In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase ...In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase rate, and patent activity. These indicators were quantified into several indexes and then integrated into an evaluation score to provide promising technologies. As a result of the suggested patent analysis, four technologies out of twenty two in details classification were selected, which showed outstanding technology competitiveness, high patent share and increasing rates as well as high recent-patent-ratios and triad-patent-family-ratios. Each of the selected technologies scored more than 10 points in total, and the following four technologies were suggested as promising ones in the field of next generation mobile communication: 1) 3GPP based mobile communication, 2) beyond 4G mobile communication, 3) IEEE 802.16 based mobile communication, which are in medium classification of broadband mobile communication system, and 4) testing/certification system of mobile communication, which is in medium classification of mobile communication testing/certification system.展开更多
文摘In order to forecast promising technologies in the field of next generation mobile communication, various patent indicators were analyzed such as citation per patent, patent family information, patent share, increase rate, and patent activity. These indicators were quantified into several indexes and then integrated into an evaluation score to provide promising technologies. As a result of the suggested patent analysis, four technologies out of twenty two in details classification were selected, which showed outstanding technology competitiveness, high patent share and increasing rates as well as high recent-patent-ratios and triad-patent-family-ratios. Each of the selected technologies scored more than 10 points in total, and the following four technologies were suggested as promising ones in the field of next generation mobile communication: 1) 3GPP based mobile communication, 2) beyond 4G mobile communication, 3) IEEE 802.16 based mobile communication, which are in medium classification of broadband mobile communication system, and 4) testing/certification system of mobile communication, which is in medium classification of mobile communication testing/certification system.
文摘目的探讨成人非偏头痛症状与卵圆孔未闭(patent foramen ovale,PFO)的相关性。方法回顾分析我院心血管内科超声心动图室2024年2~12月经胸超声心动图右心声学造影(contrast transthoracic echocardiography,cTTE)检查患者的临床资料,根据症状分为偏头痛症状组(n=527)、非偏头痛症状组(包括不明原因的头晕、耳鸣、一过性听力减退、晕厥、肢体麻木、一过性视野缺损症状,n=144)和无症状对照组(n=87)。比较3组PFO阳性率、PFO阳性患者右向左分流(right to left shunt,RLS)的差异;多因素logistic回归分析PFO阳性的独立相关因素。结果偏头痛症状组、非偏头痛症状组和无症状对照组PFO阳性率分别为85.0%(448/527)、84.0%(121/144)和26.4%(23/87),3组差异有显著性(χ^(2)=153.434,P=0.000),偏头痛症状组和非偏头痛症状组PFO阳性率显著高于无症状对照组(均P=0.000)。592例诊断PFO,3组RLS分级差异有显著性(H=18.762,P=0.000),偏头痛症状组和非偏头痛症状组RLS分级显著高于无症状对照组(均P=0.000)。多因素logistic回归分析显示,年龄≤40岁(OR=2.221,95%CI:1.515~3.256,P=0.000)、偏头痛(OR=3.373,95%CI:2.322~4.899,P=0.000)、头晕(OR=2.499,95%CI:1.694~3.685,P=0.000)和肢体麻木(OR=1.981,95%CI:1.052~3.729,P=0.034)与PFO阳性独立相关。结论头晕、肢体麻木等非偏头痛症状与成人PFO相关,对这些症状的患者进行cTTE检查是必要的。
