نتایج جستجو برای: graded coating

تعداد نتایج: 67097  

Journal: :Journal of the Korean Mathematical Society 2011

Journal: :international journal of iron & steel society of iran 2015
a. sanati k. raeissi h. edris

in the present study, the effects of growth defects and chromium content loss on the degradation of corrosion andpassivation of cathodic arc evaporation (cae-pvd) of stainless steel coating were investigated in 2 m sulphuricacid solution. eds analysis indicated that the micro-particles were obtained during the coating growth. in addition,it was detected that the growth defects had poor adhesion...

Journal: :International Journal of Mathematics and Mathematical Sciences 2003

Journal: :Mathematische Zeitschrift 2021

In this paper we study graded Bourbaki ideals. It is a well-known fact that for torsionfree modules over Noetherian normal domains, sequences exist. We give criteria in terms of certain attached matrices homomorphism to induce sequence. Special attention given sequences. the second part paper, apply these results Koszul cycles residue class field and determine particular ideals explicitly. also...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
مریم معزی زاده maryam moezzyzadeh dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. هانیه نوجه دهیان hanieh nojehdehyan dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی. هاله ولی زاده حقی haleh valizadeh haghi dental school, shahid beheshti university of medical sciences, tehramn- iran.دانشکده دندانپزشکی، دانشگاه علوم پزشکی شهید بهشتی.

objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...

Ramazan Ekmekci Rza Erturk

Graded ditopological texture spaces have been presented and discussed in categorical aspects by Lawrence M. Brown and Alexander {v S}ostak in cite{BS}. In this paper, the authors generalize the structure of diuniformity in ditopological texture spaces defined in cite{OB} to the graded ditopological texture spaces and investigate graded ditopologies generated by graded diuniformities. The autors...

Journal: :npj clean water 2023

Abstract In this study, an electrohydrodynamic atomization or electrospraying technique is used for the uniform deposition of carbon nanotubes (CNT) on a commercially available PTFE membrane and employed Membrane Distillation (MD) process. Modified PTFE-CNT was characterized water contact angle, liquid entry pressure (LEP), pore size distribution, surface morphology. The electrospray coating CN...

Journal: :Journal of vacuum science & technology 2023

In order to improve various properties of medical titanium alloys, Ti–3Zr–2Sn–3Mo–25Nb alloy specimens were subjected microarc oxidation (BMAO) in 0.1 mol/l sodium tetraborate electrolyte cover the substrate with a micro-nano double-graded structured coating. The effect time on microstructure, physical phase, hardness, corrosion resistance, and wettability film layer was investigated. results s...

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