Optimizing the input covariance matrix of a MIMO system with partial channel-structure feedback is an important issue to fully exploit the channel capacity. Efficient design of the optimal input covariance matrix, however, remains unavailable although its eigenvector structure was clearly revealed. In this paper, we obtain an upper bound of the capacity by matrix operation and concavity of the ...

as recent advancements in biology shows, the molecular machines specially proteins, rna and complex molecules play the main role of the so called cell functionality. it means a very big part of the system biology is concerned with the interactions of such molecular components. drug industries and research institutes are trying hard to better understand the concepts underlying these interactions...

The product life-cycle management has been considered from different perspectives, including the Design (or Dependency) Structure Matrix (DSM) approach. In this paper, a matrix decomposition approach is presented as an alternative to the DSM approach. The decomposition approach calls for another representation of the input data (a matrix) referred to in the literature as the Interface Structure...

This paper presents a technique to obtain a Design Structure Matrix (DSM) from a Design Matrix (DM). This technique enables us to obtain the design information flow pattern at early stage of the design, and apply the DSM system analysis and management techniques at the time when the most important decisions about the system and the design are made. The validity of this method is proven using a ...

This paper demonstrates an application of the Design Structure Matrix (DSM) to Integrated Concurrent Engineering (ICE), an approach to conceptual space systems design intended to increase the pace of work by bringing together all relevant personnel in the same room to conduct focused, collaborative one-week design studies. Although the DSM methodology explicitly incorporates the concurrent aspe...

A simple design of one dimensional gradual stacked photonic crystal has been proposed. This structure exhibits a periodic array of alternate layers of Graphene and Silica. These are the materials of low and high refractive indices respectively. Here the structure considered has three stacks .Each stack has five alternate layers of Graphene and silica. The transfer matrix method has been used fo...

Product development processes changes with the changing market trend. Green design and modular design both plays important role for the product development processes. In this research Design Structure Matrix (DSM) approach was used to group different modular parts together to obtain optimized module efficiency. Furthermore, this research proposed the use of DSM to find the result of coupled tas...

The modeling of effective product development process can help manage the overall process efficiently and help organize a multifunctional team to develop products in a concurrent and cooperative manner. In this article, a product development process is viewed as a dynamic system with feedback based on the feedback control theory, and a dynamic system model and its design structure matrix are de...

the method of sampling unit was applied according to the importance of the park in urban landscape structure with the initial purpose of planning method to maximize environmental sustainability and recognizing the structural elements within the park. swot technique has been applied to analyze collected data and evaluate the strengths and weaknesses, opportunities and threats of affected areas. ...