Browsing Masters Theses and Dissertations [MEWES] by Title
Now showing items 28-47 of 74
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Groundwater recharge estimation and quality on the southern slopes of mount Kilimanjaro, Tanzania
(NM-AIST, 2021-07)This study was undertaken to estimate groundwater recharge rates using three methods (water table fluctuation (WTF), chloride mass balance (CMB) and soil moisture balance (SMB), as well as assessing the impact use of the ... -
High energy density materials based on fluorinated bridged trinitromethyl azo triazole derivatives: a quantum chemical study of thermodynamic and energetic properties
(NM-AIST, 2021-03)High energy density materials (HEDM) have gained extensive attention due to their energetic properties and safety issues. Nitro and fluoro groups, among others, have become viable substituents in the HEDM triazole framework ... -
The hydrochemical evolution and water balance of the emakat lake in the northern crater highland of Tanzania
(NM-AIST, 2023-07)This study aimed to ascertain the hydrochemical evolution and water balance of Emakat Lake, of the Empakaai Crater. Water and rock samples were collected from the lake and springs on the inner and outer crater rims, and ... -
Impact of climate change on groundwater recharge in lake Manyara catchment
(2020-08)This study aimed to estimate the groundwater recharge of the Lake Manyara catchment (7920 km2) in two different time intervals, historical 1988-2018 and near-future 2021-2050 climatic condition. This study analyzed the ... -
Impact of tobacco curing on the environment andsocio-economic aspects in the Urambo District
(NM-AIST, 2021-07)Despite the efforts that have been employed to reduce tobacco curing related deforestation in many countries including Tanzania. The economic importance of tobacco production on employment creation and foreign exchange ... -
Impacts of irrigation water quality, associated soils characteristics and on-farm practices on paddy yields
(NM-AIST, 2022-07)In this study, the impacts of irrigation water quality, soil characteristics and on-farm practices on paddy yields were investigated. Standard spectroscopy and spectrometry methods were used to analyze irrigation water ... -
Influence of duct configurations on the performance of solar-assisted heat pump dryer for drying tobacco leaves
(NM-AIST, 2023-08)nadequate storage facilities and preservation techniques lead to a decrease in the quality of agricultural products. Application of modern processing techniques has reduced post-harvest losses of agricultural crops. ... -
Influence of land use change on nitrate sources and pollutant enrichment in surface and groundwater of a growing urban areas
(NM-AIST, 2022-07)In the present study, three-year (1997, 2008 and 2017) satellite images as well as different hydro chemical parameters, nitrogen and oxygen isotopic composition of nitrate were used to examine the impacts of land use and ... -
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 ... -
Integration of the energy recovery step in municipal wastewater treatment chain: a case study of Moshi municipality, Tanzania
(NM-AIST, 2020-06)The energy demand which is expected to increase more worldwide has sparked the interest of researchers to find sustainable and inexpensive sources of energy. This study aims to integrate energy recovering step into ... -
Investigating the potential of producing eco-friendly liquid biofertilizer from domestic wastewater
(NM-AIST, 2023-08)Water bodies experience environmental challenges such as eutrophication due to poor management of domestic wastewater in developing countries. Meanwhile, the explosion in population of the world has resulted in a 1.8 ... -
Investigation of combination effect of natural dye (crocetin) and synthetic dye (indoline d205) for dye sensitized solar cells application
(NM-AIST, 2019-02)Dye-sensitized solar cells (DSSCs) are reckoned as emerging next-generation solar cells of a high potency. Co-sensitization of dyes facilitates widening of the light absorption range of a sensitizer and is one of possible ... -
Investigation of metallic iron for water defluoridation
(NM-AIST, 2021-12)Fluorosis is a significant ailment that affects millions of humans and animals, especially in low income countries. It has been the focus of past and present scientific endeavours to research and develop efficient and ... -
Lawsone, lawsone ether and bilawsone for dyesensitized solar cells application
(NM-AIST, 2020-02)Dye-sensitized solar cells (DSSCs) had turned up as a novel class of low-cost solar cells that can be fabricated easily compared to silicon solar cells. The DSSCs based on natural sensitizers are able to generate clean ... -
Naturally occurring metal oxides from rocks as capacitive deionization electrode materials for antibacterial activities
(NM-AIST, 2024-01)The availability of clean and safe drinking water remains a prominent challenge in most parts of the world. Drinking water should be free from harmful microorganisms, salt as well as other organic and inorganic ... -
Optimal design and analysis of a grid- connected hybrid renewable energy system using homer pro: a case study of Tumbatu island, Zanzibar
(NM-AIST, 2024-08)This study addresses the issue of quality electricity access on Tumbatu Island in Tanzania, with a specific focus on enhancing the high-voltage (HV) transmission line. While many studies concentrate on low-voltage (LV) ... -
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 ... -
Optimization of domestic biogas stove burner for efficient energy utilization
(NM-AIST, 2020-08)The inefficient indoor burning of fuel wood on traditional cook stoves generates pollutants, primarily carbon monoxide and many other human health-damaging emissions. It is from this risk that it is necessary to have an ... -
Performance analysis of standalone solar PV panel: case study of Arusha, Tanzania
(NM-AIST, 2019-03)The purpose of this study was to carry out experimental and theoretical performance analysis of standalone solar Photovoltaic (PV) panel in tropical region. The study concentrated on the influence of poor PV panel positioning ... -
Performance assessment of solar dryer integrated with heat energy storage system for food preservation
(NM-AIST, 2022-01)Solar energy is regarded as a clean form of energy because solar radiation can be transformed into heat energy for different applications such as heating water, generating power, cooking, and drying food products. The ...