为了对国内自主开发的反应堆严重事故一体化分析程序MOSAP(Modular Severe accident Analysis Program)的堆内早期现象分析模型进行验证,分别利用MOSAP程序和国际通用严重事故分析程序,对国际标准题ISP31和ISP46实验进行了建模计算。将M...为了对国内自主开发的反应堆严重事故一体化分析程序MOSAP(Modular Severe accident Analysis Program)的堆内早期现象分析模型进行验证,分别利用MOSAP程序和国际通用严重事故分析程序,对国际标准题ISP31和ISP46实验进行了建模计算。将MOSAP程序计算获得的燃料和控制棒温度、氢气产生以及主要放射性核素释放率等参数计算结果,与实验和国际通用程序计算结果进行对比和分析。结果表明:MOSAP程序计算结果与实验和国际通用程序计算结果均符合性良好,主要参数计算值与实验值偏差在20%以内。表明自主开发的MOSAP程序能够实现堆芯过热,燃料、包壳和控制棒氧化,以及裂变产物释放等严重事故堆内主要早期现象的模拟。展开更多
AIM： To compare the clinical performance of 4 spectraldomain（SD） optical coherence tomography angiography（OCTA） systems： AngioVueTM, AngioPlexTM, Spectralis？ OCTA, AngioScan, and 1 swept-source（SS） OCTA SS OC...AIM： To compare the clinical performance of 4 spectraldomain（SD） optical coherence tomography angiography（OCTA） systems： AngioVueTM, AngioPlexTM, Spectralis？ OCTA, AngioScan, and 1 swept-source（SS） OCTA SS OCT AngioTM. METHODS： Twenty-seven undilated right eyes of 27 participants underwent OCTA examination using five different systems respectively for both 3×3 and 6×6 mm^2 scan pattern（Spectralis OCTA for 3×3 mm^2 scan only）. Image quality, including vessel valid visibility and the number of motion artifacts, and acquisition time were evaluated. Repeated measures analysis of variance（ANOVA） with Bonferroni＇s post-test and Friedman test with Dunn＇s posttest were used to compare measurements.RESULTS： The age of the subjects was 28.19±5.55 y（range, 23-49 y）. The spherical equivalent refraction was-2.55±1.84 D（range, 0.00 to-5.25 D）. Significant difference was observed in the evaluation of vessel valid visibility（Angio Vue the highest： 0.111±0.031 for 3×3 mm^2 scan and 0.128±0.020 for 6×6 mm^2 scan）, number of motion artifacts（AngioVue the fewest： 0.778±1.086 for 3×3 mm^2 scan and 0.333±0.620 for 6×6 mm^2 scan） and acquisition time（AngioPlex the shortest： 8.537±1.921 s for 3×3 mm^2 scan and 8.298±1.741 s for 6×6 mm^2 scan; all P〈0.001）. CONCLUSION： There is poor agreement of measurements among systems. AngioVue provides images with the highest vessel valid visibility and the fewest motion artifacts. AngioPlex achieves the shortest acquisition.展开更多
文摘为了对国内自主开发的反应堆严重事故一体化分析程序MOSAP(Modular Severe accident Analysis Program)的堆内早期现象分析模型进行验证,分别利用MOSAP程序和国际通用严重事故分析程序,对国际标准题ISP31和ISP46实验进行了建模计算。将MOSAP程序计算获得的燃料和控制棒温度、氢气产生以及主要放射性核素释放率等参数计算结果,与实验和国际通用程序计算结果进行对比和分析。结果表明:MOSAP程序计算结果与实验和国际通用程序计算结果均符合性良好,主要参数计算值与实验值偏差在20%以内。表明自主开发的MOSAP程序能够实现堆芯过热,燃料、包壳和控制棒氧化,以及裂变产物释放等严重事故堆内主要早期现象的模拟。
基金Supported by National Key Research and Development Program for Precision Medicine of China (No.2016YFC0904800)
文摘AIM： To compare the clinical performance of 4 spectraldomain（SD） optical coherence tomography angiography（OCTA） systems： AngioVueTM, AngioPlexTM, Spectralis？ OCTA, AngioScan, and 1 swept-source（SS） OCTA SS OCT AngioTM. METHODS： Twenty-seven undilated right eyes of 27 participants underwent OCTA examination using five different systems respectively for both 3×3 and 6×6 mm^2 scan pattern（Spectralis OCTA for 3×3 mm^2 scan only）. Image quality, including vessel valid visibility and the number of motion artifacts, and acquisition time were evaluated. Repeated measures analysis of variance（ANOVA） with Bonferroni＇s post-test and Friedman test with Dunn＇s posttest were used to compare measurements.RESULTS： The age of the subjects was 28.19±5.55 y（range, 23-49 y）. The spherical equivalent refraction was-2.55±1.84 D（range, 0.00 to-5.25 D）. Significant difference was observed in the evaluation of vessel valid visibility（Angio Vue the highest： 0.111±0.031 for 3×3 mm^2 scan and 0.128±0.020 for 6×6 mm^2 scan）, number of motion artifacts（AngioVue the fewest： 0.778±1.086 for 3×3 mm^2 scan and 0.333±0.620 for 6×6 mm^2 scan） and acquisition time（AngioPlex the shortest： 8.537±1.921 s for 3×3 mm^2 scan and 8.298±1.741 s for 6×6 mm^2 scan; all P〈0.001）. CONCLUSION： There is poor agreement of measurements among systems. AngioVue provides images with the highest vessel valid visibility and the fewest motion artifacts. AngioPlex achieves the shortest acquisition.
