The electron cyclotron emission(ECE)diagnostic system has been developed on the ENN spherical torus(EXL-50).The ECE system is designed to detect radiation emitted by energetic electrons,rather than conventional 1D ele...The electron cyclotron emission(ECE)diagnostic system has been developed on the ENN spherical torus(EXL-50).The ECE system is designed to detect radiation emitted by energetic electrons,rather than conventional 1D electron temperature profile measurement,in the frequency range of 4-40 GHz.The system is composed of five subsystems,each covering a different frequency band,including the C-band(4-8 GHz),X-band(8-12 GHz),Ku-band(12-18 GHz),K-band(18-26.5 GHz)and Kα-band(26.4-40 GHz).The system uses heterodyne detection to analyze the received signals.The K-band and Kα-band subsystems are located horizontally in the equatorial plane of the EXL-50,while the C-band,X-band and Ku-band subsystems are located under the vacuum vessel of the EXL-50.To direct the microwaves from the plasma to the antennas for the horizontal detection subsystems,a quasi-optical system has been developed.For the vertical detection subsystems,the antennas are directly attached to the port located beneath the torus at R=700 mm,which is also the magnetic axis of the torus.The system integration,bench testing and initial experimental results will be thoroughly discussed,providing a comprehensive understanding of the ECE system s performance and capabilities.展开更多
目的:系统评价针刺治疗帕金森病抑郁(PDD)的效果。方法:检索国家知识基础设施数据库(CNKI)、中国学术期刊数据库(CSPD)、中文科技期刊数据库(CCD)、中国生物医学文献数据库(CBM)、EMbase、PubMed、Web of Science和Cochrane Library数据...目的:系统评价针刺治疗帕金森病抑郁(PDD)的效果。方法:检索国家知识基础设施数据库(CNKI)、中国学术期刊数据库(CSPD)、中文科技期刊数据库(CCD)、中国生物医学文献数据库(CBM)、EMbase、PubMed、Web of Science和Cochrane Library数据库,搜集针刺治疗PDD的随机对照试验(RCT),检索时间均为建库至2021年11月。由2名经过Meta分析的研究者独立筛选文献、提取资料并采用Cochrane偏倚风险评估工具对纳入研究进行质量评价后,采用RevMan 5.3软件和Stata13.0软件进行Meta分析。结果:共纳入15篇文献,包括1184例患者。Meta分析结果显示:与对照组比较,观察组能降低PDD患者汉密尔顿抑郁量表(HAMD)评分[加权均数差(WMD)=-3.38,95%置信区间(CI)为-4.79~-1.98,P<0.00001]、综合帕金森病评分量表(UPDRS)评分(WMD=-6.67,95%CI为-7.50~-5.84,P<0.00001)、UPDRSⅡ评分(WMD=-2.19,95%CI为-2.61~-1.78,P<0.00001)、UPDRSⅢ评分(WMD=-3.32,95%CI为-3.99~-2.65,P<0.00001),提高总有效率(RR=1.25,95%CI为1.17~1.33,P<0.00001)及血清脑源性神经营养因子(BDNF)水平(WMD=2.47,95%CI为1.03~3.91,P=0.0008)。结论:当前有限证据表明,针刺治疗PDD比较对照组在改善抑郁症状、日常生活和运动功能方面有优势。展开更多
基金performed under the auspices of National Natural Science Foundation of China(No.11605244)supported by the High-End Talents Program of Hebei Province,Innovative Approaches towards Development of CarbonFree Clean Fusion Energy(No.2021HBQZYCSB006)。
文摘The electron cyclotron emission(ECE)diagnostic system has been developed on the ENN spherical torus(EXL-50).The ECE system is designed to detect radiation emitted by energetic electrons,rather than conventional 1D electron temperature profile measurement,in the frequency range of 4-40 GHz.The system is composed of five subsystems,each covering a different frequency band,including the C-band(4-8 GHz),X-band(8-12 GHz),Ku-band(12-18 GHz),K-band(18-26.5 GHz)and Kα-band(26.4-40 GHz).The system uses heterodyne detection to analyze the received signals.The K-band and Kα-band subsystems are located horizontally in the equatorial plane of the EXL-50,while the C-band,X-band and Ku-band subsystems are located under the vacuum vessel of the EXL-50.To direct the microwaves from the plasma to the antennas for the horizontal detection subsystems,a quasi-optical system has been developed.For the vertical detection subsystems,the antennas are directly attached to the port located beneath the torus at R=700 mm,which is also the magnetic axis of the torus.The system integration,bench testing and initial experimental results will be thoroughly discussed,providing a comprehensive understanding of the ECE system s performance and capabilities.
文摘目的:系统评价针刺治疗帕金森病抑郁(PDD)的效果。方法:检索国家知识基础设施数据库(CNKI)、中国学术期刊数据库(CSPD)、中文科技期刊数据库(CCD)、中国生物医学文献数据库(CBM)、EMbase、PubMed、Web of Science和Cochrane Library数据库,搜集针刺治疗PDD的随机对照试验(RCT),检索时间均为建库至2021年11月。由2名经过Meta分析的研究者独立筛选文献、提取资料并采用Cochrane偏倚风险评估工具对纳入研究进行质量评价后,采用RevMan 5.3软件和Stata13.0软件进行Meta分析。结果:共纳入15篇文献,包括1184例患者。Meta分析结果显示:与对照组比较,观察组能降低PDD患者汉密尔顿抑郁量表(HAMD)评分[加权均数差(WMD)=-3.38,95%置信区间(CI)为-4.79~-1.98,P<0.00001]、综合帕金森病评分量表(UPDRS)评分(WMD=-6.67,95%CI为-7.50~-5.84,P<0.00001)、UPDRSⅡ评分(WMD=-2.19,95%CI为-2.61~-1.78,P<0.00001)、UPDRSⅢ评分(WMD=-3.32,95%CI为-3.99~-2.65,P<0.00001),提高总有效率(RR=1.25,95%CI为1.17~1.33,P<0.00001)及血清脑源性神经营养因子(BDNF)水平(WMD=2.47,95%CI为1.03~3.91,P=0.0008)。结论:当前有限证据表明,针刺治疗PDD比较对照组在改善抑郁症状、日常生活和运动功能方面有优势。
