简介：日前,DAILYRFID发布了新款UHF高性能固定式读取器。读取器可以连接四个天线以覆盖更广泛的区域。每根天线的读取距离可达30米,系统最多可以同时读取400个标签。设备配备一个开发者套件,支持多种编程语言,包括VC++、Delphi、C#、VB.net和VB6.0。

简介：教学改革深入开展，冲击着固有的教育教学理念，也给予了广大英语教师发展英语教学的契机。高中英语课堂教学中，DailyReport活动活跃了气氛、创设了学习情境、锻炼了学生。如果教师进一步优化其策略和评价体系，就能把握契机，提高课堂效益，提升学生语用能力和审美品位。

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简介：以往DailyTalk形式单一,话题老套,学生缺乏积极性,又由于缺少合适的评价方式和教师的指导,无法取得积极的效果。本文作者就DailyTalk这一课堂活动形式进行改进和尝试,开展形式多样DailyTalk,为课堂活动注入新的活力,使课堂效率得到显著提高。

简介：有卫星数据集的表面土壤水分蒸发蒸腾损失总量(et)的评价是在气候变化，灾难在西藏自治区域(tar)监视和水蒸汽和精力的发行量的理解的主要题目之一。这研究在1月11日选择卫星图象，在2010的4月6日，7月31日和象冬季，春天，夏天和秋天的代表的10月19日分别地，与潜在的土壤水分蒸发蒸腾损失总量(宠物)和从Penman-Monteith(下午)方法导出的et一起基于表面精力平衡系统(SEBS)估计每日的表面et的分发。结果如下被获得。(1)et和宠物的季节的分发基本上从东南部分减少到焦油的西北部分。尽管et和宠物有类似的空间分布，仍然有一些差别估计极端特别在焦油的中间、东南的部分珍视最大的价值。不管我们采用了什么样的方法，et和宠物的最大的价值总是出现在夏天，当那在冬季是最小的时，由秋天或春天列在后面。(2)在et的评价当模特儿以便更好理解SEBS的精确性，我们从从下午方法获得的SEBS和ET比较了ET。结果证明从SEBS的ET能估计实际et的变化趋势，但是它稍微总体上低估或过高估计et的价值，特别为有厚森林的那些区域。(3)规范的差别植被索引(NDVI)的空间分发从东南部分展出一个减少的趋势到显示在et和植被索引之间的分布的显著一致性的tar的西北部分。当时，et与在不同季节的NDVI，最小，平均数，最大的空气温度和阳光持续时间有关断然好否定地在夏天与降水，相对湿度和风有关加速。

简介：AccordingtothedataoftheChineseLongitudinalHealthyLongevitySurvey(CLHLS)andapplyingmethodsofSullivanandmultistatelifetable,thispaperexaminesthetimeexpectancyofcarefordailylivingofChineseelderlyanditsproportionintheirelderlylife.Theresultsfindthatthereexistsasignificantgendergapoftheexpectancy,whichthemaleat65averagelyareexpectedtohavefourtofivecareyearswhilethefemaleat65averagelyareexpectedtohaveseventoeightcareyears.Thetimeexpectancyforslightcareofdailylivingislongerthanthatforsevercare.Additionally,thereisnosignificantdifferencebetweenurbanelderlyandruralelderly.However,asageincreases,thetimeexpectancyforslightcaregoesdownwhilethatforsevercarestabilitiesataconstantatdifferentages.Thetimeexpectancyfordifferenttypesofcareanditsproportionintherestoflifearesignificantlyvarious.Thestudypointsoutthattheestablishmentandimprovementofcareinsurancesystemandtheelderlycareserviceareverynecessary.

简介：一个小浪方法被使用在每日的气象学的系列检测不同类，逐渐地正在被使用在的数据气候极端学习。小浪方法被用于一些生长得很好的长期的每日的温度系列回到第18世纪，它与常规途径被“一致”。留在系列的问题的各种各样的类型与小浪方法被揭示。他们对在气候极端的变化的分析的影响被讨论。结果有重要性让在常规气候数据处理理解问题以便基于每日的数据改进气候极端的分析。

简介：Longseriesofdailyweatherdataarefrequentlyneededtoevaluatediachronicclimaticimpactonwaterresources,theeffectsofwatershedchangesonhydrologyandtouseinavarietyofweatherandgeneralcirculationmodels.AcomputergenerationmodelcalledWGENthatwasdevelopedintheUnitedStatesofAmerica,wasmodifiedinthisstudyandappliedtoNigerianweatherdataspanningtheperiodbetween1969to1988andcovering17siteslocatedinthedifferentclimaticzonesinNigeria.Themodelgeneratedthemonthlymeanmaximumandminimumtemperatures,solarradiation,totalrainfall,andnumberofwetanddrydayswithhighaccuracy,95%ofthetimes.TheMann-WhitneyU-testrevealedthatthenumberofmonthsperyearforwhichobservedandgeneratedweathervariablesweresignificant,waslessthan4inmajorityofthesites.

简介：Forpredictionoftheextremesignificantwaveheightintheoceanareaswherelongtermwavedataarenotavailable,theempiricalmethodofextrapolatingshorttermdata(1～3years)isusedindesignpractice.Inthispapertwomethodsareproposedtopredictextremesignificantwaveheightbasedonshort-termdailymaxima.AccordingtothedaarecordedbytheOceanographicStationofLiaodongBayattheBohaiSea,itissupposedthatdailymaximumwaveheightsarestatisticallyindependent.Thedatashowthatdailymaximumwaveheightsobeylog-normaldistribution,andthatthenumbersofdailymaximavaryfromyeartoyear,obeyingbinomialdistribution.Basedonthesestatisticalcharacteristics,thebinomial-log-normalcompoundextremumdistributionisderivedforpredictionofextremesignificantwaveheights(50～100years).Forexaminationofitsaccuracyandvalidity,thepredictionofextremewaveheightsisbasedon12years′dataatthisstation,andbasedoneach3years′datarespectively.Theresultsshowthatwithconsiderationofconfidenceintervals,thepredictedwaveheightsbasedon3years′dataareveryclosetothosebasedon12years′data.TheobserveddatainsomeoceanareasintheAtlanticOceanandtheNorthSeashowitisnotcorrecttoassumethatdailymaximumwaveheightsarestatisticallyindependent;theyaresubjecttoMarkovchaincondition,obeyinglog-normaldistribution.Inthispaperananalyticalmethodisderivedtopredictextremewaveheightsinthesecases.AcomparisonofthecomputationsshowsthatthedifferencebetweentheextremewaveheightsbasedontheassumptionthatdailymaximaarestatisticallyindependentandthattheyaresubjecttoMarkovChainconditionissmallerthan10%.

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简介：Gutmicrobiotaareinvolvedinthedevelopmentorpreventionofvariousdiseasessuchastype2diabetes,fattyliver,andmalignancysuchascolorectalcancer,breastcancerandhepatocellularcarcinoma.Alzheimer’sdisease,osteoporosis,sarcopenia,atheroscleroticstrokeandcardiovasculardiseasearemajordiseasesassociatedwithdecreasedactivitiesofdailyliving(ADL),especiallyinelderlypeople.Recentanalyseshaverevealedtheimportanceofgutmicrobiotainthecontrolofthesediseases.Thecompositionordiversityofthesemicrobiotaisdifferentbetweenpatientswiththeseconditionsandhealthycontrols,andadministrationofprobioticsorprebioticshasbeenshowneffectiveinthetreatmentofthesediseases.Gutmicrobiotamayaffectdistantorgansthroughmechanismsthatincluderegulatingtheabsorptionofnutrientsand/ortheproductionofmicrobialmetabolites,regulatingandinteractingwiththesystemicimmunesystem,andtranslocatingbacteria/bacterialproductsthroughdisruptedmucosalbarriers.Thus,thegutmicrobiotamaybeimportantregulatorsinthedevelopmentofdiseasesthataffectADL.Althoughadequateexerciseandproperdietareimportantforpreventingthesediseases,theircombinationwithinterventionsthatmanipulatethecompositionand/ordiversityofgutmicrobiotacouldbeapromisingstrategyformaintaininghealthconditionandpreservingADL.ThisreviewthussummarizescurrentunderstandingoftheroleofgutmicrobiotainthedevelopmentorpreventionofdiseasescloselyassociatedwiththemaintenanceofADL.

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简介：这份报纸为全球阳光持续时间评价论述一个改进模型。方法论由包括雪盖子信息，阳光和卫星角度和一个趋势修正因素季节合并地球同步的卫星图象，为云盖子索引的决心。建议方法论的有效性与1h的时间的分辨率和2.5km瑵洠慥?汦睯?湡?慷?畦瑲敨?浥汰祯摥琠?瑳摵?桴?的空间分辨率在可见乐队用Meteosat地球同步的卫星图象被测试了晥敦瑣漠?桴?敭湡映潬?湯琠敨愠潣獵楴?数晲牯慭据?景琠敨洠?汦牥.閌?閌吗？？

简介：AbstractBackground:The outbreak of coronavirus disease 2019 (COVID-19) has become a pandemic causing global health problem. We provide estimates of the daily trend in the size of the epidemic in Wuhan based on detailed information of 10 940 confirmed cases outside Hubei province.Methods:In this modelling study, we first estimate the epidemic size in Wuhan from 10 January to 5 April 2020 with a newly proposed model, based on the confirmed cases outside Hubei province that left Wuhan by 23 January 2020 retrieved from official websites of provincial and municipal health commissions. Since some confirmed cases have no information on whether they visited Wuhan before, we adjust for these missing values. We then calculate the reporting rate in Wuhan from 20 January to 5 April 2020. Finally, we estimate the date when the first infected case occurred in Wuhan.Results:We estimate the number of cases that should be reported in Wuhan by 10 January 2020, as 3229 (95% confidence interval [CI]: 3139–3321) and 51 273 (95% CI: 49 844–52 734) by 5 April 2020. The reporting rate has grown rapidly from 1.5% (95% CI: 1.5–1.6%) on 20 January 2020, to 39.1% (95% CI: 38.0–40.2%) on 11 February 2020, and increased to 71.4% (95% CI: 69.4–73.4%) on 13 February 2020, and reaches 97.6% (95% CI: 94.8–100.3%) on 5 April 2020. The date of first infection is estimated as 30 November 2019.Conclusions:In the early stage of COVID-19 outbreak, the testing capacity of Wuhan was insufficient. Clinical diagnosis could be a good complement to the method of confirmation at that time. The reporting rate is very close to 100% now and there are very few cases since 17 March 2020, which might suggest that Wuhan is able to accommodate all patients and the epidemic has been controlled.

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简介：Inthispaper,weusethedailyrangesoftheverticalmagneticintensityofapproximately76geomagneticstationsfromJanuary1,2008toDecember31,2010toanalyzethespatialandtemporalcharacteristicsofZranges.Theresultsaresummarizedasfollows:(1)Temporally,weuseregressiveanalysisandFFTanalysistoanalyzethedata.TheresultsshowthattheZcomponentdailyrangesofallstationshaveanobviouscyclicalvariation,thecomputedFourierspectraofalldatasetshaveclearlyresolvedtherequiredperiodicitiesinthedata,intheformofdistinctpeaksatdays365,183,22,and73,andthepowerspectraofday365isthehighestinallperiods.(2)Intermsofspatialvariation,thedailyrangesshownonlinearvariationwithlatitudeinChina.Theresultsshowtheexistenceofapointofinflexion(maximalvaluepoint)nearbyatabout25°N,thedailyrangesofZrisefrom15°~25°Nandhaveagoodlineardecreasevariationalongwith25°~50°N.(3)ComparedwiththespatialandtemporalvariationsofZdailyrangeswiththeSqcurrentinversion,wefoundthatthespatialandtemporalcharacteristicsofZrangesaredecidedmainlybythespatio-temporalevolutionoftheSqcurrentsystem.(4)IfthelatitudesofthemaximumamplitudesofvariationoftheverticalcomponentinthegeomagneticquietdaysareroughlytakenasthelatitudescorrespondingtothefociofSqoverheadcurrentsystem,wecanseethattheselatitudesoffocibecomehigherinsummer,arelowestinwinterandhighestduringEquinoxes,displayingconspicuousmonthlyanddailyvariations.Fortwosuccessivegeomagneticquietdays,thelatitudesoffocimayvarytendegrees.

简介：新课标下的英语课堂教学从重语言知识的传授转向重语言能力的培养。随着英语课程改革的深入，高中英语课堂教学也更关注学生的情感需求和自主学习能力的培养。教师的课堂教学内容与学生的生活联系更加紧密，教师在教学中也更重视对学生提取信息和处理信息能力的培养，