We detect correlations between the temperature and polarization maps significant at more than 10 standard deviations. The correlations are inconsistent with instrument noise and are significantly larger than the upper limits established for potential systematic errors. Correlations on small an-gualr scales are consistent with the the signal expected from adiabatic initial conditions. We detect ...

With the three-year data, the Wilkinson Microwave Anisotropy Probe (WMAP3) produced a more accurate determination of the electron scattering optical depth, downwarding its value from τ es = 0.17 ± 0.08 obtained with the first-year data (WMAP1) to τ es = 0.09 ± 0.03. As a consequence, the structure formation in the ΛCDM best fit model obtained WMAP3 is delayed relative to that of WMAP1. We show ...

The inhibitive effect of N, N-Dimethylaniline (DMA) as corrosion inhibitor for zinc in 0.1, 0.3 and 0.5 M H2SO4 solutions has been investigated by using weight loss, potentiodynamic polarization electrochemical impedance spectroscopy (EIS) techniques. results obtained reveal that inhibition efficiency (I.E.) increases with increase concentration inhibitors but decreases temperature. As rate dec...

In high bit rate optical fiber communication systems, Polarization mode dispersion (PMD) is one of the main factors to signal distortion and needs to be compensated. PMD monitoring system is the key integral part of an adaptive PMD compensator. The degree of polarization (DOP) ellipsoid obtained by using a polarization scrambler can be used as a feedback signal for automatic PMD compensation. G...

As an origin of degradation of remnant polarization in Pt/BaTiO3/Pt capacitor structure, an interfacial layer formed at the interface of BaTiO3 film and a Pt bottom electrode is considered. BaTiO3 films were deposited on two types of bottom electrodes sLa0.5Sr0.5CoO3 and Ptd by the radio frequency magnetron sputtering method and both capacitors showed a microstructural similarity with strong pr...

in this article, the second quantization method has been used to investigate some thermodynamic properties of spin-polarized metallic nanowire in the presence of magnetic field at zero temperature. we have been observed that in different magnetic field, the equilibrium energy of system increases as the density increases. the spin-polarization parameter corresponding to the equilibrium state of ...

corrodes. The metal with the higher OCP acts as a cathode. On the cathode, reduction takes place. In the case of galvanic corrosion it is termed as depolarization. Electrolyte enables transport of the ions and the conductive connection closes an electric circuit. Electric current flowing between the electrode and the electrolyte causes a shift in the electrode potential. This phenomenon is call...

We study the polarization properties of the prompt emission of gamma-ray bursts produced by fragmented fireballs. Such fireballs, known in the literature under various names, are made by the superposition of many individual blobs, each of which produces a spike in the light curve. The differences between pulses are due both to the intrinsic diversity in the blobs’ properties and to their orieta...

Proton exchange membrane fuel cells (PEMFCs) with a dead-ended anode and cathode can obtain high hydrogen and oxygen utilization by a comparatively simple system. Nevertheless, the accumulation of the water in the anode and cathode channels might cause a local fuel starvation degrading the performance and durability of PEMFCs. In this study, a brand new design for a polymer electrolyte membrane...