Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Walubita Mufalo"'
Publikováno v:
Soils and Foundations, Vol 64, Iss 3, Pp 101445- (2024)
Excavated rock produced during tunnel construction projects in volcanic areas and sedimentary rock of marine origin pose the potential hazard of introducing naturally occurring arsenic (As) into the surrounding soils and groundwater. Thus, appropriat
Externí odkaz:
https://doaj.org/article/9a9a3c4c4075493b84f1796eb713b3cb
Autor:
Kryzzyl M. Maulas, Charla S. Paredes, Carlito Baltazar Tabelin, Mark Anthony Jose, Einstine M. Opiso, Takahiko Arima, Ilhwan Park, Walubita Mufalo, Mayumi Ito, Toshifumi Igarashi, Theerayut Phengsaart, Edrhea Villas, Sheila L. Dagondon, Ephrime B. Metillo, Mylene M. Uy, Al James A. Manua, Mylah Villacorte-Tabelin
Publikováno v:
Minerals, Vol 14, Iss 4, p 339 (2024)
Microbially induced carbonate precipitation (MICP), a widespread phenomenon in nature, is gaining attention as a low-carbon alternative to ordinary Portland cement (OPC) in geotechnical engineering and the construction industry for sustainable develo
Externí odkaz:
https://doaj.org/article/664f5f11a3ef477b80af9fe885c912b1
Autor:
Apete Tuiyaro Soro, Walubita Mufalo, Takahiko Arima, Carlito Baltazar Tabelin, Toshifumi Igarashi
Publikováno v:
Minerals, Vol 13, Iss 5, p 661 (2023)
Although mining contributes to about 1.4% of Fiji’s gross domestic product (GDP), the excavated rocks from mining may have detrimental effects on the environment. In this study, rock samples from five Fiji mine sites were selected to assess their g
Externí odkaz:
https://doaj.org/article/c3cf1f84ed3a4bb88c169e102dd44485
Autor:
Shinsaku Nakamura, Toshifumi Igarashi, Yoshitaka Uchida, Mayumi Ito, Kazuyo Hirose, Tsutomu Sato, Walubita Mufalo, Meki Chirwa, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Minerals, Vol 12, Iss 5, p 535 (2022)
Effects of the water content of ground surface on windborne lead (Pb) dispersion from the zinc (Zn) leach residue site at the Kabwe mine, Zambia, were simulated. The Pb-bearing Zn plant leach residue site was selected as the source of the dispersion,
Externí odkaz:
https://doaj.org/article/4bee871618ff40679ec7d3b0be0e3019
Autor:
Walubita Mufalo, Pawit Tangviroon, Toshifumi Igarashi, Mayumi Ito, Tsutomu Sato, Meki Chirwa, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Toxics, Vol 9, Iss 10, p 248 (2021)
Zambia’s Kabwe mine wastes (KMWs) are responsible for contaminating the surrounding soil and dust in the Kabwe district. Unfortunately, these wastes arise from the historical mining activities of lead (Pb) and Zinc (Zn), which lacked adequate waste
Externí odkaz:
https://doaj.org/article/d893196d1e6e42c38f3e6d2ef221d611
Autor:
Shinsaku Nakamura, Toshifumi Igarashi, Yoshitaka Uchida, Mayumi Ito, Kazuyo Hirose, Tsutomu Sato, Walubita Mufalo, Meki Chirwa, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Minerals, Vol 11, Iss 8, p 901 (2021)
Dispersion of lead (Pb) in mine wastes was simulated for reproducing Pb contamination of soil in Kabwe District, Zambia. Local weather data of year 2019 were monitored in situ and used for the simulations. The plume model, weak puff model, and no puf
Externí odkaz:
https://doaj.org/article/d95dae432c954572b76341ae6c137444
Autor:
Pawit Tangviroon, Kenta Noto, Toshifumi Igarashi, Takeshi Kawashima, Mayumi Ito, Tsutomu Sato, Walubita Mufalo, Meki Chirwa, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Minerals, Vol 10, Iss 9, p 763 (2020)
Massive amount of highly contaminated mining residual materials (MRM) has been left unattended and has leached heavy metals, particularly lead (Pb) and zinc (Zn) to the surrounding environments. Thus, the performance of three immobilizers, raw dolomi
Externí odkaz:
https://doaj.org/article/edd12379880448de9c3c4448fb11a8e8
Autor:
Walubita Mufalo, Pawit Tangviroon, Takahiko Arima, Toshifumi Igarashi, Mayumi Ito, Tsutomu Sato, Kenta Noto, Takeshi Kawashima, Imasiku Nyambe, Hokuto Nakata, Shouta Nakayama, Mayumi Ishizuka
Publikováno v:
Journal of Geochemical Exploration. 249:107209
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbfccfeab42438949260dbee36ce7dfa
https://doi.org/10.1016/j.gexplo.2023.107209
https://doi.org/10.1016/j.gexplo.2023.107209
Publikováno v:
Defect and Diffusion Forum. 385:114-119
The microstructure and superplasticity of the thermomechanically proceeded sheets of Al - 3wt.%Mg - 0.25wt.%Zr were investigated. High density of L12-structured fine dispersoids of Al3Zr metastable phase was observed by TEM analysis. Alloy demonstrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6baa56ee4907ca63df4b565422684407
https://doi.org/10.4028/www.scientific.net/ddf.385.114
https://doi.org/10.4028/www.scientific.net/ddf.385.114
Autor:
V.K. Portnoy, N. Yu. Tabachkova, V. S. Levchenko, A.G. Mochugovskiy, Walubita Mufalo, Anastasia V. Mikhaylovskaya
Publikováno v:
Materials Characterization. 139:30-37
Increasing the recrystallization resistance and the mechanical properties of aluminum-based alloys is possible due to the formation of a nanoscale L12-structured Al3Zr phase. Treatment conditions and alloys composition affect the size and density of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e824d75b6521694e1471954fe8a287f2
https://doi.org/10.1016/j.matchar.2018.02.030
https://doi.org/10.1016/j.matchar.2018.02.030