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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.

Rapid establishment of emergency action areas as a consequence of large scale radioactive material releases from fixed nuclear facilities

Fundak, Robert 15 March 1995 (has links)
Rapid emergency response decisions from a radiation release are necessary in order to prevent the general public from being exposed to a potential radiation hazard. A one meter exposure rate measurement is all that is necessary to establish relocation and food control areas when the ground is contaminated at the Protective Action Guide minimum response levels. With the results of these calculations, a known one meter exposure rate is all that is necessary to establish relocation and food control areas for a release from the WNP-2 commercial nuclear power plant or a release from a waste tank at the Hanford site. The calculated one meter exposure rate for WNP-2 is 1.32 ��R/hr at twenty-four hours. The calculated one meter exposure rate for the Hanford tanks is 14.97 ��R/hr. / Graduation date: 1995

Compliance to radiation safety standards by radiographers and dental professionals in Waterberg District Hospitals, Limpopo Province

Modiba, Reshoketswe Mokgadi January 2014 (has links)
Thesis (MPH. ) --University of Limpopo, 2014 / This dissertation reports on findings from a qualitative research that sought to investigate adherence and compliance to radiation safety protocols by radiographers and dental professionals in the Waterberg District. The study also sought to determine the knowledge the participants had on the chronic ill-effects of occupational exposure to radiation, safety protocols and their professional experience in dealing with occupational exposure to radiation. Altogether 60 participants from 8 health institutions in the Waterberg district took part in the study. They were compromised of males and females with ages ranging from 22-60 years. The response rate was 75% (n=45/60). The empirical data of the study shows a consistent yet disconcerting pattern among practitioners about safety compliance, safety protocols and their understanding of long term effect of occupational exposure to radiation. Despite their impressive knowledge of X-rays being a source of ionizing radiation, the level of their understanding of ill-effects thereof was of great concern. The general failure by both professionals in complying with the most basic safety protocols is worrisome. In a nutshell, yet some of the practitioners were found to be greatly exposed to radiation, their daily practices were found not consistent with procedures dictated by the guidelines on the use of medical X-ray equipment. Overall, only 59% of radiographers always wore their dosimeters, a basic monitoring and protective tool to measure their radiation exposure. In the study, only 38% of the dentists were found to be compliant and overwhelmingly alluded this to their employers being unable to supply them with crucial protective clothing, a finding that the researcher cannot dispute as indicated in the responses by the two groups. The failure of the employer in enforcing monitoring and assuring safety to the employees, patients and the general public emerged from this study. Various non-compliance patterns could be attributed to the participants and others to the employer. Protocols as clearly stipulated in R1332 of Hazardous Substance Act 15 of 1973 and other guidelines are not adhered to.

A description of maritime safety in South Africa

Cronje, Riaan 03 1900 (has links)
Thesis (MPhil)--Stellenbosch University, 2000. / ENGLISH ABSTRACT: The increasing financial pressures exerted on ship owners in recent years due to cost inflation, overtonnage and low freight rates in many sectors, have forced ship owners to increase cost savings and contain costs. That induced certain shipowners to operate substandard ships. The cost advantages in substandard ships are through failing to maintain safety equipment and procedures, employing cheap and untrained crews, repairing only essential equipment on breakdown and register under flags that do not comply with all the international regulatory, economic and social requirements for ships. Those ships undercut the true costs of operating a ship and eventually drive the obedient shipowner out of the market at the cost of safe and clean seas. Because of the complex international environment in which shipping operates an international regulatory framework is needed to ensure safety at sea. This assignment gives a layout of that framework, which is co-ordinated by the International Maritime Organisation (!MO), as well as the ways in which it is implemented and regulated in individual countries, with reference to South Africa. The functioning of the South African Maritime Safety Agency (SAMSA), which has been established on 1 April 1998, is also discussed. The benefit of safe ports is highlighted and also the cost savings in marine insurance if ships are classified as safe. A brief description of the navigation instruments that SAMSA use to assist in achieving maritime safety is given. Finally, the diseconomies of substandard ships are debated against quality ships for cleaner seas. / AFRIKAANSE OPSOMMING: Die toenemende finansiële druk op skeepseienaars, as gevolg van koste inflasie, oortonnemaat en lae vragtariewe in verskeie sektore, het hulle gedwing om oor die laaste aantal jare hul kostes te beperk. Gedwonge kostebesparings gee aanleiding daartoe dat sekere skeepseienaars onveilige skepe bedryf. Kostevoordele in onveilige skepe word bereik deur veiligheidstoerusting en -prosedures nie in stand te hou nie, goedkoop en onopgeleide bemanning aan te stel, slegs die nodige herstelwerk aan toerusting te doen en deur te registreer onder vlae wat nie voldoen aan internasionale regulering, ekonomiese en sosiale vereistes vir skepe nie. Eienaars van sulke skepe, onderskruip die ware bedryfskoste van 'n skip en uiteindelik dryf dit die wetsgetroue skeepseienaars uit die mark ten koste van 'n veilige en skoon see. As gevolg van die komplekse internasionale omgewmg waann skeepvaart funksioneer, word 'n internasionale reguleringsraamwerk benodig om veiligheid ter see te verseker. Hierdie werkstuk gee 'n uitleg van daardie raamwerk, wat gekoordineer word deur die Internasionale Maritieme Organisasie (!MO), asook die manier waarop dit geïmplementeer en gereguleer word in individuele lande met verwysing tot Suid-Afrika. Die funksionering van die Suid-Afrikaanse Maritieme Veiligheids Agentskap (SAMSA), wat tot stand gebring is op 1 April 1998, word bespreek. Die voordele van veilige hawens word uitgelig, sowel as die besparings in maritieme versekeringskoste indien 'n skip as veilig geklassifiseer word. 'n Kort beskrywing van navigasie-instrumente wat SAMSA gebruik om maritieme veiligheid te bewerkstellig, word kortliks bespreek. Ten slotte, die dis-ekonomie van onveilige skepe word gedebateer teenoor die kwaliteit van skepe vir 'n skoner see.

Knowledge and practices of food service staff regarding food safety and food hygiene in the Capricorn District Hospitals in the Limpopo Province, South Africa

Mashuba, Dorcus Mmaphefo January 2016 (has links)
Thesis (MPH.) -- University of Limpopo, 2016 / The purpose of this study was to assess the knowledge and practices of food service staff regarding food safety and food hygiene in Capricorn District hospitals, Limpopo Province. Quantitative, cross-sectional research was conducted to determine the knowledge and practices of food service staff. A convenient sampling technique was employed to select 84 food service staff members (11 food service supervisor and 73 food service aids). Data collection was done using structured questionnaires. Food service staff members consisting of food service aids and food service supervisors participated in the study. The data were analysed using the statistical package for social sciences version 23. Of the respondents 50 (60%) are female whereas 34 (40%) are males. The largest group of them, 34 (40%) had secondary education, 23 (27%) had matric whereas 16 (19%) had post matric qualifications. 80 (95%) of them answered correctly that they use an air dryer or paper towel for drying hands after washing whereas 65 (77%) answered incorrectly when asked the difference between washing and sanitizing. Seventy eight of the respondents answered correctly on practice questionnaire that they only reheat leftovers once whereas 69 (82%) answered incorrectly about the temperature one should maintain for potentially hazardous food that has been cooked and needs to be reheated. In this study a significant correlation was observed between level of education and knowledge, with p-value 0.016 and again between level of education and practices (p-value 0.024), also between work activity and practice (p-value 0.021). There was significant difference between knowledge level and practice with p-value 0.045. The result of the study suggest that although most food service staff are knowledgeable regarding some aspects of food hygiene and food safety significant gaps remains in food safety practices, posing risk to hospitalised patients who are already vulnerable. There is a need for training in areas were food service staff are lacking knowledge.

An investigation of nuclear excursions to determine the self-shutdown effects in thermal heterogeneous, highly enriched, liquid-moderated reactors

Fagan, John Robert. January 1962 (has links)
Call number: LD2668 .T4 1962 F35

An assessment of the safety culture in a manufacturing plant

Van der Merwe, Jacobus Johannes 04 1900 (has links)
Thesis (MBA)--Stellenbosch University, 2015. / ENGLISH ABSTRACT: Manufacturing plants should strive towards achieving and maintaining good safety records. It is however difficult for plants to identify specific safety problem areas that can be improved on. One way to identify specific safety areas that needs improvement is by conducting a safety culture survey. A manufacturing plant within South Africa realised the need to improve on its safety performance. However, it was not clear which aspects of its work and safety related practices were at risk. Management therefore decided to obtain an assessment of the safety culture profile of the plant. The assessment was done by way of a plant-wide safety culture survey. The safety culture questionnaire was developed, as part of this research, through an in-house consultation process. This process resulted in identifying 16 different safety-related themes. With the help of literature, these themes were further explored to design the questionnaire. The identified safety themes were measured during the survey and results obtained for each of the plant’s identified safety practices. The survey also provided an overall mean score of the plant’s safety culture, providing management with a better understanding of where they stand in their safety improvement journey. The plant’s equipment, materials and tools; overall rules and regulations; environment, health and safety suggestions; rewards and reinforcement; and management involvement practices was identified as practices that require an immediate response. The plant’s incident reporting and investigation, discipline and training safety practices were identified as less urgent risks.

An evaluation of occupational hazards in the electronics industry in Hong Kong

Liao, Sau-tung, Sarah, 廖秀冬 January 1985 (has links)
published_or_final_version / Medicine / Doctoral / Doctor of Philosophy

Virtually real construction sfite processes: hazard identification and accident precaution planning using design-for-safety-process (DFSP) tool

Hadikusumo, Bonaventura H. W. January 2001 (has links)
published_or_final_version / Real Estate and Construction / Doctoral / Doctor of Philosophy

A study of safety in lift industry

Leung, Shui-cheung, 梁瑞祥 January 1998 (has links)
published_or_final_version / abstract / Real Estate and Construction / Master / Master of Science in Construction Project Management

Managing workplace violence: using a task force approach

劉芷欣, Lau, Tsz-yan. January 2008 (has links)
published_or_final_version / Nursing Studies / Master / Master of Nursing

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