نتایج جستجو برای: erosive processes

تعداد نتایج: 532140  

Journal: :Annals of the rheumatic diseases 1989
M Pattrick S Aldridge E Hamilton A Manhire M Doherty

Hand function using a standardised test of activities of daily living was assessed in (a) 57 patients (53 female, four male; mean age 69 years) with established (that is, symptom onset greater than 10 years before) nodal generalised osteoarthritis (NGOA); (b) 10 patients (nine female, one male; mean age 70 years) with established erosive osteoarthritis (EOA); and (c) 52 matched controls (48 fem...

2012
J. C. Caicedo G. Cabrera H. H. Caicedo W. Aperador

Corrosive-erosive effect on AISI D3 steel, 304 stainless steel and CrN/AlN coating in aqueous NaCl slurries was studied. CrN/AlN multilayer films with a thickness of 3 m and bilayer period of = 60 nm (50 bilayers) were obtained by using the physical vapor deposition (PVD) technique (magnetron sputtering). The corrosion-erosion experiments were performed in a test machine in which the impingemen...

Afsaneh Maarefat, Marjan Saeedi, Nastaran Namazy Sima Kavand Soheila Nassiri

A 64-year-old Iranian woman presented with a genital erosive skin lesion that she had noticed from two years ago. On physical examination, a 20 to 25 millimeter purplish lesion was observed on the vulval skin (Figure 1). The indurated lesion showed a small central erosion measuring 3 to 5 mm. Inguinal lymph nodules were not palpable. A skin biopsy specimen was obtained from the eroded les...

Journal: : 2023

The paper presents the results of one stages creating a model assessing and forecasting operating characteristics transonic compressor due to erosive wear. A numerical stage is constructed verified substantiate its applicability in calculating various degrees blade article contains review basic approaches for turbulence simulation, their application area features connected with 3D-flow simulati...

Journal: :Revista de biologia tropical 2010
Matthew J Spanier

Leatherback sea turtles (Dermochelys coriacea) nest on dynamic, erosion-prone beaches. Erosive processes and resulting nest loss have long been presumed to be a hindrance to clutch survival. In order to better understand how leatherbacks cope with unstable nesting beaches, I investigated the role of beach erosion in leatherback nest site selection at Playa Gandoca, Costa Rica. I also examined t...

Journal: :Journal of dentistry 2014
Arzu Aykut-Yetkiner Thomas Attin Annette Wiegand

OBJECTIVE This in vitro study aimed to investigate the preventive effect of brushing with anti-erosive toothpastes compared to a conventional fluoride toothpaste on dentine erosion. MATERIALS AND METHODS Bovine dentine specimens (n=12 per subgroup) were eroded in an artificial mouth (6 days, 6×30 s/day) using either citric acid (pH:2.5) or a hydrochloric acid/pepsin solution (pH:1.6), simulat...

Journal: :Caries research 2010
C Ganss A Lussi N Sommer J Klimek N Schlueter

The aim of this study was to evaluate the anti-erosive effects of different fluoride compounds and one tin compound in the context of the complex pathohistology of dentine erosion, with particular emphasis on the role of the organic portion. Samples were subjected to two experiments including erosive acid attacks (0.05 molar citric acid, pH 2.3; 6 x 2 min/day) and applications (6 x 2 min/day) o...

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