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Tools for the revision of a maintenance strategy for an explosives manufacturing plant, using asset management principles / A.B. LouwLouw, Andries Barnabas January 2009 (has links)
The research topic is: Tools for the revision of a maintenance strategy for an explosives
manufacturing plant, using asset management principles. This research has specific reference
to the SASOL Prillan plant based in SASOL, Sasolburg. The purpose of this research is to
identify tools for the revision of a maintenance strategy for an explosives manufacturing plant,
using asset management principles. These tools must be aimed to increase the proactive work
capacity index, Figure 3, and to identify and/or develop tools that can be used by the
engineering team of this explosives manufacturing plant to increase equipment reliability and
performance. In this research assets include people. The meaning and application of asset
management principles were researched and the tools needed to combine existing efforts and
future needs are discussed. The human element to ensure the successful implementation of an
asset management culture was researched and attributes of leaders and a change model is
presented. This research was done into the wider engineering management discipline and not
only maintenance.
The method used to gather data was by means of interviews of a sample group within this
organization. As this manufacturing unit makes use of subject matter experts, these support
functions and plant personnel that were not interviewed, were issued with questionnaires to
ensure that the sample group is a fair representation of the total manufacturing facility. To obtain
a holistic view of potential shortcomings within the current maintenance strategy, all disciplines
and levels within this operation were interviewed and commonalities of various asset
management models were determined and used to define existing problem areas. This data
was used to determine statistical correlations. The case study presented in Chapter 1 indicates
that there is a case for change that can improve the proactive work capacity index of the
engineering team. The results of this research confirm that there is in fact a real requirement to
increase spares accuracy, improve on technical training as well as a need to establish visual
performance indicators (dashboard) to measure overall equipment efficiency with the goal toTools for the revision of a maintenance strategy for an explosives manufacturing plant, using
asset management principles
increase equipment reliability and performance. The technical training referred to in this
research reflects on training of people on equipment after investment in new technology. The
current spares holding strategy is lacking equipment description accuracy.
Furthermore, it is recommended that the implementation of career paths and development plans
for individuals must be developed to create an environment of learning. The use of user status
information captured on the computerized maintenance management system (SAP R/3) can
add to the management of works orders and indicate where the focus must be to complete
overdue work orders. Open work orders should be used to manage expenditure, to measure
planning efficiency and to manage the cash flow of the business. The use of overall equipment
efficiency and engineering efficiency measures is recommended and must be visually displayed
on a “dashboard”. It was recommended that the engineering and operations personnel of this
manufacturing plant be trained in asset management principles and that balanced scorecards
are developed to ensure that the strategies of the various departments are aligned with the
business strategy.
Diagram 1 best illustrates the thinking and process flow of this research. The flow diagram
shows five distinct stages and the appropriate objectives and/ or elements that were considered.
The dissertation is also structured in this manner.
All abbreviations, acronyms and definitions used in this document were listed in APPENDIX B / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
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Tools for the revision of a maintenance strategy for an explosives manufacturing plant, using asset management principles / A.B. LouwLouw, Andries Barnabas January 2009 (has links)
The research topic is: Tools for the revision of a maintenance strategy for an explosives
manufacturing plant, using asset management principles. This research has specific reference
to the SASOL Prillan plant based in SASOL, Sasolburg. The purpose of this research is to
identify tools for the revision of a maintenance strategy for an explosives manufacturing plant,
using asset management principles. These tools must be aimed to increase the proactive work
capacity index, Figure 3, and to identify and/or develop tools that can be used by the
engineering team of this explosives manufacturing plant to increase equipment reliability and
performance. In this research assets include people. The meaning and application of asset
management principles were researched and the tools needed to combine existing efforts and
future needs are discussed. The human element to ensure the successful implementation of an
asset management culture was researched and attributes of leaders and a change model is
presented. This research was done into the wider engineering management discipline and not
only maintenance.
The method used to gather data was by means of interviews of a sample group within this
organization. As this manufacturing unit makes use of subject matter experts, these support
functions and plant personnel that were not interviewed, were issued with questionnaires to
ensure that the sample group is a fair representation of the total manufacturing facility. To obtain
a holistic view of potential shortcomings within the current maintenance strategy, all disciplines
and levels within this operation were interviewed and commonalities of various asset
management models were determined and used to define existing problem areas. This data
was used to determine statistical correlations. The case study presented in Chapter 1 indicates
that there is a case for change that can improve the proactive work capacity index of the
engineering team. The results of this research confirm that there is in fact a real requirement to
increase spares accuracy, improve on technical training as well as a need to establish visual
performance indicators (dashboard) to measure overall equipment efficiency with the goal toTools for the revision of a maintenance strategy for an explosives manufacturing plant, using
asset management principles
increase equipment reliability and performance. The technical training referred to in this
research reflects on training of people on equipment after investment in new technology. The
current spares holding strategy is lacking equipment description accuracy.
Furthermore, it is recommended that the implementation of career paths and development plans
for individuals must be developed to create an environment of learning. The use of user status
information captured on the computerized maintenance management system (SAP R/3) can
add to the management of works orders and indicate where the focus must be to complete
overdue work orders. Open work orders should be used to manage expenditure, to measure
planning efficiency and to manage the cash flow of the business. The use of overall equipment
efficiency and engineering efficiency measures is recommended and must be visually displayed
on a “dashboard”. It was recommended that the engineering and operations personnel of this
manufacturing plant be trained in asset management principles and that balanced scorecards
are developed to ensure that the strategies of the various departments are aligned with the
business strategy.
Diagram 1 best illustrates the thinking and process flow of this research. The flow diagram
shows five distinct stages and the appropriate objectives and/ or elements that were considered.
The dissertation is also structured in this manner.
All abbreviations, acronyms and definitions used in this document were listed in APPENDIX B / Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
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Perceptions of surgical nurses regarding the post-operative pain management of patients after total hip or knee replacement surgeryKolobe, Litaba Efraim 11 1900 (has links)
The purpose of this study was to explore and describe the surgical nurses’ perceptions
about the management of post-operative pain and strategies employed in management
of pain in patients who have undergone total hip or knee replacement surgery in King
Abdulaziz Medical City, Riyadh, Kingdom of Saudi Arabia.
Qualitative, exploratory-descriptive research design was applied. Purposive nonprobability
sampling was used and data collected by means of audio-recorded semistructured
individual interviews. Data saturation was reached after interviewing twenty
surgical nurses. Themes and categories emerged from adopting Creswell’s (2013) “data
analysis spiral”.
One of the key findings was that patients reportedly experience moderate to severe pain
during the first three days after surgery, before it is controlled on mild to moderate levels
or before the patient is pain free. Conclusions were drawn, and one of the major ones
was that multimodal strategies are employed by the surgical to manage post-operative
pain. Recommendations were also made from findings of this study, and one key
recommendation was that expatriate nurses to have access to Arabic speakers to
overcome language barriers. / Health Studies / M.A. (Health Studies)
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Development of Sensitive In Vitro Assays to Assess the Ocular Toxicity Potential of Chemicals and Ophthalmic ProductsMcCanna, David January 2009 (has links)
The utilization of in vitro tests with a tiered testing strategy for detection of mild ocular irritants can reduce the use of animals for testing, provide mechanistic data on toxic effects, and reduce the uncertainty associated with dose selection for clinical trials. The first section of this thesis describes how in vitro methods can be used to improve the prediction of the toxicity of chemicals and ophthalmic products. The proper utilization of in vitro methods can accurately predict toxic threshold levels and reduce animal use in product development. Sections two, three and four describe the development of new sensitive in vitro methods for predicting ocular toxicity. Maintaining the barrier function of the cornea is critical for the prevention of the penetration of infections microorganisms and irritating chemicals into the eye. Chapter 2 describes the development of a method for assessing the effects of chemicals on tight junctions using a human corneal epithelial and canine kidney epithelial cell line. In Chapter 3 a method that uses a primary organ culture for assessing single instillation and multiple instillation toxic effects is described. The ScanTox system was shown to be an ideal system to monitor the toxic effects over time as multiple readings can be taken of treated bovine lenses using the nondestructive method of assessing for the lens optical quality. Confirmations of toxic effects were made with the utilization of the viability dye alamarBlue. Chapter 4 describes the development of sensitive in vitro assays for detecting ocular toxicity by measuring the effects of chemicals on the mitochondrial integrity of bovine cornea, bovine lens epithelium and corneal epithelial cells, using fluorescent dyes.
The goal of this research was to develop an in vitro test battery that can be used to accurately predict the ocular toxicity of new chemicals and ophthalmic formulations. By comparing the toxicity seen in vivo animals and humans with the toxicity response in these new in vitro methods, it was demonstrated that these in vitro methods can be utilized in a tiered testing strategy in the development of new chemicals and ophthalmic formulations.
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Development of Sensitive In Vitro Assays to Assess the Ocular Toxicity Potential of Chemicals and Ophthalmic ProductsMcCanna, David January 2009 (has links)
The utilization of in vitro tests with a tiered testing strategy for detection of mild ocular irritants can reduce the use of animals for testing, provide mechanistic data on toxic effects, and reduce the uncertainty associated with dose selection for clinical trials. The first section of this thesis describes how in vitro methods can be used to improve the prediction of the toxicity of chemicals and ophthalmic products. The proper utilization of in vitro methods can accurately predict toxic threshold levels and reduce animal use in product development. Sections two, three and four describe the development of new sensitive in vitro methods for predicting ocular toxicity. Maintaining the barrier function of the cornea is critical for the prevention of the penetration of infections microorganisms and irritating chemicals into the eye. Chapter 2 describes the development of a method for assessing the effects of chemicals on tight junctions using a human corneal epithelial and canine kidney epithelial cell line. In Chapter 3 a method that uses a primary organ culture for assessing single instillation and multiple instillation toxic effects is described. The ScanTox system was shown to be an ideal system to monitor the toxic effects over time as multiple readings can be taken of treated bovine lenses using the nondestructive method of assessing for the lens optical quality. Confirmations of toxic effects were made with the utilization of the viability dye alamarBlue. Chapter 4 describes the development of sensitive in vitro assays for detecting ocular toxicity by measuring the effects of chemicals on the mitochondrial integrity of bovine cornea, bovine lens epithelium and corneal epithelial cells, using fluorescent dyes.
The goal of this research was to develop an in vitro test battery that can be used to accurately predict the ocular toxicity of new chemicals and ophthalmic formulations. By comparing the toxicity seen in vivo animals and humans with the toxicity response in these new in vitro methods, it was demonstrated that these in vitro methods can be utilized in a tiered testing strategy in the development of new chemicals and ophthalmic formulations.
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