Bioactive materials including glass and glass-ceramics are nowadays used as medical implants for orthopedic applications. In this study several samples of glass-ceramics have been prepared using both heat treatment and sol-gel processes. The structure and bioactivity of these samples based on their interaction with simulated body fluid (SBF) have been determined. In-vitor, using the Raman s...

The objective of this work is to predict the temperature of the different types of walls which are Ferro cement wall, reinforced cement concrete (RCC) wall and two types of cavity walls (combined RCC with Ferrocement and combined two Ferro cement walls) with the help of mathematical modeling. The property of low thermal transmission of small air gap between the constituents of combine materials...

The present study is designed to examine preschool children's (4-5 and 6 years old) attitudes toward unstructured materials and to take their divergent ideas about these materials. Paper napkin, a plastic bottle, bottle lid, toilet paper roll, a piece of white string, a plastic spoon and a 10x10x10 cm3 sized box were used as unstructured materials. 126 children (58 female, 68 male) were selecte...

One of the critical barriers in transitioning new materials development into engineering practice is the uncertainty associated with the data that is used in the materials design process. While constitutive modeling strategies still form the foundations for computational materials design, uncertainty and incomplete information still pervade. Often the available data space is limited, and the ch...

T. Abe, Shin-Etsu Handotai S. Broydo, Applied Materials L. DeVito, Analog Devices, Inc. C. Fine, MIT N. Fiore, Walsin-Lihwa Corporation E. Fitzgerald, MIT S. Fuller, Analog Devices, Inc. M. Gentili, Pirelli F. Giacometti, Pirelli G. Grasso, Pirelli J. Haavisto, Draper Labs F. Hakimi, Draper Labs W. Harshbarger, Applied Materials H. Haus, MIT E. Ippen, MIT J. Joannopoulos, MIT C. Joyce, National...

R. Meyer, 2, ∗ Laurent J. Lewis, S. Prakash, and P. Entel Département de physique et Groupe de Recherche en Physique et Technologie des Couches Mince (GCM), Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal (Québec), Canada H3C 3J7 Institut für Physik, Universität Duisburg-Essen, Lotharstraße 1, D-47048 Duisburg, Germany Département de physique et Groupe de Recherche en Physiq...

Rajeev Ahuja use state-of-the-art theoretical methods to tackle complex material science systems at a very hight level of detail.

Surface reproduction was evaluated for epoxy resin and polyether resin dies as well as for gypsum dies by observing the changes in roughness. Significant differences were found by the interaction of the impression and the dies. The resin dies generally showed better results than the gypsum dies when the elastomeric impressions were used. Especially the resin dies were both excellent in surface ...

INTRODUCTION Each of us reacts to the world around and within us by sensing and actuating. When our hand is in contact with a hot object, we sense the heat, our brain sends a command, and our arm muscles actuate our hand away from the object. Similarly, because of internal sensing, we will tend to favor the burned hand until it has healed. As technology progresses, it becomes reasonable to ask,...

While ASTM E119-07a is commonly employed to establish a fire rating for a fire resistive material (FRM)/steel assembly, the test method provides little quantitative information on either the thermophysical or adhesion properties of the FRM, beyond indicating that they are sufficient to achieve the measured rating. As part of the Building and Fire Research Laboratory (BFRL) Structural Performanc...