Browsing by Author "Mvuma, Aloys N."
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Item Community perception on Lake Victoria Basin resources degradation: implications to sustainable management(Canadian Center of Science and Education, 2015) Tenge, Albino J. M.; Mvuma, Aloys N.; Baker, Samuel B.; Mongi, Hector J.; Mwakijele, Jonathan; Gabriel, Maria C.Degradation of Lake Victoria Basin (LVB) resources due to deforestation, illegal fishing and unsustainable farming practices is among the major challenge to the natural resources managers and the livelihood of surrounding communities. Several measures have been proposed to mitigate the situation. These measures range from policies, laws, regulations to technical options. Despite these efforts, adherence to these regulations and adoption of the proposed technologies is low. Among the factors that can influence household adoption of a particular technology is perception of the problem and the technology itself. This has not been thoroughly investigated and integrated in development and promotion of mitigation options. This research assessed the local community perception on the LVB resources, levels of degradation and the causes. The research was done in selected sites within LVB in Tanzania, Uganda and Rwanda. Data was collected through questionnaire interviews and focused group discussion to 334 respondents. Collected data was descriptively analyzed using means, frequencies, percentages and ranking. Results indicate that majority of community members perceive LVB resources to be currently more degraded than past twenty years. However, specific types of resources and levels of degradation do differ between countries. Degradation factors are personal, administrative, technical and policy related. Lack of alternatives is among the major driving forces to degradation activities. It is recommended that intervention efforts to reverse degradation situation need to consider local community perception and be of multiple nature to address technical, administrative and policy issues.Item Network security analysis in the enterprise LANS(Foundation of Computer Science, 2014) Mutembei, Leonard L.; Mvuma, Aloys N.; Kondo, Tabu S.Enterprise Local Area Networks (ELANs) have been expanding following an increase in the number of staff which necessitates the establishment of new offices. However, the reliability and security of services provided by ELANs need to be ensured at all times to meet the expectations of users. In this paper, the network security holes existing within the ELANs were investigated. Vulnerabilities and threats were critically examined in one of the ELANs. It was observed that known vulnerabilities were still around within the network. Based on the findings, the paper suggests that all software used in the networking devices need to be updated; unneeded open ports need to be closed; cache servers and security policy need to be implemented. The suggestions will ensure the stability of the network during scaling out as the number of staff continues to grow.Item Wireless sensor networks for water quality monitoring and control within lake victoria basin: prototype development(Scientific Research Publishing Inc., 2014) Faustine, Anthony; Mvuma, Aloys N.; Mongi, Hector J.; Gabriel, Maria C.; Tenge, Albino J.; Kucel, Samuel B.The need for effective and efficient monitoring, evaluation and control of water quality in Lake Victoria Basin (LVB) has become more demanding in this era of urbanization, population growth and climate change and variability. Traditional methods that rely on collecting water samples, testing and analyses in water laboratories are not only costly but also lack capability for real-time data capture, analyses and fast dissemination of information to relevant stakeholders for making timely and informed decisions. In this paper, a Water Sensor Network (WSN) system prototype developed for water quality monitoring in LVB is presented. The development was preceded by evaluation of prevailing environment including availability of cellular network coverage at the site of operation. The system consists of an Arduino microcontroller, water quality sensors, and a wireless network connection module. It detects water temperature, dissolved oxygen, pH, and electrical conductivity in real-time and disseminates the information in graphical and tabular formats to relevant stakeholders through a web-based portal and mobile phone platforms. The experimental results show that the system has great prospect and can be used to operate in real world environment for optimum control and protection of water resources by providing key actors with relevant and timely information to facilitate quick action taking.Item Wireless Sensor Networks for Water Quality Monitoring and Control within Lake Victoria Basin: Prototype Development(Scientific Research Publishing, Inc., 2014) Faustine, Anthony; Mvuma, Aloys N.; Mongi, Hector J.; Gabriel, Maria C.; Tenge, Albino J.; Kucel, Samuel B.The need for effective and efficient monitoring, evaluation and control of water quality in Lake Victoria Basin (LVB) has become more demanding in this era of urbanization, population growth and climate change and variability. Traditional methods that rely on collecting water samples, testing and analyses in water laboratories are not only costly but also lack capability for real-time data capture, analyses and fast dissemination of information to relevant stakeholders for making timely and informed decisions. In this paper, a Water Sensor Network (WSN) system prototype developed for water quality monitoring in LVB is presented. The development was preceded by evaluation of prevailing environment including availability of cellular network coverage at the site of operation. The system consists of an Arduino microcontroller, water quality sensors, and a wireless network connection module. It detects water temperature, dissolved oxygen, pH, and electrical conductivity in real-time and disseminates the information in graphical and tabular formats to relevant stakeholders through a web-based portal and mobile phone platforms. The experimental results show that the system has great prospect and can be used to operate in real world environment for optimum control and protection of water resources by providing key actors with relevant and timely information to facilitate quick action taking.