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简介：Becauseofrapiddevelopmentinnetworktechnology,Internetusagehasbecomewidespread.Itallowsuserswithsensingdevicestoobtainmedicaldataforhealthcare,suchasphysiologicalsignals,voice,andvideostreamsfromtelemedicinesystems,andtosendthehealthcaredatatoback-enddatabasesystems,creatingaubiquitoushealthcareenvironment.However,thisenvironmentrequiresawidespreadandsuitablenetwork.IPv6(Internetprotocolversion6)isthenext-generationInternetprotocolthatwillbetheprotocoloffuturenetworks;itimprovesmanyshortcomingsofIPv4.Inthispaper,weproposeanIPv6/IPv4U-home-caretestsystemandanalyzethenetwork’sparametersthoughaseriesoftestsbyadjustingnetworkparameterstofindtheoptimaldesignforapplicationsintheIPv6/IPv4U-home-careservicesoastoassuregoodperformanceandhighquality.

简介：ThisresearchaimstoinvestigatethewritingproficiencyofHongKongpre-serviceESLteachers,inparticularhowtheirwritingproficiencydiffersascharacterizedbydistinguishingfeaturesinherentinsuchteachers'writingperformances.Over120pre-serviceESLteachersfromvariousprogrammesinlocaluniversitiesinHongKongwererecruitedforthestudy.Resultsshowedthatthehighertheirwritinglevel,thebettertheyperformedinasettaskaswellasingrammaticalrangeandaccuracy.Thedifferentprogrammestheyenrolledincouldaffectthenumberofcohesivedevicestheytendedtouse.Modeandyearsofstudyhadaneffectontaskachievementandnumberofcohesivedevice.Pre-serviceteachersenrolledintheteachertrainingprogrammesonapart-timebasisoutperformedthoseenrolledonafull-timebasis.Teacherswithmoreteachertrainingoutperformednewlyadmittedpre-serviceteachers.TheresultsofthisstudycouldprovideempiricalevidenceforidentifyingdifferentlevelsofwritingproficiencyforHongKongpre-serviceESLteachers.Onthisbasis,thelinkbetweenthewritingproficiencyofpre-serviceESLteachersandtheirassessmentofstudentscriptscouldbesubsequentlyestablishedinafollow-upstudytoexploretheirdifferencesinscoringfocusesandstrategieswhenscoringstudents'writings.Thiscouldfurthercontributetoteacherevaluation,teachertrainingconcerninglanguageproficiency,andtheimprovementofteachers'assessmentliteracyinhigh-stakesandL2classroomwritingassessment.

简介：ThesoftwareofSYSWELDwasusedtobuildmodelandsimulatethermalcycleofin-serviceweldingontoactivegaspipeline.Influenceofpipediameter,wallthicknessandheatinputonthermalcyclewasstudied.Theresultsshowthatt8/5,t8/3andpeaktemperatureofinnersurfacedecreasewhenwallthicknessincreasesfrom5mmto12mm.Butt8/1willincreaseswiththeincreaseofwallthicknessandwilldecreaseafterthewallthicknessislargerthan7mm.Pipediameterhaslittleinfluenceonthermalcycleandthatinfluencecanbeignoredwhenpipediameterisgreaterthan273mm.t8/5,t8/3,t8/1andpeaktemperatureofinnersurfacewillincreasewiththeincreaseofheatinput.

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简介：OutlookMobileService（OMS）允许用户使用SMSService向手机发送SMS信息。在OMS配置设置中，如果添加了Outlook配置文件，意味着你可以向启用SMS服务的移动设备发送日历数据。对于公司中每天早晨不去办公室，或者不使用同步化应用程序或协议（如ActiveSync）的职员来说，该特性特别有用。

简介：业务层则实现了系统的流程模板描述服务和工作流引擎,流程建模界面可以交互地完成用户工作流流程的定义描述,　　表示层为用户提供工作流流程建模界面和监控界面

简介：由偶然的价值方法，我们在Heilongjiang省学习了Hongxing国家自然保护区(HNNR)的沼泽地生态系统服务的弃权价值，东北中国。为HNNR的保护的愿意付钱的回答者(WTP)的比例是63?%。WTP比率受回答者的地理区域，接触性质，个人偏爱，和熟悉的度影响。WTP价值受年龄，教育水平和回答者的事业影响。主要推理因为拒绝支付保护HNNR的人是我不对HNNR熟悉，我没为因为低收入的另外的花有能力。加权的平均单个WTP价值是为有WTP的所有回答者的CNY59.26元ind1年1。HNNR的全部的弃权生态系统服务价值是CNY1430在2013的百万元。遗产价值被存在价值和选择价值最高跟随。从在HNNR的高生态系统服务价值，为保护自然生态系统和自然资源的人的持续使用构造自然保护区是很重要的。

简介：分析了WebService和.NETRemoting这两种分布式技术的特点,设计了一种适合中小企业的分布式系统模型。在此模型中利用.NETRemoting可为内部用户提供灵活高效的服务,同时通过WebService为外部用户提供服务接口,内外部用户均可以共享内部资源,也使得系统安全性更高。

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简介：服务学习是一种将社区服务与课程学习有计划结合的教学方法，将社会服务融人课程中，让学生在真实的社区环境中观察、筹划、实践、反思、评估，积极、主动地学习知识，认知社会，服务社会，实现学生的成长与社区需求满足的双赢。文中结合美国费里斯州立大学在服务学习教学方法中的经验做法，将其引人到《社会学概论》课程教学中，改变课堂组织形式和教学方法，以期提升教学质量，并实现服务学习方法的本土化。

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简介：Thispaperconsidersadiscrete-timeGeo/G/1queueinamulti-phaseserviceenvironment,wherethesystemissubjecttodisastrousbreakdowns,causingallpresentcustomerstoleavethesystemsimultaneously.Atafailureepoch,theserverabandonstheserviceandthesystemundergoesarepairperiod.Afterthesystemisrepaired,itjumpstooperativephaseiwithprobabilityqi,i=1,2···,n.Usingthesupplementaryvariabletechnique,weobtainthedistributionforthestationaryqueuelengthatthearbitraryepoch,whicharethenusedforthecomputationofotherperformancemeasures.Inaddition,wederivetheexpectedlengthofacycletime,thegeneratingfunctionofthesojourntimeofanarbitrarycustomer,andthegeneratingfunctionoftheserver’sworkingtimeinacycle.Wealsogivetherelationshipbetweenthediscrete-timequeueingsystemtoitscontinuous-timecounterpart.Finally,someexamplesandnumericalresultsarepresented.

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简介：Fromtheviewpointofservicelevelagreements,thetransmissionaccuracyrateisoneofcriticalperformanceindicatorstoassessinternetqualityforsystemmanagersandcustomers.Undertheassumptionthateacharc'scapacityisdeterministic,thequickestpathproblemistofindapathsendingaspecificofdatasuchthatthetransmissiontimeisminimized.However,inmanyreal-lifenetworkssuchascomputernetworks,eacharchasstochasticcapacity,leadtimeandaccuracyrate.Suchanetworkisnamedamulti-statecomputernetwork.Underbothassuredaccuracyrateandtimeconstraints,weextendthequickestpathproblemtocomputetheprobabilitythatdunitsofdatacanbesentthroughmultipleminimalpathssimultaneously.Suchaprobabilitynamedsystemreliabilityisaperformanceindicatortoprovidetomanagersforunderstandingtheabilityofsystemandimprovement.Anefficientalgorithmisproposedtoevaluatethesystemreliabilityintermsoftheapproachofminimalpaths.

简介：AbstractBackground:Unawareness of stroke symptoms and low income are two barriers that affect the seeking of emergency medical service (EMS). This study aimed to assess the effect of unawareness and low income on seeking EMS and to investigate the regional distribution of the unawareness and low-income status and their associations with failing to call EMS in China.Methods:A total of 187,723 samples from the China National Stroke Screening Survey was interviewed cross-sectionally. Four status of awareness and annual income were identified: unaware and low-income, unaware-only, low-income-only, and aware and regular income. The outcomes were whether they intended to call EMS or not. The regional distribution of each status and their associations with not calling EMS were presented.Results:The status of unaware and low-income, unaware-only, and low-income-only accounted for 6.3 % (11,806/187,673), 11.9% (22,241/187,673), and 21.5% (40,289/187,673) of the total sample, respectively. Not calling EMS was significantly associated with the status of unaware and low-income (odds ratio [OR]: 3.21, 95% confidence interval [CI]: 3.07-3.35), unaware-only (OR: 2.38, 95% CI: 2.31-2.46), and low-income-only (OR: 1.67, 95% CI: 1.63-1.71), compared with the aware and regular income status. The Midwest regions had higher percentages of people in the unaware and low-income status; the East, South, and Central had higher percentages of unaware-only status; the North and Northeast regions had a higher percentage of low-income-only status, compared with other regions.Conclusion:The existence of the regional difference in unawareness and low income justifies the specific stroke education strategies for the targeted regions and population.

简介：Thispaperdealswithadiscrete-timeGeo/Geo/1queueingsystemwithworkingbreakdownsinwhichcustomersarriveatthesysteminvariableinputratesaccordingtothestatesoftheserver.Theservermaybesubjecttobreakdownsatrandomwhenitisinoperation.Assoonastheserverfails,arepairprocessimmediatelybegins.Duringtherepairperiod,thedefectiveserverstillprovidesserviceforthewaitingcustomersatalowerservicerateratherthancompletelystoppingservice.Weanalyzethestabilityconditionfortheconsideredsystem.Usingtheprobabilitygeneratingfunctiontechnique,weobtaintheprobabilitygeneratingfunctionofthesteady-statequeuesizedistribution.Also,variousimportantperformancemeasuresarederivedexplicitly.Furthermore,somenumericalresultsareprovidedtocarryoutthesensitivityanalysissoastoillustratetheeffectofdifferentparametersonthesystemperformancemeasures.Finally,anoperatingcostfunctionisformulatedtomodelacomputersystemandtheparabolicmethodisemployedtonumericallyfindtheoptimumservicerateinworkingbreakdownperiod.