Nowadays, noise generated by devices is a serious issue in industry and everyday life, because it may cause health damage to humans. In this research, cubic rigid device casing built of double-panel thin steel walls employed reduce emitted from an enclosed source. Double-panel structure used good sound insulation provides. There exist three main groups reduction methods, i.e. passive, semi-acti...

Sustainability, being the urgent issue of our time, is closely related with the innovations in technology. Nanotechnology (NT), although not a new science, can be regarded relatively a new science for buildings with brand new materials and applications. This paper tends to give a research review of current and near future applications of nanotechnology (NT) for achieving high-performance and he...

The objective of this research project is to examine the use of FRP materials for bridge construction. In particular, this project utilizes glass FRP (GFRP) honeycomb sandwich panels. The installation of three bridges, one comprised solely of the FRP panels and two comprised of the FRP panels supported by steel girders, is outlined. Furthermore, results of preliminary testing conducted on the F...

Metallic shear panel dampers (SPDs) have been widely adopted in seismic engineering. In this study, axial and torsional specimens of four types of metallic damping materials, including three conventional metallic steels as well as low yield strength steel 160 (LYS160), were tested in order to investigate the material response under repeated large plastic strain and low cycle fatigue between 10 ...

The Centre for Sustainable Energy Systems at the Australian National University is working on the development of low cost durable mirrors for large paraboloidal dish concentrators and for smaller trough concentrators photovoltaic systems. Both concepts utilize a robust Glass on Metal Laminate (GOML) technology for the mirror surface. The dish mirror panels use the GOML material in a sandwich co...

The structural behavior fire-resistant steel is essential; fire-resistant steel is proven to have higher strength at elevated temperature than that of conventional steel. Also, the requirement of fire protection in the fire-resisting steel can be relaxed as compared with conventional steel structures. However, the design criteria for the application of the fire-resisting steel in steel columns ...

The microstructure of steel is decisive for its chemical, physical and mechanical properties. Depending on the parameters characterising liquid metal as well as the parameters of the steel casting influencing the crystallisation process, the macrostructure of casts and ingots consist of three, two or only one crystallisation zone. In steel ingots, its most frequent by consist of three zones: ch...

Product designers must continually assess trade-offs among various performance attributes and cost. Materials choice can play an important role in that decision-making process. Materials affect many aspects of a product and firm—architecture, manufacture, and product performance. This paper examines the interrelationship of these early stage design choices through the application of process-bas...

OBJECTIVE To evaluate the quantitative effects on torque expression of varying the slot size of stainless steel orthodontic brackets and the dimension of stainless steel wire, and to analyze the limitations of the experimental methods used. MATERIALS AND METHODS In vitro studies measuring torque expression in conventional and self-ligating stainless steel brackets with a torque-measuring devi...

This study focused on the evaluation of the machinability of different carburising steel grades by using a cemented carbide cutting tool during semi finishing of steel. The effect of the steel composition, microstructure and inclusion characteristics on the cutting tool wear in the soft part turning was evaluated for a reference steel R (0.028% S, 0.0009% O), a clean C steel (0.003% S, 0.0005% ...