Quantum-dot cellular automata (QCA) is a novel and potentially attractive technology for implementing computing architectures at the nano-scale. By applying a set of simple layout rules, arbitrary circuits can be made using QCA cells. In this work, we describe the design and layout of a QCA random access memory (RAM), showing the layout of individual memory cells, as well as, a suggested layout...

Universal Akers Arrays (UAA) allow to realize arbitrary Boolean function directly in cellular layout but are very area-ine cient. This paper presents an extension of UAAs, called \Lattice Diagrams" in which Shannon, Positive and Negative Davio expansions are used in nodes. An e cient method of mappig arbitrary multi-output incompletely speci ed functions to them is presented. We prove that with...

Aerospace industry is a value-added and technology integrated industry. Sheet metal parts are important portion of aerostructures. The sheet metal production line combines five different routing types together. This study tries to make a comparison between job shop layout and cellular layout with lean concept. According to precedence diagram of sheet metal fabrication process, the model and mea...

1 Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. 2 Industrial Engineering Department, College of Engineering, Shahid Bahonar University, Kerman, Iran. 3 Institute of Advanced Technology, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia. 4 Department of Industrial Engineering, Islamic Azad University of Kerma...

Spatial layout design must consider not only ease of movement for pedestrians under normal conditions, but also their safety in panic situations, such as an emergency evacuation in a theatre, stadium or hospital. Using pedestrian simulation statistics, the movement of crowds can be used to study the consequences of different spatial layouts. Previous works either create an optimal spatial arran...