A5101914814- Stellar, planetary, and galactic studies
- Semiconductor Quantum Structures and Devices
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Advanced Semiconductor Detectors and Materials
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Nanowire Synthesis and Applications
- Astrophysics and Star Formation Studies
- Inorganic Chemistry and Materials
- Dysphagia Assessment and Management
- Voice and Speech Disorders
- Tracheal and airway disorders
- Adaptive optics and wavefront sensing
- Gear and Bearing Dynamics Analysis
- Aerospace Engineering and Control Systems
- Spectroscopy and Laser Applications
- Mechanical Engineering and Vibrations Research
- Quantum Dots Synthesis And Properties
- Atmospheric Ozone and Climate
- Rare-earth and actinide compounds
- Tribology and Lubrication Engineering
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2018-2025
Institute of Engineering Thermophysics
2024-2025
Space Engineering University
2024
National Astronomical Observatories
2023
Beijing Tongren Hospital
2023
Capital Medical University
2023
Shanghai Institute of Microsystem and Information Technology
2016-2018
Elastic rings are extensively utilized in aero-engine rotor systems owing to their compact size and ease of assembly, where they play a critical role vibration suppression during engine operation. The dynamic behavior elastic is governed by structural parameters, with stiffness being pivotal factor influencing the system’s performance. This study employs finite element methods investigate effects ring particularly geometric features bosses internal/external assembly clearances, on...
Abstract Ultrahot Jupiters (UHJs) possess the most extreme environments among various types of exoplanets, making them ideal laboratories to study chemical composition and kinetics properties exoplanet atmosphere with high-resolution spectroscopy. It has advantage resolving tiny Doppler shift weak signal from helped detect dozens heavy elements in UHJs including KELT-9b, WASP-76b, WASP-121b. MASCARA-4b is a 2.8 days UHJ an equilibrium temperature ∼2250 K, which expected contain detectable...
Hot Jupiters, particularly those with temperature higher than 2000 K are the best sample of planets that allow in-depth characterization their atmospheres. We present here a thermal emission study ultra hot Jupiter WASP-103 b observed in two secondary eclipses CFHT/WIRCam J and Ks bands. By means high precision differential photometry, we determine eclipse depths to an accuracy 220 270 ppm, which combined published HST/WFC3 Spitzer data retrieve joint constraints on properties dayside...
An InP-based 2.1 μm InAs/In0.53Ga0.47As triangular quantum well laser grown with Bi surfactant has shown improved performance in comparison to the device same structure but without surfactant. Under continuous-wave driving operation, output light power is increased from 32.6 37.5 mW at injecting current of 850 mA 200 K. The external differential and internal efficiencies for are 18.4% 41%, respectively, which correspondingly higher than 13.1% 31% reference device. Furthermore, a decreased...
To develop bismuth-containing infrared optoelectronic devices, InGaAsBi/InP films with different lattice mismatches have been investigated. The mismatch was tailored by changing the Bi content in conjunction In simultaneously. X-ray diffraction analysis revealed that alloy constants extended positively incorporation of into crystal lattice. Electrical and optical characteristics were investigated Hall-effect, absorption photoluminescence measurements. A bandgap shrinking about 56.4 meV/Bi%...
This work reports on InP-based metamorphic quantum well structures with bismuth incorporation for mid-infrared applications. InAs1-xBix have been grown In0.83Al0.17As buffers and photoluminescence beyond 3.1 μm has achieved at 300 K, which is longer than the referenced InAs well. X-ray diffraction, cross-sectional transmission electron microscopy, energy dispersive spectroscopy measurements reveal clear interfaces of InAsBi low bismuth, while more defects inhomogeneity were observed as was...
Atmospheric studies are essential for elucidating the formation history, evolutionary processes, and atmospheric dynamics of exoplanets. High-resolution transmission spectroscopy offers advantage detecting subtle variations in stellar spectral profiles, thereby enabling identification sources observed signals. In this study, we present spectra exoplanet WASP-77Ab, a hot Jupiter with 1.36-day orbital period around G8 host star $V=11.29$ mag. These observations were conducted using...
Abstract Atmospheric studies are essential for elucidating the formation history, evolutionary processes, and atmospheric dynamics of exoplanets. High-resolution transmission spectroscopy offers advantage detecting subtle variations in stellar spectral profiles, thereby enabling identification sources observed signals. In this study, we present spectra exoplanet WASP-77A b, a hot Jupiter with 1.36-day orbital period around G8 host star V = 11.29 mag. These observations were conducted using...
An InP-based metamorphic InAs quantum well laser has been demonstrated on an In0.8Al0.2As template with electrically pumped lasing up to 3 μm at room temperature. The dual-layer upper cladding structure, consisting of first and Al0.35Ga0.65As second layers, is applied enhance the electronic optical confinements. Despite lattice-mismatched approach, X-ray diffraction photoluminescence measurements show a moderate material quality active region. By using 15-nm-thick type-I wells, wavelength...
Hot Jupiters, particularly those with temperature higher than 2000 K are the best sample of planets that allow in-depth characterization their atmospheres. We present here a thermal emission study ultra hot Jupiter WASP-103 b observed in two secondary eclipses CFHT/WIRCam J and Ks bands. By means high precision differential photometry, we determine eclipse depths to an accuracy 220 270 ppm, which combined published HST/WFC3 Spitzer data retrieve joint constraints on properties dayside...
Ultra-hot Jupiters (UHJs) possess the most extreme environments among various types of exoplanets, making them ideal laboratories to study chemical composition and kinetics properties exoplanet atmosphere with high-resolution spectroscopy (HRS). It has advantage resolving tiny Doppler shift weak signal from helped detect dozens heavy elements in UHJs including KELT-9b, WASP-76b, WASP-121b. MASCARA-4b is a 2.8-day UHJ an equilibrium temperature $\sim2250$ K, which expected contain detectable...
本文报道1例发音纽安装术后无法重新发音，应用食道测压定位联合超声引导下肉毒素注射治疗后发音改善的病例。患者男，65岁，因“全喉切除术后Ⅱ期发音纽安装术后1年余，无法发声”就诊。考虑为发音时咽食管括约肌痉挛所致。采用食道测压定位，测得传感器距前鼻孔20 cm处，发音时存在一高压区压力均值为（73.6±10.7）mmHg（1 mmHg=0.133 kPa），此处即为痉挛部位，于该部位注射1%利多卡因5 ml后，患者可间断发音“a”，发音时压力显著下降。于同一部位，超声引下多点注射10 U/ml肉毒素A 50 U。术后3 d患者可连续发音10 s以上，复测发音时压力较术前显著下降。术后2周，患者可正常交流。术后半年，患者仍可正常交流。.
Transit spectroscopy is the most frequently used technique to reveal atmospheric properties of exoplanets, while that at high resolution has advantage resolve small Doppler shift spectral lines, and trace signal exoplanet atmosphere can be separately extracted. We obtain transmission spectra extrasolar planet WASP-85Ab, a hot Jupiter in 2.655-day orbit around G5, V=11.2 mag host star, observed by high-resolution spectrograph ESPRESSO Very Large Telescope array for three transits. present an...
Transit spectroscopy is the most frequently used technique to reveal atmospheric properties of exoplanets. At high resolution, it has added advantage resolving small Doppler shift spectral lines and, thus, trace signal exoplanet atmosphere can be extracted separately. We obtained transmission spectra extrasolar planet WASP-85Ab, a hot Jupiter in 2.655-day orbit around G5, V = 11.2 mag host star, observed by high-resolution spectrograph ESPRESSO at Very Large Telescope array for three...