简介：

简介：ThispapermakesabriefanalysisontheErrorAnalysis,anditishopedtobehelpfutotheEnglishteachers.

简介：Objective:Acommoncavitydeformity(CCD)isadeformedinnerearinwhichthecochleaandvestibuleareconfluentformingacommonrudimentarycysticcavitythatresultsinprofoundhearingloss.Therearefewstudiespayingattentiontocommoncavity.Ourgroupisengrossedinobservingtheimprovementofauditoryandverbalabilitiesinchildrenwhohavereceivedcochlearimplantation(CI),andcomparingthesetargetsbetweenchildrenwithcommoncavityandnormalinnerearstructure.Materialandmethods:Aretrospectivestudywasconductedin12patientswithprofoundhearinglossthatweredividedintoacommoncavitygroupandacontrolgroup,sixineachgroupmatchedinsex,ageandtimeofimplantation,basedoninnerearstructure.CategoriesofAuditoryPerformance(CAP)andspeechintelligibilityrating(SIR)scoresandaidedhearingthresholdswerecollectedandcomparedbetweenthetwogroups.AllpatientsworeCIformorethan1yearattheCochlearCenterofAnhuiMedicalUniversityfrom2011to2015.Results:PostoperativeCAPandSIRscoreswerehigherthanbeforeoperationinbothgroups(p<0.05),althoughthescoreswerelowerintheCCDgroupthaninthecontrolgroup(p<0.05).TheaidedthresholdwasalsolowerinthecontrolgroupthanintheCCDgroup(p<0.05).Conclusion:EventhoughaudiologicalimprovementinchildrenwithCCDwasnotasgoodasinthosewithoutCCD,CIprovidesbenefitsinauditoryperceptionandcommunicationskillsinthesechildren.

简介：Giventherisingtrendinobesityinchildrenandyouthandage-relateddeclineinmoderate-to-vigorous-intensityphysicalactivity(MVPA)inseveralWestern,African,andAsian-Pacificcountries~1andstrongevidencethatpastphysicalactivity(PA)interventionshavehadonlyasmalleffectonchildren’sandyouth’soverallactivitylevels,~2itisimportanttoclarifywhetherschool-basedPAinterventionswarrantresourceallocation.Schoolsrepresentanaccessibleandcost-effectivesetting

简介：

简介：

简介：Givenasetofsignals,aclassicalconstructionofanoptimaltruncatablebasisforoptimallyrepresentingthesignals,istheprincipalcomponentanalysis(PCAforshort)approach.Whentheinformationaboutthesignalsonewouldliketorepresentisamoregeneralproperty,likesmoothness,adifferentbasisshouldbeconsidered.OneexampleistheFourierbasiswhichisoptimalforrepresentationsmoothfunctionssampledonregulargrid.ItisderivedastheeigenfunctionsofthecirculantLaplacianoperator.Inthispaper,basedontheoptimalityoftheeigenfunctionsoftheLaplace-Beltramioperator(LBOforshort),theconstructionofPCAforgeometricstructuresisregularized.Byassumingsmoothnessofagivendata,onecouldexploittheintrinsicgeometricstructuretoregularizetheconstructionofabasisbywhichtheobserveddataisrepresented.TheLBOcanbedecomposedtoprovidearepresentationspaceoptimizedforbothinternalstructureandexternalobservations.Theproposedmodeltakesthebestfromboththeintrinsicandtheextrinsicstructuresofthedataandprovidesanoptimalsmoothrepresentationofshapesandforms.

简介：

简介：

简介：

简介：Theplenopticcameraisasinglelensstereocamerawhichcanretrievethedirectionoflightrayswhiledetectingtheirintensitydistribution.Inthispaper,torevealmoretruthsofplenopticcameraimaging,wepresentthewavefrontanalysisfortheplenopticcameraimagingfromtheangleofphysicalopticsbutnotfromtheraytracingmodelofgeometricoptics.Specifically,thewavefrontimagingmodelofaplenopticcameraisanalyzedandsimulatedbyscalardiffractiontheoryandthedepthestimationisredescribedbasedonphysicaloptics.Wesimulateasetofrawplenopticimagesofanobjectscene,therebyvalidatingtheanalysisandderivationsandthedifferencebetweentheimaginganalysismethodsbasedongeometricopticsandphysicalopticsarealsoshowninsimulations.

简介：

简介：

简介：我们在某些合理假设下面考虑有弹性的薄盘子的颤动。我们由哈密尔顿原则为这个模型导出非线性的方程。在为起始的数据的hyperbolicity上的条件下面，我们建立本地时间well-posedness为起始并且由Picard重复的边界值问题为解决方案策划，并且获得估计。

简介：UnlikeIndo-Europeanlanguages,Mandarinreliesheavilyonlexicaltonestodistinguishwordidentity.Usingtheintermodalpreferentiallookingparadigm,thisstudyexamined3-year-oldMandarinspeakers'abilitytouseMandarinlexicaltonesinlearningnewwords.ResultsshowedthatwhenchildrenwerepresentedwithTone2(rising)andTone4(falling)pairs,childrensuccessfullylearnedbothwords.However,whenchildrenwerepresentedwithTone2andTone3(dipping)pairs,theylearnedtheTone2wordbutnottheTone3one.ChildrenwerethendividedintotwogroupsbasedontheirlearningperformanceontheTone3word.SuccessfullearningofTone3wordswasobservedinthehighperformersbutnotinthelowperformers,whoconsistentlymisusedTone3asTone2.ThisstudyshowedthatMandarinspeaking3-year-oldscoulduselexicaltonestolearnwordsunderexperimentalconditions,andthatthedifficultyofTone3acquisitionmayberelatedtoitslowerlevelofperceptualdistinctivenesscomparedwithothertones.

简介：BackgroundDesigning在孩子和少年的年龄评价的一条简单、可存取的途径是运动和物理活动(PA)的领域里的大挑战。这研究被设计开发并且验证在代表性的研究在2014进行了的年轻children.MethodsIn估计年龄的一个physical-examination-based方法，我们执行了物理考试并且在上海在14,970小学孩子7-12岁之中估计了PA，中国。孩子们高度和出生日期的另外的生物信息通过他们的父母被查明。二指示物被使用开发一个性特定的年龄评价方程：预言的成熟高度(PPMH)和更黝黑的阶段的百分比。方程通过一条k褶层交叉验证途径被验证。到为评价精确性的支票，在估计的年龄(EA)和按年代先后的年龄和PA的差异之间的协会是EA的性特定的方程如下是的examined.ResultsThe：EA男孩=-6.071+6.559更黝黑的2+13.315更黝黑的3+14.130更黝黑的4+0.190PPMH-0.071更黝黑2

简介：Objective:Population-basedcancerregistrationdatawereusedtoanalyzetheepidemiologyandtrendofmalignantmesotheliomainChina,andtheresultwouldprovidebasicdataforitspreventionandcontrol.Methods:Malignantmesotheliomadatain2013wereretrievedfromthedatabaseofNationalCancerRegistry.Malignantmesotheliomaincidenceandmortalitywereestimatedusingage-specificratebyurban/ruralandgenderaccordingtothenationalpopulationin2013.Malignantmesotheliomadatafrom22cancerregistrieswereusedfortrendanalysisduring2000–2013.Results:Itisestimatedthattherewere2,041newmalignantmesotheliomacasesand1,659malignantmesotheliomadeathsoccurredin2013.ThecrudeincidencerateinChinawere1.50/106(males1.67/106,females1.32/106),age-standardizedincidenceratesbyChinesestandardpopulation(ASIRC)andbyworldstandardpopulation(ASIRW)were1.03/106and1.02/106,respectively.ThecrudemortalityrateinChinawas1.22/106(males1.67/106,females1.32/106),age-standardizedmortalityratesbyChinesestandardpopulation(ASMRC)andbyworldstandardpopulation(ASMRW)were0.83/106and0.81/106,respectively.TherewasanincreasingtrendofincidencerateformalignantmesotheliomainregistrationareasofChinaduring2000–2013withannualpercentagechange(APC)of2.5%[95%confidenceinterval(95%CI):0.6%–4.5%].Afteragestandardization,nosignificantdifferenceswereobserved.Nomatterforcrudemortalityratesorage-standardizedmortalityrates,nosignificantdifferenceswereobservedduring2000–2013.Conclusions:Malignantmesotheliomaisthemajoroccupationalandenvironmentalneoplasmassociatedwithasbestosexposure.Theincreasingincidencetrendsuggeststhatmoreattentionshouldbepaidonthisdisease.

简介：(1)RareearthpriceindexRareearthpriceindexincreasedatfirstbutfellduringtheendofDecember2016.Itgrewfrom115.3tothehighestof118.5andthenfellto116.8atthemonthend.(2)Yttrium-mediumandeuropium-richmineralListedpriceofyttrium-mediumandeuropium-richmineralsaveraged195,000yuan/toninNovember,maintainingflatsincethebeginningof2016.However,therealdealpricewasfarlowerthanthelistedone.

简介：Pricesofsomerareearthproductsbegantorisesincethebeginningof2017.ThethirdroundofnationalstockpilingendedonMarch28withbothquantityandpricehigherthanthesecondround.Thus,itsupportsthepricerisingofmostrareearthproducts.Especiallypriceofceriumoxideincreasedby10.10%month-on-month,leadingtherareearthmarket.

简介：Source:AssociationofChinaRareEarthIndustry1.RareearthmarketPricesofkeyrareearthproductsbegantopickupatthestartoftheyear.Overalllightrareearthoxidesprices,comparedwithayearago,grewduringthefirsthalfof2017.Mediumandheavyrareearthoxidesprices,however,weremixed.Pricesofdidymiumoxideanddidymiummetalincreasedlargely.