国际会议发言稿.docx
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国际会议发言稿
国际会议发言稿
第一篇:
国际学术会议发言稿
1.prologue
thankyou,mr.chairman,foryourgraciousintroduction.iamhonoredtohavethechancetoaddressyouonthisspecialoccasion.thetopicofmypaperis“transactioncostandfarmers’choiceofagriculturalproductsselling”.theoutlineofmytalkasfollows.thefirstpartiwanttointroducethebackgroundofthisresearch.thesecondpartsuggestsasimplehouseholdchoicemodel.thethirdpartcoversthedatausedinthisresearch.andthen,weintroducetheempiricalresults.finally,asimpleconclusionisgiven.
2.introduction
well,let’smoveonthefirstpartofthistopic.themotivationofthisworklikethis.institutionaleconomicspositsthatagentsmakingdecisionsondifferenttypesoftransactionsdosoinacostlyway.forexample,farmersdecidingsellaparticularcroptowhombasetheirdecisionsnotonlyonthepricetheyexpecttoreceiveineachmarketchoicebutalsoonadditionalcostsrelatedtotransactinginthesemarkets.
iwanttouseapicturetoillustrateit.forexample,givensomemarketchannels,farmers’choicescanberegardedasequilibriumbetweenthesurplusandtheadditionalcoststhatrelatedtotransacting.especiallyindevelopingcountries,high-valuecropproducersfullyparticipateinthemarketandthetransactioncosthasbeenthehardconstrainttofarmers.furthermore,farmers’marketchoicescanbetakenasachoicedilemmaoftransactioncostandproductionsurplus.consequently,thescientificquestionofthisresearchishowtransactioncostaffectsplanters’choices.
3.methodology
let’smovetothetheoreticalmodelofourresearch.considerahouseholdmodelinonerotation.instage1,famerηneedstoallocatetheinputfactors.thisprocesscanqbesetintoafunctionlikethisq?
?
q,qηmeanstheoutputfarmersdecideqtoproduce.pimpliestheoutputpricewimpliesinputpriceand.z:
?
isfixedinput.onceproducewhatandproducehowmanyaredecided,nextquestiontobeconsideredishowmuchproductstobetransactedinmarket.hereweusethreecccηmeanshowfunctionstodescribethisquestion.thefirstequation,c?
?
p,z?
muchagriculturalproductsusedbyfamersthemselves.pimpliesthepricethecagriculturalproduct,z?
suggeststhefluctuationofcη.thesecondequationq?
?
q?
?
c?
qηmeanstheamountofagriculturalproductstransactedin
q?
n?
market.thethirdequationi?
q?
impliestheamountexchangedinnthtime.
instage3,farmerswilldecidetoselltheproductstowhom.chanelj’smarketpriceis
bdecidedbyanexogenesispriceandfarmers’negotiatingpower.pij?
p*
j?
bbesidesthis,weuseamatrixtoshowthenetprofitofchaneljxik?
ik,?
?
?
ik?
andthenfarmers’choicecanbeexpressedinatypicalchoicemodel
exppr?
1exp?
k?
1
basedonthechoicemodel,anotherimportantconceptisfamers’channelchoice.here,wesetfivetypes.theyrankbythemarketbarriers.accordingly,wesetagroupdiscretenumbertoexpressthem.y:
dependentvariabley=5,meansfarmerchoose
brokers.y=1,farmerssellproductstoconsumersdirectly.
4.dataandestimationprocedures
here,weillustratethedatadistributionwiththismap.accordingtotheagriculturalregionalizationfromdepartmentofagriculture,theapplespecializationareasinchinacontaintwoparts:
boseaareaandloessplateau.boseaareainredcolor,containshebei,shandongandliaoning3provinces.andloessplateauingreencolor,containsshanxi,henan,shaanxiandgansu4provinces.firstly,weuseppsmethodtogetthefirststagesamplingunit14countiesin7provinces.thenuserandomsamplemethodtogetvillageandhousehold.theyareoursampledistribution.
5.empiricalresults
6.conclusions
第二篇:
国际会议
国际会议:
20XX2ndinternationalconferenceonenvironmentscienceandengineering
postby:
20XX-7-2419:
09:
28
20XX2ndinternationalconferenceonenvironmentscienceandengineering
may.26,20XXnews!
theicese20XXpapersareavailableinthevol.8ofipcbee.
mar.16,20XXnews!
theconferenceprogramoficese20XXisavailablenow.
welxxetotheofficialwebsiteofthe20XX2ndinternationalconferenceonenvironmentscienceandedduringapril7-820XX,inbangkok,thailand.icese20XX,aimstobringtogetherresearchers,scientists,ehepracticalchallengesencounteredandthesolutionsadopted.
changeandsharetheirexperiences,newideas,andresearchresultsaboutallaspectsofenvironmentscie
theconferencewillbeheldeveryyeartomakeitanidealplatformforpeopletoshareviewsandexpsensorsandrelatedareas.icese20XXwillbepublishedinonevolumeofipcbee,andallpaperswillbeydigitallibrary,andindexedbythomsonisi.
callforpapers
20XX2ndinternationalconferenceonenvironmentscienceandengineering,icese20XXisthepremierforumforesearchresultsinthefieldsoftheoretical,experimental,andappliedenvironmentscienceandengineering.theconfereers,engineersandscientistsinthedomainofinterestfromaroundtheworld.topicsofinterestforsubmissioninclude,
environmentalscienceandtechnology
environmentaldynamics
meteorology
hydrology
geophysics
atmosphericphysics
physicaloceanography
globalenvironmentalchangeandecosystemsmanagement
climateandclimaticchanges
globalwarming
ozonelayerdepletion
carboncaptureandstorage
biofuels
integratedecosystemsmanagement
satelliteapplicationsintheenvironment
environmentalrestorationandecologicalengineering
habitatreconstruction
biodiversityconservation
deforestation
wetlands
landscapedegradationandrestoration
groundwaterremediation
soildecontamination
eco-technology
bio-engineering
environmentalsustainability
resourcemanagement
lifecycleanalysis
environmentalsystemsapproach
renewablesourcesofenergy-energysavings
cleantechnologies
sustainablecities
healthandtheenvironment
healthrelatedorganisms
hazardoussubstancesanddetectiontechniques
biodegradationofhazardoussubstances
toxicityassessmentandepidemiologicalstudies
qualityguidelines,environmentalregulationandmonitoring
indoorairpollution
waterresourcesandriverbasinmanagement
regulatorypractice,waterqualityobjectivesstandardsetting,waterqualityclassificationpublicparticipation
economicinstruments
modelinganddecisionsupporttools
institutionaldevelopment
transboundarycooperation
managementandregulationofpointanddiffusepollution
monitoringandanalysisofenvironmentalcontaminant
groundwatermanagement
wastewaterandsludgetreatment
nutrientsremoval
suspendedandfixedfilmbiologicalprocesses
anaerobictreatment
processmodelling
sludgetreatmentandreuse
fateofhazardoussubstances
industrialwastewatertreatment
advancesinbiological,physicalandchemicalprocesses
onsiteandsmallscalesystems
storm-watermanagement
airpollutionandcontrol
emissionsources
atmosphericmodelingandnumericalprediction
interactionbetweenpollutants
controltechnologies
airemissiontrading
solidwastemanagement
wasteminimization
optimizationofcollectionsystems
recyclingandreuse
wastevalorization
technicalaspectsoftreatmentanddisposalmethodsleachatetreatment
legal,economicandmanagerialaspectsofsolidwastemanagement
managementofhazardoussolidwaste
watertreatmentandreclamation
disinfectionanddisinfectionby-products
managementofwatertreatmentresiduals
aestheticqualityofdrinkingwater
effectofdistributionsystemsonpotablewaterquality
reuseofreclaimedwaters
dexedbythomsonisi.
importantdateadvancedtreatmentofwaterandsecondaryeffluentsicese20XXwillbepublishedinonevolumeofipcbee,andallpaperswillbeincludedinengineering
papersubmissionbeforedecember10,20XXnotificationofacceptanceonjanuary1,20XXfinalpapersubmissionbeforejanuary15,20XXauthors'registrationbeforejanuary15,20XXicese20XXconferencedatesapril7-8,20XX
submissionmethods:
1.electronicsubmissionsystem;
ifyoucan'tloginthesubmissionsystem,pleasetrytosubmitthroughmethod2.
2.email:
icese@cbees.org
第三篇:
国际会议
invitationletter
dearprofessorli,
onbehalfofthepekinguniversityandtheieeexxputersociety,iwouldbeverypleasedtoinviteyoutoattendandchairasessionoftheforthxxing20XXinternationalconferenceonparalleldataprocessingtobeheldinbeijing,frommarch25tomarch28,20XX.
youareaninternationallyacclaimedscholarandeducator.yourparticipationwillbeamongthehighlightsoftheconference.
wesincerelyhopethatyoucouldacceptourinvitation.ifyoucanxxe,pleaseletusknowassoonaspossible,sincewehavetopreparethefinalprogramsoon.wearelookingforwardtoyouracceptance.
sincerelyyours,
wangyang
replyletter
dearprofessorwang,
manythanksforyourletterdated15thfebruary,invitingmetoattendandchairasessionoftheforthxxing20XXinternationalconferenceonparalleldataprocessingtobeheldinbeijing,frommarch25tomarch28,20XX.
muchtomyregret,ishallnotbeabletohonortheinvitationbecauseihavebeensufferingfromadiseasesincethissummer.iamfirmlyadvisedthatitwouldbeunwisetoundertakeanydistantandlongtravelinthenearfuture.
ifeelverysadtomisstheopportunityofmeetingyouandmanyothersinthefieldofxxputerscience.iwishtheconferenceaxxpletesuccess.sincerelyyours,
liming
inquiryletter
dearsir,
thanksyouverymuchforacceptingourinvitation.iamwritingtoaskforinformati