A5076719166- Optical Network Technologies
- Advanced Optical Network Technologies
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Gear and Bearing Dynamics Analysis
- Advanced Measurement and Metrology Techniques
- Photonic Crystals and Applications
- Advanced machining processes and optimization
- Advanced Fiber Laser Technologies
- Interconnection Networks and Systems
- 3D Surveying and Cultural Heritage
- Photonic Crystal and Fiber Optics
- Metallurgy and Material Forming
- Network Traffic and Congestion Control
- Optical measurement and interference techniques
- Optical Coatings and Gratings
- Tribology and Lubrication Engineering
- Engineering Technology and Methodologies
- Remote Sensing and LiDAR Applications
- 3D Shape Modeling and Analysis
- Software-Defined Networks and 5G
- Advanced Computational Techniques and Applications
- Glass properties and applications
Chongqing University of Technology
2012-2023
Geological Exploration Institute of Shandong Zhengyuan
2021
Shandong Provincial Water Resources Research Institute
2021
Xi'an Jiaotong University
2019-2020
Tianjin University
2015
Zhejiang Environmental Monitoring Center
2009
Beijing Information Science & Technology University
2009
University of Science and Technology Beijing
2009
Southeast University
1998-2007
Southeast University
2005-2006
As a prospective machining method for cylindrical gear, gear skiving has been promoted by many commercial companies, such as Gleason, Mitsubishi, and Prawema recently. Although the principle mathematical model discussed works, tooth modification was left behind in literature. In fact, machine kinematics correction contact analysis (TCA) are widely used processing, hobbing, grinding, milling. Focusing on this, paper generalizes TCA to skiving. The influence of parameters deviation, path,...
We investigate the effect of group velocity dispersion on stimulated Raman crosstalk in intensity modulated multichannel transmission systems. A theoretical model for bit-error rates (BERs) and power penalty calculation is provided, where effects modulation statistics are taken into account. It has been found that walkoff may reduce scattering (SRS) crosstalk, can not be neglected systems with a large number channels.
Due to the fault vibration signal of rolling bearing is greatly interfered by background noise, features are easily submerged and result in a low diagnosis accuracy. A novel method proposed based on improved VMD-adaptive wavelet threshold combined with noise reduction this paper. Firstly, modal components obtained VMD decomposition; Secondly, dual determination criteria sample entropy correlation coefficient constructed filter components; Subsequently, an adaptive thresholding function...
The mapped Galerkin method based on the transverse electric fields (E formulation) for vectorial analysis of optical waveguides is described. vector wave equation solved by using nonlinear mapping x-y plane and subsequent Fourier decomposition. modal propagation constants field distributions rectangular rib are presented. calculated results accord well with those published earlier, which proves accuracy validity method.
Using the multiple-carrier model, process of thermal/electric-field poling in fused silica is analyzed this study for first time. The depletion region may be composed a positively charged layer, an ionosphere layer and negative charge density distribution derived obtained. calculation results show that entire has quasi-step profile, both have approximately uniform distribution. Expressions width electric field are Theoretical peak located interior region, internal about 10 9 V/m, up to two...
A novel low-cost 1i+7 plastic optical fiber coupler using cylindrical mixing-rod is proposed. Comparing with conventional tapered coupler, the proposed which uses POF as instead of in order to save high demanding tapering process, much lower at cost and only a little deteriorate crosstalk. The increased crosstalk its power penalty are theoretically calculated showing that than 20dB results insignificant penalty. was experimentally tested an excess loss less 2.5dB uniformity 3.56dB.
Gear shaping, a widely used machining method for circular gears, was generalized to noncircular gears in recent works using 3-linkage machine tool. As the pitch curve normals of change constantly processing, angles may exist between and cutter relieving direction, bringing turn retracting interference. Regarding this, paper proposes 4-linkage shaping method. Through linkage motion 4 tool axes, gear are along avoiding completely On such basis, mathematical model is first established, cutting...