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500 个结果
  • 简介:Combinedwithpracticalcase,thepaperelaboratesthedevelopmentandapplicationsofmechanicaldrawing,mechanicaldesignandmanufacturingbasedonSolidworkssoftware.Bycombiningprofessionalcoursesbetweeneachother,theknowledgecontinuouslythroughdifferentcoursescanenhancestudents'enthusiasmforthecourseandmakemorereasonablearrangementforthecourses.

  • 标签: SOLIDWORKS 课程教学 机械制图 SOLIDWORKS软件 应用 机械设计
  • 简介:Thisstudyshowscrossholeseismictechnologycanoffernotonlyimagesofcrossholetomography,butalsoreflectsectionsofhighresolution.Properprocessingofcrossholeseismicreflectdataproducesahighqualitysectionbetweentwowells.Thinbeds,faultsandothergeologicphenomenacanbefoundclearlyinthissection.Sodetailedreservoirdescriptioncouldbeformedtoguidetheoilfielddevelopmentplan.Meanwhile,crossholetechnologycanbedirectlyusedtomonitortheprocessofoilfieldinjectionandenhancedoilrecovery,soithasawidescopeofusageinoilfielddevelopment.

  • 标签: CROSSHOLE THIN BED RESERVOIR DESCRIPTION development
  • 简介:Tumormetastasisisthedominantcauseofdeathincancerpatients.However,themolecularandcellularmechanismsunderlyingtumormetastasisarestillelusive.Theidentificationofproteinmoleculeswiththeirexpressionscorrelatedtothemetastaticprocesswouldhelptounderstandthemetastaticmechanismsandthusfacilitatethedevelopmentofstrategiesforthetherapeuticinterventionsandclinicalmanagementofcancer.Proteomicsisasystematicresearchapproachaimingtoprovidetheglobalcharacterizationofproteinexpressionandfunctionundergivenconditions.Proteomictechnologyhasbeenwidelyusedinbiomarkerdiscoveryandpathogeneticstudiesincludingtumormetastasis.Thisarticleprovidesabriefreviewoftheapplicationofproteomicsinidentifyingmolecularfactorsintumormetastasisprocess.Thecombinationofproteomicswithotherexperimentalapproachesinbiochemistry,cellbiology,moleculargeneticsandchemistry,togetherwiththedevelopmentofnewtechnologiesandimprovementsinexistingmethodologieswillcontinuetoextenditsapplicationinstudyingcancermetastasis.

  • 标签: 蛋白质组 肿瘤 转移 鉴定 基质辅助激光解吸电离飞行时间质谱
  • 简介:Thispapermakesanoverallintroductionofecologicalresidence(ER),anewtypeofeco-buildingandstudiesitsorigin,definition,statusquoandcharacteristics.Firstly,itshapeslikeaforestseenfromafarandlikeagardenseeninside;secondly,itsenvironmentshouldbeuptothenaturallevel;thirdly,designing,management,greenenergyutilizationandsanitationshouldbeuptoenvironmentalstandard;fourthly,thegreenecologyconceptisnotonlyappliedtobuildingbutalsorootedintheresidents.Inthispaper,thefeaturesofecologicalresidencearesummarized-coziness,health,high-efficiencyandbeauty,andprinciplesofecologicalresidenceareproposed-ecology-based,human-oriented,local-conditions-basedandsystematic.Also,techniques,problemsandvariousunderstandingsarediscussedfortheenhancementofecologicalresidence.

  • 标签: 环境保护意识 可持续发展 生态住宅 中国
  • 简介:ApplicationofSuperresolutionTechniquestoRadarImagingA.Fanrina,F.Prodi&F.Vinelli(Alenia.UnaAziendaFinmeccanica.Radar&C2Divisio...

  • 标签: RADAR IMAGING SAR ISAR ERS- 1
  • 简介:ApplicationofPRRAtotheRuralDevelopmetinChinaTXApplicationofPRRAtotheRuralDevelopmentinChinaByShenYueqinZhouGuomoYuShuquanLiMin...

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  • 简介:Wavelettransformisaparticularlyusefultooltocharacterizetran-sientphenomenasuchaswavebreaking.Inthispaper,weapplywavelettransformtothedetectionandquantificationofthebreakingwaves.Weuseanewmethodthatusesthelocalpropertiesofwavelettransformtodetectandquantifythebreak-ingwavesandgivesomenewbreakingcriteria.Bycomparingthismethodwiththeclassicmethod,wefindthatwavelettransformisveryeffectiveinthedetectionofbreakingwaves.Withwavelettransform,asetofmeasuredwindwavedataisinves-tigated.Theresultshaverevealedsomepreviouslyunknownphenomenaaboutwavebreaking.

  • 标签: WAVELET WAVE BREAKING CRITERIA
  • 简介:ANIMPROVEDBPNETWORKANDITSAPPLICATIONChenglinPeng,DiXiao,ErxinZheng(Dept.ofElecttronicEngineeringChongqingUniversitychongqing,...

  • 标签: NEURAL NETWORKS BP ALGORITHM
  • 简介:Thegeneralizedregressionneuralnetwork-onekindofRBFneuralnetwork,ischosentoconstructtheinverse-kinematicsmodelfortheshotcreterobotwhichhasredundantdegree-of–freedom.Theinverse-kinematicsmodeloftheobjectistrainedbythegenerallearningmethod.Inconstructingmodelprocess,differentpartitionmethodsistriedtodividethejointspaceanddifferentdiffusioncoefficientvaluetotraintheneuralnetwork.Theinfluenceofthespreadcoefficienttotheapproachabilityisalsostudied.Thesimulationmethodisadoptedtotesttheperformanceoftheneuralnetwork.Thesimulationresultturnsouttobesatisfactory.

  • 标签: 广义回归神经网络 喷浆机器人 仿真方法 逆运动学模型 RBF神经网络 应用
  • 简介:目的:探讨推拿结合中药和梅花磁针敷贴治疗颈椎病的特点及临床分型治疗效果。方法:对302例颈椎病患者年龄段患病情况、分型、治疗效果进行评定。结果:302例患者中治愈153例,显效131例,好转14例,无效4例,总有效率98.7%。结论:推拿结合中药和梅花磁针敷贴治疗各型颈椎病均可取得较好的疗效。

  • 标签: 推拿 治疗 中药 颈椎病 磁疗法 中医
  • 简介:Objective:Toassessthetherapeuticeffectofulinastatinonseverecraniocerebralinjuriesandtoexploreitsmechanism.Methods:Therewere87casesofseverebraininjuryinthisseriesandtheywereeithertreatedbyulinastatin(treatmentgroup,41cases)ornot(controlgroup,46cases)besidesroutinemanagements.WeestimatedC-reactiveprotein,interleukin-6,superoxidedismutase,andendothelinfromplasmasofallthecasesonthe1st,3rd,5th,and7thdayafterinjury.Results:C-reactiveproteinlevelroseonthe1stand3rddayafterinjuryinthetwogroups,butdescendedintreatmentgrouponthe5thand7thdayandwassignificantlylowerthanthatincontrolgroup(P<0.01).Nosignificantdifferencewasfoundforinterleukin-6intwogroupsduring1-5daysafterinjury,butonthe7thday,itdecreasedsignificantlyintreatmentgroupthancontrolone(P<0.01).Superoxidedismutasewashigherintreatmentgroupthancontrolonein5-7daysafterinjury(P<0.01).Endothelinelevatedonthe1stdayafterinjurybutdroppedafterwardsinthetwogroups,inwhichthelevelintreatmentgroupwaslowerthanthatincontrolone.Theincidenceofgastrointestinalhemorrhagewaslowerintreatmentgroupthancontrolone(P<0.01).Conclusions:Ulinastatinhasthefunctionofprotectingcerebraltissue,reducingtheincidenceofgastrointestinalhemorrhage,improvinghepaticandrenalfunctionandprognosis.

  • 标签: 临床应用 严重颅脑损伤 药物治疗 病理机制
  • 简介:Inthispaper,fibrouschelatingexchangerswith-N(CH2COOH)2grouphavebeenpreparedforthefirsttimebyaweaklybasicanionexchangefiber(aminatedfiber)asthestartingmaterials.ThefiberswerequiteeffectivefortheadsorptionofheavymetalionsuchasCu^2+.Inaddition,IRspectrumofthestructureoffibersconfirmsthatitisfeasibletoprepareiminocarboxylicchelatingfiberthroughdirectcarboxylationreaction.

  • 标签: 合成树脂 纤维 重金属离子吸附
  • 简介:统计生态学与分析技术和方法的前进很快发展。这份报纸在后面的方面在中国关于统计生态学做了评论:数据收集,空间并且时间模式分析,种类丰富和种类区域关系,人口动态,种类亲密关系,社区类似和社区簇分析,和社区分类。

  • 标签: STATISTICS ECOLOGY MATHEMATICAL STATISTICS
  • 简介:Timereversalisappliedtotheunderwaterspreadingspectrumcodingcommunication.Onthebaseofanalyzingthefocusingcharacteristicsofthetimereversalinunderwaterwaveguide,thetimereversalisstudiedtoovercomethewavedistortionoftheencodedsignalcausedbythemulti-patheffect.TheexperimentresearchforunderwatercodingcommunicationiscarriedoutinalabwatertankandthecorrespondingtheoreticalanalysisisalsoconductedbyBinaryPhaseShiftKeying(BPSK)encodingandBarkercodewith7chipsforthespreadingspectrumsignal.Theresultsshowthatthetimereversalcanimprovethefocusinggainandincreasetheratiooftheprincipaltothesecondlobeofthecodingsignal,andcandecreasethebiterrorrateandincreasethecommunicationdistance.

  • 标签: 时间反转 水下通讯 声音脉冲 多路效应 自适应调焦
  • 简介:Split-phase current differential protection has excellent capability of fault phase selection no matter whether the fault occurs on the same line or cross over lines.,under-reaching distance protection will not overreach when fault occurs at the end of line or the beginning of the next line after series capacitor.,The whole protection scheme for double-circuit lines on the same tower consists of split-phase current differential protection or split-phase composite distance carrier protection and zero-sequence directional comparison protection as main protection

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