简介：以杭州曲院风荷景点为研究对象,以历史文献为线索,结合山水画、版画、照片、测绘图等图像资料,梳理其景观格局变迁历程,分析演变中景物间的联系,并对各时期园林发展情况进行总结。将其发展历程划分为南宋麯院时期、元代至明代衰落时期、清代更址重建时期及中华人民共和国成立至今的公园化时期。认为清康熙年间曲院的迁址与更名是景点发展的重要转折点,这一举动既使古老的景名得以延续,又使景点有了新的内涵和发展空间。园林建筑与环境的营造围绕＂曲＂这一主题展开,代表人工的＂曲院＂与代表自然的＂风荷＂体现了该景点人工建筑与自然景物并重的审美主旨。通过分析整理历史图像资料对于今人了解古代园林变迁有重要帮助。

简介：针对传统分类方法精度不高、感兴趣目标分类不理想等缺陷，采用多特征组合的支持向量机影像分类方法，利用颜色矩、颜色集和灰度共生矩阵进行特征提取，总体精度、Kappa系数和混淆矩阵作为评价指标对单一特征、组合特征的不同分类结果进行分析。实验结果表明，该方法有效地解决了单数据源分类不完整、精度低等问题，对高维输入向量具有较高的推广力。

简介：2012底至2013年初,郑州市文物考古研究院对郑州市黄河路109号院内两幢住宅楼工程区遗址进行了发掘,清理了殷墟时期小型墓葬43座。随葬品多为陶器,少量铜器、玉器及贝币。按陶器特征分析可将这批墓葬分为两个阶段,分别属于殷墟二期和三期。此次发掘为郑州地区殷墟时期墓葬研究提供了新的实物资料。

简介：摘要目的观察社区糖尿病患者的血脂控制水平。方法选择将社区糖尿病患者作为实验组并根据血糖水平及治疗状况进行分组，选择社区健康人群作为对照组。观察观察实验组与对照组的空腹血糖和血脂项指标并进行比较。结果实验组的血糖、TC、TG、和LDL浓度均明显高于对照组，而HDL浓度低于对照组，差异均具有统计学意义。（P<0.05）。未治疗组的血糖、TC、TG、和LDL浓度均明显高于血糖不达标组和血糖达标组，而HDL浓度低于血糖不达标组和血糖达标组，差异均具有统计学意义。（P<0.05）。结论对社区糖尿病患者应做到

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简介：2012年7.21特大暴雨期间,香山街道公主坟15号院边坡出现垮塌并造成了破坏,边坡亟需治理。本文介绍了该边坡的基本特征,分析了边坡的变形情况及影响因素并确定了边坡的破坏模式,并选用瑞典圆弧法评价了边坡的稳定性。根据边坡的实际情况,选择了适于土质边坡防治的新型支挡加固措施一格构锚固工程,并辅以挡土墙工程及绿化工程,作为边坡治理的工程措施。

简介：Someofthemostinterestingrefractionpropertiesofphononiccrystalsarerevealedbyexaminingtheanti-planeshearwavesindoublyperiodicelasticcompositeswithunitcellscontainingrectangularand/orellipticalmultiinclusions.Thecorrespondingbandstructure,groupvelocity,andenergy–fluvectorarecalculatedusingapowerfulmixedvariationalmethodthataccuratelyandefficientlyieldsallthefielquantitiesovermultiplefrequencypass-bands.Thebackgroundmatrixandtheinclusionscanbeanisotropic,eachhavingdistinctelasticmoduliandmassdensities.Equifrequencycontoursandenergy–fluvectorsarereadilycalculatedasfunctionsofthewave-vectorcomponents.Bysuperimposingtheenergy–fluvectorsonequifrequencycontoursintheplaneofthewave-vectorcomponents,andsupplementingthiswithathree-dimensionalgraphofthecorrespondingfrequencysurface,awealthofinformationisextractedessentiallyataglance.Thiswayitisshownthatacompositewithevenasimplesquareunitcellcontainingacentralcircularinclusioncandisplaynegativeorpositiveenergyandphasevelocityrefractions,orsimplyperformsaharmonicvibration(standingwave),dependingonthefrequencyandthewave-vector.Moreover,thatthesamecompositewheninterfacedwithasuitablehomogeneoussolidcandisplay:(1)negativerefractionwithnegativephasevelocityrefraction;(2)negativerefractionwithpositivephasevelocityrefraction;(3)positiverefractionwithnegativephasevelocityrefraction;(4)positiverefractionwithpositivephasevelocityrefraction;oreven(5)completereflectiowithnoenergytransmission,dependingonthefrequency,anddirectionandthewavelengthoftheplane-wavethatisincidentfromthehomogeneoussolidtotheinterface.Forellipticalandrectangularinclusiongeometries,analyticalexpressionsaregivenforthekeycalculationquantities.Expressionsfordisplacement,velocity,linearmomentum,strain,andstresscomponents,aswellastheenergy–fluandgroupveloc

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简介：Theinfluenceofairgapsontheresponseoftransmissionforatransverse-electricmodeparallel-platewaveguide(TE-PPWG)withasinglecavityanddoublecavitieshasbeenstudiedexperimentally.Astheairgapislargerthantheresonantwavelengthofhighordercavitymodeinthesingledeepgroovedwaveguide,onlythefundamentalcavitymodecanbeexcitedandsingleresonancecanbeobservedinthetransmissionspectrum.Basedonaboveobservations,atunablemultibandterahertz(THz)notchfilterhasbeenproposedandthevariationofairgaphasturnedouttobeaneffectivemethodtoselectthebandnumber.Experimentaldataandsimulatedresultsverifythisbandnumbertunability.Thismechanicalcontrolmechanismforelectromagneticinducedtransparency(EIT)willopenadoortodesignthetunableTHzdevices.

简介：<正>OntheConferenceonForeignAffairsoftheCentralCommitteeoftheCommunistPartyofChinaheldon28to29,November2014,ChinesePresidentXiJinpingpointedoutthatChinashouldformitsmajor-countrydiplomacywithChinesecharacteristics,thusmakingthediplomaticworkofChinabewithdistinctiveChinesecharacteristics,ChinesestyleandChinesemanner.Thiswasnotonlyasummaryofdiplomaticworkofthepasttwoyearsbythenew

简介：输电线路在自然灾害或人为破坏等外力干扰下,易受损坏或发生故障,致使电力系统全部或部分功能丧失。将输电线路物理脆弱性定位于＂功能失效＂,从人与环境对输电线路造成的压力、输电线路自身状态及功能失效后的响应等方面进行分析,构建输电线路物理脆弱性评估指标体系;借鉴已有评估方法,提出基于压力指数、状态指数和响应指数的评估模型;应用三角图法对输电线路进行物理脆弱性评估和分类,分析影响输电线路物理脆弱性的主要因素。以某500kV输电线路为例进行实例分析,结果表明影响该输电线路脆弱性关键因素为压力和响应。

简介：利用S7-200PLC对德国FestoTP701比例控制技术实验台的所有实验项目进行了整合改造,减少了电气部分的接线;各实验之间只需更换液压回路,无需重新进行电气布线。给出了部分实验程序的设计方法、梯形图程序和程序调试结果。

简介：Analysisofmagneticpropertiesofmarinesurfacesedimentshasbeengraduallyprovedtobeoneoftheeffectivemeansforresearchingthesourceofmarinesediments.Inthispaper,samplesfrom39sitesinLiaodongBaywerecollectedtoanalyzethemagneticcharacteristicsofthesurfacesediments.MagneticstudyindicatedthatthesurfacesedimentsoftheLiaodongBayarecharacterizedbymagnetite.InthemiddleandeasternpartandthesouthwestcorneroftheBay,themainmagneticgrainswerecoarsemulti-domainandpseudo-single-domainparticles,whileinotherareassingle-domainandpseudo-single-domainparticlesconstitutethemajority.Basedongrainsizeandenvironmentalmagnetismdata,thecontentofmagneticmineralshasapositivecorrelationwiththehydrodynamicenvironmentwhenthemagneticmineraldomainisfiner.However,thecontentofmagneticmineralsisinacomplexrelationshipwiththehydrodynamicenvironmentinthecoarsemagneticdomainofmagneticmineralsfoundincentralLiaodongBayandplacesoutsidetheFuzhouBay,implyingthatthestronghydrodynamicenvironmentacceleratesthesedimentationofcoarsemagneticminerals.Basedongeographicpatternofmagneticproperties,itcanbeinferredthatthemainprovenanceofthesurfacesedimentsoftheLiaodongBayisthesurroundingrivers,andthecomparativeanalysisindicatesthatYellowRiversubstancesmaybealsoexistinthebay.

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简介：Measurementsofparticulatematter(PM),i.e.,PM10,PM2.5,andPMl,havebeenperformedontheCantonTower,alandmarkbuildinginGuangzhou,atheightsof121and454msinceNovember2010,usingaGRIMM180aerosolparticlespectrometer(Germany).AnalysesofdatafromNovember2010toMay2013showedthattheannualaveragevaluesofPM10,PM2.5,andPMlattheobservationheightof121mabovethegroundwere44.1,38.2,and34.9μg/m3,respectively,andthoseat454mabovethegroundwere35.7,30.4,and27.5μg/m3,respectively.ByconsideringthevaluesofthesecondaryconcentrationlimitsgivenintheAmbientAirQualityStandardsissuedin2012,itwasobservedthattheannualaveragevaluesofPM10attheobservationheightsof121and454m,aswellasthoseofPM2.5at454m,reachedthosestandards.Furthermore,theover-standardamplitudeoftheannualaveragevalueofPM2.5attheobservationheightof121mwas9.1%.Duringtheobservationperiod,themaximumdailyaveragevaluesofPM10,PM2.5,andPM1attheobservationheightof121mwere183.3,144.8,and123.8μg/m~3,respectively,andthoseat454mwere102.8,92.7,and86.4μg/m3.ThedailyaveragevaluesofPM10attheobservationheightof454mwerenotabovethestandards.Theover-standardfrequenciesofthedailyaveragevaluesofPM10andPM2.5attheobservationheightof121mwere0.6%and10.7%,respectively,andtheover-standardamplitudeswere9.0%and24.4%,respectively.Theover-standardfrequencyofthedailyaveragevalueofPM2.5attheobservationheightof454mwas2.0%,andtheover-standardamplitudewas10.4%.Accordingly,itcanbestatedthattheairattheobservationheight454mabovethegrounddidnotreachthesecondarylimitofthenewstandards.Thepollutionwasmostseriousduringwinter,andtheairwasrelativelycleanerduringsummer.Overall,theverticaldistributionsofPM10,PM2.5,andPMldecreasedwithheight.Thelapseratesshowedthefollowingsequence:PM10>PM2.5>PM1,whichindicatesthattheverticaldistributionoffineparticles

简介：作为水泥，磨擦在粒子特征和水泥的机械性质上帮助的修改triethanolamine的效果被学习，并且它的反应机制被红外，希腊语的第六个字母潜力，SEM，XRD和TG-DTA分析。结果证明为有0.015%修改triethanolamine(M茶)的水泥的332个m粒子的内容被12.4%增加，并且有0.03%M茶的水泥的压缩力量被5.5和8.2MPa分别地在3和28天增加。并且在水泥上磨擦和M茶的改进效果比triethanolamine好。机制分析显示出那M茶不仅氨基并且氢氧根茶组织，而且有酉旨，羰基，容易与水泥矿物质的金属离子结合的carboxyl组，导致那M茶能支持表面吸附并且在表面和粒子的裂缝节防护不饱和的费用，因此，粒子重聚被阻止，磨擦效率被改进。水泥上的M茶的改进主要躺因为它能与石膏和水支持或导致水泥矿物质的水和反应，它加速水和产品的形成，然后改进水泥水和产品的结构和形态学，因此，产品结构的一致性和紧密被增加。

简介：几年前，我在山西上班，公司离住处比较远，来不及吃早饭，只能在街上买点卷饼凑合。街上的卷饼摊很多，但我发现有一家卷饼摊的生意明显好过其他家，所以我决定前去品尝。终于排到我了，我问了一下卷饼的价格，摊主介绍五块钱一个。别的卷饼摊都是三块五，我想到一分价钱一分货，这么多人买，肯定错不了，于是便要了一个，卷饼做出来后我有些惊讶，这家的卷饼比别家大出一号，尝尝味道则差不多。

简介：摘要目的探讨院前急救护理流程在院前急救中的作用。方法对比我院院前急救护理流程优化前后院前急救的各项指标。结果护理流程改造后，院前急救效果显著改善,差异有统计学意义（P＜0.05）。结论在院前急救中优化院前急救护理流程有利于缩短出诊反应时间,改善抢救效果,临床上应当推广应用。

简介：Lawisthefundamentalmethodofgovernanceandtheruleoflawsymbolizesmoderncivilization.ThesocialistruleoflawistheruleoflawrootedintheChinesetradition,anddesignedandledbytheCommunistPartyofChina(CPC).Itisnotonlyatoolforgovernment,butalsoadriverofsocialprogress.Meanwhile,theChinesehumanrightssystemisalsodesignedbytheCPC.Bothconcepts—thesocialistruleoflawandthehumanrightssystem——aredifferentfromtheWestintermsoftheory,pathandsystems.Humanrightsarethefundamentalvaluesofandtheultimategoalpursuedbytheruleoflaw;andtheruleoflawistherecognitionofandguaranteeforhumanrights.Effortsmustbemadetoadvancelegislative,administrativeandjudicialprotectionofhumanrights.