简介:ThispapergivesthetheoremsconcerningthesummationoftrigonometricseriesWiththehelpofFouriertransforms.BymeansoftheknownresultsofFouriertransforms,manydifficultandcomplexproblemsofsummationoftrigonometricseriescanbesolved.Thismethodisacomparativelyunusualwaytofindthesummationoftrigonometricseries.andhasbeenusedtoestablishthecomprehensivetableofsummationoftrigonometricseries.Inthistable.10thousandseriesaregiven.andmostofthemarenew.
简介:Inthispaper,wefirstdiscussthemethodsofcomparingtwospecialabsolutelyconvergentsineseries,sinnxandsinnx.Westatethetheoremin.onedimensionalcaseasfollows;Theorem.Letbeconvergentserieswithnonnegativeterms.SupposeThenforallx∈[0,π]If,inaddition,then
简介:LetXbeaBanachspaceand{ej}j=1beasequenceinX.Theauthorshowse∞that{ej}∞j+1isabasicsequenceifandonlyif∑n∞=1rnαnjconvergesforeveryj>1ande∞-∞∞e∑∞n=1rn∑∞j=1αnjej=∑j=1(∑∞n=1rnαnj)jholdsforeverychoiceofscalarvariables{αnj}suchthat∑∞n=1αnjejconvergesforeachn>-1andanychoiceofscalarvariables{rn}suchthat∑∞n+1∑∞f=1rnαnjejconverges.Moreover,someapplicationsabouttheresultaregiven.
简介:Sponsoredby:ChineseAcademyofSciencesNationalNaturalScienceFoundationofChinaPublishedby:ScienceinChinaPressChairman:ZHOUGuangzhao(ZhouGuangZhao)Editor-in-Chief:SUNShuExecutiveEditors:CHENYongMAZongjinOUYANGZiyuanSUJilanSUNHonglieWANGPinxianZHOUXiuii
简介:AbstractObjective:Nasal vestibular furunculosis (NVF) is characterized by an acute localized infection of the hair follicle in the skin lining of the nasal vestibule. This study provides an up-to-date narrative analysis on NVF, its presentation, complications and management.Methods:A literature search was conducted electronically with no time constraints using "Nasal Vestibular Furuncolosis" or "NVF" through Medline, Cochrane Library and Web of Science, including MeSH terms with no language restrictions. Included were: Studies that described NVF's presentation and subsequent management and excluded were: Irrelevant studies that did not provide details about NVF's presentation or management, furthermore studies that alluded to Nasal vestibulitis without furunculosis were excluded. There were no limitations on time, up until the review was commenced in May 2020.Results:Seven articles complied with the inclusion criteria. All papers reviewed were from 2015 to 2020. Three out of 4 studies reported duration of symptomatic NVF between 3 and 4 days. The most common presentation of NVF was reported as erythema, swelling, tender over the nasal tip. The most frequent, successful management of NVF frequently included intranasal topical mupirocin and in some cases oral sodium fusidate. NVF was reported to clear within 7 days by 2 studies. There were no randomised studies exploring NVF or NVF management.Conclusion:Although a very common condition, much research is required to allude to the pathophysiology and management of NVF. Future studies should explore the reasons as to the resistance of topical antibiotics in some patients, the differing strains of staphylococcus aureus and their resulting complications, the reasons behind the familiar connection and the most effective management plan for NVF.
简介:Themultipolemomentmethodnotonlyconducestotheunderstandingofthedeformationofthespace-time,butalsoservesasaneffectivetooltoapproximatelysolvetheEinsteinfieldequationwith.However,theusualmultipolemomentsarerecursivelydeterminedbyasequenceofsymmetricandtrace-freetensors,whichisinconvenientforpracticalresolution.Inthispaper,wedevelopasimplifiedproceduretogeneratetheseriessolutionstothemetricofthestationaryvacuumwithaxisymmetry,andshowitsvalidity.Inordertounderstandthefreeparametersinthesolution,weproposetotaketheSchwarzschildmetricasastandardruler,andsomewell-knownexamplesareanalysedandcomparedwiththeseriessolutionsindetail.
简介:Inthispaper,thetheoremsconcerningthesummationofFourierserieswithparameteraregivenbyusingtheLaplacetransforms.BymeansoftheknownresultofLaplacetransforms,manynew,importantproblemsofsummationofFourierserieswithparameterinmechanicscanbesolved.
简介:烷基配糖物1并且芳基glycosides24stereospecifically高度从商业地可得到的开始的材料在46步上被综合。acetobromo的联合反应--有unprotectivedihydroxyaglycon的D葡萄糖面对钠氢氧化物面对银氧化物,或与芳香的aglycon生产了关键中介。仅仅配置glycosides在这个过程被形成。所有这些glycosides的合成第一次被报导。
简介:2月10日,佳能公司隆重推出全新的生产型打印设备CanonvarioPRINT135series系列,它的前身是在2012年1月上市的OcéVarioPrint?DPLine系列,该系列已经在中低容量专业级生产打印型设备,即打印速度在100~135ppm的黑白单页纸市场上取得了巨大成功。新系列产品更进一步强化了设计理念,并提供全新的后装订选购件和先进的功能,为客户提供更广阔的市场应用和解决方案。
简介:<正>CENTRALCHINAARCSERIESANDITSMETALLOGENYJiangZhenya(HubeiInstituteofGeoscience,Wuhan,430022,Hubei,P.R.China)arc,metailogeny,CentralChinaThecentralChinaarcseriesliesacrossthewholecentralChina,embodyingQinghuaiarc,Esuarc,Changjiangarc,Chuzhearc,andXianggangarc.Itisagigantictecton-icarcseries.TheseriesistheresultofnorthandsouththrustingofhorizontaldiferrentialbucklingundertheuniversalnorthandsouthcompressingineasternChina.ItbeganatYingzhimovement,formedatthefirststageofYanshanmovement,andsolidifiedatthesceondstageofYanshanmovement.Theseriescontrollssedimentation,exogenicdeposits,magmatism,andendogenicdeposits.Menawhileitaffectsmordentopography,alluvialsystem,andclimate.