1)approximate entropy近似熵
1.A novel CHD diagnostic method based on approximate entropy classification;一种基于近似熵特征分类的冠心病诊断方法
2.Comparison of unconsciousness prediction probability with approximate entropy and bispectral index during sedation;脑电近似熵与双频指数在意识消失时预测概率的比较
3.The study of EEG approximate entropy in vascular dementia;血管性痴呆脑电图近似熵的评估作用研究
英文短句/例句
1.Calculation of the Approximate Entropy and the Information Entropy of Financial Data in Phase Space相空间中金融数据近似熵和信息熵的计算
2.Classification of EEG Signal Based on Approximate Entropy基于近似熵的思维脑电信号分类研究
3.ApEn and Cross-ApEn: Property, Fast Algorithm and Preliminary Application to the Study of EEG and Cognition近似熵、互近似熵的性质、快速算法及其在脑电与认知研究中的初步应用
4.A Study of Sleep Brain EEG at Different Stages of Sleep Using Approximate Entropy应用近似熵对睡眠脑电进行分期的研究
5.Research and Application of Approximate Entropy to Fault Diagnosis of Reciprocating Compressor;近似熵在往复式压缩机故障诊断中的研究应用
6.Design and Implementation of a Random Sequence Testing Method of Based Approximate Entropy基于近似熵的随机数检验方法的设计与实现
7.Research on Evaluation Method of Aluminum Alloy Pulse MIG Welding Stability Based on Approximate Entropy基于近似熵铝合金P-MIG焊稳定性评价方法研究
8.Changes of approximate entropy in rats during focal cerebral infarction大鼠脑电近似熵在局灶性脑梗死时的变化
9.Approximate entropy analysis of inctable epilepsy treated with EEG biofeedback基于脑电反馈的难治性癫痫病人的近似熵分析
10.Research on fault diagnosis of equipments using a multi-resolution energy fluctuation-ApEn method多分辨率能量波动-近似熵方法的设备故障诊断研究
11.Observation of cortical electrical activation during aphasic recovery with EEG approximate entropy应用脑电近似熵分析观察失语症恢复过程的皮质电活动
12.AUTOMATIC DETECTION OF EPILEPTIFORM ACTIVITY IN EEG BASED ON MULTI-RESOLUTION AND APPROXIMATE ENTROPY基于多分辨分析和近似熵的脑电癫痫波自动检测
13.Single-Phase Adaptive Reclosure of Transmission Lines Based on EMD and Approximate Entropy基于经验模态分解及近似熵的输电线路单相自适应重合闸
14.New Fault Locating Method Based on Approximate Entropy of Transient Zero-module Current in Non-solidly Earthed Network基于暂态零模电流近似熵的小电流接地故障定位新方法
15.Welding stability pattern recognition used SVM base on approximate entropy of voltage signal基于电压信号近似熵对铝合金脉冲MIG焊过程稳定性SVM模式识别
16.Feature extraction and identification of leak acoustic signal in water distribution pipelines using correlation analysis and approximate entropy基于相关分析和近似熵的管道泄漏声信号特征提取及辨识方法
17.Objective To introduce approximate entropy in the analysis of heart rate variability, and to discuss the changes of the complexity of cardiovascular system during orthosatic standing posture.目的介绍近似熵;并将之应用于心率变异分析,分析立位测试过程中心血管系统复杂性的变化。
18.Comparison of characteristics of moving detrended fluctuation analysis with that of approximate entropy method in detecting abrupt dynamic change滑动去趋势波动分析与近似熵在动力学结构突变检测中的性能比较
相关短句/例句
approximate entropy (ApEn)近似熵
1.approximate entropy (ApEn)and correlation dimension (D 2), were recorded during perioperative periods.方法 20例患者随机均分为异丙酚8mg/(kg·h)组与 10mg/(kg·h)组,记录围术期近似熵与关联维数,常规监测BP、HR、SpO2。
2.The EEG non-linear parameters including approximate entropy (ApEn) and correlation dimension (D 2 ) were recorded during operation periods.记录围术期近似熵与关联维数。
3.The variability of RR intervals (RRI) was analyzed using power spectrum and approximate entropy (ApEn).采用功率谱和近似熵 (approximateentropy ,ApEn)的方法 ,分析清醒家兔在双侧迷走神经保留 ,右、左侧迷走神经切断以及双侧迷走神经同时切断时心搏间期 (RRI)的变化。
3)ApEn近似熵
1.The Study of Stagnation of Liver-Qi Syndrome by the Parameter ApEn of Electroencephalogram Nonlinear Analysis;肝气郁结证患者脑电非线性分析参数近似熵的研究
2.By studying the change of ApEn for surface EMG signals during vibration strength training compared to that during non-vibration strength training, this paper arrives at a conclusion that fatigue appears more slowly during vibration strength training.本文通过比较振动和非振动力量训练过程中表面肌电(sEMG)信号近似熵的变化规律,得出振动力量训练时机体更不容易疲劳的结论,为利用振动刺激恢复和提高肌肉力量提供了进一步的理论和实践依据。
3.In order to study the relationship between the sensitivity of heart to isoprenaline and the Approximate Entropy(ApEn) of heart rate variability, ApEn of RRI (RR interval) in different conditions were analyzed.在正常新西兰兔测得心搏间期近似熵较大 ,阿托品阻断后心搏间期近似熵下降的基础上 ,观察兔心脏在上述两种状态下对异丙肾上腺素反应的差距。
4)approximate entropy(ApEn)近似熵
1.In order to classify five different kinds of mental tasks,approximate entropy(ApEn),an index of complexity,is calculated from six channels EEG and serve as input feature vector to a neural network.以近似熵为指标,分别计算6导脑电信号的复杂度,作为神经网络分类器的输入特征向量,对5种思维任务进行分类识别。
2.The concept,main characteristic and the algorithm of approximate entropy(ApEn) are introduced firstly.介绍了近似熵的概念、主要特点及其算法,提出了基于近似熵的特征提取方法,并且讨论了近似熵值计算中3个参数的选择原则,并对发动机声信号进行了分析处理。
3.Methods The non-linear statistical method to measure the time series complexity-approximate entropy(ApEn) was used.方法利用一种度量时间序列复杂性的非线性统计方法——近似熵(ApEn)方法。
5)HHT approximate entropyHHT近似熵
6)entropy approximate limit熵近似限
延伸阅读
鲍林近似能级图. 鲍林近似能级图（1）对于氢原子或类氢离子(如he＋ 、li2＋)原子轨道的能量：l 原子轨道的能量e随主量子数n的增大而增大，即e1s<e2s<e3s<e4s；l 而主量子数相同的各原子轨道能量相同，即e4s＝e4p＝e4d＝e4f。（2）多电子原子轨道能级图1939 年，鲍林(pauling，美国化学家)根据光谱实验的结果，提出了多电子原子中原子轨道的近似能级图，又称鲍林能级图。a) 近似能级图按原子轨道能量高低排列。b) 能量相近的能级合并成一组，称为能级组，共七个能级组，原子轨道的能量依次增大，能级组之间能量相差较大而能级组之内能量相差很小。c) 在近似能级轨道中，每个小圆圈代表一个原子轨道。d) 各原子轨道能量的相对高低是原子中电子排布的基本依据。e) 原子轨道的能量：l相同时，主量子数n 越大能量越高。原子轨道的近似能级图主量子数n 相同，角量子数l越大能量越高，即发生“能级分裂”现象。例如：e4s< e4p < e4d < e4f当主量子数 n和角量子数 同时变动时，发生“能级交错”。例如：“能级交错”和“能级分裂”现象都是由于“屏蔽效应”和“钻穿效应”引起的。屏蔽效应：a.内层电子对外层电子的作用；b.有效核电荷z*；c.屏蔽系数σ；z*=z-σ各电子层电子屏蔽作用的大小顺序为：k > l > m > n > o > p ……屏蔽效应使原子轨道能量升高。l 钻穿效应：外层电子钻到内部空间而靠近原子核的现象，通常称为钻穿作用。由于电子的钻穿作用的不同而使它的能量发生变化的现象称为钻穿效应，钻穿效应使原子轨道能量降低。
