简介：Agriculturalapplicationofrareearth(RE)hasbeengeneralizedforseveraldecades,anditisinvolvedincrops,vegetablesandstockraisinginChina.However,alltheresearchesonREmainlyfocusonthefieldssuchasplantphysiologicalactivity,physiologicalandbiochemicalmechanism,sanitationtoxicologyandenvironmentalsecurity.PlantprotectionbyusingREandtheinducedresistanceofplantagainstdiseasesweresummarized.Themechanismofrareearthagainstplantdiseaseishighlighted,whichincludesfollowingtwoaspects.First,REelementscancontrolsomephytopathogendirectlyandreduceitsvirulencetohostplant.AnotherpossibilityisthatREelementscanaffecthostplantandinducetheplanttoproducesomeresistancetodisease.

简介：Thispaperdescribesthealloydesignphilosophyfortheimprovementoflong-termcreepstrengthoftemperedmartensitic9Crsteel,includingweldedjoints.Thecreeplifetrisinverselyproportionaltotheminimumcreeprateεmintimestheincreaseincreepratebystraindlnε/dεintheaccelerationregionastr=1.5/[(εmin)（dlnε/dε）].Theparametersεminanddlnε/dεarecloselycorrelatedwiththetimetominimumcreepratetmandthestraintominimumcreeprateεm,whichcharacterizethecreepdeformationbehaviorinthetransientregion.Theboundaryandsub-boundaryhardeningisshowntobethemostimportantstrengtheningmechanismincreepof9Crsteelandisenhancedbyfinedispersionsofprecipitatesalongboundaries.TheadditionofboronreducesthecoarseningrateofM23C6carbidesalongboundariesnearprioraustenitegrainboundariesduringcreep.Theenhancementofboundaryandsub-boundaryhardeningincreasesthetmanddecreasestheεmin,whichimprovesthecreeplife.Theboundaryandsub-boundaryhardeningissignificantlyreducedinfine-grainedregionofheataffected-zone（HAZ）ofconventionalsteelP92weldedjoints,promotingTypeⅣfracture.InNIMS9Crboronsteelweldedjoints,thedistributionofcarbonitridesalongboundariesaresubstantiallythesamebetweentheHAZandbasemetal,suppressingtheTypeⅣfracture.

简介：Inthelastthreedecadesnewstrongermodified9%Crsteelshavebeenintroducedinnewpowerplantswithsteamparametersupto300bar(1bar=10~5Pa)and600℃.Inordertofurtherincreasethesteamparametersofsteelbasedpowerplantsuptoatargetvalueof650℃/325baritisnecessarytodoublethecreepstrengthcomparedwithtodaysstrongest9%Crsteels,andatthesametimetheresistanceagainststeamoxidationmustbeimprovedbyadding12%Crtothesteel.However,sofarallattemptstomakestronger12%Crsteelshavebeenunsuccessfulbecausethehighchromiumcontentintroducedseveremicrostructureinstabilitiesinthetestedsteels.Recently,itwasfoundthatthemicrostructureinstabilitiesin11%-12%CrsteelscanbeexplainedbytheprecipitationofcoarseCr(V,Nb)NZ-phases,whichdissolvefine(V,Nb)Nnitrides.AnewpossibilitytousetheZ-phaseforstrengtheningof12%Crsteelshasbeenidentified,andthedevelopmentofstablestrongmartensitic12%Crsteelsbasedonthisconceptisexpectedtoallowtheconstructionof325bar/650℃steampowerplantsallbasedonsteel.

简介：TheIronmakingPlantofTangshanIron&SteelCo.Ltd.takescleanproductionasitsorientation.Itdecreasessilicontosmeltthroughincreasingtheenteringfurnacesinterratio,stabilizingcokequalitybytacklingkeyproblems,increasingcoalinjectionratio,aswellaskeepingtheblastfurnacesmoothrunningandsoon.Theenergyconsumptionofsinterworkingprocedurehasbeengreatlyreducedthroughoptimizingtheoreblenderstructure,enhancingthequalityoffuelandflux,increasingthequicklimeamount,reclaimingtheremainingheatoftheannuluscoolingsystemanddeepeningthemateriallayertosinter.Wehaveachievedtherepetitioneconomyandthesecondlyresourcehasbeenusedsyntheticallywithadvancedproducingtechnics.Theenvironmentaroundtheplanthasbeengreatlyimprovedbypreventing,monitoringandfatheringthemovingpollutionroot,atthesametime,theeconomyandenvironmentdevelopmentinphasehasbeengreatlyaccelerated.

简介：Baosteel's5mheavyplateplantwassuccessfullytestedonMarch1,2005.Sincethen,theHeavyPlatePlantofBaosteel(hereinafterreferredtoas'theplant')hasbeenencouragingitsemployeestostudyandtracetheadvancedheavyplatetechnologies,tryingtofindouttherulesofheavyplateproductionanditsqualitycontrol.TheplanthasgraduallymasteredthismodernheavyplateplantandensuredthatBaosteel'sproductionofheavyplatesgrewyearbyyear,with1.41Mtproductputinstoragein2007.Theplanthasfocusedondevelopingnewtechnologiesandproducts,meanwhileenhancingitscapacity.Ithasproducedaseriesofplateproducts,whichcanbeusedinmanufacturingshiphulls,pipelines,bridges,buildings,boilersandpressurevessels.

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简介：Theslidinggateusedtostopslagduringconvertertappingissimilartothecontrolofslidegateinladle,withtheslidinggatedeviceinstalledoutsidetheBOFtappingholetip.Owingtothequickopeningandclosing(in0.5s)oftheslidinggate,itcannotonlyeffectivelystopthepre-slagandpost-slagduringconvertertappingbutalsoautomaticallyjudgeandstopslagwiththehelpofAMEPAslagdetectingandPLCcontroltechnology.Currentlyitisregardedasthebestprocesstostopslagduringconvertertapping.

简介：采用5水平Box-Behnken设计的反应表面方法论(RSM)被用来优化铈(III)的biosorption到动物和植物起源viz的biowaste材料上。对虾甲壳(PC)和玉米风格(CS)。各种各样的过程参数viz。pH(一：3.0–9.0)，生物资源剂量(B：0.05–0.35g/L)，起始的金属集中(C：50–350mg/L)，接触时间(D：2–6h)并且温度(E：20–60°C)为优化被选择。木头转变被盒子艇长阴谋在现在的盒子中建议。低p值<0.0001验证了模型的意义。为PC的218.3mg/g和为CS的180.2mg/g的最大的Ce(III)举起在最佳条件下面被注意。在平衡等温线之中，Freundlich模型被发现是而兰米尔模型证明最好适合在CS上建议铈biosorption的同类的模式，在PC上建议biosorption的一个异构的模式的最好适合的那个。这被扫描电子显微镜学(SEM)进一步证实。运动研究显示出作为位于这个过程下面的现象建议physisorption的伪first顺序模型的更好的适用性。电影散开被博伊德阴谋的非线性建议。热力学的研究证明这个过程吸热、自发。FTIR分析在Ce(III)biosorption期间证实了酰胺，胺，酉同类和主要白酒组的参予的主要参与。EDAX分析在Ce(III)biosorption期间证实了碳组的主要参予。这是Ce(III)biosorption的参数优化上的第一份报告到用可能从水的环境对Ce(III)的恢复有用的5水平Box-Behnken试验性的设计的biowaste材料上。