The characterization of microbial assemblages within solid gas hydrate, especially those that may be physiologically active under in situ hydrate conditions, is essential to gain a better understanding of the effects and contributions of microbial activities in Gulf of Mexico (GoM) hydrate ecosystems. In this study, the composition of the Bacteria and Archaea communities was determined by 16S r...

Introduction: The dominant naturally-occurring members of the MgSO4·nH2O series on Earth are epsomite (MgSO4·7H2O), hexahydrite (MgSO4·6H2O), and kieserite (MgSO4·H2O). In addition, other magnesium sulfate hydrates (sanderite 2H2O, starkeyite 4H2O, pentahydrite 5H2O) have been identified as efflorescent salts in limited localities in the United States, Chile, and Germany. Chipera et al., [1,2] ...

mono and bis hexamethylenetetramine iron(iii) chloride, fe(n c ,h ) ci (i) and fe(n c ,h ) cl (ii) were synthesized by the reaction of iron(iii) chloride and hexamethylenetetramine (hmta) in chloroform. chemical analysis and spectral results show the coordination of hmta to the iron(iii). electronic transition spectra of compound i and i1 were also studied in coordinating and noncoordinating so...

Abstract In a freshwater environment, accelerated corrosion of carbon and stainless steels is frequently observed. Here, an immersion study was conducted using nine types in pool for 22 mo. Accelerated observed Cr-containing cast iron, whereas no visible steels, even after Microbial community analysis showed that, general corrosion, Fe(II)-oxidizing bacteria were enriched the early phase, Fe(II...

Iron(II) sulfate-containing lipophilic matrices were developed by a special hot-melt technology (melt solidification in drops), using stearin, white wax and their mixture as conventional bed materials. The special technology resulted in spherical particles which can be filled directly into capsules; these store iron as a depot and ensure a slow and uniform release, whereby the irritation of the...

BACKGROUND AND AIMS Iron deficiency is common in inflammatory bowel disease, yet oral iron therapy may worsen the disease symptoms and increase systemic and local oxidative stress. The aim of this study was to compare the effects of oral ferrous sulfate and iron polymaltose complex on inflammatory and oxidative stress markers in colitic rats. METHODS Animals were divided into four groups with...

Background: For iron therapy in hemodialysis patients, intravenous rather than oral administration is recommended. Methods: For hemodialysis patients with serum ferritin levels less than 200 ng/ml (less than 100 ng/ml: 67 patients, between 100 and 199 ng/ml: 20 patients) with no iron therapy for more than 3 months, iron was administered intravenously (40 mg of ferric oxide saccharate for ten ti...

Natural gas hydrates occur on most continental margins in organic-rich sediments at water depths >450 m (in polar regions >150 m). Gas hydrate distribution and abundance, however, varies significantly from margin to margin and with tectonic environment. The National Gas Hydrate Program (NGHP) Expedition 01 cored 10 sites in the Krishna-Godawari (K-G) basin, located on the southeastern passive m...

Hydrate slurry has been reported to be a suitable secondary fluid for refrigeration and air-conditioning systems. The latent heat of CO2 hydrate is 387 kJ/kg under phase equilibrium condition of 7 °C and 30 bar. The utilization of CO2 hydrate slurry in air-conditioning systems is promising in improving the energy efficiency and shifting energy supply and demand load as well as relieving greenho...