نتایج جستجو برای: iron and steel plant
تعداد نتایج: 16941051 فیلتر نتایج به سال:
It is well documented that slag-based silicon fertilizers have beneficial effects on the growth and disease resistance of rice. However, their effects vary greatly with sources of slag and are closely related to availability of silicon (Si) in these materials. To date, few researches have been done to compare the differences in plant performance and disease resistance between different slag-bas...
This article examines the history of Karaganda metallurgical plant construction. The authors emphasize that issue building large objects heavy industry for war effort became urgent during Great Patriotic War. Due to fact Kazakhstan possessed minerals reserves, in 1942 region People’s Commissariat Ferrous Metallurgy USSR initiated construction a production iron, steel and rolled products. Howeve...
Microbiologically influenced corrosion (MC) of steel has been attributed to the activity of biofilms that include anaerobic microorganisms such as iron-respiring bacteria, yet the mechanisms by which these organisms influence corrosion have been unclear. To study this process, we generated mutants of the iron-respiring bacterium Shewanella oneidensis strain MR-1 that were defective in biofilm f...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Microbiologically influenced corrosion (MIC) of mild steel in seawater is an expensive and enduring problem. Little attention has been paid to the role of neutrophilic, lithotrophic, iron-oxidizing bacteria (FeOB) in MIC. The goal of this study was to determine if marine FeOB related to Mariprofundus are involved in this process. To examine this, field incubations and laboratory microcosm exper...
Introduction: One of the important factors causing nosocomial infections is drug-resistant Staphylococcus aureus strain, so correspondingly, having norA efflux pump is one of the bacterial's ability to generate drug resistance. Iron has been used as a nanoparticle with antimicrobial activity against bacteria. The aim of this study was to investigate the effect of iron oxide nanoparticles synthe...
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