Changping Li

ORCID: 0000-0002-8651-5122
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About
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Research Areas
  • Advanced Surface Polishing Techniques
  • Advanced Machining and Optimization Techniques
  • Advanced machining processes and optimization
  • Mineral Processing and Grinding
  • Drilling and Well Engineering
  • Higher Education and Teaching Methods
  • Tunneling and Rock Mechanics
  • Optical Wireless Communication Technologies
  • Education and Work Dynamics
  • Geophysical Methods and Applications
  • Metal Extraction and Bioleaching
  • Advanced Wireless Communication Techniques
  • Hydraulic Fracturing and Reservoir Analysis
  • Wireless Communication Networks Research
  • Advanced Photonic Communication Systems
  • Non-Destructive Testing Techniques
  • Mechanical Engineering and Vibrations Research
  • Geomechanics and Mining Engineering
  • PAPR reduction in OFDM
  • Geotechnical and Geomechanical Engineering
  • Online and Blended Learning
  • Industrial Technology and Control Systems
  • Engineering Applied Research
  • Chaos-based Image/Signal Encryption
  • Oil and Gas Production Techniques

China University of Geosciences
2011-2025

Liaoning Normal University
2024

Hunan University of Science and Technology
2019-2023

Wuhan University
2023

Ministry of Education of the People's Republic of China
2023

Yangtze University
2022-2023

Hubei Zhongshan Hospital
2023

Southwest University
2021-2022

Wuhan University of Technology
2010-2022

Liaoning Shihua University
2020

We experimentally demonstrate a record high-speed underwater wireless optical communication (UWOC) over 7 m distance using on-off keying non-return-to-zero (OOK-NRZ) modulation scheme. The link uses commercial TO-9 packaged pigtailed 520 nm laser diode (LD) with 1.2 GHz bandwidth as the transmitter and an avalanche photodiode (APD) module receiver. At 2.3 Gbit/s transmission, measured bit error rate of received data is 2.23×10(-4), well below forward correction (FEC) threshold 2×10(-3)...

10.1364/oe.23.020743 article EN cc-by Optics Express 2015-07-30

High-voltage electro pulse boring (EPB) has the advantages of high rock-breaking efficiency and good wall quality, is a new efficient potential method rock breaking. The EPB process defined as random because it affected by many factors. At present, there no suitable physical mathematical model to describe results breakage in EPB, conclusions reached regarding rock-breakage mechanisms are not uniform. In this study, complete damage voltage granite established, which includes shock wave...

10.3390/en12040727 article EN cc-by Energies 2019-02-22

High-voltage electric pulse rock-breaking has shown great potential for application in breaking hard rock. However, there been a lack of research on the design hydraulic structure electrode bit and characteristics wellbore flow field cuttings transport. In this paper, was designed, transport model established based computational fluid dynamics–discrete element method. The effects drilling parameters were studied. results showed that could be divided into jet impact zone, overflow dead vortex...

10.1063/5.0249363 article EN Physics of Fluids 2025-01-01

As the exploration and drilling of oil, natural gas geothermal wells are expanding continuously, research into high-efficiency rock technology is imperative. High-voltage electro pulse boring (EPB) has advantages high breaking efficiency good wall quality, a new efficient potential method breaking. The design electrode drill bits selection process parameters main obstacles restricting commercialization EPB. Accordingly, it necessary to determine influences on high-voltage In this study,...

10.3390/en11092461 article EN cc-by Energies 2018-09-17

Electropulse rock breaking has wide application prospects in hard drilling and ore breaking. At present, there are no suitable physical mathematical models that describe electropulse boring (EPB) processes under confining pressures. In this paper, a high‐voltage breakdown damage model is established for granite, which includes three submodels. It considers electric field distortions inside the rock, an distribution coefficient introduced electro‐breakdown model. A shock‐wave also constructed...

10.1155/2019/7149680 article EN cc-by Shock and Vibration 2019-01-01

Suaeda glauca Bunge produces dimorphic seeds on the same plant, with brown displaying non-dormant characteristics and black exhibiting intermediate physiological dormancy traits. Previous studies have shown that a very low germination rate under natural conditions, but exogenous GA 3 effectively enhanced of seeds. However, molecular mechanisms underlying effects S. are still unclear. In this study, transcriptomic profiles at different stages without treatment were analyzed compared, TTF, H 2...

10.3389/fpls.2024.1354141 article EN cc-by Frontiers in Plant Science 2024-06-11
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