Search results for " Mill."

Experimental investigation and multi-scale modelling of the behavior of mechanically activated metallic powders : from binary systems to High Entropy…

2021

Generally, metal alloys consist of a main element associated with other elements present in smaller quantities such as iron, nickel, aluminum or copper alloys. The precise composition of an alloy is adjusted according to the required performance: high temperature behavior, corrosion resistance, mechanical properties, durability ... In 2004, a Taiwanese scientist, JW Yeh, had the idea of making an alloy base of several elements, at least 5, whose composition in the alloy varies between 5% and 30% at. Yeh invented the high entropy alloy (HEA). Mixed on a microscopic scale, the metals form a remarkably stable solid solution. The explanation is thermodynamic. An alloy is all the more stable as …

Microstructure-process relationship and reactivity at the nanoscale : a molecular dynamics study of Ni, Ni-Al, and Ti-Al metallic systems

2023

The process-microstructure relationship is central in materials science because the microstructure will determine the properties of the materials developed by the processes. In our work, we focused on different metallurgical processes by adopting a description at the atomic scale. This approach allows us to detect the elementary mechanisms that are at the origin of the observed microstructures without having to postulate macroscopic mechanisms or estimate the associated parameters. In this respect, molecular dynamics simulations provide a tool for "in-situ" observation of metallic systems as long as an atomic interaction potential is available. The originality of our approach consists in mo…

Effect of the milling conditions on the degree of amorphization of selenium by milling in a planetary ball mill

2007

The effect of the milling parameters (rotation speed of the milling device and duration of milling) on the phase composition of the products of milling of fully crystalline selenium has been investigated. The milling was conducted using a planetary micromill and the phase composition of the milling products was determined by differential thermal analysis. It has been found that ball milling leads to the partial amorphization of the starting crystalline material. The content of amorphous phase in the milling products depends, in a rather complicated way, on the milling parameters. At the milling parameters adopted in the present study, the milling product was never fully amorphous. The compl…

Homenatge a Stanley L. Miller

2003

Conferència homenatge al professor Stanley L. Miller.

中国朦胧诗人的浪漫特质 ——以J.W.米勒和华兹华斯浪漫主义理论为参照 (Zhongguo menglong shirende langman tezhi - yi J.W. Mile he Huacihuasi langmanzhuyi lilun wei canzhao) The Romant…

2012

Through the principles of Romanticism expressed by Wordsworth in his 'Preface', the paper proposes a new appraisal of the Chinese 'hazy poets' of today also by taking into consideration J.W. Miller's point of view.

¿Tiene el ser humano un puesto singular en el cosmos?

2019

Implementare le politiche sanitarie a livello regionale per l'eliminazione dell'epatite C ai tempi del COVID-19

2022

Viral hepatitis C is an important public health problem and its elimination by 2030, defined by the World Health Organization, is an ambitious goal. The chance of free screening for HCV infection represents an important achievement that requires a successful State-Regions coordination and an effective regional organisation, that guarantees an interdisciplinary course between local and specialized healthcare. A structured communication program to increase the sensitivity of target populations as well as health professionals is the key for success. The implementation of the proactive screening, defined by the Milleproroghe Law, is crucial because it will define the tracks for the whole HCV co…

« Lee Miller, War “ethical” Photographer?»

2013

International audience; This presentation discusses some of Lee Miller photographs of Dachau and argues of their ethical relevance.

A l’entorn de la ironia de situació i la comèdia burgesa: el cas de «La llotja», de Josep M. Millàs-Raurell

2016

Resum: En aquest article ens aproximem als usos de la ironia de situació en la construcció de la comèdia burgesa dels anys vint del segle XX, i perfer-ho agafarem com a text de referència la peça La llotja (1928), de J. M. Millàs-Raurell. Ara bé, l’itinerari d’anàlisi que hi plantegem partirà de la consideració de la comèdia burgesa com un dels models escènics de més difusió, el qual té en la producció dramàtica de Carles Soldevila un referent essencial, representada en aquest article per Bola de neu (1927). Tot seguit, passarem a l’objecte central de la nostra anàlisi, La llotja, peça que posarem en relació amb la construcció de Soldevila per veure fins a quin punt hi trobem els mateixos r…

Extracts deriving from olive mill waste water and their effects on the liver of the goldfish Carassius auratus fed with hypercholesterolemic diet

2014

The present research aims to evaluate the beneficial effects of polyphenols derived from waste water from a olive mill, obtained by non-plastic molecular imprinting device, in a hypercholesterolemic diet on Carassius auratus, commonly known as goldfish that was selected as experimental model. The study was conducted with morphological and histochemical analyses and also the data were supported by immunohistochemical analysis. Results show the beneficial activity of polyphenols with a reduction of the damage in the steatotic group, confirming that they may be suggested in the treatment of diseases by lipid accumulation, and used as any addition in feed for farmed fish, in order to improve th…