Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53661#.VM8m7CzQrzE Author(s)    Haibo Zhao 1* , Zheng Wang 1 , Xuling Lin 1 , Huan Li 1 , Lei Feng 2 , Yu Zhou 3 Affiliation(s) 1 Beijing Institute of Space Mechanics & Electricity, Beijing, China . 2 Beijing Institute of Spacecraft Environment Engineering, Beijing, China . 3 DFH Satellite Co., Ltd., Beijing, China . ABSTRACT The mechanism and characteristics of spectral polarization imaging technique are presented. The present research and developing trend of spectral polarization remote sensing are introduced. A novel method of spectral polarization imaging technique is discussed, which is based on static intensity modulation adding with double refraction crystal spectrometer. The static intensity modulation consists of two retarders and one polarizer. The double refraction crystal is used to generate interference image. The spectral and four Stokes vectors ...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53409#.VMG14SzQrzE Author(s)    H. Al-Dmour Affiliation(s) Department of Physics, Faculty of Science, Mu'tah University, Mu’tah, Jordan . ABSTRACT We report the effect of ruthenium dye on negative capacitance of nanocrystalline titanium dioxide/poly(3-hexyl thiophene), nc-TiO <span "=""> 2 /P3HT, heterojunction solar cells. It has been found that the low frequency capacitance reaches high positive value and then drop to the negative region. In P3HT/Ru-Dye/nc-TiO 2 solar cells, the negative capacitance is observed under very low forward bias condition unlike the negative capacitance in P3HT/ncTiO 2 solar cells. That is attributed to the difference of the concentration of dipole and presence of depletion region at interface between the P3HT and nc-TiO 2 .   KEYWORDS Admittance Spectroscopy , Negative Capacitance , Forward Bias , P...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51073#.VFMJe2fHRK0 ' Author(s)   Hussam El Desouky 1 , Hisham A. Aboeldahab 1,2* Affiliation(s) 1 Chemistry Department, University of Umm Al-Qura, Makka, KSA . 2 Chemistry Department, Faculty of Science, University of Alexandria, Alexandria, Egypt . ABSTRACT The corrosion behavior of Maraging steel has been studied by using different techniques, including open circuit potential and polarization measurements in addition to microstructure examination such as optical microscopy and XRD (X-Ray Diffraction) investigation. The corrosion behavior of Maraging steel has been examined in sodium chloride solutions with different concentrations from 0.1 M to 2 M. It was found that the corrosion resistance of Maraging steel is inversely proportional with the concentration of sodium chloride solution. The corrosion resistance is directly prop...