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Exact and fast automatic analyses of electrocardiogram (ECG) signal is critical for the computer based diagnosis of cardiac diseases, which has attracted many researches' attentions in recent years. In the present study, a novel QRS complex detection approach based on differential threshold method was proposed, which was designed as three analysis steps of an improved differential processor, a detector...
Poisoning attack in which an adversary misleads the learning process by manipulating its training set significantly affect the performance of classifiers in security applications. This paper proposed a robust learning method which reduces the influences of attack samples on learning. The sensitivity, defined as the fluctuation of the output with small perturbation of the input, in Localized Generalization...
This work is to calculate the dc characteristics and investigate the internal quantum efficiencies of β-FeSi2-based DH LED and AlGaAs/GaAs DH LED by analytical methods. The internal quantum efficiencies are decreased as the applied forward-bias voltages are increased. When the intrinsic layer thicknesses and doping concentrations are increased, the internal quantum efficiencies will also increase...
Fatigue is a status of human brain activities, and driving fatigue detection is a topic of great interest all over the world. In this paper, we propose a measure of fatigue produced by eye tracking glasses, and use it as the ground truth to evaluate driving fatigue detection algorithms. Particularly, PERCLOS, which is the percentage of eye closure over the pupil over time, was calculated from eyelid...
Various studies have shown that the traditional electrooculograms (EOGs) are effective for driving fatigue detection. However, the electrode placement of the traditional EOG recording method is around eyes, which may disturb the subjects' activities, and is not convenient for practical applications. To deal with this problem, we propose a novel electrode placement on forehead and present an effective...
Model predictive control (MPC) is an emerging control technique which can include the multiple control objectives, nonlinearities and system constraints easily. The main drawback of MPC for modular multilevel converter (MMC) application is its large computation, since the high level MMC has huge combination of switching states. Choosing the weighting factors of the cost function for MMC is also very...
This paper presents an automatic deblurring approach for motion blur images. The approach explores the prior of the intensity and gradient to estimate the motion blur kernel from single blurred image. In this way, motion blur kernel could be well estimated not only on daytime images, but also on nighttime images. Efficient optimization method was given for the prior-based approach. Besides, a cost-effective...
Since the inability of clinical approaches to measure the shock-induced electric field distribution of internal cardiac defibrillation, current clinical applications of the implantable cardioverter defibrillator (ICD) still stay largely empirical. In this study, a finite element modeling and simulation method for solving internal cardiac defibrillation field was proposed. Using this method, the defibrillation...
The effect of electromigration (EM) on the tensile strength of Cu/Sn-9Zn/Cu solder interconnects was investigated under a current density of 5×103 A/cm2 at 150 °C. After aging and EM, the thickness of interfacial IMCs increased. The IMC layer at the cathode side was thicker than that at the anode side for the samples after EM. Compared with the as-soldered interconnects, the tensile strength of those...
The heat transfer characteristic of cooling microchannels and thermal vias integrated in low temperature co-fired ceramic (LTCC) multilayer electronic packaging substrate have been investigated by finite volume simulation method, including straight, spiral and I-shaped fractal microchannels. The width of microchannel is 200 microns and the height is about 186 microns. The side length of Cu thermal...
The spray distribution of field operation pesticide spraying machine, not only is affected by the shape of the nozzle, nozzle pressure and wind speed around the crop environment, but also has certain indispensable link to spraying equipment and carrying machine motion state. The robot uses the wheel speed sensor to accurately measure the state of motion sprayer, and uses a real-time sensor to monitor...
On the basis of Lu's syndrome-based decoding algorithm, we propose an improved decoding algorithm for turbo product code, which has lower complexity and latency. On one hand, the proposed algorithm further reduces the computational complexity and the decoding latency by simplifying the calculation of syndrome and selecting a proper number of least reliable bits. On the other hand, this algorithm obtains...
Many studies have shown that Multiple Classifier Systems (MCSs) are more robust than single classifiers to evasion attacks for linear classifiers. However, to the best of our knowledge, the robustness of MCSs for non-linear classifiers has not been inves-tigated. This paper attempts to discuss two issues experimentally including a MCS is still more robust than a single classifier for non-linear classifiers,...
To make automatic external defibrillators (AEDs) easy to use by the public who is not familiar with emergency treatment and electrocardiogram (ECG) analysis, it is critical to have an accurate shockable rhythm recognition algorithm. This paper presents a novel compositive algorithm by combining a slope variability analyzer with a band-pass digital filter so as to accurately distinguish shockable rhythms...
The effect of electromigration (EM) on the tensile strength of Cu/Sn-9Zn/Cu solder interconnects was investigated under a current density of 5×103 A/cm2 at 150 °C. After aging and EM, the thickness of interfacial IMCs increased. The IMC layer at the cathode side was thicker than that at the anode side for the samples after EM. Compared with the as-soldered interconnects, the tensile strength of those...
The heat transfer characteristic of cooling microchannels and thermal vias integrated in low temperature co-fired ceramic (LTCC) multilayer electronic packaging substrate have been investigated by finite volume simulation method, including straight, spiral and I-shaped fractal microchannels. The width of microchannel is 200 microns and the height is about 186 microns. The side length of Cu thermal...
A static var compensator was developed using a light-triggered thyristor (LTT) with a self-protection function. This paper describes the development of 200-Mvar class thyristor switched capacitors (TSCs) type with LTTs, which are useful for the recovering system voltage after an AC system fault. However, protection of the TSC is achieved not by the self-protection function of the LTT but by an arrester...
In this paper, the master board of CCD controller is designed for scientific CCD imaging system. The master controller board with FPGA control center, provides all of the timing clock to the clock and bias board and the data acquisition board which connect to the CPCI backplane, and USB3.0 high-speed serial bus and fiber optic interface.
A data transmission and time measurement system for bit commitment experiment is introduced in this paper. The design is for requirement of fast data transmission and time measurement of bit commitment experiment including high bandwidth data transmission, storage, real time processing with FPGA, USB 2.0, FPGA-based TDC and TDC-GPX for time measurement. The system is applied in the bit commitment...
For burst communications in low SNR circumstance, we present a soft-decision frame synchronization algorithm based on pseudo-noise sequence. This algorithm can establish synchronization rapidly, with low SNR threshold and flexible configuration for parameters. The probability computing formulas of missing detection and false detection, expressed by the length of frame header and the decision threshold,...
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