Shock-wave experiments on pure iron preheated to 1573 K were conducted in the 17-73 GPa range. The shock-wave equation of state ofy-iron at an initial temperature of 1573 K can be fit with u, = 4.102 (0.015) km/s + 1.610(0.014) up with p 0 = 7.413±0.012 Mg/m• We obtain for y-iron's bulk modulus and pressure derivative the values: 124.7±1.1 GPa and 5.44±0.06, respectively. We present new data fo...

Hemojuvelin (HJV) positively modulates the iron regulator hepcidin, and its mutations are the major cause of juvenile hemochromatosis (JH), a recessive disease leading to iron overload. Defective HJV reduces hepcidin up-regulation both in humans and in Hjv-deficient mice. To investigate the JH pathogenesis and the functional properties of human HJV we studied the biosynthesis and maturation of ...

A new species of abertellid sand dollar, Abertella miskellyi n. sp., is described from the Miocene Camarones Formation of Patagonia, southern Argentina. The new taxon corroborates the existence of the genus in South America, given that Abertella is most common in the southeastern USA and the eastern coast of Central America. It is characterized by a unique basicoronal circle, in which the inter...

Research has been carried out on the synthesis of river sand-based nanosilica magnetic material to improve water quality by utilizing iron sand taken from four rivers in Lombok island region as a natural for filtration process, this study aims determine whether able well or not. This uses an experimental method where gone through coprecipitation process and parameters measured are temperature, ...

The decomposition of H(2)O(2) on iron minerals can generate •OH, a strong oxidant that can transform a wide range of contaminants. This reaction is critical to In Situ Chemical Oxidation (ISCO) processes used for soil and groundwater remediation, as well as advanced oxidation processes employed in waste treatment systems. The presence of dissolved silica at concentrations comparable to those en...

Ductile Cast Iron is a widely used cast iron. iron applications are in various sectors of modern mechanical industries. has wide uses the field car industry, military industries, agricultural equipment, construction and mines. The production ductile faces many technical difficulties our local factories due to difficulty providing equipment technologies for its by common methods. In this study, ...

The main idea of the presented work is to examine the effect of adding industrial waste in the form of Gray Cast iron (GCI) and Ductile Cast Iron (DCI) from the casting industry in the concrete mix. GCI and DCI turnings were used as a partial replacement material for the usual fine aggregates to study the effect on compressive strength and flexural strength of the mix. Partial replacement of fi...

M. Górny, R. Dańko, M. Holtzer. AGH University of Science and Technology, Faculty of Foundry Engineering, Kraków, Poland This article addresses the effect of mold filling and wall thickness on the flake graphite layer in ductile iron. The research was conducted for castings with different wall thickness (3-8 mm) and using molding sand with furan resin. A thermal analysis has been performed alon...

Facilitation of bacterial transport for the purpose of bioaugmentation of contaminant degradation may be achieved by a number of methods typically involving changes in the properties of the groundwater or changes in the characteristics of the bacterial surface. Facilitated bacterial transport was investigated in laboratory experiments monitoring bacterial retention in quartz sand and glass bead...