Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Samuel Estifanos"'
Autor:
Goitom Gebreyohannes Berhe, Desta Berhe Sbhatu, Samuel Estifanos Gebre, Kiros Hagos Abay, Genet Gebryohannes Mhretu, Gebrekidan Mebrahtu Tesfamariam, Samuel Alemayehu Lapiso, Mulugeta Sisay Cheru, Afewerk Gebre Meressa
Publikováno v:
International Journal of Chemical Engineering, Vol 2024 (2024)
Oxidative leaching is an inexpensive alternative to using chemical cyanide extraction methods for gold from low-grade gold sulfide. Oxidation of finely ground gold-bearing ore by Acidithiobacillus ferrooxidans was evaluated in terms of cell density,
Externí odkaz:
https://doaj.org/article/6907993f341b49319184b576efddfd66
Autor:
Zelealem Haftu, Samuel Estifanos
Publikováno v:
EQA, Vol 40, Iss 0, Pp 11-18 (2020)
The paper assesses the water quality parameters of Werii catchment in Northern Ethiopia. 27 water samples were collected and analyzed for 17 physico-chemical parameters. The electrical conductivity ranges 128-627μS/cm, while turbidity: 20-36.23NTU;
Externí odkaz:
https://doaj.org/article/a4d3812989a34ad18633d11fbefc2815
Autor:
Kiros Gebremichail Gebresilasie, Goitom Gebreyohannes Berhe, Amanual Hadera Tesfay, Samuel Estifanos Gebre
Publikováno v:
International Journal of Analytical Chemistry, Vol 2021 (2021)
Groundwater is one of the most important sources of drinking water in Kafta Humera Woreda; hence, it is important to assess the quality of these water sources. The aim of this study was to assess the levels of some physicochemical parameters and heav
Externí odkaz:
https://doaj.org/article/d480562328584572b5236ff667f3423b
Autor:
SAMUEL ESTIFANOS, AYNALEM DEGEFA
Publikováno v:
International Journal of Economic and Environment Geology, Vol 3, Iss 2, Pp 12-20 (2012)
Twenty six soil samples were collected around the vicinity of Messebo cement factory in Mekelle, Ethiopia from 0-5 and 5-15 cm depths and determined their physicochemical properties and heavy metals contents. The results indicated that the soils are
Externí odkaz:
https://doaj.org/article/00a983b11bcc4d31afc9076893df3c53
Akademický článek
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Autor:
Berhe, Goitom Gebreyohannes, Sbhatu, Desta Berhe, Gebre, Samuel Estifanos, Abay, Kiros Hagos, Mhretu, Genet Gebryohannes, Tesfamariam, Gebrekidan Mebrahtu, Lapiso, Samuel Alemayehu, Cheru, Mulugeta Sisay, Meressa, Afewerk Gebre
Publikováno v:
International Journal of Chemical Engineering (1687806X); 3/8/2024, Vol. 2024, p1-8, 8p
Autor:
Berhe Hailu, Samuel Estifanos
Publikováno v:
Momona Ethiopian Journal of Science. 13:164-176
This paper investigates the effects of gypsum powder from the gypsum plant in Adigudem on chemical properties of soil as well as the yield of two major crops, wheat (Triticum aestivum) and barley (Hordeum vulgare). Three mixes of 10kg of soil with 0%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fe40b18e7cc4eafb2cf7c885f86acc7
https://doi.org/10.4314/mejs.v13i1.9
https://doi.org/10.4314/mejs.v13i1.9
Autor:
Samuel Estifanos Gebre, Goitom Gebreyohannes Berhe, Kiros Gebremichail Gebresilasie, Amanual Hadera Tesfay
Publikováno v:
International Journal of Analytical Chemistry, Vol 2021 (2021)
International Journal of Analytical Chemistry
International Journal of Analytical Chemistry
Groundwater is one of the most important sources of drinking water in Kafta Humera Woreda; hence, it is important to assess the quality of these water sources. The aim of this study was to assess the levels of some physicochemical parameters and heav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::720a4cf82126ec9d03085026eeb2cbc8
https://doaj.org/article/d480562328584572b5236ff667f3423b
https://doaj.org/article/d480562328584572b5236ff667f3423b
Publikováno v:
Bulletin of Engineering Geology and the Environment. 78:1607-1616
The research was conducted to verify two vesicular basalt deposits identified for pozzolanic sources. These are Wejerat site, in southern Tigray, which has been the major source of vesicular basalt for cement production, and Adisherafo site found nea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b12d159e12ba4e6142e22fc86c67ebd5
https://doi.org/10.1007/s10064-018-1239-0
https://doi.org/10.1007/s10064-018-1239-0
Akademický článek
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