闭管

The mechanical property testing shows that the seamless PLLA tubes perform excellent radial strength,which indicates that the mechanical properties of biodegradable stents made of these tubes was supposed to be excellent.PLLA and its composites were first used in preparing seamless tubes as antecedency of laser-cut biodegradable coronary stents in china.Finite element analyses of the biodegradable coronary stent model indicate the explorative design basically meets the requirement of reasonable and applicable stents.There is not such kind of research yet in domestic.Optimum laser-cuttting parameters of CO2 laser was cauculated based on experiential formula,within it,biodegradable coronary stents,especially those with complex structure would be manufacutured from seamless tubes quickly by laser microprocessing with high consistency to the design model.The processing efficiency of the CO2 laser demonstrated in experiential formula by us will play an important guiding role in manufacturing biodegradable stents by laser-processing.Our stents that ascribed to laser-cutted,slotted tube stent are proved to be biodegradable, self-expandable and good biocompatible,basically reach the international level on the aspest of manufacturing procedures and design.

研究结果表明：壳聚糖改性材料综合性能优于纯PLLA，更适合于作为可降解冠脉支架的原材料；自主设计的探索性自膨胀管状闭环型可降解冠脉支架的性能符合冠脉设计要求，设计、验证生物可降解冠脉支架模型的研究在国内还未见报道；制备的改性PLLA无缝管的力学性能优越，可通过激光切割获得冠脉支架，这是国内首次采用聚乳酸材料来制备通过激光加工出可降解冠脉支架的无缝管；二氧化碳激光器加工精度能达到加工要求，加工出来的血管支架名义设计与实测值误差小，实现了冠脉支架、尤其是带有复杂外观设计冠脉支架的快速化、规范化加工，对二氧化碳激光器加工聚乳酸材料的效果研究在国内外属于首创，获得的经验公式对日后的深入研究有重要的指导意义；制备的支架为激光切割管状闭环型冠脉支架，支架外观设计、支架加工手段、支架的性能都基本接近国际水平，支架样品符合设计的理念，可以实现自膨胀功能。

HRM has several advantages over other genotyping and scanning methods, including an inexpensive closed tube format that is homogenous, accurate and rapid.

这种检测方法因其高通量、低成本、结果准确、不受检测位点的局限，并且实现了真正的闭管操作而受到普遍的关注。

A slinky closed loop field is a type of horizontal closed loop where the pipes overlay each other.

紧身闭环领域是一种横向的闭环管位置相互重叠的类型。

By adding some fluorescence group in the reaction,we can utilize the fluorescence signal to accumulate and monitor the whole PCR process,and finally through the standard curve,we could analysis the unknown sample.As this technology has the characteristics of strong peculiar,high sensitivity,fine repetitiveness and accurateness,fast and totally closed raction,so in diagnosing animal virosis,this technology not only can measure the power and distribution of pathogen infection in the organism,and also it still has sensitive,fast,convenient characteristics.

该技术实现了PCR从定性到定量的飞跃，同常规PCR法相比，该方法特异性和可靠性更强，能实现多重反应，且采用了完全闭管检测，不需PCR后处理，有效解决PCR污染问题以及EB对试验人员的伤害；再配以相应的荧光PCR仪，使整个PCR过程实现自动化，加之具有耗时短，操作方便等特点而备受推崇，因而广泛应用于基因表达研究、转基因产品安全检测、单核苷酸多态性研究及病原体检测等领域。

Zn-diffused high power 650 nm AlGaInP/GaInP material with compressively strained multi-quantum-well active layer was fabricated. The zinc diffusion was used on the material facet in a sealed quartz tube. Photoluminescence spectra shows 175 meV blue-shift in the Zn diffusion area, which is transparent for 650 nm laser emission.

利用石英闭管法对金属有机化学气相沉积外延生长的应变量子阱650 nm AlGaInP/GaInP材料进行选择区域扩Zn，使扩Zn区域的光致发光谱的峰值蓝移达175 meV，形成对650 nm波长激光器的高透腔面，有益于减少激光器腔面光吸收，增加了激光器退化的光学灾变损伤阈值。

For example, self-cleaning by current-heating provides clean cap surface and stable FE characteristics; a capped CNT can be opened controllably.

比如清洁闭口管的表面，从而获得稳定的发射；或可控地打开闭口管的&帽子&。

Results:There were no abdominal pain and fever,jaundice faded away gradually postoperation.Biliary drainage was 300ml-1000ml/d more or less.Colour of bile changed into normal by degrees.Intra peritoneal drainage was open and the colour was light bloody.Amount of drainage dropped off day after day.Whole blood cell test, serum glutamic pyruvic transaminase,serum glutamic oxalacetic transarninase,total serum protein,serum albumin and serum globulin returned to normal in first week postoperation.Serum bilirubin,serum glutamyltranspetidase and serum alkaline phosphatase declined gradually in first week postoperation.T-tube was clipped at twelfth day postoperation.T-tube Cholangiography was clear at 24~ day postoperation.

结果：术后无上腹部绞痛、高热，黄疸逐渐减退，每日引流胆汁300ml-1000ml不等，由淡黄色混浊、内有胆泥过渡到金黄色清亮的正常胆汁，腹腔引流通畅，引流液为淡红色，量从最初的200ml迅速过渡到10ml，血常规、血清谷丙转氨酶、谷草转氨酶、总蛋白、白蛋白、球蛋白等1周内均恢复正常，血清总胆红素、直接胆红素、间接胆红素、谷氨酰转肽酶、碱性磷酸酶逐渐下降，术后12d夹闭T管，术后24d T管造影提示左、右肝管及胆总管下端通畅，无狭窄。

Cerebral thalamus and basal nuclei hemorrhage patients with haematoma breaking into lateral cerebral ventricle and the third and fourth ventricle were treared by being put tube into two cornu frontale ventriculi lateralis and haematoma cavityt.

人流没有138例中血肿经过充分引流，奎根试验，夹管试验等措施，如闭管后病人病情加重，可暂时开放引流管并再次注入尿激酶后引流，确认可以拔管后有2例再次置外引流管血玉咒，1例因不能拔管行v-p术。

Based on the comparison between several present schemes controlling DC motor with PWM, a design scheme for drive circuit fit to EPS is presented, in which both low side and high side are N-MOS and high side is either in fully-off or fully-on state while low side is controlled by logic circuit.

在分析电动助力转向系统电机驱动电路性能和可靠性要求的基础上，对比常用的PWM控制直流电机的优缺点，提出了电动助力转向系统驱动电路的设计方案：上、下管均采用N沟道MOS管，上管常通或常闭，下管由PWM逻辑电平控制。

Objective To introduce the diagnosis and local injection treatment of the obturator nerve neuralgia. Methods 4 cases with 5 sides of certain diagnosed obturator nerve neuralgia in out patient department were selected and 3 of them treated by local injection of prednisolone plus local anesthetic to the nerve where it emerges from the obturator canal.

目的 介绍闭孔神经痛的诊断与局部注射的治疗方法方法选择门诊确诊为闭孔神经痛患者4例5侧，采取强的松龙混悬液加局部麻药注射神经穿出闭孔膜管处的方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。