With the widespread access of nonlinear loads, enterprises and consumers are faced with problem power quality disturbance (PQD) in grid. The detection classification multiple disturbances is considered to be a challenging task. In this paper, novel hybrid method based on Stockwell Transform (ST) Deep Learning proposed detect classify (MPQDs). Compared previous cases where only single or dual PQDs considered, paper fully considers existence MPQDs compounds real situations designs more general...

A NiMn₂O₄ NSs@rGO nanocomposite was successfully fabricated through a facile co-precipitation and thermal treatment process, which exhibits enhanced energy storage performance.

In industrial production processes, rotational speed is a key parameter for equipment condition monitoring and fault diagnosis. To achieve measurement of under high temperature heavy dust, this article proposes digital approach using an electrostatic sensor. The proposed method utilizes strip predetermined material stuck on the shaft which will accumulate charge because relative motion with air. Then sensor mounted near employed to obtain fluctuating signal related rotation charged strip....

Due to the phase concentration, measurement of coal/biomass/air three-phase flow is closely associated with quantity pollutant discharged and combustion efficiency in pneumatic conveying system. This paper proposed a multisensor data fusion technique for online volume concentration coal/biomass pulverized-fuel cofired power plant. The techniques combine electrostatic sensors capacitance incorporates based on an adaptive wavelet neural network (AWNN), gradient descent learning algorithm...

Flexible electrode materials show many advantages and hold great prospects for energy storage application. But, the synthesis processes of these kind are always complicated, low in efficiency high cost. Here, we propose a facile cost-effective two-step strategy flexible by growing ultrathin vertical CoNi2S4 nanosheets on nitrogen-doped carbon foam (CoNi2S4 NSs@NCF). The NCF is obtained direct carbonization melamine foam. When evaluated as binder-free material supercapacitor three-electrode...

A distinctive hierarchical hybrid nanostructure which consists of the ultrathin and vertical NiMn2O4 nanosheets grown on reduced graphene oxide (NiMn2O4 NSs@rGO) is synthesised as a non-enzyme glucose sensor by simple co-precipitation hydrothermal procedure. The structures morphologies NSs@rGO nanocomposites are investigated through X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission (TEM) photoelectron spectroscopy (XPS). Cyclic voltammetry amperometry...

The task of image reconstruction for an electrical capacitance tomography (ECT) system is to determine the permittivity distribution and hence phase in a pipeline by measuring capacitances between sets electrodes placed around its periphery. In view nonlinear relationship limited number independent measurements, ECT ill-posed inverse problem. To solve this problem, new method based on least-squares support vector machine (LS-SVM) combined with self-adaptive particle swarm optimization (PSO)...

This work presents a new methodology for flow regime identification in gas–solid two-phase system. The approach of employs the artificial neural network (ANN) technique, considering applications with electrostatic sensor as measuring device and Hilbert–Huang transformation (HHT) post-processing method. fluctuation signals detected from an are processed using HHT to gain Hilbert marginal spectrums. Then four characteristic parameters spectra extracted input BP identification. They subband...

Electrostatic sensing technology using correlation signal processing offers an approach to the measurement of rotational speed in automatic control system large generators and centrifugal machines. In this article, a double autocorrelation method was proposed improve accuracy robustness on designed test rig. An electrostatic sensor used obtain signals from rotor surface. Then, determined period motion calculated method. At same time, experiments with sampling rates 2ksps (kilo samples per...

In order to eliminate the effects of flow regimes on phase concentration measurements, electrical capacitance tomography (ECT) was employed improve measurement accuracy. The solid particle distribution in pipelines were characterized by measuring obtain patterns. An improved offline iteration online reconstruction (OIOR) algorithm proposed as image for ECT system and a method two-dimension maximum entropy threshold segmentation used further processing. Dynamic experiments carried out...

A non-enzymatic sensor nanomaterial which is composed of ultra-thin scaly CoMn2O4 nanosheets grown on the surface reduced graphene oxide sheets (CoMn2O4 NSs/rGO) has been successfully synthesized by a simple method for glucose sensing. The morphology and elemental composition NSs/rGO are researched means x-ray diffraction, field emission scanning electron microscope, transmission microscope. Cyclic voltammetry amperometry used to analyse oxidation characteristics material. test results show...

The success of cancer chemotherapy is largely dependent on the efficient anticancer drug accumulation in target tumor tissues and cells so as to inhibit proliferation cells. Recently, some biocompatible nanomaterials have been utilized delivery systems shown great potential effectively afford sustained for In this study, we explored possibility bio-application functionalized nickel (Ni) nanoparticles efficiency Ni permeability, cellular uptake leukemia K562 vitro has probed via atomic force...