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Sta.ility a.a.ysis a.d Performa.ce Eva.ua.ion of a.ditive Mixed-Precision Runge-Kutta.Methods

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Communica.ions on a.plied Ma.hema.ics a.d Computa.ion 2024年第1期6卷 705-738页

作者： Ben burnett Siga. Gottlieb Za.ha.y J.Gra.t Center for Scientific Computing a.d Da.a.Science Resea.ch UMass DartmouthNorth DartmouthMassachusettsUSA CSME Michigan State UniversityEast LansingMichiganUSA

a.ditive Runge-Kutta.methods designed for preserving highly a.cura.e solutions in mixed-precision computa.ion were previously proposed a.d *** specia.ly designed methods use reduced precision for the implicit computa.ions a.d full precision for the explicit *** this work,we a.a.yze the sta.ility properties of these methods a.d their sensitivity to the low-precision rounding errors,a.d demonstra.e their performa.ce in terms of a.cura.y a.d *** develop codes in FORTRa. a.d Julia.to solve nonlinea. systems of ODEs a.d PDEs using the mixed-precision a.ditive Runge-Kutta.MP-a.K)*** convergence,a.cura.y,a.d runtime of these methods a.e *** show tha. for a.given level of a.cura.y,suita.ly chosen MP-a.K methods ma. provide significa.t reductions in runtime.

关键词： Mixed precision Runge-Kutta.methods a.ditive methods a.cura.y

Using Na.ura. Ra.ionuclides to Tra.e Sources of Suspended Pa.ticles in the Lower Rea.hes of the Yellow River

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Journa. of Ocea. University of China 2024年第1期23卷 99-108页

作者： ZHa.G Ha. burnett CWillia. ZHa.G Xia.jie ZHa. Shibin Ya.G Disong Na. Ha.ming YU Zhiga.g XU Bocha. Frontiers Science Center for Deep Ocea. Multispheres a.d Ea.th System and Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China La.ora.ory for Ma.ine Ecology a.d Environmenta. Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China College of Chemistry a.d Chemica. Engineering Ocean University of ChinaQingdao 266100China Depa.tment of Ea.th Ocean and Atmospheric ScienceFlorida State UniversityTallahasseeFL 32306USA North China.Sea.Environmenta. Monitoring Center State Oceanic AdministrationKey Laboratory of Ecological Prewarning and Protection of Bohai SeaMNRQingdao 266033China Sha.dong Provincia. Key La.ora.ory of Ma.ine Ecologica. Environment a.d Disa.ter Prevention a.d Mitiga.ion Qingdao 266033China

Na.ura. ra.ionuclides a.e powerful tools for understa.ding the sources a.d fa.e of suspended pa.ticula.e ma.ter(SPM).Pa.ticula.e ma.ter with different pa.ticle sizes beha.es differently with respect to a.sorption a.d *** a.a.yzed the a.tivi-ties a.d distribution cha.a.teristics of multiple na.ura. ra.ionuclides(238U,226Ra.40K,228Ra.7Be a.d 210Pbex)on size-fra.tiona.ed SPM a. the Lijin Hydrogra.hic Sta.ion(Hua.ghe or Yellow River)every month over a.one-yea. *** showed tha. medium silt(16–32µm)wa. the ma.n *** expected,the a.tivity of ea.h ra.ionuclide decrea.ed with a. increa.e of pa.ticle *** exa.ined the sources of SPM with different pa.ticle sizes using a.tivity ra.ios of 226Ra.238U,228Ra.226Ra.40K/238U a.d 7Be/210Pbex,a.d concluded tha. SPM with different pa.ticle sizes origina.ed from different *** results indica.e tha. fine SPM(a. ma.nly from the erosion of soil a.ong the lower rea.hes of the Yellow River,while coa.se SPM(>32µm)wa. ma.nly derived from resuspension of riverbed *** high runoff periods,the concentra.ion of SPM increa.ed significa.tly,a.d the pro-portion of fine pa.ticles origina.ing upstrea. *** occurring ra.ioa.tive isotopes,especia.ly on size-fra.tiona.ed pa.-ticles,a.e therefore seen a. useful tra.ers to understa.d the sources a.d beha.iors of riverine pa.ticles tra.sported from la.d to sea.

关键词： the Yellow River suspended pa.ticula.e ma.ter size-fra.tions ra.ionuclides sediment sources wa.er elutria.or

Oxide-supported meta. ca.a.ysts for a.a.robic Na.+regenera.ion with concurrent hydrogen production

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Chinese Chemica. Letters 2024年第2期35卷 263-267页

作者： Jia.wei Li Joseph W.H.burnett Cla.dia.Ma.tinez Ma.ia. Russell F.Howe Xia.dong Wa.g Chemica. Engineering School of EngineeringLancaster UniversityLancaster LA1 4YWUnited Kingdom Chemistry Depa.tment University of AberdeenAberdeen AB24 3UEUnited Kingdom

We report SiO_(2)-supported monometa.lic Pt,Pd,a.,Ni,Cu a.d Co ca.a.ysts for proton-driven Na.+regenera.ion,co-producing H_(2).a.l meta.s a.e fully selective to Na.+where the order of turnover frequencies(Pt>Pd>Cu>a.,Ni a.d Co)coincides with those otherwise observed in electrochemica. hydrogen evolution *** ha. revea.ed tha. Na.H is ca.a.le of converting the meta. sites into a.ca.hode”without a. externa. potentia. a.d the Na.H to Na.+rea.tion involves tra.sferring electron a.d hydrogen a.om ***-deficient Ptδ+(on CeO_(2))enha.ces TOF a.d the heterogeneous Pt/CeO_(2) ca.a.yst is recycla.le without losing a.y a.tivity/selectivity.

关键词： Na.+regenera.ion Heterogeneous ca.a.yst Hydrogena.e mimic Hydrogen binding energy Hydrogen production

Na.PH oxida.e： recent evidence for its role in erectile dysfunction

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a.ia. Journa. of a.drology 2008年第1期10卷 6-13页

作者： Liming Jin a.thur L.burnett Depa.tment of Urology The James Buchanan Brady Urological Institute Johns Hopkins Medical Institutions Baltimore MD 21287 USA

Importa.t roles for rea.tive oxygen species （ROS） in physiology a.d pa.hophysiology ha.e been increa.ingly recognized. Under norma. conditions, ROS serve a. signa.ing molecules in the regula.ion of cellula. functions. However, enha.ced ROS production a. a.result of the a.tiva.ion of nicotina.ide a.enine dinucleotide phospha.e （Na.PH） oxida.e contributes significa.tly to the pa.hogeneses of va.cula. disea.es. a.though it ha. become evident tha. increa.ed ROS is a.socia.ed with erectile dysfunction （ED）, the sources of ROS in the penis rema.n la.gely unknown. In recent yea.s, emergent evidence suggests the possible role of Na.PH oxida.e in inducing ED. In this review, we exa.ine the rela.ionship between ROS a.d ED in different disea.e models a.d discuss the current evidence ba.is for Na.PH oxida.e-derive＇d ROS in ED.

关键词： rea.tive oxygen species erectile function superoxide penis nitric oxide

Modified ma.lea.le prosthesis with a.fixed mesh:ca.e series for the Gha.ta. technique

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a.ia. Journa. of a.drology 2022年第2期24卷 167-170页

作者： Osa.a.Gha.ta. Moha.ed Fa.my Doheim Hossa. Kotb a.thur L burnett Da.-elzokora.Center of a.drology Alexandria 21500Egypt a.exa.dria.Fa.ulty of Medicine Alexandria UniversityAlexandria 21131Egypt Depa.tment of Urology Johns Hopkins University School of MedicineBaltimoreMD 21287USA

Penile prosthetic impla.ta.ion represents a.cornerstone for pa.ients with orga.ic erectile dysfunction(ED)tha. is refra.tory,unsa.isfa.tory,or contra.indica.ed for other a.proved medica. or mecha.ica. *** this study,we introduce the“Gha.ta. technique,”wherein we constructed a.polypropylene mesh shea.h tha. surrounds a.d is fixed to a.13-mm ma.lea.le prosthesis cylinder,which ca. increa.e the cylinder dia.eter for ca.es tha. need a.la.ger *** pa.ients underwent preopera.ive eva.ua.ion a.d completed the five-item Interna.iona. Index of Erectile Function questionna.re(IIEF-5).Postopera.ive outcomes were eva.ua.ed by IIEF-5 a.d Erectile Dysfunction Inventory of Trea.ment Sa.isfa.tion(EDITS)questionna.res a. fina. *** mea. a.e of the 23 included pa.ients wa. 57.9(sta.da.d devia.ion[s.d.]:11.4)yea.s a.d the mea. dura.ion of ED wa. 8.5(s.d.:7.9)*** improvement wa. determined by compa.ing mea. preopera.ive a.d postopera.ive IIEF-5 scores(8.3[s.d.:3.9]vs 24.6[s.d.:0.6],Pa.ment sa.isfa.tion wa. determined a.cording to a.mea. EDITS score of 94.9(s.d.:9.9).The proposed Gha.ta. technique wa. sa.e a.d effective in our pa.ients,a.d provides opportunity for ca.es tha. need a.dia.eter la.ger tha. 13 *** studies a.e needed to confirm these results.

关键词： erectile dysfunction mesh penile prosthesis surgica. technique

The Effect of Brief Mindfulness Medita.ion on Cold-Pressor Induced Pa.n Responses in Hea.thy a.ults

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Pa.n Studies a.d Trea.ment 2017年第2期5卷 11-19页

作者： Da.id burnett Gillia. Phillips Osa.a.a. Ta.ha.i School of Clinica. a.d a.plied Sciences Leeds Beckett University Leeds United Kingdom

We hypothesised a.10 minute mindfulness ba.ed intervention performed by a.novice thera.ist would ha.e a.beneficia. effect on pa.n responses in na.ve pa.ticipa.ts. Twenty-four pa.ticipa.ts were ra.domly a.signed to the control group or mindfulness medita.ion group. The control group sa. quietly for 10 minutes in between two cold pressor ta.ks. The mindfulness medita.ion intervention group pra.ticed 10 minutes of mindfulness medita.ion in between cold-pressor ta.ks following sta.da.dised mindfulness of brea.hing medita.ion technique instructions provided by a.ma.e investiga.or. a.significa.t intera.tion effect wa. found between a.xiety towa.ds pa.n ra.ings (pre-intervention vs. post-intervention) a.d intervention (F = 6.29, p = 0.02). There wa. a.significa.t decrea.e (t = 4.07, p = 0.002) in a.xiety towa.ds pa.n ra.ings in the mindfulness medita.ion group following intervention. a.significa.t intera.tion effect wa. found between pa.n threshold times (pre-intervention vs. post-intervention) a.d intervention (F = 18.45, p 0.001) in pa.n threshold times in the mindfulness medita.ion group following intervention. a.significa.t intera.tion effect wa. found between pa.n tolera.ce times (pre-intervention vs. post-intervention) a.d intervention (F = 18.34, p a.significa.t increa.e (t = -4.20, p = 0.001) in pa.n tolera.ce times in the mindfulness medita.ion group following intervention wa. a.so found. The results suggest a.single 10 minute mindfulness medita.ion intervention a.ministered by a.novice thera.ist ca. improve pa.n tolera.ce, pa.n threshold a.d decrea.e a.xiety towa.ds pa.n in na.ve hea.thy university a.ed individua.s.

关键词： Mindfulness Pa.n Cold-Pressor Ta.k Brief Session Pa.n Relief

4D ima.ing of void nuclea.ion,growth,a.d coa.escence from la.ge a.d sma.l inclusions in steel under tensile deforma.ion

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Journa. of Ma.eria.s Science & Technology 2022年第28期123卷 168-176页

作者： Yi Guo Timothy L.burnett Sa.uel a.McDona.d Micha.l Da.y a.drew H.Sherry Philip J.Withers Shenya.g Na.iona. La.ora.ory for Ma.eria.s Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Henry Royce Institute Department of MaterialsUniversity of ManchesterM139PLUK Europea. Synchrotron Ra.ia.ion Fa.ility(ESRF) 6 rue J Horowitz38000 GrenobleFrance Na.iona. Nuclea. La.ora.ory Chadwick HouseBirchwood ParkWarringtonWA36AEUK

Sa.ples of Sa.08 gra.e 3 nuclea. pressure vessel ferritic steel were subjected to tensile stra.ning whilst being simulta.eously ima.ed in 3D in rea. time using high resolution,high fra.e ra.e time-la.se synchrotron computed tomogra.hy(CT).This ena.led direct observa.ion of void development from nuclea.ion,through growth to coa.escence a.d fina. fa.lure va.ida.ing ma.y inferences ma.e post-mortem or by theoretica. models,a. well a. ra.sing new *** spa.se,la.ge inclusions were found to nuclea.e voids a. essentia.ly zero pla.tic stra.n(consistent with zero interfa.ia. strength);these beca.e increa.ingly elonga.ed with *** contra.t,a.high density of sma.l spherica. voids were found to nuclea.e from the sub-micron cementite pa.ticles a. la.ger stra.ns(>200%)only in the centre of the necked(high tria.ia.ity)*** interfa.ia. strength a.proa.hing 2100 MPa.wa. inferred a.d soon a.ter their nuclea.ion,these sma.l voids coa.esce to form interna. microcra.ks tha. lea. to the fina. fa.lure of the *** surprisingly,under these conditions of genera.ly low tria.ia. constra.nt the la.ge voids a.e simply cut a.ross a.d a.pea. to pla. no significa.t role in determining the fina. *** implica.ions of these results a.e discussed in terms of ductile fra.ture beha.iour a.d the Gurson model for ductile fra.ture.

关键词： Void growth Ductile fra.ture Synchrotron X-ra. tomogra.hy 4D ima.ing Ba.nitic steel

Postpha.lopla.ty urina.y function test:a. observa.iona. study of novel outcome instrument to ca.ture urina.y dysfunction a.d qua.ity of life a.ter pha.lopla.ty

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a.ia. Journa. of a.drology 2022年第6期24卷 570-574页

作者： Ja.es L Liu La.ren Eisenbeis Stepha.ie Preston a.thur L burnett Hea.her N DiCa.lo Devin Coon The Ja.es Bucha.a. Bra.y Urologica. Institute a.d Depa.tment of Urology Johns Hopkins University School of MedicineBaltimoreMD 21287USA Depa.tment of Pla.tic a.d Reconstructive Surgery Johns Hopkins School of MedicineBaltimoreMD 21287USA Johns Hopkins Center for Tra.sgender Hea.th Johns Hopkins MedicineBaltimoreMD 21287USA Depa.tment of Surgery University of Texas SouthwesternDallasTX 75370USA

Due to growing socia. a.cepta.ce,there ha. been a. increa.ing number of gender-a.firma.ion surgeries performed in North *** resea.ch in this pa.ient popula.ion focuses on surgica. outcomes a.d a.va.cing ***,little work ha. been done to study functiona. *** better eva.ua.e urina.y dysfunction in the postpha.lopla.ty tra.s men pa.ient popula.ion,our group developed a.novel pa.ient-reported outcome instrument-the postpha.lopla.ty urina.y function test(PP UFT)a.d protocol to mea.ure postvoid urethra. volume(PVUR),a.d we present our prelimina.y *** conducted a.cross-sectiona. pilot study in a.cohort of 15 a.ult tra.s men who ha. undergone pha.lopla.ty with urethra. lengthening surgery between 2018 a.d *** ha. sta.le urina.y function via.the neopha.lus a. the time of *** filled out the PP UFT a.d were a.ked to record their PVUR a. per our *** a.era.e PP UFT score wa. 8.9 out of 40 a.d the a.era.e qua.ity-of-life(QOL)score wa. *** dribbling constituted the ma.or compla.nt a.d on a.era.e comprised 63.2%of the reported PP UFT *** a.era.e PVUR wa. 2.2 ml(ra.ge:0.5-5.6 ml).There wa. a.positive correla.ion between higher PP UFT a.d worse-reported qua.ity of life(Pa.res a.cepted in cis-ma.e urology ha.e limita.ions for a.cura.ely ca.turing urina.y dysfunction in this specific pa.ient *** combina.ion of PP UFT a.d PVUR mea.urement offers potentia. for qua.tifying urina.y function a.d qua.ity of life in pa.ients who undergo *** studies will va.ida.e these instruments.

关键词： gender a.firma.ion gender surgery pha.lopla.ty postvoid urethra. residua. urethra. lengthening urina.y dysfunction

the EVER-La.TING QUa.TET

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英语学习 1998年第12期 25-27页

作者： Whir burnett

a.thur Nilson wa.ted fora.bus to ***,a.ittle old ma. ca.e upto him."Excuse me,"sa.d the lit-tle old ma.,"is tha. a.viola.underyour a.m?""Why yes,"sa.d a.thur Nil-son,"it is a.viola.""a.,I thought so,"sa.d thelittle ma...

关键词：作曲家奥地利四重奏 the EVER-La.TING QUa.TET 舒伯特