15,913 research outputs found
Two dimensional representation of the Dirac equation in Non associative algebra
In this note a simple extension of the complex algebra to higher dimension is
proposed. Using the postulated algebra a two dimensional Dirac equation is
formulated and its solution is calculated. It is found that there is a
sub-algebra where the associative nature can be recovered
Complexity Factor For Anisotropic Source in Non-minimal Coupling Metric Gravity
In this outline we recognize the idea of complexity factor for static
anisotropic self-gravitating source with generalized metric gravity
theory. In present consideration, we express the Einstein field equations,
hydrostatic equilibrium equation, the mass function and physical behavior of
model by using some observational data of well known compact stars like
and . We define the scalar functions
through the orthogonal splitting of the Reimann-Christofell tensor and then
find the vanishing complexity condition for self-gravitating system with the
help of these scalars. It has been found that the vanishing condition for the
complexity are pressure anisotropy and energy density inhomogeneity must cancel
each other. Moreover, we study the momentous results of an astral object for
the vanishing of complexity factor. Finally, these solutions reduced to
previous investigation about complexity factor in General Relativity by taking
.Comment: 20 pages, 5 Figures, 1 Table, Accepted for Publication in Eur.
Physical Journal
Hybrid Coding Technique for Pulse Detection in an Optical Time Domain Reflectometer
The paper introduces a novel hybrid coding technique for improved pulse detection in an optical time domain reflectometer. The hybrid schemes combines Simplex codes with signal averaging to articulate a very sophisticated coding technique that considerably reduces the processing time to extract specified coding gains in comparison to the existing techniques. The paper quantifies the coding gain of the hybrid scheme mathematically and provide simulative results in direct agreement with the theoretical performance. Furthermore, the hybrid scheme has been tested on our self-developed OTDR
Epistemologi Santai: Epistemologi Jepang Masa Tokugawa
Pengetahuan merupakan kebutuhan kodrati manusia
Decentralized Greedy-Based Algorithm for Smart Energy Management in Plug-in Electric Vehicle Energy Distribution Systems
Variations in electricity tariffs arising due to stochastic demand loads on the power grids have stimulated research in finding optimal charging/discharging scheduling solutions for electric vehicles (EVs). Most of the current EV scheduling solutions are either centralized, which suffer from low reliability and high complexity, while existing decentralized solutions do not facilitate the efficient scheduling of on-move EVs in large-scale networks considering a smart energy distribution system. Motivated by smart cities applications, we consider in this paper the optimal scheduling of EVs in a geographically large-scale smart energy distribution system where EVs have the flexibility of charging/discharging at spatially-deployed smart charging stations (CSs) operated by individual aggregators. In such a scenario, we define the social welfare maximization problem as the total profit of both supply and demand sides in the form of a mixed integer non-linear programming (MINLP) model. Due to the intractability, we then propose an online decentralized algorithm with low complexity which utilizes effective heuristics to forward each EV to the most profitable CS in a smart manner. Results of simulations on the IEEE 37 bus distribution network verify that the proposed algorithm improves the social welfare by about 30% on average with respect to an alternative scheduling strategy under the equal participation of EVs in charging and discharging operations. Considering the best-case performance where only EV profit maximization is concerned, our solution also achieves upto 20% improvement in flatting the final electricity load. Furthermore, the results reveal the existence of an optimal number of CSs and an optimal vehicle-to-grid penetration threshold for which the overall profit can be maximized. Our findings serve as guidelines for V2G system designers in smart city scenarios to plan a cost-effective strategy for large-scale EVs distributed energy management
Seasonal variations of transparency, suspended matter, total residue, fixed total residue and volatile matter in Rosetta branch of the Nile
- …
