نتایج جستجو برای: equiaxial strain

تعداد نتایج: 218509  

H Ravan M Hassanshahian

Marine microorganisms have unique physiological properties and novel metabolites such as biosurfactant to live in extreme habitats (e.g. oil polluted environment). The aim of this study was to characterize some biosurfactant-producing bacteria collected from sediment and seawater samples from the Caspian Sea. These bacteria were isolated using enrichment method in ONR7a medium with crude oil as...

Journal: :Metals 2021

This study focuses on the impact of solidification inclusion morphologies in different sizes production-scale electro-slag remelting (ESR) and under a protected pressure-controlled atmosphere, (PESR), ingots, common martensitic stainless steel grade. The investigation has been carried out to increase knowledge change during ESR PESR remelting. In order optimize process routes for grades, it is ...

Journal: :Journal of Materials Science 2021

Abstract This study analysed the influence of codeposition SiC particles with different sizes: 50 nm, 500 nm and 5 μm, type bath agitation (stirring or ultrasonic) on electrocrystallisation nickel coatings. The composites matrix microstructure was by means SEM, EBSD XRD, to evaluate grain size, crystal orientation, internal stresses benchmarked against pure samples electrodeposited in equivalen...

2013
Farhang Nabiei Cecile Hebert Marco Cantoni Paul Bowen Tewari Abhishek

Qualitative EDX analysis: A map is acquired in low magnification. Results show equiaxial grains finely distributed through out the sample. In spite of the fact that simulations indicate no clear energetic gain or loss for cosegreation over single dopant segregation in this material, we observed that in all grain boundaries these two dopants (Y an La) are segregating together (figure 2). This co...

Journal: :iranian journal of microbiology 0
azar dokht khosravi health research institute, infectious and tropical diseases research center, ahvaz jundishapur university of medical sciences, ahvaz, iran and department of microbiology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, iran. hamed goodarzi department of microbiology, school of medicine, ahvaz jundishapur university of medical sciences, ahvaz, iran. seyedmohammad alavi health research institute, infectious and tropical diseases research center, ahvaz jundishapur university of medical sciences, ahvaz, iran. mohammadreza akhond department of statistics, mathematical science and computer faculty, shahid chamran university, ahvaz, iran.

background and objective: molecular epidemiological studies have shown that certain genotypes of mycobacterium tuberculosis (mtb) are over-represented in limited geographical regions, suggesting of evolution of certain genotypes with increasing virulence and pathogenicity. beijing strain of mtb was initially described by its potential to cause outbreaks worldwide and its association with drug r...

احتشامی, سید محمد رضا, اصغری, جعفر , خاوازی, کاظم, رجبی درویشیان, زهرا ,

Abstract: In order to Investe spraying by Plant Growth Promoting Bacteria (PGPB) and their metabolits on morphophysio-logical indices, qualitative indices and yield in Hashemi cultivar of rice, an experiment was arranged based on completely randomized block design with four replications in the greenhouse of the faculty of Agricultural Sci-ences in The University of Guilan in 2010. In...

Journal: :Advances in Materials Science and Engineering 2021

The effect of particle size and sintering temperature the mixtures kyanite metallic aluminum related to thermal transformation into primary mullite free silica was studied. In addition, reaction between ?-Al2O3 (in situ produced by oxidation) obtained in cristobalite structure from obtain secondary mullite. powders were milled 0.5, 3, 6, 12 hours then mixed with powder, which previously 3 hours...

Journal: :Metals 2022

The failure of a chromium plating layer on the surface piston rod was analyzed, and an Ni-based alloy mixed with niobium (Nb) composite coating investigated by means stereomicroscopy, metallographic microscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Vickers hardness testing, wear testing. results show that penetrating cracks were prese...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده کشاورزی 1391

مطالعه ی حاضر به منظور جداسازی و شناسایی ریزوباکتری های متحمل به سرب که قادر به ارتقای رشد گیاهان تحت شرایط بروز تنش فلزات سنگین بوده و از توانایی افزایش زیست فراهمی سرب برای گیاهان پالایش دهنده ی خاک های آلوده به این فلز سنگین برخوردار هستند و همچنین ارزیابی تأثیر آن ها بر جذب سرب توسط گیاه آفتابگردان (helianthus annus l.) در شرایط گلخانه به اجرا در آمد. این مطالعه در یک خاک آلوده در مجاورت مع...

H Mehrabi M Shariati,

In this paper, low cycle fatigue life of CK45 steel and SS316 stainless steel under strain-controlled loading are experimentally investigated. In addition, the impact of mean strain and strain amplitude on the fatigue life and cyclic behavior of the materials are studied. Furthermore, it is attempted to predict fatigue life using energy and SWT damage parameters. The experimental results demons...

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