352 research outputs found
Transient Monitoring Function based Fault Classifier for Relaying Applications
This paper proposes Transient monitoring function (TMF) based fault classification approach for transmission line protection. The classifier provides accurate results under various system conditions involving fault resistance, inception angle, location and load angle. The transient component during fault is measured by TMF and appropriate logics applied for fault classification. Simulation studies using MATLAB®/SIMULINK™ are carried out for a 400 kV, 50 Hz power system with variable system conditions. Results show that the proposed classifier has high classification accuracy. The method developed has been compared with a fault classification technique based on Discrete Wavelet Transform (DWT). The proposed technique can be implemented for real time protection schemes employing distance relaying
Axiomatic Bargaining Theory on Opportunity Assignments
This paper discusses issues of axiomatic bargaining problems over opportunity assignments. The fair arbitrator uses the principle of "equal opportunity" for all players to make the recommendation on re- source allocations. A framework in such a context is developed and several classical solutions to standard bargaining problems are reformulated and axiomatically characterized. Working Paper 06-4
Characterising competitive equilibrium in terms of opportunity
This paper analyses alternative profiles of opportunity sets for individuals in an exchange economy, without assuming that individuals’ choices reveal coherent preferences. It introduces the concept of a ‘market-clearing single-price regime’, representing a profile of opportunity sets consistent with competitive equilibrium. It also proposes an opportunity-based normative criterion, the Strong Opportunity Criterion, which is analogous with the core in preference-based analysis. It shows that every market-clearing single-price regime satisfies the Strong Opportunity Criterion and that, in the limit as an economy is replicated, only such regimes have this property
Securing Basic Well-being for All
The purpose of this paper is to examine the possibility of a social choice rule to implement a social policy for securing basic well-being for all. The paper introduces a new scheme of social choice, called a social relation function (SRF), which associates a reflexive and transitive binary relation over a set of social policies to each profile of individual well-being appraisals and each profile of group evaluations. As part of the domains of SRFs, the available class of group evaluations is constrained by three conditions. Furthermore, the non-negative response (NR) and the weak Pareto condition (WP) are introduced. NR demands giving priority to group evaluation, while treating the groups as formally equal relative to each other. WP requires treating impartially the well-being appraisals of all individuals. In conclusion, this paper shows that under some reasonable assumptions, there exists an SRF that satisfies NR and WP
Small-scale cosmic ray anisotropy observed by the GRAPES-3 experiment at TeV energies
GRAPES-3 is a mid-altitude (2200 m) and near equatorial (
North) air shower array, overlapping in its field of view for cosmic ray
observations with experiments that are located in Northern and Southern
hemispheres. We analyze a sample of cosmic ray events collected
by the GRAPES-3 experiment between 1 January 2013 and 31 December 2016 with a
median energy of TeV for study of small-scale () angular
scale anisotropies. We observed two structures labeled as A and B, deviate from
the expected isotropic distribution of cosmic rays in a statistically
significant manner. Structure `A' spans to in the
right ascension and to in the declination
coordinate. The relative excess observed in the structure A is at the level of
with a statistical significance of 6.8 standard
deviations. Structure `B' is observed in the right ascension range of
to . The relative excess observed in this region is
at the level of with a statistical significance of
4.7 standard deviations. These structures are consistent with those reported by
Milagro, ARGO-YBJ, and HAWC. These observations could provide a better
understanding of the cosmic ray sources, propagation and the magnetic
structures in our Galaxy
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