Weiqi Li

ORCID: 0000-0003-0038-3577
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About
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Research Areas
  • Optical Polarization and Ellipsometry
  • Optimization and Search Problems
  • Adsorption and biosorption for pollutant removal
  • Advanced Algorithms and Applications
  • Nanomaterials for catalytic reactions
  • Turbomachinery Performance and Optimization
  • Fault Detection and Control Systems
  • High-Voltage Power Transmission Systems
  • Inertial Sensor and Navigation
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Optical measurement and interference techniques
  • Heat Transfer Mechanisms
  • Calibration and Measurement Techniques
  • Surface Roughness and Optical Measurements
  • Advanced Radiotherapy Techniques
  • Radiation Therapy and Dosimetry
  • Robotic Path Planning Algorithms
  • Semiconductor Quantum Structures and Devices
  • Semiconductor materials and devices
  • High voltage insulation and dielectric phenomena
  • Tribology and Lubrication Engineering
  • Stability and Control of Uncertain Systems
  • Advanced Scientific Research Methods
  • Distributed Control Multi-Agent Systems
  • Remote Sensing in Agriculture

Xi'an Jiaotong University
2018-2024

Northwest University
2024

University of Michigan–Flint
2023

Northwestern Polytechnical University
2021

University of Birmingham
2016

Huazhong University of Science and Technology
2013-2014

Moffitt Cancer Center
2011

Frequently, three-dimensional (3D) conformal beams are used in lung cancer stereotactic body radiotherapy (SBRT). Recently, volumetric modulated arc therapy (VMAT) was introduced as a new treatment modality. VMAT techniques shorten delivery time, reducing the possibility of intrafraction target motion. However dose distributions can be quite different from standard 3D therapy. This study quantifies those differences, with focus on plans using unflattened photon beams.A total 15 patients...

10.1186/1748-717x-6-152 article EN cc-by Radiation Oncology 2011-11-09

Considering the conventional federated filtering-based fault-tolerant integrated navigation system is difficult to be implemented by serial data processing circuits, this paper presents switching strategy-based SINS/GPS/ADS/DVL guarantee reliability of under sensor faults. When failure appears, SINS and fault-free sensors are selected successively form an system, such that reliable parameters can obtained. The simulation tests verify provide when ADS DVL disabled.

10.1155/2021/9943370 article EN cc-by Journal of Sensors 2021-01-01

We propose a method to calibrate the depolarization parameters of imperfect compensators in dual-rotating compensator Mueller matrix polarimeters, and deduce set correction equations for calculation.

10.1364/cosi.2014.cw3c.3 article EN Classical Optics 2014 2014-01-01

We have demonstrated that the 0.4 /spl mu/m gatelength 6 inch PHEMT device has well behaved I-V characteristics. MTTF of is 2x10/sup 6/ hours at 1000 C channel temperature. The activation energy calculated to be E/sub A/=1.15 eV. failure mechanism found recovery surface damage induced by gate SiN plasma etch process.

10.1109/gaasrw.2000.902419 article EN 2002-11-11

This paper studies the cooperative control of multi-UAV formation. Based on traditional PID algorithm, a flight method based accelerating neural network is proposed. Firstly, aiming at low efficiency controller proposed to improve accuracy and stability algorithm. In order solve problem slow convergence speed network, momentum term gradient factor are introduced which significantly UAV formation dynamic response. The simulation results show that algorithm can original also has certain robustness.

10.1109/cac53003.2021.9728319 article EN 2021 China Automation Congress (CAC) 2021-10-22

Obvious depolarization effect of bandwidth is observed in Mueller matrix imaging polarimetry (MMIP) with a dual-rotating compensator configuration. A method proposed to correct the and improve measurement accuracy.

10.1364/cosi.2014.cw4c.5 article EN Classical Optics 2014 2014-01-01

In the process of drying, uneven drying rate will lead to decline grain quality, including increase crackle ratio, destruction edible quality. this paper, based on PAGE model numerical simulation method suitable for circulated rice constant was developed and built. The software by MATLAB graphical interface language. Based setting parameters initial moisture, rate, hot air temperature, ambient temperature humidity, experiment could be conducted, curves drawn. circulation results served as...

10.1109/icris.2016.75 article EN 2016-08-01

The random noise and the systematic errors caused by azimuthal of optical elements, i.e., polarizer, analyzer, or compensator, would lead to measurement in Mueller matrix ellipsometer (MME). In this paper, we develop two-channel MME configuration PC<sub>r1</sub>SC<sub>r2</sub>Wp replacing analyzer with a Wollaston prism. MME, two intensity spectra be acquired simultaneously due separation orthogonal polarization light beams prism are combined deduce matrix. Two figures merit derived evaluate...

10.1117/12.2014581 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2013-01-31

In order to study the E-field distribution and design a practical shielding device for ±1100 kV post insulator, follow computer simulation was made. First, whole indoor DC yard model established intensity of insulator under different fittings obtained through FEM sub-model technique. The maximum strength flat-bottom fitting lowest, only 584V/mm, 15.0% lower than spherical type, 22.6% mushroom-head type 32.1% double-ring type. Next, concave-bottom proposed further reduce satisfy installation....

10.1109/ichve.2018.8642052 article EN 2018-09-01
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