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简介：Notopterygiumincisum(QH)hasbeenusedforthetreatmentofrheumatoidarthritis(RA),andvolatileoilsmaybeitsmainlybioactiveconstituents.ThepresentstudywasdesignedtoanalyzethevolatilecompoundsinQHandtodeterminetheanti-arthriticcapacityofNotopterygiumvolatileoilsandthepotentialmechanismofaction.ThevolatilecompoundsanalysiswasconductedbyGC-MS.Theanti-arthriticcapacitytestofthevolatileoilswasconductedonadjuvant-inducedarthritis(AIA)rats.Theanti-inflammatorypropertywastestedinNOreleasemodelinRAW264.7cells.Endothelialcellswereusedtoevaluatetheanti-proliferativeandanti-tubeformativeeffects.70compoundswereanalyzedbyGC-MSinthevolatileoils.NotopterygiumvolatileoilsweakenedtheratAIAinadose-dependentmanner(2,4,and8gcrudedrug/kg).TheNOproductionbyRAW264.7wasdecreasedbymorethan50%inNotopterygiumvolatileoils(5,15,and45μg·mL-1)pretreatedgroups.NotopterygiumvolatileoilsalsoinhibitedEAhy926cellproliferationandfurtherdelayedEAhy926cellcapillarytubeformationinaconcentration-dependentmanner.Theanti-NOproductive,anti-proliferative,andanti-tubeformativeeffectsofNotopterygiumvolatileoilsstronglysuggestedthatthetherapeuticeffectofQHinAIAmightberelatedtothepotentanti-inflammatoryandanti-angiogeniccapacitiesofthevolatileoils.

简介：ＲａｎｄｏｍｆｉｅｌｄｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｅａｒｔｈｑｕａｋｅｏｃｃｕｒｒｅｎｃｅａｎｄｔｅｓｔｏｆｅａｒｔｈｑｕａｋｅｏｃｃｕｒｒｅｎｃｅｒａｔｅＭｅｎｇ－ＴａｎＧＡＯ（高孟潭）（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｐｈｙｓｉｃｓ，Ｓｔａｔｅ...

简介：Carbon-containingrefiactoriesareeasilyoxidizedathightenperature,thusmakingserviceliferapidlydrop.Theanti-oxidationmethods,suchasimpregnationandaddinganti-oxidatonagents,can'tmeettherequire-mentsofindustry'sdevelopmentandsomespecialcases,Byanalyzingthecharcteristicsofseveraloxidesandnon-oxidesrawmaerials,theoxidationresistantmechanismoftherefractoryanti-oxidationcoatings(RAOC),whichpossessthecharacteristcofself-healingathighttemperature,isdiscussed.

简介：Canearthquakesbepredicted?Howshouldpeopleovercomethedifficultiesencounteredinthestudyofearthquakeprediction?Thisissuecantakeinspirationfromtheexperiencesofweatherforecast.Althoughweatherforecastingtookaperiodofabouthalfacenturytoadvancefromempiricaltonumericalforecast,ithasachievedsignificantsuccess.AconsensushasbeenreachedamongtheChineseseismologicalcommunitythatearthquakepredictionmustalsodevelopfromempiricalforecastingtophysicalprediction.However,itisseldommentionedthatphysicalpredictionischaracterizedbyquantitativelynumericalpredictionsbasedonphysicallaws.Thisarticlediscussesfivekeycomponentsfornumericalearthquakepredictionandtheircurrentstatus.Weconcludethatnumericalearthquakepredictionshouldnowbeputontheplanningagendaanditsroadmapdesigned,seismicstationsshouldbedeployedandobservationsmadeaccordingtotheneedsofnumericalprediction,andtheoreticalresearchshouldbecarriedout.

简介：ThedevelopmentofearthquakeengineeringinChinaisdescribedintothreestages.Theinitialstagein1950's-1960'swasmarkedwiththeinitiationofthisbranchofsciencefromitscreationinthefirstnational12-yearplanofscienceandtechnologybyspecifyingearthquakeengineeringasabranchitemandIEMwasoneparticipant.Thefirstearthquakezonationmapandthefirstseismicdesigncodeweresooncompletedandusedinengineeringdesign.Siteeffectonstructuraldesignandsiteselectionwereseriouslystudied.ThesecondstagemarkedwiththeoccurrenceofquiteafewstrongearthquakesinChina,fromwhichmanylessonswerelearnedandcorrespondingconsiderationswerespecifiedinourdesigncodesandfollowedinconstructionpractice.Thethirdstageisastageofdisastermanagement,whichismarkedbyaseriesofgovernmentdocumentations,leadingbyanationallawofthePeople'sRepublicofChinaontheprotectingagainstandmitigatingearthquakedisastersadoptedatthemeetingoftheStandingCommitteeoftheNationalPeople'sCongressofthePeople'sRepublicofChinain1997,andthenfollowedbysomeprovincialandmunicipallawstoforcetheactionsoutlinedinthenationallaw.Itmaybeexpectedthatoursocietywillbemuchmoresafertoresisttheattackoffuturestrongearthquakeswithlesslosses.Lastly,possiblefuturedevelopmentsarealsodiscussed.

简介：同学们，今年的俄罗斯世界杯，你们看了吗？你们是哪支球队的忠实fans呢？进球的那一刻，你们是不是也放声欢呼了呢？来自墨西哥的小球迷Alisa看到自己国家的球队赢得比赛，也兴奋得不得了呢！

简介：Thesystemofgeophysicalshells(lithosphere,atmosphere,ionosphere)isconsideredasanopencomplexnonlinearsystemwithdissipationwhereearthquakepreparationcouldberegardedasaself-organizingprocessleadingtothecriticalstateofthesystem.Theprocessesinatmosphereandionosphereareconsideredfromthepointofviewofnon-equilibriumthermodynamics.Theintensiveionizationofboundarylayerofatmosphere(probablyprovidedbyradoninoccasionofearthquakepreparation)givesstarttothesynergeticsequenceofcouplingprocesseswheretheionosphereandevenmagnetospherearethelastlinksinthechainofinteractions.Everyanomalyobservedindifferentgeophysicalfields(surfacetemperature,latentheatflux,electromagneticemissions,variationsinionosphere,particleprecipitation,etc.)isnotconsideredasanindividualprocessbutthepartoftheself-organizingprocess,thefinalgoalofwhichisthereachingofthepointofthemaximumentropy.RadonanomalybeforetheKobeearthquakeisconsideredasaperfectexampletosatisfytheformalseismologicaldeterminationoftheearthquakeprecursor.Whatisgeneticallyconnectedwithradonthroughtheionizationprocesscanalsoberegardedasaprecursor.Theproblemofco-seismicvariationsofthediscussedparametersofatmosphereandionosphereisconsideredaswell.

简介：Earthquakeengineeringresearchanddevelopmenthavereceivedmuchattentionsincethefirsthalfofthetwentiethcentury.Thisvaluableresearchpresentedahugestepforwardinunderstandingearthquakehazardmitigation,whichresultedinappreciablereductionoftheeffectsofpastearthquakes.Nevertheless,the2011Tohokuearthquakeandthesubsequenttsunamiresultedinmajordamage.Thispaperpresentsthetimelineofearthquakemitigationandrecovery,asseenbytheauthors.Possibleresearchdirectionswheretheauthorsthinkthatmanyopenquestionsstillremainareidentified.Theseareprimarilybasedontheimportantlessonslearnedfromthe2011Tohokuearthquake.

简介：在Yangjiang的大约400地震的地点，广东省被决定用两倍，差别地震地点算法(DDA)。seismicity模式变得从分离格子专注。Yangjiang地震顺序表演的破裂特征在NW和NE方向的结合的分布。有30的一个角度和一段201on的有30的一个角度和一段30km的主要分发趋势NE和剧降NE，和次要的分发趋势NW和剧降SE。焦点的深度是5km15km。Enping地震顺序的分发，离Yangjiang不远，是趋势NW。在hypocenter分发和地质的结构之间的关系被讨论。

简介：ByusingthegeneralizedPoincaréindextheoremitisprovedthatifthen^2criticalpointsofann-polynomialsystemformaconfigurationoftype(2n-1)-(2n-3)+(2n-5)-…+(-1)^n-1,andthe2n-1outmostanti-saddlesformtheverticesofaconvex(2n-1)-polygon,thenamongthese2n-1anti-saddlesatleastonemustbeanode.

简介：目的：分析耳郭刺激抗衰老的疗效，寻求一种简便、安全的抗衰老的保健方法。方法：综合分析耳郭刺激与抗衰老的文献报道，从衰老与耳的关系，耳郭抗衰老的刺激方法、临床应用及机理研究等方面进行探讨。结果与结论：耳郭刺激通常选用与五脏相对应的耳穴心、肝、脾、肺、肾及内分泌、皮质下。耳郭刺激，尤其是耳穴贴压和耳郭按摩法，是简便有效的无创伤性保健、治疗方法，应当在抗衰老中起更大作用。

简介：Thepresentstudywasdesignedtoexaminetheanti-hyperuricemicandanti-inflammatoryeffectsandpossiblemechanismsofvaticaffinol,aresveratroltetramerisolatedfromethanolextractsofDipterocarpusalatus,inoxonate-inducedhyperuricemicmice.At1hafter250mg·kg~(-1)potassiumoxonatewasgiven,vaticaffinolat20,40,and60mg·kg~(-1)wasintragastricallyadministeredtohyperuricemicmiceoncedailyforsevenconsecutivedays.Vaticaffinolsignificantlydecreasedserumuricacidlevelsandimprovedkidneyfunctioninhyperuricemicmice.Itinhibitedhepaticactivityofxanthinedehydrogenase(XDH)andxanthineoxidase(XOD),regulatedrenalmRNAandproteinlevelsofuratetransporter1(URAT1),glucosetransporter9(GLUT9),organicaniontransporter1(OAT1),organiccationtransporter1(OCT1),OCT2,organiccation/carnitinetransporter1(OCTN1),andOCTN2inhyperuricemicmice.Moreover,vaticaffinolmarkedlydown-regulatedrenalproteinlevelsofNOD-likereceptor3(NLRP3),apoptosis-associatedspeck-like(ASC),andCaspase-1,resultinginthereductionofinterleukin(IL)-1β,IL-18,IL-6andtumornecrosisfactor-α(TNF-α)levelsinthisanimalmodel.Additionally,HPLCandLC-MSanalysesclearlytestifiedthepresenceofvaticaffinolinthecrudeextract.Theseresultssuggestthatvaticaffinolmaybeusefulforthepreventionandtreatmentofhyperuricemiawithkidneyinflammation.

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简介：SubscriptionsEarthquakeEngineeringandEngineeringVibration(PrintISSN1671-3664,CN23-1496/Pwww.iem.net.cn/eeev)ispublishedbiannuallybytheChinaSciencePress.SubscriptionRatesVolume2,2005,2issues?80.00forinstitutionsand?60.00forindividualsformainlandofChina;andUS$80.00andUS$60.00(includingairmailpostage)forinsti-tutionsandindividuals,respectivelyforotherregions.

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简介：Thereare13papersinthisspecialissueonstressfield,crustaldeformationandseismicity.ThegreatWenchuanearthquakeisagrievousdisaster,butChinesescientistsaretryingtolearnmorefromtheeventinordertounderstandbetterthephysicsofearthquakesfor

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简介：Journalwebsite:http://www.springerlink.comAIMSANDSCOPEThisjournalisestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.Toaccomplishthispurpose,thejournalaimstoattractabalancednumberofpapersbetweenChineseand