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77 个结果
  • 简介:Thisarticleexplorespopulationlong-termbalanceddevelopmentfornationaldefenseaccordingtothestrategicgoalssetatthe18thNationalCongressoftheCommunistPartyofChina.Threemajorissuesarediscussed.Firstly,theconceptandconnotationofthelong-termequilibriumdevelopmentofnationaldefensepopulationaredefined,inwhichpopulationlong-termequilibriumisequaltopopulation'longtermsafety'includingqualitybalance,quantitybalanceandpopulationstructureequilibrium.And'quantityequilibrium'needstobeconsideredinbothabsoluteandrelativeterms.Secondly,the'non-equilibrium'situationofnationaldefensepopulationisexaminedfromtheperspectiveofqualityandquantity.Thirdly,policysuggestionsinpromotingthenationaldefensepopulationequilibriumareproposedwithregardtopopulationregulation,humanresourcedevelopmentandsocialsecurity.

  • 标签: 人口结构 均衡发展 国防 质量平衡 人力资源开发 中国共产党
  • 简介:LongtimebehaviorofdegenerateequationswiththenonlinearityofpolynomialgrowthofarbitraryorderonthewholespaceRNisconsidered.Byusing-trajectoriesmethods,weprovedthatweaksolutionsgeneratedbydegenerateequationspossessan(L2U(RN),L2loc(RN))-globalattractor.Moreover,theupperboundsoftheKolmogorovε-entropyforsuchglobalattractorarealsoobtained.

  • 标签: 退化抛物方程 研发 柯尔莫哥洛夫 退化方程 全局吸引 非线性
  • 简介:AIM:Todeterminethelong-termeffectsofselectivelasertrabeculoplasty(SLT)onintraocularpressure(IOP)andthenumberofmedicationsusedupto5yfollowingtreatmentinglaucomapatientsreceivingmaximallytoleratedmedicaltherapy(MTMT).·METHODS:TheWillsEyeHospitalGlaucomaResearchCenterretrospectivelyreviewedthechartsofglaucomapatientswhounderwentSLTafterreceivingMTMT.Eyesthatdidnotachievetheirtargetpressurewithin3mofollowingSLTwereexcludedfromthestudy.ChangesinmeanIOPandnumberofglaucomamedicationsusedwereanalyzedat1,3,and5yfollowingSLT.·RESULTS:Seventy-fiveeyesof67patientswereincludedinthestudy.FifteeneyesthatreceivedSLTfailedtoachievetheirtargetpressurewithin3moandwereexcludedfromthestudy.Theaveragefollow-uptimewas37.4mo(±14.4).MeanIOPwassignificantlyreduced1yaftertreatment(P=0.005).Itwasalsoreduced3,5yaftertreatmentwithoutreachingstatisticalsignificance(P=0.20andP=0.072,respectively).Therewasasignificantdecreaseinmeannumberofmedicationsused1,3,5yaftertreatment(P<0.001,P<0.001,andP=0.039,respectively).Inthespanof5y,2eyes(2.7%)underwentrepeatSLT,7eyes(9.3%)underwentglaucomasurgeryandanadditional3eyes(4.0%)underwentboth.·CONCLUSION:SLTsignificantlyreducedthenumberofglaucomamedicationsused5yfollowingtreatmentinglaucomapatientsreceivingMTMT.SLTmaydelayoperating-roomsurgery.

  • 标签: 选择激光 trabeculoplasty 长期 intraocular 压力 使用的药数 最大地容忍的医药治疗 绿内障
  • 简介:有弹性的阻抗(EI)倒置广泛地在工业被使用了估计有点有弹性的参数区分岩性学或甚至液体。然而,常规三术语的有弹性的阻抗公式甚至与在地震数据的细微随机的噪音是不稳定的,这被发现,由于有弹性的参数的性恶的系数矩阵。我们介绍了二术语的Fatti有弹性的阻抗倒置方法,它比常规三术语的有弹性的阻抗倒置更柔韧、精确。在我们的方法,密度被忽略增加倒置矩阵的坚韧性。而且,P阻抗和S阻抗,对随机的噪音不太敏感,被转换而不是VP和V在常规三术语的有弹性的阻抗的S。使倒置更稳定,我们把K价值的范围定义为限制。这个方法能获得答应的合成测试主张与低SNR(信号噪音比率)结果地震数据。用在一个2D线数据的方法的申请,我们完成了,并且VP/VS节,完美地匹配钻的井,在水库预言显示方法的潜力。

  • 标签: 反演方法 弹性阻抗 弹性参数 估计 随机噪声 地震数据
  • 简介:AIM:Toevaluatethelongtermclinicalresultsofmechanicalno-alcohol-assistedlaserepithelialkeratomileusis(LASEK)versusstandardphotorefractivekeratectomy(PRK)forlow-moderatemyopia.METHODS:Twenty-fiveeyestreatedwithLASEKandtwenty-fiveeyestreatedwithPRKwereevaluatedwithameanfollow-updurationof60mo.Mechanicalseparationoftheepitheliumwasperformedwithbluntspatulaandwithoutapplicationofalcohol.LaserablationwasperformedwiththeMEL-70excimerlaser.Allpatientswereexamineddailyuntilepithelialclosure;at1,3,6,and12mo,andeveryyearsubsequently.Mainoutcomemeasureswereuncorrecteddistancevisualacuity(UDVA),correcteddistancevisualacuity(CDVA),manifestrefraction,haze,efficacyandsafetyindexes.RESULTS:Twenty-oneeyesand22eyescompletedfollow-upof60moinLASEKandPRKgrouprespectively.Manifestrefractionat60mofollow-upwas-0.01and0.26inLASEKandPRKgrouprespectively.IntheLASEKgroupmeanUDVAandmeanCDVAafter60mowere20/22and20/20respectively(P>0.01).InthePRKgroupmeanUDVAandmeanCDVAat60mofollow-upwere20/20and20/20after60mo(P>0.01).Theefficacyindexeswere0.87and0.95,andthesafetyindexeswere1.25and1.4respectivelyforLASEKgroupandPRKgroup.CONCLUSION:BothstandardPRKandno-alcoholLASEKoffersafeandeffectivecorrectionoflow-moderatemyopiainthelongtermwithoutanystatisticallysignificantdifferencebetweenthetwogroups.

  • 标签: ALCOHOL laser EPITHELIAL KERATOMILEUSIS MYOPIA PHOTOREFRACTIVE
  • 简介:Thecomplexityoftheloadsactingontheoffshorewindturbines(OWTs)structuresandthesignificanceofinvestigationonstructuredynamicsareexplained.Testresultsobtainedfromascaledwindturbinemodelarealsosummarized.Themodelissupportedonmonopile,subjectedtodifferenttypesofdynamicloadingusinganinnovativeoutofbalancemasssystemtoapplycyclic/dynamicloads.Thetestresultsshowthenaturalfrequencyofthewindturbinestructureincreaseswiththenumberofcycles,butwithareducedrateofincreasewiththeaccumulationofsoilstrainlevel.Thechangeisfoundtobedependentontheshearstrainlevelinthesoilnexttothepilewhichmatcheswiththeexpectationsfromtheelementtestsofthesoil.Thetestresultswereplottedinanon-dimensionalmannerinordertobescaledtopredicttheprototypeconsequencesusingelementtestsofasoilusingresonantcolumnapparatus.

  • 标签: 风电机组 动态行为 海上 支座 结构动力学 风力涡轮机
  • 简介:我们为f(T)严肃理论在宇宙论的限制的精确上探索SandageLoeb(SL)测试的影响。因为它在远类星体的系列在Lyman-森林里测量redshift飘移,SL测试是对当前的宇宙论的观察的重要补充,盖住2z的redshift沙漠5。避免数据矛盾,当模仿30的基准的模型嘲笑SL测试数据,我们基于当前的联合观察数据使用最好合适的模型。我们确定为f(T)严肃理论的参数评价上的这些SL测试数据的影响。二个典型f(T)模型被考虑,幂定律模型f(T)PL和指数形式的模型f(T)终止。结果证明SL测试罐头有效地打破存在在在另外的宇宙论的观察的今日的事密度m和小瘤常数H0之间的强壮的退化。为考虑f(T)模型,SL测试的30年的观察能极其改进m和H0的限制精确,但是不能有效地改进模型参数的限制精确。

  • 标签: 红移 漂移 测试数据 基准模型 重力 观测数据
  • 简介:定积分在《高等数学》中占有重要的地位,它具有十分丰富的内容,有关定积分的计算方法是“多姿多彩”,令人“眼花缭乱”,本文就利用“定积分是一个常数”这个简单结论,来分析它在定积分中解题时的技能与技巧,以资培养学生的解题能力。

  • 标签: 定积分 常数 连续函数
  • 简介:OBJECTIVE:Tosystematicallyevaluatethelong-termeffectandsafetyofXingnaoKaiqiaoneedlingmethodinischemicstroketreatment.DATARETRIEVAL:Weretrievedrelevantrandomandsemi-randomcontrolledtrialsthatusedtheXingnaoKaiqiaoneedlingmethodtotreatischemicstrokecomparedwithvariouscontroltreatmentssuchasconventionaldrugsorotheracupuncturetherapies.SearcheddatabasesincludedChinaNationalKnowledgeInfrastructure,WeipuInformationResourcesSystem,WanfangMedicalDataSystem,ChineseBiomedicalLiteratureDatabase,CochraneLibrary,andPubMed,fromMay2006toJuly2014.SELECTIONCRITERIA:Twoauthorsindependentlyconductedliteraturescreening,qualityevaluation,anddataextraction.ThequalityofarticleswasevaluatedaccordingtotheCochraneReviewers’Handbook5.1,andthestudywascarriedoutusingCochranesystemassessmentmethods.RevMan5.2wasusedformeta-analysisoftheincludedstudies.MAINOUTCOMEMEASURES:Mortalityrate,recurrencerate,anddisabilityratewereobserved.RESULTS:Ninerandomizedandsemi-randomizedcontrolledtrialstreating931casesofischemicstrokewereincludedinthisreview.Meta-analysisresultsshowedthattherewerenosignificantdifferencesinmortalityreduction(riskratio(RR)=0.58,95%confidenceinterval(CI):0.17–1.93,Z=0.89,P=0.37)orrecurrencerate(RR=0.55,95%CI:0.18–1.70,Z=1.04,P=0.30)ofischemicstrokepatientsbetweentheXingnaoKaiqiaoneedlingandcontroltreatmentgroups.However,theXingnaoKaiqiaoneedlingmethodhadatendencytowardshigherefficacyinmortalityreductionandrecurrencerates.TheXingnaoKaiqiaoneedlingmethodwassignificantlybetterthanthatofthecontroltreatmentinreducingdisabilityrate(RR=0.51,95%CI:0.27–0.98,Z=2.03,P<0.05).CONCLUSION:TheXingnaoKaiqiaoneedlingmethodhasabettereffectthancontroltreatmentinreducingdisabilityrate.Thelong-termeffectofXingnaoKaiqiaoneedlingagainstischemicstrokeisbetterthanthatofc

  • 标签: 信息资源系统 针刺法 脑卒中 治疗 缺血 中风
  • 简介:UsingtheThreeRiversHeadwatersAreainChinaasapilotproject,thisstudyhasinvestigatedtheeffectivenessoftheecologicalcompensationpoliciesandpracticeshaveimplementedinthisareaoverthepastdecade.Majorissueshaveencounteredduringtheimplementationprocess,includingtheformidableextentofgrasslanddegradation,thecomprehensivenatureofmeasuresneededtorestoretheecosystem,andthetimeneededtoachievethesegoals.Theseissuesarediscussed,andremedialmeasuresproposed.Theyinclude:draftingregulationsgivingtheThreeRiversHeadwatersAreaecologicalprotection,settingasidefundsforecologicalcompensationandestablishinganationalpark,usinganecologicalassetsaccountingmethodologyforfinancialreportingpurposes,designingascience-basedapproachforconductingthelivestockhusbandrypopulationmigration,enhancingtheoversightcapacityforallaspectsoftheecologicalcompensationprocess,andmakinganoverallplantopromotetheharmoniousdevelopmentofthisareatogetherwithotherregionsinQinghaiProvince.

  • 标签: ECOLOGICAL compensation ECOLOGICAL ASSETS accounting national
  • 简介:BackgroundPrematureventricularcontractions(PVCs)arefrequentlyseeninchildren.However,therearelesssystematicandlongerfollowing-upstudiesexaminingtheprognosisofPVCsinchildren.TheaimofthisstudywastoevaluatethemediumtolongtermprognosisofPVCsinchildhoodandwhetherthereisadifferentialprognosisindifferentprimarydiseasesofPVCs.MethodsThisstudyreviewedthedataof106pediatricpatients(49F/57M,7.5±3.8years)seenattheAffiliatedHospitalofQingdaoUniversitywiththediagnosisofPVCsbetween1999and2005.Dataondemographics,clinicalpresentation,laboratorytests,andechocardiogramsofpatientswereextractedfromtheavailableclinicalrecords.ResultsAtotalof35(33.0%)childrenpresentedwithPVCsduetomyocarditis,7(6.6%)duetocardiomyopathies,7(6.6%)duetomitralvalveprolapse(MVP),10(9.4%)duetooperationforcongenitalheartdisease(O-CHD),16(15.2%)duetoleftventricularfalsetendons(LVFT),and31(29.2%)duetounknowncause.HolterdidnotshowPVCsduringfollow-upperiodin100%ofmyocarditispatients,57%ofcardiomyopathypatients,71%ofMVPpatients,60%ofO-CHDpatients,88%ofLVFTpatients,87%ofunknowncausepatients.ThePVCsdisappearedin93%ofpatientswhodidnotuseanti-arrhythmicdrugsandin76%ofpatientswhousedantiarrhythmicdrugs.Therewasnoasignificantdifferenceinprognosisbetweenmyocardialnutritioncombinedwithintravenousinjectionofimmunoglobulin(IVIG)groupandpropafenonegroup.ConclusionsPVCscausedbydifferentprimarydiseaseshasafavorableprognosisinchildren.Usually,thePVCswillreduceevendisappearduringfollow-up.ThepatientswithPVCsduetomyocarditisshouldbepreferredusemyocardialnutrientcombinedwithIVIG.

  • 标签: 预后 室性 随访 PVCs 抗心律失常 先天性心脏病
  • 简介:本文通过三个观察层面,对新刑事诉讼法实施以来庭前会议的运行现状进行实证分析,全景透视现状,发现庭前会议总体适用率低;通过质效评估,发现庭前会议功能的有限发挥;通过程序考察,发现庭前会议程序运行的多重困境。作者从制度设计、制度行动以及制度环境三个维度挖掘现象背后的深层原因:立法探索性规定,存有诸多缺陷;适用主体消极应对,存在选择性偏好;庭审中心主义理念存在缺失。针对庭前会议的多重困境,以审判中心为指导.对庭前会议制度进行重构。

  • 标签: 庭前会议 实证分析 审判中心
  • 简介:在这份报纸,我们学习稳定性局部地旋转地对称(LRS)Bianchi我在通过阶段空间分析的f(T)重力的宇宙模型。我们假设f(T)严肃能被当作象完美的液体一样表现的有效黑暗精力,并且建议在无压力的物质以及黑暗精力之间有相互作用。我们构造方程的相应自治系统检查模型的稳定性因为非幽灵,真空和幽灵分阶段执行。批评的点作为与相比在幽灵阶段仍然保持更稳定,这被结束非幽灵和真空盒子。最后,我们通过一些宇宙论的参数讨论模型的宇宙论的行为。

  • 标签: 相空间分析 宇宙模型 重力 各向异性 稳定性 旋转对称
  • 简介:摘要通过了解当前国内石油天然气钻井技术发展现状,及开拓国外市场的需求,针对国内各钻井公司大量使用的F-1600泥浆泵,从技术性、经济性等方面进行论证,提出改造为F-1600HL高压泥浆泵的方案。

  • 标签: 石油天然气 现状 国外市场 技术性 经济性 F-1600HL
  • 简介:9月24日,由索尼中国专业系统集团主办的第四届“大师之门”PMW-F55/F5高端沙龙在北京电影学院举行。这是索尼专业4K全画幅摄影机的年度盛事之一,旨在通过影视制作、纪录片、4K现场制作等应用领域的行业大师分享创作理念,并通过层次丰富的灯光和造型古典的拍摄区与现场机器的实际操作、视频的观摩体验,

  • 标签: 索尼 北京站 F55 北京电影学院 专业系统 影视制作