Browsing Faculty of Engineering, Built Environment & Design (FEng / FBD) by Title
Now showing items 1050-1069 of 1463
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Radiactivity and dose assessment of limestone samples from Kitui South Limestone Deposits-Kenya
(2010)Activity concentrations of 226Ra, 232Th and 40K of limestone samples collected from Kitui South have been measured using Hyper Pure Germanium (HPGe) detector gamma ray spectrometry. A total of 48 samples were collected ... -
Radioactivity in Surface Soils around the Proposed Sites for Titanium Mining Project in Kenya
(Department of Physics, Kenyatta University, Nairobi, Kenya;Department of Physics, Northern India Engineering College, Babu Banari Das University, Nairobi, Kenya;Institute of Nuclear Science and Technology, University of Nairobi,Department of Physics, University of Agriculture, Abeokuta, Abeokuta, Nigeria, 2011)Radioactivity measurements were carried out around Maumba and Nguluku villages, two of the proposed sites for tita-nium mining in the coastal area of Kenya. Samples of surface soils were analyzed using a HPGe gamma ... -
Radiometric Characteristics of Artisanal Coltan Ore Extraction and Processing in Rwanda
(2010)The use of products containing naturally occurring radioactive materials (NORM) such as minerals, quarry, sand, clays, etc is widespread in Rwanda, but they are not subject to radiological quality control. This paper ... -
Rahani: A Unique Commercial Land Tenure Arrangement Amongst the Digo of Kenya's Coast
(2008)Land ownership, distribution, utilisation and exchange amongst the Digo people of Kenya's lower Coast is done through both formal systems and informal arrangements, 'Rahani'is an informal arrangement that allows landowners ... -
Rain cell sizing for the design of high capacity radio link systems in South Africa
(2011)This paper investigates the influence of critical raindrop diameters on the specific rain attenuation in Durban (29°52'S, 30°58'E), South Africa. The total rainfall attenuation is evaluated by integrating over all the ... -
Rainwater engineering
(University of Nairobi,College of Architecture and Engineering, 2009)This book describes four types of indigenous water retention structures used in East Africa. These structures are the Berkad tank, the Charco dam, sand wiers and hillside water retention ditches. -
Rainwater Harvesting for Crop Production in Semi-arid Areas
(2003)This paper presents an analysis of economics of rainwater harvesting by poor farmers in Tanzania. A questionnaire was used to survey 120 households to obtain information on the performance of their enterprises over 6 years ... -
Rainwater Harvesting for Improved Livelihoods
(2003)For the last two years, GHARP has, with a financial grant from USAID, implemented a regional project whose overall objective was to identify and evaluate the performance of RWH systems in the GHA with the aim of promoting ... -
A rapid MRI reconstruction method based on compressive sampling and concomitant artifacts suppression
(University of Nairobi, 2018)In this paper, a proposed rapid Magnetic Resonance Imaging (MRI) reconstruction method is presented. The method is based on the compressibility of the images in the wavelet domain and suppression of the resulting artifacts. ... -
Rate And Reliability Implementation Scheme For Polar Codes,SATNAC2012,EastLondon,SA
(University of NairobiDepartment of Electrical & Information Engineering, 2012)Communications channel coding that achieves capacity is implemented and solution suggested for selection of the optimal design parameter to achieve capacity:Rate or reliability of channels. -
Rating System in Kenya: Evolution, Constraints and Potentials
(College of Architecture and Engineering, University of Nairobi, 1996) -
The rationalisation of residential densities in an inner city area of Nairobi
(School of Built Environment, University of Nairobi, 2001-09)The need for a rational land utilisation in the inner city areas of Nairobi is becoming increasingly recognised in the urban development. In particular, it is made more urgent by the rapidly increasing levels of urbanisation ... -
The Rationalisation of Residential land Utilisation in the Inner City Areas: A Case Study of Bahati Estate in Nairobi, Kenya
(University of Nairobi,Architecture and Building Science, 2011) -
Re-alignment of a guyed tower
(2008)Towers are typical structures that can be found in many urban and rural landscapes the world over. From their basic design, they are usually exposed to severe environmental loads. It is therefore prudent to carry out ... -
Reaction invariants and their importance in the analysis of eigenvectors, state observability and controllability of the continuous stirred tank reactor
(University of Nairobi, 1974-09)Two different projection operators are found, projecting the state space of a continuous stirred tank reactor (C.S.T.R.) dynamic model on the space of asymptotically invariant states (or on the space of true invariant ... -
Real Estate Sub-markets
(1993)The idea that location is important in real estate economics is not new. However, the spatial dimension of real estate data is not always taken into account in traditional real estate models. Spatial econometrics is a tool ...