简介：Mechanicalcharacterizationofsteelframestructureafterfireareanalyzedbasedonfiredynamics,heattransfertheory,structuralmechanics,andfiniteelementtheory.Westudythetemperaturecharacteristicsandmechanicalpropertiesofsteelframestructureunderdifferentfirelocationsandproposeasafetyevaluationmethod.Wealsoanalyzedamagelevelofmainframecomponents,maximumtemperatureoffire,thermalcharacteristicsofframecomponents,firingduration,etc.toprovideusefulinformationforfireresistancedesignofthesteelframestructureandpost-disastersafetyevaluation.

简介：WithrapideconomicandsocialdevelopmentinChina,high-risebuildingshavecontinuouslysprungupsince2006.However,severalbigfireaccidentsinhigh-risebuildingssuchastheBeijingTelevisionCulturalCenterfirein2009andtheShanghaiJing’anDistrictfirein2010etc.haveclaimedpeople’slivesandcausedhugeamountsofeconomicandpropertylosses,thusresultingingreatsocialresponse.Thiscircumstancehascausedgraveconcernfromthepublicand

简介：火的相互作用骑车，植物硬币的繁殖特征能决定一处风景的植被分发模式。在加拿大的北方的区域，火在小冰川期前骑车(c。1850年代)以后从30-130年和25-234年直到解决时期(c。1930年代)什么时候更长发射周期，响应气候变迁和人的干扰发生了。分析显示火周期与生长期(4月10月)被相关从1961-1990正常的温度和降水离开，由区域变化。假设野火将在过去的世纪，用气候变迁情形CGCM1的一个评价，CGCM2和HadCM2期间对类似于方式的温暖的未来作出回应显示周期将在西方泰加森林盾转移到80-140年的一个范围的火，为北方的盾和东方泰加森林防护的东方的超过700年，和为在2050的北方的平原的300-400年。

简介：APoissonregressionmodelandanegativebinomialregressionmodel(NBmodel)areoftenusedinareassuchasmedicineandeconomy,butrarelyinthedomesticforestrysector,especiallyintheforestfireforecasting.BasedonthedataofforestfireoccurrencesinDaxing’anlingregionin1980-2005,thispaperprofoundlyanalyzestheapplicationconditionsandtestmethodsofthetwomodels.TheAICmethodwasusedtocheckthefittinglevelofthemodelsandthecapabilityofthemodelsforforecastingforestfireswasdiscussed.ThisstudyprovidednecessarytheoreticalbasisanddatasupportfortheapplicationofthetwomodelsinthefieldofforestryinChina.

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简介：英语中有一些NationalSlurs(民族侮慢语)，Chinesefiredrill就是其中一例。AmericanSpeech(Dec．1962)中对Chinesefiredrill的解释是：“anaccidentsceneofgreatconfusion，suchasaschool-busorcattle—truckupset．”(十分混乱的事故场面，比如象校车或牲口车翻车时的场面。)

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简介：Afiniteelementisestablishedforanalyzingthedynamicalmechanicsanddeformationofsteelframeathightemperaturewhenitisrapidlycooleddownbyspraywaterinfirefighting.Thesimulationresultshowsthatremarkablemechanicalcouplingeffectsareproducedintheprocess,andthesectionalstressinrapidcoolingdownisfoundconsiderablylargerthanthatinheating-up.Meanwhile,thestressanddeformationofabeammainlyrelatedtocoolingrateandlocationaremuchlargerthanthoseofacolumninrapidcooling.Infirefighting,thestructureonthefirstorsecondfloorwasmoredangerousthanthoseonotherfloorsinrapidcooling.Theseresultscouldprovideatheoreticalreferenceforthedesignofsteelstructureandfirefighting.

简介：准备，是一种系统一种工程当世界以一种新的表述来铺陈时几乎是在瞬间挑战与机遇的闸门同时打开我们应该珍惜时代

简介：游戏的规则，对游戏者来说都是承担权利与义务的公平尺度你要加入游戏竞赛就必须强健起自己的心理与肌体因为你既是群体又是个体

简介：Identificationofforestfire_pointsinNOAAimagesisthebasisofmonitoringforestfireusingNOAAsatellitedata.Traditionalvisualinterpretationisdifficulttosettleforauto_identificationwithcomputer.Theartificialneuralnetworktechniqueprovidesanewmeansforsolvingthisproblem.Inthispaper,theprinciplesandmethodofusingneuralnetworktechniquetoautomaticallyidentifyfire_pointsinNOAAimagesarediscussedandthetestintherangeofHubeiprovinceispresented.Theresultofthetestshowsthatthedisciplinedneuralnetworkhascollectedthecharacteroffire_pointsandhasabilitytoidentifyfire_pointsinNOAAimages.Comparingneuralnetworkwithvisualinterpretation,theconclusionisdrawnthatbyusingneuralnetworkthepurposeofauto_identificationofforestfire_pointsinNOAAimagescanberealizedwiththealmostsameprecision.

简介：ThispaperfocussesontheinformationasymmetryincrisisnewsafteraseriousincidentinTianjin,China,in2015.Theincidentcausedenormousdamageandresultedinsocietalunrestbecauseofthelackofreliableinformationfromtheformalmediachannels.Socialmedia—microblogs—playedamajorroleinreportingoncrisissituations.Wedividednetizens(i.e.,thecitizensofthenet)intohighandlowtypesaccordingtotheirinformation-criticalleveltothecrisisnews.Thedatashowsinformationdeteriorationonthecrisisnews,relatedtothenetizens’information-criticallevel.Forthetraditionalmediathereistheopportunitytouseinformationqualitydistortiontomakemoremarginalprofits.Thisispossibleonlyifthecitizens’informationstaysunderacertainqualitylevel.Theresultisoverprovisionoflowqualitynewsandhighqualitynewsdrivenoutofthemarket,whereuponadverseselection(i.e.,alackofsymmetricinformation)appears.However,byadoptingaprocessview,wefoundself-correctingmechanism(i.e.,dyingoutofrumors)ofthesocialmediacommunitiesinChina.Weprovidedaagent-basemodelandsimulationtoshowthatthemoremediaexistinthemarket,thefasterspeedoftheinformationdeterioration,butalsothecapacityto‘discuss’rumors.

简介：InthispaperthemeteorologicalbackgroundfortheformationofplumefromtheforestfireinNortheastChinaon7—8May1987isstated.Thelong-rangeinstantaneousdiffusionparametersarecalculatedbyusingthesatellitephotographoftheplumeswithvisiblelengthrangingfrom100toover500kin.Theresultsofcal-culationshowthattherelationsbetweeninstantaneousdiffusionparameterandtraveltime(upto60000sec.)obeythelawoflinearor3/2power.Inaddition,heatreleasefromthefireonMay7—8estimatedbypuffrisingformulacanmeet,inrespecttotheorderofmagnitude,thevaluegainedonthefieldsurvey.

简介：有理由自信处于经济并入世界之轨的历史性变革崭新的一切都将翘首以待改革与发展注入的强劲动力推动我们和世界各民族一起进取赛跑彼岸就是此岸

简介：Microbialcommunityfunctionaldiversityisasensitiveindicatorofsoil.Forestfirescanchangemicrobialcommunityfunctionaldiversity.Inthisresearch,thefiredsoilsampleswerecollectedfromHuzhongofDaxing’anlinginHeilongjiangProvince.ThefunctionaldiversityofsoilmicrobialcommunitywasdetectedbyBIOLOGsystem.Theaveragewellcolordevelopment(AWCD)inBIOLOGplatesindicatedtheabilityofcarbonsubstrateutilizationofmicrobialcommunity.TheindicesofShannon,SimpsonandMcintoshwerecalculatedtoshowtherichness,dominanceandevennessofthefunctionaldiversity,andtheprincipalcomponentanalysisofsubstratereactionsreflectedthemaincarbonsourcesutilizedbymicrobialcommunity.TheresultsshowedthatallthesamplesexhibitedthereductionofAWCDduringthefirst144hoursofincubation,buttherewereobviousdifferencesinthereductiondegreeamongthesamples.Allkindsoffireintensitiescouldinfluencemicrobialcommunityfunctionaldiversity.Thelowfireintensityincreasedtherichness(Shannon),dominance(Simpson)andevenness(Mcintosh)ofmicrobialcommunity.However,theintermediateandhighfireintensityreducedtheseparameters,suggestingthattheburnedsoilemittedgaseousnitrogen,anumberoforganiccarbonandavailablephosphorus,whichcausedthereductionofthemicroorganisminquantityandtype,andchangeinsoilingredients.Theorganicmaterialreducedintheburnedsoil,inthesametime,thepHvaluesrose,whichchangedenvironmentinwhichmicroorganismlives.Thechangedenvironmentmightnotbeconducivetoactivitiesofthemicroorganism.Theprincipalcomponentanalysisshowedthatthemaincarbonsourcesforsoilmicrobeswerecarbohydratesandaminoacidsandthecarbonsubstrateutilizationpatternsindifferentsamplesweresignificantdifferent.Theresultsindicatedthatfunctionaldiversityofsoilmicrobeswerealteredbyforestfires,andtheabilityofmicrobestoutilizecarbonsourceandthetypeofcarbonsourceswereaffectedbydif

简介：Objective:Toobservetheclinicaleffectof‘settingfireonthemountain’manipulationbyLuShou-yanforcervicalradiculopathyaswellastheinfraredthermographicchangesofthecervicalareabeforeandaftertreatment.Methods:Atotalof120eligiblecaseswithcervicalradiculopathywererandomlyallocatedintoanobservationgroupandacontrolgroup,60ineachgroup.CasesintheobservationgroupweretreatedwithLuShou-yan’s‘settingfireonthemountain’manipulation,whereascasesinthecontrolgroupweretreatedwithevenreinforcing-reducingmanipulation.Aftertwocoursesoftreatment,theinfraredthermographicchangesandoveralltherapeuticefficaciesinthetwogroupswerecompared.Results:Therecoveryrateandtotaleffectiverateintheobservationgroupwere68.3%and98.3%respectively,versus28.3%and81.7%inthecontrolgroup,showingstatisticaldifferencesinrecoveryrateandtotaleffectiverate(bothP<0.01).Therewasbetween-groupstatisticalsignificanceincomparingtheinfraredthermographyaftertreatment(P<0.01).Conclusion:‘Settingfireonthemountain’manipulationbyLuShou-yanisbetterthanevenreinforcing-reducingmanipulationforcervicalradiculopathy.

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简介：Prescribedfireisacommoneconomicalandeffectiveforestrypractice,andthereforeitisimportanttounderstandtheeffectsoffireonsoilpropertiesforbettersoilmanagement.Weinvestigatedtheimpactsoflow-intensityprescribedfireonthemicrobialandchemicalpropertiesofthetopsoilinaHungarianoak(QuercusfrainettoTen.)forest.Theresearchfocusedonmicrobialsoilparameters(microbialsoilrespiration(RSM),soilmicrobialbiomasscarbon(Cmic)andmetabolicquotient(qCO2)andchemicaltopsoilproperties(soilacidity(pH),electricalconductivity(EC),carbon(C),nitrogen(N),C/Nratioandexchangeablecations).Meanannualcomparisonsshowsignificantdifferencesinfourparameters(C/Nratio,soilpH,CmicandqCO2)whilemonthlycomparisonsdonotrevealanysignificantdifferences.SoilpHincreasedslightlyintheburnedplotsandhadasignificantlypositivecorrelationwithexchangeablecationsMg,Ca,MnandK.ThemeanannualC/Nratiowassignificantlyhigherintheburnedplots(28.5:1)thaninthecontrolplots(27.0:1).ThemeanannualCmic(0.6mgg-1)wassignificantlyloweralthoughqCO2(2.5lgCO2–CmgCmich-1)wassignificantlyhigher,likelyresultingfromthemicrobialresponsetofire-inducedenvironmentalstress.Low-intensityprescribedfirecausedveryshort-livedchanges.TheannualmeanvaluesofC/Nratio,pH,CmicandqCO2showedsignificantdifferences.

简介：在所有Android平板厂商想着如何在死板的圈子里如何画的更圆的时候．亚马逊则跳出来画了一个有棱有角的方块．这个“方块”就是——KindleFireHDX89。