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简介：因为不想重头制造轮子，所以会从设计模式中寻求协助一学习了解、甚或组合创造他人的经验与实际的精华。

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简介：IamreallygladthatMrsBiantakeschargeofourclassasheadteacheragain.WhenIwasinsecondgrade,MrsBiantoldusthatthereweregoingtobeanelectionofstudent’spresident.MrsBianencouragedus,'Don’tbeafraidofthat.Youcandoitaslongasyoutrustyourself.'Idecidedto

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简介：近日，美国生物学家在深海发现了一种奇怪的鱼，它长着透明的脑袋和管状的眼睛，被形象地称为管眼鱼。

简介：Asateenagerin1972,BillGatesoncesaidthathewouldbeamillionairebythetimehewas20.Only15yearslaterhewasabillionaire.Andby1992,asheadoftheMicrosoftcompany,hebecametherichestmaninAmericawithassets(资产)ofaboutUS$6.3billion.

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简介：AwaveofChinesefootballersareheadingtooverseasclubsinthewakeofChina'ssecuring(获得)aplaceinthe2002WorldCupfinalsaftersixstraightfailedbids.

简介：Thesphericalheadmodelhasbeenwidelyusedinmagnetoencephalography(MEG)asasimpleforwardmodelforcalculatingtheexternalmagneticfieldproducingbyneuralcurrentsinahumanbrain.Butthismodelmayleadtoaninaccurateresult,evenifthecomputationspeedisfast.Formoreprecisecomputation,realisticbrain-shapedheadmodelisusedwiththeboundaryelementmethod(BME),butatgreatlyincreasedcomputationalcost.WhensolvingMEGinverseproblembyusingoptimizationmethods,theforwardproblemmustoftenbesolvedforthousandsofpossiblesourceconfigurations.Soifthebrain-shapedheadmodelisusedinalliterativestepsofoptimization,itmaybecomputationallyinfeasibleforpracticalapplication.Inthispaper,wepresentamethodaboutusingcompoundheadmodelinMEGinversesolution.Inthismethod,firstsphericalheadmodelisusedforaroughestimation,thenbrain-shapedheadmodelisadoptedformoreprecisesolution.Numericalsimulationindicatesthatundertheconditionofsameaccuracy,thecomputationspeedforthepresentmethodisaboutthreetimesfasterthanamethodusingthebrain-shapedheadmodelatalliterations.

简介：十二月作为一年中的最后一个月份，对大部分的人来说通常更多的是回忆这一年中的点点滴滴；同时，也是我们展望新一年的重要契机。让我们在一面回忆，一面展望中走过2009年。不论我们做了什么、做得怎样，在即将到来的新一年里，让我们一切从“头”开始。

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简介：Accordingtothe"InternationalStandardofChineseHeadAcupoints"207patientssufferingfromstrokeweretreatedbyneedlingalongtheanteriorandposteriorobliguelinesofvertex-temporal,andtheline1andline2lateraltovertex.Themarkedlyeffectiverateaccountedfor73.43%ofthetotal,andtheoveralleffectiveraterepresented89.86%.Afterthetreatmentsomesymptomsashemiplegia,lingualdysfunction,facialandtongueparalysiswereobviouslyimproved(P<0.01).ThetherapeuticeffectofheadacupuncturewasobviouslybetterthanthatofWesternmedicine(P<0.01).Comparisonoftherapeuticeffectsmadeamongneedlingalongdifferentlinesandbetweenthoseappliedontheintactandaffectedsidesofthebodyshowedthattheywerealleffectiveinimprovingthesymptoms,buttherewasnosignificantdifference(P<0.05)

简介：Location:Thelinefromthemiddlepointofeyebrowsuptotheanteriorhairline.Manipulation:Thechildliesonhisbackandthepractitionerstandsinfrontofthechild'shead.Fixtheheadwithtwohands,andkneadfromthemiddlepointofeyebrowsuptotheanteriorhairlinewithalternatebellyofhands(Fie.1）.

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简介：ＭｏｄｅｌＨｅａｄｏｆａＦａｍｉｌｙＰｌａｎｎｉｎｇ＂ＣｅｎｔｒａｌＨｏｕｓｅｈｏｌｄ＂ＭｏｄｅｌＨｅａｄｏｆａＦａｍｉｌｙＰｌａｎｎｉｎｇ＂ＣｅｎｔｒａｌＨｏｕｓｅｈｏｌｄ＂Ｍｒｓ．ＬｉＦｕｈｕａｉｓａｎｏｒｄｉｎａｒｙｒｕｒａｌｗｏｍｅｎｆａｒｍ...

简介：AIM:Toassesstherepeatabilityofmeasuringopticnervehead(ONH)parametersusingtheCirrusopticalcoherencetomography(OCT),aswellastoassesstheeffectofheadtiltonthesemeasurements.METHODS:Thirtyhealthyparticipantswithnoevidenceofglaucomawererecruitedforthestudy.Visualacuity,intraocularpressure,standardautomatedperimetryandocularexaminationwereperformedforeachparticipant.OneeyewasthenrandomlyselectedandscannedundilatedwiththeCirrusOCTin3positions(neutral,30°righttiltand30°lefttilt).RESULTS:Datacollectedfrom29eyeswereusedforanalysis.Onepatientwasomittedduetopoorscanquality.TherepeatabilityoftheONHparameterswasanalyzedusinganalysisofvariance,coefficientofvariation(COV)andintraclasscorrelationcoefficient(ICC).Analysisofvarianceshowednostatisticallysignificantdifferencebetween3scansinasingleposition.Therewasgoodagreementbetweenmeasurements(ICC0.919-0.996,COV1.94%-5.48%).Evenwiththepresenceofheadtilt,repeatedscansinthe3positionsshowedgoodagreementaswell(ICC0.888-0.996,COV2.04%-5.39%).CONCLUSION:SerialmeasurementsofONHparametersusingtheCirrusOCTarefoundtohavegoodrepeatability.TheONHparameterswithCirrusOCTalsomaintaingoodrepeatabilitydespiteheadtilt.

简介：为分析头相关的转移功能(HRTF)的空间对称的方法被建议。HRTF的对称上的解剖结构的影响用在KEMAR人体模型和人的题目上测量的HRTF被调查。结果为KEMAR人体模型显示出那，pinnae破坏在5～6kHz上面的HRTF的前面背对称，当因为耳朵的地点，为人的题目频率把kHz归结为2.5时。而且在低、中部的频率，HRTF是近似左右的对称。当当频率增加，好解剖leftright差别引起的不对称现象出现时。开始的频率和在HRTF的左右的不对称现象的程度依靠个人。分析表明当前的有两耳的模型在是有效的HRTF和频率范围的空间对称的特征。