Planning greenway along the abandoned railway in Gwangju City, Korea: key components to successful greenway plan

The term greenway in Korea can identify in the word "green" a network only for pedestrians and non-motorized vehicles mobility. The attention should be focused on the possibility of using greenways as a part of a "slow" mobility plan. The greenway of Gwangju can be seen an example of an important change in the Korean urban and transport planning that can use networks for "slow" mobility as one of the most important element for a higher quality level of life. With these considerations in mind this study deals with planning greenways along abandoned rail lines for sustainable community in Gwangju city, Korea. This is aimed at suggesting policy strategies and future directions for constructing greenways along abandoned rail lines of 11km in Gwangju city, Korea. This paper consists of three main sections: concepts of greenways; rail system and transport problems in Gwangju; strategies and directions for constructing greenways in Gwangju. This paper is mainly based on a review of current research reports/papers and an analysis of secondary data.

Unconventional electronic Raman spectra of borocarbide superconductors

Borocarbide superconductors, which are thought to be conventional BCS-type superconductors, are not so conventional in several electronic Raman properties. Anisotropic gap-like features and finite scattering strength below the gap were observed for the $R$Ni$_2$B$_2$C ($R$ = Lu, Y) systems in our previous study. The effects of Co-doping on the 2$\Delta$ gap-like features and the finite scattering strength below and above the gap are studied in $R$ = Lu (B = B$^{11}$) system. In superconducting states, Co-doping strongly suppresses the 2$\Delta$ peak in both B$_{2g}$ and B$_{1g}$ symmetries. Raman cross-section calculation which includes inelastic scattering shows a relatively good fit to the features above the 2$\Delta$ peak, while it does not fully account for the features below the peak.Comment: 2 pages, 1 figur

Fast, Preisach-like characterization of hysteretic systems

Proposed is a substantially simplified, Preisach-like model for characterization of hysteretic systems, in particular magnetic systems. The main idea is to replace a two-dimensional Preisach density with just two real functions, describing in a {\em unique way} the reversible and irreversible processes. As a byproduct of our model we prove, that the major hysteresis loop alone is insufficient to produce the unique Preisach map. Keywords: magnetic hysteresis; magnetization processes; materials testing; modeling.Comment: 7 double spaced pages, 4 figures. Presented at 5th International Symposium on Hysteresis and Micromagnetic Modeling, Budapest, Hungary, May 30th - June 1st, 200

New Two-Dimensional Integrable Quantum Models from SUSY Intertwining

Supersymmetrical intertwining relations of second order in the derivatives are investigated for the case of supercharges with deformed hyperbolic metric $g_{ik}=diag(1,-a^2)$. Several classes of particular solutions of these relations are found. The corresponding Hamiltonians do not allow the conventional separation of variables, but they commute with symmetry operators of fourth order in momenta. For some of these models the specific SUSY procedure of separation of variables is applied.Comment: 18 page

On the symmetry of a Preisach map

At the very heart of the successful phenomenological model of magnetic hysteresis there is the so called Preisach distribution. In the existing literature it is implicitly assumed, that this distribution has a mirror symmetry. We show, by simple and convincing example, that this common assumption is plainly wrong. Dropping it, we gain the ability to model not only the usual hysteresis loops (major and minor) more accurately than ever before, but also those displaying the exchange bias effect, what is impossible within the framework of the symmetrical Preisach model. It is hoped, that our observation paves the way towards the unified description of all the hysteretic systems, including, but not necessarily limited to, superconductors, (multi)layered structures, nanocrystalline materials, patterned media, and - perhaps - the other non-magnetic hysteretic phenomena.Comment: 4 pages, 2 figures. Presented at the European Conference "Physics of Magnetism'05", Poznan (Poland), June 24-27, 2005. Accepted for publication in physica status solidi (b) (C) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinhei