Scintillating crystal detector offers potential advantages in low-energy low-background experiments for particle physics and astrophysics. The GSO crystal is an interesting detector to explore for future neutrino physics experiments. The contributions to background due to the various channels of intrinsic radio-isotopes from the 232 Th and 238 U series are identified and studied with time-corre...

In our earlier work, we present a novel formal method for the semiautomatic verification of specifications and for describing web service composition components by using abstract concepts. After verification, the instantiations of components were selected to satisfy the complex service performance constraints. However, selecting an optimal instantiation, which comprises different candidate serv...

E6 grand unification combines the Standard Model matter and Higgs states in the single 27 representation. I discuss how the E6 structure underlies the quasi–realistic free fermion heterotic–string models. E6 → SO(10) × U(1) breaking is obtained by a GSO phase in the N = 1 partition function. The equivalence of this symmetry breaking phase with a particular choice of a boundary condition basis v...

I demonstrate the existence of quasi–realistic heterotic–string models in which all the untwisted Kähler and complex structure moduli are projected out by the generalized GSO projections. I discuss the conditions and characteristics of the models that produce this result. The existence of such models offers a novel perspective on the realization of extra dimensions in string theory. In this vie...

Free fermionic models and symmetric heterotic toroidal orbifolds both constitute exact backgrounds that can be used effectively for phenomenological explorations within string theory. Even though it is widely believed that for Z2 × Z2 orbifolds the two descriptions should be equivalent, a detailed dictionary between both formulations is still lacking. This paper aims to fill this gap: we give a...

Dielectric spectroscopy studies of aqueous ionic solutions ACl/H, 0 (A = Li, Rb, Cs) were carried out at frequencies between 45 MHz and 20 GHz, using recently developed coaxial measurement techniques. The behavior of the static dielectric constant es0 and the dielectric relaxation time Q-, of the solutions were studied as functions of ion size and concentration. For moderate concentrations both...

Neveu-Schwarz-Ramond type heterotic and type-II superstrings in four dimensional curved space-time are constructed as exact N = 1 superconformal theories. The tachyon is eliminated with a GSO projection. The theory is based on the N=1 superconformal gauged WZW model for the anti-de Sitter coset SO(3, 2)/SO(3, 1) with integer central extension k = 5. The model has dynamical duality properties in...

Wireless sensors and actuator networks (WSNs) are the physical layer implementation used for many smart applications in this decade form of Internet Things (IoT) cyber-physical systems (CPS). Even though research concerns WSNs have been answered, evolution WSN into an IoT network has exposed it to new technical issues, including data security, multi-sensory multi-communication capabilities, ene...

Power system transient stability analysis requires an appropriate integration time step to avoid numerical instability as well as to reduce computational demands. For fast system dynamics, which vary more rapidly than what the time step covers, a fraction of the time step, called a subinterval, is used. However, the optimal value of this subinterval is not easily determined because the analysis...

We study the condensation of localized closed string tachyons in C/ZN nonsupersymmetric noncompact orbifold singularities via renormalization group flows that preserve supersymmetry in the worldsheet conformal field theory and their interrelations with the toric geometry of these orbifolds. We show that for worldsheet supersymmetric tachyons, the endpoint of tachyon condensation generically inc...