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Methods From June 1997 to June 2001,89 cases of femoral neck fracture were treated by two nonparallel and nonintersection hollow compression screws fixation.

闭合复位、空心加压螺钉内固定作为治疗股骨颈骨折的一种方法,由于其创伤小、费用低廉而得到广泛应用[1] 。

First, a model of transformer has been built and analysed to formulate the expression of pulse on the load capacitor, which can demonstrate the influence of major parameters of transfomer on the charging time and efficiency of energy-transmitting. The influence of output pulse when the resistor of circuit is being took into account also has been analysed by the means of circuit simulation and approximate solution of circuit equation. The efficiency of energy-transmitting under dual nonresonant condition has been analysed and the parameters of transformer has been decided.

首先,对空心变压器的理论模型进行了分析,在得到了输出脉冲电压的表达式的基础上分析了变压器各主要参数对脉冲充电时间和充电时能量传输效率的影响;同时还通过近似求解状态方程的方法对考虑线路电阻时输出脉冲受到的影响进行了分析;讨论了在非双谐振情况下的能量传输效率的问题。

Spherical versus nonspherical and solid versus hollow.

金属纳米结构的物理和化学性质强烈依赖于其形貌(如:球形或非球形,空心或实心等)。

Arthroscopic percutaneous osteosynthesis yields satisfactory results and can be accepted as an alternative and effective method for the treatment of low-energy tibial plateau fractures.

关节镜下经皮复位、空心钉内固定具有损伤小、恢复快、功能恢复满意等优点,是治疗低能量胫骨平台骨折的有效方法之一。

Methods 68 cases with femoral peritrochanteric fracture from January, 2002 to December, 2007. 25 were treated by Gamma nail, 25 of them were treated by DHS, DCS and 18 of them were treated by HCS.

2002年1月~2007年12月收治的股骨转子间骨折并通过手术治疗的68例,采用Gamma钉固定25例、滑动加压鹅头钉固定25例与空心加压螺钉固定18例。

These three internal fixations of femoral peritrochanteric fracture were differ. For example, Gamma nail is less harmful, better clinical treatment, shorter in shape and stronger in anti-hip inversion. DHS, DCS have a better treatment and are stronger in anti-hip inversion but more harmful and excessive bleeding, and HCS, which is named Minimally Invasive Surgery, is the least harmful, less bleeding, suitable for old patients and the patients of tolerance of poor operation, but poor in anti-hip inversion.

3种不同方法内固定治疗转子间骨折具有各自的特点,Gamma钉具有手术损伤小及良好的临床疗效力臂短对抗髋内翻的能力强;滑动加压鹅头钉具有良好的临床疗效及相对坚强的抗内翻能力,但手术损伤相对较大,失血量较大;空心加压螺钉固定的手术损伤最小,属于微创手术方法,可经皮完成,手术出血少,适用于高龄及手术耐受性差的患者,但抗髋内翻的能力最差。

Methods From 2004 1 to 2005 1, 13 patients suffered hip fracture complicated with internal capsule cerebral infarction, including 5 male and 8 female, mean year is 65.4, all those patients undertook closed replacement internal fixation with hollow nail under X-rays perspection, and early undertook functional exercise.

自2004年1月~2005年10月对13例内囊区脑梗死出现股骨颈骨折或股骨粗隆间骨折的患者,男5例,女8例,平均年龄65.4岁,全部病例进行X线透视下闭合复位空心钉内固定术治疗,术后早期进行功能训练。

Objective To approach earlier surgical therapy of hip fracture complicated with cerebral infarction.Methods From 2004 1 to 2005 1, 13 patients suffered hip fracture complicated with internal capsule cerebral infarction, including 5 male and 8 female, mean year is 65.4, all those patients undertook closed replacement internal fixation with hollow nail under X-rays perspection, and early undertook functional exercise.

目的 探讨脑梗死患者股骨颈骨折或股骨粗隆间骨折的早期外科治疗方法自2004年1月~2005年10月对13例内囊区脑梗死出现股骨颈骨折或股骨粗隆间骨折的患者,男5例,女8例,平均年龄65.4岁,全部病例进行X线透视下闭合复位空心钉内固定术治疗,术后早期进行功能训练。

This method can make sure the structure radiant sound status in total noise and the detail phonate part quickly and correctly.(3) Study on the control mechanism of structure noise radiated from rotary machines, we build a common model of rotary machine structure noise analysis relied on the general characters of rotary machines. Based on this model, we analyzed various influence factors to structure radiant noise using the union of revolution and numerical calculation method. We found that the joint stiffness between the rotor and the frame is the most sensitive parameter of structure radiant noise by calculating and analyzing.

根据本文对于旋转机械结构噪声控制技术的研究结果和惯性振动筛工作的特殊要求,对有关参数的选择进行了讨论,并通过试验为降低惯性振动筛噪声找到了两个新的方法:即,在轴间相对运动要求不高的情况下,可以在激振器与筛体之间安装一组减振器,通过适当选取减振器参数,既可以使机体在工作频率附近获得稳定振幅,保证振动筛正常工作,又可以使机体的高频响应减小,降噪效果显著;反之,如果轴间相对运动精度要求(来源:1aABC论文网www.abclunwen.com)较高,可以采用空心滚动体轴承,在保证滚动体强度的条件下也可以获得较好的降噪效果。

The chlorophyll fluorescence characteristics of three invasive plants which were Eichhornia crassipes, Pistia stratiotes and Alternanthera philoxeroides were measured by modulated-chlorophyll fluorometer.

方法]以3种入侵植物水葫芦、大薸和空心莲子草为材料,利用调制叶绿素荧光技术对其叶绿素荧光特性进行比较。

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