نتایج جستجو برای: stainless steel crown

تعداد نتایج: 101781  

2017
Francois-Marie Allioux Brendan J. Holland Lingxue Kong Ludovic F. Dumée

Citation: Allioux F-M, Holland BJ, Kong L and Dumée LF (2017) Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes. Front. Mater. 4:22. doi: 10.3389/fmats.2017.00022 electro-catalytic Biodiesel Production from canola Oil in Methanolic and ethanolic solutions with low-cost stain...

Journal: :Small 2011
Hemtej Gullapalli Arava Leela Mohana Reddy Stephen Kilpatrick Madan Dubey Pulickel M Ajayan

A modified version of the carburization process, a widely established technique used in the steel industry for case hardening of components, is used for the growth of graphene on stainless steel. Controlled growth of high-quality single- and few-layered graphene on stainless steel (SS) foils through a liquid-phase chemical vapor deposition (CVD) technique is reported. Reversible Li intercalatio...

Journal: :Pediatric dentistry 2005
Esti Davidovich Dan Eimerl Memet Aker Joseph Shapira Benjamin Peretz

Dyskeratosis congenita (DKC) is a rare syndrome characterized by cutaneous hyperpigmentation, nail dystrophy, leukoplakia, and pancytopenia. The purpose of this case study was to describe the management of a 7-year-old girl diagnosed with DKC who urgently needed dental treatment under general anesthesia before bone marrow transplantation (BMT). The patient presented normal skin, nails, and hair...

Journal: :international journal of advanced design and manufacturing technology 0
mohamadhosein mirghasemi mohamadreza salmani

in recent years, more attention is paid to stainless steel 316l as fracture plate and fixation in human's body. present studies are focused on surface and metallurgical properties of this material. biocompatibelity of this material and its superior mechanical properties has made it the most demanded biomaterial. in this research, four different implants are investigated in three stages. four co...

Journal: :Occupational and environmental medicine 1996
T E Danielsen S Langård A Andersen

OBJECTIVES The cancer incidence among 2957 boiler welders was investigated. The subjects were registered electrical welders from 1942 to 1981. A subcohort of 606 stainless steel welders was studied separately. METHODS The investigation was a historical prospective cohort study based on a national registry. The loss of follow up was 4.9%. RESULTS There were 625 deaths (659 expected). There w...

Journal: :European journal of orthodontics 1999
A Johal C R Harper M Sherriff

The aim of the present study was to utilize a strain gauge, which enabled the force applied to produce firmly attached crimpable hooks to rectangular stainless steel arch wires, to be measured. In vitro testing of two hooks, American Orthodontic (AO) and TP Orthodontic (TP), and two dimensions of stainless steel archwire, 0.019 x 0.025 and 0.018 x 0.025-inch, was carried out using an Instron Un...

Journal: :Journal of functional biomaterials 2015
Yan Zhou Luke A Perkins Guodong Wang Dongsheng Zhou Hong Liang

Internal fixations provide fast healing but their failure remains problematic to patients. Here, we report an experimental study in failure of three typical cases of metals: a bent intramedullary stainless steel nail, a broken exterior pure Ti plate, and a broken intramedullary stainless steel nail. Characterization of the bent nail indicates that those metals are vulnerable to corrosion with t...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2008
Lorenzo Franchi Tiziano Baccetti Matteo Camporesi Ersilia Barbato

INTRODUCTION The aim of this study was to evaluate the frictional forces generated by 4 types of passive stainless steel self-ligating brackets (SLBs) and by nonconventional elastomeric ligatures (NCEL) and conventional elastomeric ligatures (CEL) during sliding mechanics. METHODS An experimental model consisting of 5 aligned stainless steel 0.022-in brackets was used to assess frictional for...

2006

choice for pharmaceutical industry process systems. Its high mechanical strength and low coefficient of thermal expansion allow components to be sterilised or sanitised using various mediums and at high temperatures. Concerns about stainless steel systems – such as rouging in high purity water, metallic ion contamination and inner surface finishes – which require post-installation maintenance a...

Journal: :iranian endodontic journal 0
nahid mohammadzade akhlaghi department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran nasrin roghanizad department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran zohreh khalilak department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran neda rezaie general practitioner, tehran, iran

introduction: the purpose of this study was to compare first accessory gutta-percha penetration after the use of nickel-titanium (ni-ti) or stainless-steel spreaders in curved resin blocks. materials and methods: forty resin blocks with 30º and 45º curvatures (20 blocks for each) were prepared and #30 master cones were placed in canals. in part one, under 20 newton pressure, ni-ti or stainless-...

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