Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Zivayi Chiguvare"'
Publikováno v:
Results in Chemistry, Vol 12, Iss , Pp 101923- (2024)
Iron-doped manganese oxides were synthesized using a co-precipitation method and thermodynamically characterized to demonstrate their potential as a thermochemical energy storage medium. Thermochemical energy storage, via chemical bonds that employ r
Externí odkaz:
https://doaj.org/article/02925ec29dcc42c394a73ef95df37b72
Autor:
Nicholas Kwarikunda, Zivayi Chiguvare
Publikováno v:
Journal of Renewable Energy, Vol 2021 (2021)
Evaluation of the maximum solar energy potential of a given area for possible deployment of solar energy technologies requires assessment of clear sky solar irradiance for the region under consideration. Such localized assessment is critical for opti
Externí odkaz:
https://doaj.org/article/cc07282a041241cabcc31c2aed095b75
Publikováno v:
Optical and Quantum Electronics. 52
Organic photovoltaic solar cells can offer advantages of being mechanically flexible and durable, large area devices, lightweight, made from a diversity of materials and low-cost fabrication. Their efficiency is, however, still too low for commercial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d24de6473b8db59e91b83c90bb0792fa
https://doi.org/10.1007/s11082-020-02516-0
https://doi.org/10.1007/s11082-020-02516-0
Publikováno v:
Optical and Quantum Electronics. 52
The asymmetric behavior in the dark current of any solar cell is essential for decoupling recombination and charge extraction for efficient charge collection. Therefore current density dependence on applied voltage can be used to investigate the comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50c28ff4b8330a6227a23d54a7e4270d
https://doi.org/10.1007/s11082-020-02362-0
https://doi.org/10.1007/s11082-020-02362-0
Publikováno v:
Energy Policy. 120:110-120
The paper deals with the challenges of energy access, efficiency and security as essential conditions to improve people's living in the Southern African region. It supports energy policies by providing material for an integrated assessment of alterna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e2b940067a9085deaf626a6ab142826
https://doi.org/10.1016/j.enpol.2018.05.023
https://doi.org/10.1016/j.enpol.2018.05.023
Autor:
Zivayi Chiguvare, Lapologang Magole, Alan C. Brent, Felipe Yunta Mezquita, François Diaz-Maurin, Cheddi Kiravu, Antonio Vázquez Barquero, Josephine Kaviti Musango, Zora Kovacic, Mario Giampietro, Mandu A. Gasennelwe-Jeffrey, Suzanne Smit, Gideon Gope, Ulpiano Ruiz-Rivas Hernando, Sandra G.F. Bukkens
Publikováno v:
International Journal of Sustainability in Higher Education. 19:622-641
Purpose This paper aims to present a new master’s programme for promoting energy access and energy efficiency in Southern Africa. Design/methodology/approach A transdisciplinary approach called “participatory integrated assessment of energy syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e4023dd7a0032573ef03745b7910642
https://doi.org/10.1108/ijshe-04-2017-0048
https://doi.org/10.1108/ijshe-04-2017-0048
Publikováno v:
Procedia Manufacturing. 7:630-638
Wind shear coefficients and roughness lengths over inland locations in southern Namibia were evaluated. Ten-minute average wind data collected at Korabib and Warmbad over a one year period were utilized. Mean values of wind shear coefficients are 0.1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8591ae5085a8d88762aab5d0be268fe7
Autor:
Zivayi Chiguvare, Al-Mas Sendegeya
Publikováno v:
Energy Procedia. 93:218-222
Education contributes to both short-term and long-term institutional building and supports human resource development. Both formal and informal education systems contribute to the development and dissemination of any technology. To ensure long-term s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc1f485a926a0d1536fb72fa11148dc1
https://doi.org/10.1016/j.egypro.2016.07.173
https://doi.org/10.1016/j.egypro.2016.07.173
Publikováno v:
Catalysis Letters; Jul2020, Vol. 150 Issue 7, p1942-1956, 15p
Autor:
Zikhona N. Tetana, Neil J. Coville, Susi Lindner, Mark H. Rümmeli, Zivayi Chiguvare, George Bepete
Publikováno v:
Carbon. 52:316-325
Nitrogen doped carbon nanotubes (N-CNTs) were synthesized using acetonitrile/alcohol mixtures as the nitrogen, carbon and oxygen sources using the chemical vapor deposition (CVD) method. XPS analysis of the CNTs produced from an acetonitrile/ethanol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dfddfcece6b5bec035b4307902b153f
https://doi.org/10.1016/j.carbon.2012.09.033
https://doi.org/10.1016/j.carbon.2012.09.033