A5101813119- Ion-surface interactions and analysis
- X-ray Spectroscopy and Fluorescence Analysis
- Electron and X-Ray Spectroscopy Techniques
- Atomic and Molecular Physics
- Integrated Circuits and Semiconductor Failure Analysis
- Combustion and Detonation Processes
- Fire dynamics and safety research
- Gas Sensing Nanomaterials and Sensors
- Laser-induced spectroscopy and plasma
- Mass Spectrometry Techniques and Applications
- Diamond and Carbon-based Materials Research
- Advancements in Photolithography Techniques
- Astrophysics and Cosmic Phenomena
- Advanced Photocatalysis Techniques
- Advanced Chemical Sensor Technologies
- Advanced SAR Imaging Techniques
- Wind and Air Flow Studies
- Advanced Fluorescence Microscopy Techniques
- Analytical Chemistry and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Particle Detector Development and Performance
- Radiation Effects in Electronics
- Nanopore and Nanochannel Transport Studies
- Radar Systems and Signal Processing
- Combustion and flame dynamics
Southwest Petroleum University
2020-2025
Chinese Academy of Sciences
2007-2025
Institute of High Energy Physics
2025
Institute of Modern Physics
2006-2024
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2023
Sichuan Fire Research Institute
2022
Helmholtz-Zentrum Berlin für Materialien und Energie
1995-2015
University of Chinese Academy of Sciences
2013
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute
1994-1998
Process Instruments (United States)
1994
Pure In2O3 nanofibers (NFs) were first prepared by electrospinning, and then Pd–In2O3 NFs obtained Pd modification further used for room temperature hydrogen (H2) sensing. The chemical composition, morphology, structure of the samples systematically investigated. sensing performance sensors was tested under different H2 concentrations at temperature. Pd@In2O3 NF sensor with a loading 1.5 wt% reflected excellent selectivity, high response (Ra/Rg = 293.6), short time (12 s), recovery (23 s)...
With extensive use of natural gas energy, various accidents occur frequently. Reasonable odorization is an effective way to detect leakage in time and avoid explosions. Therefore, it necessary realize the identification concentration detection odorants ensure early warning without degrading quality. Given cross-interference effect electrochemical sensors poor accuracy conventional analysis methods, this paper proposed a method based on principal component K-nearest neighbor algorithm...
A new type of real-time confocal scanning optical microscope, with the same measured resolution as a conventional is described. The system uses rotating Nipkow disk 150,000 pinholes etched in it, to yield 640 frame/sec, 7000-line image. transverse definition order 0.3 μm, and 3 dB range resolution, 0.8 N.A. objective lens, better than 0.75 μm.
The energy deposition and the atomic processes, such as electron-capture, ionization, excitation radiative-decays for slow heavy ions in plasma remains an unsolved fundamental problem. Here we investigate, both experimentally theoretically, stopping of 100 keV=u helium a well-defined hydrogen plasma. Our precise measurements show much higher loss than predictions semi-classical approaches with commonly used effective charge. By solving Time Dependent Rate Equation (TDRE) all main projectile...
Pedestrian trajectory perception is always a challenging task for autonomous urban driving since the weak echoes from pedestrians may be masked by strong background clutters, example, road infrastructures and other vehicles. As consequence, this article presents frequency-modulated continuous wave-multiple input multiple output (FMCW-MIMO) radar-based tracking method to realize pedestrian detection under low-observable environments. More specifically, keystone transform-constant false alarm...
We present experimental evidence for a deceleration of convoy electrons produced by 5 MeV/u ions ( ${\mathrm{N}}^{7+}$, ${\mathrm{Ne}}^{10+}$, ${\mathrm{S}}^{13+}$, ${\mathrm{Ni}}^{23+}$, and ${\mathrm{Ag}}^{37+}$) during the interaction with insulator foils at normal incidence. The first increases increasing projectile charge, reaches maximum charge about 16, seems to approach zero even higher charges. Different possible mechanisms quantitative estimates slowing down are presented.
In this article, the micro-Doppler feature analysis and extraction of small unmanned rotorcraft (SUR) is considered. To be specific, radar returns from rotor blades are first modeled as sinusoidal frequency-modulated (SFM) signals. Then, Gabor transform utilized to obtain time-frequency distribution (TFD). order solve problem limited TF resolutions, high carrier frequency employed for sake separating different curves TFD. After that, Hough-Radon (HRT) introduced detect Finally, based on...
Abstract A new one‐sided tandem scanning microscope (OTSM) has been utilized to optically section a transparent cornea and ocular lens with submicron depth transverse resolution. Its high resolution, image quality, contrast, together color capability, real‐time operation, easy alignment, have advantages over previous confocal systems. Planes within the nuclei of surface epithelial cells, basement membrane, nerve fibers, interior endothelial structure fibers are readily observed. The utility...
The target KVV Auger-electron emission has been investigated experimentally and theoretically for heavy-ion irradiation of amorphous carbon at an ion velocity 14.1 atomic units (5 MeV/u). We present experimental evidence influence the excitation density on shape spectra O7+, Kr17+ Kr30+ ions. An analysis Auger structures allows first time to extract electron temperatures center nuclear tracks comparison is made with results two thermal-spike models.
The plasma screening effects of dense quantum plasmas on H+ + H charge exchange and ionization cross sections are calculated by the classical trajectory Monte Carlo method. For sections, it is found that reduce slightly in weak conditions. However, reduced substantially strong with increase effects, for low energies more rapidly than those high energies. When enough, decrease incident energy. In addition, have been compared weakly coupled plasmas. It conditions, two approximately same, while stronger
Al K-shell x-ray production cross sections induced by 50–250 keV protons and 1–3 MeV Ar11+ ions were measured. It was found that 3–4 L-shell electrons of the atom multiply ionized ion impact. The deduced from experimental yield data compared with binary encounter approximation (BEA), plane wave Born energy-loss Coulomb-repulsion perturbed-stationary-state relativistic (ECPSSR) theoretical predictions. For proton impact, ECPSSR theory gave an accurate prediction result. However, taking into...