Results 71 to 80 of about 915,918 (286)

Convergence Deformation of Existing Shield Tunnel Induced by Adjacent Shield Tunnelling Construction

AbstractThe subway system has benefited the transportation in a lot of modern cities with advantages such as convenience, rapidity, large volume, etc. However, with the construction of more and more subway systems, the underground space is increasingly crowded.
Y. J. Song, C. R. Lu, X. J. Li, L. A. Zhao, X. W. Ye, T. Jin   +5 more
openaire   +1 more source

Electrically Tunable Piezotronic Transistor by Coupling Interface Polar Symmetry and Strain Gradient

Advanced Science, EarlyView.
A macroscale tip‐induced strain gradient generates bulk piezo‐charges in GaN, enabling bias‐controlled shielding and selective Schottky barrier modulation. This strain‐gradient piezotronic transistor exhibits electrically switchable high‐ and low‐sensitivity states, providing ultrahigh strain sensitivity and wide tunability for adaptive mechanical ...
Gongwei Hu, Xiaoming Dong, Yihan Zhang, Yong Chao, Menglu Li, Min Liu, Liqing Pan, Lijie Li, Wei Huang, Fobao Huang   +9 more
wiley   +1 more source

Prediction Model of Shield Performance During Tunneling via Incorporating Improved Particle Swarm Optimization Into ANFIS

IEEE Access, 2020
This paper proposes a new computational model to predict the earth pressure balance (EPB) shield performance during tunnelling. The proposed model integrates an improved particle swarm optimization (PSO) with adaptive neurofuzzy inference system (ANFIS ...
Khalid Elbaz, Shui-Long Shen, Wen-Juan Sun, Zhen-Yu Yin, Annan Zhou   +4 more
doaj   +1 more source

Deep reinforcement learning approach to optimize the driving performance of shield tunnelling machines

Tunnelling and Underground Space Technology, 2023
Khalid Elbaz, Annan Zhou, Shuilong Shen
semanticscholar   +1 more source

Two‐Dimensional Layered Materials for Aqueous Zinc‐Ion Batteries: Multifunctional Roles and Mechanistic Insights

Advanced Science, EarlyView.
This overview summarizes versatile 2D layered materials for AZIB anodes, cathodes, separators and electrolytes, illustrating their dendrite/side reaction suppression mechanisms, and analyzes existing hurdles to propose scalable commercial research outlooks.
Shuge Dai, Chenke Yang, Yunrui Jiang, Gaopan Liu, Jianbin Zhou, Ye Wang, Longhui Zeng, Yuen Hong Tsang   +7 more
wiley   +1 more source

Deflections of discontinuous buried pipelines induced by shield tunnelling based on Pasternak foundation

Yantu gongcheng xuebao, 2019
An accurate prediction of deflections of the buried pipelines induced by shield tunnelling is essential to their damage evaluation and control. By introducing the Pasternak foundation model, the finite difference method is used to deduce a solution to ...
LIN Cun-gang 1,2, HUANG Mao-song 1,2
doaj   +1 more source

Multiscale Modelling of the Electrocatalysis of Microenzymes: Insights Into the Performance of Microperoxidase at an Aqueous/Graphene Interface and Their Exploitation to Improve Performance

Advanced Science, EarlyView.
A novel multiscale MD/DFT framework to elucidate microenzyme adsorption and electron transfer is reported. This method reveals distinct configurations for microperoxidase‐11 on graphene and those best suited for electron transfer. Rate constants align with the limited experimental data, establishing this framework as a tool for optimizing microenzyme ...
Milan Mijajlovic, Cheng Hu, Yuhui Sun, Matthew J. Penna, Meisam V. Kiamahalleh, Wenrong Yang, Mark J. Biggs   +6 more
wiley   +1 more source

Cobalt Single‐Atom Nanozyme for Enhanced Intestinal Radioprotection and Tumor Radiosensitization via Bidirectional ROS Modulation

Advanced Science, EarlyView.
Orally administered, pH‐responsive Co‐SAN exerts dual functions: in the alkaline intestinal milieu, it scavenges reactive oxygen species (ROS) and suppresses the PI3K/AKT pathway and NETs formation, thus providing radioprotection; whereas in the acidic tumor microenvironment, it generates ROS and alleviates hypoxia, thereby enhancing radiosensitization.
Shengqi Yin, Junjie Li, Yishu Zou, Yang Liu, Yilin Zheng, Lu Yu, Wanying Zheng, Yajun Zou, Zehui Zhang, Tao Li, Peiqun Yin, Jianlin Zhang, Yuen Wu, Yi Ding   +13 more
wiley   +1 more source

K-means Clustering and Control Analysis of Main Tunneling Parameters of Mud-Water Balanced Shields in Water-Rich Round Gravel Strata

Zhongwai Gonglu
It is important to set reasonable tunneling parameters according to the ground conditions to reduce the deformation of existing tunnels, since the close crossing of new shield tunnels is likely to cause deformation in the adjacent existing tunnels. The K-
LYU Yiye, PEI Lihua, LIN Dong, YANG Xingyu, GUI Yue   +4 more
doaj   +1 more source

GFII: A new index to identify geological features during shield tunnelling

Tunnelling and Underground Space Technology, 2023
Tao Yan, Shuilong Shen, Annan Zhou
semanticscholar   +1 more source