Browsing Materials, Energy, Water and Environmental Sciences by Title
Now showing items 189-208 of 539
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First Report of the Co‑occurrence of Cylindrospermopsin, Nodularin and Microcystins in the Freshwaters of Lake Victoria, Tanzania
(Scientific Research Publishing, 2020-07-26)Abstract There is a global concern regarding the increase of cyanotoxins in freshwater and their potential effects on human health. The existence of multiple toxins in freshwater can result in an increased risk of their ... -
Fish bladder-based activated carbon/Co3O4/TiO2 composite electrodes for supercapacitors
(Elsevier B.V., 2019-06-15)Cobalt oxide/titanium dioxide/activated carbon (Co3O4/TiO2/Ac) composite was synthesized using simple sol-gel method before annealing at 300 °C. Fish bladder derived porous carbon used for the composite was synthesized by ... -
Fish bladder-based activated porous carbon/co3o4/tio2 composite electrodes for supercapacitors
(NM-AIST, 2020-02)Supercapacitors as energy storage devices depend on electrode materials, electrolyte and conductive additives. In relation to the above, this master’s dissertation specifically provides a scientific understanding and ... -
Fish Diversity in Relation to Littoral Habitats in Three Basins of Lake Kivu (East Africa)
(MDPI, 2023-09-12)In total, 28 of the 29 fish species reported from the Lake Kivu basin occur in the littoral zone of the lake, but information about their structure, occurrence, and the habitats affecting their distribution is largely ... -
Fish Swim Bladder-Derived Porous Carbon for Defluoridation at Potable Water pH
(Scientific Research Publishing Inc, 2016-10-25)The levels of fluoride in various ground water sources in East Africa are above the World Health Organization upper limit of 1.5 mg/L. Research on diverse defluoridation technologies has proven that adsorption stands out ... -
Fisheries Statistics for Lake Victoria, Tanzania
(Springer Nature Switzerland AG., 2017-11-29)Time series fisheries statistics data mainly from Frame Surveys, Catch Assessment Surveys and Fisheries Annual Statistics Reports for Lake Victoria from 1967–2016 were collected from the Fisheries Development Division in ... -
The fluid nature of water grabbing: the on-going contestation of water distribution between peasants and agribusinesses in Nduruma, Tanzania
(Springer Nature Switzerland AG., 2015-08-20)This article contributes to the contemporary debate on land and water grabbing through a detailed, qualitative case study of horticultural agribusinesses which have settled in Tanzania, disrupting patterns of land and water ... -
Fluoride Sorption Using Zirconium ion-impregnated Macadamia Nutshell-Derived Biochar from Aqueous Solution: Adsorption Isotherms and Kinetic Modeling
(Research Article, 2022-11-26)Zirconium ion-impregnated macadamia nutshell biochar (ZMNB) was synthesized and tested for its fluoride sorption capacity by exploiting batch experiments. Four temperatures (300, 400, 500, and 600 ℃) were used to pyrolyze ... -
Fluoride uptake and translocation in food crops grown in fluoride-rich soils.
(John Wiley & Sons, Inc., 2020-06-21)BACKGROUND The East African Rift Valley (EARV) area is characterized by an intense volcanic activity, which largely influences the nature of soils, ground and surface waters causing a transfer of fluoride from volcanic ... -
Fluoride Variations in Rivers on the Slopes of Mount Meru in Tanzania
(Hindawi, 2018-01-23)This study reports the variations of fluoride ions in rivers on the slopes of Mount Meru in the northern part of Tanzania. More than 318 water samples were collected from Temi, Nduruma, Tengeru, andMaji ya Chai Rivers in ... -
Fluoride Variations in Rivers on the Slopes of Mount Meru in Tanzania
(Hindawi, 2018-01-23)This study reports the variations of fluoride ions in rivers on the slopes of Mount Meru in the northern part of Tanzania. More than 318 water samples were collected from Temi, Nduruma, Tengeru, and Maji ya Chai Rivers in ... -
Formalization of water allocation systems and impacts on local practices in the Hingilili sub-catchment, Tanzania
(Taylor & Francis online, 2013-05-31)Water scarcity caused by increased demands often leads to competition and conflict over water in many river catchments in Sub-Saharan Africa. At the local level, water users have in many places been able to solve water ... -
Functional impacts of polyaniline in composite matrix of photocatalysts: an instrumental overview
(Royal Society of Chemistry, 2023-05-22)The challenges associated with photocatalysts including their agglomeration, electron–hole recombination and limited optoelectronic reactivity to visible light during the photocatalysis of dye-laden effluent make it necessary ... -
Gaseous complex hydrides NaMH and NaMH (M = B, Al) as hydrogen storage materials: a quantum chemical study.
(Springer Nature Switzerland AG., 2020-12-17)Metal hydrides are feasible for energy storage applications as they are able to decompose with hydrogen gas release. In this work, gaseous complex sodium hydrides, NaMH and NaMH (M = B or Al), have been investigated using ... -
Geochemical Distribution of Trace Elements in Groundwater from the North Mara Large-Scale Gold Mining Area of Tanzania
(Ground Water Monitoring and Remediation, 2016-05)The infl uence of large-scale mining operations on groundwater quality was investigated in this study. Trace element concentrations in groundwater samples from the North Mara mining area of northern Tanzania were analyzed. ... -
Geological and hydro-geochemical assessment of fluorine around mount Meru, northern Tanzania
(NM-AIST, 2020-03)Areas around Mt. Meru are among the areas in Tanzania where climate change, population growth and high fluoride levels in much of the water sources lower availability of water for domestic ... -
Geometrical Structure, Vibrational Spectra and Thermodynamic Properties of Chitosan Constituents by DFT Method
(Science Publishing Group, 2014-08-10)The interaction between glucosamine molecules has been studied theoretically. The geometrical structures of monomer (A), dimer (AA) and trimer (AAA) molecules of glucosamine were optimized and vibrational spectra were ... -
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 ... -
Growth, mortality, exploitation rate and recruitment pattern of Octopus cyanea (Mollusca: Cephalopoda) in the WIO region: A case study from the Mafia Archipelago, Tanzania
(Western Indian Ocean Journal of Marine Science, 2021-08-24)Octopus cyanea is a commercially important cephalopod in the Western Indian Ocean (WIO) region, but scientific information to inform management strategies for the species is limited. A study was conducted in 2014, 2015, ... -
Guanidinium tin halide perovskites: structural, electronic, and thermodynamic properties by quantum chemical study
(Springer Nature Switzerland AG., 2021-04-17)The orthorhombic phase of guanidinium tin halide perovskites C(NH2)3SnX3, X = Cl, Br, I has been studied by quantum chemical method. The lattice parameters are optimized to obtain the minimum energy using the density ...