Multimodal spellers combining visual and auditory stimulation have recently gained more attention in ERP-based Brain-Computer Interfaces(BCIs).Most studies found an improved efficiency compared to uni
In electromyography pattern-recognition-based control of a multifunctional prosthesis,it would be inevitable for the users to unintentionally perform some classes of movements that are excluded from t
The liver is the largest organ in our body,and our lives will be threatened if our livers do not work.The artificial liver support system may bridge patients to liver transplantation due to the system
针对现有生物芯片图像倾斜校正算法校正精度和运算速度的矛盾问题，提出对矩形样点和圆形样点图像分别采用改进的Hough变换和改进的Radon变换方法进行倾斜校正。改进的Hough变换首先对图像进行二值化，并仅统计矩形样点的上下边缘像素的Hough参数和累计值，然后根据所得的Hough参数空间提取占主导的直线组，最终计算出直线组的平均倾斜角度；改进的Radon变换在提取圆形样点边缘后，对边缘图像进行二级
目的：研制一款便携式额面体温及心率监测仪,实现体温及心率的持续动态监测.方法：额面温度及环境温度分别采用数字温度传感器TSIC506与DS18B20进行采集,输入单片机CC2541中,经环境温度补偿方法及标定后,推算出人体标准温度值；脉搏信号由光电式脉搏传感器Pulse Sensor采集后进行滤波放大,输入单片机中,经片内A/D转换及心率检测算法计算后得到心率值.体温及心率值最终输出至LCD屏实时
Effective user training could help us to improve the discrimination performance of our intention in brain computer interface(BCI).The purpose of this study is to explore better training method to faci
Background: Selecting an appropriate number of surface electromyography(EMG)channels with the desired classification performance and determining the optimal placement of EMG electrodes would be necess
Multiple wavelet hypothesis and fibrillatory conduction are believed to be atrial fibrillations pathogenesis.Radio frequency ablation(RFA)technique,a therapy for atrial fibrillation(AF),applies radio
When using HIFU to ablate a tumor with large volume,numerous sonications are necessary to cover the whole treatment area in the traditional scanning method with single focus,because the focal size of
目的：本研究模拟了一款镍钛合金伞状脑保护装置在径向压握、自膨胀释放及血压作用下的情况，并对模型结构在各个接触载荷下的力学性能进行分析.方法：建立了伞状脑保护装置、压握工具以及目标血管的有限元模型.对圆柱状压握工具施加向内的径向位移沿R轴正方向施加大小为2.0mm的位移载荷，压握伞状脑保护装置至外径为2.0mm；将压握工具恢复到原始尺寸，建立血管/远端保护器接触关系；对伞状脑保护装置两端截面在轴向和