Faculty of Engineering, Built Environment & Design (FEng / FBD): Recent submissions
Now showing items 1141-1160 of 1491
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Simulation of the Microclimate in Poultry Structures in Kenya
(Department of Environmental and Biosystems Engineering, 2011)A computer model based on the thermodynamic principles was developed for simulating the internal temperature responses in a naturally ventilated broiler chicken house. The model used transient thermal analysis with suitable ... -
Viscoelastic Properties of Bulk Groundnuts
(Department of Environmental and Biosystems Engineering, 2012)The groundnut, Arachis hypogaea Linn, samples were collected from the majorly grown areas of western Kenya to investigate the viscoelastic properties pertinent to grain handling, storage and processing. In particular, the ... -
Motor Vehicles Air Pollution in Nairobi, Kenya.
(2010)Air quality monitoring in most developing countries is not routinely conducted, and in some urban areas such information does not even exist, though signs of deteriorating air quality and health problems related to air ... -
Trends in Heavy Metals Levels in the Rivers of the Nairobi Region and Measures to Reduce them
(Department of Mechanical Engineering, 2010)The Nairobi, Ngong and Mathare are among the major rivers traversing the city of Nairobi, Kenya\'s capital city. The Ngong and Mathare rivers are both tributaries of the Nairobi River. The Nairobi river flows through the ... -
A framework for national assessment of land degradation in the drylands
(2011)Land degradation is a gradual, negative environmental process that is accelerated by human activities. Its gradual nature allows degradation to proceed unnoticed, thus reducing the likelihood of appropriate and timely ... -
A new approach for using time-series remote-sensing images to detect changes in vegetation cover and composition in drylands
(2011)Vegetation cover and composition are important aspects of the dryland environment because they provide livelihood to humans and also protect soil resources against erosion. Currently, scientists are advancing various ... -
First National Communication of Kenya to the Conference of Parties of the United Nations Framework Convention on Climate Change
(2002)This paper discusses the risks that the city of Mombasa faces from the direct and indirect impacts of climate change. Mombasa is Kenya's second largest city and has more than 700,000 inhabitants. It is the largest seaport ... -
Finite-element analysis of non-uniform, lossy transmission lines
(1997)This paper presents an overview of the transmission-line matrix (TLM) method of analysis, describing its historical background from Huygens's principle to modem computer formulations. The basic algorithm for simulating ... -
Single-span, Continuous and Slender Deep Beams Made of High Strength Concrete
(1994)The current design recommendations for concrete deep beams given in the ACI Code, Canadian Code, CEB-FIP Model Code, CIRIA Guide-2, etc., are based on research results on normal strength concrete. As such, these design ... -
A Local Approach Methodology for the Analysis of Uncracked Tubular Joints.
(2004)In this study, the finite element method (FEM) is applied on a welded tubular T-joint, in order to analyse stress distribution in the vicinity of the weld fillet. The weld has been modelled all around the joint. A notch ... -
Determination of stress characteristics at Connections of Welded Members using Finite Element Method
(2004)Tubular members are used in various structural members. They have a pleasant effect and good aesthetic values. They can be used in large roof structures, offshore rigs, pressure vessels, etc. The connection between tubular ... -
Textile concrete: Preliminary mechanical characterization of a new ductile material.
(2003)The mechanisms of ageing and environmental degradation involving exposure to cyclic hot/cold temperatures, wetting/drying movements as well as exposure to a carbon dioxide (CO2)-rich environment, have different effects on ... -
Evaluation of pseudo-ductile behavior of textile concrete.
(2003)The influence of fibers on the fatigue cracking resistance of asphalt concrete is investigated using fracture energy. Nylon, a popular facing yarn of carpets, is used for the actual recycled carpet fibers in asphalt pavement. ... -
Textile concrete provides special architectural and permanent shuttering opportunities.
(2004)High Performance Fibre Reinforced Cementitious Composites (HPFRCC) are characterized by a stress–strain response in tension that exhibits strain-hardening behaviour accompanied by propagation of multiple cracks. This process ... -
An appropriate specimen geometry for direct tensile testing of textile concrete.
(2006)While the development of TRC (Textile Reinforced Concrete) in recent years is undeniable, validated experimental protocols and standards are slow to take hold. By drawing judiciously from previous studies, this work aims ... -
Effect of environmental exposure on the microstructure of textile concrete.
(2008)This paper presents the results of recent experimentation performed to study time-dependent changes in the mechanical performance of textile reinforced concrete (TRC) made with AR glass fibre and to specify the decisive ... -
Evaluation of toughness of textile concrete:
(2009)High Performance Fibre Reinforced Cementitious Composites (HPFRCC) are characterized by a stress–strain response in tension that exhibits strain-hardening behaviour accompanied by propagation of multiple cracks. This process ... -
Poisoning of Sulfate Reductions with Molybdenum in Anaerobic Reactors Fed Glucose
(1990)Several researchers have used molybdate (MoO42−) for the selective inhibition of sulphate reducing bacteria (SRB) in anaerobic digestion. The feasibility of using MoO42− for the control of sulphate reduction in biological ...
