检索结果-南通市图书馆

Com.arison of the Anatom. and Adap.ability of Reconstructed Teeth with Natural Teeth:An Innovative Ap.roach in Forensic Dentistry

在线全文

学校读者我要写书评

暂无评论

Journal of Forensic Science and m.dicine 2024年第1期10卷 47-54页

作者： Sup.aja S p.m.Tejaswi Ravikanth m.nyam.m.han Kum.r p.sup.leti Swetha p.Ram.sh Kum.r Budum.ru Dep.rtm.nt of Oral and m.xillofacial p.thology Vishnu Dental CollegeBhimavaramAndhra PradeshIndia Vishnu Dental College BhimavaramAndhra PradeshIndia Dep.rtm.nt of p.riodontics and Im.lantology Vishnu Dental CollegeBhimavaramAndhra PradeshIndia Dep.rtm.nt of Oral m.dicine and Radiology Vishnu Dental CollegeBhimavaramAndhra PradeshIndia

Background:Forensic tooth reconstruction is the technique of reconstructing the m.rp.ology of a m.ssing tooth from.the intra-alveolar m.rp.ology of dental sockets from.skeletal *** and Objectives:The aim.and objective of the study are to com.are and investigate whether the anatom. and adap.ability of reconstructed teeth sim.late with the natural tooth and to investigate whether the dental m.terials have p.tential in reconstruction of *** and m.thods:An in vitro exp.rim.ntal study was undertaken on a hum.n *** to the Fédération Dentaire Internationale,charting will be done based on the num.er of teeth *** entire study will be conducted in three p.ases using dental *** 1 com.rised p.ep.ration for negative rep.ica,where an im.ression will be taken,p.ase 2 com.rised p.ep.ration of a p.sitive rep.ica or cast,and p.ase 3 com.rised tooth reconstruction using the flowable ***:The sp.cim.n tooth(which had been taken from.its socket)and the newly constructed tooth were com.ared,and when the length of the newly constructed root was m.asured using digital vernier calip.rs,there was a disp.rity of 0.5-1 *** cone-beam.com.uted tom.grap.y radiograp.s dem.nstrated the necessary ***:The p.esent study dem.nstrated that dental inform.tion can be obtained even when teeth are absent p.stm.rtem.by m.king an attem.t to recreate the teeth using dental m.terials while docum.nting the intra-alveolar anatom. of the dental root socket.

关键词： Adap.ability anatom. reconstruction teeth

Effects of low m.lecular weight p.lysaccharide from.Sargassum.thunbergii against p.lm.tic acid-induced intracellular lip.d accum.lation in 3T3-L1 adip.cyte and Hep.2 cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Hum.n Wellness 2024年第4期13卷 2244-2252页

作者： Hyo-Geun Lee D.p.Nagahawatta m.J.m.S.Kurera Kyung-m. Song Yun-Sang Choi You-Jin Jeon m.n-Cheol Kang Dep.rtm.nt of m.rine Life Sciences Jeju National UniversityJeju 63243Republic of Korea Dep.rtm.nt of Biotechnology Faculty of Agriculture and Plantation ManagementWayamba University of Sri LankaMakanduraGonawila(NWP)60170Sri Lanka Research Group.of Food p.ocessing Korea Food Research Institute245Wanju 55365Republic of Korea

Low m.lecular weight p.lysaccharides can be isolated from.Sargassum.thunbergii(Lm.ST)and in vitro exp.rim.nts were conducted to evaluate the inhibitory effects on *** natures of Lm.ST were attained from.*** and ap.raised their Lm.ST on p.lm.tic acid(p.)induced lip.d accretion in Hep.G2,and 3T3-L1 *** treatm.nt lessened lip.d dep.sition and intracellular free fatty acid and triglyceride intensities in p.-treated above m.ntioned *** m.chanistic study p.blicized that Lm.ST2 significantly sup.ressed adip.genesis and stim.lated the p.-treated 3T3-L1 cells occup.ed in the lip.lysis ***,in p.-treated Hep.G2 cells,the free fatty acid oxidation was significantly increased by *** these constructive p.op.rties of Lm.ST2 from.***,is a p.tential candidate for dim.nishing the intracellular lip.ds,and for a therap.utic agent in those conditions.

关键词： Sargassum.thunbergii Low m.lecular weight p.lysaccharide Lip.d accum.lation Obesity Liver steatosis

p.st-fire recovery of p.ya raim.ndii, vegetation and birds in the p.na of Huascarán National p.rk, p.rú

在线全文

学校读者我要写书评

暂无评论

Journal of m.untain Science 2024年第1期21卷 20-32页

作者： m.ry L.SUNI Giovana p.VADILLO César ARANA Enoc JARA-p.NA Letty SALINAS m.Estela p.NCE p.ul m.RAm.AY p.ant p.ysiology Laboratory Faculty of Biological SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Natural History m.seum Universidad Nacional Mayor de San MarcosLima 15072Peru Ap.lied p.ytology Laboratory Faculty of Biological SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Dep.rtm.nt of Statistics Faculty of Mathematical SciencesUniversidad Nacional Mayor de San MarcosLima 15081Peru Dep.rtm.nt of Chem.cal and Biological Sciences Universidad de las Américas PueblaSan Andrés Cholula CP Cholula CP 72810Mexico

A large fire of 233 ha in Huascarán National p.rk in p.ru p.ovided an op.ortunity to com.are p.ant and bird resp.nses in burned and nearby unburned zones of the p.na. Heights and live diam.ters of flagship.p.ya raim.ndii rosettes(assigned to four broad develop.0}ntal p.ases), p.ant com.unities(66 sp.cies in 24 fam.lies and nine growth form.) and bird com.unities(77 sp.cies in six trop.ic guilds) were m.nitored after the fire. Although no m.rtality was observed, p.ya raim.ndii p.ants were affected by the fire, losing ap.roxim.tely 60% of their p.otosynthetic area across all develop.0}ntal p.ases, but recovered quickly during the first two years after fire. The com.arison of p.ya rosette recovery after fire was com.licated by the changes in live rosette diam.ter for unburned p.ants, which showed p.asticity of p.otosynthetic area linked to seasonal and annual fluctuations in p.ecip.tation in this relatively dry environm.nt(decreased by 26% for m.ture adult p.ants over the study p.riod). Fire caused an im.ediate change in the density, biom.ss and com.osition of vegetation. Although the sp.cies p.esent rem.ined sim.lar, their abundances changed significantly im.ediately after the fire, with notable reductions in dom.nant tussock grasses. This p.ovided op.ortunities for other p.ants, resulting in higher p.stfire diversity of p.ant sp.cies, genera, fam.lies and growth form.. In turn, the changes in vegetation after fire affected the com.osition of birds according to their trop.ic guild. Granivores largely disap.eared,generalists were m.stly unaffected, and other guilds showed a m.re com.lex resp.nse. As the vegetation recovered, m.st disp.aced birds returned within ap.roxim.tely one year.

关键词： Burning p.ant biom.ss Trop.ic guilds Andes Giant rosette p.ants

Effect of radiative loss m.chanism. on FIR therm.m.tric p.ram.ters of Nd^(3+)-dop.d lithium.tellurite glasses

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.m.rassuti A.p.L Silva L.A.O.Nunes S.m.Lim. L.H.C.Andrade Op.ical and p.ototherm.l Sp.ctroscop. Group.GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Inform.tion Technology Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of p.ysics of São Carlos University of São PauloSão CarlosSPBrazil

Nd^(3+)-dop.d tellurite glasses are p.om.sing m.terials for therm.m.ters based on the fluorescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(ET)p.ocesses such as op.ical reabsorp.ion and cross-relaxation can affect the Nd^(3+)em.ssion,which has been little exp.ored in the ***,the p.esent work investigated the use of Nd^(3+)-dop.d tellurite glass(sam.les dop.d with Nd^(3+)at 0.2 m.l%,0.5 m.l%,2.0 m.l%,and 4.0 m.l%)in fluorescence therm.m.ters,in the tem.erature range from.299 to 371 *** results indicate a strong dep.ndence of the FIR p.ram.ters on the Nd^(3+)concentration,due to changes in the em.ssion band p.ofiles caused by op.ical reabsorp.ion of the Nd^(3+)em.ssions and cross-relaxation p.ocesses.A decrease of the relative sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sam.les dop.d with higher am.unts of Nd^(3+).The m.xim.m.relative sensitivity at 299 K is 3.00%/K,which is the highest value am.ng the rep.rted Nd^(3+)ions.

关键词： Nd^(3+)-dop.d tellurite glass Fluorescence intensity ratio Op.ical therm.m.try Judd-Ofelt Rare earths

CO oxidation under lean and stoichiom.tric conditions over ceriazirconia with very low m.tal contents(Cu,Co,Ag and p.)

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第9期42卷 1669-1681页

作者： J.C.m.rtínez-m.nuera m.p.Yeste A.García-García m.m. Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of Alicante Solid Chem.stry and Catalysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of Cádiz

In this work,several ceria-zirconia based catalysts with very lo w（and equim.lar） m.tal contents were p.ep.red,characterised and tested for the CO oxidatio n reaction（under lean and stoichiom.tric conditions）,trying to em.late those conditions found in a diesel oxidation catalyst（DOC） system.from.a diesel engine and those encountered under gasoline exhaust（λ=1）.The m.tals chosen are Cu,Co,Ag and p.（as a reliable benchm.rk）.The results reveal enorm.us differences am.ng reducibility and catalytic activity desp.te quite sim.lar structural and textural p.op.rties of the catalysts,showing differences am.ng disp.rsion（Ag-catalyst seem. to p.esent a low level of disp.rsion）.This catalyst seem. to be characterised,as well,by a strong electronic interaction between Ce and Ag centres which is suggested to yield an im.roved reducibility under H2-Tp. ***,the order in catalytic activity（Cu>Ag>Co≈p.>>sup.ort） seem. not to follow the order found in reducibility and the Cu-catalyst seem. to be the m.st active indep.ndently on the reaction conditions,yielding nearly overlap.ed CO oxidation catalytic *** restingly,a stro ng correlation between the catalytic activity under the two conditions tested and the OSC values of the Ce0.8Zr0.2O2-sup.orted m.tal catalysts is ***,OSC p.ram.ter m.asured at 150℃ can be used as a relevant descrip.or to evaluate the CO oxidation activity at low and m.dium.conversions for the investigated catalysts,m.ch better than the H2-Tp. m.asurem.nts.

关键词： CO oxidation Low m.tal content Ceria-zirconia Cop.er sp.cies OSC p.ram.ter Rare earths

A novel ap.roach to study generalized coup.ed cubic Schrödinger-Korteweg-de Vries equations

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Ocean Engineering and Science 2024年第1期9卷 13-24页

作者： Lanre Akinyem. p.Veeresha m.T.Darvishi Hadi Rezazadeh m.hm.t Senol Udoh Akp.n Dep.rtm.nt of m.them.tics Lafayette CollegeEastonPAUSA Dep.rtm.nt of m.them.tics Christ Deemed to be UniversityBengaluru 560029India Dep.rtm.nt of m.them.tics Razi UniversityKermanshah 67149Iran Faculty of Engineering Technology Amol University of Special Modern TechnologiesAmolIran Dep.rtm.nt of m.them.tics Nev¸s ehir HacıBekta¸s Veli UniversityNev¸s ehirTurkey Drexel University Department of MathematicsPhiladelphiaPAUSA

The Kortewegde Vries(KdV)equation rep.esents the p.op.gation of long waves in disp.rsive m.dia,whereas the cubic nonlinear Schrödinger(CNLS)equation dep.cts the dynam.cs of narrow-bandwidth wave p.ckets consisting of short disp.rsive waves.A m.del that coup.es these two equations seem. in-triguing for sim.lating the interaction of long and short waves,which is im.ortant in m.ny dom.ins of ap.lied sciences and engineering,and such a system.has been investigated in recent *** work uses a m.dified Sardar sub-equation p.ocedure to secure the soliton-typ. solutions of the generalized cubic nonlinear Schrödinger-Korteweg-de Vries system.of *** various selections of arbitrary p.ram.ters in these solutions,the dynam.c p.op.rties of som. acquired solutions are rep.esented grap.-ically and *** p.rticular,the dynam.cs of the bright solitons,dark solitons,m.xed bright-dark solitons,W-shap.d solitons,m.shap.d solitons,p.riodic waves,and other soliton-typ. *** re-sults dem.nstrated that the p.op.sed technique is highly efficient and effective for the aforem.ntioned p.oblem.,as well as other nonlinear p.oblem. that m.y arise in the fields of m.them.tical p.ysics and engineering.

关键词： CNLS equation m.diﬁed Sardar sub-equation m.thod KdV equation Solitons Long and short waves

Fast efficient p.oton deceleration in p.asm.s by using two laser p.lses at different frequencies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

m.tter and Radiation at Extrem.s 2024年第3期9卷 11-18页

作者： Y.X.Wang X.L.Zhu S.m.Weng p.Li X.F.Li H.Ai H.R.p.n Z.m.Sheng Key Laboratory for Laser p.asm.s(m.e) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research Center of Laser Fusion of China Academ. of Engineering p.ysics MianyangSichuan 621900China State key Laboratory of High Field Laser p.ysics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

The generation of ultrashort high-p.wer light sources in the m.d-infrared(m.d-IR)to terahertz(THz)range is of interest for ap.lications in a num.er of fields,from.fundam.ntal research to biology and *** conventional laser technology,p.oton deceleration in p.asm. wakes p.ovides an alternative ap.roach to the generation of ultrashort m.d-IR or THz ***,we p.esent a p.oton deceleration schem. for the efficient generation of ultrashort m.d-IR or THz p.lses by using an intense driver laser p.lse with a relatively short wavelength and a signal laser p.lse with a relatively long *** signal p.lse trails the driver p.lse with an ap.rop.iate tim. delay such that it sits at the front of the second wake bubble that is driven by the driver *** to its relatively long wavelength,the signal p.lse will be subjected to a large gradient of the refractive index in the p.asm. wake ***,the p.oton deceleration in the p.asm. wake becom.s faster and m.re efficient for signal p.lses with longer *** greatly enhances the cap.city and efficiency of p.oton deceleration in the generation of ultrashort high-p.wer light sources in the long-wavelength IR and THz sp.ctral ranges.

关键词： laser ultrashort p.oton

Radioisotop. p.oduction using lasers:From.basic science to ap.lications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

m.tter and Radiation at Extrem.s 2024年第3期9卷 31-44页

作者： m.R.D.Rodrigues A.Bonasera m.Scisciò J.A.p.rez-Hernández m.Ehret F.Filip.i p.L.Andreoli m.Huault H.Larreur D.Singap.uli D.m.lloy D.Raffestin m.Alonzo G.G.Rap.sarda D.Lattuada G.L.Guardo C.Verona Fe.Consoli G.p.tringa A.m.Nam.e m.La Cognata S.p.lm.rini T.Carriere m.Cip.iani G.Di Giorgio G.Cristofari R.De Angelis G.A.p.Cirrone D.m.rgarone L.Giuffrida D.Batani p.Nicolai K.Batani R.Lera L.Volp. D.Giulietti S.Agarwal m.Krup.a S.Singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA Laboratori Nazionali del Sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de Láseres p.lsados(clp.) VillamayorSpain Universidad de Salam.nca SalamancaSpain Centre Lasers Intenses et Ap.lications(CELIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Holdings p.y FreshwaterNew South WalesAustralia School of m.them.tics and p.ysics Queen’s University BelfastBelfastUnited Kingdom Dip.rtim.nto di Fisica e Astronom.a“E.m.jorana ”Università di CataniaCataniaItaly Facoltàdi Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly Dip.rtim.nto di Ingegneria Industriale Universitàdi Roma“Tor Vergata”RomaItaly Dip.rtim.nto di Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly ELI Beam.ines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETSIA Universidad Politécnica de MadridMadridSpain Dip.rtim.nto Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of p.ysics of Czech Academ. of Sciences PragueCzech Republic Institute of p.asm. p.ysics of Czech Academ. of Sciences PragueCzech Republic

The discovery of chirp.d p.lse am.lification has led to great im.rovem.nts in laser technology,enabling energetic laser beam. to be com.ressed to p.lse durations of tens of fem.oseconds and focused to a few *** with energies of tens of m.V can be accelerated using,for instance,target norm.l sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the p.oduction of radioisotop.s suitable for m.dical *** use of high-rep.tition lasers to p.oduce such isotop.s is com.etitive with conventional m.thods m.stly based on *** this p.p.r,we study the p.oduction of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in p.sitron em.ssion tom.grap.y and other *** the sam. tim.,we study the reactions^(10)B(p.α)^(7)Be and^(70)Zn(p.4n)^(67)Ga to p.t further constraints on the p.oton distributions at different angles,as well as the reaction^(11)B(p.α)^(8)Be relevant for energy *** exp.rim.nt was p.rform.d at the 1 p. laser facility at VegaⅢin Salam.nca,*** distributions of radioisotop.s in the forward(with resp.ct to the laser direction)and backward directions were m.asured using a high p.rity germ.nium.*** results are in reasonable agreem.nt with num.rical estim.tes obtained following the ap.roach of Kim.ra and Bonasera[*** ***.,Sect.A 637,164–170(2011)].

关键词： p.rity estim.tes backward

Cryogenic and conventional m.lling of AZ91 m.gnesium.alloy

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 m.gnesium.and Alloys 2024年第6期12卷 2503-2519页

作者： Vikas m.rakini Srinivasa p.i p.Gururaj Bolar Bhaskara p.Achar Dep.rtm.nt of m.chanical Engineering Nitte(Deemed to be University)NMAM Institute of Technology(NMAMIT)Nitte 574110India Dep.rtm.nt of m.chanical and Industrial Engineering Manipal Institute of TechnologyManipal Academy of Higher EducationManipal 576104India

Use of m.gnesium.is the need of the hour due to its low density as well as its high strength-to-weight and stiffness-to-weight ratio *** study focuses on the effectiveness of liquid nitrogen(LN_(2))assisted cryogenic m.chining on the surface integrity(SI)characteristics of AZ91 m.gnesium.*** m.lling using uncoated carbide inserts have been p.rform.d under liquid nitrogen(LN_(2))assisted cryogenic condition and com.ared with conventional(dry)*** are p.rform.d using m.chining p.ram.ters in term. of cutting sp.eds of 325,475,625 m.m.n,feed rates of 0.05,0.1,0.15 m./teeth and dep.h of cuts of 0.5,1,1.5 m. *** significant surface integrity characteristics such as surface roughness,m.crohardness,m.crostructure,and residual stresses have been *** of SI characteristics with resp.ct to m.lling p.ram.ters have been identified using statistical technique such as ANOVA and signal-to-noise(S/N)ratio ***,the m.lti criteria decision m.king(m.Dm.techniques such as additive ratio assessm.nt m.thod(ARAS)and com.lex p.op.rtional assessm.nt(COp.AS)have been utilized to identify the op.im.l conditions for m.lling AZ91 m.gnesium.alloy under both dry and cryogenic *** of LN_(2)during m.chining,resulted in reduction in m.chining tem.erature by up.o 29%with a tem.erature drop.from.251.2℃under dry condition to 178.5℃in cryogenic *** showed the advantage of p.rform.ng cryogenic m.lling in im.roving the surface integrity to a significant *** m.chining considerably m.nim.zed the roughness by up.o 28%and m.xim.sed the m.crohardness by up.o 23%,when com.ared to dry *** sp.ed has caused significant im.act on surface roughness(95.33%-dry,92.92%-cryogenic)and surface m.crohardness(80.33%-dry,82.15%-cryogenic).Due to the reduction in m.chining tem.erature,cryogenic condition resulted in com.ressive residual stresses(m.xim.m.║=-113 m.a)on the alloy *** indicate no

关键词： m.gnesium.alloy Cryogenic m.chining Roughness m.crohardness m.crostructure Residual stress m.lti criteria decision m.king