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简介:Inthecontextofglobalwarming,Chinaisfacingwithincreasingclimaterisks.Itisimperativetodevelopquantitativeindicestoreflecttheclimateriskscausedbyextremeweather/climateeventsandadverseclimaticconditionsinassociationwithdifferentindustries.Basedontheobservationsat2288meteorologicalstationsinChinaandthemeteorologicaldisastersdata,asetofindicesaredevelopedtomeasureclimaterisksduetowater-logging,drought,hightemperature,cryogenicfreezing,andtyphoon.Astatisticalmethodisthenusedtoconstructanoverallclimateriskindex(CRI)forChinafromtheseindividualindices.Thereisagoodcorrespondencebetweentheseindicesandhistoricalclimaticconditions.TheCRI,theindexofwater-loggingbyrain,andthehightemperatureindexincreaseatarateof0.28,0.37,and0.65perdecade,respectively,from1961to2016.Thecryogenicfreezingindexiscloselyrelatedtochangesintheconsumerpriceindexforfood.Thehightemperatureindexiscorrelatedwiththeconsumptionofenergyandelectricity.Thecorrelationbetweentheyearlygrowthinclaimsonhouseholdpropertyinsuranceandthesumofthewater-loggingindexandthetyphoonindexinthesameyearisashighas0.70.BoththegrowthrateofclaimsonagriculturalinsuranceandtheannualgrowthrateofhospitalinpatientsarepositivelycorrelatedwiththeCRI.Theyear-on-yeargrowthinthenumberofdomestictouristsissignificantlynegativelycorrelatedwiththeCRIinthesameyear.MoreeffortsareneededtodevelopregionalCRIs.
简介:TheTheGreat-WestDykewithalengthof6.7km,thelargestseawallinChina,wascompletedinJune,1994.Thispaperintroducesstructureoptionsofnibblemoundseawallonsoftfoundationandanewtypeofarmourblock-hexagonmultiholeblock(HMB)andanewmethodoftreatmentforsoftfoundationbyusingunderwaterexplosion.ConstructionpracticeofsomeprojectsinChinashowsthatbyusingthismethodgoodeffectoftreatmentandmarkedeconomicbenefitcanbeachievedbyusingthismethod.
简介:TheexcitingsourceoftheactivesourcerepeatedmonitoringislocatedintheXiliushuiReservoirinZhangye,GansuProvince.ThesystembeganoperatingnormallyonJuly9,2015,andwehadcompletedaperiodof40daysofcontinuousexcitationexperimentbeforeNovember10,2015.Ourresultsrevealthattheairgunsourcehasgoodconsistencyandrepeatability,andthedetectivesystemofactivesourcecanrecordsignalclearly.Theconstructionofactivesourcerepeatedexplorationprojectshasachievedsomeresults,whichcanprovidevaluableexperiencefortheresearchofactivesourcerepeatedexploration.TheobservationdataweobtainedmakesitpossibletofollowthetemporalandspatialvariationsofthedeepstructureoftheQilianMountainareas.
简介:Lossassessmentanddecision-makingareessentialforearthquakeemergencyrescues,andforscientificpredictionofseismicdamageanddeterminationofrescueobjectives.Inpractice,however,thereexistsomeproblems,suchasbasicdatanotbeingpreciseandrichenoughanddecisionmakingnothavingsystematicandcompletecriteria.Thispapertriestosolvetheseproblemsusingthemethodofdataindexationbyconstructinganindexsystemforearthquakeemergencylossassessmentanddecision-making.
简介:这份报纸为在近差错的区域构造地震设计系列论述方法论。由分析近差错的脉搏类型地面运动的特征,一个相等的脉搏模型被建议,它能很好代表特征近差错前面择向性并且抛步脉搏类型地面运动。为近差错的区域的规范的水平地震设计系列用记录近差错的脉搏类型地面运动被介绍,相等的脉搏类型扎根了运动,它基于结合的相等的脉搏模型被导出地面运动参数变细关系。为近差错的区域的规范的垂直地震设计系列被与vertical-to-horizontal加速放大相应水平系列获得光谱近差错的脉搏类型的比率扎根了运动。建议地震设计系列看起来在统计意义有相对小的分散。为水平、垂直的方向的地震设计系列能提供选择光谱为地震设计代码的形状。
简介:本文提供了从1975年至今在北海采用的EOR技术的总结和指导原则。在北海已经采用的5项技术是注混相烃气、WAG、SWAG(水气同时交替注入)、FAWAG(泡沫辅助水气交替注入)和MEOR。用每项EOR技术的各自成熟程度或成熟期、技术应用限制以及在增油基础上的工艺效率,鉴定在北海已经采用的每种EOR技术。除了在Ekofisk油田进行的WAG和在SnorreCFB进行的FAWAG外,所有技术都在相应的油田获得了成功。认为注混相烃气和WAG在北海是成熟技术。在北海最普遍采用的技术是WAG并且被认为是最成功的EOR技术。出现的主要问题是注入能力(WAG、SWAG和FAWAG项目)、注入系统监测和油藏非均质性(注混相烃气、WAG、SAWAG、和FAWAG项目)。在报道的所有EOR技术矿场应用中,有约63%是在挪威大陆架进行的,有32%是在英国大陆架进行的,其余的是在丹麦大陆架进行的。Statoil是在北海进行EOR技术矿场应用的领先者。以后,大部分研究将集中在微生物工艺、注C02和WAG(包括SWAG)方面。在这次评述中没有考虑室内技术、世界统计、模拟工具和经济评价,因为这些方面超出了本文的范围。
简介:重建的向量pCANTAB5EE被插入包含了一个EcoRV识别序列进pCANTAB的34搁浅bpdouble的oligonucleotide获得5E。Whitespot症候群病毒(WSSV)染色体DNA被sonication碎裂主要在0的范围孤立碎片。8~2.0kb,当时,碎片与T4DNA聚合酶是钝结束的并且克隆5EE进pCANTAB的EcoRV地点。图书馆的主要recombinant克隆是随机的选择re-combinants的5.ColonyPCR显示出的3.0x10~inserts的尺寸是0.12~整个图书馆recombinant噬菌体感染了的1.77kb.AfterEscherichi--关口iHB2151房间,细胞外并且periplasmic摘录在PVDF膜上被扔执行点污点,usingpoly同种细胞的老鼠anti-VP24浆液,anti-WSV026浆液,anti-WSV063浆液,anti-WSV069浆液,anti-WSV112浆液,anti-WSV238浆液,anti-WSV303浆液和anti-VP26浆液结果证明显示图书馆能表示病毒的蛋白质。
简介:TheWei-LiuwatersupplyingsubmarinepipelineisatpresentthelongestoneofthekindinChina.Itisabout4kilometerslongfromWeihaiCitytoLiugongIslandinShandongprovince.Ittookonlyhalfayeartodesignandconstructit.Theprojectwasofahigheconomicefficiencyandsomepracticalexperienceswereachieved.Inthispaperageneralintroductiontothedesignandconstructionofthispipelineispresentedandsuchproblemsasthestabilityofthepipelineinverysoftclay,designofcurvedslideforlaunchingandestimationofdraggingforcesareexpounded.
简介:Accordingtothequalitycontrolneedsoffillingconstructionofthefacerockfilldam,bymeansoftheglobalsatellitepositioningtechnology,thewirelessdatacommunicationtechnology,thecomputertechnologyandthedataprocessingandanalysistechnology,andintegratingwiththerollercompactionmachine,theGPSreal-timesupervisorysystemisdevelopedinthispaper.Itcanbeusedtoreal-timelysupervisetheconstructionqualityoftherollercompactionforfillingengineering.ThecompositionandappliedcharacteristicsofGPSsystem,andthekeytechniqueproblemandsolutionofthedesignarediscussed.TheheightaccuracyofGPSsystemisanalyzedandthepreliminaryapplicationisintroduced.