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Patient cohort discovery across heterogeneous data sources is a challenging task, which may involve a complicated process of data loading, harmonization, and querying. Most existing cohort identification tools use a relational database model implemented in SQL for storing patient data. However, SQL databases have restrictions on the maximum number of columns in a table, which necessitates the breaking...
Sudden Unexpected Death in Epilepsy (SUDEP) is the leading mode of epilepsy-related death and is most common in patients with intractable, frequent, and continuing seizures. Magnetic Resonance Imaging (MRI) and other neuroimaging techniques create an important data source for investigators to collaborate and share a larger cohort of potential SUDEP patient data. To address the challenges of sharing...
We present a surface textured Si SPAD with improved detection efficiency and without sacrificing dark count rate or jitter distribution. Texturing reduces reflection, allows weak light trapping and is CMOS and lithography compatible.
The unified Parkinson's disease rating scale (UPDRS) is the most widely employed scale for tracking Parkinson's disease (PD) symptom progression. However, conventional way to achieve UPDRS, mainly based on the physical examinations of clinic patients performed by the trained medical staffs, involves the disadvantages of inconvenience and high medical expense. Hence, in this study, we try to explore...
Recently, with the obvious increasing number of cardiovascular disease, the automatic classification research of Electrocardiogram signals (ECG) has been playing a significantly important part in the clinical diagnosis of cardiovascular disease. In this paper, a 1D convolution neural network (CNN) based method is proposed to classify ECG signals. The proposed CNN model consists of five layers in addition...
Based on the analysis of the existing problems of photovoltaic(PV) systems with energy storage devices, the new modular independent PV power supply combined the PV cell and energy storage module was designed which contains the following five parts: the PV array, Battery module, Boost circuit, Buck circuit and the controller. The maximum power point tracking(MPPT) is located by the strategy of combining...
The emergence of medical social media has made it possible for more and more patients to share their views and experiences on the medical care platform. These subjective texts contains patients' evaluation information for doctors and can be analyzed to provide rich decision-making information for patients and hospitals. Therefore, we propose a LSTM (Long Short Term Memory) based text sentiment classification...
The paper has presented a new augmented buck converter to improve its transient performance. At first, an augmentation circuit based on diode-capacitor topology is introduced. The voltage across the inductor can be increased during load transients, and the rate of inductor current can be higher compared with conventional buck converters. Then, a hysteresis control algorithm based on output voltage...
Accurate hand-eye calibration is a very significant task in robotics. Many algorithms focus on L optimization, and Least Square Estimation (LSE) is usually employed to deal with this problem. For the reason that LSE can only be applied to occasions that errors obey normal distribution, LSE can lead to a lower precision of calibration result when gross errors occur. Different from the existing approaches,...
An attitude tracking control scheme based on non-singular terminal sliding mode and double power reaching law is proposed for near space vehicle in presence of unknown compound disturbance. In addition, nonlinear disturbance observer is designed to estimate the compound disturbance. Furthermore, Lyapunov function method is used to prove the stability and feasibility of the method. Finally, simulation...
Titanium dioxide thin films have been widely investigated as sensing material in various thin-film gas sensors. In this research, pure anatase TiO2 thin films were fabricated with a novel mist chemical vapor deposition (mist CVD) method. The effects of deposition temperature and thermal annealing on the structural properties of TiO2 thin films were investigated. It was found that the crystallinity...
This paper collected and classified the failure modes and mechanisms of quartz crystals from actual engineering application. Through related failure analysis cases, combined with scanning electron microscopy and energy spectrum analysis, failure analysis results of quartz crystals of common failure mechanism were presented and studied. The quality and process controlling and reliability screening...
In order to evaluate the efficiency of system communication network in energy internet, the evaluation index system should be established firstly. There is no unified standard for the efficiency evaluation index system of complex power electronics system based on Software Defined Network (SDN) now. The function of SDN in complex power electronics system is introduced in this paper and the characteristics...
In fact, in arid environment such as desert, dew plays an important role to some vegetation and ecosystem[1]. Dew can help the vegetation restore from excessive water loss state[2]. In addition, dew is an important water source for some microorganism[3], insects and small animals. In particular, the distribution of dew may influence on remotely sensed measurements[4] and remote sensing parameters...
The measurement of enamel mechanical properties offers great significance for the design, development and evaluation of clinical dental restorative materials. In this paper, resonant ultrasound spectroscopy (RUS) was proposed to measure the full second-order elastic tensor of human enamel specimens, and the mechanical parameters of human enamel, including Young's moduli, shear moduli and Poisson's...
This paper investigates the distributed finite-time tracking consensus problem of Networked Euler-Lagrange (EL) Systems with uncertainties. Based on the homogeneous finite-time control algorithm, the discontinuous and continuous super-twisting protocols upon integral sliding mode algorithm are respectively developed to achieve finite-time tracking consensus of Networked EL Systems in spite of the...
This paper is concerned with the sliding mode control of decaying-dimerizing system with three molecular species and four reaction channels. An integral sliding surface is designed, and the resulting dynamics is a nonlinear biochemical reaction system. By introducing some specified matrices, a sufficient condition is proposed in terms of strict linear matrix inequality (LMI), which guarantees the...
Pedestrian's attitude solution plays an important role in a lot ofapplication areas. For the problem ofthe pedestrian's wearable attitude solution, two kinds of wearable methods, chest-wom and waist-worn, are proposed with a novel combination method including Zero momentary attitude detection + Geomagnetic correction + Third-order Taylor expansion quaternion update algorithm (ZGT) to resolve the pedestrian's...
Competitive swarm optimizer (CSO) has shown promising results for solving large scale global optimization problems proposed recently. However, CSO shows insufficient exploitation of the population. In this paper, a competitive swarm optimizer integrated with Cauchy and Gaussian mutation (CGCSO) is proposed for large scale optimization. The new algorithm does not only update the losers' positions with...
Underwater wireless sensor networks (UWSNs) can provide a promising solution to underwater target tracking. However, due to the limited energy and bandwidth resources of UWSNs, only a small part of nodes are allowed to track underwater target at each time step. As far as we know, almost all the existing node selection schemes assume the communication channel between a node and the fusion center is...
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