نتایج جستجو برای: X52

تعداد نتایج: 59  

2013
J. W. Sowards

This paper evaluates the effects of microbiologically influenced corrosion (MIC) on fatigue-crack growth of candidate materials useful in expanding bio-ethanol usage, including a storage-tank steel (ASTM A36) and two pipeline steels (API 5L X52 and X70). The microbiological species sampled and cultivated from an ethanol fuel production stream are responsible for both acetic acid and hydrogen su...

Journal: :Applied mechanics 2021

Strain-based design (SBD) plays an important role in pipeline and assessment of pipelines subjected to geo-hazards. Under such hazards, a pipe can be substantial plastic strains, leading tensile failure at locations girth weld flaws. For SBD, the finite element method (FEM) reliable tool calculate strain capacity (TSC) for better pipelines. This study aims investigate ductile fracture propertie...

Journal: :Molecules 2016
Rodrigo González-Olvera Viridiana Román-Rodríguez Guillermo E Negrón-Silva Araceli Espinoza-Vázquez Francisco Javier Rodríguez-Gómez Rosa Santillan

An efficient one-pot synthesis of 1,2,3-triazole derivatives of dihydropyrimidinones has been developed using two multicomponent reactions. The aldehyde-1,2,3-triazoles were obtained in good yields from in situ-generated organic azides and O-propargylbenzaldehyde. The target heterocycles were synthesized through the Biginelli reaction in which the aldehyde-1,2,3-triazoles reacted with ethyl ace...

Journal: :Journal of Materials Research and Technology 2012

Journal: :Annals of Microbiology 2021

Abstract Purpose Salt stress reduces plant growth and is now becoming one of the most important factors restricting agricultural productivity. Inoculation growth-promoting rhizobacteria (PGPR) has been shown to confer tolerance against abiotic stress, but detailed mechanisms how this occurs remain unclear application effects in different reports are unstable. In order obtain a favorite effect P...

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