简介：TNT的数字模拟在水下爆炸与AUTODYN被执行软件。模拟结果上的人工的粘性和网孔密度的影响被讨论。在炸药的爆炸波浪和水里的冲击波在爆炸的早时间期间是高频率波浪。好网孔(不到1，公里)在炸药和水附近、小的线性粘性系数和二次的粘性系数(0.02和0.1分别地，缺省值的1/10)在数字模拟模型被需要。根据这些规则，数字计算压力侧面能匹配很好，那些由Zamyshlyayev实验公式计算了。不同山峰压力将被涂离开，在上游的相对错误将下游地被堆积使下游的山峰压力更低。

简介：Supernovaexplosionisapeculiarastronomicalphenomenon,whichhasarousedgreatinterestandextensiveresearchbyastronomers.Atpresent,however,itiserroneouslybelievedthatthesupernovaexplosionisasplendidfuneralofadyingstar.Infact,newastronomicalobservationsandtheauthor’stheoreticalstudieshaveshownthatintheprocessofastar’snever-endingevolution,numeroussupernovaexplosionsmayoccur,andsupernovaexplosionwillrunthroughmanystagesofstellarevolution.Whenevertheatmosphereofthestarbecomesverydenseanditssurfaceiscoveredwithathicklayerofmaterialagain,athermonuclearreactioncanbeignitedagain,causingasupernovaexplosion.Especially,whenthestarhasundergoneanumberofsupernovaeexplosionsanditssurfaceiscoveredwithmultiplelayersofsupernovaexplosionremnants,thecoreofthemassivestarmayundergosuddengravitationalcollapse,causingaviolentsupernova;whenastarisimpactedbyafallingcelestialbody,italsoproducesviolentsupernovaexplosions.

简介：-Thisarticlebriefshowtoimprovetheholdingpowerofadrillingvessel’sanchorandtoremovethoseunreasonablestructuresbysuchatechnology-underwater-explosiontechnology.Thearticlegivesdetailsofthestructure,characteristicsandapplicationsofarocket-launchedanchor;aswellastheprinciple,properties,applicationsofdirectionalexplosioncutting.

简介：随城市里的国内煤气的消费和在中国的镇的增加，煤气的爆炸事故相当经常发生了，并且许多结构极大地被损坏。合理物理设计能保护结构免受被破坏的伤害，但是爆炸负担的字符一定由建立一个正确机械模型模仿发泄的煤气的爆炸第一是有学问的。爆炸过程向化学工业设备的安全被学习许多年了。这些研究的关键问题通常是方程包含了必须被试验性的数据评估的一些可调节的参数，并且计算的过程是极其复杂的，因此这些研究的可靠性严重被限制。把研究基于这些，一个简单数学模型被使用发泄方程的精力保存，集体保存，煤气的州的方程，绝热压缩方程和气体在这篇论文建立。爆炸负担必须被考虑房间布局估计；压力上升的率然后被使用一个骚乱因素改正，因此压力时间曲线能被获得。由使用这个方法，复杂计算被避免，当试验性、计算的结果相当适合很好时。一个典型矩形的房间里的一些压力时间曲线被计算在爆炸压力上调查不同点火地点，煤气的厚度，集中，房间尺寸和发泄的区域的影响。结果显示了那：当在这个房间的几何学中心被点燃时，它是最危险的条件；更大燃烧速度，更坏的发泄效果；越大发泄的压力，越higher山峰压力；越大发泄的区域，越多降低山峰压力。

简介：Planechargeexplosiontechnique(PCET)isoneofthemajortechniquesfrequentlyusedinlarge-scaleblast-resistantstructuretests.AnFEMmodelwasestablished,whichcansimulatetheprocessofairreleasingfromtheblastcavity.Theeffectsofthechargedensity,theintervalofthechargestrip,thedistanceofthechargesfromthestructure,andthemassofbackfillsoilontheoverpressuresappliedonthetestedstructureswereanalyzedbytheFEMmodel.Thequantitativerelationshipsbetweenthepeakvalueandthedurationoftheoverpressureandtheabove-mentionedaffectingparameterswereestablished.Agreementbetweennumericalresultsandthetestdatawasobtained.

简介：By"concealedexplosionofmagma",wemeantheexplosiveproessofmagmaundersubterraneanconcealedconditionswhichisessen-tiallysimilartovolcaniceruptionseenatthesurface;theonlydiffer-"nceisthatthelattertakesplaceinanopenenvironmentatthesurface’`vhiletheformertinasemi-openenvironmentbelowathincovernearlhesurfac

简介：Inselectingrationaltypesofundergroundstructuresresistingexplosion,inordertoimprovestressstatesofthestructuralsectionandmakefulluseofmaterialstrengthofeachpartofthesection,theresearchmethodofcompositestructuresispresented.Adoptingtheanalysismethodofmicro-sectionfreebody,equilibriumequations,constraintequationsanddeformationcoordinationequationsaregiven.MakinguseoftheconceptofgeneralizedworkanddirectlyintroducingLagrangemultiplierspecificinphysicalmeaning,thevalidityoftheconstructedgeneralizedfunctionalisprovedbyusingvariationmethod.Therationalrigiditymatchingrelationshipofcompositestructuresectionispresentedthroughexamplecalculations.

简介：Liquefactiontestingatasaturatedloesssitewasperformedunderthesimulatedearthquakegroundmotioninducedbyartificialexplosionswithmicro-timeintervals.Thetimehistoriesofgroundacceleration,porewaterpressureandtheultimatevalueofresidualstrainwererecordedandmeasured.ThemodifiedFEQdraincomputationsoftwarewasusedtoanalyzetheliquefaction.Boththetestandtheanalysisconfumtheobjectiveoccurrenceofloessliquefaction.Furthermore,thereliabilityofthemethodoftheloessliquefactionanalysisbasedonFEQdrainandthemodelofporewaterpressuredevelopmentofsaturatedloessareexamined.

简介：多保护是在安全管理的一个原则，并且反爆炸的使用和耐火的代理人是它的关键部分。在这份报纸，反爆炸的领域里的nano氧化物粒子的性质并且耐火被分析。纳米粒子的沉积速度是计算的。CH4作为一个例子被拿，并且它起始的阶段的燃烧机制被结束。反应系统的分子的精力上的15氧化物的效果与程序Hyperchem6被计算，并且在激进分子和氧化物之间的可能的接触方式被得到。氧化物例如ZrO2，能与激进分子结合，这被结束，并且因此阻止燃烧反应。nano-ZrO2暴发地产生了喷雾器，这被发现比在用作反爆炸和耐火的代理人的另外的对应物优异，因此，将在安全管理起一个日益重要的作用。

简介：Owingtotheexistenceoftheflowfieldboundary,theshockwaveloadneartheboundaryisdifferentfromthefreefieldshockwaveload.Inthepresentpaper,thehullplateloadsubjectedtounderwatershockwaveisinvestigatedbasedonwavemotiontheories;inaddition,theexperimentalstudyofthehullplateloadiscarriedout.Accordingtothetheoreticalanalysisofthehullplatepressure,wefindthatthehullplatepressureoscillatesrepeatedlyanddecaysrapidlywithtimepassing,themaximumhullplatepressureis2/（1＋n）timesthemaximumfreefieldpressure,wherenistheratioofimpedance,andtheimpulseismuchsmallerthanthefreefieldimpulse.Comparedwiththeexperimentalstudy,thetheoreticalresultsagreewellwiththeexperimentaldata.

简介：Theprinciplesandfeaturesofthepressure-liquidometerusingopticalfibersensor,whichissuitabletouseindangerousareas,aredescribed.Theinstrumentiseapeciallysuitableforautomaticdetectingofpressureandliquidlevelindangerousaslargesacleoiltanker,caveoiltanker,civicliquid-gastankerandsoon.

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简介：Theoretical–computationalstudiesoftable-toplaser-drivennuclearfusionofhigh-energy(upto15MeV)deuteronswith7Li,6Li,andDnucleidemonstratetheattainmentofhighfusionyieldswithinasource–targetreactiondesign.ThisconstitutesasourceofCoulomb-explodingdeuteriumnanodropletsdrivenbyanultraintensefemtosecondnear-infraredlaserandasolidhollowcylindricaltargetcontainingthesecondelement.Thesource–targetreactiondesignattainsthehighesttable-topfusionefficiencies(upto4×109J1perlaserpulse)obtainedtodate.Thehighestconversionefficiencyoflaserenergytonuclearenergy(102–103)fortable-topDDfusionattainedinthesource–targetdesigniscomparabletothatforDTfusioncurrentlyaccomplishedfor‘bigscience’inertialfusionsetups.

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简介：Objective:Laser-inducedCoulombexplosionofgoldnanoparticlesforbreastcancerhasbeenstudiedbynanophotolysistechnique.Thisstudyaimedtoinvestigatewhetherlaser-inducedbubbleformationduetoCoulombexplosioncanprovideaneffectiveapproachforselectivedamageofbreastcancerwithgoldnanoparticles.Method:Numericalmethodinvolveslaser-inducedCoulombexplosionofgoldnanoparticles.Differentparametersrelatedtonanophotolysissuchaslaserfluence,tumordepth,clusterradius,laserpulseduration,andbubbleformationisstudiednumerically.NumericalsimulationwasperformedusingMatlab.Results:Thegoldnanoparticlesof10,20,30,40,and50nminradiuscouldpenetrateintotumor1.14,1.155,1.189,1.20and1.22cmindepthrespectively.Themaximumpenetrationdepthintumorcouldbeobtainedwithnanoparticlesof50nmradius.Shortlaserpulseof40nswithnanoparticlesof10nmradiuscouldpenetrateintotumor1.14cmindepth.Bubbleswitharadiusof9μmcouldeffectivelykillbreastcancercellswithoutdamaginghealthyones.Thebubbleradiusincreasedfrom4to9μmwithanincreaseinpulsedurationintherangeof10to30ns.Conclusions:Goldnanoparticleswithincreasingradiusandbubbleformationforselectivedamageofbreastcancercellsaresuccessfullyprobed.Thepresentcalculatedresultsarecomparedwithotherexperimentalfindings,andgoodcorrelationisfoundbetweenthepresentworkandpreviousexperimentalvalues.Itwasdemonstratedthatbubbleformationintumormayfurtherincreasetheefficacyofbreastcancertreatment.

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简介：在这份报纸，我们首先学习部分Brownian运动与non-Lipschitz系数驾驶的随机的微分方程的答案的存在和唯一。然后，我们在部分Browmian运动与小散开多于一半关于林中小丘参数驾驶的随机的微分方程调查爆炸时间。

简介：Itisawellknownfactthatmagnaticcryoto-explosion,asaspeeialformofmagmatismunderthenear-surfacecondition,hasacloseconncctionwithcdogcnicmctaldcposits,particularlywiththoseofporphyrytyPe,suchaSporphyryCu-Mo,Pb-Zn,W-SnandUdcposits’However,onlyinrcccntyearsbavetheChineseoregeologistsandpetrologistsgivenin

简介：ExplosionforthetreatmentofunderwatersoftfoundationisatechniquenewlydevelopedinChina.ThispaperdescribestheapplicationofthemethodofexplosiontounderwatersoftfoundationtreatmentoftheGreat-WestDyke,LianyungangPort,includingthetechnicalcharacteristicsandtheeffect,selectionofexplosionparameters,workmanshipofconstruction,requirementsofqualityandinspection,andthelike.