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Wyszukujesz frazę "Chima, P." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Challenges and opportunities for the future of icampuses
Autorzy:
Thomas, A. M.
Shah, H.
Moore, P.
Evans, C.
Sharma, M.
Pham, H. V.
Osman, K.
Wilcox, A. J.
Rayson, P.
Chapman, C.
Chima, P.
Athwal, C.
While, D.
Powiązania:
https://bibliotekanauki.pl/articles/952933.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
education
icampus
sensors
context
Web 2.0
Opis:
Meeting the educational needs of students currently requires moving toward collaborative electronic and mobile learning systems that parallel the vision of Web 2.0. However, factors such as data freedom, brokerage, interconnectivity and the Internet of Things add to a vision for Web 3.0 that will require consideration in the development of future campus-based, distance and vocational study. So, education can, in future, be expected to require deeper technological connections between students and learning environments, based on significant use of sensors, mobile devices, cloud computing and rich-media visualization. Therefore, we discuss challenges associated with such a futuristic campus context, including how learning materials and environments may be enriched by it. As an additional novel element the potential for much of that enrichment to be realized through development by students, within the curriculum, is also considered. We will conclude that much of the technology required to embrace the vision of Web 3.0 in education already exists, but that further research in key areas is required for the concept to achieve its full potential.
Źródło:
Computer Science; 2013, 14 (1); 5-25
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial analysis of heavy metal accumulation in Mangifera indica and Pentaclethra macrophylla near Owaza gas flaring station in Abia State, Nigeria
Autorzy:
Chima, U. D.
Akah, P. C.
Powiązania:
https://bibliotekanauki.pl/articles/1178996.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Gas flaring
Owaza
Soil
heavy metals
tree leaves
Opis:
The menace of gas flaring in the Niger Delta Region of Nigeria has continued unabated despite incessant promises by the Federal Government to put an end to it. In this study, a spatial analysis of the accumulation of heavy metals in leaves of Mangifera indica and Penthaclethra macrophylla and the soils on which they are growing was carried out. Three sites – 1, 2 & 3, were selected based on the availability M. indica and P. macrophylla at 100 m, 250 m and 350 m distances respectively, from the gas flaring source. Three individual trees were randomly selected from each of M. indica and P. macrophylla for soil and leaf sampling at each site. The collected soil and leaf samples were analysed for Zinc (Zn), Lead (Pb), Cadmium (Cd), Chromium (Cr), Nickel (Ni) and Copper (Cu), using standard methods. There was no significant difference (p > 0.05) in the concentrations of the heavy metals in soils around the roots of M. indica at the 3 sites except for Cd. Copper (Cu), Zn and Cr varied significantly (p < 0.05) in soils around the roots of P. macrophylla at the sites. Cadmium and Ni were almost absent in soils and leaves of both species at the sites. There was no significant difference (p > 0.05) in the concentrations of heavy metals in soils around the roots of M. indica and P. macrophylla at each site except in Site 1 where Cu, Zn and Cr, and Site 3 where Cr, varied significantly between the two species. Copper (Cu), Zn, Cr and Pb in leaves of both M. indica and P. macrophylla varied significantly (p < 0.05) among the sites. Concentrations of the heavy metals in leaves of both species at each site did not vary significantly (p > 0.05) except for Cr in Site 2. The concentrations of the heavy metals in both soil and leaves of the two tree species were within the permissible limits except for Chromium.
Źródło:
World Scientific News; 2017, 87; 49-59
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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