منابع مشابه
The use of nanotechnology in preventing corrosion of metal pipe and equipment of Shahid Abbaspour Dam
In this work, a research carried out on a project by Shahid Abbaspour dam in Khuzestan province, was used to improve the epoxy paint used in staining the dam. Nanoparticles of titanium oxide contaminated with tin and then polymerized with polypyrrole were added to the paint used in the dam with various weight percentages of 0.1 to 1% by weight, and it was observed that if 0.5% of nanoparticles ...
متن کاملEquipment repaired is equipment gained
According to WHO, at any one time, around 50 per cent of medical equipment in lowand middle-income countries cannot be used because of lack of maintenance or spare parts.1 We have found that unwillingness or inability to repair equipment and put it back in use is also a major cause. New equipment is made available by different international non-government organisations (INGOs) competing with on...
متن کاملA fuzzy model for evaluating metal detection equipment at airport security screening checkpoints
Every passenger who travels by air is exposed to security screening. As part of this procedure, the passenger typically is screened by a walk-through metal detector. Such a device should effectively detect prohibited metal items while simultaneously ensuring adequate throughput at the security screening checkpoint. Therefore, it is necessary to evaluate both these factors when selecting an appr...
متن کاملResearch on Deformations Which Appear in within the Metal Structures of Mining Equipment
G. Paraschiv, Department of Biotechnical Systems, Biotechnical Systems Engineering Faculty, Polytehnic University of Bucharest, Romania D. Dobrotă, Department of Engineering and Management of Technological Systems, Engineering Faculty, University “Constantin Brâncuşi” Târgu-Jiu, Romania Metal structures of the mining equipment are made of a steel with good weldability and mechanical characteris...
متن کاملvanA in Enterococcus faecium, Enterococcus faecalis, and Enterococcus casseliflavus detected in French cattle.
The goal of this study was to assess the presence of enterococci species presenting van-mediated glycopeptide resistance in French cattle. Fecal samples were collected from healthy and sick animals, and enterococci were screened for vancomycin resistance. Vancomycin resistance was principally encountered in Enterococcus gallinarum and Enterococcus casseliflavus strains. However, glycopeptide re...
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ژورنال
عنوان ژورنال: Nature Chemical Biology
سال: 2018
ISSN: 1552-4450,1552-4469
DOI: 10.1038/s41589-018-0173-6