简介：正企业为了维持生产设备的安全正常运行,缩短设备故障延时,最大可能地降低设备故障造成的停机损失,一般通过增加设备备件的储备品种和数量,容易造成设备备件超量储备,大量占用库存资金,给企业带来很大的资金负担。为保证生产维修的正常进行,控制设备备件的自备数量,降低库存资金占用,提高备件的周转率,物资管理部门通过运用联合库存的手段,充分利用各联合方的库存资

简介：6月25日，由交通运输部海事局统一组织，环渤海的山东、河北、天津、辽宁海事力量全面参与的联合巡航执法行动在山东海域开展。4艘海事执法船和交通运输部北海第一救助飞行阳架直升机参与巡航。

简介：Strongrestrictionsonemissionsfrommarinepowerplants(particularlySOx,NOx)willprobablybeadoptedinthenearfuture.Inthispaper,acombinedsolidoxidefuelcell(SOFC)andsteamturbinefuelledbynaturalgasisproposedasanattractiveoptiontolimittheenvironmentalimpactofthemarinesector.TheanalyzedvariantofthecombinedcycleincludesaSOFCoperatedwithnaturalgasfuelandasteamturbinewithasingle-pressurewasteheatboiler.ThecalculationswereperformedfortwotypesoftubularandplanarSOFCs,eachwithanoutputpowerof18MW.Thispaperincludesadetailedenergyanalysisofthecombinedsystem.Massandenergybalancesareperformednotonlyforthewholeplantbutalsoforeachcomponentinordertoevaluatethethermalefficiencyofthecombinedcycle.Inaddition,theeffectsofusingnaturalgasasafuelonthefuelcellvoltageandperformanceareinvestigated.Ithasbeenfoundthatahighoverallefficiencyapproaching60%maybeachievedwithanoptimumconfigurationusingtheSOFCsystem.Thehybridsystemwouldalsoreduceemissions,fuelconsumption,andimprovethetotalsystemefficiency.