Results 31 to 40 of about 1,981,740 (257)

Tunnel boring machine cutterhead crack propagation life prediction with time integration method

Advances in Mechanical Engineering, 2019
Fatigue damage is one of the most common failure modes of large-scale engineering equipment, especially the full-face tunnel boring machine with characteristics of a thick plate structure bearing strong impact load.
Jianbin Li, Zhange Zhang, Zhichao Meng, Junzhou Huo, Zhaohui Xu, Jing Chen   +5 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Numerical simulation of ground surface settlement of underpass building in tunnel boring machine double-line tunnels

Frontiers in Earth Science, 2022
Ground surface settlement under subway tunnel construction is one of the main sources of urban ground surface settlement, which may threaten the safety of existing buildings. Therefore, it is necessary to study the influence of subway tunnel construction
Ting Ren, Hailong Zhang, Yuancheng Guo, Yang Tang, Qinglin Li   +4 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Rapid assembly bolt connection design method for TBM disc cutter box based on AHP

Advances in Mechanical Engineering
With the TBM disc cutter box as the subject of investigation, this study addresses the intricate and labor-intensive nature of the assembly process in TBM disc cutter box welding assembly.
Chunya Sun, Xuan Zhao, Yanqiu Xiao, Guangzhen Cui, Lianhui Jia, Shengquan Wu, Wei Zhang, Baoping Shang   +7 more
doaj   +1 more source

Evaluation of the applicability of earth pressure distribution and calculation methods for large-section quasi-rectangular shield tunnel in sandy stratum

Alexandria Engineering Journal
Based on a large-section quasi-rectangular shield tunnel project of Zhengzhou Metro Line 8, this study conducts a full-scale field experiment to investigate the influence of various construction loads on the external load of the tunnel structure during ...
Jing-kun Pi, Shi-ju Ma, Kai-rong Hong, Yong-gang Ding, Ya-jie Dang, Zhen-peng Chen   +5 more
doaj   +1 more source

Underpassing of Angel Underground by London ring main extension tunnel [PDF]

, 2011
This paper presents the predictions of movements, monitoring methods and measured movements of the Angel Station Upper Escalator and the Northern Line London Underground tunnels during tunnelling for the Thames Water Ring Main Extension Stoke Newington ...
Jones, Benoît
core  

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Probing the damage constitutive modeling of low-heat cement concrete subjected to acid deposition

Materials & Design
The performance of low-heat cement concrete (LHCC) in high arch dams under sulfuric-nitric acid deposition remains insufficiently understood. This study conducted laboratory simulation tests involving coupled acid deposition immersion and temperature ...
Kun Wang, Binglin Li, Jinjun Guo
doaj   +1 more source

The behaviour of a two-component backfilling grout used in a Tunnel-Boring Machine [PDF]

, 2011
The instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance is an operation of paramount importance.
Borio, Luca, Peila, Daniele, Pelizza, Sebastiano   +2 more
core