نتایج جستجو برای: metal industries

تعداد نتایج: 242103  

Journal: :Occupational and environmental medicine 2005
S Krstev M Dosemeci J Lissowska W-H Chow W Zatonski M H Ward

BACKGROUND In spite of the dramatic decline in the incidence of stomach cancer in the twentieth century, Poland has one of the highest rates in the world. AIMS To evaluate the risk of stomach cancer by grouped occupations and industries, as well as by some specific occupational exposures. METHODS Cases (n = 443) were newly diagnosed with stomach adenocarcinomas between 1994 and 1996. Contro...

2015
Teemu Makkonen

Music in general and the music industry in particular have been understudied subjects in the field of geography. The relatively scarce amount of literature on music industries has concentrated its attention on companies operating inside the industry, and on popular music. There is a gap in the knowledge on the networking processes of individuals inside the music industry and the geographical dy...

2015
Roberto Chiarelli Maria Carmela Roccheri R. Chiarelli M. C. Roccheri

Atmosphere, earth and water compose the environment. The presence of heavy metals in the environment has grown because of their large employment in some industrial and agricultural activities. Although these metals are terrestrial products, they flow into the sea through effluents and sewage or are directly discharged from industries placed on the seawater front. It should be considered that me...

2014
Hari Om Sunil Pandey

Industries involved in surfacing operations use various fusion welding especially arc welding processes. These operations demand high deposition rates but at low penetration values in the base metal. Conventional SAW, besides its high deposition characteristics, employs high values of welding current and is not many times favoured for surfacing due to high degree of dilution of surfacing alloys...

2017
Anshu Rastogi Marek Zivcak Oksana Sytar Hazem M. Kalaji Xiaolan He Sonia Mbarki Marian Brestic

An increasing need of nanotechnology in various industries may cause a huge environment dispersion of nanoparticles in coming years. A concern about nanoparticles interaction with flora and fauna is raised due to a growing load of it in the environment. In recent years, several investigators have shown impact of nanoparticles on plant growth and their accumulation in food source. This review ex...

2012
A. Pradeep

–Friction stir welding is a solid state welding technology used for welding low melting point metals, such as Al, Mg and its alloys. Later welding was conducted on dissimilar metals which also produced a better defect free joint. Tool design and welding parameters contributes a major role for producing a better weld. Material flow and friction heat are the factors that the internal factor for t...

2012
Rajesh Purohit R. S. Rana C. S. Verma

Metal matrix composites are the class of composite materials finding vast applications in automotive, aircraft, defense, sports and appliance industries. A horizontal ball mill has been fabricated for milling of aluminum and SiC particles. The change in powder particle morphology during mechanical alloying of Aluminum and SiC powders using horizontal ball mill was studied. Al-SiCp composites wi...

2010
N. Tugrul O. Dere Ozdemir S. Piskin

Abstract— The effect of calcination temperature on the morphology of plating sludge generated from waste water treatment plant was studied. This waste was hazardous waste due to high toxic metal content [1]. It must be recovered, reuse or recycled before the process but its properties should determined in order to decide recovery method [2]. Previous researches were shown that this kind of wast...

Journal: :Metals 2021

Hydroforming processes of metal tubes and sheets are being widely applied in manufacturing because the increasing demand for lightweight parts sectors such as automobile, aerospace, ship-building industries [...]

2012
Letícia Flohr Armando Borges de Castilhos Júnior William Gerson Matias

Industrial wastes may produce leachates that can contaminate the aquatic ecosystem. Toxicity testing in acute and chronic levels is essential to assess environmental risks from the soluble fractions of these wastes, since only chemical analysis may not be adequate to classify the hazard of an industrial waste. In this study, ten samples of solid wastes from textile, metal-mechanic, and pulp and...

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