- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Optical Network Technologies
- Electric Motor Design and Analysis
- Magnetic Bearings and Levitation Dynamics
- Extraction and Separation Processes
- Advanced Fiber Laser Technologies
- Advanced Photonic Communication Systems
- Energy Load and Power Forecasting
- Electromagnetic Compatibility and Noise Suppression
- Fault Detection and Control Systems
- Catalysis and Hydrodesulfurization Studies
- Underwater Vehicles and Communication Systems
- Power Line Communications and Noise
- Supercapacitor Materials and Fabrication
- Microgrid Control and Optimization
- Stock Market Forecasting Methods
- Magnetic Properties and Applications
- Sensorless Control of Electric Motors
- Power Systems and Renewable Energy
- Catalytic Processes in Materials Science
- Market Dynamics and Volatility
- Smart Parking Systems Research
- Maritime Navigation and Safety
- Advanced Data Processing Techniques
Ningbo Institute of Industrial Technology
2023-2024
Chinese Academy of Sciences
2023-2024
China Electronics Technology Group Corporation
2022-2023
Chinese Academy of Agricultural Sciences
2019-2020
Agricultural Information Institute
2019-2020
Ministry of Agriculture and Rural Affairs
2020
China University of Petroleum, Beijing
2019
Nanjing Institute of Technology
2017
North China Electric Power University
2016
Ningbo University
2014
Abstract Short-term forecasting of futures market is valuable and also a technical challenge. In this paper, hybrid approach for soybean oil price proposed based on time-series analysis methods. The method combines wavelet transformation exponential smoothing so that the characteristics time series can be captured at different scales, applied each scale. A comparative case study then conducted compares with other three methods which are an RNN network Long Short-Term Memory units,...
This paper aims to investigate the vibration performance of an axial flux permanent magnet synchronous machine (AFPMSM) with two contra-rotating rotors. A rapid analytical model electromagnetic forces acting on tooth tips AFPMSM is proposed. The nodal distributing teeth are converted into radial, tangential and concentrated forces. Furthermore, force modulation effect stator considered during analysis. On this basis, radial accelerations excited by in different directions obtained compared....
In order to solve the problem of lack maneuverability conventional underwater glider, this paper proposes a hybrid-driven glider equipped with Kappel tip rake propeller, analyzes propulsion performance different types propellers in wake field optimizes overall and realizes self-propulsion gliding high efficiency low energy consumption. research process, Schnerr–Sauer cavitation model simulation strategy VOF two-phase flow were adopted, coupled SST k-ω γ transition turbulence model, control...
STATCOMs provide grid with not only reactive power compensation but auxiliary stability support through exerting influence on the dynamic behavior of Synchronous Generator (SG) during oscillations. In this paper, method electrical torque analysis is utilized to analyze mechanism STATCOM affecting transient performance SG when operates in oscillations suppression mode, and principles various control strategies equivalent inertia, synchronizing damping coefficients are derived. Besides,...
Abstract The grain price, the base of all other prices, is relatively sensitive to policy adjustments. too high minimum purchase prices will lead imbalance market, while decline exert a direct influence on business entities’ expectation market in following year. With early long-grain nonglutinous rice, middle-late round-grain rice and wheat as instances, this article applies stepwise regression model data between 2004 2014 simulate effect 2018 cultivated area yield middle well farmers’...
A differentiator-based photonic approach for the instantaneous microwave frequency measurement (IFM) using a phase modulator and an optical Gaussian filter is proposed experimentally demonstrated. with high resolution achieved by monotonous frequency-to-power mapping obtained differential operation in domain. proof-of-concept experiment has been performed, which error less than ±0.1 GHz over range 0.1-10 input power of 0 dBm The IFM system still ±0.24 GHz, even though signal decreases to -30...
10 kV distribution network topology is complex, along the lines there are many connected power transformer and branch lines, mostly hybrid cases.Its channel transmission characteristics complex variable, which has caused great difficulties to high rate NB-PLC technology frequency selection.Based on urban topology, it emphatically analyzes changes in from carrier source receiving point cases influence rules of length main trunk line, number line location quantity characteristics, provide...
An optical true-time delay generation scheme based on WSS for adaptive null steering is proposed. The system optically-switched fiber TTD technology. Take the advantages of LCoS-based programmable WSS, arbitrary multiple delays to generate nulls can simultaneously be synthesized by control routing radio frequency signal between wavelength selective switches. We simulate with Optisystem and Matlab, results confirm able achieve depth over 50dB.
Low radial electromagnetic force (REF) harmonic is an important way to reduce vibration and noise of permanent magnet synchronous motor (PMSM). For integer slot PMSM, it generally considered that the 0-order slot-frequency main source in low frequency domain. But with surface (PM) mounted rotor, bread type PM, stator skewed larger air gap length applied area, should consider both higher spatial order REF. In this paper, a 16-pole 96-slot studied, subdomain analytical model calculation PM...
Abstract The front cover artwork is provided by the groups of Dr. Chaoquan Hu, Prof. Qingshan Zhu (Institute Process Engineering, Chinese Academy Sciences), and Ding Ma (Peking University, P.R. China). image shows inhibition C=C bond hydrogenation increasing barrier for H atom diffusion to site, on which shares two Pt atoms with bond. Read full text Article at 10.1002/cphc.201900380 .