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1
Ashoor, Khalil Layla Ali. "Performance analysis integrating data envelopment analysis and multiple objective linear programming." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/performance-analysis-integrating-data-envelopment-analysis-and-multiple-objective-linear-programming(65485f28-f6c5-4eff-b422-6dd05f1b46fe).html.
Full textAbstract:
Firms or organisations implement performance assessment to improve productivity but evaluating the performance of firms or organisations may be complex and complicated due to the existence of conflicting objectives. Data Envelopment Analysis (DEA) is a non-parametric approach utilized to evaluate the relative efficiencies of decision making units (DMUs) within firms or organizations that perform similar tasks. Although DEA measures the relative efficiency of a set of DMUs the efficiency scores generated do not consider the decision maker’s (DM’s) or expert preferences. DEA is used to measure efficiency and can be extended to include DM’s and expert preferences by incorporating value judgements. Value judgements can be implemented by two techniques: weight restrictions or constructing an equivalence Multiple Objective Linear Programming (MOLP) model. Weight restrictions require prior knowledge to be provided by the DM and moreover the DM cannot interfere during the assessment analysis. On the other hand, the second approach enables the DM to interfere during performance assessment without prior knowledge whilst providing alternative objectives that allow the DM to reach the most preferred decision subject to available resources. The main focus of this research was to establish interactive frameworks to allow the DM to set targets, according to his preferences, and to test alternatives that can realistically be measured through an interactive procedure. These frameworks are based on building an equivalence model between extended DEA and MOLP minimax formulation incorporating an interactive procedure. In this study two frameworks were established. The first is based on an equivalence model between DEA trade-off approach and MOLP minimax formulation which allows for incorporating DM’s and expert preferences. The second is based on an equivalence model between DEA bounded model and MOLP minimax formulation. This allows for integrating DM’s preferences through interactive steps to measure the whole efficiency score (i.e. best and worst efficiency) of individual DMU. In both approaches a gradient projection interactive approach is implemented to estimate, regionally, the most preferred solution along the efficient frontier. The second framework was further extended by including ranking based on the geometric average. All the frameworks developed and presented were tested through implementation on two real case studies.
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Lasmar, Moisa Medeiros. "Detecção de soro lácteo por cromatografia líquida de alta eficiência em amostras de leite cru conservadas com bronopol." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/MOLE-7E6J83.
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The objective of this study was to evaluate the viability of the use of raw milk samples conserved with bronopol in the detection of cheese whey by High Performance Liquid Chromatography (HPLC). The samples added with bronopol were stored in two temperatures (7 and 30º C) and the control samples (without preservative) were kept under freezing. All the groups were tested for the time of storage up to eight days. In each group were added five levels of cheese whey (0%, 2%, 5%, 10% and 20%). There was no difference (p > 0.05) among the treatments thus, it is possible to use samples of raw milk conserved with bronopol in the detection of cheese whey by HPLC. The storage time and temperature did not interfere in this methodology for samples conserved with bronopol stored cooled or at room temperature up to eight daysO objetivo deste trabalho foi avaliar a viabilidade do uso de amostras de leite cru conservadas com bronopol na pesquisa de soro de queijo por cromatografia líquida de alta eficiência (CLAE). Foram testadas duas temperaturas de armazenamento (7 e 30º C) para as amostras contendo bronopol. As amostras sem conservante (controle) foram mantidas sob congelamento. Todos os grupos foram testados quanto ao tempo de estocagem por até oito dias. A cada grupo, foram adicionados cinco níveis de soro de queijo (0%, 2%, 5%, 10% e 20%). Não houve diferença (p > 0,05) entre os tratamentos, possibilitando concluir que é possivel utilizar amostras de leite cru conservadas com bronopol para pesquisa de soro de queijo em leite por CLAE. O tempo e a temperatura de armazenamento não interferiram nessa metodologia de pesquisa para amostras conservadas com bronopol, estocadas sob refrigeração ou à temperatura ambiente por até oito dias
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Colleta, Ricardo Mazon Della. "Diagnóstico das condições higiênico-sanitárias em laticínios localizados nas regiões do Vale do Jequitinhonha, Mucuri e Norte de Minas." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/MOLE-7EDK76.
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Thirty-three dairies located in Vale do Mucuri, Vale do Jequitinhonha and North of Minas Gerais State, under federal, state or city inspection, registered in a food purchasing program aimed to distribute pasteurized milk to low income population sponsored by the Minas Gerais government, were evaluated. The adequation of those establishments in Good Manufacturing Practice were carried out using a check-list. The most common non conformities were related to general manufacturing and general quality control aspects, in which the highest number of itens with 100% of stablishment reproval were reported. By the results gathered, was concluded that none of the visited establishments were completly adequated to Good Manufacturing Pratices, then the quality of dairies products produced by them could not be guaranteededTrinta e três laticínios localizados no Vale do Mucuri, Vale do Jequitinhonha e Norte de Minas Gerais, sob inspeção federal, estadual ou municipal, cadastrados em um programa de aquisição de alimentos do governo de Minas Gerais para distribuição de leite pasteurizado para população de baixa renda foram avaliados. Utilizando-se um check-list, verificou-se a adequação desses estabelecimentos às Boas Práticas de Fabricação. Observou-se que as não conformidades mais observadas foram encontradas nos aspectos gerais de fabricação e nos aspectos gerais de controle de qualidade, nos quais se observou a maior quantidade de itens com 100% de reprovação dos estabelecimentos. Pelos resultados obtidos, conclui-se que nenhum dos estabelecimentos visitados se adequou completamente ao Programa de Boas Práticas de Fabricação, não sendo, portanto, garantida a qualidade dos produtos lácteos produzidos
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Peres, Nadia David. "Detecção de Listeria monocytogenes em leite: sensibilidade e especificidade de Reação em Cadeia de Polimerase (PCR)." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/MOLE-7EDJT7.
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The aim of this work was to detect Listeria monocytogenes added in milk, after selective
enrichment period, by PCR technique. A PCR technique using the primers LM1/LM2 and a
multiplex PCR with IAP1/IAP2 e LMA/LMB was standardized. The conventional method of L.
monocytogenes detection was compared from milk samples with different bacterial count added
with various L. monocytogenes concentrations. The DNA extraction methods using phenolchloroform
and thermal split were compared. The DNA extraction and the conventional
methods showed the same result in detecting the bacterium in samples of sterilized milk. In milk
samples with any initial contamination, the conventional methodology was sensitive and PCR
from enrichment broth can not detect L. monocytogenes added, independently of the extraction
method used. The identification time of L. monocytogenes decreased using the DNA extraction
by the strain split method using suspect colonies that grew in Oxford and PALCAM, in
substitution of identification phenotypes testsO objetivo deste trabalho foi detectar Listeria monocytogenes inoculada em leite, após um período de enriquecimento seletivo, por meio da técnica de PCR. Foi feita a padronização de uma PCR utilizando os oligonucleotídeos LM1/LM2 e de uma PCR multiplex com os oligonucleotídeos IAP1/IAP2 e LMA/LMB. Listeria monocytogenes foi inoculada em várias concentrações em leite esterilizado desnatado e em leite cru integral com dois níveis diferentes de contaminação. A PCR padronizada foi aplicada para identificar a bactéria inoculada experimentalmente e foi comparada com o método convencional de detecção de L. monocytogenes. Foram comparados, também, os métodos de extração de DNA utilizando fenolclorofórmio e por lise térmica, a partir de um caldo de cultura e diretamente da colônia suspeita. Somente foi possível identificar L. monocytogenes por PCR no leite esterilizado desnatado, após 48 horas de enriquecimento em meio seletivo (LEB). Neste caso, a sensibilidade do teste foi de 1 UFC/ml de leite, a mesma sensibilidade da metodologia convencional. Quando inoculada em leite cru integral com contaminação bacteriana, L. monocytogenes só foi detectada pela metodologia convencional, com uma sensibilidade de até 2 UFC/ml (leite com baixa contaminação). Foi possível reduzir o tempo de identificação de L. monocytogenes, substituindo os testes fenotípicos de identificação pela PCR padronizada, utilizando DNA bacteriano extraído pelo método de lise térmica, diretamente da colônia suspeita
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Paiva, Regina Marcia Bahia. "Avaliação físico-química e microbiológica de leite pasteurizado tipo C distribuído em programa social governamental." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/MOLE-7EDJZ5.
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The microbiological and physical-chemical quality of 151 pasteurized type C milk samples
distributed by a governmental program in Minas Gerais state was analyzed. Milk quality
was also traced to the dairies, in accordance to the type of inspection, as well as to the
produce regions and season. For the microbiological analyses, means were: 6.09 x 101
MPN/mL and 2.47 x 101 MPN/mL for coliforms at 30°C and 45°C, respectively; 1.38 x 105
CFU/mL for counting of aerobic mesophilic bacteria; and 1.31 x 105 CFU/mL and 2.54 x
104 CFU/mL for counting of Staphylococcus spp. and Staphylococcus aureus, respectively.
Salmonella spp. was identified in 121 (2.48%) samples. For the physical-chemical analyses,
means were: 1.031 for density at 15°C, 12.40% for total solids content, 3.60% for fat,
8.80% for non-fat solids, 15.32°D for titratable acidity, and 0.525°H for freezing point.
Mean of water added to milk was 2.4%. Positive result for alkaline phosphatase activity
was observed in 23.18% samples and 22.52% presented negative activity of
lactoperoxidase. Difference (p>0.05) was not observed among the dairy industries under
different levels of inspection, and among different regions the State for the microbiological
aspects; however, difference was observed (p<0.05) for the majority of the physicalchemical
aspects. Difference was not observed among the seasons of the year concerning
microbiological and physical-chemical aspects. It was concluded that the pasteurized milk
distributed by the governmental program had unsatisfactory quality; deficient composition
and can represent a potential risk to the health of the consumersEste trabalho teve como objetivo analisar a qualidade físico-química e microbiológica de 151 amostras de leite pasteurizado tipo C distribuído em programa social governamental no Estado de Minas Gerais, assim como associar a qualidade deste leite aos laticínios conveniados ao programa de acordo com seu tipo de inspeção, meso regiões produtoras e época do ano. Para as análises microbiológicas, foram obtidas médias de 6,09 x 101NMP/mL e 2,47 x 101 NMP/mL para coliformes a 30°C e a 45°C, respectivamente; 1,38 x 105 UFC/mL para contagem de microrganismos mesófilos aeróbios, e 1,31 x 105 UFC/mL e 2,54 x 104 UFC/mL para contagem de Staphylococcus spp. e Staphylococcus aureus, respectivamente. Salmonella spp. foram identificadas em 2,48% de 121 amostras pesquisadas. Para as análises físico-químicas, foram obtidas médias de 1,031 g/mL para densidade relativa a 15°C, 12,40% de extrato seco total, 3,60% para gordura, 8,80% para extrato seco desengordurado, 15,32°D para acidez titulável e -0,525°H para crioscopia. A média de adição de água ao leite foi de 2,4%. Resultado positivo para a pesquisa de fosfatase alcalina foi observado em 23,18% e 22,52% apresentaram resultado negativo para a pesquisa de lactoperoxidase nas 151 amostras analisadas. Não foi observada diferença (p>0,05) entre os estabelecimentos sob diferentes níveis de inspeção e entre diferentes meso regiões para os parâmetros microbiológicos. No entanto, observou-se diferença (p<0,05) para a maioria dos parâmetros físico-químicos. Também não foi observada diferença (p>0,05) entre as épocas do ano em que o leite foi produzido para os aspectos microbiológicos e físico-químicos. Desta forma, concluiu-se que o leite pasteurizado distribuído no programa social governamental possui qualidade insatisfatória, composição centesimal deficiente e pode representar risco potencial à saúde de seus beneficiários
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Lima, Liana Lara. "Características de produção e qualidade do leite cru captado por usinas de leite na Zona da Mata de Minas Gerais." Universidade Federal de Minas Gerais, 2007. http://hdl.handle.net/1843/MOLE-7EDJDG.
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In 2002, the Brazilian government implemmented the Normative Instruction 51 (IN-51)
establishing an important step to improve milk quality in this country. According to the
patterns required by the IN-51, this study was conducted with 183 samples of raw milk
collected from different properties, during the summer of 2006, in the State of Minas
Gerais, Brazil. The evaluated milk was produced in properties regulated by the state
inspection service and the parameters used were from this national legislation: total
bacterial count, somatic cell count, milk composition (fat, protein, total solids, lactose
and solids non fat), freezing point and qualitative tests for detection of inhibitory
substances in milk. Questionnaires containing questions about hygienic and production
practices were filled out during interviews with the producers. It was verified that the
main disagreement with the IN-51 patterns was total bacterial count. The conclusion of
the study is that poor hygienic practices during milking and low level of technical
informations were the major problem for milk qualityEm 2002, o governo brasileiro através do Ministério da Agricultura e do Abastecimento publicou a Instrução Normativa 51 (IN-51), importante instrumento legal para melhorar a qualidade do leite. O presente estudo foi conduzido com 183 amostras de leite cru provenientes de variadas propriedades localizadas na Zona da Mata de Minas Gerais, conforme os padrões e parâmetros estabelecidos na IN-51, sendo que as coletas compreenderam o verão de 2006. O leite avaliado foi coletado de estabelecimentos sob inspeção sanitária estadual utilizando os parâmetros padronizados à legislação federal: contagem bacteriana total, contagem de células somáticas, composição do leite (gordura, Proteína, lactose, EST e ESD), índice crioscópico e testes qualitativos para detecção de resíduos de antimicrobianos no leite. Questionários com os produtores também foram utilizados, contendo questões sobre práticas de higiene e produção animal. Verificou-se que o resultado de contagem bacteriana total foi o que apresentou maior percentagem de não conformidade com a IN-51. A conclusão deste trabalho foi que a baixa qualidade do leite estava relacionada a pouca higiene durante a ordenha e ao baixo nível de informações técnicas dos produtores
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Johnsson, Anders, and Petter Thörne. "Mold : kandidatexamensarbete." Thesis, Konstfack, Inredningsarkitektur & Möbeldesign, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-2740.
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Som det ser ut idag kostar arbetskraften mer än materialet vid industriell tillverning av möbler. Materialet som inte passar normen sorteras bort. Det mer och mer låsta systemet som används idag klarar/vill inte bearbeta det material som inte är perfekt. Det är svårt att motivera tiden det tar i förhållande till kostnaden av sparat material. Vi är intresserade av ett annat förhållningsätt av resursanvändning, material, yta, normer, formgivning och förhållande till möbelproducenter. Vårt kandidatexamensarbete bygger på en vidareutveckling av idéer kring ett bord vi tidigare formgivit. Bordets koncept bygger på att spänna ihop obehandlade överblivna lister med metallband till en limfri konstruktion. Iden att använda spillmaterial tycker vi är intressant och tillför ett mervärde. Men när det gäller bordet, då tillverkningen drar mer åt slöjdhållet, blir det mer som poesi. Det tillverkas i för liten skala för att göra skillnad att använda spillmaterial. Därför vill vi ta det ett steg längre och förhålla oss med spillmaterialet i relation till industrin och serieproduktion.Kandidatexamen 2009
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Choudrey, Sajaval, and Kim Hiltunen. "Moln för Försvarsmakten." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172291.
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An organization with such a big responsibility as the Swedish armed forces constantly needs to find new ways to develop and increase their effectiveness when it comes to management, administration and organization. An information system with cloud computing as a basis would mean a modernization of the Swedish armed force’s administration and could potentially live up to the security standards within the organization. The primary goal of the thesis is to present and analyze cloud solutions that the Swedish armed forces eventually could integrate in to their activities. The first part of the thesis gives an introduction to the cloud technology with the security aspects of a cloud as a large part of the focus. This is followed by information about the Swedish armed forces and their current IT-systems, as well as information on the requirements they have for the implementation of new IT-systems within the organization. Two different cloud services from VMware and Cloudstack have been examined in order to see whether these could be used for a future implementation. The focus of the analysis lies heavily on the security issues and questions, that arise, for each solution, as the security aspect is something that is very important for the Swedish armed forces. The thesis also touches on the economical benefits and economical difficulties associated with cloud service implementation. The purpose of this is to see whether an eventual implementation is beneficial or not.En organisation med ett så stort ansvar som Försvarsmakten behöver ständigt nya sätt att utvecklas och effektivisera sin drift, administration och organisation. Ett informationshanteringssystem i molnmiljö som grund skulle innebära en modernisering av administrationen inom organisationen och har potentialen att uppfylla Försvarsmaktens förbättringskrav. Arbetet har som huvudmål att ta fram och analysera lösningsförslag för hur Försvarsmakten skulle kunna använda sig av molnbaserade IT-system. I den första delen av arbetet ges en grundläggande introduktion till molnteknologin som även innefattar säkerhetsaspekter. Efter detta presenteras allmän information om Försvarsmakten, deras nuvarande IT-system samt de krav som ställs när det kommer till implementation av nya IT-system inom organisationen. Två olika molntjänster från WMware och Cloudstack undersöks för att se hur dessa skulle kunna användas för en eventuell implementation inom Försvarsmakten. Analysen av de två olika molntjänsterna fokuserar främst på säkerhetsaspekter, då det är ett viktigt fokusområde för Försvarsmakten. Ett annat område som arbetet har som syfte att undersöka är ekonomin för molntjänster. Detta för att se om en eventuell implementation är lönsam för Försvarsmakten eller inte.
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Naumann, Johann Gottlieb. "Missa g-moll." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-179809.
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1763, nachdem Sachsen zum Ende des Siebenjährigen Krieges große Einbußen erlitten hatte, kehrte der dreiundzwanzigjährige Johann Gottlieb Naumann nach sechsjähriger Lehrzeit in Italien nach Dresden zurück, im Gepäck diese Messkomposition. Sie wurde der musikverständigen Kurfürstin-Witwe Maria Antonia Walpurgis übergeben, die nach der Aufführung der Messe in der Hofkirche dem jungen Naumann das Amt eines 2. Kirchencompositeurs anbot: Grundlage für seine spätere Stellung als Dresdner Hofkapellmeister. Die Messe als Ganzes ist als Quelle nicht mehr überliefert, da Naumann Teile in anderen Werken verwendete. Interessanterweise wurden zwei Abschriften für den Wiener Hof angefertigt. Hieraus wurde der Notentext nach umfangreichen Recherchen von Katrin Bemmann rekonstruiert und das Werk erstmals in einer modernen Ausgabe vollständig vorgelegt.
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Papoulidis, Konstantinos. "Fehlertoleranz in Mole." [S.l.] : Universität Stuttgart , Fakultät Informatik, 1999. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8385923.
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Wang, Xiaoyan, and Parthkumar Patel. "Transfer Mold Design." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39904.
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The following report conducted with the collaboration with the University of Halmstad and Halmstad Gummi Fabric (HGF) rubber company which is in Halmstad. The focus on the project is to reduce the cost of the transfer mold material, increase efficiency of production, save energy and redesign the transfer mold. The methodology used in this project is based on the Quality Functional Deployment (QFD) which is widely appreciated globally in the product development, and other product development and mold design methods, FEM analysis are applied to achieve the goals. The implementation of this methods is efficient and beneficial to reduce the material cost and redesign the transfer mold without compromising the initial quality of the product. This thesis resulted in, for the transfer molding plates we recommended the proper material for the plates and the insulation parts. And we redesign the transfer mold plates and optimized the design for reducing the cost. We did FEM analysis for optimization purpose, and the benefits to optimizing this is to reduce the material cost, machining cost and labour cost. As well as, we add the insulation plates in the design so that the transfer molding plates works efficiently with the reducing the energy wastes.
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Moll, Karen Margaret. "Diatom biofuels: optimizing nutrient requirements for growth and lipid accumulation in YNP isolate RGd-1." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/moll/MollK1212.pdf.
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The world's crude oil supply is decreasing at an alarming rate and no longer represents a long-term solution to meet energy needs. Development of renewable energy sources is required to meet transport fuel demands. Algal biofuels represent a potentially viable option. Diatom strain, RGd-1, isolated from Yellowstone National Park, produces high concentrations of lipids that can be used for biodiesel production. To increase cell numbers, RGd-1 was grown in six silica concentrations: without added silica, four silica concentrations within the soluble range (0.5-2mM), and one just above the soluble range (2.5 mM). Increasing the silica concentration resulted in an increase in total cell numbers and dry cell weight (DCW) with R ²=0.965. Silica depletion was verified by inductively coupled plasma mass spectrometry (ICP-MS). When grown in higher silica concentrations the medium reached a higher pH, which remained elevated. Nile Red fluorescence can be used as measurement of triacylglycerol (TAG). Once silica was depleted, Nile Red fluorescence increased. Unlike green algae and other diatoms, nitrate was never depleted when using the standard Bolds Basal Medium concentration (2.94 mM). RGd-1 never depleted nitrate from the growth medium and utilized only 1/3 of the original nitrate concentration (1 mM) by the time cells reached stationary phase. Therefore, the nitrate concentration was decreased to 1mM to induce a dual nitrate and silica stress. To increase the lipid content further, sodium bicarbonate was added to cells grown with each nitrate concentration (2.94 and 1 mM NO ₃-). Coupling nitrate limitation with sodium bicarbonate addition resulted in higher Nile Red fluorescence. RGd-1 fatty acids were primarily observed as C16:0, C16:1, C18:1-3 and C20:5, averaging at approximately 35, 30, 16 and 10%, respectively of the total lipid content. With exception of cells grown without added silica, the percent lipid content was approximately the same (30-40% (w/w) TAG (Triacylglycerol) and 70-80% (w/w) fatty acid methyl ester (FAME) grown under all conditions within the soluble range. However, when factoring in the dry cell weight from each system, it was observed that the TAG and FAME yields increased with silica concentration when normalized to DCW.
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Nilsson, John. "3D-visualisering av moln." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-455.
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Moln har många egenskaper som gör dem till väldigt utmanande objekt att åskådliggöra i datorgrafikapplikationer. Dess form är högst oregelbunden och med svårdefinierade gränser. De har transparenta egenskaper och ljuset sprids i molnen och skapar ljusfenomen som är svåra att beskriva. Till detta kommer även att alla människor har en klar uppfattning hur moln ser ut och kan därför lätt upptäcka om de renderade molnen inte ser ut som förväntat.
Målet med denna rapport är att hitta ett bra sätt att modellera tredimensionella moln samt rendera dessa i realtid. Det presenterade resultatet beskriver en enkel men effektiv modelleringsmetod där ellipsoider används. Dessa moln visualiseras därefter med en mängd billboardar. Denna renderingsmetod ger bra prestanda och hanterar objekt inuti moln på ett bra sätt.
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Zuyev, Konstantin Sergeevich. "Processing studies in reactive in-mold coating for thermoplastic substrates." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1087449857.
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Thesis (Ph. D.)--Ohio State University, 2004.Title from first page of PDF file. Document formatted into pages; contains xviii, 226 p. : ill. (some col.). Advisor: Jose M. Castro, Dept. of Industrial and Systems Engineering. Includes bibliographical references (p. 225-226).
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Quiroz, Sciaraffia Tamara Andrea. "MOP Valparaíso." Tesis, Universidad de Chile, 2010. http://repositorio.uchile.cl/handle/2250/100172.
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El proyecto establece un proceso de modernización del MOP se desarrolla en dos líneas complementarias y convergentes: una es la llamada “Infraestructura 2020” que consiste en una proyección de ese año, para saber qué infraestructura necesitará Chile y, sobre esa base, qué organización se requiere para llevarla a cabo. La segunda es una “Reforma Integral” para fortalecer las áreas estratégicas del Ministerio como la planificación, gestión de contratos y de proyectos, estándares de servicio y fiscalización. Esta línea incluye la reforma organizacional a través de una nueva estructura legal y organizacional que definirá los nuevos roles y responsabilidades del MOP.
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Bommaraju, Ramaprasad V. "Mold behavior, heat transfer and quality of billets cast with in-mold electromagnetic stirring." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28628.
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Mold behavior, mold-related quality and the columnar-to-equiaxed transition influenced by in-mold EMS were examined by performing trials at two steel companies, metallurgical examination of the billet samples and mathematical modelling. The thermal fields in the walls of billet molds (102 X 102mm and 127 X 178mm) and in the cooling water were monitored by a system of thermocouples as the EMS was switched on and off during the continuous casting of several heats. The effect of electro-magnetic stirring on mold heat extraction was found to be negligible. The mold temperatures and cooling water temperatures are strongly dependent on the mold/billet gap which is affected by dynamic distortion of the mold tube. In the case of the square mold, the time-dependent mold distortion resulted from boiling adjacent to the cold face due to low water velocity and poor water quality. In the rectangular mold, differential expansion of the wide and narrow faces of the mold led to periodic wall movement at the midface causing cycling in the mold and water temperature. Both effects completely dominated any potential influence of EMS on mold heat extraction.
Cooling water velocities measured in separate experiments and the mold temperature profiles were input to a two-dimensional heat-flow model to establish mold heat-flux profiles. A steep taper of 2.6 %/m in the upper regions of the mold increased heat extraction compared to previously published heat-flux data in 0.8 %/m tapered-molds. However, due to the periodic wall movement in the rectangular mold, the heat flux declines to lower values periodically. The calculated heat flux profiles were employed in a one-dimensional transient heat flow model to predict superheat removal from the liquid pool under a variety of assumed fluid flow conditions. The major heat flow effect of EMS was inferred to be one of increasing the convective heat flow at the solidification front leading to earlier superheat extraction from the liquid steel.
Solidification structures in billet samples collected during the trials were examined. The columnar-to-equiaxed transition in continuous casting takes place provided all the superheat is removed from the melt and there is a sufficient density of nuclei present in the pool. At superheats of <20° C in the tundish, high heat extraction in the mold and remelting of the mold generated nuclei facilitate the removal of the superheat well within the mold and the columnar-equiaxed transition is triggered after 10-15 mm of shell growth on both the inside and outside radius faces. At higher superheat in the tundish, the liquid pool leaves the mold with residual superheat which takes longer to remove because of the declining fluid flow. Even though all the superheat is removed lower in the machine, the columnar-equiaxed transition occurs only if dendrite debris generated in the vicinity of the mold has survived in their descent through the superheated liquid. The effect of carbon on the columnar-to-equiaxed transition appears to stem from its influence on facilitating dendrite arm remelting and the survival of the dendrite fragments till the pool reaches sub-liquidus temperature. EMS extracts more superheat by maintaining a steep temperature gradient in the thermal boundary ahead of the solidification front and achieves an earlier columnar-equiaxed transition.
Electro-magnetic stirring appears not to affect either the average depth or the variation of depth of oscillation marks across a given face. However, the electro-magnetically driven flow dominates the turbulance at the meniscus due to the input stream and stabilizes a meniscus shape with the result that the oscillation marks are also of a well-defined shape unlike the unstirred billets.
No influence of EMS was found on the formation of "hooks" or the fine equiaxed crystal zone near the surface. The influence of EMS on inclining the growing dendrites appears to not come into effect until about 1 mm of shell has formed. It appears that the existence of the momentum boundary layer where the velocity of the rotating steel falls to zero at the surface is the reason for the absence of the influence of EMS on the subsurface solidification.
Rhomboidity and off-corner crack formation were found to depend, as reported by previous researchers, on mold distortion and its dynamic nature. The absence of any effect of EMS on these defects is due to its lack of effect on mold heat transfer and thus mold distortion.Applied Science, Faculty of
Materials Engineering, Department of
Graduate
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趙佩文 and Pui-man Chiu. "Mitochondrial study in hydatidiform mole." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31970278.
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Chiu, Pui-man. "Mitochondrial study in hydatidiform mole." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23373131.
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Yu, Liyong. "Experimental and numerical analysis of injection molding with microfeatures." Columbus, Ohio : Ohio State Uniersity, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1080318678.
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Thesis (Ph. D.)--Ohio State University, 2004.Title from first page of PDF file. Document formatted into pages; contains xvi, 202 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Kurt W. Koelling, Dept. of Chemical Engineering. Includes bibliographical references (p. 196-202).
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Barabash, Victoria. "Investigation of polar mesosphere summer echoes in northern Scandinavia /." Kiruna : Swedish Institute of Space Physics (Institutet för rymdfysik), 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176.
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Junior, Manuel Fernando Queiroz dos Santos. "Aspectos do cancro mole no município de São Paulo." Universidade de São Paulo, 1993. http://www.teses.usp.br/teses/disponiveis/6/6132/tde-11012018-103429/.
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No período compreendido entre 1985 a 1989 foram registrados no Serviço de Dermatologia Sanitária da Faculdade de Saúde Pública de Universidade de São Paulo 202 pacientes portadores de cancro mole, o que compreendeu o universo de estudo. Mapeou-se os possíveis focos geográficos da doença distribuídos pelos 11 Distritos, 48 Subdistritos e 8 Escritórios Regionais de Saúde (ERSA) que compõe o Município de São Paulo. Os subdistritos de Butantã e Santo Amaro concentraram o maior número de casos (55) e o ERSA-1 apresentou 74 casos (36,6 por cento ). A idade concentrou-se entre 20 e 30 anos, havendo um aumento progressivo em menores de 20 anos. Os homens participaram numa proporção de 7:1 mulher, com tendência a diminuir. Houve nítida redução da participação da prostituição como fonte de contágio. O período de incubação variou de 1 a 41 dias com 60,5 por cento nos primeiros 7 dias. A lesão foi única em 33,7 por cento dos casos masculinos. O tempo da doença reduziu-se e o enfartamento inguinal ocorreu em 49 por cento dos casos. Referiram passado venéreo 123 pacientes variando de 1 a mais de 5 episódios. A soropositividade para sífilis revelou-se alta (28,2 por cento ). Em um outro período (1989-1991) foram pesquisados 42 casos de cancro mole para Anticorpos anti-Vírus da Imunodeficiência Humana (VIH-1) confirmados pelo WESTERN BLOT, resultando 16,6 por cento de sororeatividade. O estudo desta soropositividade revelou que o risco da mulher portadora de um cancro mole apresentar-se infectada pelo VIH-1 parece ser maior do que para o homem. Diante destes resultados, recomenda-se a implantação imediata da notificação compulsória de todas as Doenças Sexualmente Transmissíveis, bem como a pesquisa rotineira para sífilis e para o VIH-1 nas populações de risco identificadas.Two-hundred-and-two chancroidal patients registered at the Sanitarian Dermatological Service of the University of São Paulo School of Public Health in São Paulo city, State of São Paulo, Brazil, within the period from 1985 to 1989, comprehended our universe of study. Possible geographical focuses of the disease, distributed among the eleven districts, forty-eight subdistricts and eight Regional Health Offices (ERSAs) which make up the São Paulo municipality, were mapped out. The Butantan and Santo Amaro subdistricts were the ones in which the greatest number of cases were concentrated (55 per cent ); ERSA-1 presented 74 cases (36.6 per cent ). In what age is concerned to, the age group 20-30 showed the highest concentration of cases, indicating a progressive increase in individuais below 20. Male patients participated in a proportion of 7:1 in relation to women, with a diminishing tendency in the period. There was a marked reduction of prostitution as a source of contagion. The incubation period varied from 1 to 41 days, with 69.5 per cent of the cases occuring in the first seven days. Single-lesion was presented in 33.7 per cent of the male cases. The length of the disease were reduced in the period studied. Inguinal infarction occured in 49 per cent of the cases. One-hundred and twenty-three patients referred venereal past, varying from one to more than five episodes. Serological tests for syphilis showed a high percentage (28.2 per cent ). In another period (1989-1991), 42 cases of chancroid were searched for antiviral antibodies of human immunodeficiency vírus (HIV-1), supported by the Western-Biot, resulting in 16.6 per cent of seroactivity. The study of this seroactivity indicated that the risk for a woman with chancroid to present herself infected by the HIV-1 appears to be greater than the one for men. In face of these data, the immediate implantation of a compulsory notification programme regarding all sexually transmitted diseases, as well as a routine search for syphilis and HIV-1 in identified risk populations, are recommended.
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Russell, Carrie L. "Comparison of culturable/viable airborne mold and total mold spore sampling results in single-family dwellings." Virtual Press, 2002. http://liblink.bsu.edu/uhtbin/catkey/1233192.
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This study was conducted to determine and compare indoor mold concentrations of total mold, five target taxa, and unidentified mold taxa using culturable/viable mold sampling (on DG-18 and MEA) and total mold spore sampling concurrently. Samples were taken within two locations of 22 single-family dwellings. Paired comparisons of culturable/viable mold concentrations revealed that DG- 18 samples had significantly higher total colony counts than MEA samples and near significantly higher counts of Aspergillus. Total mold spore concentrations were an average of 16-21 times greater than culturable/viable mold concentrations. The use of both sampling techniques concurrently allowed apparent viability ratios to be calculated. Significant differences in apparent viability were observed on the two media for total mold and Cladosporium, and near significance for Aspergillus; higher ratios were observed using DG-18. These studies indicate that DG-18 may be a superior medium for culturable/viable mold sampling and significant apparent viability differences exist among mold taxa quantified.Department of Natural Resources and Environmental Management
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Kamf, Tobias. "Ergo Mopp : Från koncept till produkt." Thesis, Uppsala University, Department of Engineering Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126683.
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This thesis describes the work process and the results for the development of a newkind of ergonomic cleaning mop, ranging from basic concept to a virtually productionready digital prototype. The project was made in cooperation with, Ömer Altun, whowas also the project supervisor, and whose plan it is to launch this new product onthe market in a foreseeable future. The mop is meant to be used by both professionalcleaning staff and ordinary home users. What makes this product unique is that it hasa movable center piece that simplifies the cleaning under low furniture.The work began with the establishment of a product requirements specification andlater a study of similar products and existing functional models was conducted. Afterthese surveys the work began with refining the existing concepts in order to makethem more complete. In consultation with Ömer, further refining of one of these newconcepts was conducted, but was split into seven smaller steps.After the initial refining process, effort shifted into the investigation and selection ofappropriate materials and manufacturing methods. At this stage, two experimentswere also conducted and subsequently used to support the final decisions concerningthe choice of materials and design.When the materials and methods were adopted, a detailed CAD model of the wholeproduct and related technical drawings was made and also a number of FEM-analyseson all critical details, to ensure that performance requirements were met, wasconducted. These CAD models are closer described in detail in the chapter“Detaljkonstruktion”.In the final sections of discussion and evaluation are suggestions for furtherimprovements. And also some evaluation of the work process and the problems andsolutions encountered during the project execution.
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Ledermann, Thomas H. "Submerged mold casting using heat pipes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0001/MQ44006.pdf.
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Szakál, Jan. "Antonín Dvořák:Koncert pro violoncello h-moll." Master's thesis, Akademie múzických umění v Praze. Hudební fakulta AMU. Knihovna, 2008. http://www.nusl.cz/ntk/nusl-78168.
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This work is concipated for two parts. The first one introduce us with very beginning of Dvořák's career of compositioning, including A major Concerto and the compositions from a farewell tourne episode. Then the second one is refering about his the America, where He's wrote Cello Concerto b minor,op.104.
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Betteridge, Benjamin Grant. "LCM Permeability Characterization Over Mold Curvature." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8508.
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Composite flow simulation tools for LCM processing can be expensive and time-consuming but necessary to design a mold system with proper placement of resin inlets and vacuum outlets. Composites manufacturing engineers would benefit from data regarding the impact of mold curvature radius on resin flow. This could help determine whether or not a particular part and mold would require expensive simulation software designed to handle complex flow paths through curved fabric architectures exhibiting variable permeability over the curvature, or if simple flow modeling would provide accurate enough simulations for sound tooling setup decision making. Four molds, with double curvature having equal radii, were fabricated with radii ranging from 3.2 to 25.4 mm to characterize the permeability of two different fiber reinforcements 1) a carbon biaxial NCF and 2) a fiberglass CSM over the mold curvatures. Three infusions of each material type were conducted on each of the 4 molds for a total of 24 test infusions. Flow front position vs. time data was captured during each experimental infusion. The permeability in the bend regions, KB, was first estimated by the integrated form of Darcy's Law to evaluate the permeability for average flow across the entire bend region. This was done for both the convex and concave regions using a geometric estimate for the increased compaction in the bend regions. The permeability increases as the tool radius increases, and the rate of increase diminishes as the tool radius increases and the permeability approaches the flat region permeability. An estimate of KB for VI was then made by applying a ratio calculated from the resulting permeability from the rigid- and VI-based models in the flat regions. Generic power law fits are reported that could be used in LCM process simulation, to give a model to estimate the permeability for any bend in the reinforcement part geometry. The results suggest that any curve with a radius higher than 25 mm requires no adjustment to the flat permeability.
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Kalavagunta, Ravi P. "Prevention of Mold in Building Construction." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155140670.
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Danijel, Nikolic. "Brahms F-moll sonat op. 120." Thesis, Kungl. Musikhögskolan, Institutionen för klassisk musik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kmh:diva-2474.
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Jag har valt att skriva om Brahms f-moll-sonat eftersom det är den sortens musik som berör mig mest inombords. Jag fastnade för musik för soloviola redan som liten. Detta verk är ett av de främsta och mest spelade verken för viola vilket gör att det blir en viktig del i violarepertoaren. Brahms levde mellan 1833 och 1897, förhållandena var annorlunda då jämfört med nu vilket medför att stycket lät annorlunda då mot vad det gör nu på moderna instrument och strängar. Jag har försökt efterforska hur nära man kan komma originaluppförandet och dåtidens klangideal och teknik. Detta verk skrevs först för klarinett men strax därefter gjorde Brahms en alternativ violaversion och jag har tittat på några skillnader mellan versionerna. Jag har också jämfört olika moderna utgåvor och provat att spela på sensträngar för att få en känsla av hur det egentligen kan ha känts och låtit med mer tidstroget material än moderna strängar.
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Pyykkö, Joakim. "Utvärdering av prognosmodeller för låga moln." Thesis, Uppsala universitet, Luft-, vatten och landskapslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325133.
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Låga moln definieras av att ha molnbasen från 0 till 2 km ovanför markytan. Molnbildande bygger på att den relativa fuktigheten stiger med höjden tills vattenångan i luften kondenseras. Prognosmodeller för moln bygger på grundläggande termodynamiska och fluiddynamiska ekvationer. Områden delas in i ett rutnät och ekvationerna löses med numeriska metoder. För jämförelse kan mätinstrument samt observationer användas, såsom ceilometrar, radar eller observatörer. Resultat från fyra olika experiment med prognosmodeller för moln används i detta arbete, som är en litteraturstudie för att undersöka modellers förmåga att simulera låga moln. Olika platser, på global och lokal skala, undersöks. Makroskopiska parametrar såsom molnandel och molnfrekvens är i fokus. WRF-modellen fungerar bäst med 12 km horisontell upplösning, med en viss överskattning av molnfrekvensen. Modellen CAM5 simulerar molnandel väl men vatteninnehåll och isinnehåll underskattas respektive överskattas. Säsongscykler av låga moln fångas väl av modellerna ECMWF, ARPEGE, RACMO och Met Office, med viss överskattning från samtliga modeller. GFS-modellen överskattar molnandelen långt från ekvatorn med upp mot 80% men underskattar nära ekvatorn med 10–20%. Överskattningar och underskattningar kan bero på faktorer såsom otillräcklig representation av mikrofysik eller möjligtvis felaktiga mätdata. Det denna studie visar är däremot att prognosmodeller på lokal skala kan ge bra simuleringar av makroskopiska parametrar av låga moln.Cloud types are defined by the height of their bases. Low-level clouds have cloud base heights between 0 and 2 km. They are formed when the relative humidity in the air reaches 100 %, leading to the formation of cloud droplets. Forecast models simulate clouds by integrating thermodynamic and fluid dynamic equations using numerical methods. Instruments and observations, such as ceilometers or observers, are used to assess the accuracy of these simulations. This study uses four previous works, where forecast models have been used to forecast clouds, to study the accuracy of low-level cloud forecasts. This is done on both local and global scales, focusing on macroscopic characteristics such as cloud fractions and frequencies. The results show that the WRF model works best with a horizontal resolution of 12 km, with slight overestimation of cloud frequencies. The climate model CAM5 simulates cloud fractions well, but liquid- and ice content deviate significantly from measurements. Seasonal cycles are generated well by ECMWF, ARPEGE, RACMO and Met Office Unified Model, with reoccurring overestimations by all models. The GFS model overestimates cloud fractions in higher latitudes by up to 80%, but underestimates near the equator by 10-20%. Lacking representation of microphysics in the models, or faulty data, can be the causes for deviations in the models. However, this study has shown that forecast models can simulate macroscopic parameters of low-level clouds on a local scale well.
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Kubach, Uwe. "Redesign, Reimplementation der Kommunikationsmechanismen in Mole." [S.l.] : Universität Stuttgart , Fakultät Informatik, 1997. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB6783508.
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Haug, Andreas. "Integration eines Kalendersystems in MOLE Office." [S.l.] : Universität Stuttgart , Fakultät Informatik, 1999. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB8287422.
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Herold, Nicole Leigh. "Naked mole-rat activity and temperature /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9904825.
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Jennings-Rentenaar, Teena. "Kuna mola blouses an example of the perpetuation of an art/craft form in a small scale society /." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1123183400.
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Thesis (Ph. D.)--Ohio State University, 2005.Title from first page of PDF file. Document formatted into pages; contains xv, 275 p.; also includes graphics. Includes bibliographical references (p. 263-275). Available online via OhioLINK's ETD Center
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Fox, Charles Daniel. "A BASIC UNDERSTANDING OF RAPID MOLD SURFACE HEATING VIA LASER ENERGY." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1341332102.
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Sousa, Lara Loureiro de. "Behaviour, predator-prey and fisheries interactions of the Ocean sunfish (Mola mola) in the north-east Atlantic." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/397413/.
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Over recent years, the availability of satellite telemetry has offered unparalleled opportunities to better understand the behavioural ecology of marine predators. One such predator for which little is known despite the high levels of bycatch in various fishing activities, is the ocean sunfish Mola mola. The work presented here tracked sunfish with three different types of satellite transmitter, revealing unknown spatial dynamics and selected habitats for this species in the north-east Atlantic. Tracked fish displayed seasonal movements that were primarily driven by water temperature, while exhibiting pronounced site fidelity to productive frontal regions. Moreover, there was an apparent size-related variation in dispersal, with larger fish moving farther and positively rheotacting in relation to major oceanographic currents. Furthermore, diving behaviour varied both within and between tracked fish, and both reverse and normal DVM were detected. However, as these different diving patterns did not correlate with geographic region or water column stratification, the observed variability is likely driven by prey distribution oscillations. To investigate this further, DNA barcoding of sunfish stomach contents revealed that while the diet of larger fish included cnidarian species, smaller individuals had a more generalist diet. Thus, although no adult sunfish were sampled, these data support the previously reported ontogenetic shift in diet. Additionally, sunfish foraging success was estimated in relation to simulated planktonic prey-fields (e.g. teleost and invertebrate larvae, gelatinous zooplankton). Tracked sunfish performed better than random null tracks in simulated prey-poor areas, whereas they performed equally in more productive regions. Fine-scale GPS tracking of sunfish behaviour also revealed that area restricted search, a proxy for foraging activity, was associated with areas of likely higher productivity. Lastly, coupling the sunfish behavioural and movement patterns, we explored for the first time the extent of sunfish and pelagic longliners co-occurrence. This revealed that 56% of the observed sunfish habitat was concomitantly used by longliners, representing an average of 2 days-at-risk per month – data that can be further used to inform potential management options. Overall, it is presented here the results of an exceptional opportunity to characterise the behavioural ecology, including interactions with prey and fisheries, of the world’s heaviest teleost, the vulnerable sunfish.
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Choi, Baek Yong. "Using fungicides or combinations of fungicides to provide mold and decay fungal protection to OSB." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/916.
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The use of wood-based composites has increased dramatically over the last two decades due to a number of factors. One reason is that Oriented Strand Board (OSB) is being increasingly utilized in residential applications in place of plywood. However, the use of OSB in residential construction is often limited because of its susceptibility to attack by biological pathogens such as mold and decay fungi. The environmental conditions that exist in certain use categories can be so adverse that the performance of these composites is negatively affected.
This study was divided into two parts. The first phase examined the effectiveness of fungicides or combinations of fungicides (including some metal-containing preservatives) for enhancing the mold resistance of strandboard. During the second part of the study, preliminaryexperiments investigated the effectiveness of fungicides or combinations of fungicides using anagar-block test to estimate the preservative toxic threshold retention. The compatibility of the fungicide on the resin curing was studied by measuring change in the resin gelation and viscosity. After these screening experiments were completed, large size boards were prepared and mechanical and decay resistance properties were examined.
It was found that mold and decay resistance properties of strandboard directly were related with the biocide type and its concentration. Greater protection of the strandboard was achieved with an increase in preservative retention levels. However, due to the relatively high cost of non-metallic (organic) preservatives, it is important to find the minimum amount of preservative that can protect the OSB against mold and decay fungi. One method of reducing the cost and increasing efficacy is to combine different fungicides to determine whether synergism exists. Even if synergism does not occur, it may reduce the overall cost by combining a less expensive biocide with a smaller amount of a more expensive biocide wheretheir biocidal efficacy complements each other.
In addition, it is important to understand that high retention of preservative may also cause negative effects on the mechanical properties of strandboard. This maybe noticeable of the high retention level of the biocide when a greater negative effect on the internal bonding (IB) strength may be recorded. Lower IB strength for treated strandboard may be attributed to the formulation of chemical residue in the wood surface, which may interfere with the reaction between wood and phenol formaldehyde (PF) resin. Surface-active agents in the preservative may also cause the PF resin to over-penetrate into wood decreasing bond strength. Increasing moisture content of strands by the introduction of an emulsified aqueous biocide solution, may cause dilution of the resin, and reduced bonding. It should also be noted that high retention of preservative which cause a change in the viscosity and gelation time of PF resins would be problematic for the operation of an OSB plant. For viscosity change, it could significantly affect the flow properties of the resin on the wood furnish and its atomization as it is spraying onto the wood furnish. In addition, it may require further modification to the equipment that supplies the resin to the spray nozzle. For changes in the gelation time, this may require changes to the press time at the OSB plant.
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Gee, Kathryn. "The role of ammonia in Dictyostelium development." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333438.
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BERTHET, BADETTI LAURENCE. "Mole extra-uterine : a propos d'un cas et revue de la litterature." Aix-Marseille 2, 1990. http://www.theses.fr/1990AIX20110.
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Aliouane, Soumeya. "Etude des protéines, MOMP, Omp50 et Cj1169c de Campylobacter." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4321.
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Campylobacter est responsable de la majorité des gastro-entérites bactériennes dans le monde. Sa membrane externe contient des porines qui permettent les échanges entre la bactérie et le milieu extérieur. Elles sont une des voies principales d’entrée pour les antibiotiques et les nutriments. Le premier objectif de mon travail était de participer à la caractérisation des porines MOMP et Omp50. Nous avons purifié ces protéines dans le cadre de collaborations pour l’étude des propriétés biophysiques de ces porines (M. Wintherhalter, Université Jacob, Allemagne) et la détermination de leur structure par cristallisation (J. Naismith, Université St Andrews, Écosse). La deuxième partie de ma thèse a été consacrée à l’étude et la caractérisation du produit du gène Cj1169c qui est en opéron avec le gène codant Omp50. Nous avons cloné et exprimé le gène Cj1169c chez Escherichia coli, ce qui a permis de purifier la protéine et de produire des anticorps spécifiques. Ces anticorps ont été utilisés pour étudier la prévalence de Cj1169c chez les espèces les plus fréquentes. Nous avons montré qu’elle était présente uniquement chez C. jejuni et C. lari et absente chez C. coli. En deuxième lieu, nous avons caractérisé sa production en fonction de conditions de culture et montré qu’elle dépendait du pH et de la température. Nous avons ensuite démontré que cette protéine est située dans le périplasme de Campylobacter. Puis, en raison de la présence de deux résidus de cystéines dans sa séquence, nous avons étudié son comportement en présence et en absence d’agents réducteurs de ponts disulfures. De plus, des résultats préliminaires suggèrent que cette protéine interagit avec Omp50Campylobacter is a leading cause of bacterial gastroenteritis worldwide. Its outer membrane contains porins which are pore forming protein that transport hydrophilic compounds like nutrients and antibiotics into the bacteria. My first objective was to purify the two porins MOMP and Omp50 from C. jejuni, in order to allow the study of the biophysical properties of porins (Collaboration with Mr. Wintherhalter, Jacob University, Germany), and to determine the structure of these porins by crystallization (Collaboration with J. Naismith, St Andrews University, Scotland).The second part of my thesis was devoted to the study of the product of the gene Cj1169c which is operonic with the Omp50 coding gene. We cloned and expressed the gene Cj1169c in Escherichia coli, purified the protein and produced Cj1169c-specific antibodies. We studied the prevalence of this protein in the most frequent species of Campylobacter and found the protein only in C. jejuni and C. lari never in C. coli. Then, we also studied the Cj1169c production in the function of several growing conditions, and we found that it depended on the pH and temperature. Besides, we demonstrated by several methods that this protein is located in the periplasmic compartment of the bacteria. Furthermore, because it contains two cysteins residues in its primary sequence, we studied the Cj1169c behavior in the presence and absence of disulfide bond reducing agents. In addition, preliminary results suggest that this protein interacts with Omp50
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Dickey, Emily Rebecca. "Evaluation of a calcium pre-molt and low-energy molt program effects on laying hen behavior, production, and physiology before, during, and after a fasting or non-fasting molt /." [Ames, Iowa : Iowa State University], 2008.
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Jiang, Chii Jong, and 江啟忠. "Interactive Displaced Ideal Procedure in MOLP." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/40813936358738103033.
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碩士國立清華大學
工業工程研究所
82
The decision processes have been discussed extensively in the literature. The dynamic decision process is a kind of process- oriented approach which exhibites the realistic human decision behavior in the descriptive form. The feature of dynamic decision process is that during the period of decision making process, the decision maker incessantly searches for the available information to discover the uncertain and unkown parts of a decision problem in order to minimize his/her regret. In this study, we design a decision-aid procedure to exhibit the feature of dynamic decision process so that it can fully support a decision maker to make a proper decision. This decision-aid procedure is called Interactive Displaced Ideal Procedure ( IDIP ) which is developed in a criteria space. By adopting an interactive mode, IDIP matches the displaced ideal concepts to let the DM incessantly learn the decision problems and make proper revisions in a rational and simple manner.
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Ou, Yang Hong, and 歐陽洪. "TOLERANCE ANALYSIS OF A NONDOMINATED SET IN MOLP." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/12753718059490602811.
Full textAbstract:
碩士國立清華大學
工業工程研究所
82
Tolerance analysis in multiple objective linear programmes has been drawn much attention in recent years. All of these papers were assumed that a decision maker can provide his/her preference structure as a weight of importance explicitly, so the sensitivity analysis was done on one nondominated extreme point only. That is, the most preferred solution by the DM. However, DM may not realize his/her preference structure. Moreover, the final decision is not necessarily a nondominated extreme point. Instead, it can be any nondominated point. Therefore, it is necessary to analyze the entire nondominated set in order to provide more complete information for decision makings. To achieve our aim of study, three cases are considered in the tolerance analysis of a nondominated set: (1) when the cost coefficients are perturbed, (2) when the RHS is perturbed, (3) when both the cost coefficients and the RHS are perturbed simultaneously. P.L.Yu and M.Zeleny have presented a theory which shows that a nondominated set can be divided into a group of nondominated faces. Based on the theory, we propose a method to obtain the tolerance region of a nondominated set from the tolerance regions of nondominated extreme points systematically.
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Chen, Po-Ting, and 陳柏廷. "Soling MOLP and Intrinsic Condition Analysis by Interior Point Algorithm." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/26796083096760016818.
Full textAbstract:
碩士銘傳大學
管理科學研究所
89
Abstract This research presents a modified interior point algorithm to solve a multi-objective linear problem（MOLP）. The proposed algorithm overcome the local optional solution by the existing interior point algorithms. In addition, this research demonstrates the weights determining to solve MOLP by utility function trade-off method that is more objective than other classic weights determining methods. Other focus is to do experiment to explore the intrinsic conditions of six-selected possible effective factors while using interior point algorithm to solve MOLP. The eight results and their analysis are based on of them by using Simplex Method.
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Sampaio, Joana Helena Peixoto. "Deteção de fibras de amianto em materiais sólidos da construção civil por microscopia ótica de luz polarizada (MOLP)." Master's thesis, 2016. http://hdl.handle.net/1822/45586.
Full textAbstract:
Dissertação de mestrado em Técnicas de Caracterização e Análise QuímicaO amianto foi utilizado em abundância no século XVIII em inúmeras aplicações nomeadamente na construção civil devido às suas propriedades químicas e mecânicas, tais como elasticidade, elevada resistência a altas temperaturas, incombustibilidade e bom isolamento térmico e acústico. No entanto, a presença de amianto em materiais tem sido uma ameaça à saúde pública a nível mundial e a exposição do Homem a este tipo de fibra tem levado a um número crescente de diagnósticos de doenças. Considerado altamente cancerígeno pela International Agency for Research on Cancer (IARC), o amianto foi proibido em Portugal a partir do dia 1 de Janeiro de 2005. Neste trabalho foram analisados diferentes tipos de materiais da construção civil, com o objetivo de detetar e identificar diferentes tipos de fibras de amianto através de microscopia ótica de luz polarizada (MOLP). A análise preliminar das amostras seguida da deteção e identificação do tipo de fibras permitiu concluir se as amostras continham ou não fibras de amianto. Existem 6 tipos de fibras de amianto: crisótilo, crocidolite, amosite, tremolite, antofilite e actinolite que são identificadas após uma análise de diferentes propriedades: morfologia; sinal de alongamento; ângulo de extinção; pleocroísmo; birrefringência e cores McCrone. Com base nos resultados, verificou-se que das 900 camadas analisadas, 10% continha amianto, sendo que 9% foi detetado por microscopia eletrónica de transmissão (MET) e 1% foi detetado por MOLP. Analisando por outra perspetiva, dessas 900 camadas analisadas apenas em 8% foram obtidos resultados conclusivos por MOLP, em que 17% destes contêm amianto, nas restantes 83% não foram detetadas fibras de amianto. Dos 17% de camadas com amianto, o fibrocimento foi o material que apresentou maior percentagem de amianto, sendo o material presente em telhas utilizadas em edifícios públicos em Portugal. Com este estudo foi possível evidenciar que ainda existem muitas fibras de amianto presentes, nos dias de hoje, no material da construção, o que continua a ser uma ameaça à saúde humana.
Asbestos was used in abundance in the 18th century in numerous applications especially in construction, due to its chemical and mechanical properties, such as elasticity, high resistance to high temperatures, incombustibility and good thermal and acoustic insulation. However, the presence of asbestos in materials has been a threat to public health worldwide and human exposure to this type of fiber has led to an increasing number of diagnoses of diseases. Considered highly carcinogenic by the International Agency for Research on Cancer (IARC), asbestos was banned in Portugal from 1 January 2005. In this work, different types of construction materials were analyzed with the intention of detecting and identifying different types of asbestos fibers by means of polarized light microscopy (PLM). Preliminary analysis of the samples, followed by the detection and identification of the fibers type, made possible to conclude if the sample contained asbestos fibers or not. There are 6 types of asbestos fibers: chrysotile, crocidolite, amosite, tremolite, actinolite and anthophyllite which are identified after an analysis of several properties: morphology; sign of elongation; angle of extinction; pleochroism; birefringence and McCrone colors. Based on the results, 10% of the 900 analyzed layers contained asbestos, 9% of which were detected by transmission electron microscopy (TEM), and 1% by PLM. From another perspective, conclusive results were obtained by PLM only in 8% of the 900 analyzed layers, 17% of which contained asbestos, while in the remaining 83% asbestos fibers were not detected. From those 17% of layers with asbestos, fiber-cement, the material used for tiles in public buildings in Portugal, was the material with the highest percentage of asbestos. With this study, it was possible to demonstrate that there are still many asbestos fibers present in today’s construction material, which remains a threat to human health.
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SONU and RENU MEGHWAL. "THE LPP MODEL PARAMETERS MEANT FOR WHEAT PRODUCTION DECISION MAKING." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/20098.
Full textAbstract:
This report presents a multi-objective linear programming model. The LPP model
is based on the data of Wheat Production in India from 2001-22 . We use concept
of LPP Simplex Method using TORA software to solve our LPP Model. We consid ered wheat price, ethanol price, wages, import and export price to be constant and
same all over India throughout the year. The study finds important variables, such
as weather patterns, different zones for wheat cropping, export and import prices in
different regions that affect decision-making. Change in these variables can change
the solution of LPP Model. This multi-objective model can be used as a tool for com paring the profit or production of wheat in India. With the help of post-optimality
analysis on this model, we can analyse the parameters like land availability, wages,
the effects of climatic variability, soil characteristics, input costs on wheat yields and
profitability using a mix of field data, modelling strategies, and statistical analysis
can bring change in overall wheat production in that year.
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Chen, Yi-Jhih, and 陳益智. "Integration of Mold Modification Knowledge and Mold Assembly Design." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/5rh3vs.
Full textAbstract:
碩士中原大學
機械工程研究所
102
The most important thing is to mold design time and cost, mold design time includes the entire production cycle, among the design part of the changes, the longest time-consuming, now companies want to remain competitive, so focused on reducing design time and standardization of design changes processes, and therefore becomes oriented assembly and set mold design, will become the focus of a study. In this study, the integration of CAD software and network technology development issued by the assembly and mold design becomes oriented design, use of previously developed in this laboratory of intelligent mold design and mold base benevolence design process, design changes for the construction of the mold and the mold assembly set change processes, references in this top-down design process techniques, and assembly design category, and in the design stage, provides the assembly affect the relative relationship between part design to avoid after the change, referring to errors caused due to loss, then enter the major design change process, namely the establishment early in the mold design module of the whole skeleton file, using the template size information to establish the assembly location, by creating a set of features quickly into or replacement parts. And through this study process can save about 49% of the time design changes and design changes to improve efficiency.
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Sun, Hui-Kung, and 孫暉功. "Calculation and Analysis of Mold Price for Stamping Mold." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/89817430367606094281.
Full textAbstract:
碩士中原大學
機械工程研究所
102
Stamping die is associated with the tooling cost and quality. The tooling engineering, design, material selection and process methods are crucial to the quality and reliability of the finish goods as well as the tooling. Therefore, better liability is related to higher tooling and product cost. However, the interests of tooling purchasers and providers often clash with each other in reality during the process of negotiation between the tooling providers and the purchasers; besides the design concepts and engineering requirements, the tooling cost has always been the point of conflicts for the two parties. The in transparency of tooling cost often results in potential risks of money loss if detailed production cost analysis is not conducted. Whilst the purchasers may not realize tooling providers’ cost structure and consistently troubled by the production cost or demands acquisition of higher tooling and prolonged tooling lifespan without relevant compensations. These factors consequently lead to tooling providers’ migrations, yet the purchaser could not receive the required tooling quality and face raising production cost. The purpose of this research is to standardize tooling design and the manufacturing process, in terms of providing a universal standard accepted by both tooling manufacturers and purchasers. Base on this model, tooling manufacturers can predict precise tooling cost in a speedy manner while using standardized design and molding process to avoid irrational price demands from the purchasers. On the other hand, purchasers could have better understanding of tooling quality through standardized tooling design and process, for reserving manufacturers’ sufficient profits and reduce wastes caused by over-designing. The result of the research shown how to use finish goods’ quality and production volume as the references for tooling design and material selection; then translate the basic structure of tooling into molding manufacturing process, hence calculate the production cost. The research result will be served as the benchmark between the manufacturers and purchasers and enhance mutual communication and trust, which is beneficial for both parties in the long term.
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Yoland and 張琦緯. "Mold-Flow Analysis Aided Manufacture of Frontal Bumper Mold." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/13980140054599870375.
Full textAbstract:
碩士南台科技大學
機械工程系
94
The research utilizes the techniques of mold-flow analysis to analyze the design and manufacture of frontal bumper mold. Bumper mold is a huge one and therefore needs a huge injection machine for molding trial. This needs large fees for the trial. We therefore introduce the technique of computer-aided engineering analysis for the molding process in order to predict the possible areas of defect and therefore improve the design on the computer screen rather than with the process of molding test. This paper utilizes the Moldflow Plastics Insight software to analyze mold flow of frontal bumper and study the effect of number of pouring mouth on product formation, including that of finishing time, flowing mark situation and temperature profile. Size, flowing mark and level of temperature will influence the product density, appearance, toughness of the products and stabilization degree. With the assistance of the computer-aided engineering analysis, an economical molding process is proposed with six cooling pipes, one pouring mouth along with high molding temperature and melting temperature.
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Yeh, Hao-Ming, and 葉濠銘. "Design of The Hot Runner Mold Quick Mold Change." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/04653430444351815817.
Full textAbstract:
碩士國立高雄應用科技大學
模具系碩士在職專班
101
The development of 3C industry getting more and more fast, fast production became necessary in the market these days. The requirement of product is change to small amount and diverse. Plastic products are trend to changeful, and different to traditional design, the needs of plastic products are become severer. The products of plastic is become slim, light and diversification in the future, and hot runner molding will be used as an important tool for solve the problems of frequently mold changing and maintenance. There has many important objects like speed up the process, cost down of molding, improve produce efficiency in this industry. We intend to develop a quick die change system which can share the hot runner structure as a research subject. The purpose of this research is a innovation design of quick die changing with hot runner. In this research we define a 10 inches tablet which length and width is 265.8mm×170mm, and the average thickness of 3.5mm rectangular frame. In this scope, we combined the TRIZ and systematic engineering design to build a quick die change system which can share the hot runner structure. We can decrease the lead time and cost of molding process, and speed up the mold replacement, furthermore can increase profits and improve market competitiveness.
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Wu, Po-Shien, and 吳柏賢. "The Mold Flow Analysis and Case Study of Plastic Mold." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/25k77j.
Full textAbstract:
碩士崑山科技大學
機械工程研究所
96
As the economy grows up and national income increases in Taiwan, people need requirement in substance more and more. According the mould is used in multipurpose way and demand is growth, we figure out that the business is increasing. It is valuable to study the mould industry environment and observe its development. The mould industry of Taiwan is now facing a competitor from China. It is more and more difficult to extend the market. The most effective way is to adjust marketing plan and creative new product to oppose China or other nations. The mould industry of Taiwan has to improve its professional skills, enhance the channel marketing and educate R&D and aware itself strength and weakness. The industry has to be more diversification in business marketing and develop R&D department and creative more valuable in product. It is the more worthy way to help the mould industry in Taiwan. The main purpose of this study was to make and design the mould process and discuss the advantage of the mould industry. In terms of theoretical foundational analyzed to figure out the capability, composition and permanence of the mould industry in Taiwan and collected those analyze data to be the studying resource. This research was selected an industry which is called “SportsArt Fitness”to be our model to help us analyzing the business tactic. The major conclusions were： First, the mould industry of Taiwan is well-known in product quality and creativity ability. It is the high additional value to expand the market to the world and also to gather and manage the supply chain to increase the product quality and raise competitiveness. Taiwan has the most strength skills in making mould industry. Secondly, the global regional economy grows fast and each mould industry of Taiwan has to figure out the most suitable tactics and develop the most valuable market business for itself and oppose the variable global mould market. This study emphasizes on the mould industry developing for Taiwan and contributes to the establishment of mould development in Taiwan.