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This paper investigates the fundamental free-space antenna translation channel as an important step in understanding and developing the spherical waves as a generic tool for MIMO channel modeling. The model is demonstrated by quantifying the theoretical MIMO capacity associated with antennas exciting high order modes in the Fresnel and Fraunhofer regions.
Logistics is gaining increased attention in companies since interconnectivity is increasing, and the interdependence among actors is enhanced due to challenges organizations are facing today (market changes, novel strategies, and technological improvements). While the logistics discipline has been characterized by an efficiency focus based on positivistic assumptions, the challenges of today requi
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Environmental protection has become high in the policy agenda of East Asian countries by the end of the last century due to both internal and external stimuli. One of the main environmental issues is the management of solid waste. The concept of circular economy which encourages reduce, reuse, and recycling, i.e. 3Rs, together with the principle of Extended Producer Responsibility (EPR) has been p
A description of the cultural landscape in the Romele area, southern Sweden, during the Bronze Age and Early Iron Age.
Abstract in Undetermined An alternative to the standard endurance/perdurance accounts of persistence has recently been developed: the stage theory (Sider, 2001; Hawley, 2001). According to this theory, a persisting object is identical with an instantaneous stage (temporal part). On the basis of Leibniz’s Law, I argue that stage theorists either have to deny the alleged identity (i.e. give up their
