Results 61 to 70 of about 15,510 (221)

Constant-length substitutions and countable scrambled sets

, 2008
In this paper we provide examples of topological dynamical systems having either finite or countable scrambled sets. In particular we study conditions for the existence of Li-Yorke, asymptotic and distal pairs in constant--length substitution dynamical ...
Blanchard, François, Durand, Fabien, Maass, Alejandro   +2 more
core   +1 more source

Survey and Sequence Strategies for Full‐3D Electrical Resistivity Tomography in Archaeological Sites: A Case Study on a Domus of the Roman Town of Augusta Bagiennorum (NW Italy)

Archaeological Prospection, Volume 33, Issue 1, Page 87-107, January/March 2026.
ABSTRACT Preliminary geophysical investigations are a cost‐effective and efficient way to screen archaeological sites and locate buried structures. Ground‐penetrating radar (GPR) is one of the most widely used methods for archaeological prospection, but in some sites, it cannot be employed effectively due to the presence of clay or other electrically ...
Andrea Vergnano, Diego Franco, Antonio Merico, Francesca Pace, Sofia Uggè, Cesare Comina   +5 more
wiley   +1 more source

Straightness Measurement Based on FOG-IMU and Shearer Motion Constraints for Longwall Coal Mining

Advanced Devices & Instrumentation
Straightness measurements of fully mechanized coal faces are a core requirement for intelligent, comprehensive coal mining. In coal mining, using an inertial measurement unit (IMU) assisted by an odometer for straightness measurement is vital for ...
Ziqin Shang, Shaohua Chen, Guannan Li, Yi Zheng, Jianping Dai, Jinbo Qiu, Huizhu Hu   +6 more
doaj   +1 more source

Safety Relevant Positioning Applications in Rail Traffic using the European Satellite System "Galileo" [PDF]

, 2006
Die Ortung im Eisenbahnverkehr hat eine hohe sicherheitstechnische Relevanz. Eine falsch detektierte Position eines Fahrzeugs kann zu einer erheblichen Gefährdung führen, da die ermittelte Ortsinformation für die Freigabe und das Wiederbesetzen von ...
Grimm, Matthias, Hartwig, Katrin, Lemmer, Karsten, Meyer zu Hörste, Michael   +3 more
core  

A compact lightweight multipurpose ground-penetrating radar for glaciological applications

, 2011
We describe a compact lightweight impulse radar for radio-echo sounding of subsurface structures designed specifically for glaciological applications. The radar operates at frequencies between 10 and 75 MHz.
Frolovskiy, K., Lapazaran Izargain, Javier Jesús, Machío, F., Navarro Valero, Francisco Jose, Vasilenko, Evgeniy   +4 more
core   +2 more sources

LLIO: Lightweight Learned Inertial Odometer [PDF]

, 2021
<div><div>The 3D position estimation of pedestrians is a vital module to build the connections between persons and things.</div><div>The traditional gait model-based methods cannot fulfill the various motion patterns.</div><div>And the various data-driven-based inertial odometry solutions focus on the 2D trajectory ...
xiaoji niu, Jian Kuang, Yan Wang
openaire   +1 more source

Creating a Critical Zone: Feedbacks Between Bedrock Geology, Water Retention, and Vegetation on an Exposed Bedrock Surface, Panola Mountain, Georgia, USA

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.
Abstract Most of Earth's present‐day terrestrial surface is covered by regolith—the layers of soil, saprolite, and weathered bedrock that together comprise the critical zone. Recent research has focused on understanding fluxes of minerals, water, and energy through the critical zone under steady state assumptions.
Sean P. Bemis, W. Steven Holbrook, Brady Flinchum, Jorden Hayes, Russell Callahan, Ciaran Harman, Brad Carr, Cliff Riebe   +7 more
wiley   +1 more source

Speed Consistency in the Smart Tachograph

Sensors, 2018
In the transportation sector, safety risks can be significantly reduced by monitoring the behaviour of drivers and by discouraging possible misconducts that entail fatigue and can increase the possibility of accidents.
Daniele Borio, Eduardo Cano, Gianmarco Baldini   +2 more
doaj   +1 more source

Deformation Analysis of Deep Foundation Pits Based on Fluid–Structure Interaction

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
In foundation pit engineering design, the seepage‐induced impact of groundwater is often oversimplified when calculating the deformation of the retaining structure and the surrounding soil caused by excavation. Moreover, the coupled interaction between groundwater and soil is neglected, causing simulated conditions to deviate from actual site ...
Dong Li, Qisheng Li, Zongchen Han, Guohong Zeng, Yuwen Ju, Arnab Biswas   +5 more
wiley   +1 more source

Underground multi-sensor integrated navigation system

Gong-kuang zidonghua, 2019
In view of problems of high cost of high-precision inertial navigation of underground vehicle and large drift of low-cost MEMS inertial sensor, an underground multi-sensor integrated navigation system was proposed, which uses bluetooth ranging ...
ZHANG Yuangang, LIU Kun, BAI Meng, PENG Jiguo   +3 more
doaj   +1 more source