国际学术会议讲话(精选多篇)

国际学术会议发言(精选多篇)

第一篇：硒—国际学术会议

以单一元素作为议题而举行的国际研讨会，硒是最早的，也是唯一的一个，每五年举办一次，至今已召开八届。其中，第三届和第六届都在中国北京举办；2014年，第八届“硒在生物医药中的应用”国际会议在美国威斯康星大学隆重召开，纳米硒是本届硒全球大会来自中国的唯一参展商。由此可见硒对人体健康的重要性。

硒在人体中的作用是广谱的。迄今为止，已知人类有490余种疾病与缺硒有直接关系。人们把硒称为“明星营养素”、“抗癌之王”等等，国际上发表的硒的生物医学研究科学论文已经超过一万篇，是其他微量元素所不能比拟的。

第二篇：国际学术会议发言稿

1.prologue

thankyou,mr.chairman,foryourgraciousintroduction.iamhonor edtohavethechancetoaddressyouonthisspecialoccasion.thetopicof mypaperis“transactioncostandfarmers’choiceofagriculturalpro ductsselling”.theoutlineofmytalkas follows.thefirstpartiwantt ointroducethebackgroundofthisresearch.thesecondpartsuggestsas implehouseholdchoicemodel.thethirdpartcoversthedatausedinthis

research.andthen,weintroducetheempiricalresults.finally,asimp leconclusionisgiven.

2.introduction

well,let’sm oveonthefirstpartofthistopic.themotivationoft hisworklikethis.institutionaleconomicspositsthatagentsmakingd ecisionsondifferenttypesoftransactionsdosoinacostlyway.forexa mple,farmersdecidingsellaparticularcroptowhombasetheirdecisio nsnotonlyonthepricetheyexpecttoreceiveineachmarketchoicebutal soonadditionalcostsrelatedtotransactinginthesemarkets.

iwanttouseapicturetoillustrateit.forexample,givensomemark etchannels,farmers’choicescanberegardedasequilibriumbetweent hesurplusandtheadditionalcoststhatrelatedtotransacting.especi allyindevelopingcountries,high-valuecropproducersfullyparticipateinthemarketandthetransactio ncosthasbeenthehardconstrainttofarmers.furthermore,farmers’m arketchoicescanbetakenasachoicedilemmaoftransactioncostandpro ductionsurplus.consequently,thescientificquestionofthisresear chishowtransactioncostaffectsplanters’choices.

3.methodology

let’smovetothetheoreticalmodelofourresearch.considerahou seholdmodelinonerotation.instage1,famerηneedstoallocatethein putfactors.thisprocesscanqbesetintoafunctionlikethisq??q(p,w, z?),qηmeanstheoutputfarmersdecideqtoproduce.pimpliestheoutpu tpricewimpliesinputpriceand.z:?isfixedinput.onceproducewhatan dproducehowmanyaredecided,nextquestiontobeconsideredishowmuch productstobetransactedinmarket.hereweusethreecccηmeanshowfun ctionstodescribethisquestion.thefirstequation,c??p,z?

muchagriculturalproductsusedbyfamersthemselves.pimpliesth epricethecagriculturalproduct,z?suggeststhefluctuationofcη.t hesecondequationq??q??c?,qηmeanstheamountofagriculturalprodu ctstransactedin

q?n?market.thethirdequationi?q?impliestheamountexchangedi nnthtime.

instage3,farmerswilldecidetoselltheproductstowhom.chanelj ’smarketpriceis

bdecidedbyanexogenesispriceandfarmers’negotiatingpower.p ij?p*

j?b(qi,zi)besidesthis,weuseamatrixtoshowthenetprofitofcha neljxik?ik,???ik?