Results 51 to 60 of about 51,308 (259)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

A study on detection of extended-spectrum beta-lactamases (ESBLs) and comparison of various phenotypic methods of AmpC detection in Pseudomonas aeruginosa from various clinical isolates in a tertiary care teaching hospital

Muller Journal of Medical Sciences and Research, 2016
Introduction: Pseudomonas aeruginosa is one of the major etiological agents of nosocomial infection. They are difficult to treat as the majority of them exhibit varying degrees of innate resistance.
Subbalakshmi Easwaran, Ranjani Chittur Yerat, Rajendran Ramaswamy   +2 more
doaj   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Antibiotic Resistance in Enterococcus faecalis Isolated from Hospitalized Patients

Journal of Dental Research, Dental Clinics, Dental Prospects, 2013
Background and aims. Enterococci are Gram-positive cocci that often occur in pairs (diplococci) or short chains. Beside developing high level of antibiotic resistance, these bacteria can cause wide range of disease in human, thus to help provide an ...
Esrafil Balaei Gajan, Adileh Shirmohammadi, Mohammad Aghazadeh, Mohammad Alizadeh, Alireza Sighari Deljavan, Farzin Ahmadpour   +5 more
doaj   +1 more source

Mezlocillin: tentative interpretive standards for disk diffusion susceptibility testing [PDF]

Antimicrobial Agents and Chemotherapy, 1981
The susceptibility of 447 clinical bacterial isolates to mezlocillin and carbenicillin was tested by standardized agar disk diffusion and reference broth micro-dilution methods. Tentative interpretive criteria for disk susceptibility testing by using 75 micrograms mezlocillin disks are proposed: susceptible, greater than or equal to 16 mm ...
P C, Fuchs, A L, Barry, C, Thornsberry, R N, Jones, E H, Gerlack   +4 more
openaire   +2 more sources

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Antibiotic Susceptibility Profile of Clostridium Difficile Bacteria Isolated from Older Residents of a Nursing Home in Iran

Sālmand, 2021
Objectives: Clostridium difficile (C. diff) is a gram-positive anaerobic bacterium knwon as the most common cause of nosocomial diarrhea in nursing homes.
Ahmad Ghasemi, Ashraf Mohabati Mobarez, Ehsan Mostafavi   +2 more
doaj  

Detection of inducible and constitutive clindamycin resistance among Staphylococcus aureus isolates in a tertiary care hospital, Eastern India

Avicenna Journal of Medicine, 2016
Introduction: Clindamycin is an excellent drug for skin and soft tissue Staphylococcus aureus infections, but resistance mediated by inducible macrolide-lincosamide-streptogramin B (iMLS B ) phenotype leads to in vivo therapeutic failure even though they
Subasini Majhi, Muktikesh Dash, Dharitri Mohapatra, Ashoka Mohapatra, Nirupama Chayani   +4 more
doaj   +1 more source

Patterns of Antibiotic Resistance in Staphylococcus aureus Isolates and Detection the Heteroresistance to Vancomycin by Population analysis Method [PDF]

مجلة جامعة الانبار للعلوم الصرفة, 2018
Staphylococcus aureus is a major cause of bacterial poisoning and spread widely in Iraq. In this study vancomycin resistant S. aureus (VRSA) were isolated from wounds, skin, and nose of human .
Hajer A. Alani, Dhia S. Hassawi, May T. Flayih   +2 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source