Redox Chemiluminescence and the Problem of Self-supporting Cold Light Sources

By generating the redox species at potentials corresponding to the foot of polarographic waves, the conversion of electrical energy into light at efficiencies greater than 100°/o is shown to be thermodynamically permitted. It is also shown that criteria for this are not met by presently available redox chemiluminescent systems, and the ionquenching efficiency of the electrode is quantitatively evaluated as a function of redox annihilation rate constant, luminescor parent compound concentration, molecular 1size, and applied potential

Redox Chemiluminescence and the Problem of Self-supporting Cold Light Sources

By generating the redox species at potentials corresponding to the foot of polarographic waves, the conversion of electrical energy into light at efficiencies greater than 100°/o is shown to be thermodynamically permitted. It is also shown that criteria for this are not met by presently available redox chemiluminescent systems, and the ionquenching efficiency of the electrode is quantitatively evaluated as a function of redox annihilation rate constant, luminescor parent compound concentration, molecular 1size, and applied potential

Enhancing particle filters using local likelihood sampling

Particle filters provide a means to track the state of an object even when the dynamics and the observations are non-linear/non-Gaussian. However, they can be very inefficient when the observation noise is low as compared to the system noise, as it is often the case in visual tracking applications. In this paper we propose a new two-stage sampling procedure to boost the performance of particle filters under this condition. We provide conditions under which the new procedure is proven to reduce the variance of the weights. Synthetic and real-world visual tracking experiments are used to confirm the validity of the theoretical analysis

A Rewriting-Logic-Based Technique for Modeling Thermal Systems

This paper presents a rewriting-logic-based modeling and analysis technique for physical systems, with focus on thermal systems. The contributions of this paper can be summarized as follows: (i) providing a framework for modeling and executing physical systems, where both the physical components and their physical interactions are treated as first-class citizens; (ii) showing how heat transfer problems in thermal systems can be modeled in Real-Time Maude; (iii) giving the implementation in Real-Time Maude of a basic numerical technique for executing continuous behaviors in object-oriented hybrid systems; and (iv) illustrating these techniques with a set of incremental case studies using realistic physical parameters, with examples of simulation and model checking analyses.Comment: In Proceedings RTRTS 2010, arXiv:1009.398

Epoch Dependent Dark Energy

We present a model in which the equation of state parameter w approaches -1 near a particular value of z, and has significant negative values in a restricted range of z. For example, one can have w ~ -1 near z = 1, and w > -0.2 from z = 0 to z = 0.3, and for z > 9. The ingredients of the model are neutral fermions (which may be neutrinos, neutralinos, etc) which are very weakly coupled to a light scalar field. This model emphasises the importance of the proposed studies of the properties of dark energy into the region z > 1.Comment: 7pp., 2 figs. Invited talk at the 5th Int'l. Wkshp. on the Dark Side of the Universe, 1-5 June 2009 Melbourne, DSU09; to appear in the proceeding