Masters Theses and Dissertations [MEWES]: Recent submissions
Now showing items 61-68 of 68
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Synthesis of mesoporous carbon from non-biodegradable plastic bags for water purification: methylene blue removal
(NM-AIST, 2017-12)In the present work, the mesoporous carbon materials with pore diameter of 14.2 nm and specific surface areas of 15.18 (m2g-1) identified by Brunauer, Emmett, and Teller (BET) were synthesized from non-biodegradable ... -
Optimization of biogas production process in solid state digesters: option for minimizing deforestation in dry areas
(NM-AIST, 2019-03)Questionnaire survey, satellite images of 1987, 1997, 2002 and 2017 were used to assess energy sources, demand and the impact of fuel wood use to forest cover changes in Meru and Mwanga districts. The major energy sources ... -
Inhibition of aluminium corrosion using carica papaya extracts in acidic media (sulphuric acid and phosphoric acid)
(NM-AIST, 2017-12)Corrosion inhibition of aluminium using Carica papaya leaves extracts in 1M H2SO4 and IM H3PO4 was investigated under different temperatures (30, 40 and 500C) and concentrations (from 20-100 v/v %). The inhibitor was found ... -
Risk of heavy metals exposure through consumption of rice from Kahama and Geita districts
(2016-04)Heavy metals exposure is associated with various human health problems. This research aimed at determining the levels of heavy metals in paddy soils and in polished rice from villages around the artisanal gold mining areas ... -
Ecosystem services for crop protection in bean fields in Moshi rural, along the slopes of Mt. Kilimanjaro Northern Tanzania
(2016-02)The natural ecosystem, in and around bean fields potentially offer beneficial services that assist bean productivity. This study was conducted to investigate the distribution of beneficial invertebrates and plants and ... -
Theoretical study of structural and thermodynamic properties of gaseous metal hydrides m2xh4 (m = li, na; x = be, mg)
(2016-04)This study aimed to explore the properties of the complex hydrides which seem to be the promising candidates for hydrogen storage materials. The geometrical structure, vibrational spectra and thermodynamic characteristics ... -
The use of pesticidal plants as environmental friendly Practice for field and storage pests’ management in Common beans and cowpeas
(2016-04)Infestation caused by insect pests on legumes has been witnessed to cause losses in the fields during cultivation as well as during storage. Use of pesticidal plants is seen as an alternative option although it is not used ... -
Constraints and opportunities for coffee productivity on the slopes of mt. Kilimanjaro in the face of climate change
(2016-04)Limited scientific information on decreasing productivity of Arabica coffee (Coffea arabica L.) in Tanzania has been observed. Poor agricultural practices, pests, diseases and climate change are among important factors ...