Research Articles [MEWES]: Recent submissions
Now showing items 441-460 of 543
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Pangani River Basin over time and space: On the interface of local and basin level responses
(Elsevier, 2011-09)As the pressure on the water resources mounts within a river basin, institutional innovation may occur not as a result of a planned sequence of adjustments, but arising out of the interplay of several factors. By focusing ... -
Understanding the Emergence and Functioning of River Committees in a Catchment of the Pangani Basin, Tanzania
(Water Alternatives, 2011-06)In this paper we explore the emergence and functioning of river committees (RCs) in Tanzania, which are local water management structures that allocate and solve water conflict between different water users (smallholder ... -
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 ... -
Differentiated Access: Challenges of Equitable and Sustainable Groundwater Exploitation in Tanzania
(Water Alternatives, 2018)Groundwater is an important resource for a large share of the global population and economies. Although groundwater dependence in most sub-Saharan African countries is relatively low at the national level, localized ... -
Transition Management for Improving the Sustainability of WASH Services in Informal Settlements in Sub-Saharan Africa—An Exploration
(MDPI, 2018-11-05)This paper explores how transition management processes can be designed to address the unsustainability of water, sanitation, and hygiene (WASH) services in informal settlements in cities in Sub-Saharan Africa. The ... -
Re-introducing Politics in African Farmer-Led Irrigation Development: Introduction to a Special Issue
(Water Alternatives, 2019-02)This introduction is a reflexive piece on the notion of farmer-led irrigation development and its politics. It highlights the way the varied contributions to the Special Issue support a shared perspective on farmerled ... -
What Proportion Counts? Disaggregating Access to Safely Managed Sanitation in an Emerging Town in Tanzania.
(MDPI, 2019-09-10)Sustainable Development Goal (SDG) 6.2 sets an ambitious target of leaving no-one without adequate and equitable sanitation by 2030. The key concern is the lack of local human and financial capital to fund the collection ... -
Estimating groundwater recharge on the southern slope of Mount Kilimanjaro, Tanzania
(Springer Nature Switzerland AG., 2019-12-03)This paper used three methods namely: water-table fluctuation (WTF), soil moisture balance (SMB), and chloride mass balance (CMB) to estimate groundwater recharge in a degraded Kahe catchment located on the southern slope ... -
Neither modern nor traditional: Farmer-led irrigation development in Kilimanjaro Region, Tanzania
(Elsevier B.V., 2019-04)The debate around what kind of irrigation, large- or small-scale, modern or traditional, best contributes to food security and rural development continues to shape irrigation policies and development in the Global South. ... -
Supersalts Na2AlX5 (X = F, Cl): Quantum Chemical Study of the Structure, Vibration Spectra and Thermodynamic Properties
(Current Journal of Applied Science and Technology, 2017-06-27)Theoretical investigation, prediction and design of novel supersalts Na2AlX5 (X = F, Cl) have been performed. The formation of the supersalts was considered through association reactions between different building blocks: ... -
Theoretical study of the structure and stability of the Na2Cl+, NaCl 2−, Na3Cl 2+, and Na2Cl 3− ions
(Springer Nature Switzerland AG., 2007-11)The geometrical parameters, normal vibration frequencies, and thermochemical characteristics of the Na2Cl+, NaCl 2−, Na3Cl 2+, and Na2Cl 3− ions in saturated vapors over sodium chloride were calculated by the ab initio ... -
Calculation of the Thermodynamic Characteristics of Ions in Vapor over Sodium Fluoride
(Springer Nature Switzerland AG., 2008-01)The geometric parameters, normal vibration frequencies, and thermochemical characteristics of the ions present in vapor over sodium fluoride, Na2F+, Na3F 2+, NaF 2−, and Na2F 3−, were calculated ab initio by the Hartree-Fock ... -
Structural and thermodynamic characteristics of ionic associates in vapors over sodium bromide and iodide
(Nature Switzerland AG., 2010-05-16)Nonempirical methods are used to calculate the geometric parameters, the frequencies of normal vibrations, and thermochemical characteristics of ions existing in saturated vapors over sodium bromide and iodide: Na2X+, NaX ... -
Theoretical study of properties of Cs2Cl+, CsCl2−, Cs3Cl2+, and Cs2Cl3− ions: Effect of Basis set and Computation Method
(Rwanda Journal, 2012-07)Theoretical study of properties of Cs2Cl+, CsCl2−, Cs3Cl2+ and Cs2Cl3− ions has been performed using the density functional theory (DFT/B3LYP) and the second order Møller-Plesset perturbation theory (MP2). Two triple-zeta ... -
Theoretical Study of Structure, Vibration Spectra and Thermodynamic Properties of Cluster Ions in Vapors over Potassium, Rubidium and Cesium Chlorides
(Springer Nature Switzerland AG., 2011-10-04)The geometrical structure, the frequencies of normal vibrations, and the thermodynamic characteristics of tri- and pentaatomic cluster ions M2Cl+, MCl 2 − , M3Cl 2 + , and M2Cl 3 − (M = K, Rb, or Cs) existing in saturated ... -
Structure and thermodynamic properties of positive and negative cluster ions in saturated vapour over barium dichloride
(Taylor & Francis online, 2013-03-13)Geometrical structure, vibration spectra, and enthalpies of dissociation have been investigated for the ions BaCl3−, Ba2Cl3+, Ba3Cl5+, and Ba4Cl7+ which were detected earlier in the saturated vapour over BaCl2. Quantum ... -
Structure and vibrational spectra of cluster ions over rubidium iodide by computational chemistry
(IEEE, 2015-03-05)The properties of Rb 2 I + , RbI 2 - , Rb 3 I 2 + and Rb 2 I 3 - ions were studied using two quantum chemical methods, DFT and Møller-Plesset perturbation theory of the 2 nd order. The effective core potential with Def2-QZVP ... -
Theoretical Study of Cluster Ions Existing in Vapours over Cesium Bromide and Iodide
(British Journal of Applied Science & Technology, 2015-05-13)The properties of ions Cs2X+, Cs3X2+, CsX2−, and Cs2X3− (X = Br or I) have been studied using the density functional theory and Möller–Plesset perturbation theory of the 2nd and 4th order. For all species the equilibrium ... -
Interactions Between Sodium Ion and Constituents of Chitosan: DFT Study
(Science Publishing Group, 2015-09-03)Glucosamine and acetylglucosamine are the constituents of chitosan and chitin natural biopolymers. In the present study, the structure and properties of the D-glucosamine monomer (A), N-acetylglucosamine monomer (B), and ... -
Vibrational and Electronic Spectra of Natural Dyes Constituents for Solar Cell Application: DFT and TDDFT Study
(Science Publishing Group, 2015-09-09)Selected constituents of natural dyes, phenol, 1,2-benzoquinone, 1,4-benzoquinone, 1,4-naphthoquinone, and 9,10-anthraquinone have been studied theoretically using the density functional theory and time-dependent density ...
