Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2006. / Mayne, Paul W., Committee Chair ; Goldsman, David, Committee Member ; Lai, James, Committee Member ; Rix, Glenn J., Committee Member ; Santamarina, J. Carlos, Committee Member.

As barreiras impostas pelos mercados externos, relacionadas à sanidade dos produtos e o aumento dos surtos de toxicoinfecções em consumidores, devido à ingestão de alimentos industrializados, são os principais fatores que fazem com que empresas e as cadeias agroalimentares como um todo, preocupem-se com a produção de alimentos seguros (security foods). Diante desta necessidade, foi realizado este estudo, que analisou as vantagens e desvantagens da implantação de um sistema de Análise de Perigos e Pontos Críticos de Controle o APPCC em uma indústria de alimentos. O estudo foi desenvolvido em uma unidade industrial, que já faz uso do sistema há cinco anos, para a produção de embutidos e pratos prontos. A empresa já possui o sistema APPCC estruturado em toda a cadeia de produção, sendo uma das poucas empresas brasileiras a preocupar-se profundamente com esta questão. Os resultados confirmaram a eficiência do sistema para a garantia de segurança em produtos e processos, o que contribui para a melhoria da saúde pública e a diminuição das devoluções. Também podem ser citadas, as vantagens relacionadas ao comprometimento de grupo, valorização e aumento da eficiência operacional, agregação de valor aos produtos ao longo da cadeia e a confiança dos consumidores no que se relaciona a segurança alimentar. Não identificou-se desvantagens aparentes, apenas considerações referentes aos recursos humanos envolvidos, os quais necessitam de treinamento constante, para que desenvolvam suas atividades de acordo com o estabelecido pelo plano. / The barriers imposed by the external markets related to product sanitation and the increase of out breaks among consumers due to the intake of industrialized food are the main factors which make the companies and the agrofeeding chains as a whole to worry about security foods. This study was carried out as a result of this need and it analyzed the advantages and disadvantages of using a control system in food, Hazard Critical Control Points, the HACCP. The system for five years in the production of sausages and ready dishes. The company already ocons the HACCP system structured all over the production chain, being one of the fun Brazilian compances to concern delply about this matter. The results confirm the system efficienty to guarantee the product and process safety, what contributes to the improvement of public health and reduction of returns, as well as the retreat. Also, the advantages related to the group commitment, valuction and operational efficiency increase, value gathering to the products along the chain, as well as the increase in the consumers’ confidence concerning food sefaty. There are not apparent disadvantages, only considerations related to the human resources involved, which need constant supervision in order to develop their activities according to the what was stablished by the plan.

The subject of this diploma thesis is ?Quality assurance in technology of pasta production.? The theoretical part of this diploma thesis is concerned in histori of pasta, characterize raw material for pasta production and production technologies in pastry industry. This work is also including the quality assurance in the food industry, which follow into each individual quality management systems. The greatest attention is paid to the hazard analysis and critical control points (HACCP). The practical part of this diploma thesis deals with the analysis of quality management system and is focused on hazard analysis and critical control points in the production of long type of the egg and egg-free pasta production line P 1000 in the pasta company Bratři Zátkové.

The thesis analyses municipality with a delegated local authority's preparedness for critical situations which results from the critical scheme of a municipality with extended powers. The results of this work are Crisis Preparedness Plan for the particular municipality which may be applied in practice. Processing of this part of the work is based on data gathering and solving when I mainly used factual and analytical method. Consultation with experts was also important since some sources were not always topical due to frequent legal decrees changes. The data gathering was done in a qualitative way when I worked with particular valid laws, government regulations, public notices and other legal norms and with available literature data, expert publications including website information, especially from official website of individual Integrated Rescue System units and the Home Office. In the research part itself, the city of Březnice is characterized and for which the Crisis Preparedness Plan is being made. General administrative characteristics of the city and municipalities which arise under are stated here as well as demography, infrastructure, geographical and climatic characterization. Important facilities from the point of view of population protection, such as schools, school and social facilities are graphically shown here; followed by characteristics of Integrated Rescue System units in the city together with instruments which are available to them. Another important part of the thesis is the hazard analysis which I had been given by the Czech Republic Fire Brigade from the Crisis Plan of Příbram's Area with Extended Powers and it has become the crucial source while writing this work. The hazard analysis identifies 14 threats which may occur in the Příbram Area. The most important part of this thesis is, in my opinion, the hazard analysis of the city of Březnice. Not all of the hazards may appear in the administrative area of the city Březnice, however, there may occur certain threats in this administrative area which are not underpinned in the Crisis Plan of the Příbram Area. Here I have come to the key findings crisis plans of the areas with extended powers are rather general and insufficient for preparing solutions of critical situations development in administrative areas with a delegated authority. I have come to those findings after having made a SWAT analysis and thanks to this I have discovered threats which were not dealt with in the crisis plan.There are several findings as a result of this thesis and the suggestion of the Plan of Crisis Preparedness of a municipality with delegated authority of Březnice. The first finding answers the research question of "Which are the hazards threatening performance of the tasks of a municipality with delegated authority of Březnice resulting from the Crisis Plan of Příbram's Area with Extended Powers and whether the municipality is ready to deal with these threats?" The city of Březnice is not quite prepared for upcoming hazards since there are not analyzed all threats which may occur, because these plans are too general to analyze well the setting of lower administrative districts and this has become the next finding. Further, I may claim that the city of Březnice is, in many ways, independent while dealing with certain crisis situations due to sources which the city provides. This is another aim of the work. The created suggestion of the Plan of Crisis Preparedness should contribute to effective solutions during crisis situations in a municipality with delegated authority of Březnice and thanks to created cards; the solution of crisis situations should become better-arranged with the plans. The created suggestion of the mentioned plan may become a model for processing crisis documentation in other municipalities.

As barreiras impostas pelos mercados externos, relacionadas à sanidade dos produtos e o aumento dos surtos de toxicoinfecções em consumidores, devido à ingestão de alimentos industrializados, são os principais fatores que fazem com que empresas e as cadeias agroalimentares como um todo, preocupem-se com a produção de alimentos seguros (security foods). Diante desta necessidade, foi realizado este estudo, que analisou as vantagens e desvantagens da implantação de um sistema de Análise de Perigos e Pontos Críticos de Controle o APPCC em uma indústria de alimentos. O estudo foi desenvolvido em uma unidade industrial, que já faz uso do sistema há cinco anos, para a produção de embutidos e pratos prontos. A empresa já possui o sistema APPCC estruturado em toda a cadeia de produção, sendo uma das poucas empresas brasileiras a preocupar-se profundamente com esta questão. Os resultados confirmaram a eficiência do sistema para a garantia de segurança em produtos e processos, o que contribui para a melhoria da saúde pública e a diminuição das devoluções. Também podem ser citadas, as vantagens relacionadas ao comprometimento de grupo, valorização e aumento da eficiência operacional, agregação de valor aos produtos ao longo da cadeia e a confiança dos consumidores no que se relaciona a segurança alimentar. Não identificou-se desvantagens aparentes, apenas considerações referentes aos recursos humanos envolvidos, os quais necessitam de treinamento constante, para que desenvolvam suas atividades de acordo com o estabelecido pelo plano. / The barriers imposed by the external markets related to product sanitation and the increase of out breaks among consumers due to the intake of industrialized food are the main factors which make the companies and the agrofeeding chains as a whole to worry about security foods. This study was carried out as a result of this need and it analyzed the advantages and disadvantages of using a control system in food, Hazard Critical Control Points, the HACCP. The system for five years in the production of sausages and ready dishes. The company already ocons the HACCP system structured all over the production chain, being one of the fun Brazilian compances to concern delply about this matter. The results confirm the system efficienty to guarantee the product and process safety, what contributes to the improvement of public health and reduction of returns, as well as the retreat. Also, the advantages related to the group commitment, valuction and operational efficiency increase, value gathering to the products along the chain, as well as the increase in the consumers’ confidence concerning food sefaty. There are not apparent disadvantages, only considerations related to the human resources involved, which need constant supervision in order to develop their activities according to the what was stablished by the plan.

Landslides are one of the most destructive disasters that cause damage to both property and life every year. Various methodologies have been reported for landslide susceptibility mapping. Statistical methods are widely used to fit the mathematical relationship between observed landslides and the factors considered to influence the slope failure, and have shown remarkable accuracy. Among these models, frequency ratio and logistic regression models are the most popular for its simplicity and high accuracy. However, virtually all previous studies randomly extracted and reserved a portion of historical landslide records to perform the model evaluation. The purpose of this study are: 1) To produce a landslide susceptibility map for Lantau Island by GIS and remote sensing methods as well as statistical modeling techniques 2) To add extra value to the literature of evaluating their “prediction rate” (rather than “success rate”) for landslide susceptibility mapping in a temporal context. The mountainous terrain, heavy and prolonged rainfall, as well as dense development near steep hillsides make Hong Kong as one of the most vulnerable metropolitans to the risk of landslides. As there is an increasingly high demand for land resource to support the growth of economic and population, regional specific landslide susceptibility assessment in Hong Kong is necessary for hazard management and effective land use planning. Firstly, the spatial relationship among landslide occurrence and nine causative factors (elevation, slope aspect, slope gradient, plan curvature, profile curvature, NDVI, distance to river, SPI and lithology) were explored. The distribution of landslides on Lantau Island is largely governed by a combination of geo-environmental conditions, such as elevation of 200m-300m, slope gradient of 25°-35°, slope aspect of west or northwest, high degree of positive or negative plan curvature and profile curvature, sparse vegetation in terms of NDVI in 0.3-0.5 (shrub/grassland), proximity (0.6-1.2km) to fault line, presence of volcanic bedrocks (especially rhyolite lava and tuff) and high stream power index. Second, landslide susceptibility maps were generated by frequency ratio and logistic regression model, respectively. Validations of the mapping results were performed by calculating relative operating characteristics (ROC). The models, trained by 1,864 (70%) landslides records in the Enhanced Natural Terrain Landslide Inventory (ENTLI) from 2000 to 2008, were validated by subsequent 799 (30%) landslide occurred from 2008 to 2009. The validation result shows that logistic regression model (88.70%) possesses a better prediction power than frequency ratio model (78.00%) for the study area. The findings suggested that logistic regression analysis is more reliable for landslide susceptibility mapping. The resultant maps are expected to provide a scientific assessment of the risk areas with respect to landslides on Lantau Island, and to serve as a basis for decisions or justification of the Lantau development planning. Keywords: landslide susceptibility; frequency ratio; logistic regression; temporal verification; GIS; Hong Kong

As barreiras impostas pelos mercados externos, relacionadas à sanidade dos produtos e o aumento dos surtos de toxicoinfecções em consumidores, devido à ingestão de alimentos industrializados, são os principais fatores que fazem com que empresas e as cadeias agroalimentares como um todo, preocupem-se com a produção de alimentos seguros (security foods). Diante desta necessidade, foi realizado este estudo, que analisou as vantagens e desvantagens da implantação de um sistema de Análise de Perigos e Pontos Críticos de Controle o APPCC em uma indústria de alimentos. O estudo foi desenvolvido em uma unidade industrial, que já faz uso do sistema há cinco anos, para a produção de embutidos e pratos prontos. A empresa já possui o sistema APPCC estruturado em toda a cadeia de produção, sendo uma das poucas empresas brasileiras a preocupar-se profundamente com esta questão. Os resultados confirmaram a eficiência do sistema para a garantia de segurança em produtos e processos, o que contribui para a melhoria da saúde pública e a diminuição das devoluções. Também podem ser citadas, as vantagens relacionadas ao comprometimento de grupo, valorização e aumento da eficiência operacional, agregação de valor aos produtos ao longo da cadeia e a confiança dos consumidores no que se relaciona a segurança alimentar. Não identificou-se desvantagens aparentes, apenas considerações referentes aos recursos humanos envolvidos, os quais necessitam de treinamento constante, para que desenvolvam suas atividades de acordo com o estabelecido pelo plano. / The barriers imposed by the external markets related to product sanitation and the increase of out breaks among consumers due to the intake of industrialized food are the main factors which make the companies and the agrofeeding chains as a whole to worry about security foods. This study was carried out as a result of this need and it analyzed the advantages and disadvantages of using a control system in food, Hazard Critical Control Points, the HACCP. The system for five years in the production of sausages and ready dishes. The company already ocons the HACCP system structured all over the production chain, being one of the fun Brazilian compances to concern delply about this matter. The results confirm the system efficienty to guarantee the product and process safety, what contributes to the improvement of public health and reduction of returns, as well as the retreat. Also, the advantages related to the group commitment, valuction and operational efficiency increase, value gathering to the products along the chain, as well as the increase in the consumers’ confidence concerning food sefaty. There are not apparent disadvantages, only considerations related to the human resources involved, which need constant supervision in order to develop their activities according to the what was stablished by the plan.

Magister Scientiae - MSc / In South Africa there is a need within the milling industry for controlling food safety especially due to customer's demands and government's regulations. The best way to ensure food safety is with the implementation of a HACCP based food safety system. Therefore, the principal aim of this study was to develop a generic HACCP model for the flour milling industry. Afterwards this generic model can then be adapted for each specific mill and its needs. / South Africa

This master`s thesis deals with a hazard analysis of selected machinery according to an actual legislative documents in Slovakia, which were taken over from Europien Union directives. The thesis is focused on exploring legislation related to the safety of toolroom workshop in the Czech Republic and Germany. Because of that was done the recherché of harmonized standards in these countries. Subsequently is made the identification of hazards under recherched standards and assessment of control system based on the performance level of the system. In the end are all obtained data evaluated and the precautionary measures are suggested. With taking care of economic factors are finally proposed the possibilities of the elimination of risks.

<p>Extra-terrestrial habitats will be embedded in challenging environments and involve complex and tightly coupled combinations of hardware, software, and humans. Such systems will be exposed to many risks, both known and unknown, and anticipating all failures and environmental impacts will not be possible. In addition, complexity and tight coupling in these systems means space habitats are likely to experience system accidents, which arise not only from the failure of individual components but also from the interactions among components. Therefore, we propose a control-theoretic approach to resilient space habitat design, which is grounded in system safety engineering and goes beyond event and component-centric failure models underlying conventional risk-based design. We model the system from a state-based perspective where the habitat is in one of four distinct types of states at a given time: nominal, hazardous, safe, or accident. The habitat transitions from a nominal state to a hazardous state via disruptions, and further to safe and accident states via triggers. We use safety controls to prevent the system from entering or remaining in a hazardous or accident state, or to transition the system into a temporary safe state or back to a nominal state. We develop a safety control option space, from which designers choose the best control strategy to meet resilience, performance, cost, and other system goals. We show the development of a control effectiveness metric, which is defined to assess how well safety controls address the hazardous state or disruption for which they are designed. The control effectiveness metric is one dimension of the overall hazard mitigation evaluation, which should also include aspects like cost and launch mass. We validate this approach by assessing individual safety controls in the Modular-Coupled Virtual Testbed (MCVT). This physics-based habitat simulation models complex disruption scenarios which include unique combinations of hazardous states and safety controls. The MCVT allows for the activation of individual (and sets of) safety controls of varying control effectiveness values to evaluate habitat resilience under different control architectures. Using this simulation, we evaluate the control effectiveness metric to determine whether the definition is appropriate to select safety controls that lead to desired habitat resilience. Completing the validation of this metric is the first step towards the validation of the overall control-theoretic approach to resilient space habitat design. </p>