نتایج جستجو برای: composite structure

تعداد نتایج: 1674102  

2013
A. R. Azrin Hani R. Ahmad M. Mariatti

Textile structures are engineered and fabricated to meet worldwide structural applications. Nevertheless, research varying textile structure on natural fibre as composite reinforcement was found to be very limited. Most of the research is focusing on short fibre and random discontinuous orientation of the reinforcement structure. Realizing that natural fibre (NF) composite had been widely devel...

Journal: Journal of Nanoanalysis 2019
Ali Reza Mahjoub Maryam Kargar Razi, Morteza Khosravi Sara Poorarjmand

In this research, preparation of Zn0.95Ni0.04Co0.01O/PANI (polyaniline) (0.5%, 1% and 1.5% PANI) nanocomposites was performed by synthesis of pure polyaniline and adsorption of resulted organic chainson the structure of Zn0.95Ni0.04Co0.01O nano particles. The as-prepared samples was characterized by X-raydiffraction (XRD), fourier transform infrared (FTIR), field emission scan...

Journal: :General dentistry 2003
Denise Estafan Claudine Agosta

Research indicates that microleakage is the major cause of composite restoration failure. Because the different physical properties of composite resin and tooth structure cause microleakage in composite tooth restorations, it is possible to eliminate microleakage by making composite's physical properties more similar to those of tooth structure. This article reviews the physical properties of c...

Journal: :mechanics of advanced composite structures‎ 2014
abbas niknejad iman kharaman-nia

this paper investigates axial compression process of multi-layered tubes with circular cross-section under the axial loading in the quasi-static condition using experimental method. some specimens are prepared in seven different groups, namely; empty carbon/epoxy composite tubes, solid carbon/epoxy composite rods, empty copper tubes, composite tubes with silicon sealant filler, concentrically s...

Journal: :جنگل و فرآورده های چوب 0
علی عبدالخانی دانشیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران ابراهیم حجتی مروست کارشناس ارشد، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران علی نقی کریمی استاد، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران؛ و مؤسسه تحقیقاتی introp، دانشگاه پوترا، پوترا، مالزی سهیلا ایزدیار استادیار، گروه علوم و صنایع چوب و کاغذ، دانشکده منابع طبیعی دانشگاه تهران، کرج، ایران

in this research, cellulose-silk composites production in liquid phase was studied. in this respect,bmimcl ionic liquid was synthesized in the laboratory and was used for dissolution purpose. afterdissolution of the biopolymers and mixing them in the liquid phase, obtained suspension was spread ina petri dish. then, the composite gel was washed with running methanol to remove the il, cellulosea...

Journal: :journal of dental biomaterials 0
maryam sharifi department of paediatric dentistry, school of dentistry, rafsanjan university of medical sciences, rafsanjan, iran somayeh khoramian tusi department of paediatric dentistry, school of dentistry, alborz university of medical sciences, karaj, iran

statement of problem: the bond strength between restorative material and tooth structure is so important for conduction of durable restoration. considering the recent attention to low shrinkage composite resins, evaluation of micro tensile bond strength of these materials would be valuable. objectives: to compare the microtensile bond strength of silorane composite resin (filtek p90) with the c...

2012
Olivier Pantz Karim Trabelsi

In most shape optimization problems, the optimal solution does not belong to the set of genuine shapes but is a composite structure. The homogenization method consists in relaxing the original problem thereby extending the set of admissible structures to composite shapes. From the numerical viewpoint, an important asset of the homogenization method with respect to traditional geometrical optimi...

Journal: :Advances in Science and Technology Research Journal 2022

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2010

Journal: :Transactions of the Architectural Institute of Japan 1957

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