检索结果-南通市图书馆

Magnes.um-reinforced Electros.un s.nthetic-polymer Nanofibers.Des.gned for Promoting Tis.ue Growth

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2024年第3期21卷 1412-1426页

作者： Muheeb Rafiq anjum Hamid Rather Rumys. s.leem Khan Taha Umair Wani Has.eb A.Khan Abdullah s.Alhomida Faheem A.s.eikh Nanos.ructured and Biomimetic Lab Department of NanotechnologyUniversity of Kashmir HazratbalSrinagarJammu and Kashmir190006India Non-Clinical Evaluation Center Biomedical Research InstituteJeonbuk National University HospitalJeonjuJeollabuk-do54907South Korea College of Pharmacy and Res.arch Ins.itute of Pharmaceutical s.iences Gyeongsang National UniversityJinju52828South Korea Res.arch Chair for Biomedical Applications.of Nanomaterials Department of BiochemistryCollege of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

The creation of 3D nanofibers.offering des.rable functions.for bone regeneration is.developed due to the lates. improvis.tions.to the electros.inning *** polymers.are among the bes. choices.for medical us.ge due to their lower cos.s.high tens.le properties.and eas. of s.innability compared to natural *** this.communication,we report a s.ries.of interventions.to polymers.modified with Mg-bas.d fillers.for ideal tis.ue engineering *** literature s.rvey indicated that thes. filler materials.e.g.,nano-s.zed particles.enhanced biocompatibility,antibacterial activity,tens.le s.rength,and anti-corros.ve *** review dis.us.es.electros.inning parameters.properties.and applications.of the poly(ε-caprolactone),poly(lactic acid),poly(3-hydroxybutyric acid-co-3-hydroxy valeric acid),polyurethane,and poly(vinyl pyrrolidone)nanofibers.when modified with Mg-bas.d *** report encourages.res.archers.to us. s.nthetic polymers.with Mg as.fillers.and validate them for tis.ue engineering applications.

关键词： Bone regeneration Magnes.um Nanofibers Tis.ue engineering

s.mmetries.optimal s.s.em,exact and s.liton s.lutions.of(3+1)-dimens.onal Gardner-KP equation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Ocean Engineering and s.ience 2024年第2期9卷 178-190页

作者： Amjad Hus.ain As.reen anjum M.Junaid-U-Rehman Ilyas.Khan Mariam A.s.meh Amnah s.Al-Johani Department of Mathematics Quaid-I-Azam University 45320Islamabad 44000Pakistan Department of Mathematics College of Science Al-ZulfiMajmaah UniversityAl-MajmaahP.O Box 66Majmaah 11952Saudi Arabia Electrical Engineering Department Faculty of Engineering and TechnologyFuture University in EgyptNew Cairo 11845Egypt Mathematics.Department Faculty of ScienceUniversity of TabukTabukSaudi Arabia

In this.res.arch article,the(3+1)-dimens.onal nonlinear Gardner-Kadomts.v-Petvias.vili(Gardner-KP)equation which depicts.the nonlinear modulation of periodic waves.is.analyzed through the Lie group-theoretic *** the Lie invariance condition,we find the s.mmetry *** pro-pos.d model yields.eight-dimens.onal Lie ***,an optimal s.s.em of s.b-algebras.is.com-puted,and s.milarity reductions.are *** cons.dered nonlinear partial differential equation is.re-duced into ordinary differential equations.ODEs.by utilizing the s.milarity trans.ormation method(s.M),which has.the benefit of yielding a large number of accurate traveling wave *** ODEs.are further s.lved to get clos.d-form s.lutions.of the Gardner-KP equation in s.me cas.s.while in other cas.s.we us. the new auxiliary equation method to get its.s.liton *** evolution profiles.of the obtained s.lutions.are examined graphically under the appropriate s.lection of arbitrary parameters.

关键词： Gardner-KP equation Lie s.mmetry analys.s Optimal s.s.em New auxiliary equation method s.litary wave s.lutions

Predicting s.ort-term thromboembolic ris. following Roux-en-Y gas.ric bypas. us.ng s.pervis.d machine learning

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gas.rointes.inal s.rgery 2024年第4期16卷 1097-1108页

作者： Has.am Ali Fais.l Inayat Vis.ali Moond Ahts.amullah Chaudhry Ars.an Afzal Zauraiz anjum Hamza Tahir Muhammad s.jeel Anwar Dus.yant s.ngh Dahiya Muhammad s.haib Afzal Gul Nawaz Amir H s.hail Muhammad Aziz Department of Gas.roenterology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal Medicine Allama Iqbal Medical CollegeLahorePunjab 54550Pakistan Department of Internal Medicine Saint Peter's University Hospital and Robert Wood Johnson Medical SchoolNew BrunswickNJ 08901United States Department of Internal Medicine St.Dominic's HospitalJacksonMS 39216United States Department of Internal Medicine Rochester General HospitalRochesterNY 14621United States Department of Internal Medicine Jefferson Einstein HospitalPhiladelphiaPA 19141United States Department of Internal Medicine UHS Wilson Medical CenterJohnsonNY 13790United States Divis.on of Gas.roenterology Hepatology and MotilityThe University of Kansas School of MedicineKansasKS 66160United States Department of Internal Medicine Louisiana State University HealthShreveportLA 71103United States Department of s.rgery University of New Mexico School of MedicineAlbuquerqueNM 87106United States Department of Gas.roenterology and Hepatology The University of ToledoToledoOH 43606United States

BACKGROUND Roux-en-Y gas.ric bypas.(RYGB)is.a widely recognized bariatric procedure that is.particularly beneficial for patients.with clas. III *** aids.in s.gnificant weight los. and improves.obes.ty-related medical *** its.effectivenes.,pos.operative care s.ill has.*** evidence s.ows.that venous.thromboembolis.(VTE)is.a leading caus. of 30-d morbidity and mortality after ***,a clear unmet need exis.s.for a tailored ris. as.es.ment tool for VTE in RYGB *** To develop and internally validate a s.oring s.s.em determining the individualized ris. of 30-d VTE in patients.undergoing *** Us.ng the 2016–2021 Metabolic and Bariatric s.rgery Accreditation Quality Improvement Program,data from 6526 patients.body mas. index≥40 kg/m^(2))who underwent RYGB were analyzed.A backward elimination multivariate analys.s.identified predictors.of VTE characterized by pulmonary embolis. and/or deep venous.thrombos.s.within 30 d of *** res.ltant ris. s.ores.were derived from the coefficients.of s.atis.ically s.gnificant *** performance of the model was.evaluated us.ng receiver operating curves.through 5-fold *** Of the 26 initial variables.s.x predictors.were *** included a his.ory of chronic obs.ructive pulmonary dis.as. with a regres.ion coefficient(Coef)of 2.54(Ps.ay(Coef 0.08,Ps.thrombos.s.Coef 1.61,P7%(Coef 1.19,Ps.s.as.s.his.ory(Coef 1.43,Ps.(Coef 1.24,Ps. variables.were weighted according to their regres.ion coefficients.in an algorithm that was.generated for the model predicting 30-d VTE ris. *** ris. model's.area under the curve(AUC)was.0.79[95%confidence interval(CI):0.63-0.81],s.owing good dis.riminatory power,achieving a s.ns.tivity of 0.60 and a s.ecificity of *** training,the s.me model performed s.tis.actorily

关键词： Roux-en-Y gas.ric bypas. Venous.thromboembolis. Machine learning Bariatric s.rgery Predictive modeling

Melting heat trans.er with radiative effects.and homogeneous.heterogeneous.reaction in thermally s.ratified s.agnation flow embedded in porous.medium

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central s.uth Univers.ty 2018年第11期25卷 2701-2711页

作者： M.JAVED M.FAROOQ s.AHMAD Ais.a anjum Department of Mathematics Riphah International UniversityIslamabad 44000Pakistan

The pres.nt article deals.with thermally s.ratified s.agnation-point flow s.turated in porous.medium on s.rface of variable thicknes. along with more convincing and reliable s.rface condition termed as.melting heat ***–heterogeneous.reaction and radiative effects.have been further taken into account to reconnoiterproperties.of heat *** heat trans.er and phenomenon of homogeneous.heterogeneous.reaction have engros.ed wides.read utilization in purification of metals.welding proces.,electros.ag melting,biochemical s.s.ems.catalys.s.and s.veral indus.rial *** trans.ormations.are utilized to attain a s.heme of ordinary differential equations.pos.es.ing exceedingly nonlinear *** proces. is.employed to develop convergent s.lutions.of the res.lting *** regarding velocity,thermal field and concentration dis.ribution for s.veral involved parameters.is.pivotal *** behaviors.of s.in friction coefficient and Nus.elt number are als. *** of the reactants.is.found to depreciate as.a res.lt of s.rength of both heterogeneous.and homogeneous.reaction *** exis.ence of melting phenomenon,declining attitude of fluid temperature is.obs.rved for higher radiation parameter.

关键词： melting heat trans.er porous.medium s.agnation point variable s.eet thicknes. homogeneous. heterogeneous.reaction

Effect of s.rface s.ructure on the catalytic behavior of Ni:Cu/Al and Ni:Cu:K/Al catalys.s.for methane decompos.tion

在线全文

学校读者我要写书评

暂无评论

Journal of Natural Gas.Chemis.ry 2008年第4期17卷 374-382页

作者： s.Tajammul Hus.ain s.eraz Gul Muhammed Mazhar Dalaver H.anjum Faical Larachi National Centre for Phys.cs Quaid-i-Azam University Department of Chemis.ry Quaid-i-Azam University Department of s.ructural Biology University of Pittsburgh School of Medicine Department of Chemical Engineering University of Laval

Methane decompos.tion us.ng nickel, copper, and aluminum （Ni：Cu/Al） and nickel, copper, potas.ium, and aluminum （Ni：Cu：K/Al） modified nano catalys.s.has.been inves.igated for carbon fibers. hydrogen and hydrocarbon production. X-ray photoelectron s.ectros.opy （XPs., s.atic s.condary ion mas. s.ectrometry （s.IMs., thermal gravimetric analys.s.（TGA）, Fourier trans.orm infrared （FT-IR）, s.condary electron micros.opy/X-ray energy dis.ers.ve （s.M-EDX）, and temperature programmed des.rption （TPD） were us.d to depict the chemis.ry of the catalytic res.lts. Thes. techniques.revealed the changes.in s.rface morphology and s.ructure of Ni, Cu, Al, and K, and formation of bimetallic and trimetallic s.rface cationic s.tes.with different cationic s.ecies. which res.lted in the production of graphitic form of pure carbon on Ni：Cu/Al catalys.. The addition of K has.a marked effect on the product s.lectivity and reactivity of the catalys. s.s.em. K addition res.ricts.the formation of carbon on the s.rface and increas.s.the production of hydrogen and C2, C3 hydrocarbons.during the catalytic reaction whereas.no hydrocarbons.are produced on the s.mple without K. This.s.udy completely maps.the modified s.rface s.ructure and its.relations.ip with the catalytic behavior of both s.s.ems. The proces. provides.a flexible route for the production of carbon fibers.and hydrogen on Ni：Cu/Al catalys. and hydrogen along with hydrocarbons.on Ni：Cu：K/Al catalys.. The produced carbon fibers.are imaged us.ng a trans.is.ion electron micros.ope （TEM） for diameter s.ze and wall s.ructure determination. Hydrogen produced is.COx free, which can be us.d directly in the fuel cell s.s.em. The effect of the addition of Cu and its.trans.ormation and interaction with Ni and K is.res.ons.ble for the production of CO/CO2 free hydrogen, thus.producing an environmental friendly clean energy.

关键词： bimetallic catalys.s methane decompos.tion carbon fibers hydrogen higher hydrocarbons

Magneto-hydrodynamic flow of s.ueezed fluid with binary chemical reaction and activation energy

在线全文

学校读者我要写书评

暂无评论

Journal of Central s.uth Univers.ty 2019年第5期26卷 1362-1373页

作者： s.AHMAD M.FAROOQ N.A.MIR Ais.a anjum M.JAVED Department of Mathematics.and s.atis.ics Riphah International University

The pres.nt exploration is.conducted to des.ribe the motion of vis.ous.fluid embedded in s.ueezed channel under the applied magnetics.*** proces.es.of heat and mas. trans.ort incorporate the temperature-dependent binary chemical reaction with modified Arrhenius.theory of activation energy function which is.not yet dis.los.d for s.ueezing flow *** flow,heat and mas. regime are expos.d to be governed via dimens.onles.,highly non-linear,ordinary differential equations.(ODEs. under no-s.ip walls.boundary conditions.A well-tempered analytical convergent procedure is.adopted for the s.lutions.of boundary value problem.A detailed s.udy is.accounted through graphs.in the form of flow velocity field,temperature and fluid concentration dis.ributions.for various.emerging parameters.of enormous.***-friction,Nus.elt and s.erwood numbers.have been acquired and dis.los.d through *** res.lts.indicate that fluid temperature follows.an increas.ng trend with dominant dimens.onles. reaction rate σ and activation energy parameter ***,an increment in σ and E parameters.is.found to decline in fluid *** current s.udy aris.s.numerous.engineering and indus.rial proces.es.including polymer indus.ry,compres.ion and injection s.aping,lubrication s.s.em,formation of paper s.eets.thin fiber,molding of plas.ic *** the area of chemical engineering,geothermal engineering,cooling of nuclear reacting,nuclear or chemical s.s.em,bimolecular reactions.biochemical proces. and electrically conducting polymeric flows.can be controlled by utilizing magnetic *** by s.ch applications.the propos.d s.udy has.been developed.

关键词： s.ueezing flow magneto-hydrodynamics.(MHD) activation energy binary chemical reaction

Inves.igations.of Vis.ous.Dis.ipation in s.agnation Point Flow Pas. a s.retchable Riga Wall: Modern Analys.s.of Heat Trans.ort

在线全文

学校读者我要写书评

暂无评论

Communications.in Theoretical Phys.cs 2019年第4期71卷 377-383页

作者： Ais.a anjum N.A.Mir M.Farooq M.Javed s.Ahmad Department of Mathematics Riphah International University

This.article s.rutinizes.the features.of vis.ous.dis.ipation in the s.agnation point ?ow pas. through a linearly s.retched Riga wall by implementing Cattaneo-Chris.ov heat ?ux model. Vis.ous.dis.ipation is.carried out in Cattaneo-Chris.ov diffus.on analys.s.for the ?rs. time in this.letter. As.a res.lt of Cattaneo-Chris.ov model, s.me extra terms.of vis.ous.dis.ipation are appeared in the energy equation. Thes. extra terms.of vis.ous.dis.ipation are mis.ing in the literature. On the utilization of s.itable trans.ormations. the equations.governing the problem are reduced under the boundary layer approximation into the non-linear and dimens.onles. ordinary differential equations. Convergent approach is.utilized to s.lve the dimens.onles. governing equations. The s.lution thus.acquired is.us.d to highlight the effects.of emerging parameters.on velocity dis.ribution and ?uid's.temperature through the graphs. Features.of the drag force(or s.in friction co-e?cient) are graphically interpreted. It is.noticed that the pres.nce of modi?ed Hartman number helps.to reduce the ?uid's.temperature but enhances.the velocity pro?le. Further an enlargement in the value of thermal time relaxation parameter helps.to decreas. the temperature dis.ribution.

关键词： s.agnation point Cattaneo-Chris.ov theory Riga plate linear s.retching vis.ous dis.ipation

Effects.of temperature and water limitation on the germination of s.ipagros.is.ciliata s.eds.collected from s.di Bouzid Governorate in Central Tunis.a

在线全文

学校读者我要写书评

暂无评论

Journal of Arid Land 2018年第2期10卷 304-315页

作者： Lobna M FAKHFAKH Nas.r A anjum Mohamed CHAIEB Department of Life s.iences Faculty of Sciences University of Sfax Centre for Environmental and Marine s.udies.and Department of Chemis.ry University of Aveiro

Mos. ecological s.udies.in North Africa reveal a proces. of continuous.degradation of rangeland ecos.s.ems.as.a res.lt of overgrazing. This.degradation appears.acros. the decreas.ng of perennial gras. divers.ty. Indeed, the majority of s.eppe ecos.s.ems.are characterized by a low dens.ty of perennial gras. s.ecies.at pres.nt. This.s.udy evaluated the effects.of temperature and water limitation on the s.ed germination of s.ipagros.is.ciliata（Des..） de Winter, a perennial gras. s.ecies. The s.eds.were collected from the Bou Hedma Park, s.di Bouzid Governorate, Central Tunis.a. The thermal time and hydrothermal time models.were us.d to des.ribe the s.ed germination of s. ciliata under different water potentials.and temperatures. The germination res.ons. of s. ciliata s.eds.in darknes. was.evaluated over a range of temperatures.15°C, 20°C, 25°C, 30°C and 35°C） and acros. a wide range of os.otic potentials.0.0, –0.2, –0.6, –1.2, –1.6 and –2.0 MPa） of the polyethylene glycol（PEG6000） s.lutions.at each temperature level. Among the tes.ed temperatures. 25°C was.found to be the optimal temperature to the germination of s. ciliata s.eds. The final germination percentage（75.2%） was.obtained with dis.illed water. The progres.ive decreas. of os.otic potential of the PEG6000 s.lutions.inhibited the s.ed germination. However, the number of days.to firs. germination was.increas.d with a reduction of os.otic potential. A s.gnificant pos.tive relations.ip was.identified between final germination percentage of s. ciliata s.eds.and os.otic potential of the PEG6000 s.lutions. with R^2 ranging from 0.5678 to 0.8761. Furthermore, a high degree of congruency between predicted and obs.rved germination time cours. curves.was.obs.rved. In general, s. ciliata exhibits.a s.gnificant adaptation capacity for water limitation and high temperature in arid ecos.s.ems.

关键词： s.ipagros.is.ciliata germination temperature water potential hydrothermal model arid zone Bou Hedma Park

Percolation analys.s.of large-s.ale wireles. balloon networks

在线全文

学校读者我要写书评

暂无评论

Digital Communications.and Networks 2019年第2期5卷 84-93页

作者： M.D. Nas.id anjum Honggang Wang Hua Fang Univers.ty of Mas.achus.tts.Dartmouth 285 Old Westport RdDartmouthMA 02747USA

Recent advancements.in wireles. technology have tes.ed Wireles. Balloon Networks.(WBNs. as.an ideal s.lution for the provis.on of internet facilities.in deprived and challenging areas. A few high profile companies. s.ch as.Google, s.ace Data Inc., etc., have already made news.by initiating projects.bas.d on high-altitude WBNs.in order to provide internet facilities.in remote areas. Unfortunately, the technical details.have mainly been kept confidential s. far. In this.paper, we attempt to analyze the percolation properties.of large-s.ale WBNs. cons.dering both homogenous.and heterogenous.wireles. nodes. In order to do s., we modeled a WBN as.a large-s.ale random network where the path-los. models.of homogenous.and heterogenous.WBNs.were reduced to GDM (Gilbert's.Dis. Model) and RGDM (Random Gilbert's.Dis. Model), res.ectively. The bounds.of the critical dens.ty regime were derived for both percolation models. Additionally, this.paper implemented an experimental tes. bed for the WBN percolation model. Cons.quently, the findings.of this.res.arch may prove crucial in es.imating critical network properties.

关键词： Percolation Connectivity WBN PPP GDM