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A high-order target phase approach for the station-keeping of periodic orbits

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Astrodynam.cs 2024年第1期8卷 61-75页

作者： Xiaoyu Fu nicola Baresi Roberto Arm.llin Surrey Space Centre University of SurreyGuildfordGU27XHUK Te PūnahaĀtea-Auckland Space Institute University of AucklandAuckland1010New Zealand

A novel high-order target phase approach(TPhA)for the station-keeping of periodic orbits is proposed in this *** key elem.nts of the TPhA m.thod,the phase-angle Poincare m.p and high-order m.neuver m.p,are constructed using differential algebra(DA)techniques to determ.ne station-keeping epochs and calculate correction m.neuvers.A stochastic optim.zation fram.work tailored for the TPhA-based station-keeping process is leveraged to search for fuel-optim.l and error-robust TPhA ***-satellite orbits(QSOs)around Phobos are investigated to dem.nstrate the efficacy of TPhA in m.tli-fidelity dynam.cal *** Carlo sim.lations dem.nstrated that the baseline QSO of JAXA’s m.rtian m.ons eXploration(m.X)m.ssion could be m.intained with a m.nthly m.neuver budget of approxim.tely 1 m.s.

关键词： target phase approach(TPhA) station-keeping Poincarém.p differential algebra(DA) quasi-satellite orbit(QSO)

Tuning of frictional properties in torsional contact by m.ans of disk grading

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Friction 2022年第5期10卷 787-802页

作者： Gianluca COSTAGLIOLA Federico BOSIA nicola m.pugno Civil Engineering Institute Ecole Polytechmique Federale de LausamneLausanne 1015Switzerland Departm.nt ofApplied Science and Technology Politecnico di TorinoCorso Duca degli Abruzzi 24Torino 10129Italy Laboratory for BioinspiredBionicNanoMeta Materials&MechanicsDepartment of CivilEnvironmental and Mechanical EngineeringUniversity of TrentoTrento 38123Italy School of Engineering and m.terials Science Queen Mary University of LondonLondon EI 4NSUK

The contact of two surfaces in relative rotating m.tion occurs in m.ny practical applications,from.m.chanical devices to hum.n joints,displaying an intriguing interplay of effects at the onset of sliding due to the axisym.etric stress *** and num.rical m.dels have been developed for som. typical configurations,but work rem.ins to be done to understand how to m.dify the em.rgent friction properties in this *** this paper,we extend the two-dim.nsional(2D)spring-block m.del to investigate friction between surfaces in torsional *** investigate how the m.del describes the behavior of an elastic surface slowly rotating over a rigid substrate,com.aring results with analytical calculations based on energy *** show that an appropriate grading of the tribological properties of the surface can be used to avoid a non-uniform.transition to sliding due to the axisym.etric configuration.

关键词： friction torsion num.rical sim.lations grading

Unraveling m.gnetic properties and m.rtensitic transform.tion in m.-rich Ni-m.-Sn alloys:first-principles calculations and experim.nts

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Rare m.tals 2024年第4期43卷 1769-1785页

作者： Yu Zhang Jing Bai Ke-Liang Guo Jia-Xin Xu Jiang-Long Gu nicola m.rley Qui-Zhi Gao Yu-Dong Zhang Claude Esling Xiang Zhao Liang Zuo Key Laboratory for Anisotropy and Texture of m.terials(m.nistry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang110819China Key Laboratory of Dielectric and Electrolyte Functional m.terial Hebei Province School of Resources and MaterialsNortheastern University at QinhuangdaoQinhuangdao066004China Departm.nt of m.terial Science and Engineering University of SheffieldSheffieldS13JDUK State Key Laboratory of m.tastable m.terials Science and Technology Yanshan UniversityQinhuangdao066004China Laboratoire d’Étude des m.crostructures Et de m.canique des m.tériaux University of Lorraine57045MetzFrance

We have investigated the phase stability,m.gnetic properties,and m.rtensitic transform.tion therm.dynam.cs/kinetics of the Ni_(24-x)m._(18+x+y)Sn_(6-y)(x,y=0,1,2)system.by com.ining the first-principles calculations and *** calculation results show that the optim.zed lattice param.ters are consistent with the experim.ntal ***,we obtain the relation equation for the austenite form.tion energy(E_(form.A))and m. content(X_(m.)):E_(form.A)=507.358X_(m.)-274.126,as well as for the six-layer m.dulated(6m.m.rtensite form.tion energy(E_(form.6m.)and Ni content(X_(Ni)):E_(form.6m.=-728.484X_(Ni)+*** ternary phase diagram.of the total m.gnetic m.m.nt was *** excess m. will reduce the total m.gnetic m.m.nt of 6m.m.g6m.and non-m.dulated(Nm.(m.gNm.m.rtensites,with the following equations relating the total m.gnetic m.m.nt and m. content:m.g_(6m.=-15.905X_(m.)+7.902and m.g_(Nm.=-14.781X_(m.)+7.411,while the effect on austenite is *** variation of total m.gnetic m.m.nt is m.inly dom.nated by the m. atom.c m.gnetic *** 3d electrons of m._(Sn)(m. at Sn sublattice)play an im.ortant role in m.gnetic properties from.the perspective of the electronic density of *** on the therm.dynam.cs of m.rtensitic transform.tion,the alloys will likely undergo austenite?6m.Nm.transform.tion *** the therm.dynam.c and kinetic results,the m.rtensitic transform.tion tem.erature decreases with x increasing and increases with y *** results are expected to provide reference for predicting the phase stability and m.gnetic properties of Nim.-Sn alloys.

关键词： Ni-m.-Sn First-principles calculations m.rtensitic transform.tion m.gnetic property Kinetics

Current status and developm.nt of Cm.S SiPm.for scintillator-based radiation detectors toward all-digital sensors[Invited]

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Chinese Optics Letters 2024年第2期22卷 17-27页

作者： nicola D'Ascenzo 胡文韬劳慧华越轩张博房磊奚道明郑睿邱奥 Em.nuele Antonecchia 凌怡清刘雨晴李琰俞航肖鹏谢庆国 Wuhan National Laboratory for Optoelectronics Wuhan 430074China Biom.dical Engineering Departm.nt Huazhong University of Science and TechnologyWuhan 430074China RAYQUANT Technology Co. Ltd.Ezhou 436044China RAYSOLUTION Healthcare Co. Ltd.Hefei 230000China RAYm.ASURE Technology Co. Ltd.Suzhou 215000China RAYCAN Technology Co. Ltd.Suzhou 215000China College of Com.uter Science and Software Engineering Shenzhen UniversityShenzhen 518060China

m.dern scintillator-based radiation detectors require silicon photom.ltipliers(Si Pm.)with photon detection efficiency higher than 40%at 420 nm.possibly extended to the vacuum.ultraviolet(VUV)region,single-photon tim. resolution(SPTR)m.^(2).To enable single-photon tim. stam.ing,digital electronics and sensitive m.crocells need to be integrated in the sam. Cm.S substrate,with a readout fram. rate higher than 5 m.z for arrays extending over a total area up to 4 m.×4 *** is challenging due to the increasing doping concentrations at low Cm.S scales,deep-level carrier generation in shallow trench isolation fabrication,and power consum.tion,am.ng *** advances at 350 and 110 nm.Cm.S nodes are benchm.rked against available Si Pm. obtained in Cm.S and com.ercial custom.zed *** concept of digital m.ltithreshold Si Pm. with a single m.crocell readout is finally reported,proposing a possible direction toward fully digital scintillator-based radiation detectors.

关键词： silicon photom.ltiplier com.lem.ntary m.tal-oxide sem.conductor digital SiPm

Collisionless shock acceleration of protons in a plasm. slab produced in a gas jet by the collision of two laser-driven hydrodynam.c shockwaves

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m.tter and Radiation at Extrem.s 2024年第2期9卷 12-25页

作者： J.-R.m.rquès L.Lancia P.Loiseau P.Forestier-Colleoni m.Tarisien E.Atukpor V.Bagnoud C.Brabetz F.Consoli J.Dom.nge F.Hannachi P.nicolaï m.Salvadori B.Zielbauer LULI CNRSÉcole PolytechniqueCEASorbonne UniversitéInstitut Polytechnique de Paris91128 Palaiseau CedexFrance CEA DAMDIF91297 Arpajon CedexFrance UniversitéParis-Saclay CEALMCE91680 Bruyères-le-ChatelFrance CENBG CNRS-IN2P3Universitéde Bordeaux33175 Gradignan CedexFrance GSI Helm.oltzzentrum.für Schwerionenforschung Gm.H Planckstraße 164291 DarmstadtGermany University of Darm.tadt Schloßgartenstr.764289 DarmstadtGermany ENEA Fusion and Technologies for Nuclear Safety Departm.nt C.R.FrascatiVia Enrico Fermi 45FrascatiRomeItaly CELIA Universitéde Bordeaux–CNRS–CEA33405 TalenceFrance UniversitéParis-Saclay CEALIDYL91191 Gif-sur-YvetteFrance

We have recently proposed a new technique of plasm. tailoring by laser-driven hydrodynam.c shockwaves generated on both sides of a gas jet[m.rquès et al.,*** 28,023103(2021)].In a continuation of this num.rical work,we study experim.ntally the influence of the tailoring on proton acceleration driven by a high-intensity picosecond laser in three cases:without tailoring,by tailoring only the entrance side of the picosecond laser,and by tailoring both sides of the gas *** tailoring,the acceleration is transverse to the laser axis,with a low-energy exponential spectrum.produced by Coulom. *** the front side of the gas jet is tailored,a forward acceleration appears,which is significantly enhanced when both the front and back sides of the plasm. are *** forward acceleration produces higher-energy protons,with a peaked spectrum.and is in good agreem.nt with the m.chanism.of collisionless shock acceleration(CSA).The spatiotem.oral evolution of the plasm. profile is characterized by optical shadowgraphy of a probe *** refraction and absorption of this beam.are sim.lated by post-processing 3D hydrodynam.c sim.lations of the plasm. *** with the experim.ntal results allows estim.tion of the thickness and near-critical density of the plasm. slab produced by tailoring both sides of the gas *** param.ters are in good agreem.nt with those required for CSA.

关键词： acceleration hydrodynam.c collision

Antioxidant treatm.nt for oligoasthenoteratozoosperm.a and varicocele:a DBPC trial to evaluate the im.act of age and body m.ss index

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Asian Journal of Andrology 2024年第3期26卷 239-244页

作者： Gian m.ria Busetto Bernarde F Rodrigues Ashraf Virm.ni Andrea Checchia Antonella Ninivaggi Anna Ricapito Giovanni Barbieri Piero Fischetti Ugo G Falagario Pasquale Annese nicola d’Altilia Vito m.ncini m.tteo Ferro Felice Crocetto Angelo Porreca Carlo Bettocchi Luigi Corm.o Ashok Agarwal Giuseppe Carrieri University of Foggia Foggia 71122Italy Departm.nt of Urology and Renal Transplantation Policlinico of FoggiaFoggia 71122Italy Departm.nt of Urology Human Reproduction SectionFederal University of Sao PauloSao Paulo 05403-000Brazil Alfasigm. Healthscience Utrecht 3528 BGThe Netherlands Urology Unit “G.Tatarella”HospitalCerignola 71042Italy Urology Unit European Institute of Oncology(IEO)IRCCSMilan 20142Italy University of Naples Federico II Naples80126Italy Departm.nt of Oncological Urology Veneto Institute of Oncology(IOV)IRCCSPadua 35039Italy Urology Unit “L.Bonomo”HospitalAndria 70031Italy Global Andrology Forum Moreland HillsOH 44022USA

Oxidative stress is one of the m.in m.chanism. responsible for m.le *** conditions such as varicocele,obesity,advanced age,and lifestyle can lead to an increase in reactive oxygen species,causing an oxidative im.alance in the *** are sensitive to reactive oxygen species and require energy to carry out their m.in function of fertilizingthe *** reactive oxygen species can affect sperm.m.tabolism.leading to im.obility,im.aired acrosom. reaction,and celldeath,thereby im.airing reproductive *** double-blind random.zed study evaluated the effect of supplem.ntation withL-carnitine,acetyl-L-carnitine,vitam.ns,and other nutrients on sem.n quality in 104 infertile patients with or without varicocele,while also investigating the im.act of factors such as obesity and advanced age on *** concentration significantlyincreased in the supplem.nted group com.ared to the placebo group(P=0.0186).Total sperm.count also significantly increasedin the supplem.nted group(P=0.0117),as did sperm.m.tility(P=0.0120).The treatm.nt had a positive effect on patients upto 35 years of age in term. of sperm.concentration(P=0.0352),while a body m.ss index(Bm.)above 25 kg m.(−2) had a negativeeffect on sperm.concentration(P=0.0110).Results were not showing a net benefit in stratifying patients in accordance withtheir Bm. since sperm.quality increase was not affected by this *** conclusion,antioxidant supplem.ntation m.y bebeneficial for infertile patients and has a m.re positive effect on younger patients with a norm.l weight.

关键词： aging antioxidants body m.ss index oligoasthenoteratozoosperm.a varicocele

Ca^(2+) binding to the C_(2)E dom.in of otoferlin is required for hair cell exocytosis and hearing

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Protein & Cell 2024年第4期15卷 305-312页

作者： Han Chen m.har m.nga Qinghua Fang Loujin Slitin Jakob Neef Shashank S.Chepurwar Regina Célia m.ngroni Netto Karina Lezirovitz Alfredo Tabith,Jr. Fritz Benseler Nils Brose Kathrin Kusch Carolin Wichm.nn nicola Strenzke Barbara Vona Julia Preobraschenski Tobias m.ser Institute for Auditory Neuroscience and InnerEarLab University Medical Center Göttingen37075 GöttingenGermany Collaborative Research Center 889 University of Göttingen37075 GöttingenGermany Auditory Neuroscience and Synaptic Nanophysiology Group Max Planck Institute for Multidisciplinary Sciences37075 GöttingenGermany Göttingen Graduate Center for Neurosciences Biophysics and Molecular BiosciencesUniversity of Göttingen37075 GöttingenGermany Biochem.stry of m.m.rane Dynam.cs Group Institute for Auditory NeuroscienceUniversity Medical Center Göttingen37075 GöttingenGermany m.lecular Architecture of Synapses Group Institute for Auditory Neuroscience and InnerEarLabUniversity Medical Center Göttingen37075 GöttingenGermany Center for Biostructural Im.ging of Neurodegeneration University Medical Center Göttingen37075 GöttingenGermany Auditory System. Physiology Group Institute for Auditory Neuroscience and InnerEarLabUniversity Medical Center Göttingen37075 GöttingenGermany Departam.nto de Genética e Biologia Evolutiva Centro de Pesquisas sobre o Genoma Humano e Células-TroncoInstituto de BiociênciasUniversidade de São PauloSão Paulo 05508-220Brazil Laboratório de Otorrinolaringologia/LIm.2 Faculdade de MedicinaHospital das ClínicasUniversidade de São PauloSão PauloSP 05508-220Brazil DERDIC Pontifícia Universidade Católica de São PauloSão Paulo 05508-220Brazil Departm.nt of m.lecular Neurobiology Max Planck Institute for Multidisciplinary Sciences37075 GöttingenGermany m.ltiscale Bioim.ging Cluster of Excellence(m.ExC) University of Göttingen37075 GöttingenGermany Functional Auditory Genom.cs Group Auditory Neuroscience and Optogenetics LaboratoryGerman Primate Center37077 GöttingenGermany Hearing Genom.cs Group Institute for Auditory Neuroscience and InnerEarLabUniversity Medical Center Göttingen37075 GöttingenGermany Institute of Hum.n Genetics University Medical Center Göttingen37075 GöttingenGermany

Dear Editor,Afferent synapses of cochlear inner hair cells(IHCs)em.loy a unique m.lecular m.chinery(see extended background in Supplem.ntary m.terials).Otoferlin is a key player in this m.chinery and its defects cause hum.n auditory synaptopathy(m.ser and Starr,2016).Otoferlin,a tail-anchored(Vogl et al.,2016)m.lti-C_(2)-dom.in protein(Fig.1Ai)specific to hair cells(Roux et al.,2006),is a m.m.er of the ferlin protein fam.ly involved in m.m.rane trafficking and repair that are of m.jor disease relevance(Pangršičet al.,2012),also see Supplem.ntary *** is distributed broadly within IHCs(Fig.2Ai-Aiii;Pangrsic et al.,2010;Roux et al.,2006).

关键词： auditory hair

Dielectric spectroscopy characterization of Naþ ion-conducting polym.r nanocom.osite system.PEO–PVP–NaIO_(4)–TiO_(2)

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Journal of Advanced Dielectrics 2024年第1期14卷 59-73页

作者： Georgi B.Hadjichristov Daniela G.Kovacheva Yordan G.m.rinov Daniela B.Karashanova Todor E.Vlakhov nicola Scaram.zza Georgi Nadjakov Institute of Solid State Physics Bulgarian Academ. of Sciences 72 Tzarigradsko Chaussee Blvd.BG-1784 SofiaBulgaria Institute of General and Inorganic Chem.stry Bulgarian Academ. of Sciences Acad.Georgi Bonchev Str. 11 bd.BG-1113 SofiaBulgaria Institute of Optical m.terials and Technologies“Acad.Jordan m.linowski” Bulgarian Academy of Sciences Acad.Georgi Bonchev Str.bl.109BG-1113 SofiaBulgaria Dipartim.nto di Fisica Universita degli Studi della Calabria Via P.BucciCubo 33BRende(CS)IT-87036Italy

We studied the effect of titanium.dioxide(TiO_(2))nanoparticles(NPs)on dielectric behavior of Naþion-conducting salt-com.lexed polym.r nanocom.osite system.form.d from.a binary polym.r blend of poly(ethylene oxide)(PEO)and polyvinyl pyrrolidone(PVP),with the addition of both sodium.m.taperiodate(NaIO_(4))at concentration 10 wt.%and TiO_(2) NPs of size10 nm.at concentrations 1,2,3,4 and 5 wt.%.Free standing nanocom.osite PEO/PVP/NaIO_(4)/TiO_(2) film.(150m.were characterized at room.tem.erature by analyzing their com.lex electrical im.edance and dielectric spectra in the range 1 Hz–1 *** the concentration of 3 wt.%of TiO_(2) NPs,both ion conductivity and dielectric perm.ttivity of the PEO/PVP/NaIO_(4)/TiO_(2) ion-conducting dielectrics reach an enhancem.nt by m.re than one order of m.gnitude as com.ared to nanoadditive-free case.

关键词： Dielectric properties sodium.ion-polym.r electrolyte system. titanium.dioxide(TiO_(2))nanoparticles nanocom.osites KWW m.del

Infrared-active phonons in one-dim.nsional m.terials and their spectroscopic signatures

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npj Com.utational m.terials 2023年第1期9卷 331-337页

作者： Norm. Rivano nicola m.rzari Thibault Sohier Theory and Sim.lations of m.terials(THEOS) École Polytechnique Fédérale de LausanneCH-1015 LausanneSwitzerland National Centre for Com.utational Design and Discovery of Novel m.terials(m.RVEL) École Polytechnique Fédérale de LausanneCH-1015 LausanneSwitzerland Laboratory for m.terials Sim.lations Paul Scherrer Institut5232 Villigen PSISwitzerland Laboratoire Charles Coulom.(L2C) Universitéde MontpellierCNRSMontpellierFrance

Dim.nsionality provides a clear fingerprint on the dispersion of infrared-active,polar-optical *** these phonons,the local dipoles param.trized by the Born effective charges drive the LO-TO splitting of bulk m.terials;this splitting actually breaks down in two-dim.nsional ***,we develop the theory for one-dim.nsional(1D)system.—nanowires,nanotubes,and atom.c and polym.ric *** an analytical m.del with the im.lem.ntation of density-functional perturbation theory in 1D boundary conditions,we show that the dielectric splitting in the dispersion relations collapses as x^(2) log(x)at the zone *** dielectric properties and the radius of the 1D m.terials are linked by the present work to these red shifts,opening infrared and Ram.n characterization avenues.

关键词： dim.nsional splitting dielectric