Towards the optimization of resolution and rendering issues in the context of contemporary environmental design computer modelling
- Authors: Liu, Peng
- Date: 2006
- Subjects: Architecture -- Environmental aspects -- South Africa , Environmental engineering , City planning , Engineering design
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8151 , http://hdl.handle.net/10948/548 , Architecture -- Environmental aspects -- South Africa , Environmental engineering , City planning , Engineering design
- Description: This dissertation sets out to find a pragmatic solution for optimizing both resolution and rendering issues in the context of contemporary environmental design computer modelling. In this regard the following issues are addressed: Firstly, determining (with reference to a limited selection of existing 3DS Max software and plugins (i.e. VRay and Mental-Ray), which specific piece of software produces the best compromise as far as visual accuracy is concerned whilst still offering the designer the best scope for further design manipulation. Secondly, establishing design techniques which can increase the speed of model making as well as reduce rendering time without having an adverse effect on issues such as resolution and image quality. Lastly, ascertaining the least number of surfaces for a typical geometrical shape (e.g. chair, table, ornament etc.) without losing visual veracity by manipulation of the design itself. The research strongly supports the notion that VRay is the best overall software to be employed as a base before applying any design solutions. In this latter regard a number of solutions became evident as a means to both save memory and cut down on rendering time, including such factors as using spotlight rather than an omni light when rendering, because omni light calculations include the generation of needless shadows. The beneficial effect of employing ‘target direct’ light and reducing the area of light in order to decrease the calculation of shadow. Eliminating objects which do not need shadows from the lighting calculation and shutting off the reverberation and refraction factors before rendering. It was also confirmed that a black and white mipmap is better than a colour mipmap as far as saving on the system’s memory.
- Full Text:
- Date Issued: 2006
- Authors: Liu, Peng
- Date: 2006
- Subjects: Architecture -- Environmental aspects -- South Africa , Environmental engineering , City planning , Engineering design
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8151 , http://hdl.handle.net/10948/548 , Architecture -- Environmental aspects -- South Africa , Environmental engineering , City planning , Engineering design
- Description: This dissertation sets out to find a pragmatic solution for optimizing both resolution and rendering issues in the context of contemporary environmental design computer modelling. In this regard the following issues are addressed: Firstly, determining (with reference to a limited selection of existing 3DS Max software and plugins (i.e. VRay and Mental-Ray), which specific piece of software produces the best compromise as far as visual accuracy is concerned whilst still offering the designer the best scope for further design manipulation. Secondly, establishing design techniques which can increase the speed of model making as well as reduce rendering time without having an adverse effect on issues such as resolution and image quality. Lastly, ascertaining the least number of surfaces for a typical geometrical shape (e.g. chair, table, ornament etc.) without losing visual veracity by manipulation of the design itself. The research strongly supports the notion that VRay is the best overall software to be employed as a base before applying any design solutions. In this latter regard a number of solutions became evident as a means to both save memory and cut down on rendering time, including such factors as using spotlight rather than an omni light when rendering, because omni light calculations include the generation of needless shadows. The beneficial effect of employing ‘target direct’ light and reducing the area of light in order to decrease the calculation of shadow. Eliminating objects which do not need shadows from the lighting calculation and shutting off the reverberation and refraction factors before rendering. It was also confirmed that a black and white mipmap is better than a colour mipmap as far as saving on the system’s memory.
- Full Text:
- Date Issued: 2006
Towards theorizing human resource development in South Africa: a critical analysis and the development of a tool to facilitate improved understanding and practice
- Authors: Anderson, Amber Cristal
- Date: 2006
- Subjects: Manpower planning -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16130 , http://hdl.handle.net/10948/469 , Manpower planning -- South Africa
- Description: The primary objective of this study is to generate pathways to understanding Human Resources Development (HRD) by developing a tool which enables and enhances a shared and common understanding of HRD in South Africa (SA). To achieve this objective, this research explores the nature and importance of HRD and articulates and aggregates these thoughts and practices into a tool which facilitates an understanding of HRD with the overarching aim of improving HRD thoughts and practices in South Africa. While there is substantial international and local literature on HRD, the existing body of research on the nature and importance of HRD in South Africa is skeletal. National HRD concepts and practices are fragmented, and are as diverse as the number of stakeholders and partners that it serves. In addition, theory-building in HRD is disconnected and removed from practice. In order to address this problem, a qualitative, interpretive, theory-building social constructionist research strategy was embarked upon. The research strategy was executed in an iterative, cyclical manner, using theoretical sampling and content analysis rigorously executed within a coding paradigm informed by open, axial and selective coding techniques with local and international literature and informal reviews as the units of analysis. Qualitative and quantitative findings of the South African Qualifications Authority ground-breaking, world-first longitudinal study was analyzed and used to find relevance and corroborate the international literature available on HRD. Informal reviews were conducted with 7 human resources (HR) practitioners and 54 internationally-based HR colleagues of the researcher in order to ensure as appropriate a degree of integration between theory and practice as was possible. This process culminated in the most significant contribution of this research, which is a tool consisting of six pathways, that facilitates an understanding of the nature and importance of HRD in South Africa. The development of the tool enabled the articulation and aggregation of a thorough and coherent description, explanation and representation of HRD. The research highlights the need for HRD scholars and practitioners to channel their energies and effort on all the catalytic aspects of organizational life, namely uniqueness, social complexity, knowledge, and path dependency, by acquiring critical insight into the profound value of HRD which will allow the realization and sustainability of competitive advantage in a rich and dynamic global economy.
- Full Text:
- Date Issued: 2006
- Authors: Anderson, Amber Cristal
- Date: 2006
- Subjects: Manpower planning -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16130 , http://hdl.handle.net/10948/469 , Manpower planning -- South Africa
- Description: The primary objective of this study is to generate pathways to understanding Human Resources Development (HRD) by developing a tool which enables and enhances a shared and common understanding of HRD in South Africa (SA). To achieve this objective, this research explores the nature and importance of HRD and articulates and aggregates these thoughts and practices into a tool which facilitates an understanding of HRD with the overarching aim of improving HRD thoughts and practices in South Africa. While there is substantial international and local literature on HRD, the existing body of research on the nature and importance of HRD in South Africa is skeletal. National HRD concepts and practices are fragmented, and are as diverse as the number of stakeholders and partners that it serves. In addition, theory-building in HRD is disconnected and removed from practice. In order to address this problem, a qualitative, interpretive, theory-building social constructionist research strategy was embarked upon. The research strategy was executed in an iterative, cyclical manner, using theoretical sampling and content analysis rigorously executed within a coding paradigm informed by open, axial and selective coding techniques with local and international literature and informal reviews as the units of analysis. Qualitative and quantitative findings of the South African Qualifications Authority ground-breaking, world-first longitudinal study was analyzed and used to find relevance and corroborate the international literature available on HRD. Informal reviews were conducted with 7 human resources (HR) practitioners and 54 internationally-based HR colleagues of the researcher in order to ensure as appropriate a degree of integration between theory and practice as was possible. This process culminated in the most significant contribution of this research, which is a tool consisting of six pathways, that facilitates an understanding of the nature and importance of HRD in South Africa. The development of the tool enabled the articulation and aggregation of a thorough and coherent description, explanation and representation of HRD. The research highlights the need for HRD scholars and practitioners to channel their energies and effort on all the catalytic aspects of organizational life, namely uniqueness, social complexity, knowledge, and path dependency, by acquiring critical insight into the profound value of HRD which will allow the realization and sustainability of competitive advantage in a rich and dynamic global economy.
- Full Text:
- Date Issued: 2006
Tracking spoor of the wild woman archetype during a university merger
- Authors: Bodisch, Anja Maria
- Date: 2006
- Subjects: Wild women -- Folklore , Women -- Psychology , Archetype (Psychology) , Individuation (Philosophy)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9936 , http://hdl.handle.net/10948/477 , Wild women -- Folklore , Women -- Psychology , Archetype (Psychology) , Individuation (Philosophy)
- Description: Universities in South Africa are currently undergoing mergers. Intended for commercial gain, mergers rarely accommodate the psychological milieu of staff. Similarly, the majority of studies conducted with respect to university mergers adopt a quantitative approach. This study adopts a qualitative approach and locates the researcher within the epicentre of the research, using a case study, with the researcher as unit of analysis. The lack of merger studies that focus on the experiences of minority groups, including women, prompted me, as researcher, to adopt a feminist approach to conduct this study in the context of the Nelson Mandela Metropolitan University merger. A Jungian gendered view, which endorses the personal experiences of minority groups, explored the connection between organisational change and concomitant opportunities for psychic growth. The primary purpose of this study was to explore the presence of the Wild Woman archetype during a university merger. The data that made up this study were contained in my field notes, research journal and a wall montage. An analysis of the qualitative data and a comparison of Jung’s archetypal theory and Pinkola Estés’ theory of the Wild Woman archetype, enabled the researcher to find evidence of the presence of the Wild Woman archetype during the university merger. The secondary purpose of the study was to document the findings which could act as a spoor which other women could follow on their journey towards connecting with their own Wild Woman archetype. The limitations of this study, and recommendations for future research are also offered.
- Full Text:
- Date Issued: 2006
- Authors: Bodisch, Anja Maria
- Date: 2006
- Subjects: Wild women -- Folklore , Women -- Psychology , Archetype (Psychology) , Individuation (Philosophy)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9936 , http://hdl.handle.net/10948/477 , Wild women -- Folklore , Women -- Psychology , Archetype (Psychology) , Individuation (Philosophy)
- Description: Universities in South Africa are currently undergoing mergers. Intended for commercial gain, mergers rarely accommodate the psychological milieu of staff. Similarly, the majority of studies conducted with respect to university mergers adopt a quantitative approach. This study adopts a qualitative approach and locates the researcher within the epicentre of the research, using a case study, with the researcher as unit of analysis. The lack of merger studies that focus on the experiences of minority groups, including women, prompted me, as researcher, to adopt a feminist approach to conduct this study in the context of the Nelson Mandela Metropolitan University merger. A Jungian gendered view, which endorses the personal experiences of minority groups, explored the connection between organisational change and concomitant opportunities for psychic growth. The primary purpose of this study was to explore the presence of the Wild Woman archetype during a university merger. The data that made up this study were contained in my field notes, research journal and a wall montage. An analysis of the qualitative data and a comparison of Jung’s archetypal theory and Pinkola Estés’ theory of the Wild Woman archetype, enabled the researcher to find evidence of the presence of the Wild Woman archetype during the university merger. The secondary purpose of the study was to document the findings which could act as a spoor which other women could follow on their journey towards connecting with their own Wild Woman archetype. The limitations of this study, and recommendations for future research are also offered.
- Full Text:
- Date Issued: 2006
Ukuphononongwa kwezaphuli-mthetho nokuzalana kwemixholo yenkangeleko kwincwadi ka L. K. Siwisa "Izimanga zalo mhlaba"
- Authors: Melane, Amanda Boniswa
- Date: 2006
- Subjects: Siwisa, L. K. -- Criticism and interpretation , Siwisa, L. K. Izimanga zalo mhlaba , Xhosa fiction -- History and criticism
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8471 , http://hdl.handle.net/10948/564 , http://hdl.handle.net/10948/d1011677 , Siwisa, L. K. -- Criticism and interpretation , Siwisa, L. K. Izimanga zalo mhlaba , Xhosa fiction -- History and criticism
- Description: Ubundlobongela buxhaphake okweentwala kubaThembu. Zininzi iindidi zobundlobongela ezithi ziqhubekeke apha ekuhlaleni. Abantu abathi bazibandakanye nobundlobongela, baphembelelwa ziimeko ezithile. Iimeko ezifana nokunqaba kwemisebenzi, izinga elinyukileyo lokusetyenziswa kweziyobisi nendlela athi umntu othile akhule ngayo. Ukuba ubani othile ukhule ngobusela, naye ulandela emkhondweni kanye abe lisela elibalaseleyo. Kwincwadi kaL. K. Siwisa ethi, “Izimanga zalomhlaba” kubhaqeka oku kulandelayo: Umntwana okhule ekhayeni lakhe kuetyenziswa iziyobisi naye wenza njalo akuba mkhulu. Imali eza ngobuqhinga nokuphela kwayo kuba lula. Ungumntu ebomini kufuneka utye ukubila kwebunzi lakho, uyeke ukufuna ukuvuna kodwa ungakhange ulime. Umntu kaloku uvuna loo nto athe wayilima. Apha ebomini zimisele ukwenza ubutyebi nelifa ngeli xesha usadla amazimba ukuze uphumelele. Xa ungumntu zimisele ukwanela, kule ndawo uMdali akubeke kuyo. Akufuneki ube ngumntu onentliziyo ende, unikwe isandla, wena ufune isandla kunye nengalo. Yonke le mikhwa ikukhokelela ekubeni ekugqibeleni wenze ubundlobongela. Ubundlobongela ke abubhatali koko busingisela kwantshabalala. Kula mabalana iyangqineka ngokuthi abonise iziphumo zobundlobongela ezifana nokuphulukana nobomi, ukuphelelwa zizinto zakho obunazo ngenxa yamaqhinga nobusela nokuphelela entolongweni. Kobu bundlobongela kukholisa ukubakho amaxhoba. Ngelishwa uninzi lwawo iba ngamabhinqa nabantwana.
- Full Text:
- Date Issued: 2006
- Authors: Melane, Amanda Boniswa
- Date: 2006
- Subjects: Siwisa, L. K. -- Criticism and interpretation , Siwisa, L. K. Izimanga zalo mhlaba , Xhosa fiction -- History and criticism
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8471 , http://hdl.handle.net/10948/564 , http://hdl.handle.net/10948/d1011677 , Siwisa, L. K. -- Criticism and interpretation , Siwisa, L. K. Izimanga zalo mhlaba , Xhosa fiction -- History and criticism
- Description: Ubundlobongela buxhaphake okweentwala kubaThembu. Zininzi iindidi zobundlobongela ezithi ziqhubekeke apha ekuhlaleni. Abantu abathi bazibandakanye nobundlobongela, baphembelelwa ziimeko ezithile. Iimeko ezifana nokunqaba kwemisebenzi, izinga elinyukileyo lokusetyenziswa kweziyobisi nendlela athi umntu othile akhule ngayo. Ukuba ubani othile ukhule ngobusela, naye ulandela emkhondweni kanye abe lisela elibalaseleyo. Kwincwadi kaL. K. Siwisa ethi, “Izimanga zalomhlaba” kubhaqeka oku kulandelayo: Umntwana okhule ekhayeni lakhe kuetyenziswa iziyobisi naye wenza njalo akuba mkhulu. Imali eza ngobuqhinga nokuphela kwayo kuba lula. Ungumntu ebomini kufuneka utye ukubila kwebunzi lakho, uyeke ukufuna ukuvuna kodwa ungakhange ulime. Umntu kaloku uvuna loo nto athe wayilima. Apha ebomini zimisele ukwenza ubutyebi nelifa ngeli xesha usadla amazimba ukuze uphumelele. Xa ungumntu zimisele ukwanela, kule ndawo uMdali akubeke kuyo. Akufuneki ube ngumntu onentliziyo ende, unikwe isandla, wena ufune isandla kunye nengalo. Yonke le mikhwa ikukhokelela ekubeni ekugqibeleni wenze ubundlobongela. Ubundlobongela ke abubhatali koko busingisela kwantshabalala. Kula mabalana iyangqineka ngokuthi abonise iziphumo zobundlobongela ezifana nokuphulukana nobomi, ukuphelelwa zizinto zakho obunazo ngenxa yamaqhinga nobusela nokuphelela entolongweni. Kobu bundlobongela kukholisa ukubakho amaxhoba. Ngelishwa uninzi lwawo iba ngamabhinqa nabantwana.
- Full Text:
- Date Issued: 2006
Ukuzotywa kwabalinganiswa abafunzele ukuzibulala kwimidlalo ekhethiweyo yesiXhosa
- Authors: Kondowe, Zandile Ziyanda
- Date: 2006
- Subjects: Acting -- Psychological aspects , Xhosa drama (Tragedy) -- History and criticism , Suicide in literature , Actors -- Psychology , Xhosa drama
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8473 , http://hdl.handle.net/10948/536 , Acting -- Psychological aspects , Xhosa drama (Tragedy) -- History and criticism , Suicide in literature , Actors -- Psychology , Xhosa drama
- Description: Olu phando lugqale kubalinganiswa abafunzele ukuzibulala kwimidlalo ekhethiweyo yesiXhosa. Kwisahluko sokuqala ngumkhombandlela wolu phando, intshayelelo, injongo yophando, ubume besifundo namagqabantshintshi ngentyila bomi zababhali endicaphule kwiincwadi zabo namagama angundoqo. Kwezinye izahluko ingcingane ezahlukeneyo nalapho endingabalula ekaFreud isayikho-analisisi ndinaba ngokubanzi kumabakala awabekileyo afana nokuzalwa, isini, odiphasi khompleksi nephupha nenxaxheba yakhe ekugubhululeni okuyimfihlakalo ngokuthi aphande ubomi bomntu obadlulayo ukuze kubenokunyangwa impixano ekuye ngaphakathi. Enye ingcingane esetyenzisiweyo yile ingokuzibulala nalapho kuphononongwa ukuba ngobani abazibulalayo, abaqinisekileyo ngokufa kwabo, ukuzibulala ngesivumelwano nembalelwano abazishiyayo xa umntu ezibulala. Kwezinye izahluko ndiyibeka icace intsusa neziphumo zokuzibulala kwamaxhoba, ndayiphicotha nendlela ekuxhatshazwe ngayo amalungelo abalinganiswa ngabazali babo kuba benyanzela le mitshato yebhaxa ngenjongo yokuzuza ikhazi ngentombi zabo, nayo imixholo enxulumene nolu phando ndiyicaphule imixholo efana neyothando noqhankqalazo nomxholo wokutshatiswa kwabantwana ngebhaxa. Isahluko sesihlanu ngumqukumbelo jikelele nophononongo ngolu phando.
- Full Text:
- Date Issued: 2006
- Authors: Kondowe, Zandile Ziyanda
- Date: 2006
- Subjects: Acting -- Psychological aspects , Xhosa drama (Tragedy) -- History and criticism , Suicide in literature , Actors -- Psychology , Xhosa drama
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: vital:8473 , http://hdl.handle.net/10948/536 , Acting -- Psychological aspects , Xhosa drama (Tragedy) -- History and criticism , Suicide in literature , Actors -- Psychology , Xhosa drama
- Description: Olu phando lugqale kubalinganiswa abafunzele ukuzibulala kwimidlalo ekhethiweyo yesiXhosa. Kwisahluko sokuqala ngumkhombandlela wolu phando, intshayelelo, injongo yophando, ubume besifundo namagqabantshintshi ngentyila bomi zababhali endicaphule kwiincwadi zabo namagama angundoqo. Kwezinye izahluko ingcingane ezahlukeneyo nalapho endingabalula ekaFreud isayikho-analisisi ndinaba ngokubanzi kumabakala awabekileyo afana nokuzalwa, isini, odiphasi khompleksi nephupha nenxaxheba yakhe ekugubhululeni okuyimfihlakalo ngokuthi aphande ubomi bomntu obadlulayo ukuze kubenokunyangwa impixano ekuye ngaphakathi. Enye ingcingane esetyenzisiweyo yile ingokuzibulala nalapho kuphononongwa ukuba ngobani abazibulalayo, abaqinisekileyo ngokufa kwabo, ukuzibulala ngesivumelwano nembalelwano abazishiyayo xa umntu ezibulala. Kwezinye izahluko ndiyibeka icace intsusa neziphumo zokuzibulala kwamaxhoba, ndayiphicotha nendlela ekuxhatshazwe ngayo amalungelo abalinganiswa ngabazali babo kuba benyanzela le mitshato yebhaxa ngenjongo yokuzuza ikhazi ngentombi zabo, nayo imixholo enxulumene nolu phando ndiyicaphule imixholo efana neyothando noqhankqalazo nomxholo wokutshatiswa kwabantwana ngebhaxa. Isahluko sesihlanu ngumqukumbelo jikelele nophononongo ngolu phando.
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- Date Issued: 2006
Utilising value stream mapping to improve operations at Transwerk Uitenhage
- Authors: Silo, Andile Elliot
- Date: 2006
- Subjects: Production engineering , Production planning
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8760 , http://hdl.handle.net/10948/604 , http://hdl.handle.net/10948/d1011684 , Production engineering , Production planning
- Description: Transwerk is a business uint of Transnet. It was established in 1940. Since 1940 unti 1994, Transwerk operated as the engineering section of Spoornet and was known as South African Railways. Transwerk emancipated in 1994 and had plants in all nine provinces of South Africa. In the past, trains were hauled by steam locomatives, which were manually operated. With the improvement of technology, steam locomotives were replaced by diesel locomotives. The recent technology improvement brought about electric locomotives which are more reliable than diesel locomotives.Trnaswerk has a plant in the Eastern Cape Province which is situated in Uitenhage. This plant focuses on refurbishing wagins for Spoornet. This research is about improving the refurbishing processes of Transwerk Uitenhage.
- Full Text:
- Date Issued: 2006
- Authors: Silo, Andile Elliot
- Date: 2006
- Subjects: Production engineering , Production planning
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8760 , http://hdl.handle.net/10948/604 , http://hdl.handle.net/10948/d1011684 , Production engineering , Production planning
- Description: Transwerk is a business uint of Transnet. It was established in 1940. Since 1940 unti 1994, Transwerk operated as the engineering section of Spoornet and was known as South African Railways. Transwerk emancipated in 1994 and had plants in all nine provinces of South Africa. In the past, trains were hauled by steam locomatives, which were manually operated. With the improvement of technology, steam locomotives were replaced by diesel locomotives. The recent technology improvement brought about electric locomotives which are more reliable than diesel locomotives.Trnaswerk has a plant in the Eastern Cape Province which is situated in Uitenhage. This plant focuses on refurbishing wagins for Spoornet. This research is about improving the refurbishing processes of Transwerk Uitenhage.
- Full Text:
- Date Issued: 2006
Volhoubaarheid van die kommersiële benutting van inheemse dekriet (Thamnochortus insignis) in die Suid-Kaap
- Authors: Horn, Johan Andries Muller
- Date: 2006
- Subjects: Fynbos -- Harvesting -- South Africa , Thatched roofs -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10591 , http://hdl.handle.net/10948/836 , http://hdl.handle.net/10948/d1012882 , Fynbos -- Harvesting -- South Africa , Thatched roofs -- South Africa
- Description: Thamnochortus insignis (Albertinia thatching reed) is a restio specie which is endemic in the narrow (20 km wide) coastal dune veld, from the Gouritz River in the east to the Breede River in the west (120 km). The area within this belt, where this reed is the dominant restio, covers 65 500 hectares. The culms of the reed is harvested as a natural product from the veld and used as thatch on roofs of houses. The traditional use has been as roofing material in Cape Dutch architecture. At this time, thatch roofs are regarded as a luxury commodity and are used in prestigious residential areas and also eco-friendly housing developments. The first section of the research project was based on a Delphi technique questionnaire completed first by 37 and secondly by 10 stakeholders in the industry. This group of growers, contract harvesters, crop agents and thatchers represented 80 percent percent of the estimated 2005 harvest and 87 percent of the estimated farm gate crop value. The thatching reed industry is the main agricultural enterprise situated in the coastal dune veld of the Southern Cape, i.e. 55 percent of total Gross Product Value generated by the survey respondents. The second section is based on an analysis of experimental harvest plots (50 m2), selected at random (4 replications per site) in the 2 x 3 different production systems, i.e. traditional harvest from natural veld, harvest from veld which had been subjected to mechanical injury ("sleep") and harvest from established orchard-type lands. Harvest data was collected at each site in terms of the following components, i.e. number of harvestable tussocks, circumference of tussocks and number of reed bundles (minimum circumference 210 mm, minimum length 1,2 m). The gross income per site was calculated on the basis of R1,80 per bundle (2006-price level). Economic analysis (Gross Margin above selected costs) indicates that plant density (reed tussocks/ha) is a critical factor, in order to offset the establishment cost of R2 100/ha in established lands, which is not incurred in the other two production systems. Economic returns from the first planted lands (2 100 and 2 900 plants/ha) averaged R7 666/ha against R8 781/ha for the mechanical-injury plants. However, at a density of 5 000 plants/ha, the projected Gross Margin increases to R15 765/ha. The use of mechanicalinjury and natural vegetation production systems both interfere with biodiversity and raise major concerns with regard to sustainability of the sensitive coastal dune fynbos. ANOVA-analysis of the data indicates a highly significant difference (p = 0,01) for all sites and production systems. Statistical analysis of averages indicates that mechanical injury treatment results in a significant increase in the number of tussocks, when compared to established and natural veld, respectively. The variance in the circumference of tussocks was greatest in natural veld (55 to 71 percent) and mechanical injury (54 to 61 percent). Tussocks harvested from established plantings reflected the least level of variance (28 to 38 percent). The larger reed tussocks in the established lands produced more bundles of marketable reed (8 200/ha) than the mechanical-injury (7 625/ha) and natural veld (3 450/ha) respectively. Establishment of T. insignis plantlets in an "orchard" system at spacings of 2 m x 1 m on previous winter cereal lands or old pastures, is shown to meet all the requirements within a sustainable production system, i.e. viability, productivity, environmental-friendly, risk management and social acceptance. Furthermore, the quality of the yield was in line with the proposed grading standard for thatching reed, i.e. minimum circumference 210 mm, minimum length 1,2 m and less than 6,5 percent grey culm content.
- Full Text:
- Date Issued: 2006
- Authors: Horn, Johan Andries Muller
- Date: 2006
- Subjects: Fynbos -- Harvesting -- South Africa , Thatched roofs -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10591 , http://hdl.handle.net/10948/836 , http://hdl.handle.net/10948/d1012882 , Fynbos -- Harvesting -- South Africa , Thatched roofs -- South Africa
- Description: Thamnochortus insignis (Albertinia thatching reed) is a restio specie which is endemic in the narrow (20 km wide) coastal dune veld, from the Gouritz River in the east to the Breede River in the west (120 km). The area within this belt, where this reed is the dominant restio, covers 65 500 hectares. The culms of the reed is harvested as a natural product from the veld and used as thatch on roofs of houses. The traditional use has been as roofing material in Cape Dutch architecture. At this time, thatch roofs are regarded as a luxury commodity and are used in prestigious residential areas and also eco-friendly housing developments. The first section of the research project was based on a Delphi technique questionnaire completed first by 37 and secondly by 10 stakeholders in the industry. This group of growers, contract harvesters, crop agents and thatchers represented 80 percent percent of the estimated 2005 harvest and 87 percent of the estimated farm gate crop value. The thatching reed industry is the main agricultural enterprise situated in the coastal dune veld of the Southern Cape, i.e. 55 percent of total Gross Product Value generated by the survey respondents. The second section is based on an analysis of experimental harvest plots (50 m2), selected at random (4 replications per site) in the 2 x 3 different production systems, i.e. traditional harvest from natural veld, harvest from veld which had been subjected to mechanical injury ("sleep") and harvest from established orchard-type lands. Harvest data was collected at each site in terms of the following components, i.e. number of harvestable tussocks, circumference of tussocks and number of reed bundles (minimum circumference 210 mm, minimum length 1,2 m). The gross income per site was calculated on the basis of R1,80 per bundle (2006-price level). Economic analysis (Gross Margin above selected costs) indicates that plant density (reed tussocks/ha) is a critical factor, in order to offset the establishment cost of R2 100/ha in established lands, which is not incurred in the other two production systems. Economic returns from the first planted lands (2 100 and 2 900 plants/ha) averaged R7 666/ha against R8 781/ha for the mechanical-injury plants. However, at a density of 5 000 plants/ha, the projected Gross Margin increases to R15 765/ha. The use of mechanicalinjury and natural vegetation production systems both interfere with biodiversity and raise major concerns with regard to sustainability of the sensitive coastal dune fynbos. ANOVA-analysis of the data indicates a highly significant difference (p = 0,01) for all sites and production systems. Statistical analysis of averages indicates that mechanical injury treatment results in a significant increase in the number of tussocks, when compared to established and natural veld, respectively. The variance in the circumference of tussocks was greatest in natural veld (55 to 71 percent) and mechanical injury (54 to 61 percent). Tussocks harvested from established plantings reflected the least level of variance (28 to 38 percent). The larger reed tussocks in the established lands produced more bundles of marketable reed (8 200/ha) than the mechanical-injury (7 625/ha) and natural veld (3 450/ha) respectively. Establishment of T. insignis plantlets in an "orchard" system at spacings of 2 m x 1 m on previous winter cereal lands or old pastures, is shown to meet all the requirements within a sustainable production system, i.e. viability, productivity, environmental-friendly, risk management and social acceptance. Furthermore, the quality of the yield was in line with the proposed grading standard for thatching reed, i.e. minimum circumference 210 mm, minimum length 1,2 m and less than 6,5 percent grey culm content.
- Full Text:
- Date Issued: 2006
White women writing white : a study of identity and representation in (post-)apartheid literatures of South Africa
- Authors: West, Mary Eileen
- Date: 2006
- Subjects: South African fiction (English) -- History and criticism , Identity (Psychology)
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8443 , http://hdl.handle.net/10948/442 , South African fiction (English) -- History and criticism , Identity (Psychology)
- Description: This thesis examines aspects of identity and representation using contemporary theories and definitions emerging out of a growing body of work known as whiteness studies. The condition of whiteness as it continues to inform identity politics in post-apartheid South Africa is explored in an analysis of selected texts written by white women, to demonstrate the ways in which whiteness continues to suggest normativity. In reading a representative selection of literatures produced in contemporary South Africa by white women writers, this study aims to illustrate the ambivalence apparent in the interstitial manifestations of emergent reconciliatory gestures that are at odds with residual traces of superiority. A sampling of disparate texts is examined to explore the representations of race and belonging in post-apartheid South Africa in the light of contemporary theories of whiteness which posit it as a powerful and invisible identification. The analysis attempts to plot a continuum from writers who are least, through to those who are most, aware of whiteness as a cultural construct and of their own positionality in relation to the discursive dynamics that inform South African racial politics. A contextualising overview of the terrain of whiteness studies is provided in Chapter One, marking the ideological and theoretical affiliations of this project, and foregrounding the construction of whiteness as an imagined identity in contemporary cultural criticism. It also provides a justification for the selection of the textual material under scrutiny. Chapter Two explores a genre that has been identified as a growing trend in South African fiction: the production of pulp fiction written by white middle-class women. Two such texts are the focus of this chapter, namely, Pamela Jooste’s People like Ourselves (2004) and Susan Mann’s One Tongue Singing (2005), and the complicities and clichés that are characteristic of popular literature are examined. Antjie Krog’s A Change of Tongue (2003) is the focus of Chapter Three. It is examined as a book offering the writer’s personal response to the difficulties of transformation within the first decade of South African democracy. Krog confronts her own defensiveness, her sense of normalcy, and her sense of alienation in relation to multiple encounters with different people. Chapter Four focuses on the journalism of Marianne Thamm. Her role as columnist for the popular women’s magazine, Fairlady is explored, particularly in relation to the inclusion of a contending voice writing against the general tenets of Fairlady. Thamm’s critique of the mores governing bourgeois white womanhood is read in relation to her role as officially sanctioned Court Jester. Her Fairlady columns have been collected in Mental Floss (2002) but the analysis includes selected columns from 2003 to 2005. Echo Location: A Guide to Sea Point for Residents and Visitors (1998) by Karen Press is the focus of Chapter Five. Her work is read as examining a white South African crisis of belonging in relation to the implications of mapping the co-ordinates of whiteness in South Africa. Chapter Six offers a reading of four short stories, written by Nadine Gordimer and Marlene van Niekerk. These stories are juxtaposed to trace an anxious impasse in white responses to suburbia, the place of enactment of white bourgeois mores, which both writers interrogate.
- Full Text:
- Date Issued: 2006
- Authors: West, Mary Eileen
- Date: 2006
- Subjects: South African fiction (English) -- History and criticism , Identity (Psychology)
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8443 , http://hdl.handle.net/10948/442 , South African fiction (English) -- History and criticism , Identity (Psychology)
- Description: This thesis examines aspects of identity and representation using contemporary theories and definitions emerging out of a growing body of work known as whiteness studies. The condition of whiteness as it continues to inform identity politics in post-apartheid South Africa is explored in an analysis of selected texts written by white women, to demonstrate the ways in which whiteness continues to suggest normativity. In reading a representative selection of literatures produced in contemporary South Africa by white women writers, this study aims to illustrate the ambivalence apparent in the interstitial manifestations of emergent reconciliatory gestures that are at odds with residual traces of superiority. A sampling of disparate texts is examined to explore the representations of race and belonging in post-apartheid South Africa in the light of contemporary theories of whiteness which posit it as a powerful and invisible identification. The analysis attempts to plot a continuum from writers who are least, through to those who are most, aware of whiteness as a cultural construct and of their own positionality in relation to the discursive dynamics that inform South African racial politics. A contextualising overview of the terrain of whiteness studies is provided in Chapter One, marking the ideological and theoretical affiliations of this project, and foregrounding the construction of whiteness as an imagined identity in contemporary cultural criticism. It also provides a justification for the selection of the textual material under scrutiny. Chapter Two explores a genre that has been identified as a growing trend in South African fiction: the production of pulp fiction written by white middle-class women. Two such texts are the focus of this chapter, namely, Pamela Jooste’s People like Ourselves (2004) and Susan Mann’s One Tongue Singing (2005), and the complicities and clichés that are characteristic of popular literature are examined. Antjie Krog’s A Change of Tongue (2003) is the focus of Chapter Three. It is examined as a book offering the writer’s personal response to the difficulties of transformation within the first decade of South African democracy. Krog confronts her own defensiveness, her sense of normalcy, and her sense of alienation in relation to multiple encounters with different people. Chapter Four focuses on the journalism of Marianne Thamm. Her role as columnist for the popular women’s magazine, Fairlady is explored, particularly in relation to the inclusion of a contending voice writing against the general tenets of Fairlady. Thamm’s critique of the mores governing bourgeois white womanhood is read in relation to her role as officially sanctioned Court Jester. Her Fairlady columns have been collected in Mental Floss (2002) but the analysis includes selected columns from 2003 to 2005. Echo Location: A Guide to Sea Point for Residents and Visitors (1998) by Karen Press is the focus of Chapter Five. Her work is read as examining a white South African crisis of belonging in relation to the implications of mapping the co-ordinates of whiteness in South Africa. Chapter Six offers a reading of four short stories, written by Nadine Gordimer and Marlene van Niekerk. These stories are juxtaposed to trace an anxious impasse in white responses to suburbia, the place of enactment of white bourgeois mores, which both writers interrogate.
- Full Text:
- Date Issued: 2006
Work methods and procedures for plague surveillance and control in South Africa
- Authors: Zhou, Hongxing
- Date: 2006
- Subjects: Plague -- South Africa , Plague -- Vaccination
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9833 , http://hdl.handle.net/10948/649 , Plague -- South Africa , Plague -- Vaccination
- Description: Plague is a classic zoonosis caused by the bacterium Yersinia pestis and is subject to the International Health Regulations, 1969. In the last two millennia, plague has become widespread, with three pandemics occurring in the 6th, 14th and 20th centuries. Currently, plague outbreaks and epidemics still occur worldwide. This study attempts to develop formal work methods and procedures for plague surveillance and control by environmental health practitioners as a strategy to ensure that field data can be integrated within the municipal, provincial and national spheres of government. A qualitative, explorative, descriptive, inductive and deductive research design was followed. A documentary research approach was employed as the primary method of data collection. To obtain additional information, both semi-structured personal interviews and physical observations during plague surveillance were adopted by the researcher. The organisational structure of the health care system in South Africa was analysed to identify and explain the role and functions of relevant decision-makers related to the surveillance and control of plague within the different spheres of government. Legislative measures regarding plague surveillance and control were also presented. As a prerequisite for the development of work methods and procedures for plague surveillance and control, the epidemiology of plague was discussed with emphasis on the distribution and characteristics of the disease in South Africa. Important rodent reservoirs and flea vectors of plague in South Africa were identified. Clinical manifestations, diagnosis and treatment of plague were described and discussed. Within this qualitative study an attempt has been made to develop work methods (xiii) and procedures for plague surveillance and control in South Africa. Relevant field data forms to be used during plague surveillance and control strategies were also developed. Recommendations emanating from the study can be found in the final chapter.
- Full Text:
- Date Issued: 2006
- Authors: Zhou, Hongxing
- Date: 2006
- Subjects: Plague -- South Africa , Plague -- Vaccination
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9833 , http://hdl.handle.net/10948/649 , Plague -- South Africa , Plague -- Vaccination
- Description: Plague is a classic zoonosis caused by the bacterium Yersinia pestis and is subject to the International Health Regulations, 1969. In the last two millennia, plague has become widespread, with three pandemics occurring in the 6th, 14th and 20th centuries. Currently, plague outbreaks and epidemics still occur worldwide. This study attempts to develop formal work methods and procedures for plague surveillance and control by environmental health practitioners as a strategy to ensure that field data can be integrated within the municipal, provincial and national spheres of government. A qualitative, explorative, descriptive, inductive and deductive research design was followed. A documentary research approach was employed as the primary method of data collection. To obtain additional information, both semi-structured personal interviews and physical observations during plague surveillance were adopted by the researcher. The organisational structure of the health care system in South Africa was analysed to identify and explain the role and functions of relevant decision-makers related to the surveillance and control of plague within the different spheres of government. Legislative measures regarding plague surveillance and control were also presented. As a prerequisite for the development of work methods and procedures for plague surveillance and control, the epidemiology of plague was discussed with emphasis on the distribution and characteristics of the disease in South Africa. Important rodent reservoirs and flea vectors of plague in South Africa were identified. Clinical manifestations, diagnosis and treatment of plague were described and discussed. Within this qualitative study an attempt has been made to develop work methods (xiii) and procedures for plague surveillance and control in South Africa. Relevant field data forms to be used during plague surveillance and control strategies were also developed. Recommendations emanating from the study can be found in the final chapter.
- Full Text:
- Date Issued: 2006