A5013715274- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Advanced DC-DC Converters
- High-Voltage Power Transmission Systems
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- HVDC Systems and Fault Protection
- Multilevel Inverters and Converters
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Microgrid Control and Optimization
- Power Systems Fault Detection
Southeast University
2023-2024
China Center of Advanced Science and Technology
2006
Based on 58 million J/ψ events collected by the BES II detector at BEPC, → Λ π+π− is observed for first time. The branching fraction measured to be Br(J/ψ π+π−) = (4.30±0.13±0.99)×10−3, excluding decays intermediate states, namely Ξ−+, Σ(1385)−(1385)+, and Σ(1385)+(1385)−. fractions these resonance channels are be: Ξ−+) (0.90±0.03±0.18)×10−3, Σ(1385)−(1385)+) (1.23±0.07±0.30)×10−3, Σ(1385)+(1385)−) (1.50±0.08±0.38)×10−3, respectively. angular distribution of form ∝ (1 + αcos2θ) with α...
Radiative decays of the ψ(2S) into γKK¯π and γηπ+π− final states are studied using 14×106 events collected with BESII detector. Branching fractions or upper limits on branching χcJ reported. No significant signal for η(1405)/η(1475) is observed in KK¯π ηπ+π− mass spectra, ψ(2S)→γη(1405)/η(1475), η(1405)/η(1475)→KK¯π, determined.5 MoreReceived 16 July 2006DOI:https://doi.org/10.1103/PhysRevD.74.072001©2006 American Physical Society
Abstract This paper proposes a state observation control method for bidirectional CLLLC resonant converter to solve the problem of output voltage stability an isolated DC–DC in building DC power distribution systems. Combining time domain and frequency analysis, this presents modelling process from equivalent circuit harmonic approximation extended description function rewriting. Then design is given, that is, linearization analysis carried out according results function, equation obtained,...
This paper proposes an active fault detection method based on harmonic injection. First, the single-pole ground equivalent circuit of low-voltage DC distribution network is established, characteristics are theoretically derived, and voltage current dynamic characteristic equations after determined. Based this characteristic, a signal global injection for identification proposed to extract signals fault, use impedance locate fault. article not only gives process, but also describes in detail...