نتایج جستجو برای: jet electro polishing

تعداد نتایج: 61497  

2017
Lieh-Dai Yang Kun-Ling Wu Chin-Chang Yeh Hsin-Min Lee

The aim of this paper is to improve the quality of surface roughness of precision molds, which is difficult to control in the traditional polishing technology, and to provide a kind of equipment which is simple and easy to operate in order to obtain a high precision in surface finishing and polishing. The combination of magnetic force polishing and electrophoretic polishing is mainly to combine...

2017
Negin Nasoohi Maryam Hoorizad Seyedeh Farnaz Tabatabaei

Objectives This study aimed to assess the effect of wet and dry finishing and polishing on microhardness and roughness of microhybrid and nanohybrid composites. Materials and Methods Thirty samples were fabricated of each of the Polofil Supra and Aelite Aesthetic All-Purpose Body microhybrid and Grandio and Aelite Aesthetic Enamel nanohybrid composite resins. Each group (n=30) was divided int...

Journal: :Dental materials journal 2004
Takahiro Ono Kaori Ishikawa Osamu Yamaba Takashi Nokubi

The centrifugal shooting type polishing machine is a recently developed apparatus that seeks to improve the efficiency and environment of polishing removable prostheses. In an attempt to optimize the effectiveness of this apparatus, this study examined the influence of the shooting angle of polishing particle on the surface roughness of cobalt-chromium alloy casting specimens. Polishing was per...

2004
L. Yin H. Huang W. K. Chen Z. Xiong Y. C. Liu

This study reports the development of high efficiency polishing protocols of fibre connectors, by replacing the presents three step polishing with two step polishing protocols, and by using various abrasives as polishing mediums, to achieve necessary geometrical and optical qualities for physical contact transmission using a commercially available connector polisher. The study focuses on surfac...

Journal: :The Review of scientific instruments 2011
Y K Cheong K S Lim W H Lim W Y Chong R Zakaria H Ahmad

Tapered fibre tips fabricated using mechanical polishing method is studied. The fibre tips are formed by sequential polishing flat-ended single mode fibres with decreasing aluminium oxide polishing film grit size. Based on the proposed technique, tapered fibre tips with cone angle ranging from 30° to 130° are fabricated by controlling the polishing angle. Besides the variety of cone angle, cons...

Journal: :Applied optics 1995
M J Cumbo D Fairhurst S D Jacobs B E Puchebner

The particle size distribution of aqueous metal-oxide slurries can evolve during the polishing of optical glass in response to changes in mechanical and chemical process factors. The size-evolution phenomenon and its consequences were systematically studied in a planar continuous-polishing process. The concurrent application of electrokinetic techniques to characterize common optical shop mater...

حجت الله دانشمند, , محمد ابراهیم زمردیان, , محمد رضا شعار ابوذری, , محمدرعایایی علی آبادی, , نیماقلعه, ,

  We report on an experimental comparison of the characteristics of quark-induced jets based on an analysis of jet events selected from hadronic events at c.m. energy of 60 GeV in e+e- annihilations. The triangle plot shows that the majority are two-jet events. The three-jet events are also present but not as many as two-jet events. The mean transverse momentum is larger for three-jet events th...

2015
R Veena Kumari Hema Nagaraj Kishore Siddaraju Ramya Krishna Poluri

BACKGROUND It is beyond doubt that finishing and polishing of a composite restoration enhance its esthetics and, is also essential for the health of the periodontium. A variety of instruments are commonly used for finishing and polishing tooth-colored restorative materials Thus, it is important to understand which type of surface finishing treatments would significantly affect the staining and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید