Faculty of Science & Technology (FST): Recent submissions
Now showing items 681-700 of 4283
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Integrating life cycle approaches to African national development policies: considering the institutional dimension of industrial ecology
(2004)This paper considers developments in the area of industrial ecology applications and public policy, and the need to facilitate the proliferation of life cycle approaches in Africa through national development policies. It ... -
Vulnerability to climate change in three hot spots in Africa and Asia: key issues for policy-relevant adaptation and resilience-building research
(2015)Providing sound evidence to inform decision-making that considers the needs of the most vulnerable to climate change will help both adaptation and development efforts. Such evidence is particularly important in climate ... -
Towards Sustainable Charcoal Production and Use: a Systems Approach
(2002)The majority of African households will continue depending on traditional fuels to meet their daily energy needs for many decades to come. In particular, the demand for charcoal in most countries in the region continues ... -
Greenhouse gas emissions and energy balances of jatropha biodiesel as an alternative fuel in Tanzania
(2013)This paper evaluates GHG emissions and energy balances (i.e. net energy value (NEV), net renewable energy value (NREV) and net energy ratio (NER)) of jatropha biodiesel as an alternative fuel in Tanzania by using life cycle ... -
Impacts of greenhouse gas and particulate emissions from woodfuel production and end-use in sub-Saharan Africa
(2004)Household energy in sub-Saharan Africa is largely derived from woodfuels burned in simple stoves with poor combustion characteristics. These devices emit products of incomplete combustion [PICs] that both damage human ... -
Draft final report of the LCM definition study
(2003)Life Cycle Management is a new framework to meet our present global challenges towards more sustainable patterns of production and consumption. In this context, LCM is offering a platform for the private and public sector. ... -
1-Power normal and 1-Power quasinormal operators
(2014)In this paper, 1-Power normal and 1-Power quasinormal operators are introduced. Amongst other results, it is proved that, 1-Power normal operators have translation invariant property and that, if any operator and its adjoint ... -
Berger-Shaw inequalityfor n-Power quasinormal and w-hyponormal operators
(2014)Every reducible operator can be decomposed into normal and completely non-normal operators. Unfortunately, there are several non normal operators which are irreducible. However, every operator whose self-commutator is ... -
An Interplay Between n-Power quasinormal and w-Hyponormal operators
(2014)In this monograph, via Aluthge transformations, it is proved that every n-Power normal operator is normaloid and through paranormality, w-hyponormal operators are shown to be indepedent from n-Power normal, hence from ... -
Drought monitoring in Kenya: A case of Tana River County
(2014-07)Standardized Precipitation Index (SPI) is used to assess past, present and projected drought conditions while Mann Kendall trend test and coefficient of variability is used for trend analysis. Observed data from National ... -
Anaerobic digestion of sewage wastewaters with sludge and rumen fluid
(2014-08)Anaerobic digestion was conducrcd at mesophilic (31'e) Gild thermophilic (S5"C) conditions using sewage wasteWaTers as the substrate and sludge and/or rum ell[luid as (he inoculum; with a view to optimis» biogcs production. ... -
Effect of Ga Incorporation and Film Thickness on the Optical Properties of as-Deposited Amorphous GaxSel-x Thin Films
(2014)Abstract: Flash evaporated amorphous Ga.Se i., (x = 0, I, 2, 3, and 4 atomic %) on glass substrates have bee. investigated within a 500nm-I500nm spectral range. Film thicknesses explored were; 200±IOnm, 265±IOnflJ. 330±IOnm, ... -
Evaluating MERIS-Based Aquatic Vegetation Mapping in Lake Victoria
(2014)Delineation of aquatic plants and estimation of its surface extent are crucial to the efficient control of its proliferation, and this information can be derived accurately with fine resolution remote sensing products. ... -
On reflectionless equi-transmitting matrices
(2014)Reflectionless equi-transmit.ting unitary matrices are studied in connection to matching conditions in quantum graphs. All possible such matrices of size G are described explicitly. It is shown that such matrices form 30 ... -
Using spectral subspaces to improve infrared spectroscopy prediction of soil properties
(2015)We propose a method for improving soil property predictions using local calibration models trained on datasets in spectral subspaces rather that in a global space. Previous studies have shown that local calibrations based ...