To resolve the impact of transient high frequency signals induced by lightning stroke on the travelling wave protection of transmission line, a novel identification algorithm is proposed. Using the characteristics of ...To resolve the impact of transient high frequency signals induced by lightning stroke on the travelling wave protection of transmission line, a novel identification algorithm is proposed. Using the characteristics of symmetric current wave-form induced by lightning stroke without causing fault and that of asymmetric current waveform generated by fault within a very short time interval, the waveform of transient current above and below time-axes are integrated respec-tively. First, through comparing the relative ratio of them with threshold value, the primary criterion identifying fault and lightning stroke is constructed;Secondly, to improve the reliability of discrimination between lightning stroke with and without causing fault, according to the difference of them, the secondary criterion is also defined. The simulation results and analysis demonstrate that the proposed integral criterions are valid and correct.展开更多
目的:探讨温通柔筋法结合泻阴补阳针刺法治疗脑卒中后上肢痉挛性偏瘫患者的临床效果。方法:选取2021年1月-2022年9月泰安市中医医院收治的脑卒中后上肢痉挛患者92例,随机分为对照组和观察组,各46例。两组患者均给予常规内科治疗+康复训...目的:探讨温通柔筋法结合泻阴补阳针刺法治疗脑卒中后上肢痉挛性偏瘫患者的临床效果。方法:选取2021年1月-2022年9月泰安市中医医院收治的脑卒中后上肢痉挛患者92例,随机分为对照组和观察组,各46例。两组患者均给予常规内科治疗+康复训练,对照组在常规治疗基础上,予泻阴补阳针刺法治疗,观察组在对照组基础上另予温通柔筋法治疗,疗程均为8周。比较两组治疗前、治疗8周后改良Ashworth量表(modified Ashworth scale,MAS)、Fugl-Meyer运动功能评定量表上肢部分(Fugl-Meyer assessment of the upper extremity,FMA-UE)评分、改良Barthel指数(modified Barthel index,MBI)及肌电图F波波幅、潜伏期,并记录两组不良反应。结果:治疗8周后,两组MAS分级及F波波幅、潜伏期均较治疗前明显降低,且观察组均明显低于对照组(P<0.05);治疗8周后,两组FMA、MBI评分均较治疗前明显提高,且观察组评分均高于对照组(P<0.05);两组均未出现不良反应。结论:温通柔筋法结合泻阴补阳针刺法可明显改善脑卒中后上肢痉挛程度,提高运动功能和日常生活自理能力。展开更多
文摘To resolve the impact of transient high frequency signals induced by lightning stroke on the travelling wave protection of transmission line, a novel identification algorithm is proposed. Using the characteristics of symmetric current wave-form induced by lightning stroke without causing fault and that of asymmetric current waveform generated by fault within a very short time interval, the waveform of transient current above and below time-axes are integrated respec-tively. First, through comparing the relative ratio of them with threshold value, the primary criterion identifying fault and lightning stroke is constructed;Secondly, to improve the reliability of discrimination between lightning stroke with and without causing fault, according to the difference of them, the secondary criterion is also defined. The simulation results and analysis demonstrate that the proposed integral criterions are valid and correct.
文摘目的观察恢刺联合超声引导下冲击波对卒中后痉挛(post-stroke spasticity,PSS)患者肌张力和运动功能的影响。方法将96例PSS患者随机分为观察组和对照组,每组48例。对照组给予超声引导下体外冲击波(extra-corporeal shock wave therapy,ESWT)治疗,观察组在对照组基础上采用恢刺阳陵泉穴治疗。观察两组治疗前后改良Ashworth量表(modified Ashworth scale,MAS)、Wolf运动功能测试(Wolf motor function test,WMFT)、功能综合评定(functional comprehensive assessment,FCA)量表、肌电均方根值(root mean square,RMS)和积分肌电值(integrated electromyogram,iEMG)变化。结果两组治疗后肌张力评分等级分布优于治疗前(P<0.05),且观察组等级分布优于对照组(P<0.05)。治疗后,两组WMFT评分均高于治疗前(P<0.05),且观察组高于对照组(P<0.05);两组FCA日常生活功能、认知功能及总分高于治疗前(P<0.05),且观察组高于对照组(P<0.05);两组RMS、iEMG低于治疗前(P<0.05),且观察组低于对照组(P<0.05)。结论恢刺联合超声引导下冲击波治疗PSS效果显著,可有效改善肌电生理指标、肌张力及运动功能,提高日常生活能力及认知水平。
文摘目的:探讨温通柔筋法结合泻阴补阳针刺法治疗脑卒中后上肢痉挛性偏瘫患者的临床效果。方法:选取2021年1月-2022年9月泰安市中医医院收治的脑卒中后上肢痉挛患者92例,随机分为对照组和观察组,各46例。两组患者均给予常规内科治疗+康复训练,对照组在常规治疗基础上,予泻阴补阳针刺法治疗,观察组在对照组基础上另予温通柔筋法治疗,疗程均为8周。比较两组治疗前、治疗8周后改良Ashworth量表(modified Ashworth scale,MAS)、Fugl-Meyer运动功能评定量表上肢部分(Fugl-Meyer assessment of the upper extremity,FMA-UE)评分、改良Barthel指数(modified Barthel index,MBI)及肌电图F波波幅、潜伏期,并记录两组不良反应。结果:治疗8周后,两组MAS分级及F波波幅、潜伏期均较治疗前明显降低,且观察组均明显低于对照组(P<0.05);治疗8周后,两组FMA、MBI评分均较治疗前明显提高,且观察组评分均高于对照组(P<0.05);两组均未出现不良反应。结论:温通柔筋法结合泻阴补阳针刺法可明显改善脑卒中后上肢痉挛程度,提高运动功能和日常生活自理能力。
