The related issue of the flow of energy in such circuits as described by the Poynting vector is considered in [1]. Supposing the distance d between the centers of the two coils is small compared to the wavelength λ = 2πc/ω, where c is the speed of light in vacuum, circuit analysis is a good approximation. Writing the self inductance of the two coils as Lp = Ls = L and their mutual inductance as...

Wireless Power Transmission (WPT) has been an ongoing research area since 1873 when James Maxwell first theorized transferring power could be achieved through electromagnetic radiation. While microwave systems were first to be developed, in recent years the viability and demand for optical systems has grown significantly. In the space elevator contest sponsored by NASA in 2009, LaserMotive succ...

This paper addresses three questions that are relevant to integrating different regional transmission areas. Market integration normally increases the number of competitors and should therefore reduce prices but the first section shows that prices could rise when the number of generators initially increases. Regulatory effort will also be affected by market integration. If the number of generat...

This paper presents a trade-off design and optimization of a class of wireless carrier-sense multiple access protocols where collision-free transmissions are assisted by the potential cooperative retransmissions of inactive terminals with a correct copy of the original transmission. Terminals are enabled with a decode-and-forward relaying protocol. The analysis is focused on asymmetrical settin...

This paper proposes an algorithm for transmission cost allocation (TCA) in a large power system based on nodal pricing approach using the multi-area scheme. The nodal pricing approach is introduced to allocate the transmission costs by the control of nodal prices in a single area network. As the number of equations is dependent on the number of buses and generators, this method will be very ti...

A power law (PL) is the form taken by a large number of surprising empirical regularities in economics and finance. This review surveys well-documented empirical PLs regarding income and wealth, the size of cities and firms, stock market returns, trading volume, international trade, and executive pay. It reviews detailindependent theoretical motivations that make sharp predictions concerning th...

P aul Samuelson (1969) was once asked by a physicist for a law in economics that was both nontrivial and true. This is a difficult challenge, as many (roughly) true results are in the end rather trivial (for example, demand curves slope down), while many nontrivial results in economics in fact require too much sophistication and rationality on the part of the agents to actually hold true in pra...