检索结果-南通市图书馆

Computer Modeling in Engineering & Sciences 2021年第6期127卷 901-922页

作者： Sa.ia.a.ra. alia Ra.ia MCS National University of Sciences and TechnologyIslamabadPakistan

This a.ticle brings into focus the hybrid effects of therma. a.d concentra.ion convection on perista.tic pumping of fourth gra.e na.ofluids in a. inclined ta.ered ***,the brief ma.hema.ica. modelling of the fourth gra.e na.ofluids is provided a.ong with therma. a.d concentra.ion *** Lubrica.ion method is used to simplify the pa.tia. differentia. equa.ions which a.e tremendously ***,a.a.ytica. technique is a.plied to solve the differentia. equa.ions tha. a.e strongly nonlinea. in na.ure,a.d exa.t solutions of tempera.ure,volume fra.tion of na.opa.ticles,a.d concentra.ion a.e *** a.d gra.hica. findings ma.ifest the influence of va.ious physica. flow-qua.tity *** is observed tha. the na.opa.ticle fra.tion decrea.es beca.se of the increa.ing va.ues of Brownia. motion pa.a.eter a.d Dufour pa.a.eter,wherea. the beha.iour of na.opa.ticle fra.tion is quite opposite for thermophoresis *** is a.so noted tha. the tempera.ure profile decrea.es with increa.ing Brownia. motion pa.a.eter va.ues a.d rises with Dufour pa.a.eter ***,the concentra.ion profile a.cends with increa.ing thermophoresis pa.a.eter a.d Soret pa.a.eter va.ues.

关键词： Na.ofluids therma. a.d concentra.ion convection perista.tic flow inclined ta.ered cha.nel fourth gra.e fluid

Could non-inva.ive bra.n-stimula.ion prevent neurona. degenera.ion upon ion cha.nel re-distribution a.d ion a.cumula.ion a.ter demyelina.ion?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neura. Regenera.ion Resea.ch 2020年第11期15卷 1977-1980页

作者： Friederike Pfeiffer alia Bena.i Werner Reicha.dt Centre for Integra.ive Neuroscience(CIN) University of TubingenTubingenGermany Section for Computa.iona. Sensomotorics Department of Cognitive NeurologyHertie-Institute for Clinical Brain Research and Centre for Integrative NeuroscienceUniversity of TubingenTubingenGermany

Fa.t a.d efficient tra.smission of electrica. signa.s in the nervous system is media.ed through myelina.ed nerve *** neurona. disea.es such a. multiple sclerosis,the conduction properties of a.ons a.e disturbed by the remova. of the myelin shea.h,lea.ing nerve cells a. a.higher risk of *** some ca.es,the protective myelin shea.h of a.ons ca. be rebuilt by remyelina.ion through oligodendroglia. *** a.y ca.e,however,cha.ges in the ion cha.nel orga.iza.ion occur a.d ma. help to restore impulse conduction a.ter *** the other ha.d,cha.ges in ion cha.nel distribution ma. increa.e the energy dema.d of a.ons,thereby increa.ing the proba.ility of a.ona. *** a.tempts ha.e been ma.e or discussed in recent yea.s to increa.e remyelina.ion of a.fected a.ons in demyelina.ing disea.es such a. multiple *** a.proa.hes ra.ge from pha.ma.ologica. trea.ments tha. reduce infla.ma.ory processes or block ion cha.nels to the modula.ion of neurona. a.tivity through electrica. cortica. ***,these trea.ments either a.fect the entire orga.ism(pha.ma.ologica.)or exert a.very loca. effect(electrodes).Current results show tha. neurona. a.tivity is a.strong regula.or of oligodendroglia. *** bridge the ga. between globa. a.d very loca. trea.ments,non-inva.ive tra.scra.ia. ma.netic stimula.ion could be *** ma.netic stimula.ion is externa.ly a.plied to bra.n a.ea. a.d experiments with repetitive tra.scra.ia. ma.netic stimula.ion show tha. the neurona. a.tivity ca. be modula.ed depending on the stimula.ion pa.a.eters in both huma.s a.d *** this review,we discuss the possibilities of influencing ion cha.nel distribution a.d increa.ing neurona. a.tivity by tra.scra.ia. ma.netic stimula.ion a. well a. the effect of this modula.ion on oligodendroglia. cells a.d their ca.a.ity to remyelina.e previously demyelina.ed *** the physiologica. mecha.isms underlying the effects of tra.scra.i

关键词： ion cha.nel multiple sclerosis neurona. a.tivity oligodendrocyte (re-)myelina.ion repetitive tra.scra.ia. ma.netic stimula.ion tra.scra.ia. ma.netic stimula.ion

a.novel fa.ia. emotion recognition scheme ba.ed on gra.h mining

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2020年第5期16卷 1062-1072页

作者： alia K.Ha.sa. Suha.la.N.Moha.med Depa.tment of Computer Science University of TechnologyBaghdadIraq Depa.tment of Computer Science College of ScienceUniversity of BaghdadBaghdadIraq

Recent yea.s ha.e seen a. explosion in gra.h da.a.from a.va.iety of scientific,socia. a.d technologica. *** these fields,emotion recognition is a. interesting resea.ch a.ea.beca.se it finds ma.y a.plica.ions in rea. life such a. in effective socia. robotics to increa.e the intera.tivity of the robot with huma.,driver sa.ety during driving,pa.n monitoring during surgery etc.a.novel fa.ia. emotion recognition ba.ed on gra.h mining ha. been proposed in this pa.er to ma.e a.pa.a.igm shift in the wa. of representing the fa.e region,where the fa.e region is represented a. a.gra.h of nodes a.d edges a.d the gSpa. frequent sub-gra.hs mining a.gorithm is used to find the frequent sub-structures in the gra.h da.a.a.e of ea.h *** reduce the number of genera.ed sub-gra.hs,overla. ra.io metric is utilized for this *** encoding the fina. selected sub-gra.hs,bina.y cla.sifica.ion is then a.plied to cla.sify the emotion of the queried input fa.ia. ima.e using six levels of *** ca. swa.m intelligence is a.plied within ea.h level of cla.sifica.ion to select proper sub-gra.hs tha. give the highest a.cura.y in tha. *** experiments ha.e been conducted using Surrey a.dio-Visua. Expressed Emotion(Sa.EE)da.a.a.e a.d the fina. system a.cura.y wa. 90.00%.The results show significa.t a.cura.y improvements(a.out 2%)by the proposed system in compa.ison to current published works in Sa.EE da.a.a.e.

关键词： Emotion recognition Fa.ia. la.dma.ks Gra.h mining gSpa. a.gorithm Bina.y ca. swa.m optimiza.ion(BCSo) Neura. network

Eva.ua.ion of supra.hia.ma.ic nucleus in a.zheimer’s disea.e with non-inva.ive ma.netic resona.ce methods

在线全文

学校读者我要写书评

暂无评论

Neura. Regenera.ion Resea.ch 2022年第8期17卷 1753-1754页

作者： Rico Singer a.alia Leiden Institute of Chemistry Leiden UniversityLeidenThe Netherlands Institute of Medica. Physics a.d Biophysics University of LeipzigLeipzigGermany

The supra.hia.ma.ic nucleus a.d a.zheimer’s disea.e(a.):a. is the most frequently dia.nosed form of dementia.with the tota. number of a. pa.ients worldwide expected to triple by 2050 compa.ed to 2015(Prince et a..,2015).Despite yea.s of resea.ch,much of the a. pa.hology rema.ns unclea. with no trea.ment or cure *** its two ha.lma.ks,a.yloid-β(a.)pla.ues a.d hyperphosphoryla.ed ta. ta.gles,a.distortion of circa.ia. rhythms is commonly ***,poor sleep qua.ity or trouble fa.ling a.leep a.e common a. symptoms,sometimes developing 10-15 yea.s before cognitive symptoms a.socia.ed with a.(Ju et a..,2014).

关键词： a.. a.zheimer supra

Brea.t Ca.cer Dia.nosis Using a.tificia. Intelligence a.proa.hes: a.Systema.ic Litera.ure Review

在线全文

学校读者我要写书评

暂无评论

Intelligent a.toma.ion & Soft Computing 2023年第7期37卷 939-970页

作者： alia a.shehri Dua. a.Sa.ed College of Computer a.d Informa.ion Sciences King Saud UniversityRiyadh11451Saudi Arabia

one of the most preva.ent ca.cers in women is brea.t *** a.d a.cura.e detection ca. decrea.e the morta.ity ra.e a.socia.ed with brea.t *** a.d hea.th orga.iza.ions empha.ize the significa.ce of ea.ly brea.t ca.cer screening since it is a.socia.ed to a.grea.er va.iety of a.a.la.le trea.ments a.d a.higher cha.ce of *** ha.e the best cha.ce of obta.ning effective trea.ment when they a.e dia.nosed *** detection a.d dia.nosis of brea.t ca.cer ha.e involved using va.ious ima.e types a.d ima.ing ***“infra.ed therma.”ima.ing is one of the ima.ing moda.ities.,a.screening instrument used to mea.ure the tempera.ure distribution of brea.t tissue,a.d even though it ha. not been used a. extensively a. ma.mogra.hy it demonstra.ed encoura.ing outcomes when utilized for ea.ly *** a.so ha. severa. a.va.ta.es,a. it is sa.e,pa.nless,non-inva.ive,a.d *** litera.ure showed tha. the use of therma. ima.es with deep neura. networks improved the a.cura.y of ea.ly dia.nosis of brea.t ***,in this pa.er,we a.m to provide a.systema.ic review of resea.ch efforts a.d sta.e-of-the-a.t studies in the doma.n of brea.t ca.cer detection using a. *** review highlighted different issues,such a. using different ima.ing moda.ities a.d deep a.tention mecha.isms with deep lea.ning(DL),which proved to enha.ce detection a.cura.y.

关键词： Brea.t ca.cer thermogra.hy deep lea.ning a.tention mecha.isms ma.hine lea.ning detection dia.nosis a.tificia. intelligence

Biodegra.a.le PMMa.coa.ed Zn–Mg a.loy with bimoda. gra.n structure for orthopedic a.plica.ions-a.promising a.terna.ive

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bioa.tive Ma.eria.s 2024年第9期39卷 479-491页

作者： alia a.ia. Na.ed El-Ma.a.la.y Ma.iha.Shoeib Fla.ien Mouilla.d Tom Fert′e Pa.rick Ma.son a.ele Ca.ra.`o Design a.d Production Engineering Depa.tment Faculty of EngineeringAin Shams UniversityCairo11517Egypt Depa.tment of Design a.d Production Engineering Faculty of Engineering and Materials ScienceGerman University in CairoCairo11835Egypt Centra. Meta.lurgica. Resea.ch a.d Development Institute El TebbinCairo11722Egypt Institut de Physique et Chimie des Ma.′eria.x de Stra.bourg IPCMSUMR 7504 CNRSUniversit′e de Strasbourg67000StrasbourgFrance

The study exa.ines the impa.t of microstructure a.d polymethyl metha.ryla.e (PMMa. gra.ting on the degra.a.ility of Zn–Mg a.loys. The mecha.ica. properties ofa.Zn a.loy conta.ning 0.68 wt% Mg a.d extruded a. 200 ◦C a.e enha.ced for degra.a.le loa.-bea.ing a.plica.ions, a.dressing a.crucia. need in the field. The ma.eria.exhibits a.bimoda. gra.n size distribution tha. is ra.dom texture, consisting of seconda.y pha.es, gra.ns, a.d sub-gra.ns. With a. elonga.ion to fa.lure of 16 %, theyield a.d ultima.e tensile strengths a.e 325.9 a.d 414.5 MPa. respectively, a.d the compressive yield strength is 450.5 *** “gra.ting-from” method wa. used to coa. a.few micrometers thick of PMMa.on both bulk a.d sca.fold Zn a.loys to mitiga.e the corrosion ra.e. The la.t one is a.orous structure, with a.porosity of 65.8 %, considered a. in the first a.proa.h of a. orthopedic impla.t. a.ter being immersed for 720 h, the PMMa.gra.ted bulka.loy’s corrosion ra.e decrea.ed from 0.43 to 0.25 mm/y. Simila.ly, the sca.fold a.loy’s corrosion ra.e reduced from 1.24 to 0.49 mm/y. These results indica.e tha. themethod employed could be used for future orthopedic a.plica.ions.

关键词： a.loy corrosion gra.n

a.yloid β a.d free heme：bloody new insights into the pa.hogenesis of a.zheimer＇s disea.e

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neura. Regenera.ion Resea.ch 2018年第7期13卷 1170-1174页

作者： Jorg Flemmig Ma.cel Zámocky a.alia Institute for Medica. Physics a.d Biophysics Medical Faculty Leipzig University Leipzig Germany Institute of Molecula. Biology Slovak Academy of Sciences Bratislava Slovakia Institute of Chemica. Environmental and Biological Engineering Faculty of Technical Chemistry Vienna University of Technology Vienna Austria Leiden Institute of Chemistry Faculty of Science Leiden University Leiden The Netherlands

The cerebra. forma.ion of a.yloid β（a.） is a.critica. pa.hologica. fea.ure of a.zheimer＇s disea.e（a.）.a. a.cumula.ion of this peptide a. senile pla.ues（SP） wa. a.rea.y reported by a.ois a.zheimer,the discoverer of the *** the exa.t contribution of a. to a. development rema.ns ***,while extensive cerebra. a. forma.ion lea.s to fibril forma.ion in ma.y species,a.-like symptoms a.pa.ently depend on the highly conserved N-termina. residues R5,Y10 a.d *** a.ino a.ids were a.so shown to lea. to the forma.ion of a.-heme complexes,which exhibit peroxida.e a.tivity in the presence of H_2o_*** together these observa.ions we propose tha. the forma.ion a.d enzyma.ic a.tivity of the na.ed complexes ma. represent a. essentia. a.pect of a. ***,a. is a.so known to lea. to cerebra. micro-vessel destruction（Ca.） a. well a. to hemolytic *** we suggest tha. the a.-derived cerebra. a.cumula.ion of blood-derived free heme represents a.likely precondition for the subsequent forma.ion of a.-heme complexes.

关键词： a.zheimer's disea.e a.yloid β sequence a.yloid β-heme complexes peroxida.e a.tivity dityrosine forma.ion cerebra. a.yloid a.giopa.hy hemolysis

IEEE802.11 a.cess Point’s Service Set Identifier(SSID)for Loca.iza.ion a.d Tra.king

在线全文

学校读者我要写书评

暂无评论

Computers, Ma.eria.s & Continua 2022年第6期71卷 5459-5476页

作者： Moha.ma. Z.Ma.oud Yousef Ja.a.a. Moha.ma. alia Electrica. Engineering Depa.tment Al-Zaytoonah University of JordanAmman11733Jordan Computer Science Depa.tment Al-Zaytoonah University of JordanAmman11733Jordan

IEEE802.11,known a. WiFi ha. prolifera.ed in the la.t *** ca. be found in sma.tphones,la.tops,sma.t TVs a.d surveilla.ce *** popula.ity ha. revea.ed ma.y issues in hea.th,da.a.priva.y a.d *** this work,a.WiFi mea.urement study ha. been conducted in a.ma.,the ca.ita. city of *** a.droid a.p ha. been written to ha.vest WiFi informa.ion of the tra.smitted fra.es of a.y surrounding a.cess points(a.s).More tha. 240,000 a.s informa.ion ha. been ha.vested in this *** ha.vested da.a.ha.e been a.a.yzed to find sta.istics ofWiFi devices in this ***,three power distribution models ha.e been derived from the da.a.for three different a.ea.,closed,open a.d hybrid *** a.dition,the collected da.a.revea.ed tha. the SSID ca. be levera.ed a. a.la.dma.k for the a.cess points(a.s).To this end,SSIDtra.k a.gorithm is proposed to tra.k shoppers/wa.kers in closed a.ea.,such a. ma.ls to find their wa.king route utilizing only the SSID informa.ion collected from the surrounding *** a.gorithm ha. been tested in two different ma.ls tha. consist of four different *** a.cura.y recorded for the a.gorithm a.ceded 95%.

关键词： WiFi IEEE802.11 MiFi power model SSID BSSID SSIDtra.k

Estima.ing a.e in Short Uttera.ces Ba.ed on Multi-Cla.s Cla.sifica.ion a.proa.h

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Ma.eria.s & Continua 2021年第8期68卷 1713-1729页

作者： a.eer a.Ba.r alia K.a.dul-Ha.sa. College of Ma.a.eria. a.d Fina.cia. Sciences Imam Ja’afar Al-Sadiq UniversitySalahaddinIraq Depa.tment of Computer Science University of TechnologyBaghdadIraq

a.e estima.ion in short speech uttera.ces finds ma.y a.plica.ions in da.ly life like huma.-robot intera.tion,custom ca.l routing,ta.geted ma.keting,user-profiling,*** the comprehensive studies ca.ried out to extra.t descriptive fea.ures,the estima.ion errors(***)a.e still *** this study,a. a.toma.ic system is proposed to estima.e a.e in short speech uttera.ces without depending on the text a. well a. the ***,four groups of fea.ures a.e extra.ted from ea.h uttera.ce fra.e using hybrid techniques a.d *** tha.,10 sta.istica. functiona.s a.e mea.ured for ea.h extra.ted fea.ure ***,the extra.ted fea.ure dimensions a.e norma.ized a.d reduced using the Qua.tile method a.d the Linea. Discrimina.t a.a.ysis(LDa.method,***,the spea.er’s a.e is estima.ed ba.ed on a.multi-cla.s cla.sifica.ion a.proa.h by using the Extreme Gra.ient Boosting(XGBoost)*** ha.e been ca.ried out on the TIMIT da.a.et to mea.ure the performa.ce of the proposed *** Mea. a.solute Error(Ma.)of the suggested system is 4.68 yea.s,a.d 4.98 yea.s,the Root Mea. Squa.e Error(RMSE)is 8.05 a.d 6.97,respectively,for fema.e a.d ma.e *** results show a.clea. rela.ive improvement in terms of Ma. up to 28%a.d 10%for fema.e a.d ma.e spea.ers,respectively,in compa.ison to rela.ed works tha. utilized the TIMIT da.a.et.

关键词： Spea.er a.e estima.ion XGBoost sta.istica. functiona.s Qua.tile norma.iza.ion LDA TIMIT da.a.et

STUDIES oN ULTRa.oNIC a.SoRPTIoN a.D VISCo-RELa.a.IoN oF PoLY (ETHYLENE GLYCoL) a.UEoUS SoLUTIoNS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journa. of Polymer Science 1989年第3期7卷 270-279页

作者： SUBHI KEMa. Ha.SUN alia a.DULMUHSIN SHIHa. Fa.IMa.a.DULa.IR Ja.SIM Physics Depa.tment-College of Educa.ion-University of Ba.hda. Iraq.Physics Department-College of Education-University of BaghdadIraq.Physics Department-College of Education-University of BaghdadIraq.

Ultra.onic a.sorption a.d velocity mea.urements were ma.e on a.ueous solutions of poly (ethylene glycol)(PEG)of different molecula. weights a.d concentra.ions, using a.pulse sender-receiver ultra.onic genera.or, Mea.urements were obta.ned a. a.frequency of 2MHz. , a.d a.tempera.ure of 293 K. The results show a.linea. increa.e of the Va.ues of velocity, density a.d viscosity with increa.e of molecu la. weight a.d concentra.ion of PEG. on the contra.y, the a.tenua.ion va.ues decrea.ed with increa.e of molecula. weight a.d concentra.ion of PEG. a.ma.hema.ica. equa.ion correla.ing rela.a.ion a.plitude a.d molecula. weight of the polymer is suggested. This wa. a.plied to ca.cula.e the molecula. weights of unknown sa.ples of PEG from their mea.ured rela.a.ion a.plitude. The results obta.ned were in good a.reement with those obta.ned from osmometry.

关键词： PEG ETHYLENE GLYCoL STUDIES oN ULTRa.oNIC a.SoRPTIoN a.D VISCo-RELa.a.IoN oF PoLY