简介:Basedonthethermodynamictheory,anorthotropicdamageconstitutivemodelwasdevelopedtodescribethenonlinearmechanicalbehaviorofC/SiCcomposites.Thediferentnonlinearkinematicandisotropichardeningfunctionswereadoptedtodescribeaccuratelythedamageevolutionprocesses.Thedamagevariablesweredefinedwiththedamagedmodulusandtheinitialundamagedmodulusonenergyequivalenceprinciple.Theinitialorthotropyanddamagecouplingwerepresentedinthedamageyieldfunction.Tensileandin-planeshearloadingandunloadingtestswereperformed,andagoodagreementbetweenthemodelandtheexperimentalresultswasachieved.
简介:摘要目的分析C-反应蛋白(CRP)和白细胞(WBC)计数分类联合检测的临床意义。方法用乙二胺四乙酸二钾(EDTA-K2)抗凝静脉血,采用ABXPENTRA60型血细胞分析仪测定白细胞总数及分类,同时用奥林巴斯生化分析仪检测血清中的CRP。结果500例发热患者C-反应蛋白和白细胞计数分类联合检测结果提示,细菌感染325例,占65%,病毒感染85例,占17%;单纯白细胞计数分类结果提示感染205例,占41%。结论C-反应蛋白和白细胞计数分类联合检测有助于临床更好地鉴别感染类型,合理使用抗生素,CRP结果比白细胞计数更为敏感,检测CRP可以弥补白细胞计数分类的不足。
简介:Combinedwithpracticalcase,thepaperelaboratesthedevelopmentandapplicationsofmechanicaldrawing,mechanicaldesignandmanufacturingbasedonSolidworkssoftware.Bycombiningprofessionalcoursesbetweeneachother,theknowledgecontinuouslythroughdifferentcoursescanenhancestudents'enthusiasmforthecourseandmakemorereasonablearrangementforthecourses.
简介:ThenewWIODdatabaseallowsforimprovedempiricalanalysisonawiderangeofimportantenvironmentalresearchquestions.InthispaperwedemonstratethescientificpoweroftheWIODdatabaseandanalyzeveryurgentpolicyquestionsontheimpactsofinternationaltradeandstructuralchangeontheenvironment.Weapplyrecenteconometricapproachestoshowtheimpactofinternationaltradeontheenvironmentviaitsdifferentchannelsasforinstancetoincreasewelfareandpotentiallyaffectenvironmentalregulationaswellascountries’sector.Thisapproachhasbecomeknownastheeconometricstructuraldecompositionmethod.Inadditiontotheseguidelinesbytheliterature,aneconometricpaneldataapproachisofferedtoshedsomelightontheimpactofstructuralchangeandinternationaltradeonenvironmentalpressure,whereweespeciallyaddressandsolveseveralendogeneityissuesthataddfurthercomplexitytotheanalysis.
简介:Twodifferentpulsecleaningtechniquesforultra-highcontrastlasersystemsarecomparablyanalysedinthiswork.Thefirstpulsecleaningtechniqueisbasedonnoncollinearfemtosecondoptical-parametricamplification(NOPA)andsecond-harmonicgeneration(SHG)processes.Theotherisbasedoncross-polarizedwave(XPW)generation.Withadoublechirpedpulseamplifier(double-CPA)scheme,althoughtemporalcontrastenhancementinahigh-intensityfemtosecondTi:sapphirechirpedpulseamplification(CPA)lasersystemcanbeachievedbasedonbothofthetechniques,thetwodifferentpulsecleaningtechniquesstillhavetheirownadvantagesandaresuitablefordifferentcontrastenhancementrequirementsofdifferentlasersystems.
简介:Voiding机能障碍例如冲动频率症候群,主张不能自制,压力不能自制和unobstructive尿保留,对pharmacotherapy经常倔强。电的neuromodulation证明了为这些状况有益。作为电的neuromodulation的一治疗,Electroacupuncturepudendal神经刺激(杀虫剂的一种)为voiding机能障碍是有益的。杀虫剂的一种的表演和申请将在这篇文章被介绍。
简介:Nanocarbonmaterialsplayacriticalroleinthedevelopmentofneworimprovedtechnologiesanddevicesforsustainableproductionanduseofrenewableenergy.Thisperspectivepaperdefinessomeofthetrendsandoutlooksinthisexcitingarea,withtheeffortofevidencingsomeofthepossibilitiesofferedfromthegrowinglevelofknowledge,astestifiedfromtheexponentiallyrisingnumberofpublications,andputtingbasesforamorerationaldesignofthesenanomaterials.Thebasicmembersofthenewcarbonfamilyarefullerene,graphene,andcarbonnanotube.Derivedfromthemarecarbonquantumdots,nanohorn,nanofiber,nanoribbon,nanocapsulate,nanocageandothernanomorphologies.Secondgenerationnanocarbonsarethosewhichhavebeenmodifiedbysurfacefunctionalizationordopingwithheteroatomstocreatespecifictailoredproperties.Thethirdgenerationofnanocarbonsisthenanoarchitecturedsupramolecularhybridsorcompositesofthefirstandsecondgenerationnanocarbons,orwithorganicorinorganicspecies.Theadvantagesofthenewcarbonmaterials,relatingtothefieldofsustainableenergy,arediscussed,evidencingtheuniquepropertiesthattheyofferfordevelopingnextgenerationsolardevicesandenergystoragesolutions.