The EXL-50U is China’s first large spherical torus device with a toroidal field reaching 1 T.The major radius of the EXL-50U ranges from 0.6 m to 0.8 m,with an aspect ratio of 1.4−1.8.The goal of plasma current in th...The EXL-50U is China’s first large spherical torus device with a toroidal field reaching 1 T.The major radius of the EXL-50U ranges from 0.6 m to 0.8 m,with an aspect ratio of 1.4−1.8.The goal of plasma current in the first experimental phase is 500 kA,and in the future second phase,the goal of plasma current is 1 MA.On the EXL-50U project,the ENN fusion team expeditiously accomplished a series of comprehensive tasks including physical and engineering design,main component construction installation,and system commissioning,all within a mere eighteen-month timeframe.In the experiments of 2024,the EXL-50U achieved a 500 kA limiter configuration discharge using ECRH(Electron Cyclotron Resonance Heating)for non-inductive current start-up and a current ramp-up with the synergetic effect of ECRH and central solenoid(CS).Preliminary divertor configuration plasmas were also obtained under 200 kA plasma current.The core ion temperature of 1 keV was achieved with low-power NBI heating,and the energy confinement time of 30 ms was reached with Ohmic heating in the flat-top phase.The current and future experiments of EXL-50U will strongly support the physical design and operational scenarios of EHL-2 in the areas of current drive,high ion temperature exploration,energy transport and confinement,and hydrogen-boron physical characteristics.At the same time,the experience in the design,construction,and commissioning of the engineering,heating,and diagnostics systems on EXL-50U is also very beneficial for enhancing the feasibility of the engineering design for EHL-2.展开更多
针对静态人群图像中背景干扰和尺度变化等问题,采用多尺度特征提取模块(Res2Net)以更细的粒度提取多尺度特征,提高对不同尺寸人头的计数性能;引入卷积注意力模块(CBAM),分别在通道域和空间域上提高人群区域的权重,有效改善了高密度和复...针对静态人群图像中背景干扰和尺度变化等问题,采用多尺度特征提取模块(Res2Net)以更细的粒度提取多尺度特征,提高对不同尺寸人头的计数性能;引入卷积注意力模块(CBAM),分别在通道域和空间域上提高人群区域的权重,有效改善了高密度和复杂的人群场景下背景干扰等问题。在此基础上,将CBAM模块集成到Res2Net模块中,形成了新的多尺度特征提取模块CBAM-Res2Net。在后端网络中设计了一个扩张模块以提取更深层的特征并进行特征融合回归,从而生成高质量的密度图。并且分别在ShanghaiTech Part A、ShanghaiTech Part B和UCF_CC_50数据集上进行了算法对比实验,本文模型在上述数据集的平均绝对误差和均方根误差分别为61.4、7.3、255.6和98.5、10.8、310.2,综合性能均优于其他算法,验证了模型的准确性和鲁棒性。展开更多
目的:研究分析津力达结合门冬胰岛素50治疗2型糖尿病的临床价值。方法:选取2012年10月至2015年5月石家庄市第一医院收治确诊的94例2型糖尿病患者,对纳入研究的全体患者采取随机数字表法将其均分为观察组与对照组,每组各含病例47例。对...目的:研究分析津力达结合门冬胰岛素50治疗2型糖尿病的临床价值。方法:选取2012年10月至2015年5月石家庄市第一医院收治确诊的94例2型糖尿病患者,对纳入研究的全体患者采取随机数字表法将其均分为观察组与对照组,每组各含病例47例。对照组给予适当的门冬胰岛素50皮下注射给药,观察组则在前者前提下实施津力达治疗,观察比较2组患者治疗后血糖、总有效情况等。结果:干预后,2组FPG,2 h PG,Hb A1c,HOMA-IR、HOMA-β分别与本组内干预前比较差异有统计学意义(P<0.01);观察组干预后FPG,2 h PG,Hb A1c,HOMA-IR、HOMA-β分别与对照组干预后比较差异有统计学意义(P<0.01);观察组干预后总有效情况显著较对照组差异有统计学意义(P<0.05)。结论:津力达结合门冬胰岛素50能显著降低2型糖尿病患者血糖情况,并改善其胰岛功能,临床价值显著。展开更多
基金supported by ENN Group and ENN Energy Research Institute.
文摘The EXL-50U is China’s first large spherical torus device with a toroidal field reaching 1 T.The major radius of the EXL-50U ranges from 0.6 m to 0.8 m,with an aspect ratio of 1.4−1.8.The goal of plasma current in the first experimental phase is 500 kA,and in the future second phase,the goal of plasma current is 1 MA.On the EXL-50U project,the ENN fusion team expeditiously accomplished a series of comprehensive tasks including physical and engineering design,main component construction installation,and system commissioning,all within a mere eighteen-month timeframe.In the experiments of 2024,the EXL-50U achieved a 500 kA limiter configuration discharge using ECRH(Electron Cyclotron Resonance Heating)for non-inductive current start-up and a current ramp-up with the synergetic effect of ECRH and central solenoid(CS).Preliminary divertor configuration plasmas were also obtained under 200 kA plasma current.The core ion temperature of 1 keV was achieved with low-power NBI heating,and the energy confinement time of 30 ms was reached with Ohmic heating in the flat-top phase.The current and future experiments of EXL-50U will strongly support the physical design and operational scenarios of EHL-2 in the areas of current drive,high ion temperature exploration,energy transport and confinement,and hydrogen-boron physical characteristics.At the same time,the experience in the design,construction,and commissioning of the engineering,heating,and diagnostics systems on EXL-50U is also very beneficial for enhancing the feasibility of the engineering design for EHL-2.
文摘针对静态人群图像中背景干扰和尺度变化等问题,采用多尺度特征提取模块(Res2Net)以更细的粒度提取多尺度特征,提高对不同尺寸人头的计数性能;引入卷积注意力模块(CBAM),分别在通道域和空间域上提高人群区域的权重,有效改善了高密度和复杂的人群场景下背景干扰等问题。在此基础上,将CBAM模块集成到Res2Net模块中,形成了新的多尺度特征提取模块CBAM-Res2Net。在后端网络中设计了一个扩张模块以提取更深层的特征并进行特征融合回归,从而生成高质量的密度图。并且分别在ShanghaiTech Part A、ShanghaiTech Part B和UCF_CC_50数据集上进行了算法对比实验,本文模型在上述数据集的平均绝对误差和均方根误差分别为61.4、7.3、255.6和98.5、10.8、310.2,综合性能均优于其他算法,验证了模型的准确性和鲁棒性。
文摘目的:研究分析津力达结合门冬胰岛素50治疗2型糖尿病的临床价值。方法:选取2012年10月至2015年5月石家庄市第一医院收治确诊的94例2型糖尿病患者,对纳入研究的全体患者采取随机数字表法将其均分为观察组与对照组,每组各含病例47例。对照组给予适当的门冬胰岛素50皮下注射给药,观察组则在前者前提下实施津力达治疗,观察比较2组患者治疗后血糖、总有效情况等。结果:干预后,2组FPG,2 h PG,Hb A1c,HOMA-IR、HOMA-β分别与本组内干预前比较差异有统计学意义(P<0.01);观察组干预后FPG,2 h PG,Hb A1c,HOMA-IR、HOMA-β分别与对照组干预后比较差异有统计学意义(P<0.01);观察组干预后总有效情况显著较对照组差异有统计学意义(P<0.05)。结论:津力达结合门冬胰岛素50能显著降低2型糖尿病患者血糖情况,并改善其胰岛功能,临床价值显著。
