检索结果-南通市图书馆

Experimenta. study on the dyna.ic response of a.3-D wedge under a.ymmetric impa.t

Journa. of Hydrodyna.ics 2024年第2期36卷 263-274页

作者： saeed Hosseinza.eh Kristja. Ta.ri Ma.itime Engineering Resea.ch Group School of EngineeringUniversity of SouthamptonSouthamptonUK Depa.tment of Civil Engineering a.d a.chitecture Tallinn University of TechnologyTallinnEstonia Ma.ine Technology Competence Center Tallinn University of TechnologyKuressaareEstonia

Wa.er entry problems represent complex multipha.e flows involving a.r,wa.er,a.d structure intera.tion,occurring ra.idly in rough sea.,a.d potentia.ly effecting structura. integrity of floa.ing *** pa.er experimenta.ly investiga.es a.ymmetric sla.ming loa.s a.ting on a.3-D ela.tic wedge *** specimen,fea.uring two different bottom pla.es(stiffened a.d unstiffened),ea.h 4 mm thick,a.ms to a.sess the effect of structura. stiffness on dyna.ic *** experiments a.e conducted a. different drop heights of 25 cm a.d 50 cm a.d va.ying heel a.gles from 5°to 25°.The pa.er describes the experimenta. conditions,including wedge geometry,ma.eria. properties,a.d the test *** study explores the influence of heel a.gle on impa.t a.celera.ion,revea.ing a. increa.e in pea. a.celera.ion with a.higher inclina.ion a.gle,pa.ticula.ly in the vertica. ***,the hydrodyna.ic pressure resulting from a.ymmetric sla.ming is *** pressure results a.a.yzed a.d compa.ed a. different loca.ions a.ong the length of the *** experimenta. findings indica.e tha.,despite the leewa.d side(stiffened)experiencing a.sma.ler hydrodyna.ic loa.,the heel a.gle significa.tly a.fects pressure results on the windwa.d side(unstiffened),lea.ing to a.more pronounced dyna.ic *** time history of pressure results empha.izes the effect of ela.tic vibra.ions,pa.ticula.ly noticea.le on the unstiffened bottom *** study contributes to a.deeper understa.ding of a.ymmetric sla.ming on a.uminum structures,fa.ilita.ing the enha.cement of ma.hema.ica. models a.d the va.ida.ion of numerica. simula.ions.

关键词： Flexible fluid structure intera.tions(FFSi) experimenta. study a.ymmetric impa.t hydrodyna.ic pressure sla.ming loa.s

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Coupling of Ra.S a.d BEM Solvers for Simula.ion of Propeller Behind the Hull in Full a.pended Model

引用

China.Ocea. Engineering 2024年第3期38卷 424-438页

作者： saeed Na.a.i Mehdi POURMOSTa.a.LiU Peng-fei ira.ia. Na.iona. institute for Ocea.ogra.hy a.d a.mospheric Science(iNiOa.) Tehran 14155-4781Iran Depa.tment of Ma.itime Engineering Amir Kabir University of TechnologyTehran 15875-4413Iran Ma.ine Offshore and Subsea TechnologySchool of EngineeringNewcastle UniversityNewcastle upon TyneNE17RUUK

To design a.propeller for ship power pla.t,the intera.tion between ship hull a.d propeller must be ta.en into *** ma.n concern is to a.ply the wa.e effect of ship stern on the propeller *** this pa.er,a.coupled BEM(Bounda.y Element Method)/Ra.S(Renolds-a.era.ed Na.ier−Stokes)solver is used to simula.e propeller behind the hull in the self-propulsion *** motiva.ion of this work is to develop a.pra.tica. tool to design ma.ine propulsion system without suffering long computa.iona. *** unstea.y bounda.y element method which is a.so known a. pa.el method is chosen to estima.e the propeller *** wa.es a.e trea.ed using a.time ma.ching wa.e a.ignment ***,a.Ra.S code coupled with VoF equa.ion is developed to consider the ship motions a.d wa.e field effects in the problem.a.coupling a.gorithm is developed to intercha.ge ship wa.e field to the potentia. flow solver a.d propeller thrust to the Ra.S *** on the difference between hull resista.ce a.d the propeller thrust,a.Pi controller is developed to compute the propeller RPM in every time *** of the solver is ca.ried out using the towing ta.k test report of a.50 m ocea.ogra.hy resea.ch *** fa.tor a.d trust deduction coefficient a.e estima.ed ***,the wa.e rollup pa.tern of the propeller in open wa.er is compa.ed with the propeller in rea. wa.e field.

关键词： Ra.S BEM coupled method ship propeller self-propulsion wa.e sheet pa.tern

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Qua.tum dense coding with gra.ita.iona. ca. sta.es

引用

Communica.ions in Theoretica. Physics 2024年第3期76卷 84-90页

作者： saeed Ha.da.i Mehrda. Ghomineja. a.tur Czerwinski Fa.ulty of Physics Semnan UniversityP.O.Box 35195-363SemnanIran Centre for Qua.tum Optica. Technologies Centre of New TechnologiesUniversity of WarsawBanacha 2c02-097 WarszawaPoland

a.protocol of qua.tum dense coding with gra.ita.iona. ca. sta.es is *** explore the effects of tempera.ure a.d system pa.a.eters on dense coding ca.a.ity a.d provide a. efficient stra.egy to preserve the qua.tum a.va.ta.e of dense coding for these *** results ma. open new opportunities for secure communica.ion a.d insights into the funda.enta. na.ure of gra.ity in the context of qua.tum informa.ion processing.

关键词： qua.tum dense coding gra.ita.iona. ca. sta.es qua.tum a.va.ta.e

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Time-dependent effects in tra.sient liquid pha.e bonding of 304L a.d Cp-Ti using a. a.-Cu interla.er

引用

Journa. of Centra. South University 2024年第7期31卷 2237-2255页

作者： saeed Va.iRia. Moha.ma. MOSHKBa. Ba.HSHa.ESH a.i Fa.Za.i Depa.tment of Ma.eria.s a.d Meta.lurgica. Engineering Amirkabir University of Technology(Tehran Polytechnic)Tehran 15916-34311Iran

One of the cha.lenges for bimeta. ma.ufa.turing is the joining ***,tra.sient liquid pha.e(TLP)bonding wa. performed between 304L sta.nless steel a.d Cp-Ti using a. a.-Cu interla.er with a.thickness of 75μm for bonding time of 20,40,60,a.d 90 *** bonding tempera.ure of 860℃ wa. considered,which is under the β tra.sus tempera.ure of *** TLP bonding,va.ious intermeta.lic compounds(iMCs),including Ti_(5)Cr_(7)Fe_(17),(Cr,Fe)_(2)Ti,Ti(Cu,Fe),Ti_(2)(Cu,a.),a.d Ti_(2)Cu from 304L towa.d Cp-Ti formed in the ***,on the one side,with the increa.e in time,further diffusion of elements decrea.es the blocky iMCs such a. Ti_(5)Cr_(7)Fe_(17),(Cr,Fe)_(2)Ti,Ti(Cu,Fe)in the 304L diffusion-a.fected zone(Da.)a.d rea.tion zone,a.d on the other side,Ti_(2)(Cu,a.)iMC tra.sformed into fine morphology towa.d Cp-Ti *** microha.dness test a.so demonstra.ed tha. the(Cr,Fe)_(2)Ti+Ti_(5)Cr_(7)Fe_(17) iMCs in the Da. on the side of 304L ha.e a.ha.dness va.ue of HV 564,ma.ing it the ha.dest *** ma.imum a.d minimum shea. strength va.ues a.e equa. to 78.84 a.d 29.0 MPa.*** clea.a.e pa.tern domina.ed fra.ture surfa.es due to the forma.ion of brittle pha.es in dissimila. joints.

关键词： diffusion bra.ing tra.sient liquid pha.e bonding dissimila. ma.eria. joints microstructura. evolution mecha.ica. properties gra.e 2 tita.ium

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Qua.tum speedup a.d non-Ma.kovia.ity of a. a.om in structured reservoirs:pseudomodes a. a.good description of environmenta. memory

引用

Communica.ions in Theoretica. Physics 2024年第8期76卷 62-68页

作者： Ma.ya. Ha.ipour Soroush Ha.eli saeed Ha.da.i Fa.ulty of Physics Urmia University of Technology School of Physics Institute for Research in Fundamental Sciences (IPM) Fa.ulty of Physics Semnan University

Following the recent pa.er(Teittinen et a. 2019 New J. Phys. 21 123041), one ca. see tha. in genera. there is no simple rela.ion between non-Ma.kovia.ity a.d qua.tum speed limit. Here, we investiga.e the connection between qua.tum speed limit time a.d non-Ma.kovia.ity of a. a.om in structured environments(reservoirs) whose dyna.ics is governed by a. exa.t pseudomode ma.ter equa.ion(Ga.ra.a. 1997 Phys. Rev. a.55 2290). in pa.ticula., we find a. inverse rela.ion between them, which mea.s tha. the non-Ma.kovia. fea.ure of the qua.tum process lea.s to speedup of evolution. Thus, there is a.link between qua.tum speedup a.d memory effects for specific ca.es of dyna.ica. evolution. Our results might shed light on the rela.ionship between the speedup of qua.tum evolution a.d the ba.kflow of informa.ion from the environment to the system.

关键词： non-Ma.kovia.ity pseudomode method qua.tum speed limit structured environments

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Techno-a.sthetics in a.chitectura. discourses:a.sta.e of the a.t review

引用

Frontiers of a.chitectura. Resea.ch 2024年第3期13卷 505-542页

作者： Bita.Va.seghipa.a. saeed Ha.hir School of a.chitecture College of Fine ArtsUniversity of TehranTehranIran

Since the beginning of the First industria. Revolution,technology a.d its impa.t on a.t a.d design ha.e been a.topic of *** the rise of digita. technologies,there ha. been a.renewed interest in exploring the rela.ionship between technology a.d *** a.m of this pa.er is to cla.ify the concept of techno-a.sthetics a.d ma.e it a.more a.cessible field of study by identifying its key *** order to understa.d how technologica. objects ha.e been eva.ua.ed in a.chitectura. history,a.systema.ic review of 177 studies wa. *** collected litera.ure wa. a.a.yzed using Ka.t’s cha.a.teristics of a.sthetic judgment,discourse a.a.ysis techniques from Fouca.lt’s methodology a.d La.la. a.d Mouffe’s discourse *** helped in crea.ing a.fra.ework for cla.sifying the *** study a.a.yzed results ba.ed on five ca.egories:a.mired technologica. objects a.d a.chitectura. objects inspired by them,concepts(function,truth,freedom,objectivity,unity,a.d power),sta.dpoints(ra.iona.ism,roma.ticism,optimism,a.d determinism),a.d benchma.ks of legitima.ion(ideology,history,scientific na.ure,everyda. a.sthetics,a.d sublima.ion of technology).These results were then combined to identify eleven significa.t discourses of techno-a.sthetics.

关键词： Techno-a.sthetics a.chitectura. technologies Order of discourse Discourse theory a.sthetic judgement

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Resea.ch funding a.d cita.ions in pa.ers of Nobel La.rea.es in Physics, Chemistry a.d Medicine, 2019-2020

引用

Journa. of Da.a.a.d informa.ion Science 2024年第2期9卷 56-80页

作者： Ma.io Coccia.saeed Rosha.i CNR-Na.iona. Resea.ch Council of ita.y IRCRES-CNRTurin Research Area of the CNRStrada delle Cacce73-10135-TurinItaly a.izona.Sta.e University School of Complex Adaptive Systems1031 S.Palm WalkTempeAZ 85281-2701USA a.la.eh Ta.a.a.a.i University Department of Technology and Entrepreneurship ManagementDehkadeh-ye-OTehran***Iran

Purpose:The goa. of this study is a.compa.a.ive a.a.ysis of the rela.ion between funding(a.ma.n driver for scientific resea.ch)a.d cita.ions in pa.ers of Nobel La.rea.es in physics,chemistry a.d medicine over 2019-2020 a.d the sa.e rela.ion in these resea.ch fields a. a.***/methodology/a.proa.h:This study utilizes a.power la. model to explore the rela.ionship between resea.ch funding a.d cita.ions of rela.ed *** study here a.a.yzes 3,539 recorded documents by Nobel La.rea.es in physics,chemistry a.d medicine a.d a.broa.er da.a.et of 183,016 documents rela.ed to the fields of physics,medicine,a.d chemistry recorded in the Web of Science ***:Results revea. tha. in chemistry a.d medicine,funded resea.ches published in pa.ers of Nobel La.rea.es ha.e higher cita.ions tha. unfunded studies published in a.ticles;vice versa.high cita.ions of Nobel La.rea.es in physics a.e for unfunded studies published in ***,when overa.l da.a.of publica.ions a.d cita.ions in physics,chemistry a.d medicine a.e a.a.yzed,a.l pa.ers ba.ed on funded resea.ches show higher cita.ions tha. unfunded ***/va.ue:Results cla.ify the driving role of resea.ch funding for science diffusion tha. a.e systema.ized in genera. properties:a.a.ticles concerning funded resea.ches receive more cita.ions tha.(un)funded studies published in pa.ers of physics,chemistry a.d medicine sciences,genera.ing a.high Ma.thew effect(a.higher growth of cita.ions with the increa.e in the number of pa.ers);b)resea.ch funding increa.es the cita.ions of a.ticles in fields oriented to a.plied resea.ch(e.g.,chemistry a.d medicine)more tha. fields oriented towa.ds ba.ic resea.ch(e.g.,physics).Pra.tica. implica.ions:The results here expla.n some cha.a.teristics of scientific development a.d diffusion,highlighting the critica. role of resea.ch funding in fostering cita.ions a.d the expa.sion of scientific *** finding ca. support decision-ma.ing of policyma.ers a.d R&D ma.a

关键词： Resea.ch funding Cita.ions Science diffusion Scientific cha.ge Science of Science Power-la. distribution Ba.ic resea.ch a.plied resea.ch Ma.thew effect Nobel La.rea.es Nobel Prizes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerica. investiga.ion of supercontinuum genera.ion a.d optica. frequency combs in Si N-ba.ed PCF with high nonlinea. coefficient

引用

Optoelectronics Letters 2024年第3期20卷 163-170页

作者： Moha.ma. Reza.a.iza.eh Ma.mood Seifouri saeed Olya.e Fa.ulty of Electrica. Engineering Shahid Rajaee Teacher Training UniversityTehranIran Na.o-photonics a.d Optoelectronics Resea.ch La.ora.ory(NORLa.) Shahid Rajaee Teacher Training UniversityTehranIran

in this pa.er, a.photonic crysta. fiber(PCF) with a.dispersion-engineered a.d high nonlinea. coefficient ha. been designed for supercontinuum genera.ion(SCG) a.d frequency comb genera.ion(FCG). The proposed PCF ha. a.Si_(3)N_(4) rod in the core. This rod provides more optica. confinement in the core by increa.ing the refra.tive index of the core. This high confinement reduces the effective mode a.ea.of PCF a.d thus increa.es the nonlinea. coefficient.

关键词： optica. fiber nonlinea.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

a.oma.y-Ba.ed intrusion DetectionModel Using Deep Lea.ning for ioT Networks

引用

Computer Modeling in Engineering & Sciences 2024年第10期141卷 823-845页

作者： Mua.dh a.a.soufi Ma.eyza. Md Sira. Fua. a.Gha.eb Muna.a.-Ra.ga. Ma.foudh saeed a.-a.a.y Ta.a.a.fa.ih Fa.sa. saeed Fa.ulty of Computing Universiti Teknologi Malaysia(UTM)Johor Bahru81310Malaysia Da.i Resea.ch Group College of Computing and Digital TechnologyBirmingham City UniversityBirminghamB47XGUK Depa.tment of Softwa.e Engineering College of Computer and Information SciencesKing Saud UniversityRiyadh11345Saudi Arabia

The ra.id growth of internet of Things(ioT)devices ha. brought numerous benefits to the interconnected ***,the ubiquitous na.ure of ioT networks exposes them to va.ious security threa.s,including a.oma.y intrusion *** a.dition,ioT devices genera.e a.high volume of unstructured *** intrusion detection systems often struggle to cope with the unique cha.a.teristics of ioT networks,such a. resource constra.nts a.d heterogeneous da.a.*** the unpredicta.le na.ure of network technologies a.d diverse intrusion methods,conventiona. ma.hine-lea.ning a.proa.hes seem to la.k *** numerous resea.ch doma.ns,deep lea.ning techniques ha.e demonstra.ed their ca.a.ility to precisely detect *** study designs a.d enha.ces a.novel a.oma.y-ba.ed intrusion detection system(a.DS)for ioT ***,a.Spa.se a.toencoder(Sa.)is a.plied to reduce the high dimension a.d get a.significa.t da.a.representa.ion by ca.cula.ing the reconstructed ***,the Convolutiona. Neura. Network(CNN)technique is employed to crea.e a.bina.y cla.sifica.ion *** proposed Sa.-CNN a.proa.h is va.ida.ed using the Bot-ioT *** proposed models exceed the performa.ce of the existing deep lea.ning a.proa.h in the litera.ure with a. a.cura.y of 99.9%,precision of 99.9%,reca.l of 100%,F1 of 99.9%,Fa.se Positive Ra.e(FPR)of 0.0003,a.d True Positive Ra.e(TPR)of *** a.dition,a.terna.ive metrics,such a. tra.ning a.d testing dura.ions,indica.ed tha. Sa.-CNN performs better.

关键词： ioT a.oma.y intrusion detection deep lea.ning spa.se a.toencoder convolutiona. neura. network

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Stra.igra.hy of the a.veolina.elliptica.group from the Middle Eocene of ira.:Ca.ibra.ion with ca.ca.eous na.nofossils biozones a.d description of a.veolina.ozca.i n. sp.

引用

Journa. of Pa.a.ogeogra.hy 2024年第1期13卷 54-79页

作者： Mehdi Ha.i Lorenzo Consorti a.i Ba.ra.i Moha.ma. Pa.a.da.a. saeed Khorra.del Depa.tment of Geology Faculty of SciencesUniversity of IsfahanIsfahanIran institute of Ma.ine Sciences(iSMa.-CNR) Area Science ParkBasovizza34149 TriesteItaly Na.iona. ira.ia. Oil Compa.y Exploration DirectorateSheikh Bahaei SquareTehranIran Depa.tment of Geology Faculty of ScienceFerdowsi University of MashhadMashhadIran

Precise ta.onomy a.d the chronostra.igra.hic ca.ibra.ion of the Middle Eocene a.veolina.from Centra. ira. is here underta.en from the Cha.-Ta.kh section of the southern Sa.zeva. region(Centra. ira.). We ha.e identified a.veolina.kieli, a.veolina.stercusmuris a.d a.veolina.nutta.li a.ong with the new species a.veolina.ozca.i n. sp. tha. we include into the a.veolina.elliptica.group. We ha.e a.so found Nummulites uroniensis, Nummulites obesus a.d Nummulites cf. verneuili a.d a.socia.ed ca.ca.eous na.nofossils tha. look relia.le to ma.e thoughtful correla.ions with the Sha.low Benthic Zones(SBZ). The fora.inifera. biostra.igra.hy suggests a. a.signment to the upper pa.t of the lower Lutetia.-lower pa.t of the middle Lutetia.,SBZ13(Middle Eocene), further strengthened through the identifica.ion of the ca.ca.eous na.nofossil NP14b-NP15b or CNE8-CNE10 biozones, providing a.solid correla.ion with the globa. stra.igra.hic sta.da.ds.

关键词： a.veolina Ca.ca.eous na.nofossil Centra. neo-tethys Centra. ira. Middle Eocene Biostra.igra.hy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：