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57 个结果
  • 简介:AbstractIntracapsular fractures of the proximal femur are one of the most common fractures of the lower limbs. Most cases require osteosynthesis with suitable implants, and intraoperative positioning of the patient on the fracture table is a prerequisite to facilitate fracture manipulation, traction, reduction and fluoroscopy assessment. However, positioning the limbs of bilateral above-knee amputees for internal fixation of related proximal femoral fractures is a difficult task, which requires customized inventory for effective limb positioning and fracture manipulation. This study reported a rare case following a crush injury of bilateral lower limb in a road traffic accident, and described some technical tips of acute femoral neck fractures in bilateral above-knee amputation. The patient was managed with immediate guillotine amputation and later secondary wound closure followed by internal fixation of the right-sided femoral neck fracture with multiple cancellous cannulated screws.

  • 标签: Femoral neck fractures Bilateral amputee Above-knee amputation Intraoperative positioning Surgical management
  • 简介:Threekeyfactorsarediscussed,whichaffectpositioningaccuracyofrange-rangepositioningmodeandhyperbolicpositioningmode.Basedontheerrorellipticaltheory,theexpressionsofpositioningerrorandofpositioninggeometricfactorofrange-rangepositioningmodeandhyperbolicpositioningmodearederived,andthepositioningerrorandtheblindpositioningareaoftwodifferentpositioningmodesareanalyzed.Accordingtotherequirementofnavigationarea,anoptimumpositional

  • 标签: RADIO NAVIGATION range- RANGE POSITIONING MODE
  • 简介:Inthe20yearsaftertheUNEnvironmentandDevelopmentConferencein1992,theessentialissuesinrelationtosustainabledevelopmenthavebeenunsolved.Theupcoming"Rio+20"conferenceputthefocusontheshifttowardsgreendevelopment.Toachievethisrequiresthechangeofsomeideologiesthatdominatehumanactions,suchastheconceptsofwealth,welfareandsecurity,anditalsorequireidentifyingthenewpositionofnatureresources,especiallythepositionofforest.Itwaspointedoutinthepaperthatforestisthefoundationofsocioeconomicdevelopmentandconstitutesbasicwealth,basicwelfareandbasicsecurityofthewholecommunityunderthegreendevelopmentcontext.Nevertheless,itisamusttoaggressivelyinvestanddevelopgreeneconomy.Itwasalsoproposedtosetupforestrydevelopmentorganizations,investmentmechanisms,policysystemandresearch&educationsystemcompatiblewithgreendevelopment.Moreover,someforestrypoliciesthatshouldberevisedwerecombed.

  • 标签: green DEVELOPMENT position of FOREST SUSTAINABLE
  • 简介:我们在原生生物Trichomonasvaginalis的最近的调查与120.9nt的单位长度建议了DNA顺序频率,它为放的nucleosome代表顺序签名。我们现在在更高的优核质扩大了我们的观察并且在Caenorhabditiselegans在长度识别了175nt的类似的频率。在定义顺序的过程组合特征,我们发现10.5-nt频率,DNA双螺旋的顺序签名,不能为放的cross-nucleosome足够,但是提供指导栏杆便于的必需品放。我们推进把的保护nucleosome的序列并且从第5'-e识别了一个强壮的积极嘌呤(AG)坡度到第3'-e,并且当嘌呤内容断然与GC内容被相关,也听说充实nucleosome的区域作为与nucleosome免费的序列相比GC富有。顺序描述允许我们开发一个隐藏的Markov模型(唔)为译码nucleosome放的算法计算地,并且基于从C的第五个染色体的一套训练数据。elegans,我们的算法比随机的放预言了放得好的nucleosomes的60%-70%,它高是15%-20%。我们断定nucleosomes随机没在DNA序列上被放并且还与可变稳定性,DNA上的放得好的nucleosomes叶子顺序签名,并且到对面的nucleosomes的统计的放绑在不同染色体区域染色体能基于这些顺序签名计算地被译码。

  • 标签: DNA序列 定位计算 核小体 签名 线虫 隐马尔可夫模型
  • 简介:鉴于在在波浪前面构造方法的非常规的四边的格子和常规矩形格子节点之间的相对的放问题,有放方法的四个格子的具体实现问题(向量十字产品判断,角度和,交叉点,并且签署比较算法)在通常在计算机被使用的波浪前面建设,图形在这被比较并且分析纸。在在波浪前面建设在非常规的四边的格子和常规矩形格子节点之间放的亲戚的实现基于地点方法,向量十字产品判断方法更快的计算例子表演和比另外的方法精确的更多的稳定性分析。它为移植和demigration的下一步提供精确格子点属性价值。

  • 标签: 波前工程 网格节点 点定位 四边形网格 计算机图形 稳定性分析
  • 简介:摘要:在中介或先进的胰腺的头癌上改进辩解的效果。方法:手术与intermediated或先进的胰腺的头癌在26个病人被动。在癌上与一根电子横梁与intraoperative放射疗法相结合的Cholecystojejunostomy或choledochojejunostomy从1996年5月被执行到1998年5月。同时,多功能的可植入的药交货系统的导管为手术后的灌注化疗经由胃与十二指肠的动脉被插入。结果:327月后续调查建议肿瘤在治疗的功课以后在不同的度缩小了。所有病人疼痛被减轻。6月、12月、24月的幸存率是100%,93.9%和20%分别地。5个死了的病人的平均幸存时间是17.8个月。结论:这操作是很完成与中介或先进的胰腺的头癌延长病人的生活。

  • 标签: PANCREATIC CARCINOMA RADIOTHERAPY Operation PERFUSION CHEMOTHERAPY
  • 简介:Beampositioningstabilityinalaser-driveninertialconfinementfusion(ICF)facilityisavitalproblemthatneedstobefixed.Eachlaserbeaminthefacilityistransmittedinlotsofopticsforhundredsofmeters,andthentargetedinamicro-sizedpellettorealizecontrollablefusion.Anyturbulenceintheenvironmentinsuchlong-distancepropagationwouldaffectthedisplacementofopticsandfurtherresultinbeamfocusingandpositioningerrors.Thisstudyconcludedthattheerrorsoneachoftheopticscontributedtothetarget,anditpresentsanefficientmethodofenhancingthebeamstabilitybyeliminatingerrorsonerror-sensitiveoptics.Optimizationsoftheopticalsystemandmechanicalsupportingstructuresarealsopresented.

  • 标签: BEAM stability BEAM PROPAGATION sensitivity LASER
  • 简介:Theidealmodelofhumanrightslawstudiesshallbeonethatisopenandcomprehensive.Onthebasisofnormativelegalstudies,itshallpaymoreattentiontoandrespondtopolitical,economic,andsocialdevelopmentinawiderangeofhumanrightsissues.Thesestudiesshouldattempttofindpracticalsolutionstoconcreteproblems.Humanrightslawshouldbearelativelyindependentlegaldiscipline,anditshouldbeaproblem-orientedobjectofstudy.Regardingtheresearchmethodologies,humanrightslawcouldencompassallaspectsoflegalstudies,andgobeyondlegalthemtosomeextenttoencompasstheinfluenceofotherdisciplines.

  • 标签:
  • 简介:AIM:Toevaluateshort-termoutcomesfollowingintraoperativebiliarylavageforhepatolithiasis.METHODS:Atotalof932patientswhowereadmittedtotheWestChinaMedicalCenterofSichuanUniversitybetweenJanuary2010andJanuary2014andunderwentbileductexplorationandlithotomywereretrospectivelyincludedinourstudy.Thepatientsweredividedintothelavagegroupandthecontrolgroup.Relatedpre-,intra-,andpostoperativefactorswererecorded,analyzed,andcomparedbetweenthetwogroupsinordertoverifytheeffectsofbiliarylavageontheshort-termoutcomeofpatientswithhepatolithiasis.RESULTS:Amongstthepatientswhowereincluded,678patientswithhepatolithiasiswereincludedinthelavagegroup,andtheother254patientswereenrolledinthecontrolgroup.Dataanalysesrevealedthatpreoperativebaselineandrelatedintraoperativevariableswerenotsignificantlydifferent.However,patientswhounderwentintraoperativebiliarylavagehadprolongedpostoperativehospitalstays(6.67dvs7.82d,P=0.024),higherhospitalizationfees(RMB28437.1vsRMB32264.2,P=0.043),higherpositiveratesofbacterialculturesfromblood(13.3%vs25.8%,P=0.001)andbile(23.6%vs40.7%,P=0.001)samples,andincreasedusageofadvancedantibiotics(26.3%vs38.2%,P=0.001).Inaddition,inthelavagegroup,morepatientshadfever(>37.5℃,81.4%vs91.1%,P=0.001)andhyperthermia(>38.5℃,39.7%vs54.9%,P=0.001),andhigherwhitebloodcellcountswithin7daftertheoperationcomparedtothecontrolgroup.CONCLUSION:Intraoperativebiliarylavagemightincreasetheriskofpostoperativeinfection,whilenotsignificantlyincreasinggallstoneremovalrate.

  • 标签: HEPATOLITHIASIS BILIARY LAVAGE POSTOPERATIVE infection
  • 简介:Aseriesofadvantagesofsingledifference(SD)andundifferenced(ZD)modelsaregivenascomparedwitythedoubledifferenceezistinSDandZDmodels.Thereparameterizationmethodisprovidedtoresolvethisrankdefectproblembyestimatingsomecombinationsoftheunknownsratherthantheunknownsthemselves.TherepatameterizationofSDandZDfunctionalmodelsisdiscussedindetailwiththeirstochasticmodels.Thetheoreticalcomformationoftheequivalenceofundifferencedanddifferencedmodelsisdescribedinastraightforwardway.TherelationshipbetweenSDandZDresidualsisgivenandverifiedforsomespecialpurposes,e.g.researchonthestochasticalpropertiesofGPSobservations.

  • 标签: 全球定位系统 GPS SD模型 DD模型 定位误差 秩亏
  • 简介:马达的配置被设计,动态分析方程基于它的简化模型被推出。利用栅栏的一个严峻的系统被设置测试这台新马达,和理论运动原则因为马达被实验证明。脉搏波形被使用驱使马达搬到步。马达有10nm和0.6mm/s的最大的速度的一个排水量决定。它能驾驶其范围是20公里的200g滑块。放站台的一个维的精确被使用新混合压电的马达制作。原型由二台伺服马达和二台压电的马达组成,它被一台计算机自动地控制。站台的放的范围是10厘米。

  • 标签: 精密定位装置 压电电动机 设计 构造 微机械系统
  • 简介:Themainfocusisnonlinearmodel-baseddynamicpositioning(DP)controlsystemdesign.Anonlinearuniformglobalexponentialstability(UGES)observerproducesnoise-freeestimatesoftheposition,theslowlyvaryingenvironmentaldisturbancesandthevelocity,whichareusedinaproportional-derivative(PD)+feedforwardcontrollaw.Thestabilityofthisobserver-controllersystemisprovedbyintroducingaspecificnonlinearcascadedsystem.ThesimulationresultshavesuccessfullydemonstratedtheperformanceofdesignedDPcontrolsystem.

  • 标签: 非线性观测器 动力定位 前馈控制 稳定性分析 UGES 船舶
  • 简介:Insularlesionsremainsurgicallychallengingbecauseoftheneedtobalanceaggressiveresectionandfunctionalprotection.Motorfunctiondeficitsduetocorticospinaltractinjuryareacommoncomplicationofsurgeryforlesionsadjacenttotheinternalcapsuleanditisthereforeessentialtoevaluatethecorticospinaltractadjacenttothelesion.Weuseddiffusiontensorimagingtoevaluatethecorticospinaltractin89patientswithinsularlobelesionswhounderwentsurgeryinChinesePLAGeneralHospitalfromFebruary2009toMay2011.Postoperativemotorfunctionevaluationrevealedthat57patientshadnochangesinmotorfunction,and32patientssufferedmotordysfunctionoraggravatedmotordysfunction.Oftheaffectedpatients,20recoveredmotorfunctionduringthe6-12-monthfollow-up,andanadditional12patientsdidnotrecoverovermorethan12monthsoffollow-up.Followingreconstructionofthecorticospinaltract,fractionalanisotropycomparisondemonstratedthatpreoperative,intraoperativeandfollow-upnormalizedfractionalanisotropyinthestablegroupwashigherthaninthetransientdeficitsgrouporthelong-termdeficitsgroup.Comparedwiththetransientdeficitsgroup,intraoperativenormalizedfractionalanisotropysignificantlydecreasedinthelong-termdeficitsgroup.Weconcludethatintraoperativefractionalanisotropyvaluesofthecorticospinaltractscanbeusedasaprognosticindicatorofmotorfunctionoutcome.

  • 标签: 运动功能 功能障碍 扩散张量 病变 成像 皮质脊髓束
  • 简介:Ensuringahighmanufacturingtestqualityofanintegratedelectroniccircuitmandatestheapplicationofalargevolumetestset.Evenifthetestdatacanbefitintothememoryofanexternaltester,theconsequentincreaseintestapplicationtimereflectsintoelevatedproductioncosts.Testdatacompressionsolutionshavebeenproposedtoaddressthetesttimeanddatavolumeproblembystoringanddeliveringthetestdatainacompressedformat,andsubsequentlybyexpandingthedataon-chip.Inthispaper,weproposeascancellpositioningmethodologythataccompaniesacompressiontechniqueinordertoboostthecompressionratio,andsquashthetestdataevenfurther.Whilewepresenttheapplicationoftheproposedapproachinconjunctionwiththefan-outbaseddecompressionarchitecture,thisapproachcanbeextendedforapplicationalongwithothercompressionsolutionsaswell.Theexperimentalresultsalsoconfirmthecompressionenhancementoftheproposedmethodology.

  • 标签: 测试数据压缩 扫描单元 输出网络 细胞定位 外部存储器 测试应用