a modular $k$-coloring, $kge 2,$ of a graph $g$ without isolated vertices is a coloring of the vertices of $g$ with the elements in $mathbb{z}_k$ having the property that for every two adjacent vertices of $g,$ the sums of the colors of the neighbors are different in $mathbb{z}_k.$ the minimum $k$ for which $g$ has a modular $k-$coloring is the modular chromatic number of $g.$ except for some s...

I dedicate this Thesis to my dear family and to all my friends.

The prevalent strategy in the topology optimization phase is to select a subset of members existing in an excessively connected truss, called Ground Structure, such that the overall weight or cost is minimized. Although finding a good topology significantly reduces the overall cost, excessive growth of the size of topology space combined with existence of varied types of design variables challe...

This article introduces our research efforts to build the Essex Rovers’01 robot soccer team participated in the RoboCup-2001 competition. A modular design for implementing a behavior-based hierarchy is introduced, which consists of three modules such as Perception module, Cognition module and Action module. This architecture is used for the team to achieve intelligent actions in real time. The ...

This article presents a methodology for the modular design of redundant manipulators for im proved dynamic performance The modularity is obtained from a special decomposition of the design problem into smaller more manageable subproblems This decomposition corresponds to a division of the redundant mechanism into non redundant macro and mini substructures that will be designed separately The de...

I n order to study the human being locomotion system, a multi-degrees of freedom (DOFs) biped prototype equipped with flexible feet, which is named as ROBIAN, is developed. I n this paper, the conceptual design of the biped prototype R O B I A N is discussed. The features of the R O B I A N are: (a) parallel mechanism at the hip and the ankle, (b) modular design and (c) 1DOF active/passive join...

This study investigates the relationships among product/process modularity, organizational learning practices, and mass customization (MC) capability. Drawing on organizational learning theory, we propose that organizational learning practices help to embed the knowledge gained from modular design practices into organizational processes, enhancing MC capability. We empirically test the mediatin...

Modular design practices provide a lens on the link among product architecture, imitation, and the dynamic capabilities that sustain long-term performance. Looking at closed product systems, we propose that simplified links between design and performance outcomes in modular environments facilitate imitation. The same reduction in complexity drives development of dynamic capabilities. These take...