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Successful removal of a penoscrotal constricting ring in a 49-year-old male 被引量:3
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作者 Yadong Lu Teck-Wei Tan KO Weber Lau 《Asian Journal of Urology》 2017年第4期262-264,共3页
Placement of constricting devices around the penis and scrotum for autoerotic purposes or increasing sexual performance represents a well-known challenge for urologists and can result in serious complications.The remo... Placement of constricting devices around the penis and scrotum for autoerotic purposes or increasing sexual performance represents a well-known challenge for urologists and can result in serious complications.The removal of the constricting devices can be challenging and often requires resourcefulness and multidisciplinary approach.We report one case of successful removal of a penoscrotal constricting metal ring in a 49-year-old male using a handheld orthopaedic saw under ketamine and midazolam sedation in the emergency department. 展开更多
关键词 Constricting metal ring Hand-held orthopaedic saw Penile strangulation
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煤矿副井轴式安全门工艺设计
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作者 陆继旺 贾福音 《煤矿机械》 北大核心 2011年第9期104-106,共3页
安全门是防止人员、矿车等误进危险区域而设置的重要安全设施。针对当前矿用安全门在工作过程中精确度不高的问题,设计出一种通过扭矩使金属环网在空心金属圆柱上缠绕和剥离的轴式安全门。与其他安全门相比,轴式安全门在工作过程中效率... 安全门是防止人员、矿车等误进危险区域而设置的重要安全设施。针对当前矿用安全门在工作过程中精确度不高的问题,设计出一种通过扭矩使金属环网在空心金属圆柱上缠绕和剥离的轴式安全门。与其他安全门相比,轴式安全门在工作过程中效率和精确度更高,结构设计更加合理,而且更换周期也有很明显地延长。 展开更多
关键词 金属环网 金属空心圆柱 尼龙绳 四角支架 传感器
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A new level-shifting structure with multiply metal rings by divided RESURF technique 被引量:1
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作者 刘继芝 陈星弼 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2009年第4期38-42,共5页
A new structure of a lateral n-MOST and a new level-shifting structure with multiply metal rings (MMRs) by divided RESURF technique have been proposed. The device and electrical performances of the structure are ana... A new structure of a lateral n-MOST and a new level-shifting structure with multiply metal rings (MMRs) by divided RESURF technique have been proposed. The device and electrical performances of the structure are analyzed and simulated by MEDICI. In comparison to the level-shifting structure with multiply floating field plates (MFFPs) used before, the structure stated here improves the reliability and diminishes the voltage difference between the voltage of the power supply of the high-side gate driver and the voltage of the output terminal of the level-shifting structure, which is also that of the input terminal of the high-side gate driver. The maximal voltage difference of the level-shifting structure in this paper is 30% lower than that used before. Therefore, good voltage isolation and current isolation are obtained. The structure can be used in the level-shifting circuit of various applications. 展开更多
关键词 level-shifting divided RESURF multiple metal rings
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New design of triplexer based on metal–insulator–metal plasmonic ring resonators
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作者 吳曜東 《Chinese Optics Letters》 SCIE EI CAS CSCD 2014年第11期35-39,共5页
In this work, we propose a new design of all-optical triplexer based on of metal–insulator–metal(MIM) plasmonic waveguide structures and ring resonators. By adjusting the radii of ring resonators and the gap dista... In this work, we propose a new design of all-optical triplexer based on of metal–insulator–metal(MIM) plasmonic waveguide structures and ring resonators. By adjusting the radii of ring resonators and the gap distance, certain wavelengths can be filtered out and the crosstalk of each channel can also be reduced. The numerical results show that the proposed MIM plasmonic waveguide structure can really function as an optical triplexer with respect to the three wavelengths, that is, 1310, 1490, and 1550 nm, respectively. It can be widely used as the fiber access network element for multiplexer–demultiplexer wavelength selective in fiber-to-the-home communication systems with transmission efficiency higher than 90%. It can also be a potential key component in the applications of the biosensing systems. 展开更多
关键词 ring New design of triplexer based on metal metal plasmonic ring resonators
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金属丝网橡胶的本构关系 被引量:10
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作者 邹广平 刘泽 +1 位作者 唱忠良 李雨蕾 《航空动力学报》 EI CAS CSCD 北大核心 2016年第10期2318-2324,共7页
通过对圆环形金属丝网橡胶成型制造过程的分析,在圆环嵌套模型基础上,结合干摩擦非线性理论和小曲梁模型建立了金属丝网橡胶材料的非线性本构关系,对不同相对密度的金属丝网橡胶试件进行了静态压缩实验,通过实验数据确定了本构关系方程... 通过对圆环形金属丝网橡胶成型制造过程的分析,在圆环嵌套模型基础上,结合干摩擦非线性理论和小曲梁模型建立了金属丝网橡胶材料的非线性本构关系,对不同相对密度的金属丝网橡胶试件进行了静态压缩实验,通过实验数据确定了本构关系方程的各项系数并实验结果进行比较.研究结果表明:建立的本构关系模型可以很好地描述金属丝网橡胶的非线性力学特性,实验结果能够较好地符合理论结果,并且该模型反映了相对密度、网格大小和网格宽度等参数的影响,从而实现了对材料结构刚度的预估. 展开更多
关键词 金属丝网橡胶 本构关系 圆环嵌套模型 非线性力学特性 静态压缩实验
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