The fluorine abundance of the Carbon-Enhanced Metal-Poor (CEMP) star HE 1305+0132 has been derived by analysis of the molecular HF (1-0) R9 line at 2.3357 μm in a high-resolution (R = 50, 000) spectrum obtained with the Phoenix spectrometer and Gemini-South telescope. Our abundance analysis makes use of a CNO-enhanced ATLAS12 model atmosphere characterized by a metallicity and CNO enhancements ...

in this study, among the 21 diesel-degrading bacteria that were isolated from an oil-polluted area in fars (iran), 6 bacterial strains were tested for their capability to metabolize and grow on diesel oil by degrading its hydrocarbons content. the biochemical characteristics and 16s rrna sequence analysis of diesel-degrading bacteria showed that these strains were related to the genus pseudomon...

NASA developed an Earth Observing System (EOS) to study global change and reduce uncertainties associated with aerosols and other key parameters controlling climate. The first EOS satellite, Terra, was launched in December 1999. The Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS) field campaign was conducted from 10 July to 2 August 2001 to validate several Terra data pro...

Characteristics of biogenic VOC as well as methodology of BVOC emission estimation are presented in this article. Biogenic emissions of VOC were estimated using semi-empirical model proposed by Guenther et al., 1995. Terms of formation, amount, spatial distribution of tropospheric ozone and the contribution of biogenic sources of VOC to ozone precursors were studied using numerical model for su...

This article synthesizes all the results obtained to establish a global corrosion mechanism when Pb–Sn coating deposited on low carbon steel is corroded in an HCl-polluted wet environment. The successive stages of process are shown. In environment, coupled with water, acid chlorides provide aggressive electrolyte particularly favorable corrosion. contact this electrolyte, lead products created ...