Results 41 to 50 of about 8,537 (291)
The evolution of pebble size and shape in space and time
, 2012 We propose a mathematical model which suggests that the two main geological observations about shingle beaches, i.e. the emergence of predominant pebble size ratios and strong segregation by size are interrelated. Our model is a based on a system of ODEs
Bird E. C. F. +7 more
core +1 more source
Testing of Concrete Abrasion Resistance in Hydraulic Structures on the Lower Sava River [PDF]
, 2012 The paper deals with the issues of resistance of concrete linings to long-term abrasion loading caused by waterborne particles, particularly for the proposed hydro power plants on the Sava River in Slovenia.
Kralj, Miha +5 more
core +2 more sources
Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger +2 more
wiley +1 more source
Assessment in vitro of brushing on dental surface roughness alteration by laser interferometry
Brazilian Oral Research, 2008 Noncarious cervical lesions (NCCLs) are considered to be of multifactorial origin, normally associated with inadequate brushing. This study assessed the influence in vitro of simulated brushing on NCCL formation. Fifteen human premolars were submitted to
Alessandra Miranda de Azevedo +5 more
doaj +1 more source
Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena +2 more
wiley +1 more source
Advanced Engineering Research, 2010 The results of development and experimental tests of vibrofinishing (abrading) cylindrical details by riding on a flat fluctuating surface are presented.
Nikolay V. MATEGORIN +2 more
doaj
A review on magnetically assisted abrasive finishing and their critical process parameters
Manufacturing Review, 2018 Magnetically assisted abrasive finishing (MAAF) processes are the precision material removal processes that have been applied to a large variety of materials from brittle to ductile and from magnetic to non magnetic.
Kumari Chinu, Chak Sanjay Kumar
doaj +1 more source
Technology and function of grooved abraders in the early Neolithic of northwestern Europe
Journal of Lithic Studies, 2016 Found sporadically in late Palaeolithic and Mesolithic contexts, grooved abraders are among the most common tools found in Linear Pottery and Villeneuve-Saint-Germain settlements in north-western Europe (5,100-4,700 BCE).
Caroline Hamon
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Вестник Донского государственного технического университета, 2018 The results of development and experimental tests of vibrofinishing (abrading) cylindrical details by riding on a flat fluctuating surface are presented.
Nikolay V. MATEGORIN +2 more
doaj