Faculty of Engineering, Built Environment & Design (FEng / FBD): Recent submissions
Now showing items 1201-1220 of 1491
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Reduction of Peak-to-Average Power Ratio in OFDM Radio Systems
(2012)The authors propose a very effective and flexible peak power reduction scheme for orthogonal frequency division multiplexing (OFDM) with almost vanishing redundancy. This new method works with arbitrary numbers of subcarriers ... -
Resistance to airflow through shelled corn
(1969)Bulk seed in store is often aerated for preservation purposes. The design of the associated fan and duct system is dependent upon estimation of the pressure difference across the bulk for a given airflow and duct and store ... -
Farm equipment Deveiopment for Small Holders in Semiarid Areas of Southeastern and Central Africa
(1985)Before the arrival of European agricultural technology, technologies addressing the need for more efficient capture and utilisation of resources were being developed in Africa. Land invasions and displacements, the ... -
Methodological Guidelines for Agricultural mechanisation strategy formulation
(1994)The economies of most countries in Eastern and Southern Africa are going through a dynamic transformation from centralized to market oriented economies. The current emphasis on private sector development accompanied by ... -
National Agricultural Mechanisation Strategy Formulation for Kenya
(1994)There is an increasing concern among policy-makers in many countries about national 'competitiveness' and the technological dynamism required to be competitive. In developing countries, industrial and technological performance ... -
Conservation tillage Equipment productivity quantified
(2004)Every production practice, including conservation tillage, has positive or negative environmental consequences that may involve air, land, water, and/or the health and ecological status of wildlife. The negative impacts ... -
Conservation Tillage and Food production in Semiarid Tropics of Africa
(2004)Before the arrival of European agricultural technology, technologies addressing the need for more efficient capture and utilisation of resources were being developed in Africa. Land invasions and displacements, the ... -
Measurement of Piezoelectric Coefficients Using Double Beam Laser Interferometry
(1991)Interferometric measurements of electric field‐induced displacements in piezoelectric thin films using single‐beam and double‐beam optical detection schemes are reported. It is shown that vibrational response measured with ... -
Grain Size Effects in Barium Titanate
(1993)Due to its high crystallinity and purity, hydrothermal powder was used to study the effects of grain size and density on the dielectric properties of BaTiO3. Curie-Weiss analysis was used to analyze the results as porosity ... -
Electrostriction Measurements in Diffuse Phase Transition Materials and Perovskite Glass Ceramics
(1994)Materials with diffuse phase transitions are of much interest for applications in very smart systems. The main advantage they have over conventional materials is the tunable nature of their nonlinear properties such as ... -
Ultra-High Strain Ceramics with Multiple Field-Induced Phase Transitions
(1994)The induced polarization and longitudinal strain behavior of lanthanum- and titanium-modified antiferroelectric lead zirconate ceramics were measured as functions of electric field as high as 30 kV/mrn (300 kV/cm). Two ... -
Phase Transitions of Antiferroelectric Lead Zirconate Thin Films in High Electric Fields
(1996)Phase transitions in antiferroelectric lead zirconate thin films were studied at room temperature and at 77 K. The lead zirconate films were prepared on Pt coated Si substrates by a reactive magnetron co-sputtering mthod ... -
PLZT Phases near Lead Titanate. I. Determination by X-ray Diffraction
(2005)The room temperature phase diagram of PLZT, (Pb,La)(Zr,Ti)O3, or L/Z/T for L<12 and T<10 was constructed using X-ray diffraction patterns of sintered and crushed PLZT material. The orthorhombic antiferroelectric phase, a ... -
Global Positioning Satellite System
(1987)The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of ... -
The Role of the Institution of Surveyors of Kenya
(1997)he objectives of the Institution are two-fold: To secure the advancement and acquisition of that knowledge which constitutes the profession of a survey and, To promote the general interests of the profession ... -
Requirements for the Kenya Survey Licence
(1997)Persons eligible to be licensed. Persons entitled to be examined. Exemptions. Application for examination. Examining candidate on oath. Conditions precedent to issue of licence. Register of licensed surveyors. Disciplinary ... -
The Impact of Global Positioning System on Surveying and Mapping
(1998)This paper is an output of the Land Market Action Plan in Albania, implemented by the Project Management Unit of the Immovable Property Registration System and the Co-ordinative Working Group (Tirana, Albania), with ... -
Implementation of the Sectional Properties Act in Kenya
(1999)Over the last six years there has been a tremendous development of infrastructure projects in virtually all corners of Kenya. This has taken the form of Road Improvement Project, Water and sewerage improvement project and ... -
Current Land Laws Governing Land Planning and Title Surveys in Kenya
(1999)The issue of land, its ownership, use and management is a highly emotive one in Kenya and was one of the key issues that drove the need for a new constitution. Following lengthy deliberations and a comprehensive public ... -
Geomatics in the Third Millennium
(1999)The theme of the AfricaGEO 2011 is “Developing Geomatics for Africa”, with an emphasis on the development of Geomatics (as an industry / technology) in the African context. This brings up technological development, as well ...
