简介:1CurrentStatusandForecastonSupplyandDemandforOilinChina1.1ChineseoiltradebalanceChina'sdemandforcrudeoilhasincreasedsharplysincethe1990's.From1991to2000,theconsumptionofChina'scrudeoilincreasedby6%ayear,buttheoutputstilllaggedfarbehindthedomesticneed(SeeTable1).
简介:
简介:MomentumDistributionofProductsfromTransferandFragmentationTransferandFragmentation¥WuZhongliThemomentumdistribution...
简介:Thesurfacetreatmenttechnologycanimprovethecorrosionresistanceofsteelsheetsandincreasethevalueofsteelapplication.ThesurfacetreatedsteelsheetsinBaosteelincludezincgalvanizedsteelsheets,singalvanizedsteelsheets,chromiumgalvanizedsteelsheets,andcolourcoatingsteelsheetswiththeapplicationintheareafromconstructiontoautomobiles,appliance,package,etc.Thedevelopment,applicationandmanufacturingtechniqueoftheseproductshavebecomethecorecompetitionpowerofBaosteel.ThearticlereviewsthedevelopmentsofsurfacetreatedsteelsheetsandsurfacetreatmenttechnologiesinBaosteelin10years,especiallyhotdipgalvanizedhighstrengthsteelproductsusedinvehicles.ThearticlealsolooksforwardintofurtherdevelopmentsofsurfacetreatmentsteelproductsandtechnologiesinBaosteel,whichwillfocuson:①thenewproductsofhotdipgalvanizedadvancedhighstrengthsteels;②moreenvironmentalfriendlyproductsorfunctionalcoatingproducts;③thedevelopmentofsurfacetreatmenttechnologiestomeettherequirementofhighersurfacequalityinthemarcket;④newtypeofsurfacetreatmentandcoatingtechnologies.
简介:BasedonthesituationthatthetradeofmanufacturedgoodstakesthemainpositioninShandongProvince,thispaperidentifiesShandongindustrialpollutantdischargebythreeindices,whichareindustrialeffluentdischarge,industrialSO2emission,andsolidwastedisposal.Furthermore,itconductsanempiricalanalysisofthetradetermsofpollutioncontenttransferonnineidentifiedindustrialsectors.Theconclusionisthattheincreaseinindustrialeffluentdischarge,industrialSO2emission,andsolidwastedisposalhasparalleledthegrowthoftheGDPinShandong.Therapideconomicgrowthbringsobviousnegativeimpactontheenvironment.Comparedwiththatin1998,theincreaseinthepollutioncontentofexportsin2007indicatedthatmoreenvironmentalcostsweregeneratedwiththeeconomicdevelopmentinShandong.ThereisaneedforoptimizationofforeigntradestructureinShandong,especiallytheneedforincreasingimportofthepollutionintensiveproductsanddecreasingtheexportofthepollutionintensiveproducts.Theresearchontherelationshipbetweenmanufacturedgoodstradeandtheenvironmentalimpactwillmakeacontributiontotheadjustmentofforeigntradeandenvironmentalpolicies.
简介:ThetentativetariffrateforpartialimportandexportproductswasadjustedsinceNovember1~(st)of2006.Total58importedcommoditieswillbeimposedlowertentativetariff
简介:Withthefrequentoccurrenceofagriculturalproductsafetyincidentsinrecentyears,theagriculturalproducts’qualitysafetyhasbecomemoreandmoreconcernedbythepeople.Therelevantsubjectsarethedirectrelationshipwiththequalitysafetyofagriculturalproducts,andplayakeyroleinensuringthequalitysafetyofagriculturalproducts.Thispaperanalyzesthebehaviorperformanceofproductionsubject,circulationsubject,consumptionsubject,supervisionsubjectonagriculturalproducts’qualitysafety,andputsforwardthefollowingcountermeasurestoimprovethequalitysafetyofagriculturalproductsaccordingtotheirbehaviorperformance:toregulatetheproductionofagriculturalproducts,tostrengthenthemanagementandcontrolagriculturalinputs,toimprovethesafetysupervisionsystemofagriculturalproducts,toacceleratethedevelopmentofnewcirculationsubject,toactivelycultivateanddevelopnewtypesagriculturalbusiness,toacceleratetheprocessofagriculturalscalemanagement,toestablishthemultiplesupervisionsubject,andtomakeuptheregulatoryloopholes.
简介:
简介:15-1189号,2017年3月21日庭辩,2017年5月30日判决.美国专利法赋予专利权人'排除他人在美国境内制造、使用、许诺销售、销售其发明或将其发明进口到美国境内的权利'①的权利.未经专利权人许可从事上述行为之一的,应承担专利侵权责任.然而,当专利权人将商品出售之后,便不能再通过专利法对其出售的商品进行控制——因为该商品的专利权已经'穷竭'.
简介:让S是包含一刺x的Riemann表面。让是S上的简单关上的geodesics的收集,并且让表示在S上在对身份同位素的S上印射班的集合{x}。关于曲线c由tc表示积极Dehn扭曲。在这份报纸,作者学习形式的产品(tbmtn)fk一,b和f。如果,看见那是容易的=b或一,b是S上的刺穿x的柱体的边界部件,那么,一个人可以发现一个元素f以便顺序(tbmtn一)fk无穷地包含Dehn扭曲的许多力量。作者证明converse陈述仍然保持真,也就是说如果顺序(tbmtn)fk无穷地包含Dehn扭曲的许多力量,那么一,b一定是S上的刺穿x的柱体的边界部件,f是旋转地图tb的力量1t一。
简介:Zincwasrecentlysuggestedtobeapotentialcandidatematerialfordegradablecoronaryarterystent.Thecorrosionbehaviorofpurezincexposedtor-SBFupto336hwasinvestigatedbyelectrochemicalmeasurementsandimmersiontests.Themorphologyandchemicalcompositesofthecorrosionproductswereinvestigatedbyscanningelectronmicroscope,grazing-incidenceX-raydiffraction,X-rayphotoelectronspectroscopyandFouriertransforminfraredspectrometer.Theresultsdemonstratethattheinitialcorrosionproductsonthepurezincmainlyconsistofzincoxide/hydroxideandzinc/calciumphosphatecompounds.ThepureZnencountersuniformcorrosionwithanestimatedcorrosionrateof0.02-0.07mmy^-1duringtheimmersion,whichsuggeststhesuitabilityofpureZnforbiomedicalapplications.