简介：MicrostructureandsubmicrostructureofLeydigcellandSertolicellinthetestisofgonadalprecocityandimmaturationinculturedlargeyellowcroaker,Pseudosciaenacrocea,arestudiedusinghistologyandelectronmicroscopictechnique.Theresultsindicatethatthefinestructureofthetwokindsofcellsindifferentdevelopmentstagespresentsanobviousdifference.ThesmoothendoplasmicreticularandtubularmitochondriaofLeydigcellandSertolicellarewelldevelopedinthetestisofgonadalprecocity,butpoorlydevelopedinthetestisofimmaturation.WesuggestthatthereasonforgonadalprecocityinthelargeyellowcroakermayberelatedtotheearlierdevelopmentandmaturationofLeydigcellandSertolicell.

简介：床负担的数量是在沉积运输研究的一个重要物理参数。在床负担测量瞄准困难，这篇论文开发一个装底部的监视器由采用沉积坑方法并且解决象称和desilting的如此的关键问题测量床负担运输率，它能完成长期，平凡的河，河口和海岸的床负担运输率的全天候、即时的telemeasurement。实验室和这个监视器是合理的在的领域测试表演设计，在性质稳定、方便在里面测量，和它能被用来在实际工程监视床负担运输率。

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简介：ByimplementingtheARGOprogram,alargenumberofT-Sprofilescanbeobservedintheworldocean.However,itisverydifficulttoexaminechangesofthesensitivityofthesensorsequippedattheARGOfloats,becauseitisdifficulttounderstandtheirconditionintheseaandthereliabilityofthedata.Qualitycontrolmustbedoneinordertoavoidthewrongconclusiondeducedfromthewrongdata.OneoftherealisticmethodsforqualitycontroloftheARGOdataisthecomparisonwiththelocalclimatology.HighqualityclimatologicalT-SmodelsinnorthwestPacifichavebeenbuiltbasedontheNansenbottledataandCTDdataforthequalitycontrolinNMDIS.ThemodelsareusedtochecktheARGOdatainthisareaandhavegotgoodresult.