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Scaled radar cross section measurement method for lossy targets via dynamically matching reflection coefficients in THz band
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作者 Shuang Pang Yang Zeng +2 位作者 Qi Yang Bin Deng Hong-Qiang Wang 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第6期759-764,共6页
In the terahertz band,the dispersive characteristic of dielectric material is one of the major problems in the scaled radar cross section(RCS)measurement,which is inconsistent with the electrodynamics similitude deduc... In the terahertz band,the dispersive characteristic of dielectric material is one of the major problems in the scaled radar cross section(RCS)measurement,which is inconsistent with the electrodynamics similitude deducted according to the Maxwell’s equations.Based on the high-frequency estimation method of physical optics(PO),a scaled RCS measurement method for lossy objects is proposed through dynamically matching the reflection coefficients according to the distribution of the object facets.Simulations of the model of SLICY are conducted,and the inversed RCS of the lossy prototype is obtained using the proposed method.Comparing the inversed RCS with the calculated results,the validity of the proposed method is demonstrated.The proposed method provides an effective solution to the scaled RCS measurement for lossy objects in the THz band. 展开更多
关键词 scaled measurement method radar cross section lossy targets TERAHERTZ
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重复经颅磁刺激对育龄期前庭性偏头痛伴位置性眩晕患者疗效分析
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作者 朱建建 张显军 +3 位作者 马霄 毛庆杰 孙培丽 范红梅 《中国耳鼻咽喉头颈外科》 CSCD 2024年第10期672-674,共3页
目的探讨重复经颅磁刺激(repetitive transcranial magnetic stimulation,rTMS)对育龄期前庭性偏头痛(vestibular migraine,VM)伴位置性眩晕的疗效。方法收集如皋市人民医院神经内科、耳鼻咽喉科门诊育龄期VM伴位置性眩晕患者57例,进行... 目的探讨重复经颅磁刺激(repetitive transcranial magnetic stimulation,rTMS)对育龄期前庭性偏头痛(vestibular migraine,VM)伴位置性眩晕的疗效。方法收集如皋市人民医院神经内科、耳鼻咽喉科门诊育龄期VM伴位置性眩晕患者57例,进行一般情况、量表评价。采用随机数字法分为rTMS组和对照组,所有患者均予以规范非甾体止痛药物、抗眩晕药物治疗,rTMS组给予低频(1 Hz)rTMS作用于枕叶。分别采用SRM-IV眩晕诊疗系统、眼震电图行位置试验、温度试验评估前庭功能,采用眩晕障碍量表(dizziness handicap inventory,DHI),头痛程度视觉模拟量表(VAS)以及头痛影响测评量表(headache impact test-6,HIT-6)对治疗前、治疗2周、治疗3个月疗效评估。结果育龄期VM伴位置性眩晕患者发病年龄23~49(38.72±7.93)岁,52.63%(30/57)患者以后半规管受累为主,33.33%(19/57)患者温度试验异常。组间比较,治疗2周时对照组情绪(DHI-E)优于rTMS组,治疗3个月时rTMS组VAS、HIT-6评分改善程度显著优于对照组(P<0.05),其余时间段VAS、HIT-6、DHI组间比较无统计学差异。组内比较,治疗2周、治疗3个月与治疗前比较,rTMS组和对照组VAS、HIT-6、DHI评分均有统计学差异;治疗3个月与治疗2周比较时,rTMS组除躯体(DHI-P)外其余各评价指标均有统计学差异,对照组仅HIT-6评分、DHI-P存在统计学差异。结论低频rTMS能有效改善VM伴位置性眩晕患者头痛症状,改善眩晕症状并不优于单纯口服药物,随治疗时间延长,rTMS对头痛及眩晕改善越明显。 展开更多
关键词 偏头痛(Migraine Disorders) 良性发作性位置性眩晕病(Benign Paroxysmal Positional Vertigo) 经颅磁刺激(Transcranial Magnetic Stimulation) 前庭性偏头痛(vestibular migraine) 量表(measuring scale)
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Influence of Traditional Chinese Values on Consumer Behavior:the Case of Mobile in Shanghai 被引量:4
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作者 潘煜 高丽 +1 位作者 陈小燕 Gérard Cliquet 《China Communications》 SCIE CSCD 2011年第3期118-132,共15页
This study investigates how traditional Chinese values influence Chinese consumer behavior directly and indirectly through the impact on people's lifestyles and perceived values.The empirical research is conducted... This study investigates how traditional Chinese values influence Chinese consumer behavior directly and indirectly through the impact on people's lifestyles and perceived values.The empirical research is conducted in the context of the mobile phone market in Shanghai.The study establishes measurement scales of Confucian value,lifestyle,and customer perceived value for Chinese market.Relationships of multiple factors are tested in the structural equation model and their impacts on consumer behavior are elaborated.Findings indicate that Confucian values not only have a direct impact on Chinese consumer behavior but also indirectly influence this behavior through impacting people's lifestyles and perceived values. 展开更多
关键词 measurement and scale development issues structural equation model China Confucian values customer perceived value LIFESTYLE
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