Ziwei Yang

Anhui Medical University

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Ziheng Lu

Beijing University of Chemical Technology

Guoxiao Li

Shenzhen Institutes of Advanced Technology

Peifei Tong

Shenzhen Institutes of Advanced Technology

Bairav S. Vishnugopi

University of Michigan–Ann Arbor

Chunlei Yang

Shenzhen Institutes of Advanced Technology

Partha P. Mukherjee

Purdue University West Lafayette

Jinlong Han

Shenzhen Institutes of Advanced Technology

Kai Wang

Institute of Electrical Engineering

Yuchen Zheng

Shihezi University

Lixiao Cao

Yanshan University

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Chinese Academy of Sciences

Shenzhen Institutes of Advanced Technology

Shanghai University

University of Chinese Academy of Sciences

University of Hong Kong

Hebei University of Science and Technology

Yanshan University

Hong Kong Polytechnic University

Anhui University of Science and Technology

South China University of Technology

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Deformation detection of mine tunnel based on VSLAM 3D dense point cloud slice

Lili Mu Tianqi Wang Ziwei Yang Xunjie Li Tianbing Ma

At present, the non-contact measurement of mine tunnel deformation is mainly realized by laser scanning technology. To address the issues of poor flexibility, slow detection speed, and low automation in multi-site measurement, a new method for tunnel deformation detection is proposed that combines visual SLAM (simultaneous localization and mapping) and 3D point cloud slicing technology. The mobile robot carries a depth camera to continuously capture RGB and depth images of underground tunnels and uses the visual SLAM algorithm to reconstruct the entire 3D dense map of underground tunnels. A composite filtering method is designed for point cloud denoising. Comparative tests were conducted on the reconstruction effect of point cloud structures under different lighting conditions. The dense point clouds in the whole area at different times are sliced, and the deformation volume and position of the roadway are accurately identified through pairing comparison with skeleton line algorithm and point cloud slicing algorithm. The experimental results show that this method can establish a high-precision 3D dense model of underground tunnels under lighting conditions above 50lx. The composite filtering method can remove a large amount of point cloud noise, and the measurement error of tunnel deformation point cloud is less than 5 mm. It can achieve precise detection of tunnel deformation and determination of deformation position, with fast detection speed, and can meet the needs of under-ground tunnel deformation detection in coal mines.

Position (finance)

Deformation monitoring

RGB color model

10.1117/12.2691554

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Citations (2)

Enabling efficient hydrogen-evolution reaction over perovskite oxide electrocatalysts through phosphorus promotion

International Journal of Hydrogen Energy (2020)

Zhenbao Zhang Wulan Zhou Ziwei Yang Jiahui Jiang Dengjie Chen

Oxygen evolution

10.1016/j.ijhydene.2020.06.298

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Citations (31)

Exergy and exergoeconomic analyses of solar and biomass electricityed trigeneration system integrated with organic Rankine cycle under thermodynamic function

Renewable Energy (2025)

Kun Yang Ziwei Yang Na Du Yuzhu Chen Yufei Chai

Organic Rankine Cycle

Degree Rankine

Rankine cycle

10.1016/j.renene.2025.122496

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Citations (0)

Solid‐State Batteries: Modulating Nanoinhomogeneity at Electrode–Solid Electrolyte Interfaces for Dendrite‐Proof Solid‐State Batteries and Long‐Life Memristors (Adv. Energy Mater. 16/2021)

Advanced Energy Materials (2021)

Ziheng Lu Ziwei Yang Cheng Li Kai Wang Jinlong Han

In article number 2003811, Ziheng Lu, Chunlei Yang, Wenjie Li and co-workers develop a high-resolution in-situ electrochemical characterization technique to reveal the nanoscale kinetics of lithium dendrites in solid-state batteries. Practical solid-state batteries are demonstrated by constructing flux-homogenizing interfaces. Memristors are designed based on the electrochemical healing behavior of dendrites for neuromorphic computing.

Memristor

Dendrite (mathematics)

Neuromorphic engineering

Electrochemical energy conversion

Fast ion conductor

10.1002/aenm.202170062

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Citations (0)

Magnetically recyclable HPW@ mSiO2/hydrophobic GO with adjustable polarity used for oxidative desulfurization in Pickering emulsion

Fuel (2022)

Shuai‐Yong Dou Jia-Yu An Ziwei Yang Weiping Zhang Tian-yuan Wu

Pickering emulsion

Magnetism

10.1016/j.fuel.2022.123239

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Citations (15)

Promotional effects of Fe2O3 additive on the NH3-SCR activity and alkali resistance of MoTiOx catalysts

Separation and Purification Technology (2024)

Ziwei Yang Liang Tang Hao Yuan Daijun Meng Yue Sun

Selective catalytic reduction

10.1016/j.seppur.2024.128026

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Citations (3)

Optimization of multi-carrier energy system based on new operation mechanism modelling of power-to-gas integrated with CO2-based electrothermal energy storage

Energy (2020)

Ying‐Yao Cheng Mingbo Liu Honglin Chen Ziwei Yang

Power-to-Gas

Energy carrier

10.1016/j.energy.2020.119269

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Citations (44)

Modulating Nanoinhomogeneity at Electrode–Solid Electrolyte Interfaces for Dendrite‐Proof Solid‐State Batteries and Long‐Life Memristors

Advanced Energy Materials (2021)

Ziheng Lu Ziwei Yang Cheng Li Kai Wang Jinlong Han

The penetration of dendrites in ceramic lithium conductors severely constrains the development of solid-state batteries (SSBs) while its nanoscopic origin remain unelucidated. We develop an in-situ nanoscale electrochemical characterization technique to reveal the nanoscopic lithium dendrite growth kinetics and use it as a guiding tool to unlock the design of interfaces for dendrite-proof SSBs. Using Li7La3Zr2O12 (LLZO) as a model system, in-situ nanoscopic dendrite triggering measurements, ex-situ electro-mechanical characterizations, and finite element simulations are carried out which reveal the dominating role of Li+ flux detouring and nano-mechanical inhomogeneity on dendrite penetration. To mitigate such nano-inhomogeneity, an ionic-conductive homogenizing layer based on poly(propylene carbonate) is designed which in-situ reacts with lithium to form a highly conformal interphase at mild conditions. A high critical current density of 1.8mA cm-2 and a low interfacial resistance of 14{\Omega} cm2 is achieved. Practical SSBs based on LiFePO4 cathodes show great cyclic stability without capacity decay over 300 cycles. Beyond this, highly reversible electrochemical dendrite healing behavior in LLZO is discovered using the nano-electrode, based on which a model memristor with a high on/off ratio of ~10^5 is demonstrated for >200 cycles. This work not only provides a novel tool to investigate and design interfaces in SSBs but offers also new opportunities for solid electrolytes beyond energy applications.

Dendrite (mathematics)

Fast ion conductor

Memristor

Electrochemical window

10.1002/aenm.202003811

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Citations (52)

Study on the influence of buried pipe fault on the operation of ground source heat pump system

Renewable Energy (2023)

Xueping Zhang Li Gui Zongwei Han Ziwei Yang Weiqiang Bi

Coefficient of performance

Heat load

Blocking (statistics)

10.1016/j.renene.2023.04.039

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Citations (7)