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20 个结果
  • 简介:汽缸束启用的传输技术能够为制造工厂传输氧或氮等气体。它具有安全、符合人体工程学和环保等特点,并且这些特点以一种通俗易懂的设计创新形式表达出来。中央控制面板、符合人体工程学的内容指示器和防篡改密封及安全冲击防护,这些内容都是专门针对用户设计的。汽缸束可以堆叠,而且设有颜色编码,通过各种鲜明的色彩来区分各种类型的气体。

  • 标签: BUNDLE 人体工程学 气缸 传输技术 设计创新 控制面板
  • 简介:Let(M,g)beann-dimensionalRiemannianmanifoldandT*MbeitscotangentbundleequippedwiththerescaledSasakitypemetric.Inthispaper,wefirstlystudytheparaholomorphypropertyoftherescaledSasakitypemetricbyusingsomecompatibleparacomplexstructuresonT*M.Second,weconstructlocallydecomposableGoldenRiemannianstructuresonT*M.FinallyweinvestigatecurvaturepropertiesofT*M.

  • 标签: 调整型 度量 余切丛 RIEMANN流形 黎曼结构 可分解
  • 简介:在传统的MacOS中,数据在磁盘上最基本的保存方式是文件,无论它是一个应用程序或是一个文档,文件在Finder程序中都被显示为一个图标。在较早的时候,McaOS中的大多应用程序还比较简单,通常一个软件只是由一个应用程序文件和少量的附加文件构成。但随着软件规模的不断扩大,这种设计规范就很容易被打破。但对于大多数软件用户而言,“一个应用程序=一个图标”的形式是最容易被接受的。他们根本不希望看见一堆无法理会的零散文件(Windows给我们留下了许多惨重的教训)。

  • 标签: MAC OS X软件 BUNDLE 软件打包
  • 简介:Cochlearouterhaircells(OHCs)areinvolvedinamechanicalfeedbackloopinwhichthefastsomaticmotilityofOHCsisrequiredforcochlearamplification.Alternatively,amplificationisthoughttoarisefromactivehairbundlemovementsobservedinnon-mammalianhaircells.Wemeasuredthevoltage-evokedhairbundlemotionsinthegerbilcochleatodetermineifsuchmovementsarealsopresentinmammalianOHCs.TheOHCsdisplayedalargehairbundlemovementthatwasnotbasedonmechanotransducerchannelsbutbasedonsomaticmotility.Significantly,bundlemovementswereabletogenerateradialmotionofthetectorialmembraneinsitu.Thisresultimpliesthatthemotility-associatedhairbundlemotionmaybepartofthecochlearamplifier.

  • 标签: 径向运动 外毛细胞 放大器 耳蜗 哺乳动物 机械反馈
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  • 简介:Permanentpacemakerimplantisacommonlyperformedcardiacprocedurefortreatmentofbradycardiaorconductionsystemabnormality.Withconventionalrightventricular(RV)pacingaleadisimplantedattheRVapexorontheRVseptum.However,RVapicalorRVseptalpacingcausesiatrogenicleftbundle-branchblockandventriculardyssynchronyandcanleadtoadversecardiacremodeling,apacing-mediatedcardiomyopathy,andcongestiveheartfailure.Alternatively,permanentHis-bundlepacingusestheintrinsicrapidly-conductingHis-Purkinjesystemtoactivatetheventricle,therebymaintaining(orsometimesevenrestoring)ventricularsynchrony.ManypatientsmayderivebenefitfrompermanentHis-bundlepacing.

  • 标签: His-bundle PACING VENTRICULAR DYSSYNCHRONY cardiac RESYNCHRONIZATION
  • 简介:这研究的目的是调查形态学,在锦鸡儿属植物arborescens的种子梗的光合的产品的传播线路打。在在flowering以后的各种各样的阶段并且用扫描电子显微镜学在种子成熟评估种子梗的角色。我们发现成熟种子梗主要由容器,sclerenchymatous房间和parenchymatous房间组成了。伸长的房间在在种子梗和种子之间的连接形成了一枚戒指,并且一大空被sclerenchymatous房间的二层在内部种子生产,它工作支撑种子生长。在戒指的中心的洞在当种子成熟,扩大的种子开发,和洞的一个早阶段期间被关上。为材料运输有二条线路,它从种子梗开始了:从种子上衣的到胚胎,和直接进入胚胎的另外一个。容器,充满种子梗,是为由种子的营养素的吸收的小径。容器浓密地在种子梗被包装,并且容器的房间墙的第二等的变厚被网络线变厚描绘,当在种子以内的容器的房间墙的第二等的变厚被螺丝钉线变厚描绘时。容器的词法特征对它的功能适应。

  • 标签: 锦鸡儿属植物 种子成熟 连接 上衣 扫描电子显微镜 脉管
  • 简介:这研究的目的是为把用不同技术比较修改Nesbit过程的结果神经与血管的捆(NVB)到正确腹的先天的阴茎弯曲(CPC)。捆在21用中间、侧面的解剖技术被动员(组1)并且13(组2)病人分别地。在中间的技术,uck's扁带在阴茎的背面的方面被打开,深背面的静脉在弯曲的最突出的地点被移开,钻石形的tunicaalbuginea(TA)从阴茎的中线被切除。在侧面的技术,捆在5和7o’在尿道上面用uck's扁带的一个纵的侧面的切口被动员;经由一条双边的途径的钟位置。弯曲的本地化和度用联合intracavernous注射刺激测试或从patients’被评估;相片。弯曲的吝啬的耐心的年龄和度在组之间是类似的。吝啬的操作时间为组2是更长的(P=0.01)。在组1,九个病人(42.8%)要求了一钻石切除,(47.6%)10要求了二钻石切除,(9.5%)二要求了超过二切除;在组2,六个病人(46.2%)要求二钻石切除和七个病人(53.8%)要求了超过二钻石切除(P=0.019)。在阴茎弄短的差别,阴茎弄直和龟头的麻木不是统计上重要的。为修改Nesbit过程的捆的中间的解剖减少TA的钻石形的移动的数字并且因此弄短与它的侧面的对应物比较的操作时间。

  • 标签: 弯曲度 先天性 阴茎 患者 比特 解剖
  • 简介:摘要VAP的发生增加了住院患者的病残率和病死率,延长了住院时间,加大了住院花费,预防VAP的发生应注重管理机制,VAPbundle护理执行品管圈,从管理着手。

  • 标签: VAP 品管圈 预防 管理
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  • 简介:Theeffectsoflay-uplayernumbersonlaminatedbamboobundleboard’sphysicalandmechanicalpropertiesandconnectionperformancewereanalyzed.Theresultsshowthatundertheconditionsofsamelayernumbers,alongwiththeincreaseofthelay-updirections,thebendingstrength,bendingmodulus,compressionstrengthandhorizontalshearstrengthofthelaminatedboardshowedadownwardtrend,whileusingnon-singledirectionlay-upstructure,theboard’swaterproofpropertywaslowerthanthatofsinglelay-upboard,buttheboard’sconnectionperformancewasraised.Therefore,intherealapplication,withtheconditionofguaranteeingthemechanicalpropertiesoftheboardtomeetoperatingrequirements,thelay-updirectionsshouldbeincreasedtoimprovetheboard’sconnectionperformanceandtoincreasetheboard’ssafety.

  • 标签: BAMBOO BUNDLE VENEER LAMINATED BOARD mechanical
  • 简介:AbstractPurpose:To avoid potential problems of double-bundle anterior cruciate ligament reconstruction (ACLR), various modifications have been reported. This study analyzed a novel technique of modified double-bundle (MDB) ACLR without implant on tibial side in comparison to single-bundle (SB) ACLR.Methods:Eighty cases of isolated anterior cruciate ligament tear (40 each in SB group or MDB group) were included. SB ACLR was performed by outside in technique with quadrupled hamstring graft fixed with interference screws. In MDB group, ACLR harvested tendons were looped over each other at the center and free ends whipstitched. Femoral tunnel was created by outside in technique. Anteromedial tibial tunnel was created with tibial guide at 55°. The anatomic posterolateral aiming guide (Smith-Nephew) was used to create posterolateral tunnel. With the help of shuttle sutures, the free end of gracillis was passed through posterolateral tunnel to femoral tunnel followed by semitendinosus graft through anteromedial tunnel to femoral tunnel. On tibial side the graft was looped over bone-bridge between external apertures of anteromedial and posterolateral tunnel. Graft was fixed with interference screw on femoral side in 10° knee flexion. International Knee Documentation Committee (IKDC), Tegner score, Pivot shift and knee laxity test (KLT, Karl-Storz) were recorded pre- and post-surgery. At one year magnetic resonance imaging (MRI) was done. Statistical analysis was done by SPSS software.Results:Mean preoperative KLT reading of (10.00 ± 1.17) mm in MDB group improved to (4.10 ± 0.56) mm and in SB group it improved from (10.00 ± 0.91) mm to (4.80 ± 0.46) mm. The mean preoperative IKDC score in MDB group improved from (49.49 ± 8.00) to (92.5 ± 1.5) at one year and that in SB group improved from (52.5 ± 6.9) to (88.4 ± 2.6). At one-year 92.5% cases in MDB group achieved their preinjury Tegner activity level as compared to 60% in SB group. The improvement in IKDC, KLT and Tegner scale of MDB group was superior to SB group. MRI confirmed graft integrity at one year and clinically at 2 years.Conclusion:MDB ACLR has shown better outcome than SB ACLR. It is a simple technique that does not require fixation on tibial side and resultant graft is close to native ACL.

  • 标签: Anterior cruciate ligament reconstruction Fracture fixation Tibia
  • 简介:BackgroundLeftbundlebranchblock(LBBB)resultsinanalteredpatternofleftventricular(LV)activationandsubsequentcontraction.CardiacsynchronyandcardiacfunctionaredeterioratedbyLBBB.However,theeffectofLBBBhistoryonprogressiveheartdysfunctionandclinicalefficacyofcardiacresynchronizationtherapy(CRT)insuchpatientsarenotclear.InthisstudyweexploretheclinicalefficacyandpredictorofcardiacresynchronizationtherapyinLBBBheartdysfunction.MethodsTwenty-sevenLBBBpatientswithsevereheartfailureweretreatedwithCRT.Twenty-sixLBBBpatientswithoutCRTservedascontrol.During6monthsfollow-up,ECG,plasmaNT-proBNPandechocardiogramindexesweremeasured.ResultsComparedwithbaseline,NYHAfunctionalclassof23patients(85.2%)wasimprovedinCRTgroup.Comparedwithbaselineandcontrol,QRSduration(QRSd)wassignificantlymorenarrow(P=0.023,P=0.019),NT-proBNPwassignificantlylower(P=0.011,P=0.009),ventricularseptaltoleftventricularposteriorwalldelaytimeandleftventriculardyssynchronyindex(Ts-SD)weresignificantlyworse(P<0.05);leftventricularejectionfraction,leftventricularend-systolicvolume,mitralregurgitationareaweresignificantlyimprovedinCRTgroup(P<0.05).whentheLBBBhistorywas≥2yearsandQRSd≥155ms,thesensitivityandspecificityofCRTsuper-responsewere53.4%and85.6%respectively.ConclusionsCRTcanimprovethesynchronizationandhemodynamicofLBBBpatientswithheartdysfunction,theLBBBhistory≥2yearsandQRSd≥155msareoneoftheCRTsuper-responsepredictors.

  • 标签: 心脏功能 临床疗效 预测因子 功能障碍 传导阻滞 再同步
  • 简介:Leftbundlebranchblock(LBBB),traditionallyviewedasanelectrophysiologicabnormality,isincreasinglyrecognizedforitseffectsonhemodynamicsandpatient’sprognosis[1].Exercisenuclearstudiesfrequentlyshowreversibleperfusiondefectsintheabsenceofobstructivecoronaryarterydisease[2]andsomepatientswithintermittentLBBBdevelopanginacoincidentwiththeonsetofLBBB[3].WereportacaseofintermittentLBBBwithabnormalstresstechnetium99mTcsingle-photonemissioncomputedtomography(SPECT)studyandnormalcoronaryarteryangiography.

  • 标签: 左束支传导阻滞 冠状动脉狭窄 间歇性 病例报告 心肌缺血 发射型计算机断层
  • 简介:摘要:目的:研究提高1小时bundle执行率对脓毒症休克患者生存率造成的影响。方法:将2021年我科收治的201例脓毒症患者作为研究的对象,并对比2022年5-8月收治的115例脓毒症患者的1小时bundle执行情况。通过将临床当中对bundle执行率的应用情况进行分析,并且对bundle执行率较低的原因阐述,并提出一定的解决策略。结果:通过对我院收治的脓毒症患者应用1小时bnudle的情况分析,其中完全执行1小时bnudle的患者数量仅有34例,占总样本的16.9%,治疗过程中死亡患者数量114例,存活数量87例,存活率为43.3%,死亡率为56.7%。结论:由于现阶段科室当中存在一定的问题,导致完全1小时bnudle执行率相对较低,从而导致脓毒症休克患者生存率相对较低,因此需要改善科室当中应用1小时bnudle的执行率,提升患者的生存概率。

  • 标签: 1小时bnudle 脓毒症休克 执行率
  • 简介:ObjectiveTocomparetheacutehemodynamiceffectsoffivedifferentpacingmodesinpatientswithcardiacfunctionNYHAclassⅠtoⅡwithoutbundlebranchblock(BBB).MethodsThisstudyincluded12patients(SSS7,Ⅲ°AVB5)undergoingpacemakerimplantation.Rightventricularapex(RVA),rightventricularoutflowtract(RVOT),rightventricularbifocal(RV-Bi),leftventricularbase(LVB)andbi-ventricular(Bi-V)pacingat60-80ppmweredoneinVVImodepriortoimplantationofDDDpacemaker.Thecardiacindex(CI),meanpulmonaryarterypressure(mPAP)andpulmonarycapillarywedgepressure(PCWP)weremeasuredwithSwan-Ganzthermodilutioncatheterafter5minutesofeachpacingmode.Results(1)ComparingtopacingatRVA(CI:2.41±0.38L/minperm2,PCWP:16.7±3.3mmHg),theCIincreasedandthePCWPdecreasedsignificantlyinpacingatRVOT(CI:2.63±0.46,PCWP:13.8±2.3),LVB(CI:2.78±0.52,PCWP:14.4±3.1),RV-Bi(CI:2.83±0.57,PCWP:12.8±2.5)andBi-Vpacing(CI:2.

  • 标签: MULTI - SITE CARDIAC pacingHemodynamics
  • 简介:摘要目的调查ICU护士对脓毒症一小时bundle的知信行现状及影响因素,同时了解临床上脓毒症一小时bundle执行延迟可能的原因。方法便利抽取ICU护士为研究对象,采用自行设计的问卷调查ICU护士的一般资料、对脓毒症一小时bundle知信行的现状,以及可能导致脓毒症bundle延迟的原因。描述性统计ICU护士的一般情况、知识需求与来源现状,单因素方差、线性回归分析脓毒症bundle知信行的影响因素。结果共调查了全国17个省市,1521名ICU护士。脓毒症一小时bundle中知识维度得分为(9.57±2.70)分,信念维度得分为(27.96±5.35)分,行为维度得分为(53.04±6.90)分,总分均值为(90.58±10.60)分。单因素方差分析显示,不同年资、学历及能级的护士在知识、信念和行为得分上存在显著差异(P<0.05)。临床上导致bundle延迟的原因主要是取药不及时、不能及时接到通知等。结论ICU护士对脓毒症一小时bundle知识、信念、行为总体状况较好,但尚存在一些不足。应加强理念的更新,对于经验少、学历低的护士是重点培训对象。

  • 标签: ICU护士 脓毒症 集束化治疗 知信行
  • 简介:摘要目的调查临床医生在治疗脓毒症3.0定义及诊断标准下的重症监护病房(ICU)脓毒症患者时,执行2018年"拯救脓毒症运动"(SSC)更新的1 h集束化治疗(1 h Bundle)的依从性,并分析其对患者预后的影响。方法采用多中心前瞻性观察性队列研究,选择2019年1月至2020年12月资阳市第一人民医院、资阳市人民医院、雁江区人民医院收治的符合脓毒症3.0定义及诊断标准的153例ICU患者,其中95例完全执行1 h Bundle的患者为Bundle依从组,58例未完成1 h Bundle的患者为Bundle未依从组。统计3家医院的病原菌分布情况和感染部位,以及1 h Bundle依从性执行情况和28 d生存情况。采用单因素分析影响两组脓毒症患者预后的危险因素;采用Cox回归模型绘制28 d生存曲线,评估两组脓毒症患者生存情况。结果3家医院153例脓毒症患者病原菌检出率为61.44%(94/153),以革兰阴性菌为主,占79.79%(75/94);感染部位前3位分别为呼吸系统、胃肠道和泌尿系统,分别占32.0%、28.1%、18.3%。3家医院能完全执行1 h Bundle的患者占62.09%(95/153),1 h Bundle中执行较差的指标为1 h血液微生物培养〔占77.78%(119/153)〕和1 h抗菌药物的应用〔占79.74%(122/153)〕。Bundle是否依从两组患者基线指标比较差异均无统计学意义。单因素分析显示,主要预后指标:Bundle依从组28 d生存率明显高于Bundle未依从组〔80.00%(76/95)比62.06%(36/58),χ2=6.447,P=0.014〕;次要评价指标:Bundle依从组6 h和24 h平均动脉压(MAP)均明显高于Bundle未依从组〔mmHg(1 mmHg=0.133 kPa):78.22±11.25比69.86±14.04,79.78±11.45比75.35±12.90〕,Bundle依从组总住院时间中位数较Bundle未依从组明显延长〔d:13(17)比6(11),P<0.05〕。二元Logistic回归分析显示:6 h和24 h MAP是影响脓毒症患者预后的危险因素〔优势比(OR)和95%可信区间(95%CI)分别为1.064(0.994~1.102)、1.032(1.003~1.063),均P<0.05〕。结论资阳市3家医院ICU脓毒症患者1 h Bundle依从率为62.09%,依从性仍有待提高,特别是经验性抗菌药物使用和抗菌药物使用前留取微生物培养两项的依从性较差。Bundle依从组28 d生存率明显高于Bundle未依从组,说明1 h Bundle方案有助于改善脓毒症患者预后。

  • 标签: 脓毒症3.0 1 h脓毒症集束化治疗 依从性 前瞻性队列研究