Results 71 to 80 of about 194,053 (216)
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik +2 more
wiley +1 more source
(Un)threading Rhythms: On Affect and Vibe in a Rave
ABSTRACT In Toronto, raves arise across large nightclubs, DIY venues and outdoors, despite changing regulations that have further arranged and narrowed their possibility in the past 4 years. Following a rave in Toronto, this work explores ways that potentialities and affects emerge in a single night, through my entry of taking part in dancing and ...
Tatiana Yunadi
wiley +1 more source
Structural Design and Motion Behavior Analysis of Composite Percussion Drilling Tool
The high strength, poor drillability and strong breaking-resistance of deep complex hard formation rocks often result in stick-slip vibration and premature wear of the PDC bit.
Wang Wei +4 more
doaj
Modern manufacturing industries prefer laser drilling processes owing to the adequate controlled drilling in comparison with existing alternatives. The presented experimental study mainly accounts defocusing impact along with other technical parameters ...
Saad Nawaz +7 more
doaj +1 more source
ABSTRACT What are the social processes of integrating new production technologies into existing work processes? How do management and trade union approaches shape the implementation and debugging of new technologies on the shopfloor? Drawing on the industrial relations literature on debugging and four cases of technological change at a major Canadian ...
Daniel Nicholson
wiley +1 more source
Study of the local forces along a drill edge – comparison of two methodologies [PDF]
In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially in hard to cut materials. Because of the closed aspect of the operation, the measure or evaluation of the phenomenon
M'SAOUBI, Rachid +4 more
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Improving gas bubbles’ half life in foam drilling fluid [PDF]
An underbalanced drilling using foam drilling fluid is one of the most effective solutions which are capable of preventing formation damage, differential sticking, or circulation lost.
Ismail, Ahmad Shamsulizwan +6 more
core +1 more source
Effective Geothermal Utilisation close to the surface by the TT-Geothermal Radial Drilling (GRD-)Method [PDF]
In the late 1970-Years, Tracto-Technik developped a very effective radial-shaped percussion system for a geothermal heating, the ECOtherm-System, which was very well accepted by customers.
Hans-Joachim Bayer
doaj
Flow structure and rock-breaking feature of the self-rotating nozzle for radial jet drilling
For improving the hole-enlarging capability, roundness and rock-breaking efficiency of the nozzle in radial jet drilling, a new structure of self-rotating nozzle was put forward.
Hua-Lin Liao +5 more
doaj +1 more source
University Percussion Ensemble, December 4, 1974
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan, December 4, 1974, as part of the Festival of new music, Department of Music’s 1974-1975 season.University Percussion Ensemble, Don Baker ...
Western Michigan University. Percussion Ensemble
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