Results 31 to 40 of about 31,564 (295)
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 +2 more
core
Advanced Intelligent Systems, EarlyView.This paper presents a degeneracy‐aware light detection and ranging (LiDAR)‐inertial framework that enhances LiDAR simultaneous localization and mapping performance in challenging environments. The proposed system integrates a dual‐layer robust odometry frontend with a Scan‐Context‐based loop‐closure detection backend.
Haoming Yang +4 more
wiley +1 more source
Chengshi guidao jiaotong yanjiuObjective The unloading-induced upheaval deformation resulting from river excavation above metro shield tunnels may affect metro tunnel normal operation.
Ru YE +5 more
doaj +1 more source
Why Mass Media Matter to Planning Research: The Case of Megaprojects
, 2012 This article asks how planning scholarship may effectively gain impact in planning practice through media exposure. In liberal democracies the public sphere is dominated by mass media.
Flyvbjerg, Bent
core +1 more source
Advanced Intelligent Systems, EarlyView.Female desert locusts dig underground to lay their eggs. They displace soil, rather than removing it, to create a tunnel. We analyze burrowing dynamics and 3D kinematics and design a locust‐inspired hybrid soft–stiff robot that reproduces this mechanism. The results show the natural strategy minimizes energy, whereas alternative patterns raise costs up
Shai Sonnenreich +2 more
wiley +1 more source
Applied Sciences, 2023 Due to the complexity of underground environmental conditions and operational incidents, advanced and accurate monitoring of the underground metro shield tunnel structures is crucial for maintenance and the prevention of mishaps. In the past few decades,
Nadeem Abbas +5 more
doaj +1 more source
Study on the Fragmentation Characteristics and Dust Generation Mechanism of Coal Cutting by Pick
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT During underground excavation, coal dust generation threatens miners' health and damages ecosystems. Its generation is directly influenced by cutting pick performance and inherent coal properties. This study investigates the effects of coal properties and cutting parameters on coal fragmentation characteristics from a mesoscopic perspective ...
Shihang Li +10 more
wiley +1 more source
Investing in Mobility: Freight Transport in the Hudson Region [PDF]
, 2004 Proposes a framework for assessing alternative investments in freight rail, highway, and transit capacity that would increase the ability to improve mobility and air quality in the New York metropolitan ...
Adam Gitlin +6 more
core
DInSAR deformation time series for monitoring urban areas: The impact of the second generation SAR systems [PDF]
, 2012 We investigate the capability improvement of the DInSAR techniques to map deformation phenomena affecting urban areas, by performing a comparative analysis of the deformation time series retrieved by applying the full resolution Small BAseline Subset ...
A. Pepe +4 more
core +1 more source
Early synapsids neurosensory diversity revealed by CT and synchrotron scanning
The Anatomical Record, EarlyView.Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit +6 more
wiley +1 more source