Nanocrystalline superconducting γ-Mo2N phase is prepared by a chemical route, which crystallises in cubic structure with the space group, Pm3m. The crystallite size is found to be 18 nm. It shows the superconducting to normal transition temperature at 3.8 K. The resistivity behaviour is investigated to understand the effects of disorder and non-stoichiometry. At lower temperature, it shows the resistivity minimum at 30 K, which is interpreted by the electron-electron interaction effect attributed to disorder. At higher temperature, a broad maximum in resistivity curve in the temperature range 265-275 K is found.
- Inderscience Publishers
- Electron-electron interaction effect and resistivity maximum in ...
A history of chemically resistant membranes
The use of polymeric membranes for filtration of non-aqueous solutions started around 1960 and has been developed significantly since then . Today, non-aqueous membrane filtration applications in chemical and pharmaceutical processing account for more than 25% of the global total polymeric membrane market .To put into perspective the potential significance of membrane filtration for non-aqueous solutions, one must realize that conventional separation processes still accounts for up to 70% of capital (CAPEX)...
Towards a research agenda for water, sanitation and antimicrobial resistance
Clinically relevant antimicrobial resistant bacteria, genetic resistance elements, and antibiotic residues (so-called AMR) from human and animal waste are abundantly present in environmental samples. This presence could lead to human exposure to AMR. In 2015, the World Health Organization (WHO) developed a Global Action Plan for Antimicrobial Resistance with one of its strategic objectives being to strengthen knowledge through surveillance and research. With respect to a strategic research agenda on water,...
Advantages of Corrosion Resistant Lighting in Offshore Helidecks
Advantages of Corrosion Resistant Lighting in Offshore Helidecks Corrosion resistant lighting must be installed in offshore helidecks due to the extreme nature of the hazardous location. The use of such luminaries can extend the lifespan of the location’s lighting system and provide safety for aircraft pilots and workers on the site. Read on to understand the benefits of corrosion resistant lighting, and specific requirements for offshore helideck fixtures. Corrosion Resistant Lighting Properties E...
Mapping exploitable gravel layers with Electrical Resistivity Tomography
Geoelectrical measurements in a gravel pit were used to map exploitable gravel layers, to estimate their thickness and measure the overburden. 9 profiles with a length between 235 and 715m have been measured. The maximum penetration depth was about 45m. Visualizations on maps and in 3D fence diagrams show the distribution of the mineable gravel layers and simplify the planning of the excavations. Visualizations on maps and in 3D fence diagrams show the distribution of the mineable gravel layers and simplify...
Survival of antibacterial resistance microbes in hospital-generated recycled wastewater
Hospital wastewater has the potential to be a threat to the hospital environment as it can contain pathogenic bacteria that may facilitate the resistant nature of organisms within effluent or water treatment plants. The recycling of hospital wastewater should have good quality. This study was carried out to highlight the incidence of antibiotic resistant bacteria in hospital-generated recycled water. This study was conducted in a tertiary care teaching hospital during June 2013–June 2014. One hundred and forty...