简介:上海开林造漆厂建立于1915年,位于上海市西体育会路229号,是我国最早创办的油漆厂,现属化工部重点涂料生产厂之一.目前,上海开林造漆厂占地20787平方米,建筑面积18000平方米,全厂现有职工约700人,其中工程技术人员120人,并拥有一支具有一定技术水平和操作水平的工人队伍.开林造漆厂地处上海市东北部,交通便利,是虹口区主要的生产企业之一.建国以来,随着生产规模的扩大和产品品种的增多,开林造漆厂逐步形成了生产以“光明牌”船舶漆、重防腐蚀涂料及特种涂料、“长城牌”绝缘涂料为骨干系列产品的科研生产基地,年产量由建国初期的几百吨,逐渐发展到现在的1万多吨.
简介:OnMarch26,2010anunderwaterexplosion(UWE)ledtothesinkingoftheROKSCheonan.TheofficialMultinationalCivilian-MilitaryJointInvestigationGroup(MCMJIG)reportconcludedthatthecauseoftheunderwaterexplosionwasa250kgnetexplosiveweight(NEW)detonationatadepthof69mfromaDPRK'CHT-02D'torpedo.KimandGitterman(2012a)determinedtheNEWandseismicmagnitudeas136kgatadepthofapproximately8mand2.04,respectivelyusingbasichydrodynamicsbasedontheoreticalandexperimentalmethodsaswellasspectralanalysisandseismicmethods.ThepurposeofthisstudywastoclarifythecauseoftheUWEviamoredetailedmethodsusingbubbledynamicsandsimulationofpropellersaswellasforensicseismology.Regardingtheobservedbubblepulseperiodof0.990s,0.976sand1.030swerefoundincaseofa136NEWatadetonationdepthof8musingtheboundaryelementmethod(BEM)and3Dbubbleshapesimulationsderivedfora136kgNEWdetonationatadepthof8mapproximately5mportsidefromthehullcenterline.Hereweshowthroughanalyticalequations,modelsand3Dbubbleshapesimulationsthatthemostprobablecauseofthisunderwaterexplosionwasa136kgNEWdetonationatadepthof8mattributabletoaROKlittoral'landcontrol'mine(LCM).