Results 91 to 100 of about 698,688 (236)

Indirect multisignal monitoring and diagnosis of drill wear [PDF]

, 2006
A machine tool utilisation rate can be improved by an advanced condition monitoring system using modern sensor and signal processing techniques. A drilling test and analysis program for indirect tool wear measurement forms the basis of this thesis.
Jantunen, Erkki
core  

Tribo-corrosion of steel in artificial saliva [PDF]

, 2014
Stainless steel is widely used as dental implant. However, there has been little work on the micro-abrasion of such materials in laboratory simulated oral environments, where abrasion, sliding wear can interact simultaneously.
Holmes, D., Sharifi, S., Stack, M. M.
core   +1 more source

Reply to Letter: “Limitations of Complement Activity Assays as Biomarkers for Ravulizumab Therapeutic Monitoring” by Saccà and Pelto Regarding “Inhibition of Classical and Alternative Complement Pathway by Ravulizumab and Eculizumab”

Annals of Clinical and Translational Neurology, EarlyView.
Lea Gerischer, Jutta Schroeder‐Braunstein, Guido Wabnitz, Andreas Meisel   +3 more
wiley   +1 more source

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Learning how to knap flint on the Aurignacian site of Bourg-Charente (Charente, France): cognitive interactions and societal implications

Gallia Préhistoire
. The Palaeolithic site of Bourg-Charente (Charente, France) is a multi-level site on a calcareous slope on the left bank of the Charente River (France).
Nelly Connet, Pascal Bertran, Émilie Claud, Blandine Larmignat, Ève Boitard   +4 more
doaj   +1 more source

Tribological investigations of the piston assembly and liner of a gasoline engine [PDF]

, 2008
The automotive industry is being forced towards greater efficiency, increased engine power from smaller engines and lower environmental impact by both governmental legislation and public opinion.
Lee, P.M.
core  

Old stones' song: Use-wear experiments and analysis of the Oldowan quartz and quartzite assemblage from Kanjera South (Kenya) [PDF]

, 2014
Evidence of Oldowan tools by w2.6 million years ago (Ma) may signal a major adaptive shift in hominin evolution. While tool-dependent butchery of large mammals was important by at least 2.0 Ma, the use of artifacts for tasks other than faunal ...
Aiello, Alyssa N. Crittenden, Antón, Bamforth, Behrensmeyer, Blumenschine, Borel, Braun, Braun, Braun, Braun, Braun, Bunn, Bunn, Bunn, Carvalho, Carvalho, Cerling, Claud, Clemente Conte, Copeland, Cristina Lemorini, Crittenden, David R. Braun, Davidson, de Heinzelin, de la Torre, Deacon, Delagnes, Dominy, Dominy, Domínguez-Rodrigo, Domínguez-Rodrigo, Evans, Evans, Ferraro, Flenniken, Frank W. Marlowe, Fritz Hertel, Fullagar, Gassin, Gaulin, Goldman-Neuman, Goldman-Neuman, Harmand, Hernandez-Aguilar, Hladik, Howard, Huddleston, Igreja, Isaac, James S. Oliver, Kaplan, Keeley, Keeley, Knutsson, Knutsson, Laden, Laura C. Bishop, Le Bas, Lee, Lee-Thorp, Lee-Thorp, Lemorini, Lemorini, Levi-Sala, Margaret J. Schoeninger, Marlowe, McBrearty, McGrew, Mercader, Milton, Márquez, Newcomer, O'Connell, Odell, Olausson, Oliver, Ollé, Panger, Pant, Pante, Parkinson, Peter W. Ditchfield, Peters, Peters, Peters, Peters, Pignat, Plisson, Plummer, Plummer, Plummer, Plummer, Potts, Pruetz, Richard Potts, Roche, Rodman, Rogers, Rots, Saggerson, Sahnouni, Schick, Schick, Schoeninger, Schuppli, Semaw, Semenov, Sept, Sept, Shea, Shea, Sponheimer, Stahl, Stapert, Stemp, Stemp, Stemp, Stevens, Sussman, Sussman, Swedell, Thomas W. Plummer, Toth, Tringham, Ungar, Unrath, van der Merwe, van Gijn, Vincent, Whiten, Wrangham, Wrangham, Wrangham, Yamagiwa   +135 more
core   +1 more source

Scales of Analysis: the Usage of Appropriate Magnification in Use-Wear Studies

Arheologia, 2022
The interpretative potential of microscopic use-wear polishes is a factor of the scale of analysis. Observational surface area decreases in inverse proportion to magnification. In this paper I present the results of polishes on bone tools that have developed from fricative contact with nine different materials.
openaire   +2 more sources

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Function and behaviour: use-wear evidence from Upper Paleolithic tools in southern Shanxi Province, North China

Documenta Praehistorica, 2016
Lithic use-wear analysis has become a principal approach for interpreting the function of stone tools and inferring human behaviour. This study presents the results of use-wear analysis on lithic tools excavated from the Upper Paleolithic sites of ...
Hong Chen, Yiren Wang, Chun Chen
doaj   +1 more source