Multiple broadband Alfvenic chirping modes(CMs),with frequencies in the wide range of f-35-150 kHz and chirping down rapidly,are found in HL-2A neutral beam injection plasmas,and the CMs can even coexist.The frequency...Multiple broadband Alfvenic chirping modes(CMs),with frequencies in the wide range of f-35-150 kHz and chirping down rapidly,are found in HL-2A neutral beam injection plasmas,and the CMs can even coexist.The frequency chirping down process can be completed within-1 ms,and the frequency shift can reach 30-50 kHz.The CMs propagate in ion diamagnetic drift directions poloidally.The toroidal mode number is confirmed to be n=1,2,3 and 4 for the f-35-65,55-90,70-120 and 100-150 kHz CMs,respectively.The CMs are more like to be energetic-particle continuum modes(EPMs),since the modes almost locate on the Alfven continuum.展开更多
窄带成像术（Narrow Band Imaging,NBI）是1999年Olympus公司与日本国立癌中心合作开发的一种新型的无创性的光学图像增强技术,通过特殊的滤光器将内镜的宽带光谱进行过滤、窄化,形成蓝光成分和绿光成分,利用血红蛋白对蓝光吸收较强的...窄带成像术（Narrow Band Imaging,NBI）是1999年Olympus公司与日本国立癌中心合作开发的一种新型的无创性的光学图像增强技术,通过特殊的滤光器将内镜的宽带光谱进行过滤、窄化,形成蓝光成分和绿光成分,利用血红蛋白对蓝光吸收较强的光学特性达到窥镜下的染色效果。日美等发达国家已经广泛应用NBI于消化道、妇科、呼吸道等疾病的内镜检查多年,是一项相对成熟的黏膜检查技术。近年来，随着NBI于头颈部肿瘤诊断领域的应用的不断推广和完善，NBI技术不仅能发现肿瘤，还可以观察肿瘤的累及范围，指导手术术式和范围，预期预后。本文结合国内外NBI在头颈肿瘤中的应用进行综述。展开更多
基金Supported by the National Key R&D Program of China (Grant Nos.2018YFE0304102,2019YFE03020000 and 2017YFE0301202)the National Natural Science Foundation of China (Grant Nos.11875024,11875021,11835010 and 12005054)the Sichuan Provincial Science and Technology Project (Grant Nos.2020YFSY0047 and 2020JDJQ0070)。
文摘Multiple broadband Alfvenic chirping modes(CMs),with frequencies in the wide range of f-35-150 kHz and chirping down rapidly,are found in HL-2A neutral beam injection plasmas,and the CMs can even coexist.The frequency chirping down process can be completed within-1 ms,and the frequency shift can reach 30-50 kHz.The CMs propagate in ion diamagnetic drift directions poloidally.The toroidal mode number is confirmed to be n=1,2,3 and 4 for the f-35-65,55-90,70-120 and 100-150 kHz CMs,respectively.The CMs are more like to be energetic-particle continuum modes(EPMs),since the modes almost locate on the Alfven continuum.
文摘窄带成像术（Narrow Band Imaging,NBI）是1999年Olympus公司与日本国立癌中心合作开发的一种新型的无创性的光学图像增强技术,通过特殊的滤光器将内镜的宽带光谱进行过滤、窄化,形成蓝光成分和绿光成分,利用血红蛋白对蓝光吸收较强的光学特性达到窥镜下的染色效果。日美等发达国家已经广泛应用NBI于消化道、妇科、呼吸道等疾病的内镜检查多年,是一项相对成熟的黏膜检查技术。近年来，随着NBI于头颈部肿瘤诊断领域的应用的不断推广和完善，NBI技术不仅能发现肿瘤，还可以观察肿瘤的累及范围，指导手术术式和范围，预期预后。本文结合国内外NBI在头颈肿瘤中的应用进行综述。
