A5100338218- Combustion and flame dynamics
- Remote Sensing and LiDAR Applications
- Fire dynamics and safety research
- Network Traffic and Congestion Control
- Laser Material Processing Techniques
- Fluid Dynamics Simulations and Interactions
- Surface Roughness and Optical Measurements
- Fluid Dynamics and Heat Transfer
- Advanced Optical Sensing Technologies
- Engineering Applied Research
- Optical Systems and Laser Technology
- Plant Surface Properties and Treatments
- Innovative Educational Techniques
- Aeroelasticity and Vibration Control
- Digital Media and Visual Art
- Infrastructure Maintenance and Monitoring
- Image and Video Quality Assessment
- Microwave Engineering and Waveguides
- Advanced Power Amplifier Design
- Redox biology and oxidative stress
- Advanced Combustion Engine Technologies
- Hydraulic Fracturing and Reservoir Analysis
- Advanced Wireless Network Optimization
- Radiative Heat Transfer Studies
- Urban and spatial planning
Nanjing University of Science and Technology
2003-2024
Xi'an Jiaotong University
2022
Fudan University
2014
Huazhong University of Science and Technology
2007
Shanghai Jiao Tong University
2002
Nankai University
2001
Ranging accuracy is an important index to evaluate the performance of a LiDAR, which determines LiDAR's resolving ability. In order cover wider detection range, there are directional differences between channels vehicle-borne LiDAR usually, will cause lasers in different act on target at incident angles, have impact ranging each channel. Based working principle we establish echo signal model channel, and deduce Probability Density Function (PDF) After that, use Monte Carlo method simulate...
The laser scattering characteristic of pavement is one the important factors that affect detection performance optical sensors such as lidars. Because wavelength does not match roughness asphalt pavement, common analytical approximation model electromagnetic applicable in this case, so it difficult to calculate distribution accurately and effectively. According self-similarity profile, a fractal two-scale method (FTSM) based on structure proposed paper. We used Monte Carlo obtain...
Unraveling quality of experience (QoE) video streaming is very challenging in bandwidth shared wireless networks. It unclear how QoE metrics such as buffering time and starvation behavior interact with dynamics traffic load. In this paper, we collect view records from one the largest providers China over two weeks perform an in-depth measurement study on flow arrival viewing that shed light realistic pattern. Our most important observation users fits a hyper-exponential distribution quite...
Small-scale flickering buoyant diffusion flames in externally swirling flows were computationally investigated with a particular interest identifying and characterizing various distinct dynamical behaviors of the flame oscillators under different flow conditions. By varying external swirl, six modes, such as flame, oscillating steady lifted spiral vortex bubble, identified both physical phase spaces analyzed from perspective dynamics. Specifically, frequency buoyancy-induced flicker...
Triple flickering buoyant diffusion flames in an isosceles triangle arrangement were experimentally studied as a nonlinear dynamical system of coupled oscillators. The objective the study is two-fold: to establish well-controlled gas-fuel flame experiment that can remedy deficiencies previous candle-flame experiments, and develop methodology for mode recognition based on Wasserstein distance between distribution functions phase points be readily generalized larger consisting more than three...
Based on the theoretical model of uniform pulsed laser beam irradiating optical material, stress distribution transparent material when with different spatial - circle spot and dark-cross irradiated to inner was discussed. The experiment that 532nm Q-switched pulse focused silicate glass taken, which output spot. According theory, experimental results phenomena were analyzed damage micro-configurations explained. theory could be accordant well.
Inclination is one of the important parameters a target’s surface, which closely related to waveform light detection and ranging. When target tilted, laser spot on surface changes greatly, influence echo signal more complex. Here, formation process laser’s explored. On that basis, distribution model in case large incident angle optimised, comparison made with conventional method. A simulation system can produce display affected by inclined designed. In view difficulty extracting target's...
The experiment is carried out with ns Q-switch 532nm laser focusing into the transparent material to research damage characteristics. theory models about modulated pulse series are built up. Some main parameters such as interval of sub-pulse, single energy, peak power, and duration studies in process bulk material. useful conclusions acquired.
The rapid growth of interconnection techniques in recent years makes the appearance large-scale business system possible. Interconnecting a series subsystems can not only span scope and scale but also save cost. In this paper, we first describe case for then give model such systems.
As a typical hazardous waste in petrochemical industry, the spent catalysts contain large amount of oil, if cannot be efficiently recycled will lead to resources and seriously pollute environment. In this study, four kinds inlet particle pre-self-rotation cyclones were designed for efficient separation recovery oil trapped pores porous catalyst through high-speed self-rotation cyclones. The effects on revolution studied using motion analyzer (HSMA). When flow rate was 40 m 3 /h, speeds at...
This paper considers distributed optimization for minimizing the average of local nonconvex cost functions, by using information exchange over undirected communication networks. To reduce required capacity, we introduce an encoder--decoder scheme. By integrating them with gradient tracking and proportional integral algorithms, respectively, then propose two quantized algorithms. Assuming global function satisfies Polyak--{\L}ojasiewicz condition, which does not require to be convex minimizer...
Flickering buoyant diffusion methane flames in weakly rotatory flows were computationally and theoretically investigated. The prominent computational finding is that the flicker frequency nonlinearly increases with rotational intensity number R (up to 0.24), which measures relative importance of speed compared jet speed. This consistent previous experimental observations flame enhanced by within a certain extent. Based on vortex-dynamical understanding flickering caused periodic shedding...
A numerical model of spray cooling for enhanced surfaces in the non-boiling regime is created. The effects surface structure on heat transfer are numerically investigated. reliability verified by comparing simulated results with corresponding experimental data, and relative deviation within 12%, showing reasonably good agreement data. flux temperature non-uniformity (STNU) used to evaluate transfer. Using smooth as a baseline, area expanded, significantly improved. Compared straight groove...