简介:1.Rareearthmarket2016isthestartyearofthe"13th-FiveYear"andalsoakeyyearforrealizingtheeconomictransformationandindustrialupgrading.Afterseriesofindustrialregulationduring2015,likerareearthresourcetaxreform,reorganizationofthesixrareearthgroups,crackdownonblackindustrialchainsaswellassecuritizationand
简介:Throughtheanalysisoftheprinciple,errorsourcesandprecisionoftrigonometricleveling,thispaperpointsoutthekeyproblemsaboutfirstorderlevelingreplacedbytrigonometricleveling;andforthefirsttimeputsforwardthat,insomegivenconditions,itisnotonlyfeasiblebutalsovaluabletoreplacefirstorderlevelingbyprecisetrigonometricleveling,andprovesitbyexperimentationaswell.Thecontentandconclusionofthispaperhaveconsultingsignificanceandpracticablevalueforoursettingdownrelationalcriterionandproductionpractice.
简介:InthispaperwereanalyzeSaid’s(2011)workbyretainingallhisassumptionsexceptthatweusethefirst-priceauctiontoselldifferentiatedgoodstobuyersindynamicmarketsinsteadofthesecond-priceauction.Weconcludethatexceptfortheexpressionoftheequilibriumbiddingstrategy,alltheresultsforthefirst-priceauctionareexactlythesameasthecorrespondingonesforthesecond-priceauctionestablishedbySaid(2011).Thisimpliesthatthewell-known'revenueequivalencetheorem'holdstrueforSaid’s(2011)dynamicmodelsetting.
简介:ImportofrareearthmetalandalloyinChinaup38%inthefirstquarteryear-on-yearAccordingtocustomsstatistics,Chinaimported27.67tonsofrareearthmetalsandalloysinMarch,valuedUSD427,200.ImportsfromJanuarytoMarchaccumulatedto100.4tons,up38.1%year-on-year.TheimportvaluetotaledUSD1.28millionduringthefirstthreemonths.DuringJanuarytomarch,Chinaimported65.9
简介:InApril2005,theSouthernPowerGridCo.,Ltd.entrustedChinaPowerEngineeringConsultingGroupCorporationwithanevaluationofafeasibilitystudyreport(partofsystemtransmissionscheme)onthefirstUHVprogram-Yun-GuangDCtransmissionproject.Itsvoltageclassandtransmissioncapacityaretobe+_800kVand5000MWrespectively.ItsstartingpointwillbeinthenorthwestofKunmingandconvertersubstationwillbeinZengdongDistrictofGuangzhou.Evaluationexpertsheldthat,1)YunnanisrichinenergyresourcesavailabletobuildenergybasesandGuangdonghasalargemarketspacetoreceiveelectricityfromYunnan;2)the+800-kVDCtransmissiontechniqueiseconomicallyfeasible;
简介:Thefinalgoaloffusionenergyresearchistomakeiteconomicallycompetitiveandthecostofelectricity(COE)aslowasacceptablebytheenergymarket.Thereforethefusionplasmahastobeoperatingwithhighpowerdensityandtheplasmafacingcomponents(PFC),suchasfirstwallanddivertor,havetosustainhighsurfaceheatloadandbombardmentwithhighparticleflux.SuchrigorousenvironmentsconsequentiallyleadtoseveredamageanderosionofPFCmaterials.Asaresult,thelifetimeofPFCwouldbeshortened.
简介:AwarmspringsunshinesonaspacioushorseracegroundinTibet.Atteno’clockinthemorning,horsemanshiptrainingformallystarts.Awoman,morethan30yearsold,ridesahorseatgallopinginfrontofagroupofriders.Shestandsuporbendsflatonthehorseback,shoutinginstructionsamidthesoundofhoofs.SheisDawaZhuoma,thefirstwomanhorsemanshipinstructorinTibet
简介:Braintumorsincidenceinpediatricagehasbeenestimatedbetween1.3to5%witharelativeincidenceof1.4to11%duringthefirstyearoflife;theimprovementininstrumentaldeviceshasleadtoarelativeincreaseinprecociousdiag-nosis.Thechoicetostudybraintumorsofthefirstyearoflifeasaseparatetopicfrompediatricageonesdependsontheobservationthatthesele-sionshavepeculiarclinical,topographicandtis-sularcharacteristics.Thesurvivalrateofthesepatientsisverypoorifcomparedwiththatfound
简介:Inthefirsthalfof2005,therewasatrendofstructuralreforminBaotourareearthindustry.Industrychainswereextendedfromprimaryleveltohigh-level.MaineconomyindexesofBaotourareearthindustryandyieldsofmajorrareearthproductsinthefirsthalf-yearwereshowninTable2andTable3respectively.Table2MainEconomyIndexesofBaotouREIndustryCategoryAccumulatedvalueoftotaloutputofindustryValueaddedSalesincomePayingtaxesForeigncurrencyearningMainIndexRMB1.51...