Gd5(SixGe1-x)4 compounds undergo first-order phase transitions close to room temperature when x ~ = 0.5, which are accompanied by extreme changes of properties. We report the fabrication of the nanoparticles of one of the parent compounds-Gd5Si4-using high-energy ball milling. Crystal structure, microstructure, and magnetic properties have been investigated. Particles agglomerate at long millin...

10 Nanocrystalline Mg87Ni3Al3Mm7 hydrides were produced by reactive mechanical milling (RMM) under hydrogen atmosphere. Milling first under argon, and then under hydrogen atmosphere was also carried out in order to study the effect of the gas atmosphere on the microstructure of the products of milling as well as on their hydriding properties. In both cases, the main product of the milling proce...

For a commercially viable recombinant intracellular protein production process, efficient cell lysis and protein release is a major bottleneck. The recovery of recombinant protein, cholesterol oxidase (COD) was studied in a continuous bead milling process. A full factorial response surface methodology (RSM) design was employed and compared to artificial neural networks coupled with genetic algo...

13 Milling is a critical process for controlling the properties of the granules produced by roll 14 compaction. In the current study, the positron emission particle tracking (PEPT) technique was 15 used to examine the milling kinematics of roll compacted ribbons at various milling speeds. 16 Microcrystalline cellulose (MCC, Avicel PH-102) was used as the model feed material and a 17 radioactive...

BACKGROUND Fine milling of dry lignocellulosic biomass, without prior chemical pretreatment, can produce a high percent theoretical yield of sugars during subsequent enzymatic saccharification. However, the high sugar yields, necessary for a commercial biofuels process, are costly, with the milling energy input, necessary to achieve such yields even exceeding the energy content of the biomass. ...

In this paper the concept and first evaluation of the control principle of the MicroAssistant is presented. The MicroAssistant is an interactive surgical robot system to support the surgeon in microsurgical interventions especially in middle ear surgery. During those interventions the surgeon is often confronted with very small and sensitive structures. This fact conflicts with the exhausting m...

Arsenic sorption on mechanically activated minerals such as magnetite Fe3O4 (Kiruna, Sweden) and olivine (Mg,Fe)2SiO4 (Ǻheim, Norway) has been studied and compared in this work. Experiments were carried out with non-activated and mechanically activated samples. The activation of both minerals was performed in a planetary mill at different milling conditions. The specific surface area and conseq...

This paper presents the research and development of a hybrid rapid manufacturing process being developed at the University of Missouri-Rolla. This process includes a laser deposition and a 5axis CNC milling system. By combining laser deposition and machining processes, the resulting hybrid process can provide greater build capability and better accuracy and surface finish. The hybrid process ca...