A5101886172- Silicon Carbide Semiconductor Technologies
- Electromagnetic Compatibility and Noise Suppression
- Multilevel Inverters and Converters
- Advanced DC-DC Converters
- Microbial Community Ecology and Physiology
- Actinomycetales infections and treatment
- Induction Heating and Inverter Technology
- Energy Harvesting in Wireless Networks
- Mycobacterium research and diagnosis
- Electrostatic Discharge in Electronics
- Infectious Disease Case Reports and Treatments
- Synthesis and Biological Evaluation
- Image and Video Stabilization
- Plant Water Relations and Carbon Dynamics
- Optical Systems and Laser Technology
- Environmental and Agricultural Sciences
- High-Voltage Power Transmission Systems
- Electric Power Systems and Control
- Wireless Power Transfer Systems
- Fungal Biology and Applications
- Protist diversity and phylogeny
- Climate variability and models
- Machine Fault Diagnosis Techniques
- Mycorrhizal Fungi and Plant Interactions
- Carbohydrate Chemistry and Synthesis
Xiaomi (China)
2024
Beijing Normal University
2024
Tsinghua University
2009-2019
Hebei University of Technology
2013-2017
North China Electric Power University
2017
Harbin Institute of Technology
2015
SiC mosfets allow a higher frequency, lighter weight inverter over their Si counterparts for electric vehicle (EV) applications. However, using SiC-based EV traction inverters is likely to increase the shaft voltage in an ac motor drive system, which significantly affects reliability of system. This paper investigates impact high-speed switching devices and high frequency on common-mode (CMV) voltage. It theoretically illustrated experimentally demonstrated that increases amplitude voltage,...
A previously unknown symbiotic fungus DT06 has been isolated from the single-celled blue-green alga Chroococcus sp. The sequences of ITS1, 5.8S rDNA and ITS2 regions have a high similarity with that Simplicillium (98%), which is closely related to lanosoniveum based on further phylogenetic analysis. However, produces unusual exocellular crystals its conidium size twice S. lanosoniveum. Hence, proposed be varietas named as var. Tianjinienss. Dong. (Type specimen was deposited at China General...
Determination of mutual inductance in the WPT system based on electromagnetic coupling mode is crucial for design and efficiency optimization.The analytic formulas experimental methods which only aim at a coil with certain type configuration parameters are not universal approaches.Therefore they can't serve as basis optimization.This paper presents novel method 3D field circuit analysis to calculate coils arbitrary spatial distribution system.The can obtain maximum under condition that...
This paper presents a novel open-loop gate control of the turn-ON transient for SiC MOSFETs in hard switching conditions. The could reduce voltage overshoot and di/dt dv/dt independently. Because high speed, bring serious electromagnetic interference (EMI) half-bridge topology. A conventional driver decreases EMI by increasing resistor, but clearly loss. To address this tradeoff optimize transition, drain current slope drain-source are controlled independently controlling gate-source profile...
SiC MOSFETs are expected to replace Si IGBTs in variable-speed motor drives applications for higher power density of inverters, e.g. electric vehicle(EV), because their high switching speed, junction temperature and blocking voltage. Common-mode voltage (CMV) which would bring common mode electromagnetic interference (EMI) damage bearings is an important performance index drive system. However, the impact speed frequency on common-mode still ambiguous. In this paper, theoretical analyses...
Optical Image Stabilization (OIS) has become popular in modern smartphones because it improves the imaging quality significantly by reducing image blur caused natural hand tremors. In this paper, we introduce novel OIS system - HyperOIS, which integrates controlling algorithm sensor hub of smartphone's platform, instead camera module's Micro Controller Unit (MCU) as firmware, thereby acquiring extra computational power for more advanced features, such gyro prediction and adaptive bias...
Abstract It is believed that eukaryotes arise from prokaryotes, which means organelles can form in the latter. Such events, however, had not been observed previously. Here, we report biogenesis of endosymbiotic cyanobacterium TDX16 escaped its senescent/necrotic host cell green alga Haematococcus pluvialis . In brief, organelle initiated with cytoplasm compartmentalization, followed by de-compartmentalization, DNA allocation, and re-compartmentalization, as such two composite organelles-the...
In order to solve the problem of rapid diagnosis fault in value-added service mode special transformer users, based on integration platform measurement automation, an on-line method for power supply equipment users is designed.Firstly, time series autoregressive model state parameters established, and quantized as input value system by using self-organizing neural network.Learning samples least squares support vector machines are established process sliding window.Then deviation between...