学科分类
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2 个结果
  • 简介:Intheair-waterquantumkeydistribution(QKD),theirregularseasurfacehassomeinfluenceonthephotonpolariza-tionstate.Thewindisconsideredasthemainfactorcausingtheirregularity,sothemodelofirregularseasurfacebasedonthewindspeedisadopted.Therelationshipsofthequantumbiterrorratewiththewindspeedandtheinitialincidentanglearesimulated.Therefore,themaximumsecuretransmissiondepthofQKDisconfirmed,andthelimita-tionofthewindspeedandtheinitialincidentangleisdetermined.Thesimulationresultsshowthatwhenthewindspeedandtheinitialincidentangleincrease,theperformanceofQKDwillfalldown.Undertheintercept-resendattackcondition,themaximumsafetransmissiondepthofQKDisupto105m.Torealizesafecommunicationsinthesafedivingdepthofsubmarines(100m),theinitialincidentangleisrequestedtobenotexceeding26~,andwiththeinitialincidentan~leincreased,thelimitationofwindspeedisdecreased.

  • 标签: IRREGULAR sea surface quantum key distri-aution
  • 简介:Demandresponse(DR)isgainingmoreandmoreimportanceinthearchitectureofpowersystemsinacontextofflexibleloadsandhighshareofintermittentgeneration.ChangesinelectricitymarketsregulationinseveralcountrieshaverecentlyenabledaneffectiveintegrationofDRmechanismsinpowersystems.Throughitsflexiblecomponents(pumps,tanks),drinkingwatersystemsaresuitablecandidatesforenergy-efficientDRmechanisms.However,thesesystemsareoftenmanagedindependentlyofpowersystemoperationforbotheconomicandoperationalreasons.Indeed,asufficientlevelofeconomicviabilityandwaterdemandsriskmanagementarenecessaryforwaterutilitiestointegratetheirflexibilitiestopowersystemoperation.Inthispaper,weproposedamathematicalmodelforoptimizingpumpschedulesinwatersystemswhiletradingDRblocsinaspotpowermarketduringpeaktimes.Uncertaintiesaboutwaterdemandswereconsideredinthemathematicalmodelallowingtoproposepowerreductionscoveringthepotentialriskofreal-timewaterdemandforecastinginaccuracy.NumericalresultswerediscussedonarealwatersysteminFrance,demonstratingbotheconomicandecologicalbenefits.

  • 标签: DEMAND response (DR) DRINKING water systems