993 resultados para Operations performance
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Mode of access: Internet.
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Pós-graduação em Engenharia de Produção - FEG
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Tässä tutkimuksessa selvitettiin, miten suorituskyvyn johtamista ja mittaamista käytännössä toteutettiin suuressa tutkimus- ja tuotekehitystoimintaa Suomessa harjoittavassa elintarvikealan yrityksessä. Tutkimuksessa kartoitettiin tärkeimpiä suorituskykyyn vaikuttavia tekijöitä suorituskyvyn johtamisen ja mittaamisen näkökulmasta. Tutkimuksen tavoitteena oli saada kooste suosituksista tutkimus- ja tuotekehitystoiminnan suorituskyvyn johtamisen ja mittaamisen kehittämiseksi. Tutkimuksen laajuus rajattiin neljään case-yritykseen. Tutkimuksessa tehtiin empiirinen puolistrukturoitu kyselytutkimus, strukturoidut haastattelut sekä tulosten arviointi. Tutkimusote oli lähinnä toiminta-analyyttinen, koska tutkimuksessa käsiteltiin organisaation toimintaa, johtamista, ongelmanratkaisua, päätöksentekoprosesseja sekä kehitys- ja muutosprosesseja. Tutkimustulosten perusteella suorituskyvyn johtamista ja mittaamista case-yrityksissä toteutettiin BSC:n yleisten näkökulmien mukaisesti. Tutkimus- ja tuotekehitystoiminnan mittauksen tavoitteet poikkesivat toisistaan niiden toiminnan luonteesta johtuen. Tutkimustoiminnassa suorituskyvyn mittauksen tavoitteet painottuivat lähinnä innovatiivisuuteen, oppimiseen ja motivointiin. Tuotekehitystoiminnassa mittauksen tavoitteet olivat enemmän diagnostisia. Tuotekehitystoiminnassa tavoitteena olivat projektien seurantaan, toiminnan tulostenarviointiin, talouteen sekä koordinaatioon ja kommunikointiin liittyvät tekijät. Tutkimustulosten perusteella puutteita havaittiin suorituskyvyn viestinnän riittävyydessä ja vaikuttavuudessa, mittaustiedon hyödynnettävyydessä, aineettoman pääoman mittauksessa, projektien arviointikriteerien viestinnässä, prosessien selkeydessä ja toimivuudessa, projektiosaamisessa, suorituskyvyn mittauksessa, vaikutusmahdollisuuksissa, johtamisessa ja esimiestyössä.
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Tutkimuksessa kehitettiin ajoneuvokatsastuksen suorituskykymittari sekä suorituskyvyn johtamiseen perustuva ajoneuvokatsastuksen valvontamalli. Suorituskykymittarin avulla voidaan mitata ajoneuvokatsastuksen suorituskykyä, seurata suorituskyvyn kehitystä, suunnitella ja päättää mitä pitäisi parantaa sekä seurata tehtyjen toimenpiteiden vaikutuksia eli johtaa toimintaa. Tutkimuksessa kehitetty suorituskykymittari perustuu Liikenteen turvallisuusviraston ylläpitämään ajoneuvoliikennerekisteriin tallennettujen katsastustietojen analysointiin sekä tilastollisten prosessin ohjausmenetelmien (SPC) hyödyntämiseen. Tutkimuksessa kehitetyssä ajoneuvokatsastuksen valvontamallissa Liikenteen turvallisuusviraston valvontatoimintoja sekä katsastusyritysten omaa laadunhallintaa johdetaan suorituskykymittarin avulla. Tutkimuksessa kehitetyn suorituskykymittarin ja valvontamallin avulla Liikenteen turvallisuusvirastolla ja katsastusyrityksillä on aiempaa paremmat edellytykset valvoa ja johtaa ajoneuvokatsastuksen suorituskykyä katsastustoiminnalle asetettujen tavoitteiden kannalta vaikuttavasti ja oikein. Tutkimus toteutettiin konstruktiivista tutkimusotetta käyttäen ja tutkimuksessa kehitetty ajoneuvokatsastuksen valvontamalli implementoitiin osaksi kansallista lainsäädäntöä sekä Liikenteen turvallisuusviraston ja katsastusyritysten johtamistoimintoja.
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A literatura Operações de Paz é farta de exemplos de análise de desempenho de uma operação. Essas análises observam o cumprimento do mandato, ou os efeitos no Estado hospedeiro. Mas poucos estudos, tratam das consequências dessa participação para os Estados que enviam tropas. Tentando ajudar a preencher essa lacuna, esta dissertação pretende entender se a participação e o protagonismo brasileiro na Missão das Nações Unidas para a Estabilização do Haiti - MINUSTAH ajudaram o Brasil a alcançar seus objetivos. Utilizando uma abordagem mista, foram analisados dados de contribuição de tropas, orçamentos, documentos oficiais e, por fim, foram realizadas 08 entrevistas com militares e especialistas civis. Com base no modelo de objetivos estatais aplicado, se estudou se a presença no Haiti permitiu ao Brasil sinalizar seus objetivos para a comunidade internacional, reformar suas instituições, as militares entre elas, e se havia necessidades orçamentárias para contribuir para a missão. As evidências analisadas levam a crer que o saldo da missão é misto. Embora alguns aspectos demonstrem definitivas melhorias, outros são irrelevantes ou sofrem com a manutenção da cultura militar antiquada.
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Os lagos de pesca recreativa, pesque-pague, surgiram no Brasil em um cenário agrícola denominado como novo rural brasileiro. Este estudo conduzido no noroeste paulista teve como foco o desempenho produtivo dos lagos de pesca recreativa. Foram feitas visitas mensais a nove empreendimentos de pesca recreativa durante seis meses. A cada visita foi aplicado um questionário contendo 13 indicadores de desempenho. Os dados levantados foram submetidos à análise multivariada (MANOVA), análise de componente principal (ACP) e análise de agrupamento. A MANOVA indicou diferenças significativas entre os lagos de pesca recreativa. A ACP revelou, a partir do coeficiente dos autovalores, três atributos: sistema produtivo, gerenciamento pesqueiro e administração operacional. A análise de agrupamento classificou os lagos de pesca recreativa em quatro grupos. Freqüência de pescadores (FP), densidade de estocagem (DE), biomassa de estocagem (BE), captura total (CT) e captura lago dia (CLD), os quais fazem parte do atributo sistema produtivo, mostrando-se os indicadores mais importantes para a avaliação de desempenho dos lagos de pesca recreativa neste estudo.
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Pós-graduação em Engenharia de Produção - FEG
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Winter weather in Iowa is often unpredictable and can have an adverse impact on traffic flow. The Iowa Department of Transportation (Iowa DOT) attempts to lessen the impact of winter weather events on traffic speeds with various proactive maintenance operations. In order to assess the performance of these maintenance operations, it would be beneficial to develop a model for expected speed reduction based on weather variables and normal maintenance schedules. Such a model would allow the Iowa DOT to identify situations in which speed reductions were much greater than or less than would be expected for a given set of storm conditions, and make modifications to improve efficiency and effectiveness. The objective of this work was to predict speed changes relative to baseline speed under normal conditions, based on nominal maintenance schedules and winter weather covariates (snow type, temperature, and wind speed), as measured by roadside weather stations. This allows for an assessment of the impact of winter weather covariates on traffic speed changes, and estimation of the effect of regular maintenance passes. The researchers chose events from Adair County, Iowa and fit a linear model incorporating the covariates mentioned previously. A Bayesian analysis was conducted to estimate the values of the parameters of this model. Specifically, the analysis produces a distribution for the parameter value that represents the impact of maintenance on traffic speeds. The effect of maintenance is not a constant, but rather a value that the researchers have some uncertainty about and this distribution represents what they know about the effects of maintenance. Similarly, examinations of the distributions for the effects of winter weather covariates are possible. Plots of observed and expected traffic speed changes allow a visual assessment of the model fit. Future work involves expanding this model to incorporate many events at multiple locations. This would allow for assessment of the impact of winter weather maintenance across various situations, and eventually identify locations and times in which maintenance could be improved.
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The goal of this research project was to develop a method to measure the performance of a winter maintenance program with respect to the task of providing safety and mobility to the travelling public. Developing these measures required a number of steps, each of which was accomplished. First, the impact of winter weather on safety (crash rates) and mobility (average vehicle speeds were measured by a combination of literature reviews and analysis of Iowa Department of Transportation traffic and Road Weather Information System data. Second, because not all winter storms are the same in their effects on safety and mobility, a method had to be developed to determine how much the various factors that describe a winter storm actually change safety and mobility. As part of this effort a storm severity index was developed, which ranks each winter storm on a scale between 0 (a very benign storm) and 1 (the worst imaginable storm). Additionally a number of methods of modeling the relationships between weather, winter maintenance actions and road surface conditions were developed and tested. The end result of this study was a performance measure based on average vehicle speed. For a given class of road, a maximum expected average speed reduction has been identified. For a given storm, this maximum expected average speed reduction is modified by the storm severity index to give a target average speed reduction. Thus, if for a given road the maximum expected average speed reduction is 20 mph, and the storm severity for a particular storm is 0.6, then the target average speed reduction for that road in that storm is 0.6 x 20 mph or 12 mph. If the average speed on that road during and after the storm is only 12 mph or less than the average speed on that road in good weather conditions, then the winter maintenance performance goal has been met.
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Emerging markets of Northern Africa and Turkey provide growth opportunities for logistics service companies in the middle of low growth environment of European Union. The purpose of this research is to explore and analyze the risk factors in container shipping industry and third party logistics (3PL) services. The research empirically examined the risk factors, which are related within the interaction between these two parties in emerging markets of Mediterranean area. The previous studies have provided a valuable insight into the operational risks faced by container shipping industries. However, most of these studies have focused on one or several operational risk factors from a single point of view, and no studies have inclusively examined the possible operational risks faced in the container shipping industry from dual perspective of 3PL provider and its customers. A questionnaire has been deployed to collect related data; and the impacts of the risks were then be assessed and ranked using the method of risk mapping. Respondents were located in Turkey, Algeria, Tunisia, and Libya. Research presents the most important risk factors identified, and compares them between 3PL provider and its customers. The research also provide some risk mitigation strategies for the key risk factors, and tried to figure out a common risk picture, which guides the managers in both sides to have a better decisions and as a result, improve the performance of the container shipping operations. Challenge during project execution time was that customers identified vast amount of more risks than what was the case with logistics service operator.
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Manufacturing strategy has been widely studied and it is increasingly gaining attention. It has a fundamental role that is to translate the business strategy to the operations by developing the capabilities that are needed by the company in order to accomplish the desired performance. More precisely, manufacturing strategy comprises the decisions that managers take during a certain period of time in order to achieve a desire result. These decisions are related to which operational practices and resources are implemented. Our goal was to identify the relationship between these two decisions with operational performance. We based our arguments on the resource-based view for identifying sources of competitive advantage. Hence, we argued that operational practices and resources affect positively the operational performances. Additionally, we proposed that in the presence of some resources the implementation of operational practices would lead to a greater performance. We used previous scales for measuring operational practices and performance, and developed new constructs for resources. The data used is part of the High Performance Manufacturing project and the sample is composed by 291 plants. Through confirmatory factor analysis and multiple regressions we found that operational practices to a certain extant are positively related to operational performance. More specifically, the results show that JIT and customer orientation practices have a positive relationship with quality, delivery, flexibility, and cost performances. Moreover, we found that resources like technology and people explain a great variance of operational performance.
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The objectives were to assess incidence of pregnancy losses, associate this outcome with immunization programs against reproductive diseases, and evaluate the effects of vaccination against bovine herpesvirus-1 (BoHV-1), bovine viral diarrhea virus (BVDV), and Leptospira spp., on reproductive efficiency of Brazilian cow-calf operations. In experiment 1, 7614 lactating Nelore cows from 18 ranches were assigned to the same estrus synchronization and fixed-time AI protocol (ESFTAI; Days -11 to 0). Pregnancy status was determined with transrectal ultrasonography on Days 30 and 120 after AI. Pregnancy loss was deemed to have occurred when cows were pregnant on Day 30 but nonpregnant on Day 120. Incidence of pregnancy loss across all ranches was 4.1%; pregnancy losses were detected (P < 0.10) in 14 ranches but not detected (P > 0.11) in four ranches. Pregnancy loss was lower (P ≤ 0.02) in ranches that vaccinated against BoHV-1, BVDV, and Leptospira spp. compared with ranches that did not vaccinate, or only vaccinated against Leptospira spp. In experiments 2 and 3, lactating Nelore cows (N = 1950 and 2793, respectively) from ranches that did not have a history of vaccinating against reproductive diseases (experiment 2), or only vaccinated against Leptospira spp. (experiment 3), were assigned to the same ESFTAI used in experiment 1. Within each ranch, cows received (VAC) or not (CON) vaccination against BoHV-1, BVDV, and Leptospira spp. at the beginning of the ESFTAI (Day -11) and 30 days after (Day 41) AI. In experiment 2, VAC cows had greater (P ≤ 0.05) pregnancy rates compared with CON on Days 30 and 120. In experiments 2 and 3, pregnancy loss was reduced (P ≤ 0.03) in primiparous VAC cows compared with CON cohorts. In experiment 4, 367 primiparous, lactating Nelore cows previously vaccinated against Leptospira spp. were assigned to the same ESFTAI used in experiment 1. Cows received VAC, or the same vaccine 30 days before (Day -41) and at the beginning (Day -11) of the ESFTAI (PREVAC). Pregnancy rates on Days 30 and 120 were greater (P ≤ 0.05) in PREVAC cows compared with VAC cows. In conclusion, pregnancy losses affected reproductive and overall efficiency of Brazilian cow-calf operations, and might be directly associated with BoHV-1, BVDV, and Leptospira spp. infections. Hence, vaccinating cows against these pathogens, particularly when both doses are administered before fixed-time AI, improved reproductive performance in Brazilian cow-calf systems. © 2013 Elsevier Inc.