The target of this master's thesis is to describe, design and construct an extra low voltage three-phase DC/AC inverter for the motor AXI 5345/18, which will work in EC motor mode. The inverter is supplied by DC source 24 V. In order to save place, the wiring is designed on three separated printed board circuits. These are connected together by connectors for ribbon cables. The control is done by reverse current loop realized by active electronics and superior circuit MC 33035. The proper wiring of current loop is conformed for both control and testing of jet sensors ACS750. Power electronics of the inverter is realized by potential-free modul GWM 120-0075P3 consisted of 6 mosfet transistors. The designed wiring is not set for the concrete realisation, but it can be used for control of propulsion of the wheel, auxiliary propulsion of engine or in appliances, where servo with worse parameters of control loop is used in a sufficent way and it can be cheaper.

Despite the benefits of applying methods of geographic information science (GIScience), the use of such methods in health service planning and provision remains greatly underutilized. Spread of epidemic diseases is a constant threat to mankind and the globalization of the world increases the risk for global attacks from multi-resistant bacteria or deadly virus strains. Therefore, research is needed to better understand how GIScience could be used in epidemiologic analyses and other health applications. This thesis is divided into two parts; one for epidemiologic analyses and one for neighbourhood studies. The overall objective of the epidemiologic part of this research is to understand more about the spatial spread of past pandemics and to find out if there are any common patterns. This overall objective is divided into four specific research objectives; 1) to describe the spatial spread of the Russian Influenza in Sweden, 2) to create models of propagation of the Black Death in Sweden, 3) to establish spatiotemporal characteristics common to past pandemics in Sweden and 4) to visualize the spatiotemporal occurrence of salmonella among animal herds in Sweden. This thesis also discusses some other aspects of health related to place. Are differences in neighbourhood deprivation related to the amount of presence of goods and services? Is the way cities are planned affecting the behaviour within the local population regarding spontaneous walking and physical activity? The specific research objectives for this part are to define how deprivation is related to presence of goods and services in Sweden and to create walkability indices over the city of Stockholm including a quality test of these indices. Case data reported by physicians were used for the epidemiologic studies. The pandemics discussed covered the entire world, but our data is from Sweden only and as regards the Black Death there was no case data at all. The data for the goods and services analyses are from all of Sweden, whereas the walkability indices are based on data from the city of Stockholm. Various methods have been used to clean, structure and geocode the data, including hand written reports on case data, maps of poor geometric quality, information from databases on climate, demography, diseases, goods and services, income data and more, to make this data feasible for spatial analysis, modeling and visualization. Network analysis was used to model food transports in the 14th century as well as walking in the city of Stockholm today. Proximity analysis was used to assess the spatio-temporal spread of the Russian Influenza. The impact of climatological factors on the propagation of the Asian Influenza was analyzed and geographically weighted mean (GWM) calculations were used to discover common characteristics in the spatio-temporal spread of three past pandemics. Among the results generated in the epidemiologic study the following should be noted in particular; the local peaking periods of the Asian Influenza were preceded by falling temperature, the total peaking period for the three pandemics (Russian, Asian and A(H1N1)pdm09) was approximately 10 weeks and their weekly GWM followed a path from southwest to northeast (opposite direction for the A(H1N1)pdm09). From the neighborhood studies one can note that compared to the results measured and reported by tested individuals there is a positive (small but significant) association between neighborhood walkability and physical activity outcomes. The main contribution of this work is that it gives epidemiologists and public health specialists new ideas, not only on how to formulate, model, analyze and visualize different health related research questions but also ideas on how new procedures could be implemented in their daily work. Once the data reporting is organized in a suitable manner there is a multitude of options on how to present important and critical information to officials and policy makers. / <p>QC 20140313</p>

In South Africa, democracy has brought transformative improvement in the system of governance. The Constitution of the Republic of South Africa (1996) implemented in the post-apartheid era, has raised the status of the lowest sphere of government, by granting these authorities delegated responsibilities. This sphere of governance is known as local government (municipal government) and in the present context developmental local government is both democratically elected and decentralized. The restructuring of local governance requires municipalities to serve the communities within their areas of jurisdiction. This has brought capacity challenges for the municipalities. They are charged with delivering acceptable standards of services to the residents. The current lack of deliverance is evident in the widespread protests, with community members showing their dissatisfaction with sub-standard service delivery and backlogs. Furthermore, municipalities are required to formulate their own by-laws improve the lives of community members, and to implement their legislative mandates satisfactorily. In order for the municipalities to perform more effectively, a transformative model is necessary. The quality of services currently delivered at municipal level must be reviewed. Monitoring and evaluation are the key elements of assessment which must be undertaken. The rationale behind this monitoring and evaluation is to make the system of governance more effective through an even-handed assessment of policies, programmes, projects, strategies, performance of personnel, and the organization as a whole. For the purpose of this study, the researcher explored the challenges regarding monitoring and evaluation and its impact on sustainable development in Sedibeng District Municipality utilizing the quantitative research approach. A model is proposed for improvement called as Monitoring and Evaluation for Sustainable Development (MESD). / PhD (Public Management and Governance), North-West University, Vaal Triangle Campus, 2014

In South Africa, democracy has brought transformative improvement in the system of governance. The Constitution of the Republic of South Africa (1996) implemented in the post-apartheid era, has raised the status of the lowest sphere of government, by granting these authorities delegated responsibilities. This sphere of governance is known as local government (municipal government) and in the present context developmental local government is both democratically elected and decentralized. The restructuring of local governance requires municipalities to serve the communities within their areas of jurisdiction. This has brought capacity challenges for the municipalities. They are charged with delivering acceptable standards of services to the residents. The current lack of deliverance is evident in the widespread protests, with community members showing their dissatisfaction with sub-standard service delivery and backlogs. Furthermore, municipalities are required to formulate their own by-laws improve the lives of community members, and to implement their legislative mandates satisfactorily. In order for the municipalities to perform more effectively, a transformative model is necessary. The quality of services currently delivered at municipal level must be reviewed. Monitoring and evaluation are the key elements of assessment which must be undertaken. The rationale behind this monitoring and evaluation is to make the system of governance more effective through an even-handed assessment of policies, programmes, projects, strategies, performance of personnel, and the organization as a whole. For the purpose of this study, the researcher explored the challenges regarding monitoring and evaluation and its impact on sustainable development in Sedibeng District Municipality utilizing the quantitative research approach. A model is proposed for improvement called as Monitoring and Evaluation for Sustainable Development (MESD). / PhD (Public Management and Governance), North-West University, Vaal Triangle Campus, 2014