Escherichia coli O157:H7 is a serious pathogen causing haemorrhagic colitis. It has been responsible for several large-scale outbreaks in recent years. E. coli O157:H7 is able to survive in a range of environments, under various conditions. The risk of infection from contaminated surfaces is recognised, especially due to the low infectious dose required. In this study, a high concentration (10(...

This study presents an analytical investigation and electrochemical conservation treatment for a group of four copper alloy artifacts excavated from the archaeological cemetery that was located on site Queen Alia International Airport, Jordan. The chemical analyses internal alloys showed bracelet spatula were made quaternary copper–zinc–tin–lead alloy, copper–silver–zinc copper–tin, bronze allo...

Damage to mechanical components caused by wear is considered to be an important issue for mechanical engineers. For the purpose of wear resistance, it is necessary to improve the material properties of the mechanical elements. Furthermore, low friction plays an important role in saving energy. Hence, it is important to establish a key technology for wear resistance and low friction through appr...

Abstract: The aim of the present investigation is to study the physical and mechanical characteristics of dental-filling spherical high-copper and silver amalgams and to compare them with a common high-copper domestic unicompositional amalgam. In this study, cylindrical specimens were mechanically condensed according to the ISO 1559:1986 Standard in order to measure the compressive strength, Vi...

High thermal conductivity, low thermal expansion and low density are three important features in novel materials for high performance electronics, mobile applications and aerospace. Spark plasma sintering was used to produce light metal-graphite composites with an excellent combination of these three properties. By adding up to 50 vol.% of macroscopic graphite flakes, the thermal expansion coef...

Glassy metallic alloys are richly tunable model systems for surface glassy dynamics. Here we study the correlation between atomic mobility, and the hopping rate of surface regions (clusters) that rearrange collectively on a minute to hour time scale. Increasing the proportion of low-mobility copper atoms in La-Ni-Al-Cu alloys reduces the cluster hopping rate, thus establishing a microscopic con...

Neutron scattering experiments have been performed on amorphous CuxTi-|_x alloys with various amounts of hydrogen and deuterium. The combination of i) negative and positive scattering lengths of titanium and copper and ii) negative and positive scattering lengths of hydrogen and deuterium has been used to identify unambiguously the supplementary peaks which appear in the pair correlation curves...

Contamination of high-touch surfaces with infected droplets bodily secretions is a known route virus transmission. Copper have been reported to inactivate human coronaviruses after several minutes, via the release Cu cations. Utilization copper alloys for can be pivotal preemptive strategy preventing next pandemic. Understanding true efficacy by which copper, and alloys, under realistic conditi...

1. Preparation and assessment of Dimensionally Stable Anodes (DSAs) Summary: Dimensionally Stable Anodes are used in non-ferrous extractive electrometallurgy (copper, zinc...) and in water electrolysis for the oxygen evolution. They substitute in electrometallurgy lead alloys electrodes subject in normal industrial operating conditions to creep. The objective of this work is to continue what wa...

In order to study the dynamic response of tungsten heavy alloy materials under explosive loading, two kinds typical alloys for explosively formed projectile (EFP) liner and one kind existing EFP were tested in a flash X-ray experiment, with copper as reference. Results showed that could form coherent EFP, while 90W–9Ni–Co W–25Re liners fractured different extents. The microscopic features three...