نتایج جستجو برای: st52

تعداد نتایج: 37  

2016
Takashi Takahashi Kazuaki Arai Dong-Hyun Lee Eun-Ha Koh Haruno Yoshida Hisakazu Yano Mitsuo Kaku Sunjoo Kim

BACKGROUND We determined the epidemiological characteristics of erythromycin (EM)-resistant Streptococcus pyogenes (group A streptococci, GAS) strains isolated from Korea and Japan, using emm genotyping and multilocus sequence typing (MLST). METHODS Clinical isolates of GAS had been collected from 1992 to 2012 in Korea and from 2004 to 2009 in Japan. EM resistance was determined by the microd...

2018
Jessica Joerling Stefanie A Barth Karen Schlez Hermann Willems Werner Herbst Christa Ewers

Swine dysentery (SD) is an economically important diarrheal disease in pigs caused by different strongly hemolytic Brachyspira (B.) species, such as B. hyodysenteriae, B. suanatina and B. hampsonii. Possible associations of epidemiologic data, such as multilocus sequence types (STs) to virulence gene profiles and antimicrobial susceptibility are rather scarce, particularly for B. hyodysenteriae...

Journal: :Fiatal Műszakiak Tudományos Ülésszaka 1997

2014
Kinga M. Sulyok Sándor Hornok Getachew Abichu Károly Erdélyi Miklós Gyuranecz

BACKGROUND Coxiella burnetii, the etiologic agent of Q fever, is a highly infectious zoonotic bacterium. Genetic information about the strains of this worldwide distributed agent circulating on the African continent is limited. The aim of the present study was the genetic characterization of C. burnetii DNA samples detected in ticks collected from Ethiopian cattle and their comparison with othe...

Journal: : 2023

This study focuses on milling under sustainable cutting conditions of ST52 steel, frequently used in the manufacturing industry. steel is a good candidate as workpiece because it inexpensive and readily available. To achieve conditions, zone minimum quantity lubrication technology was during processing. The experiments three speeds (120-180-240 m min-1), feed rates (0.12-0.18-0.24 mm rev-1), co...

Journal: :Jurnal Pendidikan Teknologi Kejuruan 2022

The Failure on tube rod arm cylinder hydraulic excavator caused to lose production and processing time mining site. Investigation included visual inspection, chemical analysis, metallography analyze, microhardness test. Tube material used high silicon type while the standard ST52 carbon steel type. was broken crack several pieces. composition of has different in sulfur content. From hardness te...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مکانیک 1387

هدف از انجام این پژوهش بهبود رفتار تریبولوژیکی فولاد ساده کربنی از نوع st52 با پوششی از tini و tini-tic به روش جوشکاری و مقایسه ریز ساختار و رفتار سایشی این دو با هم است. بدین منظور مخلوط پودریti-ni و ti-ni-c بترتیب با نسبت استوکیومتری مساوی و نسبت 20 درصد تقویت کننده tic به طور جداگانه توسط روش فعال سازی مکانیکی(ball mill) فعال سازی شد و سپس بر سطح نمونه های فولادی st52 به ضخامت 1 میلیمتر پیش ...

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