abstract this paper by reviewing the main examples of small to medium-scale retractable roof structures covering building courtyards is to present an innovative rigid retractable roof system employing spatial frames for a courtyard of an existing building in tabriz islamic art university. the courtyard is currently used for temporary exhibitions and gatherings whenever permitted by environmenta...

Recent developments in the area of smart structures indicate that variable geometry / stiffness truss network is of fundamental importance in designing smart transformable structures and systems for space applications. This paper presents the conceptual design and dynamic modeling of a cooperative re-configurabel dual-arm robotic structure called Dual-Arm Cam-Lock Manipulator. The Manipulator i...

To represent real m-dimensional vectors, a positional vector system given by non-singular matrix M ∈ ℤm×m and digit set Ɗ ⊂ ℤm is used. If m = 1, the coincides with well known numeration used to numbers. We study some properties of systems which are transformable from case 1 higher dimensions. focus on an algorithm for parallel addition allowing eventually periodic representation vectors ration...

concepts On top of this first layer of representation, we build up a hierarchy of concepts that represent the structural part of the programmer's expertise. As will be explained later, the concepts introduced here are used to define transformations. We divide these concepts into three categories: Abstract concepts built from fundamental concepts. These include partial descriptions of sounds, su...