Inflation from a Supersymmetric Axion Model

We show that a supersymmetric axion model naturally induces a hybrid inflation with the waterfall field identified as a Peccei-Quinn scalar. The Peccei-Quinn scale is predicted to be around 10^{15}GeV for reproducing the large-scale density perturbation of the Universe. After the built-in late-time entropy-production process, the axion becomes a dark matter candidate. Several cosmological implications are discussed.Comment: 5 pages; to appear in PR

Preparation and mechanical properties of machinable alumina/mica composites

ArticleJOURNAL OF THE EUROPEAN CERAMIC SOCIETY. 26(9): 1687 -1693 (2006)journal articl

Low-temperature sintering of Z-type hexagonal ferrite by addition of fluorine containing glass powder

The original publication is available at www.springerlink.com.ArticleJOURNAL OF MATERIALS SCIENCE. 40(1): 165-170 (2005)journal articl

Waste on the roadside, 'poi-sute' waste: Its distribution and elution potential of pollutants into environment

ArticleWASTE MANAGEMENT. 29(3):1192-1197 (2009)journal articl

Out-of-plane dielectric constant and insulator-superconductor transition in Bi_2Sr_2Dy_{1-x}Er_xCu_2O_8 single crystals

The out-of-plane dielectric constant of the parent insulator of the high-temperature superconductor Bi_2Sr_2(Dy,Er)Cu_2O_8 was measured and analysed from 80 to 300 K in the frequency range of 10^6-10^9 Hz. All the samples were found to show a fairly large value of 10-60, implying some kind of charge inhomogeneity in the CuO_2 plane. Considering that the superconducting sample Bi_2Sr_2(Ca,Pr)Cu_2O_8 also shows a similar dielectric constant, the charge inhomogeneity plays an important role in the insulator-superconductor transition.Comment: RevTex4 format, 5 pages, 3 figures, submitted to J. Phys. Condens. Ma

New synthetic method and ionic conductivity of Na-4-mica

ArticleMATERIALS LETTERS. 60(4): 464-466 (2006)journal articl

Effect of layer charge on chemical and physical properties of synthetic K-fluorine micas

The original publication is available at www.springerlink.com.ArticleJOURNAL OF MATERIALS SCIENCE. 40(21): 5597-5602 (2005)journal articl

Preparation of M-0 metal/alumina-pillared mica composites (M = Cu, Ni) by in situ reduction of interlayer M2+ ions of alumina-pillared fluorine micas

ArticleMATERIALS RESEARCH BULLETIN. 42(12): 2143-2149 (2007)journal articl

Crystallization process and some properties of novel transparent machinable calcium-mica glass-ceramics

ArticleCERAMICS INTERNATIONAL. 34(1): 75-79 (2008)journal articl

The Impact of Link Suggestions on User Navigation and User Perception

The study reported in this paper explores the effects of providing web users with link suggestions that are relevant to their tasks. Results indicate that link suggestions were positively received. Furthermore, users perceived sites with link suggestions as more usable and themselves as less disoriented. The average task execution time was significantly lower than in the control condition and users appeared to navigate in a more structured manner. Unexpectedly, men took more advantage from link suggestions than women