This paper will present an e-procurement model to facilitate online B2B exchanges. Large organizations in Australia and around the world are increasingly implementing e-procurement, which has increased the need for services of intermediaries such as ‘emarkets’ to facilitate the process. However, both being new and unproven require theories and models to support their roles in the online procure...

The Joule–Thomson expansion is studied for Reissner–Nordström-Anti-de Sitter black holes with cloud of strings and quintessence, as well its thermodynamics. cosmological constant treated thermodynamic pressure, whose conjugate variable considered the volume. characteristics are in four main aspects case ω=−1 ω=−23, including coefficient, inversion curves, isenthalpic curves ratio between minimu...

We study the Joule-Thomson expansion in Einstein-Maxwell theory supplemented with so-called quasitopological electromagnetism, this extended phase space thermodynamic approach. compute coefficient and depict all relevant inversion isenthalpic curves temperature-pressure plane, determining manner corresponding cooling heating regions. In contrast previous related works we show existence of three...

Ross, M.B., Ch.B., F.R.C.S.E., Lecturer in Practical Anaesthetics, University of Edinburgh. Hon. Anaesthetist, Edinburgh Dental School. With an Introduction by H. Alexis Thomson, C.M.G., M.D., F.R.C.S.E., and chapters upon Local and Spinal Anaesthesia by W. Quarry Wood, M.D., F.R.C.S.E., and upon Intratracheal Anaesthesia by H. Torrance Thomson, M.D. Second Edition. Pp. 328. Edinburgh : E. & S....

James Thomson envisaged a lamp which would be turned on for 1 minute, off for 1/2 minute, on for 1/4 minute, etc. ad infinitum. He asked whether the lamp would be on or off at the end of 2 minutes. Use of “internal set theory” (a version of nonstandard analysis), developed by Edward Nelson, shows Thomson’s lamp is chimerical; its copy within set theory yields a contradiction. The demonstration ...

We study and discuss the critical behavior of charged by nonlinear electrodynamics (NED) AdS black holes in an extended phase space. The negative cosmological constant is treated as a thermodynamic pressure hole mass considered chemical enthalpy. show analogy thermodynamics transitions studied with Van der Waals liquid-gas system. introduce new quantities conjugated to NED coupling magnetic cha...

We investigate the Joule-Thomson effect of AdS black holes in conformal gravity. derive coefficient terms thermodynamic relations and then make an alternative derivation via a direct way. analyze find that coefficients obtained from two different approaches are equal. Moreover, we present novel isenthalpic process which inversion temperature is minimal it separates corresponding heating-cooling...

Anil Madhavapeddy University of Cambridge 15 JJ Thomson Avenue Cambridge CB3 0FD United Kingdom [email protected] Richard Mortier University of Nottingham, Sir Colin Campbell Building, Nottingham NG7 2TU United Kingdom [email protected] Jon Crowcroft University of Cambridge 15 JJ Thomson Avenue Cambridge CB3 0FD United Kingdom [email protected] Steven Hand University of Cambridge 15 J...