In this paper, a concept of contrast of eigenvalues (COE) is introduced to describe the diversity of the eigenvalues of signal covariance matrix. Based on the COE, a novel algorithm is proposed to estimate the central direction of arrival (DOA) and the angular spread of an incoherently distributed (ID) source. Using the proposed method, it is shown that the parameters of not only the narrowly b...

Service Oriented Architecture (SOA) has been proposed as model for distributed software development that surpasses the traditional Distributed Object Architecture (DOA) practices in many areas. However, no empirical studies have been conducted to verify the claimed benefits. This study is a first attempt at presenting empirical evidence regarding the benefits of SOA. It is a comparison between ...

This paper review and examine how strategic management researchers apply research methods, and what strategies use as part of the research process, to locate, organize, manage, transform, create, communicate and evaluate research tools, data and information resources. It also analyzes recent developments in research methodology to create scientific knowledge in theory building and practice in s...

This paper identifies and examines strategic opportunities and challenges that a newly emerging technology presents to managers. With the recent advent of very powerful tools for implementing business-oriented expert systems, practical managerial applications of automated reasoning techniques are beginning to appear. Senior management should be aware of the strategic implications of this techno...

Service sharing is a prominent operating model to support business. Many large inter-organizational networks have implemented some form of value added integrated services in order to reach efficiency and to reduce costs sustainably. Coupling Service orientation with enterprise architecture paradigm is very important at improving organizational performance through business process optimization. ...

In the United States and around the world, self-directed violence is a serious public health problem. Such violence includes acts of suicidal behavior (fatal and nonfatal attempts), suicidal ideation (thinking about, considering, or planning for suicide), and nonsuicidal, intentional self-harm (behaviors with the intention not to kill oneself, as in self­ mutilation). 2, 3 Fatal and nonfatal su...