A5071930359- Microwave Engineering and Waveguides
- Particle accelerators and beam dynamics
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Obstructive Sleep Apnea Research
- Evaluation and Performance Assessment
- Metamaterials and Metasurfaces Applications
- Pulsars and Gravitational Waves Research
- Spacecraft and Cryogenic Technologies
- Insects and Parasite Interactions
- Earthquake Detection and Analysis
- Superconducting and THz Device Technology
- Dysphagia Assessment and Management
- Radio Wave Propagation Studies
- Millimeter-Wave Propagation and Modeling
- Astrophysics and Cosmic Phenomena
- Electromagnetic Launch and Propulsion Technology
- Electric Motor Design and Analysis
- Neuroscience of respiration and sleep
Yunnan University
2024-2025
Huazhong University of Science and Technology
2023-2024
Zhejiang Normal University
2024
Wuhan National Laboratory for Optoelectronics
2024
Beijing Jiaotong University
2023
Abstract Primates, 69% of which are threatened with extinction, the third most specious order mammals. We used primates as model taxa to examine umbrella effects on ecosystem services and protection other vertebrates seed plants in Yunnan Province, China. identified areas conservation priority for 16 primate species determined endemic terrestrial would be protected through a program targeting conservation. Areas high richness were spatially correlated distribution 601 4010 plants. Primate...
The misalignment is an important factor that accounts for the deviation of experimental results from theoretical design high-frequency gyrotrons. This article investigates effect electron beam on operation a second harmonic 0.8 THz gyrotron through analysis and experiments. rise starting current, efficiency degradation, continuous frequency tunability, mode competition under different types analyzed comprehensively using self-consistent model, providing general picture potential alignment...
This study proposes a dual-functional terahertz device based on the Dirac semimetal, serving as both sensing element and band-pass filter. The device's operating mode can switch between these two functions by utilizing phase transition property of vanadium dioxide (VO
A wideband filtering power divider (WFPD) with improved out-of-band suppression is proposed in this letter. The WFPD integrates open-circuit stub loaded multimode resonators (OSLMRs) and stepped impedance (SIRs) to achieve good in-band performance, introduces six transmission zeros (TZs) improve suppression. 3GHz was designed, fabricated measured. measured results shows that the level of designed greater than 22.5dB on left side passband 40dB right side.
To investigate the diagnostic value of fluorine-18-9-fluoropropyl-(+)-dihydrotetrabenazine (
This paper presents a novel dual-band Gysel filtering power divider (FPD) with an excellent isolation performance and significantly wide bandwidth. Although dividers have been extensively studied in the field of radio frequency (RF), integration functionality expansion bandwidth remain challenging. The proposed design addresses these challenges by incorporating transform resonators (FTRs) microstrip/slotline (M/S) phase inverter into classic topology. FTR is directly connected to output port...
We present the results of a detailed timing and spectral analysis quasi-regular modulation (QRM) phenomenon in black hole X-ray binary 4U 1630--47 during its 1998 outburst observed by Rossi Timing Explore (RXTE). find that $\sim$ 50-110 mHz QRM is flux dependent, detected with simultaneous low frequency quasi-periodic oscillations (LFQPOs). According to behavior power density spectrum, we divide observations into four groups. In first group, namely A, LFQPOs are detected, but no QRM. The...
Pulsed high-field magnets are important tools for modern scientific research. Given the current state of material development, stress-optimized design is a primary approach to achieving high magnetic fields. Nevertheless, analysis and optimization structural mechanics pulsed highly complex, involving various factors such as multi-physics coupling, elastic–plastic analysis, conductor-fiber laminate structures. Traditional manual methods inefficient unable achieve global optimal solution....
The risk of damage in high-field pulse magnets is very high, with numerous and intricate factors contributing to potential failures. buckling separating layers due the axial Lorentz force a critical instability factor pulsed magnets, yet it has received limited attention previous studies. After discussing mechanism, this paper utilizes Donnell theory dynamic finite element analysis (FEA) model thoroughly investigate phenomenon magnets. This in-depth takes into consideration complex composite...