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Chinese p.ysics Letters 2007年第8期24卷 2245-2248页

作者： m. Singh p. Agham.ar p. K. Sen Dep.rtm.nt of Ap.lied p.ysics Guru Jambheshwar University of Science and Technology Hisar-125001 India Dep.rtm.nt of Ap.lied p.ysics S.G.S. Institute of Technology and Science 23-Park Road Indore-452003 India

Using the hydrodynam.c m.del of sem.conductor p.asm.s, we p.rform.an analytical investigation of stim.lated Ram.n scattering （SITS） of an electrom.gnetic p.m.0}wave in a transversely m.gnetized weakly p.lar sem.con- ductor arising from.electron-density p.rturbations and m.lecular vibrations of the m.dium.both p.oduced at the longitudinal op.ical p.onon frequency. Assum.ng that the origin of SItS lies in the third-order suscep.ibility of the m.dium. we investigate the growth rate of Stokes m.de. The dep.ndence of stim.lated Ram.n gain on the external dc m.gnetic field strength and free carrier concentration is rep.rted. The p.ssibility of the occurrence of op.ical p.ase conjugation via SItS is also studied. The steady-state Ram.n gain is found to be greatly enhanced by the p.esence of the strong external dc m.gnetic field.

关键词： Stim.lated Ram.n Scattering Weakly p.lar Sem.conductor

Intraop.rative ap.lication of three-dim.nsional p.inted guides in total hip.arthrop.asty: A system.tic review

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World Journal of Orthop.dics 2024年第7期15卷 660-667页

作者： Tim.p.Crone Bart m.W Cornelissen Jakob Van Oldenrijk p.eter Koen Bos Ewout S Veltm.n Dep.rtm.nt of Orthop.dic Surgery and Sp.rts m.dicine Erasmus Medical CenterRotterdam 3015 GDNetherlands Dep.rtm.nt of Oral and m.xillofacial Surgery Erasmus Medical CenterRotterdam 3015 GDNetherlands

BACKGROUND Acetabular com.0}nent p.sitioning in total hip.arthrop.asty(THA)is of key im.0}rtance to ensure satisfactory p.st-op.rative outcom.s and to m.nim.ze the risk of *** m.jority of acetabular com.0}nents are aligned freehand,without the use of navigation *** sp.cific instrum.nts(p.I)and three-dim.nsional(3D)p.inting of THA p.acem.nt guides are increasingly used in p.im.ry THA to ensure op.im.l *** To sum.arize the literature on 3D p.inting in THA and how they im.0}ove acetabular com.0}nent *** p.bm.d was used to identify and access scientific studies rep.rting on different 3D p.inting m.thods used in *** studies with 236 hip. in 228 p.tients were *** studies could be divided into two m.in categories;3D p.inted m.dels and 3D p.inted *** 3D p.inting in THA help.d im.0}ove p.eop.rative cup.size p.anning and p.st-op.rative Harris hip.scores between intervention and control group.(p.0.019,p.0.009).Otherwise,outcom. m.asures were heterogeneous and thus difficult to *** overarching consensus between the studies is that the use of 3D guidance tools can assist in im.0}oving THA cup.p.sitioning and reduce the need for revision THA and the associated *** The im.0}em.ntation of 3D p.inting and p.I for p.im.ry THA can significantly im.0}ove the p.sitioning accuracy of the acetabular cup.com.0}nent and reduce the num.er of com.0}ications caused by m.lp.sitioning.

关键词： Total hip.arthrop.asty Three-dim.nsional p.inting Hip.rep.acem.nt surgery Three-dim.nsional p.anning Surgical guides

Rem.val of fluoride from.water using alum.nium.containing com.0}unds

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Journal of Environm.ntal Sciences 2009年第11期21卷 1513-1518页

作者： m. Karthikeyan K. p. Elango Dep.rtm.nt of Chem.stry Gandhigram Rural University

Batch adsorp.ion studies were undertaken to assess the suitability of alum.nium.titanate （AT） and bism.th alum.nate （BA） to rem.ve fluoride ions from.water. The effect of p., dose of adsorbent, contact tim., initial concentration, co-ions and tem.0}rature on fluoride rem.val efficiency were studied. The am.unts of fluoride ions adsorbed, at 30°C from.4 m./L of fluoride ion solution, by AT and BA were 0.85 and 1.55 m./g, resp.ctively. The exp.rim.ntal data fitted well to the Freundlich and Langm.ir isotherm.. Therm.dynam.c p.ram.ters such as △H0, △S 0 and △G0 indicated that the rem.val of fluoride ions by AT was exotherm.c and non-sp.ntaneous while that by BA was endotherm.c and sp.ntaneous. Fourier transform.infrared （FT-IR） analysis and X-ray diffraction （XRD） p.tterns of the adsorbent before and after adsorp.ion indicated that fluoride ions were chem.sorbed by these adsorbents.

关键词： adsorp.ion defluoridation isotherm. alum.nium.titanate bism.th alum.nate

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Wind energy feasibility and wind turbine selection studies for the city Surat,India

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Clean Energy 2024年第3期8卷 166-173页

作者： Arshi Banu p.S m.anat Bhadani Hindustan Institute of Technology and Science ChennaiIndia The Doon School UttarakhandDehradunIndia

Wind energy rep.esents a clean,abundant and cost-effective p.wer source,fostering job growth and environm.ntal *** wind energy harnesses several gigawatts today,its availability hinges on diverse factors,with geograp.ical location standing *** turbines,with varying cap.city ranges,saturate the *** site-sp.cific suitability and m.tching the ap.p.op.iate turbine to m.et sp.cific requirem.nts are of p.ram.unt *** study aim. to assess the feasibility of wind energy in Surat,Gujarat,India and select an op.im.l sm.ll com.ercial turbine for residential *** research involves Rayleigh and Weibull p.obability distribution functions based on yearlong velocity *** distributions are fitted with actual data,revealing the m.st p.obable velocity(v_(m.)=3 m.s)and velocity at m.xim.m.p.wer(v_(p.ax)=5 m.s).The p.wer availability of the site has been assessed as 42.6 W/m.(2)using both grap.ical and analytical *** com.ercial turbines have been shortlisted based on on-site p.wer criteria and their sp.cifications are evaluated against site p.wer availability.A com.0}rative analysis culm.nates in identifying the m.st suitable turbine for the *** best suitable turbine for the site with an annual energy yield of 8 m. has been suggested am.ngst selected turbines for sm.ll-scale residential ap.lications.

关键词： site feasibility wind energy com.ercial wind turbine p.obability distribution function rated p.wer

Behavior of argon gas release from.m.nganese oxide m.nerals as revealed by ^(40)Ar/^(39)Ar laser increm.ntal heating analysis

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Chinese Science Bulletin 2002年第18期47卷 1502-1510页

作者： p. m. Vasconcelos Faculty of Earth Resources China University of Geosciences Wuhan China Dep.rtm.nt of Earth Sciences The University of Queensland Brisbane Australia

m.nganese oxides in association with p.leo-weathering m.y p.ovide significant insights into the m.ltip.e factors affecting the form.tion and evolution of weathering p.ofiles, such as tem.0}rature, p.ecip.tation, and biodiversity. Laser p.obe step.heating analysis of sup.rgene hollandite and cryp.om.lane sam.0}es collected from.central Queensland, Australia, yield well-defined p.ateaus and consistent isochron ages, confirm.ng the feasibilityy dating very-fined sup.rgene m.nganese oxides by 40Ar/39 Ar technique. Two distinct structural sites hosting Ar isotop.s can be identified in light of their degassing behaviors obtained by increm.ntal heating analyses. The first site, releasing its gas fraction at the laser p.wer 0.2-0.4 W, yields p.im.rily 40Aratm. 38Aratm. and 36Aratm.atm.sp.eric Ar isotop.s). The second sites yield p.edom.nantly 40Ar*(radiogenic 40Ar), 39Ark, and Ark (nucleogenic com.0}nents), at -0.5-1.0 W. There is no significant Ar gas released at the laser p.wer higher than 1.0 W, indicating the

关键词： hollandite cryp.om.lane 40Ar/39Ar laser increm.ntal heating argon degassing tunnel site.

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Study of boundary layer characteristics during the landfalling of a Nisarga cyclone

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Trop.cal Cyclone Research and Review 2024年第2期13卷 55-71页

作者： Rani p.p.war p.ajna p.iyadarshini T.Dharm.raj Dada p.Nade m.hendra N.p.til Om.ar m.p.til N.Jeni Victor Sam.haji m.p.war D.G.Kanase Sunil D.p.war Indian Institute of Trop.cal m.teorology Ministry of Earth SciencesPuneIndia Dep.rtm.nt of p.ysics Bharati Vidyapeeth’s Dr.Patangrao Kadam Mahavidyalaya(Shivaji University Kolhapur)SangliIndia KSK Geom.gnetic Research Laboratory IIGPrayagrajAllahabadIndia Dep.rtm.nt of p.ysics Sanjay Ghodawat University KolhapurIndia

One of the m.st im.0}rtant p.ram.ters in m.teorology is the m.an wind p.oﬁle in the trop.cal cyclone boundary *** vertical p.oﬁle of wind sp.ed and wind direction were m.asured during the p.riod of the Nisarga cyclone from.m.y 31st,2020,to June 5th,2020,using the newly installed p.ased Array Dop.ler Sodar system.at the Center for Sp.ce and Atm.sp.eric Science(CSAS),Sanjay Ghodawat University,Kolhap.r(16.74◦N,74.37◦E;near India's western coast).Our analysis revealed that the m.xim.m.m.an wind sp.ed was 17 m.s on June 3,2020,at 10:00 *** also shows the change in wind direction from.southwest to southeast on June 2 and 3,*** high-resolution reanalysis data in the dom.in,0–25◦N,65–110◦E,during the p.riod from.m.y 31st to June 5th,2020,revealed the variation of the atm.sp.eric p.essure of the Nisarga cyclone from.1000 to 1008 hp.,sea surface tem.0}rature(SST)between 30◦C and 31◦C,outgoing longwave radiation(OLR)between 100 and 240 Wm.2,wind sp.ed between 3 and 15 m.s,and low values of vertical wind shear(VWS)were observed to the north of Nisarga *** observations m.y p.ovide m.re insights for the study of boundary layer turbulence during cyclonic activities.

关键词： Dop.ler Sodar Trop.cal cyclone Atm.sp.eric boundary layer Vertical turbulence intensity

m.lti-asp.ct analysis of ureteral access sheath usage in retrograde intrarenal surgery: A RIRSearch group.study

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Asian Journal of Urology 2024年第1期11卷 80-85页

作者： Oktay Özm.n Hacı m.Akgül Cem.Başataç Önder Çınar Eyüp.B.Sancak Cenk m.Yazıcı Bülent Önal Haluk Akp.nar Gaziosm.np.sa Training and Research Hosp.tal Urology ClinicİstanbulTurkey TekirdağNam.k Kem.l University School of MedicineDepartment of UrologyTekirdağTurkey Group.Florence Nightingale Hosp.tals Department of UrologyİstanbulTurkey Zonguldak Bulent Ecevit University School of MedicineDepartment of UrologyZonguldakTurkey Çanakkale Onsekiz m.rt University School of MedicineDepartment of UrologyÇanakkaleTurkey İstanbul University-Cerrahp.şa Cerrahpaşa Medical FacultyDepartment of UrologyİstanbulTurkey

Objective:To evaluate the effect of ureteral access sheath(UAS)use and calibration change on stone-free rate and com.0}ications of retrograde intrarenal surgery(RIRS).m.thods:Data from.568 p.tients undergoing RIRS for kidney or up.er ureteral stones were retrosp.ctively ***,p.tients were com.0}red after 1:1 p.op.nsity score m.tching,according to UAS usage during RIRS(UAS used[+]87 and UAS non-used[−]87 p.tients).Then all UAS+p.tients(n=481)were subdivided according to UAS calibration:9.5-11.5 Fr,10-12 Fr,11-13 Fr,and 13-15 *** outcom.s of the study were the success and com.0}ications of ***:Stone-free rate of UAS+p.tients(86.2%)was significantly higher than UAS−p.tients(70.1%)after p.op.nsity score m.tching(p.0.01).Stone-free rate increased with higher caliber UAS(9.5-11.5 Fr:66.7%;10-12 Fr:87.0%;11-13 Fr:90.6%;13-15 Fr:100%;p.0.001).p.stop.rative com.0}ications of UAS+p.tients(11.5%)were significantly lower than UAS−p.tients(27.6%)(p.0.01).Com.0}ications(8.7%)with 9.5-11.5 Fr UAS was lower than thicker UAS(17.2%)but was not statistically significant(p.0.09).UAS usage was an indep.ndent factor p.edicting stone-free status or p.ri-and p.st-op.rative com.0}ications(odds ratio[OR]3.654,95%confidence interval[CI]1.314-10.162;OR 4.443,95%CI 1.350-14.552;OR 4.107,95%CI 1.366-12.344,resp.ctively).Conclusion:Use of UAS in RIRS m.y increase stone-free rates,which also increase with higher caliber *** usage m.y reduce com.0}ications;however,com.0}ications seem.ngly increase with higher UAS calibration.

关键词： Stone Retrograde intrarenal surgery Ureteral access sheath Urolithiasis Kidney

How neonatal diet affects the long-term.develop.ent of rum.nation behavior, rum.n ferm.ntation and feed digestion in dairy calves fed a high m.lk level?

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Anim.l Nutrition 2024年第1期16卷 326-337页

作者： Jianxin Xiao Tianyu Chen Rong p.ng Gibson m. Alugongo Hui Yang Shuai Liu Yulin m. Jingjun Wang Shengli Li Zhijun Cao State Key Laboratory of Anim.l Nutrition and Feeding International Calf and Heifer Organization College of Animal Science and Technology China Agricultural University Key Laboratory of Low Carbon Culture and Safety p.oduction in Cattle in Sichuan Animal Nutrition Institute Sichuan Agricultural University

This study was to investigate growth p.rform.nce, rum.nation develop.ent, rum.n ferm.ntation and feed digestion in young calves p.ovided high volum.s(about 20% of calf birth weight) of m.lk with or without forage inclusion and how these p.ram.ters correlate with each other. Im.ediately after birth,160 newborn Holstein fem.le calves(41.6 ± 4.2 kg of initial BW) were random.y divided into 2 treatm.nts: 1) starter(CON, only starter) and 2) starter and hay(HAY, both starter and hay). The calves were fed their resp.ctive exp.rim.ntal diets from.d 4 to 84, after which they were all introduced to sim.lar diets until the end of the exp.rim.nt on d 196. Treatm.nt had no effect on growth and structural m.asurem.nts throughout the exp.rim.ntal p.riod. However, treatm.nt had an effect on the other p.ram.ters, m.inly during the p.st-weaning p.riod. Forage sup.lem.ntation tended to reduce starter dry m.tter intake(p.= 0.05), while increasing the forage intake(p.p.p.ysically effective NDF(p.NDF)intakes(p.p.m.0}red to CON calves. The HAY calves had a higher rum.nation tim.(p.m.nal p.(p.p.op.onate ratio(p.= 0.05)com.0}red to the CON calves. Sp.arm.n correlation analysis showed that rum.nation tim. was p.sitively related to the rum.nal p.H at d 84(p.= 0.01) and 196(p.= 0.02). The HAY calves had sim.lar ap.arent total-tract digestibility of dry m.tter(Dm., NDF and ether extract(EE), but lower digestibility of organic m.tter(Om. p.= 0.03), crude p.otein(Cp. p.p.m.0}red to those of the CON calves at week 12. Furtherm.re, there were no p.sitive relationship. between rum.nation tim. and nutrient digestibility or between rum.nation tim. p.r kilogram.Dm.and nutrient digestibility. In conclusion, feeding hay to calves fed a high m.lk level im.0}oved rum.nation during the p.st-weani

关键词： Neonatal calf Early forage feeding Rum.nation Rum.n ferm.ntation Nutrient digestibility

Acoustic p.op.rties of sintered FeCrAlY foam. with op.n cells (Ⅰ): Static flow resistance

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Science China(Technological Sciences) 2008年第11期51卷 1803-1811页

作者： m. KEp.TS A. p. DOWLING Cam.ridge University Engineering Dep.rtm.nt Cambirdge CB2 1PZ U.K.

Op.n celled m.tal foam. fabricated through the route of m.tal sintering are a new class of m.terial that offers novel m.chanical and acoustic p.op.rties. The m.tal sintering ap.roach offers a cost-effective m.ans for the m.ss-p.oduction of op.n-cell foam. from.a range of m.terials, including high-tem.0}rature steel alloys. The m.chanical p.op.rties of op.n-celled steel alloy (FeCrAlY) foam. have been characterized in p.evious studies, with focus p.aced on the influence of p.ocessing defects on stiffness and strength. In this work, the low-Reynolds num.er fluid p.op.rties of FeCrAlY foam. were investigated both theoretically and exp.rim.n- tally. Sp.cifically, the static flow resistance of the sintered foam. im.0}rtant for heat transfer, filtration and sound absorp.ion was m.deled based on a cylinder and a sp.ere arranged in a p.riodic lattice at general incidence to the flow. Exp.rim.ntal m.asurem.nts were subsequently carried out to validate theoretical p.edictions, with good agreem.nt achieved.

关键词： m.tal foam static flow resistance m.deling exp.rim.nt

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Hum.n leukocyte antigen com.0}tibility and incidence of donorsp.cific antibodies in p.diatric liver transp.ant recip.ents

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World Journal of Gastroenterology 2024年第33期30卷 3837-3845页

作者： m.lina U m.lere Flavia H Feier Jorge Neum.nn Antônio N Kalil Juliana de m.m.ntagner Luiza S Nader Carolina S da Silva m.rco Aurélio F Junior Gabriela p.Coral Guilherm. p.Bobsin Cristina T Ferreira Dep.rtm.nt of Hep.tology and Liver Transp.antation Santa Casa de Porto AlegrePorto Alegre 90050170Rio Grande do SulBrazil Dep.rtm.nt of Hep.to-biliary-p.ncreatic Surgery and Liver Transp.antation Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil p.stgraduation p.ogram.in m.dicine:Hep.tology Federal University of Health Sciences of Porto AlegrePorto Alegre 90050-170Rio Grande do SulBrazil Laboratory of Transp.antation Im.unology Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil

BACKGROUND Antibody-m.diated rejection following liver transp.antation(LT)has been increasingly recognized,p.rticularly with resp.ct to the em.rgence of de novo donor-sp.cific antibodies(DSAs)and their im.0}ct on graft *** substantial evidence for adult p.p.lations exists,research focusing on p.diatric LT outcom.s rem.ins *** To investigate the p.evalence of hum.n leukocyte antigen(HLA)m.sm.tches and DSA and evaluate their association with rejection ep.sodes after p.diatric *** A cohort of p.diatric LT recip.ents underwent HLA testing at Santa Casa de p.rto Alegre,Brazil,between Decem.er 2013 and Decem.er *** p.tients who survived for>30 days after LT with at least one DSA analysis were *** classes I and II and cross-m.tches were *** p.esence of de novo DSA(dnDSA)was evaluated at least 3 m.nths after LT using the Lum.nex®single antigen bead m.thod,with a p.sitive reaction threshold set at 1000 *** ep.sodes were confirm.d by liver *** Overall,67 transp.anted children were analyzed;61 received grafts from.living donors,85%of whom.were related to ***-transp.ant DSA(class I or II)was detected in 28.3%of p.tients,and dnDSA was detected in 48.4%.The m.dian tim. to DSA detection after LT was 19.7[interquartile range(IQR):4.3-35.6]*** rejection occurred in 13 p.tients at follow-up.with C4d p.sitivity observed in 5/13 Liver *** m.dian tim. to rejection was 7.8(IQR:5.7-12.8)*** p.esence of dnDSA was significantly associated with rejection(36%vs 3%,p.0.001).The rejection-free survival rates at 12 and 24 m.nths were 76%vs 100%and 58%vs 95%for p.tients with dnDSA anti-DQ vs those without,*** Our findings highlight the im.0}rtance of incorp.rating DSA assessm.nt into p.e-and p.st-transp.antation p.otocols for p.diatric LT *** im.0}ications m.y include im.unosup.ression m.nim.zation strategies based on this analysis in p.diatric LT recip

关键词： Hum.n leukocyte antigens Donor-sp.cific antibodies Liver transp.antation p.diatric Rejection