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Assessment of mol.cul.r markers and marker-assisted sel.ction for drought tol.rance in barl.y(Hordeum vul.are l.)

Journal.of Integrative Agricul.ure 2024年第1期23卷 20-38页

作者： Akmaral.Baidyussen Gul.ira Khassanova Maral.Utebayev Satyval.y Jatayev Rystay Kushanova Shol.an Khal.ayeva Aigul.Amangel.iyeva Raushan Yerzhebayeva Kul.ashBul.tova Carl. Schramm Peter Anderson Col.n l.D.Jenkins Kathl.en l.ool. Yuri Shavrukov Facul.y of Agronomy S.Seifullin Kazakh AgroTechnical Research UniversityAstana 010000Kazakhstan A.I.Barayev Research and Production Centre of Grain Farming Shortandy 021601Kazakhstan Kazakh Research Institute of Agricul.ure and Pl.nt Growing AlmalybakAlmaty District 040909Kazakhstan Col.ege of Science and Engineering Biological SciencesFlinders UniversityAdelaideSA 5042Australia

This review updates the present status of the fiel. of mol.cul.r markers and marker-assisted sel.ction(MAS),using the exampl. of drought tol.rance in *** accuracy of sel.cted quantitative trait l.ci(QTl.),candidate genes and suggested markers was assessed in the barl.y genome *** common strategies are described for mol.cul.r marker devel.pment,candidate gene identification and verification,and their possibl. appl.cations in MAS to improve the grain yiel. and yiel. components in barl.y under drought *** strategies are based on the fol.owing five principl.s:(1)Mol.cul.r markers are designated as genomic‘tags’,and their‘prediction’is strongl. dependent on their distance from a candidate gene on genetic or physical.maps;(2)pl.nts react differentl. under favourabl. and stressful.conditions or depending on their stage of devel.pment;(3)each candidate gene must be verified by confirming its expression in the rel.vant conditions,e.g.,drought;(4)the mol.cul.r marker identified must be val.dated for MAS for tol.rance to drought stress and improved grain yiel.;and(5)the smal. number of mol.cul.r markers real.zed for MAS in breeding,from among the many studies targeting candidate genes,can be expl.ined by the compl.x nature of drought stress,and mul.ipl. stress-responsive genes in each barl.y genotype that are expressed differential.y depending on many other factors.

关键词： barl.y candidate genes drought tol.rance gene verification via expression grain yiel. marker-assisted sel.ction(MAS) mol.cul.r markers quantitative trait l.ci(QTl.) strategy for MAS

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Petrol.gic evol.tion of the Gysian ophiol.tic serpentinites,NW Iran

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Acta Geochimica 2024年第5期43卷 996-1011页

作者： Monir Modjarrad Donna l.Whitney Hadi Omrani Department of Geol.gy Faculty of SciencesUrmia UniversityUrmiaIran Department of Earth and Environmental.Sciences University of MinnesotaMinneapolisMNUSA Department of Geol.gy Faculty of SciencesGolestan UniversityGorgānIran

The Gysian ophiol.te of NW Iran is l.cated at the intersection of the ophiol.te bel.s of SE Turkey,NE Iraq,and Iran,and provides the opportunity to investigate the preserved subduction and obduction history of an important tectonic site that has not previousl. been *** serpentinized peridotites of the Gysian ophiol.te contain the assembl.gel.zardite+chrysotil.+spinel.Mg-spinel.ith rel.ct cl.nopyroxene(diopside)and very rare rel.ct orthopyroxene and *** compositions of cl.nopyroxenes and spinel. are more consistent with the formation of the inferred protol.thharzburgitesinafore-arcorsupra-subduction zone instead of an abyssal.*** Gysian ophiol.te is a remnant of the Neo-Tethyan arc-ophiol.tic system and records shal.ow subduction(l.te Cretaceous to Pal.ocene beforeobductional.ngthrustfaul.soverthecontinental.*** review the spatial.trends of the metamorphic grade of the Neo-Tethyan ophiol.tes in this region and provide detail.d information about the petrol.gy and mineral.chemistry of the Gysian ophiol.te.

关键词： Ophiol.te Neo-Tethyan Gysian Serpentinite Iran

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Expl.ring the mechanical.behavior and microstructure of compacted l.ess subjected to dry-wet cycl.s and chemical.contamination

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Journal.of Rock Mechanics and Geotechnical.Engineering 2024年第9期16卷 3673-3695页

作者： Yongpeng Nie Wankui Ni Xiangfei l. Wenxin Tuo Col.ege of Geol.gical.Engineering and Geomatics Chang'an UniversityXi'an710054China Department of Civil.Engineering Nagoya Institute of TechnologyNagoya466-8555Japan School.of Water and Environment Chang'an UniversityXi'an710054China

Due to cl.matic factors and rapid urbanization,the soil.in the l.ess Pl.teau,China,experiences the coupl.d effects of dry-wet cycl.s and chemical.*** the mechanical.behavior and corresponding microstructural.evol.tion of contaminated l.ess subjected to dry-wet cycl.s is essential.to el.cidate the soil.degradation ***,direct shear and consol.dation tests were performed to investigate the variations in mechanical.properties of compacted l.ess contaminated with acetic acid,sodium hydroxide,and sodium sul.ate during dry-wet *** mechanical.response mechanisms were investigated using zeta potential.mineral.chemical.composition,and scanning el.ctron microscopy(SEM)*** resul.s indicate that the mechanical.deterioration of sodium hydroxidecontaminated l.ess during dry-wet cycl.s decreases with increasing contaminant concentration,which is mainl. attributed to the thickening of the el.ctrical.doubl. l.yer(EDl.by Nat and the precipitation of cal.ite,as wel. as the formation of col.oidal.fl.cs induced by OH,thus inhibiting the devel.pment of l.rge pores during the dry-wet *** contrast,the attenuation of mechanical.properties of both acetic acid-and sodium sul.ate-contaminated l.ess becomes more severe with increasing contaminant concentration,with the l.tter being more particul.rl. *** is primaril. due to the reduction of the EDl.thickness and the erosion of cement in the acidic environment,which facil.tates the connectivity of pores during dry-wet ***,the sal. expansion generated by the drying process of sal.ne l.ess further intensifies the structural.***,the mechanical.performance of compacted l.ess is sensitive to both pol.utant type and concentration,exhibiting different response patterns in the dry-wet cycl.ng condition.

关键词： Contaminated l.ess Dry-wet cycl.s Compressibil.ty Shear strength Microstructural.evol.tion

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A comprehensive review on the processing-property rel.tionships of l.ser strengthened magnesium

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Journal.of Magnesium and Al.oys 2024年第1期12卷 1-34页

作者： Al.ssandro M.Ral.s Aaksheta Agnel.Pradeep l.Menezes Department of Mechanical.Engineering University of Nevada RenoRenoNV 89557United States

Among the existing series of softer metal.,magnesium(Mg)has attracted much attention due to its impressive strength-to-weight ***,due to its ease of deformabil.ty,Mg tends to suffer from rapid degradation in a wide variety of abrasive and el.ctrochemical.*** method of improving its surface properties is through surface modification *** the existing techniques,l.ser shock peening(l.P)has been one of the most widel. util.zed processes due to its surface-hardening-l.ke *** this understanding,a comprehensive review has yet to exist that encapsul.tes the strengthening mechanism of l.P for Mg and its infl.ence in degradation *** review aims to encapsul.te the existing research around the l.P fiel. for ***,an understanding of the surface-strengthening effects in rel.tion to its mechanical.tribol.gical.corrosion,and tribo-corrosion characteristics is ***,the feasibil.ty of l.P for Mg material. in critical.industries is al.o *** this work,a novel.understanding of l.P for Mg can be understood,which can provide a future direction for research in this fiel..

关键词： l.ser shock peening Magnesium Surface deformation Tribol.gy Microstructure

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Spark Pl.sma Sintering of Mg-based Al.oys:Microstructure,Mechanical.Properties,Corrosion Behavior,and Tribol.gical.Performance

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Journal.of Magnesium and Al.oys 2024年第2期12卷 405-442页

作者： Al.ssandro M.Ral.s Mohammadreza Daroonparvar Pradeep l.Menezes Department of Mechanical.Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark pl.sma sintering(SPS)has become an increasingl. popul.r process for Mg *** the SPS process,interparticl. diffusion of compressed particl.s is rapidl. achieved due to the concept of Joul. *** to traditional.and additive manufacturing(AM)techniques,SPS gives unique control.of the structural.and microstructural.features of Mg *** doing so,their mechanical.tribol.gical.and corrosion properties can be *** great advancements in this fiel. have been made,these pieces of knowl.dge are scattered and have not been contextual.zed into a singl. *** motivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS manufacturing for *** do so,the existing body of SPS Mg l.terature was first surveyed,with a focus on their structural.formation and degradation *** was found that successful.Mg SPS fabrication highl. depended on the processing temperature,particl. size,and particl. *** addition of metal.and ceramic composites al.o affected their microstructural.features due to the Zener pinning *** degradative environments,their performance depends on their structural.features and whether they have secondary phased *** industrial.appl.cations,SPS'd Mg was found to have great potential.in biomedical.hydrogen storage,battery,automotive,and recycl.ng *** prospects to advance the fiel. incl.de using Mg as a doping agent for crystal.ite size refinement and using bul. metal.ic Mg-based gl.ss powders for amorphous SPS *** these findings,the interactions of mul.i-composites on the processing-structure-property rel.tionships of SPS Mg is not wel. *** total.this work wil. provide a useful.direction in the SPS fiel. and serve as a mil.stone for future Mg-based SPS manufacturing.

关键词： Spark pl.sma sintering Magnesium al.oys Nanocrystal.ine Tribol.gy Mechanical.properties Corrosion

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Biomaterial. and emerging technol.gies for tissue engineering and in vitro model.

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Bio-Design and Manufacturing 2024年第3期7卷 237-239页

作者： J.Miguel.Ol.veira Rui l.Reis 3B’s Research Group I3Bs-Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate l.boratory 4806-909 Braga/GuimarãesPortugal

The l.test advances in the fiel. of biomaterial. have opened new avenues for scientific breakthroughs in tissue engineer-ing which greatl. contributed for the successful.transl.tion of tissue engineering products into the market/***-material. are easil. processed to become simil.r to natural.extracel.ul.r matrix,making them ideal.temporary supports for mimicking the three-dimensional.3D)microenvironment required for maintaining the adequate cel./tissue functions both in vitro and in vivo^([1]).

关键词： breakthrough biomaterial. engineer

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A seed and soil.model.of l.nel.ness in Al.heimer's disease

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Neural.Regeneration Research 2024年第12期19卷 2575-2576页

作者： Hannah l.Apostol.u Ian M.McDonough Department of Psychol.gy The University of AlabamaTuscaloosaALUSA Department of Psychol.gy Binghamton UniversityBinghamtonNYUSA

l.nel.ness is cl.ssical.y defined as a resul. of perceiving a discrepancy between the desired quantity and qual.ty of one's social.l.fe and actual.social.rel.tionships(Perl.an and Pepl.u,1984).l.fespan research has indicated ol.er adul.s are among the highest risk for experiencing l.nel.ness because their social.network size decreases more frequentl. than that of younger adul.s.

关键词： Al.heimer younger soil

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Error-based adaptive optimal.tracking control.of nonl.near discrete-time systems

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Science China(Information Sciences) 2024年第1期67卷 154-167页

作者： Chun l. Jinl.ang DING Frank l.l.WIS Tianyou CHAI State Key l.boratory of Synthetical.Automation for Process Industries Northeastern University UTA Research Institute The University of Texas at Arlington

In this paper,for the output tracking probl.m of nonl.near discrete-time systems,a performance index is newl. defined using the adaptive dynamic programming(ADP) technique to compl.tel. el.minate tracking errors in *** contrast to traditional.definitions of performance indices in other ADP-based methods,the proposed performance index is not onl. designed from the perspective of output tracking errors but al.o introduced errors of system states and control.inputs at adjacent stages,which is suitabl. for practical.situations in many industrial.appl.cations,such as the al.mina production,the fl.tation process,and the mineral.grinding *** proved that the obtained control.er can make the system output ful.y track the given reference trajectory by appl.ing the iterative criteria of the ADP *** addition,the proposed al.orithm was impl.mented using a data-driven technique and neural.networks to avoid anal.zing and deducing the compl.cated dynamics of actual.industrial.***,using historical.data for a forced-circul.tion evaporation system in the al.mina production process,the effect of the proposed approach was verified through a numerical.simul.tion and compared with that of the proportional.integral.control.er.

关键词： adaptive dynamic programming iterative criteria performance index tracking errors tracking probl.m

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Enhancing force sensing in a squeezed optomechanical.system with quantum nondemol.tion measurement

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Communications in Theoretical.Physics 2024年第1期76卷 49-60页

作者： Shi-l.i Chao Zi-Hao l. Xin-You l. School.of Physics Huazhong University of Science and Technology430074 WuhanChina

A theoretical.scheme is proposed to enhance the sensitivity of force sensors with quantum nondemol.tion measurement(QND)in an optomechanical.setup assisted by four-tone optical.driving and an optical.parametric ampl.fier(OPA).With the hel. of special.drive,the system can be simpl.fied as the typical.type of QND for force sensing,so that the backaction noise can be evaded to surpass the standard quantum ***,the added noise can be suppressed owing to the modified optical.susceptibil.ty resul.ing from the *** introducing two oscil.ators coupl.ng with two charged bodies respectivel.,the signal.can be enhanced with the nonl.nearity caused by Coul.mb interaction,whil. the noise presents an exponential.***,considering the homodyne detection effect,the range of system parameters and frequency bands wil. be *** present investigation may provide a route toward simul.aneousl. evading backaction noise,reducing the mechanical.thermal.noise,and enhancing the external.signal.which can be an al.ernative design for sensitive devices.

关键词： force sensing optical.parametric ampl.fier quantum non-demol.tion measurement optomechanical.system

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结合电子束辐照与压电压力波法空间电荷分布实时测量的空间电荷包迁移行为的研究

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物理学报 2024年第2期73卷 278-286页

作者：潘佳萍张冶文李俊吕天华郑飞虎同济大学电子与信息工程学院上海201804

空间电荷包现象是一种特殊的空间电荷现象,具体表现为空间电荷以包的形态沿着极化电场的方向进行迁移.目前针对空间电荷包现象的研究还存在一些不足,研究的对象通常集中在聚乙烯及其交联产物中的正极性空间电荷包.本文提出了一套用于负... 详细信息

空间电荷包现象是一种特殊的空间电荷现象,具体表现为空间电荷以包的形态沿着极化电场的方向进行迁移.目前针对空间电荷包现象的研究还存在一些不足,研究的对象通常集中在聚乙烯及其交联产物中的正极性空间电荷包.本文提出了一套用于负极性空间电荷包特性研究的一体化实验系统,可进行电子束辐照与压电压力波法空间电荷分布实时测量相结合的实验研究,并简要介绍了该系统的结构与功能.该系统适用于不同厚度范围的各类绝缘电介质样品在不同电场下的实验研究.本文使用该实验系统初步研究了在不同外加电场(15,20,2.5,30 kV/mm)下聚丙烯与聚甲基丙烯酸甲酯样品内负极性空间电荷包的迁移行为,并从实验结果中提取了负极性载流子;(电子)的迁移特性.聚丙烯与聚甲基丙烯酸甲酯样品中电子的迁移速率均存在随着电场的增加而减小的负微分迁移率现象,聚丙烯中该现象出现的阈值电场约为26.0 kV/mm,聚甲基丙烯酸甲酯中该现象出现的阈值电场约为19.5 kV/mm,消失的截止电场约为27.5 kV/mm.

关键词：绝缘聚合物空间电荷包电子束辐照载流子迁移率

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