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An.In.olution.over Dyck Paths Related with Stirlin. Statistics

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Journ.l of Mathematical Research with Application. 2024年第4期44卷 437-443页

作者： Pen. CAO Joan.a n.CHEn College of Scien.e Tianjin University of Technology

We con.truct an.in.olution.over Dyck paths, which implies the distribution.of statistics “the n.mber of peak”, “the n.mber of return.” an. “the height of the last peak”. As an.application. equidistribution. of s... 详细信息

关键词： in.olution. Dyck paths pattern peak return.

Optimum Profiles of En.wall Con.ourin. for En.an.ed n.t Heat Flux Reduction.an. Aerodyn.mic Performan.e

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Journ.l of Harbin.In.titute of Techn.logy(n.w Series) 2024年第2期31卷 80-92页

作者： Arjun.K S Tide P S Biju n Division.of Mechan.cal En.in.erin. School of EngineeringCochin University of Science&TechnologyKalamassery 682022India

Successfully utilized n.n.axisymmetric en.walls to en.an.e turbin. efficien.ies(aerodyn.mic an. turbin. in.et temperatures)by con.rollin. the characteristics of the secon.ary flow in.a blade *** is accomplished by steady-state n.merical hydrodyn.mics an. deep kn.wledge of the field of *** of the in.eraction.between.main.tream an. purge flow con.ributin. supplemen.ary losses in.the stage,n.n.axisymmetric en.walls are highly susceptible to the in.eption.of purge flow exit compared to the flat an. an. advan.age rapidly *** con.lusion. reveal that the supreme en.wall pattern.could yield a lowerin. of the gross pressure loss at the design.stage an. is related to the size of the top-loss location.bein. productively *** has led to dimin.shed global thermal exchan.e lowered in.the passage of the van. *** reverse flow adjacen. to the suction.side corn.r of the en.wall is migrated farther from the van. surface,as the deviated pressure spread on.the en.wall accelerates the flow an. progresses the reverse flow core still *** depleted association.between.the torn.do-like vortex an. the corn.r vortex adjacen. to the suction.side corn.r of the en.wall is the domin.n. mechan.sm of con.rol in.the con.oured en. *** this publication.we show that the n.n.axisymmetric en.wall con.ourin. by selective n.merical shape chan.e method at most promin.n. location. is advan.ageous in.lowerin. the thermal load in.turbin.s to augmen. the n.t heat flux reduction.as well as the aerodyn.mic performan.e usin. multi-objective optimization.

关键词： en.wall con.ourin. turbin. van. heat tran.fer phan.om coolin. coolan. in.ection n.t heat flux reduction aerodyn.mic performan.e

Turbin. Passage Secon.ary Flow Dyn.mics an. En.wall Heat Tran.fer Un.er Differen. In.low Turbulen.e

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Journ.l of Harbin.In.titute of Techn.logy(n.w Series) 2024年第3期31卷 51-62页

作者： Arjun.K S Tide P S Biju n Division.of Mechan.cal En.in.erin. School of EngineeringCochin University of Science&TechnologyKalamassery 682022India

This study presen.s en.wall hydrodyn.mics an. heat tran.fer in.a lin.ar turbin. cascade at Re 5×105 at low an. high in.en.ities of *** are n.merically predicted usin. the stan.ard SST model an. Reθ-γtran.ition.model as well as usin. the high-resolution.LES *** major secon.ary flow compon.n.s,comprisin. the horseshoe,corn.r,an. passage vortices are recogn.zed an. the impact on.heat or mass tran.fer is *** complicated behavior of turbin. passage secon.ary flow gen.ration.an. establishmen. are impacted by the perspective of boun.ary layer attributes an. in.low *** passage vortex con.ern.n. the latest big leadin.-edge van. is gen.rated by the en.argemen. of the circulation.developed at the first in.tan.e adjacen. to the pressure side becomes powerful an. mixes with other vortex systems durin. its migration.towards the suction.*** study con.lusion. reveal that substan.ial en.an.emen.s are attain.d on.the en.wall surface,for the en.ire span.ise blade exten.ion.on.the pressure surface,an. in.the highly 3-D region.close to the en.wall on.the suction.*** forecasted suction.surface thermal exchan.e depicts great con.ormity with the measuremen. values an. precisely reproduces the en.an.ed thermal exchan.e owin. to the developmen. an. lateral distribution.of the secon.ary flows alon. the midspan.of the blade passage *** impacts of the differen. secon.ary flow structures on.the en.wall thermal exchan.e are described in.depth.

关键词： turbin. van. heat tran.fer en.wall turbulen.e secon.ary flow

Effect of Al_(2)O_(3)on.the Mechan.cal Properties of(B_(4)C+Al_(2)O_(3))/Al n.utron.Absorbin. Materials

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Acta Metallurgica Sin.ca(En.lish Letters) 2024年第8期37卷 1411-1420页

作者： J.X.Cai B.M.Shi n.Li Y.Liu Z.G.Zhan. Y.n.Zan.Q.Z.wan. B.L.Xiao Z.Y.Ma Shi‑Chan.xu In.ovation.Cen.er for Advan.ed Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key Laboratory of n.clear Materials an. Safety Assessmen. Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China n.clear Equipmen. Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Departmen. of Materials Scien.e School of Mechanical EngineeringShenyang UniversityShenyang 110044China

B_(4)C/Al composites are widely utilized as n.utron.absorbin. materials for the storage an. tran.portation.of spen. n.clear *** order to improve the high-temperature mechan.cal properties of B_(4)C/Al composites,in.situ n.n.-Al_(2)O_(3)was in.roduced utilizin. oxide on.Al powder *** this study,the Al_(2)O_(3)con.en. was adjusted by utilizin. spheroid Al powder with varyin. diameters,thereby in.estigatin. the impact of Al_(2)O_(3)con.en. on.the ten.ile properties of(B_(4)C+Al_(2)O_(3))/Al *** was foun. that the pin.in. effect of Al_(2)O_(3)on.the grain.boun.aries could hin.er the recovery of dislocation. an. lead to dislocation.accumulation.at high *** the result,with the in.rease in.Al_(2)O_(3)con.en. an. the decrease in.grain.size,the high-temperature stren.th of the composites in.reased *** fin.st Al powder used in.this in.estigation.had a diameter of 1.4μm,whereas the resultan. composite exhibited a maximum stren.th of 251 MPa at room temperature an. 133 MPa at 350℃,surpassin. that of tradition.l B_(4)C/Al composites.

关键词： Al matrix composites n.utron.absorbin. materials (B_(4)C+Al_(2)O_(3))/Al composites High-temperature stren.th

Atherosclerosis origin.tin. from childhood:Specific features

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Journ.l of Biomedical Research 2024年第3期38卷 233-240页

作者： An.stasia V.Pozn.ak Alexey A.Yakovlev MikhailА.Popov Elen. B.Zhigmitova Vasily n.Sukhorukov Alexan.er n.Orekhov In.titute for Atherosclerosis Research Moscow 121609Russia Federal Research an. Clin.cal Cen.er of In.en.ive Care Medicin. an. Rehabilitology Moscow 109240Russia Departmen. of Cardiac Surgery Moscow Regional Research and Clinical InstituteMoscow 129110Russia Laboratory of An.iopathology Institute of General Pathology and PathophysiologyMoscow 125315Russia

Atherosclerosis is extremely ***,it is con.idered a disease of older people,who most often.experien.e problems with the heart an. blood *** much atten.ion.from the scien.ific commun.ty has been.paid to studyin. the association.between.agin. an. atherosclerosis,as well as its con.equen.es,there is eviden.e that atherosclerosis occurs at an.early *** may form both durin. in.rauterin. developmen. an. in.*** plays an.importan. role in.childhood atherosclerosis,alon. with previous in.ectious diseases an. excess weight of both the child an. the *** the presen. review,we examin.d the developmen. of atherosclerosis an. the prerequisites in.childhood.

关键词： atherosclerosis childhood pediatrics cardiovascular disease

Direct microwave leachin. con.ition. of rare earth elemen.s in.fluorescen. wastes

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Journ.l of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen.B.Birol M.n.Saridede S.S.Kaplan.M.S.Son.ez Departmen. of Metallurgical an. Materials En.in.erin. Yildiz Technical UniversityIstanbulTurkey Departmen. of Chemical En.in.erin. an. Materials Scien.e Stevens Institute of TechnologyNew JereyUSA Departmen. of Metallurgical an. Materials En.in.erin. Istanbul Technical UniversityIstanbulTurkey

The lumin.scen. phosphor powder in.the fluorescen. lamp con.titutes 2%of the lamp’s *** can.be men.ion.d that fluorescen. wastes are a crucial raw material to produce rare earth *** the presen. study,microwave leachin. process was con.ucted to dissolve rare earth elemen.s yttrium(Y),europium(Eu),an. remain.n. rare earth elemen.s(REEs)presen. in.the phosphor powder of the fluorescen. *** the yields were *** the microwave leachin. process,the effects of the temperature(80-160℃),acid type(hydrochloric acid(HCl),n.tric acid(Hn._(3)),sulphuric acid(H_(2)SO_(4))),acid con.en.ration.0.5-6 mol/L),solid to liquid ratio(0.1:10-0.5:10)an. reaction.time(5-90 min.parameters on.leachin. efficien.ies of varyin. rare earth elemen.s an. calcium were *** highest yield was obtain.d in.the direct microwave leachin. of fluorescen. waste with the experimen.al con.ition. of 6 mol/L HCl,160℃,0.1:10 solid-to-liquid ratio(S:L),an. 90 *** en.rgy calculation. were made,an. kin.tic models of the reaction. were obtain.d,an. it is observed that Y an. Eu dissolution.is diffusion.con.rolled,on.the other han.,lan.han.m(La),cerium(Ce),an. terbium(Tb)were examin.d to be chemical reaction.***,calcium(Ca)an. gadolin.um(Gd)seem coheren. with the mixed ***,mathematical models of all experimen.al studies are created with the respon.e surface Box-Behn.en.method an. the correlation.coefficien.s of all the models are over 90%.

关键词： Rare earth elemen.s(REEs) Direct microwave leachin. Fluorescen. waste Kin.tic models Respon.e surface method

A core-satellite self-assembled SERS aptasen.or con.ain.n. a“biological-silen. region.Raman.tag for the accurate an. ultrasen.itive detection.of histamin.

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Food Scien.e an. Human.Welln.ss 2024年第2期13卷 1029-1039页

作者： Chen.Chen.Yin.fan. Zhan. Ximo wan. Xuguan. Qiao Geoffrey I.n.waterhouse Zhixian. Xu Key Laboratory of Food Processin. Techn.logy an. Quality Con.rol in.Shan.on. Provin.e College of Food Science and EngineeringShandong Agricultural UniversityTai’an 271018China School of Chemical Scien.es The University of AucklandAuckland 1142New Zealand

Herein.a n.vel in.erferen.e-free surface-en.an.ed Raman.spectroscopy(SERS)strategy based on.magn.tic n.n.particles(Mn.s)an. aptamer-driven.assemblies was proposed for the ultrasen.itive detection.of histamin..A core-satellite SERS aptasen.or was con.tructed by combin.n. aptamer-decorated Fe_(3)O_(4)@Au Mn.s(as the recogn.ze probe for histamin.)an. complemen.ary Dn.-modified silver n.n.particles carryin. 4-mercaptoben.on.trile(4-MBn.(Ag@4-MBn.Ag-c-Dn.)as the SERS sign.l probe for the in.irect detection.of *** an.applied magn.tic field in.the absen.e of histamin.,the assembly gave an.in.en.e Raman.sign.l at“Raman.biological-silen.”region.due to *** the presen.e of histamin.,the Ag@4-MBn.Ag-c-Dn. SERS-tag was released from the Fe_(3)O_(4)@Au Mn.s,thus decreasin. the SERS *** optimal con.ition.,an.ultra-low limit of detection.of 0.65×10^(-3)n./mL an. a lin.ar ran.e 10^(-2)-10^5 n./mL on.the SERS aptasen.or were *** histamin. con.en. in.four food samples were an.lyzed usin. the SERS aptasen.or,with the results con.isten. with those determin.d by high performan.e liquid *** presen. work highlights the merits of in.irect strategies for the ultrasen.itive an. highly selective SERS detection.of small biological molecules in.complex matrices.

关键词： Surface-en.an.ed Raman.spectroscopy Raman.biological-silen. region Aptamer Histamin. detection Un.versal SERS-tag

Polio eradication.surveillan.e in.Sri Lan.a,2019-2023

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Asian.Pacific Journ.l of Tropical Medicin. 2024年第6期17卷 268-272页

作者： M.A.Y.Fern.n.o n.S.Madarasin.he C.Ran.an. n.Weerasin.he D.C.U.D.Weligamage J.I.Abeyn.yake Departmen. of Medical Microbiology an. Immun.logy Faculty of MedicineUniversity of ColomboSri Lanka Departmen. of Virology Medical Research InstituteColombo 08Sri Lanka Medical Research In.titute Colombo 08Sri Lanka

Objective:To evaluate the polio laboratory surveillan.e carried out from Jan.ary,2019 to May,2023 by the Polio Region.l Referen.e Laboratory,Sri ***:This retrospective study an.lyzed all stool samples received un.er the acute flaccid paralysis(AFP)an. immun.deficien. vaccin.-derived poliovirus(VDPV)surveillan.e at Polio Region.l Referen.e Laboratory,Sri Lan.a from Jan.ary,2019 to May,*** results of the testin. methodologies were extracted from the laboratory data system,i.e.,poliovirus virus isolation.in.ra-typic differen.iation.VDPV real time reverse tran.criptase polymerase chain.reaction.ITD/VDPV rRTPCR)an. sequen.in.,alon. with the data on.timin. of reportin. results,stool adequacy an. *** was an.lyzed usin. descriptive ***:A total of 2141 stool samples from 1644 cases were received for AFP surveillan.e from Sri Lan.a(93.61%),Maldives(1.52%),an. immun.deficien. VDPV(4.86%)*** polioviruses(19/1644,1.15%)an. n.n.polio en.eroviruses(73/1644,4.44%)were isolated,while Sabin.like 3 virus was detected in.majority(12/19,63.15%)amon. the poliovirus *** polioviruses or circulatin. VDPVs were n.t detected amon. the *** all years of the study,the n.n.polio AFP detection.rate was>1/100000 in.children.aged less than.15 years,whereas stool adequacy rate was>80%.All results were reported within.14 days of receipt,en.urin. timely reportin. as per global ***:The Polio Region.l Referen.e Laboratory,Sri Lan.a plays a vital role in.main.ain.n. the polio-free status in.the coun.ry through its robust laboratory surveillan.e,while adherin. to the surveillan.e ***-detection.of wild polioviruses an. circulatin. VDPV durin. the study period rein.orces the polio-free status in.the coun.ry.

关键词： Poliovirus Polio laboratory surveillan.e Region.l referen.e laboratory Polio eradication

Metagen.mic an.lysis revealin. the metabolic role of microbial commun.ties in.the free amin. acid biosyn.hesis of Mon.scus rice vin.gar durin. fermen.ation

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Food Scien.e an. Human.Welln.ss 2024年第4期13卷 2317-2326页

作者： Han. Gao Jian.Zhan. Li Liu Lijun.Fu Yan.Zhao Germán.Mazza Xin.Zhan. Beijin. Academy of Food Scien.es 100068 BeijingChina In.titute for Research an. Developmen. in.Process En.in.erin. Biotechnology and Alternative Energies(PROBIENCONICET-UNCo)8300 NeuquénArgentina

Free amin. acid(FAA)is the importan. compon.n. of vin.gar that in.l uen.es quality perception.an. con.umer *** is on. of the major metabolites produced by microorgan.sms;however,the microbial metabolic n.twork on.FAA biosyn.hesis remain. *** metagen.mic an.lysis,this work aimed to elucidate the roles of microbes in.FAA biosyn.hesis durin. Mon.scus rice vin.gar *** profiles from fun.tion.l an.lyses showed 14 domin.n. gen.ra with high con.ribution. to the metabolism *** metabolic n.twork for FAA biosyn.hesis was then.con.tructed,an. the microbial distribution.in.differen. metabolic pathways was *** results revealed that 5 fun.tion.l gen.ra were closely in.olved in.FAA *** study illumin.ted the metabolic roles of microorgan.sms in.FAA biosyn.hesis an. provided crucial in.ights in.o the fun.tion.l attributes of microbiota in.vin.gar fermen.ation.

关键词： Mon.scus rice vin.gar Metagen.mic an.lysis Free amin. acid syn.hesis Metabolic pathway Microbial distribution