48,807 research outputs found
Low scale Seesaw model and Lepton Flavor Violating Rare B Decays
We study lepton flavor number violating rare B decays, , in a seesaw model with low scale singlet Majorana neutrinos
motivated by the resonant leptogenesis scenario. The branching ratios of
inclusive decays with two almost
degenerate singlet neutrinos at TeV scale are investigated in detail. We find
that there exists a class of seesaw model in which the branching fractions of and can be as large as and
within the reach of Super B factories, respectively, without being in
conflict with neutrino mixings and mass squared difference of neutrinos from
neutrino data, invisible decay width of and the present limit of .Comment: 19 pages, 6 figure
Optimization of sensor locations for measurement of flue gas flow in industrial ducts and stacks using neural networks
This paper presents a novel application of neural network modeling in the optimization of sensor locations for the measurement of flue gas flow in industrial ducts and stacks. The proposed neural network model has been validated with an experiment based upon a case-study power plant. The results have shown that the optimized sensor location can be easily determined with this model. The industry can directly benefit from the improvement of measurement accuracy of the flue gas flow in the optimized sensor location and the reduction of manual measurement operation with Pitot tube
Nonlinear gyrokinetic simulation of saturated turbulence produced by fast ion precession driven drift instability in reversed shear plasmas
Experimental evidence of a metal-insulator transition in a half-filled Landau level
We have measured the low-temperature transport properties of a high-mobility
front-gated GaAs/Al_{0.33}Ga_{0.67}As heterostructure. By changing the applied
gate voltage, we can vary the amount of disorder within the system. At a Landau
level filling factor , where the system can be described by the
composite fermion picture, we observe a crossover from metallic to insulating
behaviour as the disorder is increased. Experimental results and theoretical
prediction are compared.Comment: To be published in Solid State Communications. 4 figure
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