Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Tamara Radu"'
Autor:
Tamara RADU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 43, Iss 2 (2020)
Experimental research has focused on the corrosion behaviour of a widely used protective coating, respectively, galvanized sheet in various corrosive aqueous environments present in nature. In the laboratory experiments, the following were chosen as
Externí odkaz:
https://doaj.org/article/4a91738f3bef472faa5ee6255ab48586
Autor:
Tamara RADU, Florentina POTECASU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 43, Iss 1 (2020)
Within the present work deformability of Ni-P coatings was analyzed on thin strips of low carbon steel, coated with Ni-P layers in correlation with their structure and chemical composition. Thin layers of 2-7 µm were made at immersion times of 5, 10
Externí odkaz:
https://doaj.org/article/05c07b353a32441f85b3079390d06a7d
Autor:
Tamara RADU, Anișoara CIOCAN
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 36, Iss 4 (2019)
Work environment present risk factors due to chemical pollution of ambient air with dust, smoke, fumes, vapors, mists and gases. Moreover physical risk factors (related to noise, lighting, temperature, vibration, humidity, radiation) lead to hazards
Externí odkaz:
https://doaj.org/article/48985fbbdb0e49b294b666147aefb1d4
Autor:
Tamara RADU, Florentina POTECAȘU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 41, Iss 4 (2018)
Zinc melts has been alloyed, in various proportions and combinations, with Bi, Sn, Ni, Pb. Depending on the characteristics of the alloying elements, the alloying technology of the zinc bath was established. To determine the degree of homogenization
Externí odkaz:
https://doaj.org/article/9d442a9c631848f2a404273a48ee6e4b
Autor:
Tamara RADU, Andreea Georgiana DOBREA
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 40, Iss 2 (2017)
The autocatalytic reduction method (electroless method) was applied to obtain the Ni-P layers with different P contents. Nickel sulfate was used as nickel ion source and as reducing agent the sodium hypophosphite. The surface morphology, microstructu
Externí odkaz:
https://doaj.org/article/3f15365bf30440668065bb4f4a1fd364
Autor:
Tamara RADU, Bogda LUNGU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 40, Iss 2 (2017)
Response to risk is a process that is directly involved in risk management and is governed by the organization's security strategy, environmental characteristics and security mechanisms. The management identifies the options available to respond to t
Externí odkaz:
https://doaj.org/article/7ab56d7cc2b048538c79b9794fd55725
Autor:
Tamara RADU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 39, Iss 3 (2016)
The paper presents qualitative and quantitative methods, applicable on environmental risks, and conditions of application. The principles of the two classes of risk assessment methods and the advantages and disadvantages of their application in envir
Externí odkaz:
https://doaj.org/article/859a3bb7877b4b6c8ce29453187e9d99
Autor:
Tamara RADU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 39, Iss 2 (2016)
The technological cleaning processes of steel strip surfaces used in metal coatings require organic or inorganic chemicals with a high risk of toxicity. To avoid pollution, the water resulting from these processes must be neutralized. During the degr
Externí odkaz:
https://doaj.org/article/b0beaf07047d4c22a4ec5ff7d669ca2d
Autor:
Tamara RADU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 38, Iss 4 (2015)
Thermal power plants still represent an important source of energy both in Romania and in Europe. Risks on the environment are primarily generated by the noxae generated from combustion of fossil fuels, namely: noxious gases (CO2, CO, NOx, SOx), part
Externí odkaz:
https://doaj.org/article/b480885c4537457aa1e9cdf2af29e6bd
Autor:
Tamara Radu, Florentina Potecasu
Publikováno v:
International Journal of Conservation Science, Vol 1, Iss 2, Pp 93-98 (2010)
The surface morphology of the galvanized sheets is formed after the solidification of the melted metal, carried along the carrier strap during its extraction from the zinc bath. The surface layer quality depends on the fluidity of the melting, on its
Externí odkaz:
https://doaj.org/article/1648176dbed2400ea3c26eab7b83d1df