Results 61 to 70 of about 568,250 (204)
ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley +1 more source
LQR Control of Axial-Torsional Bidirectional Vibration of Drill String in Oil and Gas Wells
To effectively solve the failure problem induced by axial-torsional bidirectional vibration of drill string, with the help of the 3-DOF dynamics model of drill pipe, a simulation study was performed on the suppression of linear quadratic regulator (LQR ...
Li Xinye +4 more
doaj +3 more sources
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello +2 more
wiley +1 more source
Tactile Perception of 3D‐Printed Typodont Materials in Dental Education: A Systematic Review
ABSTRACT Background Adoption of additive manufacture of printed typodonts within dentistry for education occurs despite inadequate reproduction of desirable tactile characteristics of human tooth tissues. Variable findings regarding material properties and educational outcomes of 3D‐printed typodonts are reported.
Alice M. G. Cheadle +5 more
wiley +1 more source
NGH (natural gas hydrate) is a sort of green energy with huge reserves. When drilling and exploiting NGH, the complex drilling environment will aggravate the vibration of the drill string, which will destroy the stability of the NGH reservoir and make it
Baojin Wang +3 more
core +1 more source
Teaching Through Making: |xam and !xun Material Culture of the Bleek and Lloyd Collection
ABSTRACT At Wits Art Museum (University of the Witwatersrand, Johannesburg, South Africa) is a small collection donated to the former Wits Museum of Ethnology by Percival Kirby in 1952. A note in the accession register ties the items into the context of the renowned ‘Bushman researches’ of Wilhelm Bleek and Lucy Lloyd in Cape Town in the 1870s and ...
Vibeke M. Viestad, Justine Wintjes
wiley +1 more source
Experimental Research on Lateral Vibration of Drill String in the Highly Deviated Well
Drilling is one of the most costly and risky activities in oil and gas reservoir exploration and field development. A portion of this high cost is related to unwanted vibrations of the drill string.
Xin Wen +3 more
core +1 more source
Application of Shock Absorber based on Bit-rock Interaction
In order to obtain the optimal parameters of shock absorber and thus reduce the downhole vibration intensity in the process of rock-breaking drilling of bit,on the basis of considering the dynamic coupling of drill string,bit and rock system,taking the ...
Hu Zhiqiang +5 more
doaj
Experimental methods in chemical engineering: Cyclic voltammetry—CV
Abstract Cyclic voltammetry (CV) is a foundational electroanalytical technique for investigating redox behaviour and evaluating material performance across fields such as molecular electrochemistry, electrocatalysis, sensing, and energy storage. Despite its widespread use, a gap remains between formal electrochemical theory and the practical data ...
Yasser Matos‐Peralta +4 more
wiley +1 more source
Helical Buckling of Drill-Strings
This paper presents experimental and numerical investigations of the complex drill-string vibration, with particular attention to the helical buckling of drill-strings and its influence on the system dynamics.
Kapitaniak Marcin +2 more
doaj +1 more source

