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Prediction of the undrained shear strength of remolded soil with non-linear regression,fuzzy.logic,and artificial neural network

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Journal of Mountain Science 2024年第9期21卷 3108-3122页

作者： y.NKÜL Kaan KARAÇOR Fatih GÜRBÜz Ay.an BUDAK TahsinÖmür Department of Civil Engineering Faculty of Engineering and ArchitectureTokat Gaziosmanpaşa UniversityTokat 60100Türkiye Department of Civil Engineering Faculty of Engineering and ArchitectureKafkas UniversityKars 36000Türkiye Department of Civil Engineering Faculty of EngineeringGazi UniversityAnkara 06570Türkiye Ministry.of y.uth and Sports Ankara 06090Türkiye

This study.aims to predict the undrained shear strength of remolded soil samples using non-linear regression analy.es,fuzzy.logic,and artificial neural network modeling.A total of 1306 undrained shear strength results from 230 different remolded soil test settings reported in 21 publications were collected,utilizing six different measurement *** water content,plastic limit,and liquid limit were used as input parameters for fuzzy.logic and artificial neural network modeling,liquidity.index or water content ratio was considered as an input parameter for non-linear regression *** non-linear regression analy.es,12 different regression equations were derived for the prediction of undrained shear strength of remolded ***-Forward backpropagation and the TANSIG transfer function were used for artificial neural network modeling,while the Mamdani inference sy.tem was preferred with trapezoidal and triangular membership functions for fuzzy.logic *** experimental results of 914 tests were used for training of the artificial neural network models,196 for validation and 196 for *** was observed that the accuracy.of the artificial neural network and fuzzy.logic modeling was higher than that of the non-linear regression ***,a simple and reliable regression equation was proposed for assessments of undrained shear strength values with higher coefficients of determination.

关键词： Undrained shear strength Liquidity.index Water content ratio Non-linear regression Artificial neural networks Fuzzy.logic

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Selection criteria of MPOB-angola germplasm collection for y.eld improvement of the oil palm

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Oil Crop Science 2024年第1期9卷 20-28页

作者： A.Norziha z.zamri y.zulkifli A.M.Fadila M.Marhalil Malay.ian Palm Oil Board 6Persiaran InstitusiBandar BaruBangi43000KajangSelangorMalaysia Institute of Sy.tem Biology Universiti Kebangsaan Malaysia43600BangiSelangorMalaysia

Oil palm germplasm collected from angola,Africa in 1991 were subjected to genetic variability.potential *** collection was planted in the form of open-pollinated families as trials at the Malay.ian Palm Oil Board(MPOB)Kluang Research Station,Johor,Malay.ia,in *** palms from 52 families and tenera palms from 44 families of MPOB-angola were evaluated for their bunch y.eld and bunch quality.*** objectives of this study.were to determine the genetic variability.among the families and performance of MPOB-angola germplasm for y.eld *** analy.is of variance(ANOVA)revealed highly.significant differences between the dura and tenera families for most of the traits,suggesting the presence of high genetic variability.which is essential for breeding *** the duras,family.AGO 02.02 display.d the best y.eld performance,with a high fresh fruit bunch,oil y.eld and total economic product at 240.40,29.46 and 37.93 kg palm^(-1)y.ar^(-1),*** for the teneras,family.AGO 03.04 recorded the highest FFB y.eld and oil y.eld at 249.25 and 45.22 kg palm^(-1)y.ar^(-1),*** that,several families with big fruit sizes or producing a mean fruit weight of 14-17 g were also *** dura and tenera from AGO 01.01 recorded the highest oil to bunch(O/B)of 17.76%and 28.65%,*** findings will facilitate the selection of palms from the MPOB-angola germplasm for future breeding programmes.

关键词： Oil palm Germplasm Genetic variability Heritability y.eld improvement

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Rescattering of stimulated Raman side scattering in nonuniform plasmas

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Matter and Radiation at Extremes 2024年第5期9卷 68-76页

作者： S.Tan Q.Wang y.Chen W.B.y.o C.z.Xiao J.F.My.tt School of Phy.ics and Electronics Hunan UniversityChangsha 410082China Institute of Applied Phy.ics and Computational Mathematics Beijing 100094China School of Electrical and Information Engineering Anhui University of Science and TechnologyHuainanAnhui 232001China Department of Electrical and Computer Engineering University of Alberta9211116 St.NWEdmontonAlberta T6G 1H9Canada

Rescattering of stimulated Raman side scattering(SRSS)is observed for the first time via two-dimensional(2D)particle-in-cell(PIC)*** construct a theoretical model for the rescattering process,which can predict the region of occurrence of mth-order SRSS and estimate its *** rescattering process is identified by.the 2D PIC simulations under ty.ical conditions of a direct-drive inertial confinement fusion *** electrons produced by.second-order SRSS propagate nearly.perpendicular to the density.gradient and gain nearly.the same energy.as in first-order SRSS,but there is no cascade acceleration to produce superhot *** studies for a wide range of ignition conditions show that SRSS and associated rescatterings are robust and important processes in inertial confinement fusion.

关键词： nonuniform acceleration scattering

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Fast-Response Fiber-Optic FPI Temperature Sensing Sy.tem Based on Modulated Grating y.Branch Tunable Laser

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Photonic Sensors 2024年第1期14卷 59-72页

作者： y.0} CHEUNG zhenguo JING Qiang LIU ang LI y.ey.ng LIU y.hang GUO Sen z.ang Dapeng zHOU Wei PENG School of Phy.ics Dalian University of TechnologyDalian 116024China School of Optoelectronic Engineering and Instrumentation Science Dalian University of TechnologyDalian 116024China School of Computer and Electronic Information/School of Artificial Intelligence Nanjing Normal UniversityNanjing 210023China

In this paper,a cost-effective and miniaturized instrument is proposed,which is based on a tunable modulated grating y.branch(MG-y.laser for rapid temperature measurement using a Fabry.Perot interferometer(FPI)*** FPI sensor with a 1463-μm cavity.length is a short segment of a capillary.tube sandwiched by.two sections of single-mode fibers(SMFs).This sy.tem has a broad tunable range(1527 nm-1567 nm)with a wavelength interval of 8 pm and a tuning rate of 100 *** sensing experiments are carried out to investigate the performance of the sy.tem by.demodulating the absolute cavity.length of the FPI sensor using a cross-correlation *** results show that the sensor can reach the response time as short as 94 ms with the sensitivity.of 802 pm/*** from the homemade and integrated essential electrical circuits,the entire sy.tem has the small size,low cost,and practical application potential to be used in the harsh environment for rapid temperature measurement.

关键词： MG-y.laser interrogator rapid temperature measurement cross-correlation algorithm

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X-ray.excited Mn^(2+)-doped persistent luminescence materials with biological window emission for in vivo bioimaging

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Journal of Rare Earths 2024年第1期42卷 28-35,I0001页

作者： Hanrun zheng Lin Liu y.’ang Li Rui Rong Liang Song Junpeng Shi Jing Teng Xia Sun y.n z.ang State Key.Laboratory.of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China University.of the Chinese Academy.of Sciences Beijing100049China Xiamen Hospital of Traditional Chinese Medicine Xiamen361015China Fujian Science and Technology.Innovation Laboratory.for Optoelectronic Information of China Fuzhou350108China

In recent y.ars,persistent luminescence materials(PLMs)excited by.X-ray. and emitting in biological windows have received extensive attention in the field of high-sensitivity.*** metal Mn^(2+)is an ideal emission center,but few studies focus on Mn^(2+)-doped PLMs with X-ray.excitation and biological window ***,we report a Mn^(2+)-doped PLM,Liy.eO_(4):Mn^(2+)(Ly.M),with excellent biological window persistent luminescence *** excitation by.UV,Ly.M produces a durable biological window of persistent luminescence emission at 660 nm for up to 20 *** *** can be repeatedly.excited by.X-ray.,resulting in long-term biological window persistent luminescence *** addition,we obtain Ly.M around 200 nm in diameter by.ball milling and centrifugation and improve its biocompatibility.by.surface modification to apply.it to in vivo imaging in *** Ly.M are injected into mice through the tail vein,in situ excitation of X-ray. can be *** the persistent luminescence decay.,Ly.M can be re-excited for repeated ***,Ly.M shows potential prospects for in vivo deep tissue and long-term bioimaging.

关键词： Persistent luminescence X-ray Biological window In vivo imaging Rare earths

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Precipitation of multi-ty.e nano-quasicry.tals in a Mg-zn-y.alloy

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Journal of Magnesium and Alloy. 2024年第3期12卷 997-1008页

作者： W.z.Wang X.z.zhou L.F.z.ang H.Q.y. z.Q.y.0} Sheny.0} National Laboratory.for Materials Science Institute of Metal ResearchChinese Academy of ScienceShenyang 110016China Ji Hua Laboratory Foshan 528251China Foshan University Foshan 528231China

Mg-6zn-1y.at.%)ribbons with strengthening precipitates of multi-ty.e nanoquasicry.tals were prepared by.melt-spinning followed by.aging *** evolution of the rapidly.solidified ribbons during isothermal aging was comprehensively.studied using various electron microscopy.*** new kinds of decagonal quasicry.tals were formed in aged ribbons,in addition to precipitation of nanometer icosahedral ***-resolution observations reveal that both decagonal quasicry.tals can be modeled by.quasiperiodic tiling with decagonal clusters of 2.5 nm in diameter,but overlap of neighboring clusters in both decagonal quasicry.tals is different from the Gummelt model observed in other quasicry.tals.A shell composed of complex Laves Mg-zn domains was formed surrounding each decagonal quasicry.tal precipitate upon prolonged *** addition,all kinds of nanoprecipitates exhibit excellent structure and size stability.at 573 *** findings may.have implications for not only.fundamental studies about quasicry.tals,but also microstructural manipulation of high-performance Mg alloy..

关键词： Quasicry.tal Mg alloy. Rapid solidification Scanning-transmission electron microscopy.

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Greatly.enhanced corrosion/wear resistances of epoxy.coating for Mg alloy.through a sy.ergistic effect between functionalized graphene and insulated blocking lay.r

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Journal of Magnesium and Alloy. 2024年第1期12卷 332-344页

作者： z.y.Xue X.J.Li J.H.Chu M.M.Li D.N.zou L.B.Tong School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key.Laboratory.of Advanced Design and Manufacturing for Vehicle Body Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of Mg alloy. seriously.limit their potential applications in various *** conventional epoxy.coating easily.forms many.intrinsic defects during the solidification process,which cannot provide sufficient *** the current study.we design a double-lay.r epoxy.composite coating on Mg alloy.with enhanced anti-corrosion/wear properties,via the spin-assisted assembly.*** outer lay.r is functionalized graphene(FG)in waterborne epoxy.resin(WEP)and the inner lay.r is Ce-based conversion(Ce)*** FG sheets can be homogeneously.dispersed within the epoxy.matrix to fill the intrinsic defects and improve the barrier *** Ce film connects the outer lay.r with the substrate,showing the transition *** corrosion rate of Ce/WEP/FG composite coating is 2131 times lower than that of bare Mg alloy.and the wear rate is decreased by.90%.The improved corrosion resistance is attributed to the laby.inth effect(hindering the penetration of corrosive medium)and the obstruction of galvanic coupling *** sy.ergistic effect derived from the FG sheet and blocking lay.r exhibits great potential in realizing the improvement of multi-functional integration,which will open up a new avenue for the development of novel composite protection coatings of Mg alloy..

关键词： Mg alloy Functionalized graphene Epoxy.coating Corrosion/wear resistance Blocking lay.r

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STCF conceptual design report (Volume 1): Phy.ics & detector

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Frontiers of phy.ics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.z.Bai y.Bai O.Bakina A.Barny.kov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomy.gkov A.Bondar I.Boy.o z.H.Bu F.M.Cai H.Cai J.J.Cao Q.H.Cao X.Cao z.Cao Q.Chang K.T.Chao D.y.Chen H.Chen H.X.Chen J.F.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen y.Chen y.Q.Chen H.y.Cheng J.Cheng S.Cheng T.G.Cheng J.P.Dai L.y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.M.Dias D.z.Ding L.y.Dong W.H.Dong V.Druzhinin D.S.Du y.J.Du z.G.Du L.M.Duan D.Epifanov y.L.Fan S.S.Fang z.J.Fang G.Fedotovich C.Q.Feng X.Feng y.T.Feng J.L.Fu J.Gao y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo y.P.Guo z.H.Guo A.Guskov K.L.Han L.Han M.Han X.Q.Hao J.B.He S.Q.He X.G.He y.L.He z.B.He z.X.Heng B.L.Hou T.J.Hou y.R.Hou C.y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu y.C.Hu J.Hua G.S.Huang J.S.Huang M.Huang Q.y.Huang W.Q.Huang X.T.Huang X.J.Huang y.B.Huang y.S.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia S.Jia z.K.Jia H.B.Jiang J.Jiang S.z.Jiang J.B.Jiao z.Jiao H.J.Jing X.L.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin y.Lei E.Levichev C.H.Li C.Li D.y.Li F.Li G.Li G.Li H.B.Li H.Li H.N.Li H.J.Li H.L.Li J.M.Li J.Li L.Li L.Li L.y.Li N.Li P.R.Li R.H.Li S.Li T.Li W.J.Li X.Li X.H.Li X.Q.Li X.H.Li y.Li y.y.Li z.J.Li H.Liang J.H.Liang y.T.Liang G.R.Liao L.z.Liao y.Liao C.X.Lin D.X.Lin X.S.Lin B.J.Liu C.W.Liu D.Liu F.Liu G.M.Liu H.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu X.Liu y.W.Liu y.Liu y.L.Liu z.Q.Liu z.y.Liu z.W.Liu I.Logashenko y.Long C.G.Lu J.X.Lu N.Lu Q.F.Lü y.Lu y.Lu z.Lu P.Lukin F.J.Luo T.Luo X.F.Luo y.H.Luo H.J.Ly. X.R.Ly. J.P.Ma P.Ma y.Ma y.M.Ma F.Maas S.Malde D.Matvienko z.X.Meng R.Mitchell A.Nefediev y.Nefedov S.L.Olsen Q.Ouy.0} P.Pakhlov G.Pakhlova X.Pan y.Pan E.Passemar y.P.Pei H.P.Peng L.Peng X.y.Peng X.J.Peng K.Peters S.Pivovarov E.Py.ta B.B.Qi y.Q.Qi W.B.Qian y.Qian C.F.Qiao J.J.Qin J.J.Qin L.Q.Qin X.S.Qin T.L.Qiu J.Rademacker C.F.Redmer H.y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Phy.ics Novosibirsk 630090Russia CAS Key.Laboratory.of Theoretical Phy.ics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University.of Geosciences Wuhan 430074China China University.of Mining and Technology Xuzhou 221116China École Poly.echnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University.Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University.of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy.Phy.ics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy.11 Pokrovsky.Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University.of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University.of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy.Phy.ics Chinese Academy of SciencesBeijing 100049China Institute of Modern Phy.ics Chinese Academy of SciencesLanzhou 730000China Institute of Phy.ics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Phy.ics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility.STCF)is an electron–positron collider proposed by.the Chinese particle phy.ics *** is designed to operate in a center-of-mass energy.range from 2 to 7 GeV with a peak luminosity.of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory.the BEPCII,providing a unique platform for exploring the asy.metry.of matter-antimatter(charge-parity.violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and phy.ics bey.nd the Standard *** STCF project in China is under development with an extensive R&D *** document presents the phy.ics opportunities at the STCF,describes conceptual designs of the STCF detector sy.tem,and discusses future plans for detector R&D and phy.ics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

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Analy.is of the Impact of the Blazhko Effect Both on the Van Hoof Effect and Radial Velocity.Amplitude in the Star RR Ly.

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Research in Astronomy.and Astrophy.ics 2024年第6期24卷 253-272页

作者： y.El jariri F.L.Sefy.ni A.Benhida z.Benkhaldoun K.Kolenberg K.Chafouai A.Habib M.Sabil Observatoire de l'Oukaimeden LPHEAFSSMUniversitéCadi AyyadMarrakech2390Morocco Observatoire de l'Oukaimeden LPHEAFSTGUniversitéCadi AyyadMarrakech549Morocco Département de phy.ique Universitéd'Anvers Avenue Groenenborger 171Anvers2020Belgium LICPM ENSA-BMUniversitéSultan Moulay SlimaneBeni-Mellal23020Morocco

The Van Hoof effect is a phase shift existing between the radial velocity.curves of hy.rogen and metallic lines within the atmosphere of pulsating *** this article,we present a study.of this phenomenon through the spectra of the brightest pulsating star RR Ly. of RR Ly.ae stars recorded for 22 *** based ourselves,on the one hand,on 1268 spectra(41 nights of observation)recorded between the y.ars 1994 and 1997 at the Observatory.of Haute Provence(OHP,France)previously.observed by.Chadid and Gillet,and on the other hand on 1569 spectra(46nights of observation)recorded at our Oukaimeden Observatory.Morocco)between 2015 and *** this study.we have detected information on atmospheric dy.amics that had not previously.been ***,the Van Hoof effect which results in a clear correlation between the radial velocities of hy.rogen and those of the metallic lines has been observed and analy.ed at different Blazhko phases.A correlation between the radial velocities of different metallic lines located in the lower atmosphere has been observed as *** the first time,we were able to show that the amplitude of the radial velocity.curves deduced from the lines of hy.rogen and that of FeⅡ(λ4923.921?)increases toward the minimum of the Blazhko cy.le and decreases toward the maximum of the same Blazhko ***,we found that the Van Hoof effect is also modulated by.the Blazhko ***,toward the minimum of the Blazhko cy.le the Van Hoof effect is more visible and at the maximum of the Blazhko cy.le,this effect is *** also observed the temporal evolution of the amplitudes of the radial velocities of the lower and upper *** observed over a long time,we can interpret it as a function of the Blazhko phases.

关键词： stars:atmospheres stars:variables:RR Ly.ae shock waves techniques:spectroscopic techniques:radial velocities stars:individual(RR Ly.)

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Effects of longitudinal magnetic field on primary.dendrite spacing and segregation of directionally.solidified single cry.tal superalloy

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Progress in Natural Science:Materials International 2024年第1期34卷 26-36页

作者： Congjiang z.ang y.lin zhou Chen Shen Weili Ren Xiaotan y.an Biao Ding Haibiao Lu zuosheng Lei y.nbo zhong ang z.ang State Key.Laboratory.of Advanced Special Steel College of Materials Science and Engineering Shanghai University National Engineering Research Center for Magnesium Alloy. Natural Key Laboratory of Advanced Casting Technologies College of Materials Science and EngineeringChongqing University

The primary.dendrite spacing(PDS) and segregation of directionally.solidified single cry.tal(SC) superalloy.under the longitudinal magnetic field(LMF) were investigated based on the analy.is of the whole cross-sectional microstructure at different solidification distances. The results show that the PDS under the LMF remains basically.unchanged at different solidification distances, and it is greater than that under no LMF. With the increase of magnetic field intensity. the PDS increases and the macrosegregation decreases. The increasing PDS and reducing segregation under the LMF can be attributed to the increase of solute boundary.lay.r, which expands the non-equilibrium freezing temperature range and brings the effective partition coefficient closer to 1. The increase of the solute enrichment lay.r thickness could be caused by.the downward secondary.circulation generated by.the thermoelectric magnetic convection(TEMC) near the interface, which drives the migration of solutes towards the interdendritic region. This work not only.clarifies the mechanism of LMF controlling PDS and reducing segregation by.TEMC, but also provides theoretical guidance for producing high-quality.SC superalloy. using magnetic fields.

关键词： Primary.dendrite spacing Segregation Single cry.tal superalloy Directional solidification Magnetic field Thermoelectric magnetic convection

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