نتایج جستجو برای: 201ln stainless steel

تعداد نتایج: 83338  

Journal: :The Journal of bone and joint surgery. British volume 2003
C N Kraft O Diedrich B Burian O Schmitt M A Wimmer

Wear products of metal implants are known to induce biological events which may have profound consequences for the microcirculation of skeletal muscle. Using the skinfold chamber model and intravital microscopy we assessed microcirculatory parameters in skeletal muscle after confrontation with titanium and stainless-steel wear debris, comparing the results with those of bulk materials. Implanta...

Journal: :journal of dentistry, tehran university of medical sciences 0
nahid ramazani assistant professor, children and adolescent health research center, department of pediatric dentistry, faculty of dentistry, zahedan university of medical sciences, zahedan, iran. rahil ahmadi assistant professor, department of pediatric dentistry, faculty of dentistry, shahed university, tehran, iran. mansure darijani dentist, zahedan university of medical sciences, zahedan, iran.

adverse effects of dental materials, especially metals, have been an important issue in recent decades.the purpose of this study was to determine the amount of nickel released from stainless steel crowns in artificial saliva.in this in-vitro study, 270 stainless steel crowns were divided into five groups, each with nine subgroups. each group (i to v) was comprised of four, five, six, seven and ...

Journal: :Medicina oral, patologia oral y cirugia bucal 2010
Shiva Sadeghi Masoomeh Abolghasemi

OBJECTIVES Today many clinicians use both stainless-steel hand K-files and nickel- titanium rotary files during endodontic treatment. It is of great importance for the clinician to have confidence in the accuracy of an apex locator even if these files were used interchangeably. The purpose of this in vitro study was to evaluate the accuracy of the Raypex5 electronic apex locator using stainless...

Journal: :Drug delivery 2015
Dongwei Zhang Chris D Rielly Diganta B Das

Microneedles (MNs) have been shown to enhance the penetration depths of microparticles delivered by gene gun. This study aims to investigate the penetration of model microparticle materials, namely, tungsten (<1 μm diameter) and stainless steel (18 and 30 μm diameters) into a skin mimicking agarose gel to determine the effects of particle characteristics (mainly particle size). A number of expe...

2018
Mustafa Seyhan Olcay Guler Mahir Mahirogullari Ferdi Donmez Arel Gereli Serhat Mutlu

Objectives Intramedullary nailing is the treatment of choice for fractures of the tibial shaft, which might necessitate the nail removal due to complications in the long-term. Although considered as a low-risk procedure, intramedullary nail removal is also associated with certain complications. Here, we compared the most commonly used stainless steel and titanium nails with respect to the compl...

2011

The ferrochrome alloy is produced by electric arc melting of the mineral chromite (FeCr2O4). It is largely used for the production of stainless steels. Increasing the amount of chromium content in the steel allows for increased corrosion and oxidation resistance. Other alloying elements, such as nickel (Ni) or molybdenum (Mo), aid in making the steel more passive and increasing its stainless pr...

Journal: :Environmental science & technology 2009
Douglas F Call Matthew D Merrill Bruce E Logan

Microbial electrolysis cells (MECs) are an efficient technology for generating hydrogen gas from organic matter, but alternatives to precious metals are needed for cathode catalysts. We show here that high surface area stainless steel brush cathodes produce hydrogen at rates and efficiencies similar to those achieved with platinum-catalyzed carbon cloth cathodes in single-chamber MECs. Using a ...

2003
Marko Kolari Mirja Salkinoja-Salonen Peter Neubauer Kaarina Lähteenmäki Ulrich Szewzyk

Front cover: The four images (in clockwise order) illustrate biofilm development on paper machine surfaces. FESEM image of Deinococcus geothermalis cells attached to a stainless steel surface ⇒ FESEM image of interconnected cells of D. geothermalis within a cell cluster ⇒ Stereomicroscope image of biofilm microcolonies ⇒ Photograph of mature biofilms adhering to stainless steel surfaces in the ...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2004
Keun-Taek Oh Young-Sik Kim Yong-Soo Park Kyoung-Nam Kim

Orthodontic stainless-steel appliances are considered to be corrosion resistant, but localized corrosion can occur in the oral cavity. This study was undertaken to evaluate the properties of super stainless steels in orthodontic applications. Accordingly, the metallurgical properties, mechanical properties, corrosion resistance, amount of the released nickel, cytotoxicity, and characteristics o...

In this research, industrial hot deformation processes was simulated for 321 austenitic stainless steel using hot compression test with the aim of acquiring technical knowledge and indigenization of stainless steel production. The obtained stress-strain curves showed the common retrieval dynamic behaviour. By microscopic studies, the main restoration mechanism during hot deformation in this ste...

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