[Research on electrical impedance tomography for pediatric pneumonia based on an improved radial basis function neural network]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWang R +5 more
europepmc +1 more source
[End-to-end digital holographic phase reconstruction using an improved convolutional neural network]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiXiong Z, Zhou J, Tang B, Wang Z, Wang X.
europepmc +1 more source
基于GSWOA-VMD-SE的小电流故障电弧声信号特性与降噪研究
Gaoya dianqi小电流接地配电网故障难以准确识别，而基于电弧声信号检测技术可获取电弧的声信号特征以进行故障识别，但在采集过程中受电磁噪声、环境噪声等因素的干扰，需要对其进行降噪处理。为了解决降噪过程中最优分解参数难以确定、计算效率低及对非线性信号降噪效果差的问题，从而有效滤除噪声，保证信号的质量，提出了一种基于GSWOA-VMD-SE的配网故障电弧声感降噪方法。首先，利用引入惯性权重策略的鲸鱼算法(GSWOA)对变分模态分解(VMD)的分解参数进行寻优，提高了最优参数计算速度及精度；然后 ...
刘凯 +5 more
doaj
[Theoretical system of brain-computer interface for basic research]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiFu Y +7 more
europepmc +1 more source
为研究桥建分离高铁车站噪声声场特性，解决该类型车站站台在列车快速经过时噪声值过大不满足铁路车站相关标准的问题，以国内某城市新建桥建分离高铁车站为研究对象，分别开展不同工况下列车通过时的噪声测试；基于周期性结构理论与2.5D声学边界元法，建立桥建分离高铁车站噪声预测模型，并与实测数据进行对比验证。基于测试结果和预测结果，研究了不同工况下列车经过车站时的噪声特性，分析了桥建分离高铁车站噪声声场特性，提出了车站降噪的不同方案，并对各方案降噪效果加以比较进而确定更优降噪方案。研究结果表明 ...
成功 +5 more
core +1 more source
Zhongguo tingli yuyan kangfu kexue zazhi公共交通噪声是指交通工具运行时产生的妨害人们正常生活和工作的声音。分为机动车噪声、飞机噪声、火车噪声等。一般指机动车辆在城市内交通干线上行驶时产生的噪声。在飞速发展的时代，因公共交通造成的听力损失不容小觑。造成听力损失的公共交通来源广泛，如公交车、地铁等，听力损失的占比也有初步统计，目前探究的可能影响因素有工龄和身体的健康情况等，可能的机制有声波对内耳机械刺激以及氧化应激等。听力损失的防治也主要是通过管理和保护措施来控制噪声源、切断噪声传播途径和加强个人防护等 ...
司文静, 李博, 马小卫
doaj
[Research progress on the acquisition technology of magnetocardiography]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiKang B +5 more
europepmc +1 more source
[A method for predicting neurological outcomes after cardiac arrest based on time-frequency domain feature fusion]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWang X +5 more
europepmc +1 more source
[A white matter hyperintensity segmentation model combining 2.5-dimensional spatial context and frequency-domain prior information]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiBai P, Wang Y, Liu Q, Chen X, Ren Y.
europepmc +1 more source
[Research progress on generative adversarial network-based CBCT-to-CT synthesis with multidimensional constraints]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYang W, Kang J, Keung S.
europepmc +1 more source