surface finish

نتایج جستجو برای: surface finish

تعداد نتایج: 641156 فیلتر نتایج به سال:

The Surface Finish Evaluation of Concrete Buildings Effected by Ageing

Journal: :Concrete Research and Technology 1998

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Study of abrasive belt life for quality of surface finish.

Journal: :Journal of the Japan Society for Precision Engineering 1987

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اندازه گیری کشش سطحی مایعات یونی بر پایه آمونیوم

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

مریم بهرامی, محمد هادی قطعی,

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

the effect of different polishing methods and storage media on discoloration of resin composites

Journal: :journal of dental biomaterials 0

zahra deljoo shiraz dental school, shiraz university of medical sciences, shiraz, iran maryam sadeghi shiraz dental school, shiraz university of medical sciences, shiraz, iran mohammad reza azar department of endodontics and prevention of oral and dental disease research center, school of dentistry, shiraz university of medical sciences, shiraz, iran rafat bagheri department of dental materials and biomaterials research centre, school of dentistry, shiraz university of medical sciences, shiraz, iran

statement of problem: accumulation of plaque and staining due to a rough surface, and penetration of colourant agents from food and beverages in to the resin composite results in an incomplete polymerization. there is a little information on the effect of finishing and polishing techniques on the discoloration of nanohybrid and microhybrid composites when exposed to staining solutions...

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