Background:To evaluate the efficacy of stent-assisted coiling(SAC)for the treatment of carotid ophthalmic segment aneurysm segment aneurysms(OSAs)of the internal carotid artery(ICA)through detailed long-term follow-up...Background:To evaluate the efficacy of stent-assisted coiling(SAC)for the treatment of carotid ophthalmic segment aneurysm segment aneurysms(OSAs)of the internal carotid artery(ICA)through detailed long-term follow-up of a large patient cohort.Methods:We retrospectively analyzed 88 consecutive patients with OSAs between January 2009 and January 2020 at our center.Angiographic results were evaluated using the modified Raymond grading system and clinical outcomes were evaluated using the mRS scale.The primary endpoints were major aneurysm recurrence and poor clinical outcomes for at least 18 months of follow-up.The patients were asked to attend clinical follow-up assessments and possibly undergo DSA or MR via telephone.Results:We enrolled 88 patients with 99 OSAs treated with coiling,of whom 76 were treated with SAC.The coiling procedures were successful in all 88 patients.Overall,complications occurred in 8 patients(9.1%).No procedure-related mortality was observed.67(76.1%)experienced immediate aneurysm occlusion at the end of the procedure.Long-term angiographic follow-up(18 months)was available in 45/88 aneurysms(51%)(average 18.7±5.2 months).Four patients continued their follow-up for 5 years after initial aneurysm treatment.After a clinical follow-up time of 28.7 months(range,12-51 months),85 patients(95.5%)achieved favorable clinical outcomes(mRS scores of 0-2).Conclusions:This study indicates that SAC treatment is a safe and effective therapeutic alternative for ruptured and unruptured OSAs.The procedural risks are low with relatively long-term effectiveness.展开更多
在无线电能传输(wireless power transfer,WPT)系统中,偏移是不可避免的,偏移会引起系统参数的变化从而影响系统的传输性能。基于S-S和P-S补偿拓扑,提出一种具有抗偏移特性的双耦合SP-S补偿的紧凑型WPT系统。该系统采用两个同轴布置、...在无线电能传输(wireless power transfer,WPT)系统中,偏移是不可避免的,偏移会引起系统参数的变化从而影响系统的传输性能。基于S-S和P-S补偿拓扑,提出一种具有抗偏移特性的双耦合SP-S补偿的紧凑型WPT系统。该系统采用两个同轴布置、相互解耦的圆角方形线圈作为能量的发射线圈,其与单一方形接收线圈均有耦合,提升了X方向和Y方向的抗偏移容忍度。通过谐振参数配置使接收线圈在偏移的过程中,一个线圈回路的输出增加,另一个线圈回路输出减少,从而使系统输出随接收线圈位置偏移波动平缓。提出方形解耦线圈结构参数的设计方法,并分析发射端并联补偿电容对输出抗偏移性能的影响。最后,搭建实验平台验证该方法的有效性与系统的抗偏移能力。展开更多
The dual-frequency capacitively coupled plasma （DF-CCP） with inductive enhancement system is a newly designed plasma reactor. Different from the conventional inductively coupled plasma （ICP） reactors, now a radio ...The dual-frequency capacitively coupled plasma （DF-CCP） with inductive enhancement system is a newly designed plasma reactor. Different from the conventional inductively coupled plasma （ICP） reactors, now a radio frequency （rf） power is connected to an antenna placed outside the chamber with a one-turn bare coil placed between two electrodes in DF-CCP. This paper gives a detailed description of its structure of discharges in this apparatus were made via a Moreover, investigations on some characteristics Langmuir probe.展开更多
移动式无线电能传输(wireless power transfer, WPT)需根据车辆的实时位置,切换不同的发射线圈,确定车辆的位置是实现移动式WPT的关键。为实现车辆位置的实时检测,设计了一种移动式双通道WPT系统,其中能量传输通道用于传输主能量,位置...移动式无线电能传输(wireless power transfer, WPT)需根据车辆的实时位置,切换不同的发射线圈,确定车辆的位置是实现移动式WPT的关键。为实现车辆位置的实时检测,设计了一种移动式双通道WPT系统,其中能量传输通道用于传输主能量,位置检测通道用于实时检测车辆位置。为研究WPT系统双通道间的相互干扰的问题,建立了四线圈耦合模型,解耦双通道四线圈间的干扰,确定位置检测通道频率,提出弱感性微失谐补偿方案,在不影响系统性能的条件下,降低发射端空载电流。通过理论推导、仿真分析等手段,对相关内容开展研究,并通过实验验证该频率下双通道间的干扰处于可接受范围,弱感性微失谐补偿方案可行有效。展开更多
基金supported by grants from the National Natural Science Foundation of China,grant no. 81370041, 81771233, 81671655the Outstanding Clinical Discipline Project of Shanghai Pudonggrant no.PWYgy2018-04.
文摘Background:To evaluate the efficacy of stent-assisted coiling(SAC)for the treatment of carotid ophthalmic segment aneurysm segment aneurysms(OSAs)of the internal carotid artery(ICA)through detailed long-term follow-up of a large patient cohort.Methods:We retrospectively analyzed 88 consecutive patients with OSAs between January 2009 and January 2020 at our center.Angiographic results were evaluated using the modified Raymond grading system and clinical outcomes were evaluated using the mRS scale.The primary endpoints were major aneurysm recurrence and poor clinical outcomes for at least 18 months of follow-up.The patients were asked to attend clinical follow-up assessments and possibly undergo DSA or MR via telephone.Results:We enrolled 88 patients with 99 OSAs treated with coiling,of whom 76 were treated with SAC.The coiling procedures were successful in all 88 patients.Overall,complications occurred in 8 patients(9.1%).No procedure-related mortality was observed.67(76.1%)experienced immediate aneurysm occlusion at the end of the procedure.Long-term angiographic follow-up(18 months)was available in 45/88 aneurysms(51%)(average 18.7±5.2 months).Four patients continued their follow-up for 5 years after initial aneurysm treatment.After a clinical follow-up time of 28.7 months(range,12-51 months),85 patients(95.5%)achieved favorable clinical outcomes(mRS scores of 0-2).Conclusions:This study indicates that SAC treatment is a safe and effective therapeutic alternative for ruptured and unruptured OSAs.The procedural risks are low with relatively long-term effectiveness.
文摘在无线电能传输(wireless power transfer,WPT)系统中,偏移是不可避免的,偏移会引起系统参数的变化从而影响系统的传输性能。基于S-S和P-S补偿拓扑,提出一种具有抗偏移特性的双耦合SP-S补偿的紧凑型WPT系统。该系统采用两个同轴布置、相互解耦的圆角方形线圈作为能量的发射线圈,其与单一方形接收线圈均有耦合,提升了X方向和Y方向的抗偏移容忍度。通过谐振参数配置使接收线圈在偏移的过程中,一个线圈回路的输出增加,另一个线圈回路输出减少,从而使系统输出随接收线圈位置偏移波动平缓。提出方形解耦线圈结构参数的设计方法,并分析发射端并联补偿电容对输出抗偏移性能的影响。最后,搭建实验平台验证该方法的有效性与系统的抗偏移能力。
基金supported by ITER Project （Nos. 2010GB106000,2010GB106009） National Natural Science Foundation of China （Nos. 10975106, 11175126, 11075114, 11204266）+1 种基金 Qing Lan Project, the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions The Program for Graduates Research ＆： Innovation in University of Jiangsu Province, China （No. CXZZ 11-0085）
文摘The dual-frequency capacitively coupled plasma （DF-CCP） with inductive enhancement system is a newly designed plasma reactor. Different from the conventional inductively coupled plasma （ICP） reactors, now a radio frequency （rf） power is connected to an antenna placed outside the chamber with a one-turn bare coil placed between two electrodes in DF-CCP. This paper gives a detailed description of its structure of discharges in this apparatus were made via a Moreover, investigations on some characteristics Langmuir probe.
文摘移动式无线电能传输(wireless power transfer, WPT)需根据车辆的实时位置,切换不同的发射线圈,确定车辆的位置是实现移动式WPT的关键。为实现车辆位置的实时检测,设计了一种移动式双通道WPT系统,其中能量传输通道用于传输主能量,位置检测通道用于实时检测车辆位置。为研究WPT系统双通道间的相互干扰的问题,建立了四线圈耦合模型,解耦双通道四线圈间的干扰,确定位置检测通道频率,提出弱感性微失谐补偿方案,在不影响系统性能的条件下,降低发射端空载电流。通过理论推导、仿真分析等手段,对相关内容开展研究,并通过实验验证该频率下双通道间的干扰处于可接受范围,弱感性微失谐补偿方案可行有效。
