国际学术会议发言

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1、国际学术会议发言第一篇：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.prologuethan

2、kyou,mr.chairman,foryourgraciousintroduction.iamhonoredtohavethechancetoaddressyouonthisspecialoccasion.thetopicofmypaperis“transactioncostandfarmers’choiceofagriculturalproductsselling”.theoutlineofmytalkasfolloplehouseholdchoicemodel.thethirdpartcoversthedatausedinthisresearch.andthen,piric

3、alresults.finally,asimpleconclusionisgiven.2.introductionoveonthefirstpartofthistopic.themotivationofthisicspositsthatagentsmakingdecisionsondifferenttypesoftransactionsdosoinacostlyple,farmersdecidingsellaparticularcroptobasetheirdecisionsnotonlyonthepricetheyexpecttoreceiveineachmarketchoic

4、ebutalsoonadditionalcostsrelatedtotransactinginthesemarkets.iple,givensomemarketchannels,farmers’choicescanberegardedasequilibriumbetarketandthetransactioncosthasbeenthehardconstrainttofarmers.furthermore,farmers’marketchoicescanbetakenasachoicedilemmaoftransactioncostandproductionsurplus.con

5、sequently,thescientificquestionofthisresearchishoethodologylet’smovetothetheoreticalmodelofourresearch.considerahouseholdmodelinonerotation.instage1,famerηneedstoallocatetheinputfactors.thisprocesscanqbesetintoafunctionlikethisq??q(p,eanstheoutputfarmersdecideqtoproduce.pimpliestheoutputprice

6、pliesinputpriceand.z:?isfixedinput.onceproduceanyaredecided,nextquestiontobeconsideredishouchproductstobetransactedinmarket.hereeanshouchagriculturalproductsusedbyfamersthemselves.pimpliesthepricethecagriculturalproduct,z?suggeststhefluctuationofcη.thesecondequationq??q??c?,qηmeanstheamountof

7、agriculturalproductstransactedinq?n?market.thethirdequationi?q?impliestheamountexchangedinnthtime.instage3,farmers.chanelj’smarketpriceisbdecidedbyanexogenesispriceandfarmers’negotiatingpoatrixtoshoers’choicecanbeexpressedinatypicalchoicemode