Results 51 to 60 of about 77,413 (278)
Chengshi guidao jiaotong yanjiu[Objective] To scientifically set up the ticket gate, improve its actual passing capacity, and reduce the congestion risk caused by abnormal stagnation of the passengers, it is necessary to study the characteristics of passenger stagnation behavior ...
Qi SHI +4 more
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An Integrated Piezoelectric Inertial Actuator Controlled by Cam Mechanisms
IEEE Access, 2021 This paper presents a battery-supplied piezoelectric actuator controlled by cam mechanisms. The actuator moves by matching the phase difference between the clamp and the excitation cams.
Qitao Lu +4 more
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Deep Underground Science and Engineering, EarlyView.Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang +4 more
wiley +1 more source
Nanomaterials, 2022 Soaring developments in wearable electronics raise an urgent need for stretchable electrets. However, achieving soft electrets simultaneously possessing excellent stretchability, longevity, and high charge density is still challenging.
Jianbo Tan +7 more
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A Review of Rail Research Relevant to the Case for Increased Rail Investment. [PDF]
, 1993 The purpose of this paper is to provide a review of rail transport research which has a bearing on the case of increased rail investment. The paper focuses on research which has been conducted on the demand for rail travel, both passenger and freight ...
Fowkes, A.S. +4 more
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Temperature‐dependent shear behavior and constitutive model of the rock–concrete interface
Deep Underground Science and Engineering, EarlyView.Shear tests were conducted to investigate the temperature‐dependent shear behavior of the rock–concrete interface, highlighting the interaction between the surrounding rock and the lining during tunnel fires. Under experimental conditions, concrete exhibited greater temperature sensitivity than rock, with the shear fracture surface transitioning from ...
Hongbin Chen +6 more
wiley +1 more source
Comparative study on the thermal runaway characteristics of Li(NixCoyMnz)O2 batteries
HeliyonLithium-ion batteries (LIBs) generate substantial gas during the thermal runaway (TR) process, presenting serious risks to electrochemical energy storage systems in case of ignition or explosions. Previous studies were mainly focused on investigating the
Ningning Wei +3 more
doaj +1 more source
Urban transformations and rail stations system - the study case of Naples [PDF]
, 2005 The aim of this study is to give an interpretation of the urban transformations connected to rail transit system investments; in particular the main research goal is to analyze and give a methodological support for the urban transformation phenomena ...
Papa, E., Papa, E.
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Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source
Materials & Design, 2020 Nickel nanowires (Ni NW) with high aspect ratio and excellent electrical conductivity were prepared by liquid phase chemical reduction. Polyvinylidene fluoride (PVDF)/Ni NW composite films were fabricated by solution mixing casting and compression ...
Sunjie Hu +7 more
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