Results 71 to 80 of about 346,668 (315)

Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping

Advanced Materials, EarlyView.
Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe, Lei Zhang, Yi Ning Zheng, Xiao Qing Chen, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Tie Jun Cui, Vincenzo Galdi   +8 more
wiley   +1 more source

Reliable and Reusable All‐Solid‐State Contact‐Type Pre‐Lithiation Platform for High‐Performance All‐Solid‐State Batteries

Advanced Materials, EarlyView.
A reusable contact‐type pre‐lithiation platform enables uniform, precisely controllable pre‐lithiation at low stack pressure, suppressing interfacial degradation and thereby markedly improving initial Coulombic efficiency and cycling performance in all‐solid‐state batteries.
Yunho Lee, Yongjun Kwon, Juhyeong Noh, Seok Hun Kang, Kyubeen Kang, Junhyeok Choi, Young‐Gi Lee, Jaecheol Choi, Hyeong Min Jin, Yong Min Lee, Ju Young Kim   +10 more
wiley   +1 more source

Deconstructing Africa's Urban Space: Sustainable Development and Spatial Planning Challenge [PDF]

, 2021
In this chapter, an analysis of the relationship between sustainable development and spatial planning, and how that shapes the urban space is presented. While the literature is replete with sustainable development and spatial planning research, little is
Patrick Brandful Cobbinah, Michael Odei Erdiaw-Kwasie, Basson, Marita, Cobbinah, Patrick Brandful, Erdiaw-Kwasie, Michael Odei, Marita Basson   +5 more
core   +1 more source

Numerical Simulation Study on Lateral Displacement of Pile Foundation and Construction Process under Stacking Loads

Complexity, 2018
Lateral displacement of pile foundation is crucial to the safety of an overall structure. In this study, a numerical simulation on the lateral displacement of pile foundation under stacking loads was conducted to determine its relation with different ...
Yan-yan Cai, Bing-xiong Tu, Jin Yu, Yao-liang Zhu, Jian-feng Zhou   +4 more
doaj   +1 more source

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

Advanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang, Shiyi Wang, Bingzhi Chen, Xinwei Li   +3 more
wiley   +1 more source

Urban space production in transition : the cases of the new urban areas of Hanoi [PDF]

, 2015
In recent decades, hundreds of master-planned new urban areas (NUAs) have developed on the urban fringes of expanding cities in Vietnam. They are promoted as a new urban planning concept in the post-reform policies.
Tran, Hoai Anh
core  

Characteristics of resistivity variation in deep granite and in-situ detection applications

Scientific Reports
During the construction of deep vertical shafts, water inrush and flooding accidents are prone to occur, which seriously affect construction safety. Accurately determining the groundwater conditions is a prerequisite for effectively controlling water ...
Zhen Fu, Yuezheng Zhang, Hongguang Ji, Chunrui Zhang, Dongsheng Chen, Yuan Qin   +5 more
doaj   +1 more source

Wear mechanism and life prediction of the ripper in a 9‐m‐diameter shield machine tunneling project of the Beijing new airport line in a sand‐pebble stratum

Deep Underground Science and Engineering, 2022
Tool wear is a noteworthy problem in the process of shield tunneling, and the degree of wear varies with stratum. The sand‐pebble strata in Beijing are typically mechanically unstable.
Hua Jiang, Jiachen Zhu, Xiaoyan Zhang, Jinxun Zhang, Hongliang Li, Lingfeng Meng   +5 more
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

Transience and durability in Japanese urban space [PDF]

, 2010
The thesis addresses the research question “What is transient and what endures within Japanese urban space” by taking the material constructed form of one Japanese city as a primary text and object of analysis.
ROBINSON, WILFRED,IAIN,THOMAS, Robinson, Wilfred Iain Thomas   +1 more
core