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Scaling Laws for Plasma Focus Machines from Numerical Experiments
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作者 s. H. sAW s. lee 《Energy and Power Engineering》 2010年第1期65-72,共8页
Numerical experiments carried out systematically using the Lee Model code unveil insightful and practical wide-ranging scaling laws for plasma focus machines for nuclear fusion energy as well as other applications. An... Numerical experiments carried out systematically using the Lee Model code unveil insightful and practical wide-ranging scaling laws for plasma focus machines for nuclear fusion energy as well as other applications. An essential feature of the numerical experiments is the fitting of a measured current waveform to the computed waveform to calibrate the model for the particular machine, thus providing a reliable and rigorous determination of the all-important pinch current. The thermodynamics and radiation properties of the resulting plasma are then reliably determined. This paper provides an overview of the recently published scaling laws for neutron (Yn) and neon soft x-ray, SXR (Ysxr) yields: Yn = 3.2x1011 Ipinch4.5;Yn = 1.8x1010 Ipeak3.8;Ipeak (0.3 to 5.7), Ipinch (0.2 to 2.4) in MA. Yn^E02.0 at tens of kJ to Yn^E00.84 at MJ level (up to 25MJ) and Ysxr = 8.3x103 Ipinch3.6;Ysxr = 6x102 Ipeak3.2;Ipeak (0.1 to 2.4), Ipinch (0.07 to1.3) in MA. Ysxr^E01.6 (kJ range) to Ysxr^E00.8 (towards MJ). 展开更多
关键词 dense PLASMA FOCUS PLASMA FOCUS SCALING LAWS NEUTRON SCALING LAWS soft x-ray SCALING LAWS PLASMA FOCUS modeling LEE model code
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光敏灭菌辅助龈下刮治后不同深度牙周袋的恢复率比较研究 被引量:11
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作者 王莹 朱形好 +8 位作者 林芝 张秀华 陈宏 丁熙 王靖虓 李一鸣 s. lee J. KIM 邓辉 《口腔医学》 CAS 2008年第6期315-317,共3页
目的评价PERIOWAVETM光敏灭菌法治疗慢性牙周炎后≥4mm牙周袋的恢复效果。方法经伦理委员会同意后,选择45例患者(每位患者口腔内至少有4个以上≥5mm的牙周袋并分布在2个以上口腔区域内),在接受基础检查以及根面平整术(SRP)治疗后,随机分... 目的评价PERIOWAVETM光敏灭菌法治疗慢性牙周炎后≥4mm牙周袋的恢复效果。方法经伦理委员会同意后,选择45例患者(每位患者口腔内至少有4个以上≥5mm的牙周袋并分布在2个以上口腔区域内),在接受基础检查以及根面平整术(SRP)治疗后,随机分入3组,A组在SRP之后接受1次PERIOWAVETM光敏灭菌治疗,B组在SRP后及6周后各接受1次PERIOWAVETM治疗,而C组仅接受SRP治疗。在基础检查及12周后测量牙周袋深度。结果在基础检查中共有1851个≥5mm牙周袋,经过治疗后,C组有212(36.7%)个牙周袋≤3mm,A组有160(62.5%)个牙周袋≤3mm,而B组有187(84.6%)个牙周袋≤3mm;705个4mm的牙周袋,治疗后PD≤3mm的C组147(66.5%)个,A组160(62.5%)个,B组187(84.6%)个。经两样本二项分布检验,对于基础检查中为测量为4mm及≥5mm牙周袋,B组的恢复均明显好于A组及C组(P<0.0001)。结论在SRP基础上加以2次光敏灭菌治疗牙周炎对于浅(4mm)及深(≥5mm)牙周袋深度的恢复均明显大于单独使用SRP。 展开更多
关键词 光动力治疗 亚甲基蓝 牙周袋
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