简介：

简介：BasedonthetraditionalSmoothedParticleHydrodynamics(SPH)algorithm,thelinked-listsearchalgorithmcombinedwiththevariablesmoothinglengthandsquaresupportdomainwasputforwardtoimprovethecalculationefficiencyandguaranteethecalculationaccuracy.Thephysicalprocessofhighvelocityfragmentimpactonabroadsideliquidcabinwasprogrammedforsimulation.ThenumericalresultsagreedwellwiththoseofthegeneralsoftwareANSYSAUTODYN,whichverifiestheeffectivenessandfeasibilityofthenumericalmethod.Fromtheperspectiveoftheouterplatethicknessoftheliquidcabin,thewidthoftheliquidcabin,andincidentangleofthefragment,theinfluenceoftheseparametersonprotectivemechanismswasanalyzedtoprovideabasisforprotectivedesignofabroadsideliquidcabin.Resultsshowthattheinfluenceofouterplatethicknessisnotobvious;therefore,theconventionaldesigncanbeadoptedinthedesignoftheouterplate.Thewidthoftheliquidcabinhasagreatinfluenceontheresidualvelocityofthefragmentandthewidthoftheliquidcabinshouldbedesignedtobeaswideaspossibleunderthepremiseofmeetingotherrequirements.Thereisacertainincidentangleinwhichthevelocityattenuationofthefragmentismostobvious,andthehigh-pressurezoneneartheinnerplateisasymmetric.Theinnerplateofliquidcabinshouldbestrengthenedaccordingtothehullform,principaldimensions,andvulnerablepoints.

简介：国际干散货运价指数——BDI指数暴跌，干散货严寒难耐截至2014年12月28日，波罗的海干散货运价指数报收于784点（见图1），航运业“严寒”难耐。指数近一年中累计下降65．66％。从11月下旬以来，BDI快速回调，连续24个交易日下跌。

简介：当今学界，对皎然诗歌的研究是很薄弱而不系统的，文章从总结前人的点滴成果开始，着重从美学的角度来探讨诗僧皎然诗歌创造里“清”的运用及其诗学观，并对其释道圆融的诗学美学观作初步阐释。

简介：3月7日，威海南港海事处联合威海港集团在新港9泊油类作业码头开展船舶溢油清污应急联合演练。此次演习模拟“润丰油1”轮在靠泊9泊卸柴油时出现管路溢油入海，威海新港和中石油油库组成的专业抢护和清污队伍迅速开展抢护和清污工作，威海南港海事处接报后立即启动溢油应急预案，指派“海巡05907”赶赴现场监护，