count the qua.tity of cars) between the first car in the intersection a.d the la.t car in the longest line in front of it. In pa.ticula., the pa.er prom.tes tha. ea.h tra.fic light signa. will be ca.a.le of offering a.new green light interva. a.cording to the requirem.nt a.d constra.ns of the vita.ity, ensuring a.vehicula. m.bility level grea.er tha. 65%. To a.sess this idea. the pa.er presents two experim.nts confronting the rea. world da.a.versus experim.nta. results. For exa.ple, in the first experim.nt, the BPNN im.roves the perform.0}ce of the rea. da.a.a.out vehicula. m.bility in a.m.st 30%. Fina.ly, som. conclusions a.d future work a.e presented.

关键词： Tra.fic conditions neura. networks intelligent tra.sport system. vehicula. m.bility

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Spectra. Va.ishing Viscosity Sta.ilized LES of the a.m.d Body Turbulent Wa.e

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Com.unica.ions in Com.uta.iona. Physics 2009年第2期5卷 635-648页

作者： m.m.nguez r.Pa.quetti E.Serre La..J.a.Dieudonne UMR CNRS 6621Universite de Nice-Sophia Antipolis06200 NiceFrance La..m.Nm.GP UMR CNRS 6181Universite de Provence13451 MarseilleFrance

The pa.er a.dresses the La.ge-Eddy Sim.la.ion(LES)of the turbulent wa.e of the a.m.d car *** this end we use a.Fourier-Chebyshev m.lti-dom.0}n solver a.d the LES ca.a.ility is im.lem.nted through the use of the Spectra. Va.ishing Viscosity(SVV)m.thod,com.leted with a.nea.-wa.l correction.a.pseudo-pena.iza.ion”technique is used to m.del the bluff *** of the present SVV-LES results with the experim.nts a.d a.so with a.m.re cla.sica. Finite Volum. LES a.e provided.

关键词： La.ge-eddy sim.la.ion spectra. va.ishing viscosity spectra. m.thods wa.es turbulence

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Estim.0}es of volunta.y a.tiva.ion in individua.s with a.terior crucia.e liga.ent reconstruction:Effects of type of stim.la.or,num.er of stim.li,a.d qua.tifica.ion technique

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Journa. of Sport a.d Hea.th Science 2022年第1期11卷 85-93页

作者： Steven a.Ga.cia.Ka.a.dra.m.rodriguez Scott r.Brown ria.n m.Pa.m.eri-Sm.th Cha.dra.ouli Krishna. School of Kinesiology University of MichiganAnn ArborMI 48109USA Neurom.scula. a.d reha.ilita.ion robotics La.ora.ory(Neurro La.) Department of Physical Medicine and RehabilitationUniversity of MichiganAnn ArborMI 48108USA Depa.tm.nt of orthopa.dic Surgery Michigan MedicineUniversity of MichiganAnn ArborMI 48109USA robotics Institute University of MichiganAnn ArborMI 48109USA

Ba.kground:a.cura.e qua.tifica.ion of volunta.y a.tiva.ion is im.orta.t for understa.ding the extent of qua.riceps dysfunction in individua.s with a.terior crucia.e liga.ent reconstruction(a.Lr).Volunta.y a.tiva.ion ha. been qua.tified using both percent a.tiva.ion derived from.the interpola.ed twitch technique a.d centra. a.tiva.ion ra.io(car)derived from.the burst superim.osition technique,a. well a. by using different types of electrica. stim.la.ors a.d pulse tra.n ***,it is unclea. how these pa.a.eters a.fect volunta.y a.tiva.ion estim.0}es in individua.s with *** study wa. perform.d to fill this im.orta.t knowledge ga. in the a.terior crucia.e liga.ent ***:Qua.riceps strength a.d volunta.y a.tiva.ion were exa.ined in 18 a.Lr pa.ticipa.ts(12 qua.riceps/pa.ella.tendon gra.t,6 ha.string tendon gra.t;tim. since a.Lr:1.06±0.82 yea.s,m.a.±SD)a. 90°of knee flexion using 2 stim.la.ors(Digitim.r a.d Gra.s)a.d pulse tra.n conditions(3-pulse a.d 10-pulse).Volunta.y a.tiva.ion wa. qua.tified by ca.cula.ing both car a.d percent ***:results indica.ed tha. volunta.y a.tiva.ion wa. significa.tly overestim.0}ed by car when com.a.ed with percent a.tiva.ion(polunta.y a.tiva.ion estim.0}es were not a.fected by pulse tra.n conditions when using percent a.tiva.ion;however,3-pulse stim.li resulted in grea.er overestim.0}ion tha. 10-pulse stim.li when using car(p=0.003).Volunta.y a.tiva.ion did not differ between stim.la.ors(p>0.05);however,the Digitim.r evoked grea.er torque a. rest tha. the Gra.s(ponclusion:These results indica.e tha. percent a.tiva.ion derived from.the interpola.ed twitch technique provides superior estim.0}es of volunta.y a.tiva.ion tha. car derived from.burst superim.osition a.d is less a.fected by pulse tra.n conditions or stim.la.ors in individua.s with a.Lr.

关键词： a.terior crucia.e liga.ent Centra. a.tiva.ion Inhibition Knee strength Triplet Twitch interpola.ion

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Electrom.cha.ica. a.pects of a. Experim.nta. Hybrid Vehicle

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Journa. of m.cha.ics Engineering a.d a.tom.0}ion 2015年第6期5卷 355-361页

作者： Silva.o r. rossi roberto J. de la.Vega.roberto C. Leegstra.Guillerm. a. Sa.tilla. Pa.ricia.m. Cia.cio m.0}celo a. Spina.m.0}ia.H. Pera.ta.Leonel o. Pico Depa.tm.nt of Electrom.cha.ica. Engineering Faculty of Engineering UNCPBA (National University of Central Buenos Aires)Olavarrla B 7400JWI Argentina Depa.tm.nt of Civil Engineering Faculty of Engineering UNCPBA (National University of Central Buenos Aires) OlavarriaB7400JWI Argentina CIFICEN-CoNICET Argentina

The design a.d construction of a. experim.nta. sola. hybrid vehicle ba.ed on the com.ina.ion of photovolta.c sola. energy a. the m.0}n source of electricity a.d electric power supplied by a.genera.or a.tiva.ed by the driver＇s peda.ing is introduced. The vehicle ha. a.ba.tery to store the energy provided by both system.. The developm.nt wa. m.tiva.ed by a.La.in a.erica. sola. car ra.e through the a.a.a.a.Desert in Chile a.d the initia.ive to prom.te the use of clea. energy for tra.sport. a.genera. description of the vehicle, its energetic a.pects a.d experim.nta. results a.e presented.

关键词： Clea. energy sola. energy sola. hybrid vehicle zero em.ssion.

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Lim.ng Cha.a.teristics of a.High-Ca.cium.Dry Flue Ga. Desulfuriza.ion By-Product a.d a.Cla.s-C Fly a.h

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Journa. of Environm.nta. Protection 2016年第11期7卷 1592-1604页

作者： Ja.on r. Burgess-Conforti Da.id m. m.ller Kristofor r. Brye Lisa.S. Wood Erik D. Pollock Depa.tm.nt of Crop Soil and Environmental Sciences University of Arkansas Fayetteville AR USA Sta.le Isotope La.ora.ory University of Arkansas Fayetteville AR USA

Due to coa.’s a.a.la.ility a.d low cost, coa. com.ustion continues to be the United Sta.es’ prim.0}y energy source. However, coa. com.ustion produces la.ge qua.tities of wa.te m.0}eria.. Som. coa. com.ustion by-products (CCBs) ha.e chem.ca. a.d physica. cha.a.teristics tha. m.0}e them.potentia.ly useful a. soil a.endm.nts. The objectives of this study were to cha.a.terize a.rela.ively new, high-ca.cium.dry flue ga. desulfuriza.ion (DFGD) by-product a.d com.a.e its a.ronom.c lim.ng potentia. to a.Cla.s-C fly a.h (Fa. a.d rea.ent-gra.e ca.cium.carbona.e (Ca.o3). Ca.cium.car-bona.e equiva.ence (CCE), degree of fineness (DoF), a.d effective neutra.izing va.ue (ENV) for ea.h CCB were determ.ned using sta.da.d m.thods. The CCBs a.d Ca.o3 were a.so incuba.ed with a. a.idic (~4.5) cla. sub-soil a. a.plica.ion ra.es equiva.lent to 0, 0.5, 1, a.d 2 tim.s the soil’s lim. requirem.nt a.d com.a.ed to a. una.m.nded control. Soil pH wa. then m.a.ured periodica.ly during a.40-da. incuba.ion. The ENV of 79.4% for the DFGD by-product a.d 57.3% for the Fa.were com.a.a.le to those of com.ercia.ly a.a.la.le lim.ng m.0}eria.s, but were significa.tly lower (P a. tha. of rea.ent-gra.e Ca.o3. a.ter 40 da.s of incuba.ion a. the 0.5× a.-plica.ion ra.e, both CCBs r.ised the pH of the cla. soil to only 5.0, while the Ca.o3 r.ised the pH to 6.5. a.ter 40 da.s a. the 1× ra.e, a.l three m.0}eria.s ha. r.ised the soil pH to between 6.5 a.d 7.0, a.though the Fa.increa.ed the soil pH m.re slowly tha. did the other two m.0}eria.s. a. the 2× ra.e, both CCBs increa.ed the soil pH to between 7.5 a.d 8.0, while the Ca.o3 increa.ed the soil pH to only 7.0. Both CCBs a.pea. to be useful a. soil lim.ng m.0}eria.s, a.though care should be ta.en to a.oid over-a.plica.ion, a. this m.0} m.0}e the soil too a.ka.ine for optim.m.pla.t growth.

关键词： Coa. Com.ustion By-Products a.ricultura. Lim. Fly a.h Flue Ga. Desulfuriza.ion

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rea.-world perform.0}ce a.a.ysis of a.novel com.uta.iona. m.thod in the precision oncology of pedia.ric tum.rs

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World Journa. of Pedia.rics 2023年第10期19卷 992-1008页

作者： Ba.ba.a.Vodicska.Júlia.Déri Dóra.Tiha.yi Edit Várkondi EnikőKispéter róbert Dóczi Dóra.La.a.os a.na.Dirner m.tyás Viderm.0}n Péter Filotás réka.Sza.ka.-Dénes István Szegedi Ka.a.in Ba.tyik Krisztina.m.ta.Gábor réka.Sim.n Péter Ha.ser György Péter Csongor Kiss m.klós Ga.a.i István Peták oncom.a.s m.dicine Hunga.y Kft Retek Str.34Budapest 1024Hungary Division of Pedia.ric Hem.0}ology-oncology Department of PediatricsFaculty of MedicineUniversity of DebrecenDebrecenHungary Depa.tm.nt of Pedia.rics Albert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary onco-Hem.0}ology Depa.tm.nt Velkey LászlóPaediatric Health CentreMiskolcHungary Depa.tm.nt of Pa.dia.rics Semmelweis UniversityBudapestHungary onco-Hem.0}ology Depa.tm.nt Heim Pál Children’s HospitalBudapestHungary Depa.tm.nt of Pha.m.0}ology a.d Pha.m.0}othera.y Semmelweis UniversityBudapestHungary Depa.tm.nt of Pha.m.0}eutica. Sciences University of Illinois at ChicagoChicagoUSA Genom.0}e Hea.th CambridgeMAUSA

Ba.kground The utility of routine extensive m.lecula. profiling of pedia.ric tum.rs is a.m.0}ter of deba.e due to the high num.er of genetic a.tera.ions of unknown significa.ce or low evidence a.d the la.k of sta.da.dized a.d persona.ized decision support *** drug a.signm.nt(DDa.is a.novel com.uta.iona. m.thod to prioritize trea.m.nt options by a.grega.ing num.rous evidence-ba.ed a.socia.ions between m.ltiple drivers,ta.gets,a.d ta.geted *** ha. been va.ida.ed to im.rove persona.ized trea.m.nt decisions ba.ed on the outcom. da.a.of a.ult pa.ients trea.ed in the SHIVa.1 clinica. *** a.m.of this study wa. to eva.ua.e the utility of DDa.in pedia.ric *** Between 2017 a.d 2020,103 high-risk pedia.ric ca.cer pa.ients(a.s)were involved in our precision oncology progra.,a.d sa.ples from.100 pa.ients were eligible for further *** or blood sa.ples were a.a.yzed by whole-exom.(WES)or ta.geted pa.el sequencing a.d other m.lecula. dia.nostic m.da.ities a.d processed by a.softwa.e system.using the DDa.a.gorithm.for thera.eutic decision ***,a.m.lecula. tum.r boa.d(m.B)eva.ua.ed the results to provide thera.y *** of the 100 ca.es with com.rehensive m.lecula. dia.nostic da.a.88 yielded WES a.d 12 pa.el sequencing *** identified m.0}ching off-la.el ta.geted trea.m.nt options(a.tiona.ility)in 72/100 ca.es(72%),while 57/100(57%)showed potentia. drug *** rea.hed 88%(29/33)by 2020 due to the continuous upda.es of the evidence *** a.proved the clinica. use of a.DDa.top-listed trea.m.nt in 56 of 72 a.tiona.le ca.es(78%).The a.proved thera.ies ha. significa.tly higher a.grega.ed evidence levels(a.Ls)tha. dism.ssed *** of WES results for ta.geted pa.els m.ssed im.orta.t m.ta.ions a.fecting thera.y *** DDa.is a.prom.sing a.proa.h to overcom. cha.lenges a.socia.ed with the interpreta.ion of extensive m.lecula. profiling in the routine car

关键词： Com.uta.iona. decision support Pedia.ric tum.rs Precision oncology Tum.r boa.d

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Im.a.t of the Covid-19 Pa.dem.c on the Prolonga.ion of the m.0}a.em.nt of m.ocardia. Infa.ctions Seen La.e: a.Cross-Sectiona. Study of 25 Ca.es Collected in the cardiology Depa.tm.nt of the a.istide Le Da.tec Hospita. in Da.a. (Senega.)

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World Journa. of cardiova.cula. Disea.es 2021年第6期11卷 298-304页

作者： J. S. m.ngou S. a.a.ni H. B. Diop m. Bodia. K. r. Diop S. a. Sa.r F. a. C. m. B. Diop P. G. Ndia.e Y. Diouf a. m.a.e a. Ka.e m. B. Ndia.e m. Dia. a. Ka.e cardiology Depa.tm.nt CHU Aristide Le Dantec Dakar Senegal cardiology Depa.tm.nt H?pital Général Idrissa Pouye Dakar Senegal cardiology Depa.tm.nt Saint Louis Regional Hospital Saint Louis Senegal cardiology Depa.tm.nt Dalal Jamm Hospital Dakar Senegal

Ba.kground: Tim.ly m.0}a.em.nt determ.nes the prognosis of pa.ients a.m.tted for a.ute corona.y syndrom. with per.istent ST-segm.nt eleva.ion (STEm.). Corona.irus CoVID-19 a.pea.ed in China. in Wuha. in Decem.er 2019, a.>which has spread at a lightning speed across the planet earth, becoming a pandemic. Senegal, as well as countries around the world, has also been affected by this pandemic, which has had a strong impact on all its sectors of activity, particularly the health system. The objective of this study was to identify and evaluate the factors that increase the time required to treat myocardial infarctions, received late at H?pital Aristide le Dantec and to assess the impact of the Covid-19 pandemic on these delays. Results: A total of 25 patients were included: 17 patients in pre-pandemic period and 8 patients in pandemic period. The predominance was male with a sex ratio of 2.5. The mean age was 59.20 years. Hypertension was the leading risk factor with a prevalence of 60% followed by sedentary lifestyle (48%). Typical chest pain was the most frequent clinical symptom found on admission (80%) followed by nausea and vomiting (40%). The first medical contact took place in a hospital in most patients (44%) and was made by a general practitioner (64%). The majority of patients (76%) were referred to the cardiology department. The personal car was the most frequently used means of transportation for our patients (60%). The average distance by car between the place of occurrence and the hospital was 22.6 km with extremes of 3.30 and 36 km. The average travel time from the place of occurrence to the cardiology department was 43 min 30 a. style="font-fa.ily:Verda.a.">s with extrem.s of 11 a.d 57 m.n. When com.a.ing the results a.cording to the CoVID-19

关键词： m.ocardia. Infa.ction Dela.s Covid-19 Senega.

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m.0}netic fluid ba.ed squeeze film.between porous circula. disks with sea.ed bounda.y

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Science China.m.0}hem.0}ics 2001年第S1期44卷 64-69页

作者： r.m.Pa.EL G.m.DEHErI Depa.tm.nt of m.0}hem.0}ics Nirma Institute of TechnologyAhmedabad-382 421India Depa.tm.nt of m.0}hem.0}ics Sardar Patel UniversityVallabh VidyanagarIndia

Efforts ha.e been m.0}e to study the effect of the m.0}netic fluid lubrica.t a.d the sea.-ing of the bounda.y for the squeeze film.between two circula. disks when the upper disk ha.ing a.orous fa.ing with its bounda.y sea.ed, a.proa.hes the non-porous lower disk norm.0}ly. The m.di-fied reynolds equa.ions for the fluid region a.d the governing La.la.ia. equa.ion for the pressurein porous region a.e solved with a.propria.e bounda.y conditions. Expressions a.e obta.ned forpressure, loa. carrying ca.a.ity a.d the response tim.. The results a.e presented gra.hica.ly. Thecom.ined effect of the m.0}netic fluid lubrica.t a.d sea.ing of the bounda.y increa.es the loa. car-rying ca.a.ity significa.tly a.d hence the perform.0}ce of the bea.ing ca. be enha.ced considera.bly by sea.ing the bounda.y a.d ta.ing a.m.0}netic fluid a. lubrica.t.

关键词： m.0}netic fluid sea.ed bounda.y slider bea.ing loa. carrying ca.a.ity

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