2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、THEINFLUENCEoFINoRGANICSAIJSoNTHEREFRACTIoNINDEXoFⅥ,ATERADissertationSubmittedtotheGraduateSchoolofHenanNormalUniversityinPartialFulfillmentoftheRequirementsfortheDegreeofMasterofEngineeringScienceByZhaoXinyiSupervisor:P

2、rofPengYufengMay2015ABSTRACTInthelastcentury,sincethelaserappears,itiswidelyusedinmachinerymanufacturing,measuringrange,holographicimages,medicalequipment,opticalcommunicationundertheseawaterenvironmentalmonitoringinthes

3、eaandotherfields,whichitstransmissionrateisfast,strongantijammingcapability,gooddirectivitystrongbrightness,theadvantagesofgoodmonochromaticityTheseaisarelativelytransparentmedium,seawatercompositionisquitecomplex,contai

4、ningsolubleorganicmattersuspendedsolids,thematerialsuchasplanktonontheopticalpropertiesofthewaterhascertaininfluenceTherearemanykindsoftheopticalpropertiesofthewater,includingabsorption,scatteringandreflection,refraction

5、,etc,atthesametime,thesefeaturesisinfluencedbytheoutsideconditions,andmanyscholarsandexpertsathomeandabroadhasalsostudedtheopticalpropertiesofthewater,itisconcludedthatrefractiveindexofseawaterrelatedtomanyfactorsThecomp

6、ositionofthewaterisverycomplex,however,thatinseawateLmainlyofdissolvedsubstancesareinorganicsalt,suchasNaCl,MgS04,KCI,NaHC03andMgCl2andSOonBecauseoftheunevennessofthesea,whichmakestherefractiveindexofthewaterparticularly

7、seriousdifficultiesinthedetectionandstudyofunderwaterlasercommunicationsheavyTherefore,studythetherefractiveindexofthewaterhasaveryimportantsignificanceBasedonthemaincomponentsandopticalpropertiesoftheseawaterthispaperre

8、searchedtheeffectsofdifferentseawatersalinityontherefractiveindexofthewaterDissolvingofsubstanceinwatercontainNaCl,KCl,MgS04,MgCl2,NaHC03,etcBasedonthetheoryofthosepredecessors,wehaveconcludedtherefractiveindexoftheseawa

9、terBycomparingsomecommonmethodswhenstudyofunderwaterlaserattenuationcharacteristics:analysismethod,experimentmethodandMonte—Carlosimulationmethod,basedontheprincipleoflinkingtheorywithpractice,wechosetheexperimentalmetho

10、dThroughexperimentalplatform,compoundtheinorganic—saltsolutiontosimulatetheseawatermeasuredtheeffectofseawater’Sseasalt,thesalt’Sconcentration,thewavelengthoflaserandseawatertemperatureontherefractiveindexofthewaterTheme

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