Results 11 to 20 of about 233,896 (243)
Arthroscopy Techniques, 2014 Distal clavicle fractures are common, and no standard treatment exists. Many different surgical modalities exist. This report describes an open reduction internal fixation technique that achieves both plate and coracoclavicular stabilization using a ...
Andrew Hanflik, M.D. +3 more
doaj +1 more source
Prediction Model of Drilling Performance for Percussive Rock Drilling Tool
Advances in Civil Engineering, 2020 This study suggests a method for quantitatively estimating the drilling performance of the down-the-hole (DTH) hammer during percussive drilling of rock surfaces. A pneumatic dynamic model of the DTH hammer was developed that considers the mass flow rate
Dae-Ji Kim +6 more
doaj +1 more source
Xtoys: cellular automata on xwindows [PDF]
, 1995 Xtoys is a collection of xwindow programs for demonstrating simulations of various statistical models. Included are xising, for the two dimensional Ising model, xpotts, for the $q$-state Potts model, xautomalab, for a fairly general class of totalistic ...
Bak +9 more
core +3 more sources
Drilling Processes with Hydraulic Percussion Rock Drills
Journal of MMIJ, 2017 Rock drills were developed about two hundred years ago, and hydraulic percussion rock drills are about half-century old. Performance and efficiency of rock drills have been increased by a number of researchers and engineers.
Kimihiro HASHIBA +2 more
doaj +1 more source
Learning Action Models: Qualitative Approach [PDF]
, 2015 In dynamic epistemic logic, actions are described using action models. In this paper we introduce a framework for studying learnability of action models from observations. We present first results concerning propositional action models.
Bolander, Thomas, Gierasimczuk, Nina
core +3 more sources
Penetration Test with Worn Button Bits for Rock Drilling.
Shigen-to-Sozai, 1997 Right now button bits are widely used in rock drilling. Considerable effort has been expended by manufactures to increase performance and durability of the button bits. However, most of them were conducted on try and error basis mainly because high level acceleration and vibration in rock drilling prevented accurate sensing and fundamental data ...
Seisuke OKUBO +4 more
openaire +2 more sources
Force-penetration curves of a button bit generated during impact penetration into rock
International Journal of Impact Engineering, 2015 Abstract To improve the performance and efficiency of percussion rock drills, it is essential to understand the impact penetration behavior of a bit drilling into rock. However, little knowledge to date has been published about the penetration behavior of the button bit, which is commonly used for hard rock.
K. Hashiba +4 more
openaire +3 more sources
Arthroscopy Techniques, 2018 A technique for proximal tibiofibular joint stabilization using an adjustable loop, cortical fixation device is presented. A standard diagnostic arthroscopy is performed to exclude intra-articular pathology.
William J. McNamara, M.D. +3 more
doaj +1 more source
Is my configuration any good: checking usability in an interactive sensor-based activity monitor [PDF]
, 2015 We investigate formal analysis of two aspects of usability in a deployed interactive, configurable and context-aware system: an event-driven, sensor-based homecare activity monitor system.
Calder, Muffy +2 more
core +1 more source
Force-Penetration Curves with a Button Bit in the Percussive Drilling
Journal of MMIJ, 2010 A force-penetration relationship is considered to be closely related to the deformation and fracture mechanism at the bit-rock interface. In this study, a testing machine in which a piston, a rod or a bit can be easily changed was developed for laboratory impact-penetration test simulating the in-situ percussive drilling.
Katsunori FUKUI +5 more
openaire +2 more sources