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简介：讨论用8098单片机，在理论上满足一定精度的前提下，对欠稳定信号完成其频率测试的最优方法，并进行了误差分析和测试范围讨论。

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

简介：为了提高运动训练科学化水平的需要，我们结合微电子技术和计算机技术，研制出智能化8098-Ⅰ型人体重心稳定性监测仪。经国家射箭队和广东省射箭队等单位的试用表明，该仪＄具有设计合理、一技术先进、自动化程度高、操作简便、实用性强等特点，非常适合于对射击、射箭等项目运动员的技术功作进行科学监测和诊断，亦可为运动员身心疲劳程度的评定提供科学的依据。

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.

简介：Ｃｈｉｎａ＇ｓＡｎｔｉ－ＪａｐａｎｅｓｅＷａｒＷＯＲＬＤＷＡＲⅡ，ｗｈｉｃｈｅｎｄｅｄｈａｌｆａｃｅｎｔｕｒｙａｇｏｉｎａｃｒｕｓｈｉｎｇｄｅｆｅａｔｆｏｒｔｈｅｆａｓｃｉｓｔｐｏｗｅｒｓ，ｗａｓａｌｉｆｅ－ａｎｄ－ｄｅａｔｈｓｔｒｕｇｇｌｅｂｅｔｗ...

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简介：ThecentralgovernmentwillallocateRMB470millionforAIDSpreventionandcontrol,saidViceHealthMinisterWangLongdetoaJnnepressconferenceheldbytheStateCouncilInformationOffice.

简介：Anti-globalizationtrendsareinplayintheUSandWesternEuropewhereelectoratesarerecalcitranttoallowimmigrantsintotheirsocieties,nationalsovereigntyissoughtincertaingeographicareas,andthenationalmoodseekstosuppressnewlyrisingcountries'tradeanddevelopment.ThecontinuationofeconomicdownturninWesterncountriesisreinforcedbytheirinternalwealthgapandexternalcompetition.Ascapitalism'sdemandforprofitisnowbeingcritiquedalongwiththeemergentprofitprospectstobedeliveredbypendingtechnologicalprogress,thetemperofthetimescouldtemporarilyslowdownbutnotreverseglobalization.Timelydiscussionsaboutreformofinternationaleconomicorderandaboutaneffectivenationaldevelopmentmodelshouldseeksustainablesolutionsforhealthy,stableglobalizationanddevelopmentoftheworldeconomy.

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简介：Therearefewstudiesontheneuroprotectiveeffectsofsyringaldehydeinaratmodelofcerebralischemia.Thestudyaimedtoelucidatethemechanismsunderlyingtheneuroprotectiveeffectsofsyringaldehydeonischemicbraincells.Ratmodelsofcerebralischemiawereintraperitoneallyadministeredsyringaldehyde.At6and24hoursaftersyringaldehydeadministration,celldamageinthebrainofcerebralischemiaratswasobviouslyreduced,superoxidedismutaseactivityandnuclearrespiratoryfactor1expressioninthebraintissueweremarkedlyincreased,malondiadehydelevelwasobviouslydecreased,apoptosis-relatedcysteinepeptidasecaspase-3and-9immunoreactivitywasobviouslydecreased,andneurologicalfunctionwasmarkedlyimproved.Thesefindingssuggestthatsyringaldehydeexertsneuroprotectiveeffectsoncerebralischemiainjurythroughanti-oxidationandanti-apoptosis.

简介：8098单片机是准16位嵌人式微控制器,与MCS—51系列单片相比,具有功能全,运行速度快等优点.另外目前采用8098为CPU的STD总线模块已被广泛应用,这就是为开发应用提供了良好的条件。本文介绍一种对蓄电池定时放电进行动控制、检测的试验系统,整个系统采用8098单片

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