Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Thammiris Mohamad El Hajj"'
Autor:
Rafaella Menezes Ayllon, Marcos R. Furlan, Thammiris Mohamad El Hajj, Paulo Sergio Cardoso Silva
Publikováno v:
Brazilian Journal of Radiation Sciences, Vol 11, Iss 1A (Suppl.) (2023)
The use of mining residues in agriculture may be possible, as long as there be previous studies in different areas, one of them being the analysis of the involved radionuclides behavior. This study determined the concentrations of 232Th activity in s
Externí odkaz:
https://doaj.org/article/9faa991a603045dca11b85b14972a7ac
Autor:
Felipe Expedito Martins Alves, Beatriz Alexandra de Souza, Daniel Armelim Bortoleto, Thammiris Mohamad El Hajj
Publikováno v:
REM: International Engineering Journal, Vol 73, Iss 4, Pp 547-553 (2020)
Abstract Reconciliation plays a key role in controlling and analysing mine operations. It consists in comparing model estimates with actual results produced by the plant, being used as an indicator, a monitoring tool. Discrepancies between these valu
Externí odkaz:
https://doaj.org/article/333abb6444bc485ba54bce623d867f2d
Publikováno v:
Holos, Vol 3, Iss 0, Pp 1-12 (2020)
The regulation of mining activities is important for the mineral resources of our planet to be used consciously, also seeking to promote the economic development of the communities where mining companies are located. The mining laws of six countries:
Externí odkaz:
https://doaj.org/article/e8ea3bd2199c425e95de301b4bf0e4c5
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 2, Pp 1712-1719 (2019)
The relationship between mining companies and the society is not limited to the local communities surrounding the operations. The evaluation of the working conditions of the operators of mining equipment is an important dimension of the relationship
Externí odkaz:
https://doaj.org/article/1cec5c2d25ad4afd9e14c7c48246238a
Autor:
Thammiris Mohamad El Hajj
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Os isótopos do gás radioativo radônio são gerados a partir de qualquer solo ou rocha que contenha urânio e tório na sua composição. Desta forma, rochas ornamentais utilizadas na construção civil são fontes naturais dos isótopos de radôni
Autor:
Thammiris Mohamad El Hajj
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
No contexto da indústria mineral, reconciliação pode ser definida como a prática de comparar a massa e o teor médio de minério previstos pelos modelos geológicos com a massa e o teor gerados na usina de beneficiamento. Esta prática tem se mos
Publikováno v:
HOLOS. 6
Sustainable development becomes urgent from the transformations that contemporary society, in its structure and functionality, has imposed on nature, including the dependence on dozens of mineral resources. The mining industry is the basis of several
Autor:
Luana Teixeira Pontara Lopes, Thammiris Mohamad El Hajj, Edmo da Cunha Rodovalho, Fernando Cesar Fernandes Junior
Publikováno v:
Mining Technology. 130:1-7
The mining sector is looking for new technologies to minimise its environmental impacts and to maximise its reserves. The need to increase the life of mines has led to investigations considering th...
Autor:
Guilherme de Lima Reis, M. P. Campos, Thammiris Mohamad El Hajj, Paulo Sergio Cardoso da Silva
Publikováno v:
Health physics. 121(2)
Radiation workers are normally exposed to doses resulting from their day-to-day activities. Besides that, background radiation, such as radon, can contribute to the exposure rates. The radionuclide 222Rn is a noble gas belonging to the uranium series
Autor:
Paulo Sergio Cardoso da Silva, Mauro Pietro Angelo Gandolla, Thammiris Mohamad El Hajj, Homero Delboni Júnior, Henrique Torquato
Publikováno v:
Journal of Sustainable Mining. 18
This work analyzed samples from a niobium mine in Brazil which produces massive quantities of non-processed waste (NPW) each year. Due to concerns about the environmental impact of stacking up this material in the long-term, investigations have had b