Results 41 to 50 of about 252 (179)
Penetration Characteristics of a Rock Drill Bit into Rock
Journal of MMIJPercussion rock drills have been widely used mainly for blast hole drilling in mineral extraction, tunnel excavation, and underground development.
Kimihiro HASHIBA, Katsunori FUKUI
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British Journal of Industrial Relations, Volume 64, Issue 3, Page 467-479, September 2026.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
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A Piezoelectric-Driven Rock-Drilling Device for Extraterrestrial Subsurface Exploration
Shock and Vibration, 2018 The rocks on extraterrestrial objects contain plenty of original geological and biological information. Drilling and sampling are an essential task in lunar exploration or future explorations of other planets like mars. Due to the limitation of payloads,
He Li +5 more
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The electric percussion drill in theory and practice [PDF]
Transactions of the American Institute of Electrical Engineers, 1892 n ...
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Land Degradation &Development, Volume 37, Issue 13, Page 9114-9125, 15 August 2026.ABSTRACT Salt affected soils are common worldwide, resulting from natural causes and anthropogenic activities. Saline and sodic soils often occur in association with oil and gas production, impacting soil properties which can impede vegetation growth and development.
Laura Bony +3 more
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The Sanitization of the Night: Gentrification and the Everyday Temporal Politics in Belgrade
City &Society, Volume 38, Issue 2, August 2026.ABSTRACT Urban scholarship increasingly recognizes that processes such as gentrification unfold not only through spatial transformations, but through shifts in sensory environments and everyday rhythms. In this paper, drawing on twenty‐three months of fieldwork in Belgrade, I examine how urban redevelopment (re)organizes time for middle‐class people ...
Alexandra Dantzer
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Applied SciencesRotary-percussive drilling is extensively used for efficient hard rock breakage, and the performance of impregnated diamond bits (IDBs) is primarily governed by matrix characteristics and diamond parameters.
Zhiming Wang +5 more
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Dental Traumatology, Volume 42, Issue 4, Page 461-475, August 2026.ABSTRACT Background/Aims To evaluate the prevalence and timing of post‐operative complications following tooth autotransplantation, identify factors associated with earlier diagnosis, and report long‐term survival and success rates. Materials and Methods A single‐centre retrospective cohort study was conducted at a Czech university dental clinic (2003 ...
Juraj Marton +5 more
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Energy Science & EngineeringThe effect of improving the depth of penetration (ROP) in deep, high‐confining pressure formation is closely related to the rock‐breaking method, which has become a bottleneck restricting the efficient development of oil and gas.
Jiwei Li
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Clinical Case Reports, Volume 14, Issue 7, July 2026.ABSTRACT A standardized static‐guided framework integrating CBCT and intraoral scanning provides predictable, minimally invasive management for diverse intracanal obstructions. This unified digital workflow ensures precise root canal localisation in severe obliteration and conservative retrieval of fractured fiber or ultra‐hard posterior zirconia posts
Xinxuan Wang, Xuguang Li, Baicheng Yi
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