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Clinical anatomy of the tympanic nerve: A review

World Journal of Otorhinolaryngology 2014年第4期4卷 17-22页

作者： Todd Kanzara andy hall Jagdeep Singh Virk Billy Leung Arvind Singh Department of Surgery Lister Hospital Coreys Mill Lane Stevenage Hertfordshire SG1 4AB United Kingdom Department of ENT Harrow Middlesex HA1 3UJ United Kingdom Department of ENT Queens Hospital Romford RM7 0AG United Kingdom Department of Anatomy Kings College Guys Campus London SE1 4XA United Kingdom

The tympanic （Jacobson’s） nerve is a useful anatomi-cal structure in the middle ear with both practical and physiological functions extending beyond its origin. The paper reviews its clinical anatomy in adults and its surgical signifcance. English language articles from 5 major databases and Google scholar search engine were used to identify papers outlining the anatomy of the tympanic nerve, associated pathology and surgical relevance. In the majority of cases the tympanic nerve arises from the inferior ganglion of the glossopharyn-geal nerve traversing through the tympanic canaliculus into the middle ear. On the promontory it coalesces with sympathetic fbres from the carotid chain forming the tympanic plexus which has individual variability. Functionally, as well as giving off parasympathetic fbres to the parotid gland via the lesser petrosal nerve, it is a useful anatomical landmark for cochlear implantation. The surgical importance of the tympanic nerve is not only restricted to middle ear surgery; it also extends to salivary gland disorders. The tympanic nerve remains clinically relevant to the modern otolaryngologist and as such a detailed understanding of its anatomy is crucial.

关键词： Tympanic nerve Canaliculus Glossopha-ryngeal nerve Promontory

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Neutron transmission imaging with a portable D-T neutron generator

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Radiation Detection Technology and Methods 2022年第2期6卷 234-243页

作者： Phillip Kerr Nerine Cherepy Jennifer Church Gary Guethlein Jim hall Colby McNamee Sean o'Neal Kyle Champley andy Townsend Mayuki Sasagawa Anthony Hardy Saphon Hok Lawrence Livermore National Laboratory LivermoreCA 94550USA

Purpose A portable fast-neutron imaging system is being developed to provide complementary information to field X-ray *** include inspection of vehicles and infrastructure for corrosion,measurement of material levels in containers,and inspection of munitions and suspicious *** fast-neuron imaging generally provides lower imaging resolution compared to X-rays,fast-neutron interaction cross-sections have a weak dependence on material *** enables imaging of low-Z materials inside high-Z ***,we discuss the limitations and current improvements in fast-neuron *** Limitations in portable fast-neutron imaging systems include low D-T neutron generator output,low light pro-duction in ZnS(Cu)imaging scintillators,low resolution due to scintillator thickness and D-T spot size,and digital-panel darknoise that varies in time and position and that can be 100×larger than the neutron *** have made improvements in these areas through development of a segmented high light yield scintillator,panel noise mitigation techniques,and testing of new high-output,small spot size D-T neutron *** The segmented high light yield fast-neutron scintillator demonstrated 5×increase in light compared to ZnS(Cu).An additional 2×improvement in signal-to-noise was demonstrated with panel-noise mitigation *** MCNP calculations also show good agreement with neutron imaging results Conclusions We have demonstrated improvements in fast-neutron imaging through development of a segmented high light yield neutron scintillator,mitigation of digital panel noise,and preliminary testing with new high-output,small spot size D-T neutron *** have also demonstrated good results modeling fast-neutron images and scatter effects using MCNP.

关键词： Fast-neutron radiography Portable neutron imaging Neutron scintillators Monte Carlo simulation

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We＇ve Ad Enough

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China International Business 2008年第3期 30-31页

作者： andy XIE

Waiting for the lift in my friend＇s apartment block in Shanghai is torture. An LCD screen in the lobby rolls flashing adverts around the clock. The sound blares across the entrance hall. It is so annoying that people... 详细信息

关键词：广告楼宇电视传媒业中国

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双层石墨烯中的偶数分母分数量子霍尔态

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物理学报 2022年第18期71卷 73-78页

作者：李庆鑫黄焱陈以威朱雨剑朱旺宋珺威安冬冬甘祺康王开元王浩林 †麦志洪 andy Shen 郗传英张警蕾于葛亮王雷南京大学物理学院固体微结构物理国家重点实验室南京210093 南京大学人工微结构科学与技术协同创新中心南京210093 中国科学院强磁场科学中心合肥230031 湖北九峰山实验室武汉430206

在半填充的朗道能级,复合费米子手征p波配对的Moore-Read态具有e/4的分数激发,其中部分这种准粒子服从非阿贝尔统计,有望用于实现拓扑量子计算.双层石墨烯由于其电子的SU(4)对称性和电场对其性质的方便调控性,成为研究多分量量子霍尔态... 详细信息

在半填充的朗道能级,复合费米子手征p波配对的Moore-Read态具有e/4的分数激发,其中部分这种准粒子服从非阿贝尔统计,有望用于实现拓扑量子计算.双层石墨烯由于其电子的SU(4)对称性和电场对其性质的方便调控性,成为研究多分量量子霍尔态的理想平台,是实现非阿贝尔统计的候选者.本文利用干法转移技术制备了双层石墨烯/氮化硼异质结,通过电学输运测量展示了双层石墨烯在调节外电场和磁场下的量子霍尔态行为.在强磁场下,观测到了朗道能级填充因子为–5/2,–1/2,3/2的伴随着量子化霍尔电导的不可压缩态.随着磁场继续增强,这些偶数分母量子霍尔态特征先增强再减弱,对应朗道能级波函数的极化.实验结果暗示观察到的这些偶数分母分数量子霍尔态属于由Pffafian波函数描述的拓扑态.

关键词：石墨烯分数量子霍尔效应拓扑相

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