With the development of science and technology and economic society, the role of computer technology in the field of education is becoming more and more obvious. The application of virtual reality technology to sports...
详细信息
Li3V2（PO4）3 samples were synthesized by sol-gel route and high temperature solid-state reaction. The influence of Li3V2（PO4）3 as cathode materials for lithium-ion batteries on electrochemical performances was inve...
详细信息
Li3V2（PO4）3 samples were synthesized by sol-gel route and high temperature solid-state reaction. The influence of Li3V2（PO4）3 as cathode materials for lithium-ion batteries on electrochemical performances was investigated. The structure of Li3Va（PO4）3 as cathode materials for lithium-ion batteries and morphology of Li3V2（PO4）3 were characterized by X-ray diffractometry （XRD） and scanning electron microscopy （SEM）. Electrochemical performances were characterized by charge/discharge and AC impedance measurements. Li3V2（PO4）3 with smaller grain size shows better performances in terms of the discharge capacity and cycle stability. The improved electrochemical properties of Li3V2（PO4）3 are attributed to the refined grains and enhanced electrical conductivity. AC impedance measurements also show that the Li3V2（PO4）3 synthesized by sol-gel route exhibits significantly decreased charge-transfer resistance and shortened migration distance of lithium ions.
With the continuous development of intelligence, the trash cans in life can no longer meet the needs of people. This paper introduces the design of intelligent trash can based on STM32 single-chip microcomputer. The d...
详细信息
At present, since several reasons such as the development of economy, the change of technology, the improvement of people’s living standards and the change of shopping from the pursuit of low prices, buyers pay more ...
详细信息
In order to obtain excellent sinusoidal output voltage and optimize performance of inverters, discrete sliding mode control strategy based on buck-boost inverter is adopted in this paper. Buck-boost photovoltaic inver...
详细信息
In the digital image processing, Otsu algorithm uses the criterion of maximum between-cluster to make image segmentation. In this paper, combined with drug defect detection requirements, the new threshold output funct...
详细信息
An improved multi-objective genetic algorithm is proposed to solve constrained optimization problems. The constrained optimization problem is converted into a multi-objective optimization problem. In the evolution pro...
详细信息
A method for online identifying and processing single variable outliers was proposed based on a three-sliding window-Bayesian method. Generally, the method utilized the characteristic that the flow rate and temperatur...
详细信息
In this paper, a robust centralized fault detection observer is proposed for a three-motor web-winding system. First, the original system model is transformed into a canonical form. Then, based on coordinate change an...
详细信息
ISBN:
(纸本)9781538629185
In this paper, a robust centralized fault detection observer is proposed for a three-motor web-winding system. First, the original system model is transformed into a canonical form. Then, based on coordinate change and high-gain observer theory, a centralized observer is designed to estimate the system states, and the relevant sufficient condition for existence of the centralized observer is derived in terms of the uniform ultimate boundedness(UUB) theorem. Finally, simulation results illustrate the effectiveness of the designed observer.
With the deepening of reform and opening up, China's economic construction level has been greatly improved, and the progress of social economy has enhanced consumers' brand awareness to a certain extent. This ...
详细信息
暂无评论