A5101515989- Advanced Measurement and Metrology Techniques
- Industrial Technology and Control Systems
- Manufacturing Process and Optimization
- Laser-Plasma Interactions and Diagnostics
- Tribology and Lubrication Engineering
- Optical measurement and interference techniques
- Advanced Measurement and Detection Methods
- Scientific Measurement and Uncertainty Evaluation
- Technology and Security Systems
- Iterative Learning Control Systems
- Laser-Matter Interactions and Applications
- Engineering Diagnostics and Reliability
- Plasma Diagnostics and Applications
- Optical Systems and Laser Technology
- Laser-induced spectroscopy and plasma
- Gyrotron and Vacuum Electronics Research
- Advanced Numerical Analysis Techniques
- Advancements in Photolithography Techniques
- E-commerce and Technology Innovations
- Particle accelerators and beam dynamics
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Random lasers and scattering media
- Quantum and electron transport phenomena
- Hydraulic and Pneumatic Systems
- Vehicle Routing Optimization Methods
Zhongyuan University of Technology
2006-2024
Institute of Applied Physics and Computational Mathematics
2006-2023
North China Electric Power University
2021
Wuhan Polytechnic University
2020
Shanghai Jiao Tong University
2018
Yanshan University
2016-2018
Guizhou University
2010
University of Science and Technology of China
2001
The ubiquitous power Internet of Things (UPIoT) is an intelligent service system with comprehensive state perception, efficient processing, and flexible application information. It focuses on each link the makes full use mobile internet, artificial intelligence, other advanced information communication technologies in order to realize inter-human interaction all things links system. This article systematically presents national international organizations agencies charge UPIoT layer...
The first laser–plasma interaction experiment using lasers of eight beams grouped into one octad has been conducted on the Shenguang Octopus facility. Although each beam intensity is below its individual threshold for stimulated Brillouin backscattering (SBS), collective behaviors are excited to enhance SBS. In particular, when two-color/cone with wavelength separation 0.3 nm used, backward SBS reflectivities show novel behavior in which longer achieve higher gain. This property can be...
An analytical fluid model for resonance absorption during the oblique incidence by femtosecond laser pulses on a small-scale-length density plasma [k0L∊(0.1,10)] is proposed. The physics of analyzed more clearly as we separate electric field into an electromagnetic part and electrostatic part. It found that characteristics physical quantities (fractional absorption, optimum angle, etc.) in are quite different from predictions classical theory. Absorption processes generally dependent scale...
A simple diagnostic tool for density measurements in plasma with a certain spatial resolution is proposed this paper. It uses the emission characteristics of monopole antenna to determine dielectic property ∊= 1 − fp2/f2, fp electron frequency related density. We immersed probe into and introduced microwave signal via network analyzer. When emitted power maximized, reflected minimized there occurs resonance. Since can be derived from resonant frequency, actually method measure absolute...
A 2D nonlinear beam-wave interaction is built to simulate the backward-wave oscillation(BWO) in a Helical traveling wave tube, based on 1D model by taking into account angular speed which affected magnetic field. The normalized oscillation start-up length with different space charge parameter compared that obtained from equivalent circuit small signal, showing they are close each other. Also, simulated results accordance measurements 8—18 GHz TWT. factors affecting BWO studied, some methods...
This paper presents a method to improve the alignment accuracy of mask in linear scale projection lithography, which adjacent pixel gray square variance is applied charge-coupled device (CCD) image obtain best position focal length motherboard and then realize plane. Two positions plane CCD are compared with traits overlap according splicing principle, four typical errors corrected on basis total grating errors. Simultaneously, rotation error used summarize grayscale variation function...
C2C economy has greatly changed people's way of shopping and promoted the development logistics enterprises. The optimization express delivery path can improve efficiency save labor cost transportation cost. Therefore, research planning method for is valuable. In this paper, TSP theory based task studied. According to constraints time, load, volume, an model multi-round trips scheme established. Finally, a Floyd algorithm genetic (GA) proposed solution Model. experimental result demonstrates...
This paper proposes an offline measurement method for a large aspheric mirror during its grinding stage. A and mathematical model to realize three-dimensional (3D) profile large-diameter mirrors are proposed, based on cylindrical coordinate system. The error induced by the alignment is examined analysis of workpiece systems. corresponding pose obtained through nonlinear least squares eliminated improve accuracy. To evaluate entire surface error, 3D established. total uncertainties proposed...
The reconstruction process of the Si(111) (3)1/2×(3)1/2 R30°-Ag surface is studied by using a scanning tunnelling microscope at 78 K. By applying strong interaction between tip and surface, tip-induced corresponding to mergence two domains observed. Based on inequivalent trimers (IET) model, this attributed transition clockwise counterclockwise IET domains. With transition, honeycomb-chained-trimer anti-phase boundary disappears changes structure.
Large-diameter aspheric mirrors made of hard and brittle materials suffer from low efficiency in the grinding stage, making them difficult to process. In this study, a nonuniform rational basis spline (NURBS) interpolation method is proposed developed based on wheel path planning. The characteristic parameters NURBS machining program are calculated ensure accuracy curve planning, series control points selected according normal vector path. were determined by distance between tangent next...