简介:DaveGerr美国知名游艇设计师、美国西草游艇设计学院(全世界最老的游艇设计学院)主管。先后在纽约大学和普瑞特艺术学院(PrattInstitute)学习物理学和工业设讥最终凭借着在西草游艇设计学院完威的游艇设计课程成为了一名专业游艇设计师。1983年在纽约成立了自己的设计公司GerrMarine.Inc,著有多本游艇设计相关书籍(《螺旋桨工具书》/PropellerHandbook、《游艇强度的元素》/TheElementsofBoatStrength、《游艇本性》/TheNatureofBoats等),并且为多本游艇杂志撰稿。
简介:TheobjectiveofthisresearchwastoexamineifcertainstrainsofBacillusbacteria,couldsurviveindrypowderproductsandifso,couldthebacteriadegradeorganiccontaminantsinsalinewastewateronaship.Aspartofthestudy,weisolated7domesticatedstrainsnamedNY1,NY2,…,andNY7,thestrainNY6showedtohavethebestperformancefororganicmatterdegradationandcouldsurviveindrypowdermorethan3months.NY6wasidentifiedasBacillusaerius,basedonthemorphologicalandphysic-chemicalproperties.Itsoptimalgrowthconditionswereasfollows:salinitywas2%;temperaturewas37℃;pHwasin6.5-7.0;bestratioofC:N:Pwas100:5:1.ThecapabilityofitsdrypowderforChemicalOxygenDemand(COD)removalwas800mgCOD/ginsynthesizedmarinewastewaterwith2%salinity.Thesporesinthedrypowderwere1.972×108g-1.