Browsing Materials, Energy, Water and Environmental Sciences by Title
Now showing items 41-60 of 579
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Assessment of levels and distribution of progesterone in receiving waters and wastewaters in the vicinity of Arusha city,Tanzania
(NM-AIST, 2020-12)This study aimed at investigating the levels and distribution of progesterone in receiving waters and wastewaters in Arusha, a fast-growing urban area and third largest city in Tanzania. Also, intend to assess the ... -
Assessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern Tanzania
(Springer US, 2023-09)Elemental tracer concentrations of copper, lead, nickel and zinc, were assessed in the muscles of Oreochromis amphimelas and Clarias gariepinus from Lake Manyara, Tanzania, to evaluate their safety to consumers, specifcally ... -
Assessment of sources and transformation of nitrate in groundwater on the slopes of Mount Meru, Tanzania
(Springer, 2016-01-25)The stable isotope compositions of nitrogen-nitrate (15N-NO3) and oxygen-nitrate (18O-NO3), and concentration of nutrients (NO3- NH4+, NO2 -, PO4 3- ) for water samples collected from springs, shallow wells and boreholes ... -
Assessment of Technology Options Addressing Agricultural Production Constraints in Western Kenya
(Greener Journal of Agricultural Sciences, 2013-03-29)Poor soil fertility and weed infestation are among major constraints facing agricultural production in Western Kenya. Recommended technologies differ in resource requirement and their effectiveness ... -
Assessment of the impact of groundwater pumpage on water supply sustainability in Zanzibar, Tanzania
(Springer Nature Switzerland AG., 2020-10-23)In the present study, a 42-year record of rainfall and temperature from Airport and a 43-year rainfall record from Kizimbani meteorological station were analyzed to understand how these climatic variables are affecting ... -
Assessment of the impacts of groundwater pumpage on the future water supply sustainability in Zanzibar, Tanzania
(NM-AIST, 2020-12)In the present study, a 42-year record of rainfall and temperature from Airport and a 43-year rainfall record from Kizimbani meteorological station were analyzed to understand how these climatic variables are affecting ... -
Assessment of trace and radioactive elements risk in the artisanal and small-scale gold mining sector
(NM-AIST, 2022-05)Currently, the mining industry in Tanzania faces significant challenges including a significant policy research gap. In this work, different indices were applied to assess the health risk of people living and working ... -
Assessment of variation in marginal productivity value of water in paddy farming systems in times of water stress
(MDPI, 2022-10-29)Global projections show that increases in agriculture water productivity (AWP) by 30 and 60% in rain-fed and irrigated agriculture, respectively, are required to ensure food security in the period 2000–2025. In sub-Saharan ... -
Assessment of water quality variation in rivers through comparative index technique and its reliability for decision making
(Tanzania Journal of Science, 2018)The National Sanitation Foundation (NSF) and Weighed Arithmetic Index (WAI) methods for water quality index (WQI) have been studied to evaluate their reliability in water quality assessment in rivers. Water samples were ... -
Avoiding the Use of Exhausted DrinkingWater Filters: A Filter-Clock Based on Rusting Iron
(MDPI, 2018-05-02)Efficient but affordable water treatment technologies are currently sought to solve the prevalent shortage of safe drinking water. Adsorption-based technologies are in the front-line of these efforts. Upon proper design, ... -
Below the Radar: Data, Narratives and the Politics of Irrigation in Sub-Saharan Africa
(Water Alternatives, 2021-06)Emerging narratives call for recognising and engaging constructively with small-scale farmers who have a leading role in shaping the current irrigation dynamics in sub-Saharan Africa. This paper explores whether new ... -
Betanidin isomerisation and decarboxylation, thermodynamic and charge transfer dye properties towards dye sensitised solar cells application
(John Wiley & Sons, Inc., 2021-01-25)Along with attractiveness of natural dyes for solar technologies, the instability is a well‐known drawback of the dyes, which impedes their usage for dye sensitised solar cells (DSSCs) application. The planar isomer appeared ... -
Biodiesel production by sulfated mesoporous titania–silica catalysts synthesized by the sol–gel process from less expensive precursors
(Elsevier, 2012-11-21)A sulfated titania–silica composite (S-TSC) was obtained through surface modification of mesoporous titania–silica composite synthesized using less expensive precursors; titanium oxychloride and sodium silicate as titania ... -
Biodiesel production from parinari curatellifolia seeds oil using basic heterogeneous catalyst derived from tamarindus indica fruit shells
(NM-AIST, 2019-03)Biodiesel is an alternative fuel to mineral diesel. It is produced from abundant and easily available renewable resources of animal fats and vegetable oil. However, the cost of oil feedstock is the major obstacle towards ... -
Biogas slurry derived mesoporous carbon/metal oxides composites for supercapacitors application
(NM-AIST, 2017-12)With the increasing utilities of intermittent renewable energies, hybrid electric vehicles and portable electronic devices, supercapacitors have been identified as one of the solution for energy storage since they can ... -
Biogas-slurry derived mesoporous carbon for supercapacitor applications
(Elsevier Ltd., 2017-09)This study reports on the transformation of biogas slurry into mesoporous carbon for supercapacitor electrodes. Pore structures have been modified by altering activation time, temperature and KOH/carbon mass ratio. The ... -
Biomass-based carbon electrode materials for capacitive deionization: a review
(Springer Nature Switzerland AG., 2019-06-27)Capacitive deionization (CDI) is a promising water purification technology which works by removing salt ions or charged species from aqueous solutions. Currently, most of the research on CDI focuses on the desalination of ... -
Building Bridges between the Sciences and the Arts of Water Co-operation through Collective Action – Reflections
(Elsevier, 2014)This reflection article highlights some of the science that underpins our understanding of cooperation over shared water resources. Power dynamics, hegemony, negotiation theory, social psychology and justice, international ... -
Building Climate Change Adaptation and Resilience through Soil Organic Carbon Restoration in Sub-Saharan Rural Communities: Challenges and Opportunities
(MDPI, 2021-10-02)Soil organic carbon (SOC) is widely recognised as pivotal in soil function, exerting important controls on soil structure, moisture retention, nutrient cycling and biodiversity, which in turn underpins a range of provisioning, ... -
Building partnership for participatory sanitation and hygiene planning: lessons and experience from Tanzania
(WEDC International Conference, 2018-10-29)