IJTD Vol 4 Issue 1 2019

ISSN number: 2001-2837

Volume 4 Issue 1 2019 of IJTD contains 8 articles

In paper one, John Paul Eneku, Tom Otiti and Julius Mwakondo Mwabora investigate the lateral homogeneity of properties of aluminium doped zinc oxide thin film prepared on large area substrates by reactive direct current magnetron sputtering.  Their investigation is motivated by the need to provide large area thin films with homogeneous electrical and optical properties for application as transparent electrodes in photovoltaics and flat panel displays.  They focus on controlling the oxygen flow rate and adopting appropriately large target-substrate distance, during the thin film preparation, to achieve the homogeneity.

In paper two, Ronald Kayiwa and Peter Lating studied the effect of changes in temperature regimes (from mesphilic to thermophilic and vice-versa) on biogas digesters. They experimented this on a lab scale using Cow dung as a substrate. They discuss how changes in temperature affect the various bacterial communities basing on the performance shifts in biogas output and the methane percentage composition.

In paper three, Ronald Kayiwa and Peter Lating present a substrate based batch study of the C:N ratio effects on the performance of biogas systems in Uganda. They present the performance of different animal manures over a predetermined maximum retention time of 29 days. They focused on the biogas output and the percentage methane composition as performance indicators.

In paper four, Nicholas Mugabi examines the way agricultural extension service delivery has metamorphosed to digital extension services using mobile phone-based platforms. He attended to where community agents use smartphones to disseminate agricultural knowledge and practices to last mile farmers in central Uganda. Using the agency-structure theory, he analyses the kind of information digitized on Kulima mobile platform, the extension services used by smallholder farmers and the motivational factors for access to and use of good agricultural practices disseminated through a digital platform.

In paper five, Dorothy Okello, Derrick Sebbaale, and Geoffrey Mark Kagarura project a next generation wireless networks scenario of Uganda by 2025, when 5G connections are expected to have crossed the 1 billion mark globally. In particular, they compare deployment density and throughput requirements for an urban area and a fast-growing rural area.

In paper six, Dorothy Okello and Edwin Mugume evaluate the deployment strategy of a high data rate network because a consistent issue of concern in the design of future mobile cellular systems is the energy consumption of the radio access network. Using a 4G Long Term Evolution (LTE)-based network, energy performance of the network is evaluated given variable base station densities in urban and rural environments.

In paper seven, Stephen Kalyesubula, Yusuf Kyambadde and Peter Okidi Lating explore the use of remote engineering and open source technologies in the design and development of an interactive analog and digital filters characterization laboratory on the iLabs Shared Architecture based on LabVIEW. The developed laboratory is planned to supplement the existing hands-on laboratories in the Department of Electrical and Computer Engineering at Makerere University. They demonstrate the design and operation of analog and digital filter configurations of; high-pass, low-pass, band-pass and band-stop; as well as digital signal processing concepts.

In paper eight, Moses Musinguzi and Stig Enemark describe the key principles for building flexible, universal and sustainable Fit for Purpose (FFP) land administration (LA) systems in African countries, as a better alternative to conventional approaches that focus on unrealistic accuracy standards and complex legal procedures. They present two case studies from Rwanda and Uganda to justify that building FFP land administration systems is the only viable solution to solving the global security of tenure divide. They conclude that implementation of Fit for Purpose Land Administration approach requires political support at National and Local level to facilitate the change process, and in embedding FFP LA provisions into national and local laws.

Research Papers
All PapersPDF
Homogeneous Transparent Conductive Al-doped ZnO Thin Films Deposited by Reactive Direct Current Magnetron Sputtering
John Paul Eneku, Tom Otiti and Julius Mwakondo Mwabora
Biogas digester performance measurement with changing temperature: A facile lab-scale evaluation using cow dung substrate
Ronald Kayiwa, and Peter Okidi. Lating
Carbon to Nitrogen ratio variation effects on biogas systems performance in Uganda: A facile substrate based comparative study
Ronald Kayiwa and Peter Okidi Lating
Digitization of Agricultural Extension Services: A case of Mobile Phonebased Extension Delivery in Central Uganda
Mugabi Nicholas
Next-Generation Wireless Networks for Uganda by 2025
Dorothy Okello, Derrick Sebbaale, and Geoffrey Mark Kagarura
Energy Efficient Techniques for Next-Generation Wireless Networks
Dorothy Okello and Edwin Mugume
Design and Development of an Interactive Analog and Digital Filters Characterization Laboratory Based on LabVIEW
Stephen Kalyesubula, Yusuf Kyambadde, and Peter Okidi Lating
A Fit-For-Purpose Approach to Land Administration in Africa – supporting the 2030 Global Agenda
Moses Musinguzi and Stig Enemark