Results 41 to 50 of about 287,346 (143)

Elektric rotary-percussion drilling machine of high power –feasibility study [PDF]

open access: yes
Rotary-percussion drilling machines are commonly used for drilling hard-to-cut and abrasive rocks. Currently, in underground mining, drilling jumboswith hydraulic drilling machinesand rotary percussion drilling machines are used in chamber-and-pillar ...
Kozłowski, Artur   +3 more
core   +1 more source

Evaluation of the performance of coated and uncoated carbide tools in drilling thick CFRP/aluminium alloy stacks [PDF]

open access: yes, 2013
This paper aims to establish the wear mechanisms of coated and uncoated tungsten carbide drills when drilling carbon fibre reinforced plastics (CFRP)/aluminium alloy (Al) stacks. During the drilling experiments, thrust forces were measured.
MONTOYA, Maxime   +3 more
core   +1 more source

The Sanitization of the Night: Gentrification and the Everyday Temporal Politics in Belgrade

open access: yesCity &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
wiley   +1 more source

A Stepwise Approach to Managing Bilateral Maxillary Sinus Tracts: A Case Report

open access: yesClinical Case Reports, Volume 14, Issue 7, July 2026.
ABSTRACT This case report describes a rare presentation of bilateral intraoral sinus tracts of odontogenic origin associated with a maxillary right first molar (Universal #3). A key diagnostic challenge was differentiating an endodontic infection from vertical root fracture (VRF) in a previously treated tooth; no J‐shaped probing defect was detected ...
Ali Chamani   +3 more
wiley   +1 more source

Rotary percussion method in drilling of borehole heat exchangers [PDF]

open access: yes, 2015
Artykuł zawiera opis udarowo-obrotowej metody wiercenia. Wykorzystuje się ją z coraz większym powodzeniem przy różnego rodzaju wierceniach. Jednym z ważnych zastosowań jest wykonywanie otworowych wymienników ciepła.The article contains a description of ...
Śliwa, T., Topczewska, K., Klepczyk, K.
core  

Coral reef and mangrove interplay during Holocene sea level changes, Belitung Island, Indonesia

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 7, July 2026.
The fate of mangroves and coral reefs during the ongoing sea level rise depends not only on our ability to preserve the ecosystems but also on their geological preconditioning. Therefore, strategies to preserve mangrove ecosystems, while undoubtedly essential, wecan only be successful if accounting for their geological history. Abstract Coral reefs and
Tubagus Solihuddin   +11 more
wiley   +1 more source

University Percussion Ensemble, December 11, 1986

open access: yes, 2016
Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, December 11, 1986, 9:00 p.m., the 151st concert of the School of Music's 1986-1987 season.Members of the University Percussion Ensemble in
Western Michigan University. Percussion Ensemble
core   +2 more sources

Luminescence dating of coastal deposits from the Chanthaburi Plain, Thailand

open access: yesBoreas, Volume 55, Issue 3, Page 846-865, July 2026.
The ongoing global sea‐level rise urges us to better understand the dynamics of coastal processes for predicting future changes. Sedimentary deposits reflect past coastal environments but require precise chronological data to place evidence into a temporal context.
Margarita Nuss   +6 more
wiley   +1 more source

Embedded Drilling System using Rotary-percussion Drilling

open access: yes, 2017
The drilling technology is widely used in various fields. This technology has been developed explosively by large companies. However, conventional drilling system requires large equipment such as a rig and mud systems.
Kim, Jinkwang   +2 more
core   +1 more source

Deep Caries Management: EFCD‐ESE‐ORCA S3‐Level Clinical Practice Guideline

open access: yesInternational Endodontic Journal, Volume 59, Issue 7, Page 1298-1315, July 2026.
ABSTRACT Objective To develop an evidence‐based S3‐level clinical practice guideline for the management of deep and extremely deep caries in vital permanent teeth. Methods An evidence‐based medical guideline based on systematically searched and appraised evidence as well as a structured consensus (S3‐level) was jointly developed by the European ...
Falk Schwendicke   +11 more
wiley   +1 more source

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