نتایج جستجو برای: Erosion

تعداد نتایج: 24106  

Journal: :Zairyo-to-Kankyo 2008
YoshinoriIsomoto,

2001
Scott Perkins,

There is a dental epidemic occurring literally right under our noses in this country that is largely unrecognized or mis-diagnosed. It is unparalleled in the history of man because of a combination of present day factors that have never existed before, and it is causing widespread damage to the dental health of millions of Americans. Furthermore, it is relatively simple to recognize and there a...

Journal: :Journal of Visualization and Computer Animation 2006
Bedrich Benes, Václav Tesínský, Jan Hornys, Sanjiv K. Bhatia,

This paper presents a generalized solution to modelling hydraulic erosion using ideas from fluid mechanics. The model is based on the Navier–Stokes equations, which provide the dynamics of velocity and pressure. These equations form the basis for the model to balance erosion and deposition that determine changes in the layers between water and erosion material. The eroded material is captured a...

2012
Ana Carolina Magalhães, Annette Wiegand, Alix Young, Nadine Schlueter,

1Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, 17012-901 Bauru SP, Brazil 2Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, 8032 Zurich, Switzerland 3Department of Cariology and Gerodontology, Faculty of Dentistry, University of Oslo, 0455 Oslo, Norway 4Department of Conservative and Preventive Dentistry, Dental Clinic...

Journal: :The Iowa Review 1999
SamanthaHunt,

2010

Epidemiology Few epidemiological studies of the prevalence and severity of tooth erosion have yet been performed on a national basis. Studies have focused on small groups of patients, often pre-selected, for example because of symptoms. Thus erosion was seen largely in patients with symptoms of gastric reflux (Gastro-oesophageal reflux disease or GORD) and later was recognised in patients with ...

2009
Shuji Hattori, Makoto Takinami, Tomoaki Otani,

Both cavitation erosion and liquid impingement erosion are phenomena that can cause pipe wall thinning in power plants. The Code for Power Generation Facilities, Rules on Pipe Wall Thinning Management, was published by the JSME (Japan Society of Mechanical Engineers) in 2005. The code says that cavitation erosion shall be prevented either in the design stage or by daily inspection. On the other...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1381

چکیده ندارد.

2017
F. Mercier, S. Bonelli,

This study focuses on the numerical modelling of concentrated leak erosion of a cohesive soil by a turbulent flow in axisymmetrical geometry, with application to the Hole Erosion Test (HET). The numerical model is based on adaptive remeshing of the water/soil interface to ensure accurate description of the mechanical phenomena occurring near the soil/water interface. The erosion law governing t...

Journal: :Prosthodontics 2019
SylwiaPrzybyszewska-Pardak, MagdalenaGroch, JolantaLoster, AnetaWieczorek,

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