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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Pre-randomization in study designs acceptability and applicability /

Schellings, Adolf Gertrudis Ludovicus. January 1900 (has links)
Proefschrift Universiteit Maastricht. / Auteursnaam op omslag: Ron Schellings. Met lit. opg. - Met een samenvatting in het Nederlands.
2

Die ontwerp, simulasie en realisering van 'n masker-programmeerbare 12L PLM

Frost, D. F. January 1978 (has links)
Please read the abstract in the dissertation. / Dissertation (MSc)--University of Pretoria, 1978. / gm2014 / Electrical, Electronic and Computer Engineering / Unrestricted
3

'n Nuwe ingenieursfakulteitsgebou vir die Noordwes Universiteit (Afrikaans)

Smit, Stephanus Johannes 30 November 2009 (has links)
This study entails the design of a new engineering faculty building for the University of the North West’s (NWU) main campus at Potchefstroom. The design is influenced by considerations regarding the strengthening of the spatial qualities of the existing main campus, the campus’s relationship with its academic surrounds, requirements as stated by the office of the dean (faculty of engineering, NWU) and a commitment to sustainable design. The problem is addressed on the level of form. The answer is therefore spatial. A flexible architecture evolves. AFRIKAANS : Die studie behels die ontwerp van 'n nuwe ingenieursfakulteitsgebou vir die Noordwes Universiteit (NWU) se hoof kampus te Potchefstroom. Invloede op die vorming van die ontwerp is in hoofsaak oorwegings rondom die versterking van die ruimtelike kwaliteite van die bestaande kampus, die kampus se verband met sy akademiese omgewing, behoeftes gestel deur die kantoor van die dekaan (fakulteit ingenieurswese, NWU) en 'n verbintenis tot volhoubare ontwikkeling. Die probleem word aangespreek op die vlak van vorm. Die antwoord is dus ruimtelik. 'n Buigsame argitektuur ontwikkel. Copyright / Dissertation (MArch(Prof))--University of Pretoria, 2010. / Architecture / unrestricted
4

Utilizing GIS for effective datamodel design at the NWU Potchefstroom Campus / David Andreas Maree

Maree, David Andreas January 2011 (has links)
Record keeping and management of electrical utilities inside buildings is an important aspect to ensure effective electrical distribution. The ability to find the location of each electrical feature inside a building and extract information about it helps to solve network problems faster. The use of a spatial database structure facilitates the maintenance and general operations of an electrical network across different buildings. The aim of this study is to design and develop a 3D data model to provide a management system for electrical utilities inside buildings. The geodatabase provides integrated information between different electrical components forming the network inside the specified buildings in the study area. A prototype called the PUK geodatabase was designed and developed for the NWU Potchefstroom Campus as a 3D data model. The data model consists of raster and vector data used in network datasets, relationship classes and topology rules. The aim of this project was accomplished through the 3D analysis capabilities of the model. The research determined that the prototype called the PUK geodatabase can be utilized as a 3D management system for electrical utilities across the different floor levels of a building. / Thesis (M.Sc. (Geography and Environmental Studies))--North-West University, Potchefstroom Campus, 2012
5

Utilizing GIS for effective datamodel design at the NWU Potchefstroom Campus / David Andreas Maree

Maree, David Andreas January 2011 (has links)
Record keeping and management of electrical utilities inside buildings is an important aspect to ensure effective electrical distribution. The ability to find the location of each electrical feature inside a building and extract information about it helps to solve network problems faster. The use of a spatial database structure facilitates the maintenance and general operations of an electrical network across different buildings. The aim of this study is to design and develop a 3D data model to provide a management system for electrical utilities inside buildings. The geodatabase provides integrated information between different electrical components forming the network inside the specified buildings in the study area. A prototype called the PUK geodatabase was designed and developed for the NWU Potchefstroom Campus as a 3D data model. The data model consists of raster and vector data used in network datasets, relationship classes and topology rules. The aim of this project was accomplished through the 3D analysis capabilities of the model. The research determined that the prototype called the PUK geodatabase can be utilized as a 3D management system for electrical utilities across the different floor levels of a building. / Thesis (M.Sc. (Geography and Environmental Studies))--North-West University, Potchefstroom Campus, 2012
6

Synthesis and evaluation of a charge sensitive amplifier for neutron counters / Stefanie Strachan

Strachan, Stefanie January 2013 (has links)
Cosmic-ray fluctuations are monitored by neutron monitors using several different kinds of proportional counter tubes. An important component of these monitors is the electronic subsystem that registers and counts output pulses from these counter tubes. Part of the electronic subsystem is a specific preamplifier. The pulse-height distribution curve of the existing preamplifier used in the neutron monitor system at the Centre for Space Research at the North-West University was found to be incorrect, and therefore the pulse-height information cannot be used for further research on the counter tube characteristics. A correct pulse-height distribution implies that the envelope of the pulse, as generated by an amplifier, has a very specific shape as a result of the physics that governs the generation of pulses in the neutron counter tube. It was therefore proposed that a new charge-sensitive preamplifier be synthesized to provide an output that provides the correct pulse-height distribution graph for a neutron monitor system. The Centre for Space Research at the North-West University is in the process of designing and building a new mini neutron monitor system. The new charge-sensitive preamplifier will be implemented into this updated system. Ultimately, the electronic subsystem must be able to provide a pulse-height distribution graph at the push of a button, thus making the preamplifier a key component in the new design. In this dissertation the theory of charge-sensitive amplifiers is researched following a design science research methodology. The results showed that a charge-sensitive amplifier can be synthesized to address both the real-world requirements and the theoretical requirements of this research. / MIng (Electrical and Electronic Engineering), North-West University, Potchefstroom Campus, 2014
7

Synthesis and evaluation of a charge sensitive amplifier for neutron counters / Stefanie Strachan

Strachan, Stefanie January 2013 (has links)
Cosmic-ray fluctuations are monitored by neutron monitors using several different kinds of proportional counter tubes. An important component of these monitors is the electronic subsystem that registers and counts output pulses from these counter tubes. Part of the electronic subsystem is a specific preamplifier. The pulse-height distribution curve of the existing preamplifier used in the neutron monitor system at the Centre for Space Research at the North-West University was found to be incorrect, and therefore the pulse-height information cannot be used for further research on the counter tube characteristics. A correct pulse-height distribution implies that the envelope of the pulse, as generated by an amplifier, has a very specific shape as a result of the physics that governs the generation of pulses in the neutron counter tube. It was therefore proposed that a new charge-sensitive preamplifier be synthesized to provide an output that provides the correct pulse-height distribution graph for a neutron monitor system. The Centre for Space Research at the North-West University is in the process of designing and building a new mini neutron monitor system. The new charge-sensitive preamplifier will be implemented into this updated system. Ultimately, the electronic subsystem must be able to provide a pulse-height distribution graph at the push of a button, thus making the preamplifier a key component in the new design. In this dissertation the theory of charge-sensitive amplifiers is researched following a design science research methodology. The results showed that a charge-sensitive amplifier can be synthesized to address both the real-world requirements and the theoretical requirements of this research. / MIng (Electrical and Electronic Engineering), North-West University, Potchefstroom Campus, 2014
8

The development of a universal accessibility framework for national parks in South Africa and Zimbabwe / Oliver Chikuta

Chikuta, Oliver January 2015 (has links)
Despite global growth in the disability tourism market, tourism organisations have not realised the full potential of this market due to a lack of understanding of this market segment as well as the perception that PwDs do not travel. Most facilities remain inaccessible to people with both permanent and temporary impairments. Disability movements (like the American Association of People with Disabilities, Aspies for Freedom and Handicap International) have raised their voices but not loud enough to stir action. Workshops, seminars and conferences have been held but most were talk shows with no practical implications. To date, no research-based universal accessibility framework exists for national parks in South Africa and Zimbabwe and no practical standards have been formulated to ensure accessibility to all in these parks. This study aimed to design a universal accessibility framework for national parks in South Africa and Zimbabwe. To achieve this goal one of the study‟s objectives was a literature review on universal accessibility and tourism. This objective is achieved in Chapter 2. The second objective was to establish the extent to which national parks in South Africa and Zimbabwe are universally accessible. Interviews were conducted with park management in both countries to meet this objective. The study also sought to establish the accessibility expectations of people with disabilities; this was attained by administering a 10-page online questionnaire to people with disabilities from across the globe. Finally, the study aimed to formulate a set of recommendations and develop a framework for universal accessibility. Using SPSS, Exploratory Factor Analysis and ANOVAs were performed in order to analyse and interpret data. Descriptive statistics were also used. The Alpha values and mean inter-item correlations confirmed the reliability and internal consistency of the data. Eleven factors were identified from the factor analysis: transport; parking and entrance; the reception area; restrooms; bird watching and game drives; trails; information accessibility; interpretation; water-based activities; accommodation and dining as well as campsites. The results revealed that while people with disabilities want all areas to be accessible, specific facilities were singled out in line with particular disabilities. People with mobility impairments were more worried about transport and parking than people with other impairments. They were also concerned about the accessibility of bird watching and game viewing as well as accommodation and dining than were people with hearing and visual impairments. People with hearing impairments placed much high value on the accessibility of the reception area than those with mobility and visual impairments. Interesting to note was the fact that people with visual impairments did not regard accessible restrooms as very important. Most importantly, all people with disabilities were strongly against steps and staircases in all facilities since they are a serious barrier to accessibility regardless of type of disability. They also attach more value to how they are treated when they visit national parks. This was identified as more important than physical access. A universal accessibility framework was developed based on the literature and research findings. This framework will go a long way in assisting policy makers to address accessibility issues in national parks and the tourism sector in general. / PhD (Tourism Management), North-West University, Potchefstroom Campus, 2015
9

The development of a universal accessibility framework for national parks in South Africa and Zimbabwe / Oliver Chikuta

Chikuta, Oliver January 2015 (has links)
Despite global growth in the disability tourism market, tourism organisations have not realised the full potential of this market due to a lack of understanding of this market segment as well as the perception that PwDs do not travel. Most facilities remain inaccessible to people with both permanent and temporary impairments. Disability movements (like the American Association of People with Disabilities, Aspies for Freedom and Handicap International) have raised their voices but not loud enough to stir action. Workshops, seminars and conferences have been held but most were talk shows with no practical implications. To date, no research-based universal accessibility framework exists for national parks in South Africa and Zimbabwe and no practical standards have been formulated to ensure accessibility to all in these parks. This study aimed to design a universal accessibility framework for national parks in South Africa and Zimbabwe. To achieve this goal one of the study‟s objectives was a literature review on universal accessibility and tourism. This objective is achieved in Chapter 2. The second objective was to establish the extent to which national parks in South Africa and Zimbabwe are universally accessible. Interviews were conducted with park management in both countries to meet this objective. The study also sought to establish the accessibility expectations of people with disabilities; this was attained by administering a 10-page online questionnaire to people with disabilities from across the globe. Finally, the study aimed to formulate a set of recommendations and develop a framework for universal accessibility. Using SPSS, Exploratory Factor Analysis and ANOVAs were performed in order to analyse and interpret data. Descriptive statistics were also used. The Alpha values and mean inter-item correlations confirmed the reliability and internal consistency of the data. Eleven factors were identified from the factor analysis: transport; parking and entrance; the reception area; restrooms; bird watching and game drives; trails; information accessibility; interpretation; water-based activities; accommodation and dining as well as campsites. The results revealed that while people with disabilities want all areas to be accessible, specific facilities were singled out in line with particular disabilities. People with mobility impairments were more worried about transport and parking than people with other impairments. They were also concerned about the accessibility of bird watching and game viewing as well as accommodation and dining than were people with hearing and visual impairments. People with hearing impairments placed much high value on the accessibility of the reception area than those with mobility and visual impairments. Interesting to note was the fact that people with visual impairments did not regard accessible restrooms as very important. Most importantly, all people with disabilities were strongly against steps and staircases in all facilities since they are a serious barrier to accessibility regardless of type of disability. They also attach more value to how they are treated when they visit national parks. This was identified as more important than physical access. A universal accessibility framework was developed based on the literature and research findings. This framework will go a long way in assisting policy makers to address accessibility issues in national parks and the tourism sector in general. / PhD (Tourism Management), North-West University, Potchefstroom Campus, 2015
10

Exploring best practices in animal-assisted therapy with children in the Western Cape / J.A. Thompson.

Thompson, Jennifer Anne January 2013 (has links)
This dissertation serves as a report on the qualitative exploration of best practices in animal-assisted therapy (AAT) with children. The aim of the study was to explore and describe best practices in the field of AAT with children in the Western Cape. The research made use of the case study design, which offered the researcher the opportunity to interact with a small number of individuals and look for patterns in the research participants’ words and experiences. Four participants, who were trained mental health professionals and had offered AAT to children, were selected to participate in the research. A literature review of animal-assisted therapy and best practice provided a theoretical basis for the research. The history of AAT, the uses and benefits of AAT and the animals incorporated in AAT were explored. The term “best practice” and its application in mental health and AAT were also discussed. The verbatim transcriptions of the audiotaped data were analysed and interpreted using Interpretative Phenomenological Analysis (IPA) and an AAT conceptual framework (brought about by the literature review). Themes were developed from the empirical data and substantiated by the literature review. Five main themes emerged as a result of the analysis. The first theme, Training of the animal-assisted therapist, focused on both the mental health training and the AAT training of the therapist. The second theme, Training of animals incorporated in animal-assisted therapy, revealed the importance of training the animal to be included in AAT. The third theme, Different client populations in animal-assisted therapy, looked at which populations should be included, excluded or included and carefully managed during AAT. The fourth theme, Ethical considerations in animal-assisted therapy, revealed the importance of considering both the child’s and the animal’s welfare. The fifth theme, Regulation of animal-assisted therapy, gave a more in-depth description of the current regulation of AAT in the Western Cape and provided suggestions for the regulation of AAT. Based on the findings of the five themes, recommendations were made for best practice in AAT with children in the Western Cape. / Thesis (MA (Psychology))--North-West University, Potchefstroom Campus, 2013.

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