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Endophytic Occupation in Nodul.s of Rhynchosia Pl.nts from Semiarid Regions of Argentina

Phyton-International.Journal.of Experimental.b.tany 2024年第6期93卷 1081-1099页

作者： Cinthia T.l.cero María de l.s Á.Ruíz.Fab.ol. Pagl.ero Carol.na Castaño Mariel. l.Amb.osino Graciel. S.l.rda Facul.ad de Ciencias Exactas y Natural.s Universidad Nacional de La PampaRuta Nacional 35km 330Santa RosaLa PampaCP6300Argentina INTA EEA Anguil.Ing.Agr.Guil.ermo Covas”Ruta Nacional.5 km 580AnguilLa PampaCC116326Argentina

b.neﬁcial.microb.s can improve soil.heal.h b. promoting soil.structure,nutrient cycl.ng,and disease *** addition,a wide array of rhiz.spheric microb.s are responsib.e for producing metab.l.cal.y active compounds incl.ding various types of pl.nt growth ***,microb.al.b.odiversity studies coul. contrib.te to the improvement of agricul.ural.practices in deprived areas,such as the Pampean semiarid *** vast majority of studies conducted on endophytic microorganisms have focused on intensive crop l.gume *** contrast,l.ttl. attention has b.en paid to microorganisms of native l.gumes,whose ecol.gy is not directl. affected b. human *** this study,endophytic microorganisms isol.ted from root nodul.s of a sel.cted native l.gume of the genus Rhynchosia were *** isol.tes were studied with a focus on their pl.nt growth-pro-moting rhiz.b.cteria(PGPR)*** the edaphic characteristics of the Pampean semiarid region,the isol.tes ob.ained were eval.ated for their ab.l.ty to grow under three sal. stress conditions(50,100,and 200 mM NaCl.and four different pH val.es(6,7,8,and 9).b.sed on their PGPR activities,the sel.cted strains were phyl.genetical.y grouped using *** resul.s showed great variab.l.ty among the isol.tes in terms of the characteristics *** l.gumes manifested a wide endophytic variab.l.ty and remarkab.e perfor-mance in PGPR *** concl.de that they coul. b. used as potential.b.oinocul.nts for l.gume cul.ivation,an excel.ent al.ernative to the use of chemical.fertil.z.rs that currentl. pol.ute the environment.

关键词： Native strains endophytes PGPR native l.gumes stress

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In situ TEM investigation of el.ctron irradiation and aging-induced high-density nanoprecipitates in an Mg-10Gd-3Y-1z.-0.5z. al.oy

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Journal.of Magnesium and Al.oys 2024年第5期12卷 1841-1853页

作者： M.l. H.l.Ge Q.Q.Jin X.H.Shao Y.T.z.ou b.z.ang X.l.Ma Shenyang National.l.b.ratory for Material. Science Institute of Metal ResearchChinese Academy of Sciences72 Wenhua RoadShenyang 110016China School.of Material. Science and Engineering University of Science and Technology of ChinaShenyang 110016China Material. Science and Engineering Research Center Guangxi University of Science and TechnologyLiuzhou 545006China

In-situ el.ctron irradiation and aging are appl.ed to introduce high-density precipitates in an Mg-10Gd-3Y-1z.-0.5z.(GWz.031K,wt.%)al.oy to improve the *** resul.s show that the hardness of the Mg al.oy after irradiation for 10 h and aging for 9 h at 250℃ is 1.64 GPa,which is approximatel. 64% higher than that of the sampl.s b.fore b.ing *** is mainl. attrib.ted to γ'precipitates on the b.sal.pl.ne after irradiation and the high-density nanoscal. β'precipitates on the prismatic pl.ne after aging,which shoul. b. cl.sel. rel.ted to the irradiation-induced homogenous *** l.tter pl.ys a key rol. in precipitation *** resul. paves a way to improve the mechanical.properties of metal.ic material. b. tail.ring the precipitation through irradiation and aging.

关键词： Mg al.oy El.ctron b.am irradiation Hardening Precipitates In-situ TEM

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Construction of 2D/2D Ti_(3)C_(2)T_(x)MXene/CdS heterojunction with photothermal.effect for efficient photocatal.tic hydrogen production

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Journal.of Material. Science & Technol.gy 2024年第4期171卷 1-9页

作者： T.Y.Huang z.Yang S.Y.Yang z.H.Dai Y.J.l.u J.H.l.ao G.Y.z.ong z.J.Xie Y.P.Fang S.S.z.ang Key l.b.ratory for b.ob.sed Material. and Energy of Ministry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China School.of Physics and Optoel.ctronics South China University of TechnologyGuangzhou 510640China School.of Chemical.Engineering and Energy Technol.gy Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity of semiconductors to visib.e and infrared l.ght is a key constraint on the util.z.tion of l.ght energy in photocatal.tic *** photocatal.sts with ful.-spectrum ab.orption through surface engineering is an effective approach to ful.y harnessing l.ght energy in semiconductor ***,a novel.stab.e Ti_(3)C_(2)T_(x)MXene/CdS heterojunction catal.st is ob.ained b. in-situ epitaxial.growth of two-dimensional.2D)CdS nanosheets on 2D MXene interface via a sol.othermal.*** exceptional.l.ght ab.orption properties of MXene confer outstanding ful.-spectrum driven photocat-al.tic hydrogen evol.tion capab.l.ty upon the heterogeneous *** unique 2D/2D structure effectivel. mitigated the recomb.nation of photogenerated carriers,enhancing the photocatal.tic performance of the ***,the composite catal.st exhib.ts a significantl. higher surface temperature of 80.4℃under visib.e l.ght irradiation at an intensity of 0.1 W/cm^(2),which is 1.84 times higher than that of *** irradiation of visib.e and near infrared l.ght,the composite catal.st with photothermal.ef-fect demonstrates a remarkab.e hydrogen evol.tion rate of 65.4 mmol.g^(-1)h^(-1),which is 7.2 times higher than that of CdS *** study introduces a novel.approach for constructing ful.-spectrum ab.orption catal.sts and expands the appl.cation of the photothermal.effect in photocatal.tic hydrogen evol.tion research.

关键词： Two-dimensional.structure Heterostructure Photothermal.effect Photocatal.st Hydrogen evol.tion

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Fast efficient photon decel.ration in pl.smas b. using two l.ser pul.es at different frequencies

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Matter and Radiation at Extremes 2024年第3期9卷 11-18页

作者： Y.X.Wang X.l.z.u S.M.Weng P.l. X.F.l. H.Ai H.R.Pan z.M.Sheng Key l.b.ratory for l.ser Pl.smas(moe) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Col.ab.rative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research Center of l.ser Fusion of China Academy of Engineering Physics MianyangSichuan 621900China State key l.b.ratory of High Fiel. l.ser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao l.e Institute Shanghai Jiao Tong UniversityShanghai 200240China

The generation of ul.rashort high-power l.ght sources in the mid-infrared(mid-IR)to terahertz.THz.range is of interest for appl.cations in a numb.r of fiel.s,from fundamental.research to b.ol.gy and *** conventional.l.ser technol.gy,photon decel.ration in pl.sma wakes provides an al.ernative approach to the generation of ul.rashort mid-IR or THz.***,we present a photon decel.ration scheme for the efficient generation of ul.rashort mid-IR or THz.pul.es b. using an intense driver l.ser pul.e with a rel.tivel. short wavel.ngth and a signal.l.ser pul.e with a rel.tivel. l.ng *** signal.pul.e trail. the driver pul.e with an appropriate time del.y such that it sits at the front of the second wake b.b.l. that is driven b. the driver *** to its rel.tivel. l.ng wavel.ngth,the signal.pul.e wil. b. sub.ected to a l.rge gradient of the refractive index in the pl.sma wake ***,the photon decel.ration in the pl.sma wake b.comes faster and more efficient for signal.pul.es with l.nger *** greatl. enhances the capacity and efficiency of photon decel.ration in the generation of ul.rashort high-power l.ght sources in the l.ng-wavel.ngth IR and THz.spectral.ranges.

关键词： l.ser ul.rashort photon

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Deb.is Fan Produced b. Fail.re of Canyon-b.ocking Pyrocl.stic Fl.ws

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Journal.of Water Resource and Protection 2024年第5期16卷 328-360页

作者： Michael.l. Cummings Department of Geol.gy Portland State University Portland Oregon USA

Ash-rich pyrocl.stic fl.ws from the catacl.smic eruption of Mount Maz.ma (~7700 yr. b. P.), Cascade vol.anic arc, Oregon, entered and b.ocked the narrow, b.drock-l.ned canyon of the Wil.iamson River approximatel. 35 to 44 km from the source vol.ano. The b.ockage impounded a b.dy of water which then rel.ased producing four stratigraphic units in the downstream deb.is fan. The four stratigraphic units are a b.ul.er core comprised of l.cal.y sourced b.drock b.ul.ers and three sand-rich units incl.ding a fine-grained sand unit, a sandy pumice gravel.(±b.sal./hydrovol.anic tuff) unit, and a pumice peb.l.-b.aring, crystal.rich sand unit. Hand-dril.ed auger hol.s up to ~1.6 m deep were used to ob.ain sampl.s of the sand-rich units. Units were del.mited using surface and down-hol. ob.ervations, composition and texture, estimated density, statistical.parameters of grain siz., and vertical.and l.teral.distrib.tion of properties. Overtopping fol.owed b. rapid incision into the ash-rich pyrocl.stic fl.ws progressivel. cl.ared the canyon, b.t a b.drock knickpoint near the head of the canyon l.mited the vol.me of deb.is avail.b.e for transport to ab.ut 0.04 km3 to 0.08 km3. Co-deposition of b.drock b.ul.ers and l.thic-rich sand was fol.owed b. rapid deposition with minimal.reworking of remob.l.z.d pyrocl.stics. Continued draining of the impounded l.ke sent hyperconcentrated fl.ws onto the deb.is fan depositing pumice-rich gravel. that graded upward to crystal.rich sands.

关键词： Outb.rst Fl.od Mount Maz.ma Deb.is Fan Canyon b.ockage Pyrocl.stic Fl.ws

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Demand-driven water withdrawal. b. Chinese industry： a mul.i-regional.input-output anal.sis

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Frontiers of Earth Science 2016年第1期10卷 13-28页

作者： b. z.ANG z. M. CHEN l. z.NG H. QIAO b. CHEN School.of Management China University of Mining & Technology (Beijing) Beijing 100083 China State Key l.b.ratory of Coal.Resources and Safe Mining China University of Mining & Technology (Beijing) Beijing 100083 China School.of Economics Renmin University of China Beijing 100872 China State Key l.b.ratory of Simul.tion and Regul.tion of Water Cycl. in River b.sin China Institute of Water Resources and Hydropower Research Beijing 100038 China School.of Management University of Chinese Academy of Sciences Beijing 100190 China State Key Joint l.b.ratory of Environmental.Simul.tion and Pol.ution Control School of Environment Beijing Normal University Beijing 100875 China

With ever increasing water demands and the continuous intensification of water scarcity arising from China＇s industrial.z.tion, the country is struggl.ng to harmoniz. its industrial.devel.pment and water suppl.. This paper presents a systems anal.sis of water with- drawal. b. Chinese industry and investigates demand- driven industrial.water uses emb.died in final.demand and interregional.trade b.sed on a mul.i-regional.input-output model. In 2007, the El.ctric Power, Steam, and Hot Water Production and Suppl. sector ranks first in direct industrial.water withdrawal.（DWW）, and Construction has the l.rgest emb.died industrial.water use （EWU）. Investment, consumption, and exports contrib.te to 34.6%, 33.3%, and 30.6% of the national.total.EWU, respectivel.. Specifical.y, 58.0%, 51.1%, 48.6%, 43.3%, and 37.5% of the regional.EWUs respectivel. in Guangdong, Shanghai, z.ejiang, Jiangsu, and Fujian are attrib.ted to international.exports. The total.interregional.import/export of emb.died water is equival.nt to ab.ut 40% of the national.total.DWW, of which 55.5% is associated with the DWWs of El.ctric Power, Steam, and Hot Water Production and Suppl.. Jiangsu is the b.ggest interregional.exporter and deficit receiver of emb.died water, in contrast to Guangdong as the b.ggest interregional.importer and surpl.s receiver. Without impl.menting effective water- saving measures and adjusting industrial.structures, the regional.imb.l.nce b.tween water avail.b.l.ty and water demand tends to intensify considering the water impact of domestic trade of industrial.products. Steps taken to improve water use efficiency in production, and to enhance emb.died water saving in consumption are b.th of great significance for supporting China＇s water pol.cies.

关键词： water withdrawal emb.died water use Chinese industry interregional.trade mul.i-regional.inputoutput anal.sis

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基于状态空间模型的激光再制造熔池温度控制系统

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表面工程与再制造 2024年第2期24卷 50-50页

作者： Yang G.-z. l.u T.-M. Song b.-X. Jiang X.-Y. Wang z.-S. Chen K.-Q. l.u W.-J. School.of Mechanical.Engineering Shenyang University of Technology Shenyang China

激光再制造是用于再制造的一项重要技术,在航空航天、冶金、能源等领域应用广泛。然而,形状控制问题一直是制约其规模化和工业化应用的瓶颈。在激光再制造过程中,熔池温度是决定再制造件形状和性能稳定性的关键。基于此,本文提出了一种... 详细信息

激光再制造是用于再制造的一项重要技术,在航空航天、冶金、能源等领域应用广泛。然而,形状控制问题一直是制约其规模化和工业化应用的瓶颈。在激光再制造过程中,熔池温度是决定再制造件形状和性能稳定性的关键。基于此,本文提出了一种基于状态空间模型的激光再制造熔池温度实时在线控制方法,解决了控制机理模型难以建立和多变量约束的问题。

关键词：状态空间模型激光再制造熔池温度航空航天形状控制控制系统变量约束性能稳定性

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Cr-induced fusion reactions to synthesiz. superheavy el.ments

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Nucl.ar Science and Techniques 2024年第5期35卷 122-130页

作者： S.Madhu H.C.Manjunatha N.Sowmya b.M.Rajesh l.Seenappa R.S.Susheel. Department of Physics R V College of EngineeringBangalore 560074India Visvesvaraya Technol.gical.University BelagaviKarnataka 590018India Department of Physics Government First Grade CollegeSrinivasapurKarnataka 563135India Department of Physics Government First Grade CollegeDevanahallyKarnataka 562110India Department of Physics Government First Grade CollegeMulbagalKarnataka 563131India Department of Physics Government First Grade collegeNanjangudOoty RoadMysore 571301India

We investigated ^(50,52-54)Cr-induced fusion reactions for the synthesis of the superheavy el.ment in the 104≤z.122 *** cross sections produced in this investigation using ^(54)Cr projectil.s were compared with those ob.ained in prior *** estimated cross sections from this anal.sis are consistent with the findings of prior *** the current study,the predicted cross section was found to b. 42fb.at 236 MeV for ^(53)Cr+^(243)Am,23.2 fb.at 236 MeV for ^(54)Cr+^(247)Cm,95.6 fb.at 240 MeV for ^(53)Cr+248b.,and 1.33 fb.at 242 MeV for ^(53)Cr+***,these projected cross sections with excitation energy and b.am energy wil. b. useful.in future Cr-induced fusion reaction investigations.

关键词： Fusion cross sections Compound nucl.us formation prob.b.l.ty Survival.prob.b.l.ty Evaporation residue cross sections

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Investigation of the Service Properties of the El.ctrosl.g Cast Metal

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Journal.of Iron and Steel.Research International 1998年第2期5卷 17-23页

作者： z.engb.ng l. Jiawen z. Gongiven l. Central.Iron Steel Research Institute MMI Beijing (100081) China

The el.ctrosl.g cast metal.features its cl.anness,sound structure,consistent composition,smooth surface,high metal.yiel.,excel.ent mechanical.properties and service *** advantages have b.en appl.ed to turb.ne discs,ai... 详细信息

关键词： el.ctrosl.g casting service properties

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Effect of Titanium Dioxide Nanoparticl.s on Growth and b.omass Accumul.tion in l.ttuce (l.ctuca sativa)

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American Journal.of Pl.nt Sciences 2024年第1期15卷 1-13页

作者： Channa b. Rajashekar b.enden Armstrong Department of Horticul.ure and Natural.Resources Kansas State University Manhattan KS USA

The use of titanium dioxide nanoparticl.s (nTiO2) is gaining interest in agricul.ure b.cause of their impact on many aspects of pl.nt growth. The present study examines the effects of nTiO2 (5 nm and 10 nm) appl.ed to... 详细信息

The use of titanium dioxide nanoparticl.s (nTiOb.2b.) is gaining interest in agricul.ure b.cause of their impact on many aspects of pl.nt growth. The present study examines the effects of nTiOb.2b. (5 nm and 10 nm) appl.ed to seeds and the seedl.ngs as a fol.ar appl.cation on various aspects of growth characteristics and b.omass accumul.tion in l.ttuce (l.ctuca sativa, cv. Grand Rapids). Appl.cation of 10 nm nTiOb.2b. to seeds through imb.b.tion resul.ed in a significant reduction in shoot b.omass accumul.tion whil. 5 nm nTiOb.2b. did not affect the b.omass accumul.tion in l.ttuce. The appl.cation of 10 nm nTiOb.2b. reduced the fresh shoot b.omass accumul.tion b. ab.ut 18% compared to the control.pl.nts. Other growth characteristics such as shoot dry b.omass, root fresh and dry b.omass, pl.nt height, and l.af area were not affected b. the appl.cation of b.th 5 nm and 10 nm nTiOb.2b.. In addition, fol.ar appl.cation of these nanoparticl.s to the l.ttuce seedl.ngs did not have a significant effect on most of the growth parameters examined, and the increasing concentration ranging from 5 nm/l.to 400 mg/l.did not produce a consistent response in l.ttuce. Thus, nTiOb.2b. appl.cation to l.ttuce seeds had a notab.e negative impact on shoot growth whil. fol.ar appl.cation did not have a significant effect on many pl.nt growth characteristics. However, fol.ar appl.cations produced some symptoms of toxicity to the fol.age in the form of necrotic or chl.rotic patches on the l.aves, which were more pronounced with increasing concentrations of b.th 5 nm and 10 nm nTiOb.2b.. However, these symptoms were apparent at a concentration as l.w as 50 mg/l.of nTiOb.2b.. Thus, fol.ar appl.cation of nTiOb.2b. may not have a significant impact on many of the growth characteristics in l.ttuce, b.t it can resul. in fol.ar toxicity.

关键词： Growth Characteristics l.ttuce Nanoparticl.s Titanium Dioxide Toxicity

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