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Pereira, Alexandre Miguel Martins. "Relatório de estágio na Ameise Editora LDA". Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15784.
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Mestrado em Estudos EditoriaisO presente relatório propõe-se a expor todo o meu trabalho desenvolvido durante o período do estágio curricular na Ameise Editora desde agosto de 2014 até fevereiro de 2015. No mesmo encontra-se uma breve história da editora, um enquadramento do trabalho que desenvolvi e como este se relacionou com as unidades curriculares.
This report intends to expose all my work during the traineeship period in Ameise Editora from August 2014 until February 2015. In this same report you will able to read the brief history of Ameise Editora, the framework of the work I have done and how this was related to the master’s subjects.
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Shamsolahi, S. "LDA investigation of flow in a stable mixed-flow pump model". Thesis, University of Strathclyde, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382495.
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Harrysson, Mattias. "Neural probabilistic topic modeling of short and messy text". Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189532.
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Exploring massive amount of user generated data with topics posits a new way to find useful information. The topics are assumed to be “hidden” and must be “uncovered” by statistical methods such as topic modeling. However, the user generated data is typically short and messy e.g. informal chat conversations, heavy use of slang words and “noise” which could be URL’s or other forms of pseudo-text. This type of data is difficult to process for most natural language processing methods, including topic modeling. This thesis attempts to find the approach that objectively give the better topics from short and messy text in a comparative study. The compared approaches are latent Dirichlet allocation (LDA), Re-organized LDA (RO-LDA), Gaussian Mixture Model (GMM) with distributed representation of words, and a new approach based on previous work named Neural Probabilistic Topic Modeling (NPTM). It could only be concluded that NPTM have a tendency to achieve better topics on short and messy text than LDA and RO-LDA. GMM on the other hand could not produce any meaningful results at all. The results are less conclusive since NPTM suffers from long running times which prevented enough samples to be obtained for a statistical test.Att utforska enorma mängder användargenererad data med ämnen postulerar ett nytt sätt att hitta användbar information. Ämnena antas vara “gömda” och måste “avtäckas” med statistiska metoder såsom ämnesmodellering. Dock är användargenererad data generellt sätt kort och stökig t.ex. informella chattkonversationer, mycket slangord och “brus” som kan vara URL:er eller andra former av pseudo-text. Denna typ av data är svår att bearbeta för de flesta algoritmer i naturligt språk, inklusive ämnesmodellering. Det här arbetet har försökt hitta den metod som objektivt ger dem bättre ämnena ur kort och stökig text i en jämförande studie. De metoder som jämfördes var latent Dirichlet allocation (LDA), Re-organized LDA (RO-LDA), Gaussian Mixture Model (GMM) with distributed representation of words samt en egen metod med namnet Neural Probabilistic Topic Modeling (NPTM) baserat på tidigare arbeten. Den slutsats som kan dras är att NPTM har en tendens att ge bättre ämnen på kort och stökig text jämfört med LDA och RO-LDA. GMM lyckades inte ge några meningsfulla resultat alls. Resultaten är mindre bevisande eftersom NPTM har problem med långa körtider vilket innebär att tillräckligt många stickprov inte kunde erhållas för ett statistiskt test.
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Schreiber, Jonah. "Tracking Online Trend Locations using a Geo-Aware Topic Model". Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190887.
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In automatically categorizing massive corpora of text, various topic models have been applied with good success. Much work has been done on applying machine learning and NLP methods on Internet media, such as Twitter, to survey online discussion. However, less focus has been placed on studying how geographical locations discussed in online fora evolve over time, and even less on associating such location trends with topics. Can online discussions be geographically tracked over time? This thesis attempts to answer this question by evaluating a geo-aware Streaming Latent Dirichlet Allocation (SLDA) implementation which can recognize location terms in text. We show how the model can predict time-dependent locations of the 2016 American primaries by automatic discovery of election topics in various Twitter corpora, and deduce locations over time.
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Carreira, Filipa Contreiras Duarte. "Análise e otimização da gestão de stocks: caso de estudo de uma estação de serviço da Repsol Portuguesa Lda". Master's thesis, Instituto Superior de Economia e Gestão, 2021. http://hdl.handle.net/10400.5/23348.
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Mestrado Bolonha em Gestão e Estratégia IndustrialNum mercado competitivo como o atual, as empresas são forçadas a estabelecer métodos mais eficazes para gerirem os seus stocks uma vez que a gestão dos mesmos é um dos processos mais importantes para o sucesso das organizações. Uma das mais valias deste processo é a diminuição do nível de stock que por sua vez tem um impacto positivo no desempenho organizacional e na redução dos custos totais das empresas. O objetivo deste estudo é analisar e otimizar a gestão de stocks de uma Estação de Serviço da Repsol Portuguesa de forma a minimizar os seus custos anuais de stock. A Repsol é uma empresa multienergética internacional nascida em Espanha e com presença notória em Portugal desde 1990. Este relatório de dissertação pretende ser uma contribuição prática para encontrar o equilíbrio entre a compra e a procura dos produtos vendidos numa Estação de Serviço da Repsol Portuguesa e permitir, deste modo, uma melhor tomada de decisão. Neste estudo serão analisados os modelos de controlo e classificação de stocks e posteriormente aplicado o modelo da Quantidade Económica de Encomenda (QEE). O modelo da QEE define qual a quantidade ótima de encomenda, de forma a minimizar os custos associados ao stock. No final do estudo, é alcançada uma otimização da gestão de stocks, ou seja, existe a possibilidade de redução do custo total do stock em 39,69% com base nos modelos académicos aplicados.
In a competitive market as the current one, companies are forced to establish more efficient methods to manage their stocks, since stock management is one of the most important processes for the success of organizations. One of the advantages of this process is the reduction in the stock level which in turn has a positive impact on organizational performance and on the reduction of the companies’ total cost. The purpose of this study is to analyze and optimize the stock management of a Repsol Portuguesa Gas Station to minimize its annual stock costs. Repsol is an international multi-energy company born in Spain with a notable presence in Portugal since 1990. This dissertation report aims to be a practical contribution by finding the balance between the purchase and the demand for the products sold at one Repsol Portuguesa Gas Station thus allowing better decision making. In this study the stock control and classification models will be analyzed and then the Economic Order Quantity (QEE) model will be applied. The QEE model defines the optimal order quantity that should be ordered to minimize the costs associated with stock. At the end of the study, an optimization of stock management is achieved, meaning that there is a possibility of reducing the stock total cost by 39,69% based on the applied academic models.
info:eu-repo/semantics/publishedVersion
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Saberi, Nasseri Robin. "Stochastic EM for generic topic modeling using probabilistic programming". Thesis, Uppsala universitet, Statistiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447568.
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Probabilistic topic models are a versatile class of models for discovering latent themes in document collections through unsupervised learning. Conventional inferential methods lack the scaling capabilities necessary for extensions to large-scale applications. In recent years Stochastic Expectation Maximization has proven scalable for the simplest topic model: Latent Dirichlet Allocation. Performing analytical maximization is unfortunately not possible for many more complex topic models. With the rise of probabilistic programming languages, the ability to infer flexibly specified probabilistic models using sophisticated numerical optimization procedures has become widely available. These frameworks have however mainly been developed for optimization of continuous parameters, often prohibiting direct optimization of discrete parameters. This thesis explores the potential of utilizing probabilistic programming for generic topic modeling using Stochastic Expectation Maximization with numerical maximization of discrete parameters reparameterized to unconstrained space. The method achieves results of similar quality as other methods for Latent Dirichlet Allocation in simulated experiments. Further application is made to infer a Dirichlet-multinomial Regression model with metadata covariates. A real dataset is used and the method produces interpretable topics.
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Rosner, Helge. "Electronic structure and exchange integrals of low-dimensional cuprates". [S.l. : s.n.], 1999. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9470690.
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Lindgren, Jennifer. "Evaluating Hierarchical LDA Topic Models for Article Categorization". Thesis, Linköpings universitet, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-167080.
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With the vast amount of information available on the Internet today, helping users find relevant content has become a prioritized task in many software products that recommend news articles. One such product is Opera for Android, which has a news feed containing articles the user may be interested in. In order to easily determine what articles to recommend, they can be categorized by the topics they contain. One approach of categorizing articles is using Machine Learning and Natural Language Processing (NLP). A commonly used model is Latent Dirichlet Allocation (LDA), which finds latent topics within large datasets of for example text articles. An extension of LDA is hierarchical Latent Dirichlet Allocation (hLDA) which is an hierarchical variant of LDA. In hLDA, the latent topics found among a set of articles are structured hierarchically in a tree. Each node represents a topic, and the levels represent different levels of abstraction in the topics. A further extension of hLDA is constrained hLDA, where a set of predefined, constrained topics are added to the tree. The constrained topics are extracted from the dataset by grouping highly correlated words. The idea of constrained hLDA is to improve the topic structure derived by a hLDA model by making the process semi-supervised. The aim of this thesis is to create a hLDA and a constrained hLDA model from a dataset of articles provided by Opera. The models should then be evaluated using the novel metric word frequency similarity, which is a measure of the similarity between the words representing the parent and child topics in a hierarchical topic model. The results show that word frequency similarity can be used to evaluate whether the topics in a parent-child topic pair are too similar, so that the child does not specify a subtopic of the parent. It can also be used to evaluate if the topics are too dissimilar, so that the topics seem unrelated and perhaps should not be connected in the hierarchy. The results also show that the two topic models created had comparable word frequency similarity scores. None of the models seemed to significantly outperform the other with regard to the metric.
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Svensson, Karin, i Johan Blad. "Exploring NMF and LDA Topic Models of Swedish News Articles". Thesis, Uppsala universitet, Avdelningen för systemteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-429250.
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The ability to automatically analyze and segment news articles by their content is a growing research field. This thesis explores the unsupervised machine learning method topic modeling applied on Swedish news articles for generating topics to describe and segment articles. Specifically, the algorithms non-negative matrix factorization (NMF) and the latent Dirichlet allocation (LDA) are implemented and evaluated. Their usefulness in the news media industry is assessed by its ability to serve as a uniform categorization framework for news articles. This thesis fills a research gap by studying the application of topic modeling on Swedish news articles and contributes by showing that this can yield meaningful results. It is shown that Swedish text data requires extensive data preparation for successful topic models and that nouns exclusively and especially common nouns are the most suitable words to use. Furthermore, the results show that both NMF and LDA are valuable as content analysis tools and categorization frameworks, but they have different characteristics, hence optimal for different use cases. Lastly, the conclusion is that topic models have issues since they can generate unreliable topics that could be misleading for news consumers, but that they nonetheless can be powerful methods for analyzing and segmenting articles efficiently on a grand scale by organizations internally. The thesis project is a collaboration with one of Sweden’s largest media groups and its results have led to a topic modeling implementation for large-scale content analysis to gain insight into readers’ interests.
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Rachman, Luciano. "Modelagem de perdas com ações trabalhistas em instituições financeiras". reponame:Repositório Institucional do FGV, 2013. http://hdl.handle.net/10438/11096.
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As perdas trabalhistas nas Instituições Financeiras representam um valor considerável que devem ser consideradas no modelo de capital regulatório para risco operacional, segundo Basileia. A presente dissertação demonstra uma forma de mensurar o risco às quais as Instituições Financeiras estão expostas nesse tipo de perdas. Diversos tipos de distribuições são analisados conforme sua aderência tanto na frequência como na severidade das perdas. Para os valores de frequência, foi obtida uma amostra de dados real, enquanto para a severidade foram utilizados valores obtidos de relatórios de instituto de pesquisa que serviram de insumo para os cálculos de ações trabalhistas conforme legislação brasileira vigente na CLT (Consolidação das Leis do Trabalho).
According to Basel, the labor losses in Financial Institutions represent a substantial value that should be regarded in the model of regulatory capital for operational risk. This dissertation demonstrates a way to measure the risk to which Financial Institutions are exposed to in this type of loss. Several types of distributions are analyzed according to their adherence both in frequency and severity of losses. For frequency values, it was obtained a sample of actual data, whilst for the severity were used values given from reports of research institute which served as an input for the calculations of labor actions according to the present Brazilian legislation in CLT (Consolidation of Labor Laws).
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Gabbay, Arthur Monteiro. "Simulação de Monte Carlo para mensuração do risco operacional: aplicação do modelo LDA". Universidade Presbiteriana Mackenzie, 2010. http://tede.mackenzie.br/jspui/handle/tede/502.
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Previous issue date: 2010-08-11Fundo Mackenzie de Pesquisa
Many authors consider Operational Risk as a key variable for maintaining the balance of the global financial market. The objective of this dissertation is to study the development of a Advanced Measurement Approach (AMA), specifically the Loss Distribution Approach (LDA) on a database of actual operational losses. Being more specifically, this study promotes an analysis about the results and possible limitations related to the implementation of the model. To achieve these goals, it is needed to discuss the definitions of Operational Risk, Monte Carlo Simulation and value-at-risk (VaR), considering that these concepts are crucial to the implementation of the LDA.
O risco operacional é considerado por muitos autores uma variável determinante para a manutenção do equilíbrio do mercado financeiro global. O objetivo desta dissertação é estudar o desenvolvimento de uma modelo de Abordagem de Mensuração Avançada (AMA),mais especificamente a Loss Distribution Approach (LDA), sobre um banco de dados reais de perdas operacionais. Mais especificamente este estudo promove uma análise sobre os resultados e sobre eventuais limitações relacionadas à aplicação do modelo. Para realização destes objetivos, abordam-se as definições do risco operacional, simulação de Monte Carlo e value-at-risk (VaR), haja vista que estes são conceitos cruciais para a aplicação do LDA.
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Andersson, Harald. "Numerical and experimental study of confluent jets supply device with variable airflow". Licentiate thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29271.
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In recent years, application of confluent jets for design of ventilation supply devices has been studied. Similarly, numerus studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. This study investigates the combination of supply devices based on confluent jets and VAV, both in terms of the nearfield flow behavior of the device and the impact on thermal comfort, indoor air quality and energy efficiency on a classroom-level space when the airflow rate is varied. The method used in this study is an experimental field study where the confluent jets-based supply devices were compared to the previously installed displacement ventilation. The field study evaluated the energy efficiency, thermal comfort and indoor air quality of the two systems. In the case of the confluent jets supply devices, airflow rate was varied in order to see what impact the variation had on the performance of the system for each airflow rate. Furthermore, the confluent jets supply devices were investigated both experimentally and numerically in a well insulated test room to get high resolution data on the particular flow characteristics for this type of supply device when the airflow rate is varied. The results from the field study show nearly uniform distribution of the local mean age of air in the occupied zone, even in the cases of relatively low airflow rates. The airflow rates have no significant effect on the degree of mixing. The thermal comfort in the classroom was increased when the airflow rate was adapted to the heat load compared to the displacement system. The results lead to the conclusion that the combination of supply devices based on confluent jets can reduce energy usage in the school while maintaining indoor air quality and increasing the thermal comfort in the occupied zone. The results from the experimental and numerical study show that the flow pattern and velocity in each nozzle is directly dependent on the total airflow rate. However, the flow pattern does not vary between the three different airflow rates. The numerical investigation shows that velocity profiles for each nozzle have the same pattern regardless of the airflow rate, but the magnitude of the velocity profile increases as the airflow increases. Thus, a supply device of this kind could be used for variable air volume and produce confluent jets for different airflow rates. The results from both studies show that the airflow rate does not affect the distribution of the airflow on both near-field and room level. The distribution of air is nearly uniform in the case of the near-field results and the room-level measurement shows a completely uniform degree of mixing and air quality in the occupied zone for each airflow rate. This means that there is potential for combining these two schemes for designing air distribution systems with high energy efficiency and high thermal comfort and indoor air quality.Under senare tid har applikation av Confluent jets för design av tilluftsdon studerats. Många studier har även utförts över potentialen av att applicera variabelt luftflöde (VAV) för att minska energianvändningen i ventilationssystem. Denna studie undersöker möjligheten att kombinera Confluent jets-don med VAV, både med avseende på den lokala flödesbilden och dess påverkan på termisk komfort, luftkvalitet och energieffektivitet i en klassrumsmiljö där luftflödes varieras. Denna studie baseras dels på en experimentell fältstudie där tilluftsdon baserade på Confluents jets jämfördes med befintliga deplacerande tilluftsdon. Fältstudien utvärderade energieffektiviteten, den termiska komforten och luftkvaliteten för båda typerna av tillluftsdon. Confluent jets-donen testades under varierat luftflöde för att se påverkan av flödesvariationen på ventilationens prestation under de olika flödena. Utöver fältstudien testades Confluent jets-donen experimentellt och numeriskt i ett välisolerat test-rum för få den detaljerade flödeskarakteristiken för den här typen tilluftsdon vid varierat luftflöde. Resultaten från fältstudien visar på en jämn fördelning av den lokala luftsmedelåldern i vistelsezonen, även för fallen med relativt låga luftflöden. Luftflöden har ingen signifikant effekt på omblandningen. Den termiska komforten i klassrummet ökade när luftflödet anpassades efter värmelasten jämfört med de deplacerande donen. Slutsatsen från fältstudien är att kombinationen av VAV och Confluent jets-don kan användas för att minska energianvändningen på skolan och bevara luftkvaliteten och den termiska komforten i vistelsezonen. Resultaten från den experimental och numeriska studien visar luftflödet och lufthastigheten i varje enskild dysa är direkt beroende på det totala luftflödet genom donet. Dock är flödesfördelningen mellan dysorna oberoende av de tre olika luftflödena. Den numeriska undersökningen visar att flödesprofilen för varje dysa är konstant trots att flödet varieras, men amplituden för varje profil ökar med en höjning av luftflödet. Det betyder att tilluftsdon av den här typen kan användas med VAV för att producera Confluent jets för olika luftflöden. Resultaten från båda studierna visar att luftflöde inte påverkar fördelningen av luften vare sig längs luftdonen eller på rumsnivå. Fördelningen av luften är nästan helt jämn längs donen och på rumsnivå är omblandningen och luftkvalitet den samma för varje luftflöde. Det betyder att det finns potential för att kombinera det här två teknikerna för att designa luftdistribueringssystem med hög energieffektivitet och hög termisk komfort med god luftkvalitet.
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Čečotka, Miroslav. "Finanční analýza firmy LDM, spol. s r. o". Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-4078.
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Dissertation is divided into two major parts -- the former is dedicated to theoretic approches to financial analysis, the latter to application of previously gained knowledge in a company. The introduction of work is dedicated to the purpose, usage and approaches to financial analysis with respect to various users of the analysis output. Moreover the document in a very detailed way deals with sources of data for financial analysis processing including weak points and their reflection in ability of calculated indicators of the financial analysis (FA) to give evidence. The most attention is of cource paid to individual steps in thorough financial analysis -- ie. vertical and horizontal analysis of statements and calculations of proportionate indicators including indicator examples from separate spheres of the analysis. Systems of indicators -- parallel but mainly pyramidal, concretely Du-pont's model is used. Dissertation thereinafter is devoted to another indicators that are useful for appreciation of the financial company health, concretely Altman's model, Kralicek's quicktest, Index IN and economic value added (EVA indicator). Comparision with branch of activity that is the company work in is a part of dissertation too. In the second part of the work, a specific company is being analysed -- in successive steps meant in the previous part. After statement analysis and calculations of proportionate indicators, I evaluate to what degree the company is successful. Simultaneously the results can indicate that outputs from the well elaborated financial analysis are of a very useful source of information for company management.
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Jakel, Roland. "Das neue Kontaktmodell mit endlicher Reibung in Creo Simulate 3.0 : Theorie und Anwendung ; Vergleich mit dem reibungsfreien und unendlich reibungsbehafteten Kontaktmodell". Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-206817.
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Der Vortrag beschreibt die zugrunde liegende Theorie und die Softwarefunktionalität des in PTC Creo Simulate 3.0 eingeführten Kontaktmodells mit endlicher Reibung und vergleicht dieses mit den bis Creo Simulate 2.0 exklusiv verwendeten Kontaktmodellen (ideal reibungsfrei und unendlich reibungsbehaftet). An zwei Modellbeispielen (ein von zwei Bremsbacken geklemmtes Bremsschwert und ein verschraubtes Schwungrad) wird versucht, die Funktionsweise des neuen Modells zu demonstrieren. Wegen aktueller Qualitätsprobleme der Software wird die Brauchbarkeit der Kontaktmodelle für den Anwender bewertet (Stand Creo 3.0 M080 / Creo 2.0 M200) und umfangreiches Feedback an den Softwarehersteller PTC gegebenThe presentation describes the underlying theory and software functionality of the finite friction contact model introduced with PTC Creo Simulate 3.0. It is being compared with the friction-free and infinite friction contact model used exclusively until Creo Simulate 2.0. It is being tried to demonstrate the mode of operation of the new model with help of two examples: A brake sword clamped by two brake pads and a bolted flywheel. Because of actual software quality problems, the usability of the contact model for the user is being rated (status Creo 3.0 M080 / Creo 2.0 M200). Furthermore, comprehensive feedback is given to the software developer PTC
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Unsbo, Hanna. "Update of the LCA-software WAMPS : Proposing new emission factors and investigating the implications". Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302402.
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In recent decades, life cycle assessment (LCA) has become a commonly used approach worldwide when studying environmental impacts linked to waste management systems. These systems are of a complex nature which includes everything from technical solutions, the environmental influence, and various stakeholders. To facilitate studies within this area of research, different LCA models are often utilised. WAMPS is a software specifically developed for assessing the environmental and economic impacts for a waste management system. During recent years, the work to bring the model up to date has begun as the software has not been modernised since it was developed in the early 2000s. The purpose of this degree project is to propose new emission factors for recycling and virgin production of glass, aluminium, steel, and plastic. In addition to this, the study intends to investigate how the implementation of the new figures may affect the results obtained in WAMPS. To fulfil the purpose of the thesis, LCI datasets were collected for each material and evaluated according to three DQIs (Temporal representativeness, geographical representativeness, and documentation). New emission factors were developed based on the evaluation and discussions within the project group, to ensure that all relevant activities of the studied life cycles were included. The implications from implementing the new emission factors were investigated through a comparison with the old values. This was conducted through comparing the obtained results from WAMPS per one tonne of material as well as for a simple scenario. The evaluation of the collected LCI data shows that many of the datasets represent average production in countries within Europe and that the data were generally older than five years old. The results show that the datasets were primarily well documented according to the criterion utilised in this study. Processes from EcoInvent were mainly used to develop the proposed emission factors. The implementation of the new emission factors in WAMPS resulted in significant change in potential environmental impact per tonne of material. Especially for the impact category photooxidation formation. For the scenario, the results indicated that a significant change in potential environmental burden is received when implementing the new emission factors. A reduction in total impact was obtained for all categories where eutrophication showed the largest absolute difference. The developed emission factors are considered appropriate based on the design of this thesis. However, it is concluded that these have several limitations that are important to take into account if these were to be implemented in WAMPS in the future. In addition, it is considered established that an update may be considered reasonable based on the result obtained.Under de senaste decennierna har livscykelanalys (LCA) blivit ett vanligt tillvägagångssätt världen över vid analyser av potentiella miljöeffekter kopplade till avfallshanteringssystem. Dessa system är av komplex natur och inkluderar allt från teknologiska lösningar, miljöpåverkan samt flera intressenter. För att underlätta dessa studier används idag ofta olika LCA-modeller. WAMPS är ett program som är särskilt utvecklad för att bedöma både miljömässiga- och ekonomiska konsekvenser kopplat till avfallshanteringssystem. Under de senaste åren har arbetet med att uppdatera modellen påbörjat eftersom programvaran inte har uppdaterats sedan början av 2000-talet. Syftet med detta examensarbete är att föreslå nya emissionsfaktorer för återvinning och jungfrulig produktion av glas, aluminium, stål, och plast. Utöver detta avser studien att studera hur implementeringen av de nya siffrorna inverkar på resultatet som erhålls i WAMPS. För att uppfylla tesen av detta arbete samlades LCI data in för varje material och utvärderades enligt tre DQI:er (Temporal representativitet, geografisk representativitet och dokumentation). Nya utsläppsfaktorer utvecklades baserat på utvärderingen och genom diskussioner inom projektgruppen. Framförallt för att säkerhetsställa att alla relevanta aktiviteter i de studerade livscyklerna är inkluderade. Konsekvenserna av implementeringen av utsläppsfaktorerna undersöktes genom en jämförelse av resultat som erhölls i WAMPS då de nya samt de tidigare faktorerna nyttjas. Detta gjordes både per ton material samt genom ett enkelt scenario. Utvärderingen av den insamlade LCI datan påvisar att många av dataseten representerar genomsnittlig produktion inom Europa och att datan generellt var insamlad för minst 5 år sedan. Resultatet påvisar att dataseten är väldokumenterad enlig indikatorn som ställts upp i denna studie. Främst användes processer från EcoInvent för att utveckla de nya emissionsfaktorerna. Implementeringen av emissionsfaktorerna i WAMPS resulterade i signifikanta skillnader i potentiell miljöpåverkan per ton material, främst för bildning av fotooxid. För fallet med scenariot indikerade studiens resultat att en betydande förändring av den potentiella miljöbelastningen erhålls när de nya utsläppsfaktorerna implementeras. Dessutom påvisades en minskning av miljöeffekterna för alla kategorier varav eutrofiering visade den största absoluta skillnaden. Slutligen anses de utvecklade emissions faktorerna vara lämpliga utifrån utformningen av denna tes. Dock dras slutsatsen att dessa har flertalet begränsningar som är viktiga att ta i hänsyn ifall dessa implementeras i WAMPS i framtiden. Dessutom anses det vara fastställt att en fortsatt uppdatering kan anses rimlig utifrån det erhållna resultatet.
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Ringleb, Ansgar. "Numerische und experimentelle Untersuchung der fluiddynamischen Eigenschaften von Strahlströmungen in begrenzten Räumen". Universitätsverlag der Technischen Universität Chemnitz, 2017. https://monarch.qucosa.de/id/qucosa%3A20850.
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In der vorliegenden Arbeit wurden Strömungen räumlich begrenzter Strahlen untersucht. Zum einen wurde die Ausströmung eines runden Strahls in ein Rohr betrachtet, der sog. begrenzte Strahl. Zum anderen wurde die Ausströmung von 7 hexagonal angeordneten runden Strahlen in ein Rohr betrachtet, das sog. hexagonale Strahlbündel. Die Motivation zur vorliegenden Arbeit ergab sich aus der Entwicklung von Durchflussmessgeräten, die als Bypassapparaturen ausgeführt sind und stromabwärts des Staudruckkörpers ein Strömungsgebiet mit begrenzten Strahlen aufweisen. Dafür wurden mit Hilfe der Ähnlichkeitstheorie die zugrundeliegenden Kennzahlen bestimmt. Besonderes Augenmerk lag auf der Charakterisierung der instationären bzw. turbulenten Strömungseigenschaften für Reynolds-Zahlen zwischen 1.000 und 20.000. Es wurden die selbstähnlichen Eigenschaften der Strömungen untersucht, wobei sich insbesondere für den begrenzten Strahl wichtige Erkenntnisse ergaben. Für das hexagonale Strahlbündel wurden mit Hilfe der numerischen Strömungssimulation die grundlegenden Eigenschaften des Strömungsfeldes untersucht. Dabei weisen die Geometriekennzahlen einen dominierenden Einfluss auf. So konnten in Abhängigkeit zum Durchmesserverhältnis und Strahlabstand drei Strömungsformen identifiziert und experimentell mittels Laser-Doppler Anemometrie nachgewiesen werden. Eine wesentliche Fragestellung bestand in der Anwendung der numerischen Strömungssimulation, des RANS-Ansatzes und des SST-Turbulenzmodells. Dazu wurde die Anpassung der Modellkoeffizienten untersucht, wobei für den begrenzten Strahl ein allgemein gültiger Satz gefunden wurde.In the present work flows of spatially limited radiation were investigated. On the one hand, the outflow of a round jet into a pipe was considered, the so-called confined jet. On the other hand, the outflow of 7 hexagonal arranged round jets into a pipe was con-sidered, the so-called hexagonal jet array. The motivation for the present work arose from the development of flowmeters which are designed as bypass apparatures that have a jet array flow downstream of the dynamic pressure body. For this purpose the underlying similarity parameters were determined. Special attention was paid to the cha-racterization of transient and turbulent flow properties for Reynolds numbers between 1,000 and 20,000. The self-similar properties of the flows were investigated with im-portant findings in particular for the confined jet. For the hexagonal jet array the basic properties of the flow field were investigated by using computational fluid dynamics. The geometric similarity parameters have a dominant influence. Thus, depending on the di-ameter ratio and jet distance ratio, three flow patterns could be identified and experimen-tally detected by the use of laser Doppler anemometry. An important question was the application of the computational fluid dynamic method, the RANS approach and the SST turbulence model. For this purpose a generally valid set of model coefficients was found for the confined jet flow.
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Ljungberg, Lucas. "Using unsupervised classification with multiple LDA derived models for text generation based on noisy and sensitive data". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255010.
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Creating models to generate contextual responses to input queries is a difficult problem. It is even more difficult when available data contains noise and sensitive data. Finding models or methods to handle such issues is important in order to use data for productive means.This thesis proposes a model based on a cooperating pair of Topic Models of differing tasks (LDA and GSDMM) in order to alleviate the problematic properties of data. The model is tested on a real-world dataset with these difficulties as well as a dataset without them. The goal is to 1) look at the behaviour of the different topic models to see if their topical representation of the data is of use as input or output to other models and 2) find out what properties can be alleviated as a result.The results show that topic modeling can represent the semantic information of documents well enough to produce well-behaved input data for other models, which can also deal well with large vocabularies and noisy data. The topical clustering of the response data is sufficient enough for a classification model to predict the context of the response, from which valid responses can be created.Att skapa modeller som genererar kontextuella svar på frågor är ett svårt problem från början, någonting som blir än mer svårt när tillgänglig data innehåller både brus och känslig information. Det är både viktigt och av stort intresse att hitta modeller och metoder som kan hantera dessa svårigheter så att även problematisk data kan användas produktivt.Detta examensarbete föreslår en modell baserat på ett par samarbetande Topic Models (ämnesbaserade modeller) med skiljande ansvarsområden (LDA och GSDMM) för att underlätta de problematiska egenskaperna av datan. Modellen testas på ett verkligt dataset med dessa svårigheter samt ett dataset utan dessa. Målet är att 1) inspektera båda ämnesmodellernas beteende för att se om dessa kan representera datan på ett sådant sätt att andra modeller kan använda dessa som indata eller utdata och 2) förstå vilka av dessa svårigheter som kan hanteras som följd.Resultaten visar att ämnesmodellerna kan representera semantiken och betydelsen av dokument bra nog för att producera välartad indata för andra modeller. Denna representation kan även hantera stora ordlistor och brus i texten. Resultaten visar även att ämnesgrupperingen av responsdatan är godartad nog att användas som mål för klassificeringsmodeller sådant att korrekta meningar kan genereras som respons.
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Sagström, Johan. "Streamlined LCA model and complete assessment of a hydraulic drive system". Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217801.
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This master thesis was commissioned by Bosch Rexroth AB and carried out over the course of 20 weeks between January and May 2017. The company produces hydraulic drive systems for different industrial applications, mostly for rotating heavy loads under constant, low speed and high torque. The products have a long life span and thus, optimizing the design of their products can have a considerable impact in terms of energy efficiency and environmental performance. In order to gain a better understanding of what role individual parts of the system have in terms of sustainability and to further investigate the entire life-cycles and environmental footprints of their products, Bosch Rexroth looked to the Life Cycle Assessment (LCA) method. There were two different major aims to this thesis project. The first aim was to provide Bosch Rexroth with in-depth knowledge around how their product systems perform from an environmental point of view, and more specifically one particular hydraulic drive. The second aim was to develop a tool tailor-made for Bosch Rexroth, capable of delivering simplified LCAs in a quick and easy fashion. The purpose of the tool was to assist Bosch Rexroth in decisionmaking during product development. In addition, the simplified tool should come with an interface easy to understand and use. The study was done according to a life cycle assessment approach and followed applicable international standards ISO 14040 and 14044. The LCA was simulated in the SimaPro 8 software, which was also used for all calculations including impact assessment according to the ReCiPe methodology. The results of the LCA were considered stable and representative for a specific case study of a hydraulic drive in operation at a paper mill in Sweden. The results from the simplified LCA model were considered satisfactory and within desired tolerance. One of the key conclusions of the thesis was a take-back system for some of the parts of the hydraulic drive could benefit the environment to a large extent, which should encourage Bosch Rexroth to examine such possibilities further.Detta examensarbete genomfördes på uppdrag av Bosch Rexroth AB under 20 veckor mellan januari och maj 2017. Företaget producerar hydrauliska drivsystem för många olika industriella applikationer, främst för att rotera tunga laster under konstant, låg hastighet och högt vridmoment. Produkterna har en lång livslängd vilket innebär att optimering av designen kan ha en betydande inverkan på energieffektivitet och miljöprestanda. Detta examensarbete utfördes i syfte att ge Bosch Rexroth en bättre förståelse för vilken roll enskilda delar av systemet har när det gäller miljöpåverkan. Projektet hade två huvudmål. Det första målet var att ge Bosch Rexroth en djupare kunskap om hur deras produktsystem påverkar miljön, och mer specifikt en särskild hydraulisk motor. Det andra målet var att utveckla ett verktyg som var skräddarsytt för Bosch Rexroth och som kunde leverera förenklade livscykelanalyser på ett snabbare och enklare sätt än den som avhandlas i denna rapport. Dessa förenklade analyser skulle sedan kunna användas som beslutsunderlag i anknytning till produktutveckling. Utöver det skulle det skräddarsydda verktyget ha ett grafiskt gränssnitt som skulle vara lätt att förstå och använda. Livscykelanalysen gjordes enligt gällande internationella standarder ISO 14040 och 14044. Analysen simulerades i mjukvaran SimaPro 8, som också användes för alla påverkansberäkningar och konsekvensbedömning enligt ReCiPe-metoden. Resultaten ansågs stabila med avseende på den genomförda fallstudien av en motor i drift vid ett pappersbruk i Sverige. Resultaten från den förenklad LCA-modellen betraktades som tillfredsställande och inom den önskade toleransen. En av de viktigaste slutsatserna av arbetet var att ett strukturerat återanvändningssystem för vissa av detaljerna i motorerna skulle kunna ge en potentiellt mycket fördelaktig miljömässig påverkansförbättring. Bosch Rexroth uppmuntras därför att vidare undersöka möjligheterna med ett sådant system, både i Sverige och på de globala marknaderna.
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Spivak, Alexander. "A Theoretical Model for Life Cycle Inventory Analysis using a Disaggregated Hybrid Methodology". University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1310035001.
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Padoveze, Amanda Felippe. "Cinética plasmática e biodistribuição de colesterol livre e colesterol esterificado de uma nanoemulsão (LDE) que se liga aos receptores de LDL em animais controle e com indução de aterosclerose". Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-25062009-120520/.
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Estudos anteriores em nosso laboratório demonstraram que pacientes portadores de DAC apresentam diferenças no metabolismo do CL e CE de uma nanoemulsão artificial rica em colesterol (LDE), nos quais o CL apresentou maior remoção plasmática e depósito arterial. Dando continuidade a esta linha de pesquisa, neste trabalho foram avaliadas a cinética plasmática, representada pela taxa fracional de remoção (TFR), e a captação do 3H-colesterol livre (3H - CL) e 14C - colesterol esterificado (14C - CE) da LDE por segmentos arteriais e por órgãos de coelhos normais (n=17) e coelhos submetidos à indução de aterosclerose por dieta rica em colesterol (1%) (n=13). Além disso, avaliou-se a captação in vitro do 3H CL e do 14C CE da LDE por células endoteliais aórticas de coelhos. Por último, foi avaliada a influência da inibição da enzima lecitina-colesterol aciltransferase (LCAT), e indiretamente, a esterificação do CL em ratos normais (n=9) e tratados com diazepam (n=9). Em coelhos que receberam dieta normal, não houve diferença entre a remoção plasmática do 3H - CL e do 14C - CE. Em coelhos que desenvolveram hiperlipidemia e aterosclerose através de dieta rica em colesterol, o 3H - CL foi removido mais rapidamente da circulação do que o 14C - CE (p<0,05), entretanto houve maior captação de 14C - CE do que de 3H - CL no arco aórtico (p<0,05). Em ambos os grupos, os principais órgãos captadores de colesterol da LDE foram fígado, pulmão, adrenais e baço (p<0,05). Tanto a TRF quanto a captação hepática de 3H - CL e 14C - CE foram menores no grupo que recebeu a dieta rica em colesterol. Em células endoteliais aórticas de coelhos, a captação de 3H - CL foi maior que a de 14C CE independente da massa de LDE incubada (p<0,01). Em ratos, não houve diferença entre a captação das duas formas de colesterol da LDE pela aorta no grupo controle, entretanto, quando a atividade da LCAT foi diminuída pelo tratamento com diazepam, a captação arterial de 3H - CL foi maior do que a de 14C - CE (p< 0,01). A hiperlipidemia e distúrbios no processo de estabilização do colesterol, favorecem a dissociação entre o CL e o CE das lipoproteínas, e podem elevar o risco de desenvolvimento da aterosclerose, assim como agravar o processo de aterogênese.I n previously studies, it was shown that free cholesterol (FC) and cholesterol ester (CE) of a cholesterol-rich nanoemulsion (LDE) behaves differently in patients with coronary artery disease (CAD). The FC plasma clearance and arterial deposition is greater than CE. In the present study we evaluate the plasma kinetics, estimated by the fractional clearance rate (FCR), and the tissue uptake of 3H-free cholesterol (3H FC) and of 14C cholesterol ester (14C - CE) of LDE by arterial segments and organs of rabbits with (n=13) and without atherosclerosis (n=17). Furthermore, it was evaluated the in vitro uptake of 3H FC and 14C - CE by rabbit aortic endothelial cells. Finally, it was evaluated the inhibition of the enzyme lecithin-cholesterol acyltransferase (LCAT), and indirectly, the FC esterification in rats non-treated (n=9) and treated with diazepam (n=9). In rabbits without atherosclerosis that received an standard diet there was no difference between the plasma clearance of 3H FC and 14C CE. In rabbits with hyperlipidemia and atherosclerosis induced by the cholesterol-rich diet the 3H - FC was removed faster than 14C - CE (p<0.05), however the arch aortic uptake of 14C CE was greater than of 3H - FC (0p<0.05). In both groups, liver, lungs, adrenals and spleen were the principal sites of LDE cholesterol uptake. The FCR and tissue uptake were smaller in rabbits with than those without atherosclerosis. In rabbit aortic endothelial cells the 3H - FC uptake was greater than 14C CE independently of incubated LDE mass (p<0.01). In control rats there was no difference on the arterial uptake of both cholesterol forms of LDE, but when the LCAT activity was diminished by the diazepam treatment, the arterial uptake of 3H FC were greater than 14C CE (p< 0.01). The hyperlipidemia and cholesterol stability alterations may lead to dissociation between lipoproteins FC and CE. This dissociation may increase the risk for atherosclerosis and likewise enhance the severity of atherosclerosis.
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Bozkurt, Eray Erdoğdu Erkarslan Özlem. "Life Ciycle Assessment (LCA) Based Home Rating Model For İzmir (HRM-İzmir)/". [s.l.]: [s.n.], 2007. http://library.iyte.edu.tr/tezler/master/mimarlik/T000632.pdf.
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Jutila, Arimatti. "Lateral heterogeneity in model membranes : inducements and effects". Helsinki : University of Helsinki, 2001. http://ethesis.helsinki.fi/julkaisut/laa/biola/vk/jutila/.
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Simon, Doris. "Identifizierung Atherosklerose-relevanter Genloci am Modell LDL-Rezeptor defizienter Mäuse". Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177913.
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Du, Guangli. "Life cycle assessment of bridges, model development and case studies". Doctoral thesis, KTH, Bro- och stålbyggnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-161196.
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In recent decades, the environmental issues from the construction sector have attracted increasing attention from both the public and authorities. Notably, the bridge construction is responsible for considerable amount of energy and raw material consumptions. However, the current bridges are still mainly designed from the economic, technical, and safety perspective, while considerations of their environmental performance are rarely integrated into the decision making process. Life Cycle Assessment (LCA) is a comprehensive, standardized and internationally recognized approach for quantifying all emissions, resource consumption and related environmental and health impacts linked to a service, asset or product. LCA has the potential to provide reliable environmental profiles of the bridges, and thus help the decision-makers to select the most environmentally optimal designs. However, due to the complexity of the environmental problems and the diversity of bridge structures, robust environmental evaluation of bridges is far from straightforward. The LCA has rarely been studied on bridges till now. The overall aim of this research is to implement LCA on bridge, thus eventually integrate it into the decision-making process to mitigate the environmental burden at an early stage. Specific objectives are to: i) provide up-to-date knowledge to practitioners; ii) identify associated obstacles and clarify key operational issues; iii) establish a holistic framework and develop computational tool for bridge LCA; and iv) explore the feasibility of combining LCA with life cycle cost (LCC). The developed tool (called GreenBridge) enables the simultaneous comparison and analysis of 10 feasible bridges at any detail level, and the framework has been utilized on real cases in Sweden. The studied bridge types include: railway bridge with ballast or fix-slab track, road bridges of steel box-girder composite bridge, steel I-girder composite bridge, post tensioned concrete box-girder bridge, balanced cantilever concrete box-girder bridge, steel-soil composite bridge and concrete slab-frame bridge. The assessments are detailed from cradle to grave phases, covering thousands of types of substances in the output, diverse mid-point environmental indicators, the Cumulative Energy Demand (CED) and monetary value weighting. Some analyses also investigated the impact from on-site construction scenarios, which have been overlooked in the current state-of-the-art. The study identifies the major structural and life-cycle scenario contributors to the selected impact categories, and reveals the effects of varying the monetary weighting system, the steel recycling rate and the material types. The result shows that the environmental performance can be highly influenced by the choice of bridge design. The optimal solution is found to be governed by several variables. The analyses also imply that the selected indicators, structural components and life-cycle scenarios must be clearly specified to be applicable in a transparent procurement. This work may provide important references for evaluating similar bridge cases, and identification of the main sources of environmental burden. The outcome of this research may serve as recommendation for decision-makers to select the most LCA-feasible proposal and minimize environmental burdens.QC 20150311
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Nikkarinen, Tuuli. "Evaluation model for continuing medical education : a case study". Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/laa/kansa/vk/nikkarinen/.
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Bondesson, Anna. "Comparative LCA model on renewable power solutions for off-grid radio base stations". Thesis, KTH, Industriell ekologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-53247.
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Globally, there are approximately 900 000 telecommunication radio base station sites (RBS-sites)located in areas without access to the electrical grid. Traditionally, these sites are powered by dieselgenerators, consuming large amounts of fossil diesel fuel. Diesel combustion is connected both toenvironmental impacts and high economical expenses for the mobile operators. As the mobilenetwork expansion is increasingly located in off-grid areas of developing countries, the search forrenewable power alternatives has been intensified. This Master thesis presents results from a life cycle assessment (LCA) of photovoltaic and windturbine hybrid power configurations for off-grid RBS-sites. The LCA covers environmental impactsfrom all life cycle activities of the hybrid system: from raw material extraction, manufacturing, andtransportation, to on-site usage, and disposal. To enable assessment of variable hybrid configurations, four scalable sub-models were constructed:one diesel sub-model including the generator and yearly diesel consumption, one back-up batterysub-model, one PV module sub-model and one wind turbine sub-model. Included in the sub-modelswere required site equipment; e.g. foundations for generators, PV modules and battery banks, powerconverters, fuel tanks and possible housings. The number of generators, liters of fuel consumed peryear, number of battery cells, square meters of PV module and number of wind turbines were set asvariables. Hereby RBS-sites with different capacities and availability of renewable source could bemodeled. A hybrid configuration including 21 square meters photovoltaic modules, one wind turbine, a storageof 36 (12 V) batteries and one generator back-up consuming 1500 liters of diesel fuel per year wasevaluated. The hybrid site represents between 11 and 16 percent of the different environmentalimpact potentials, global warming potential specifically representing 13 percent, caused by acorresponding traditional diesel site consuming 20000 liters of fuel per year. The most importantparameters influencing the environmental performance of the renewable hybrid site following thediesel fuel production and combustion are the production energy mix and energy intensive processesincluding the up-stream silicon and lead processing. The thesis confirmed great environmental benefits of using wind and solar power at RBS-sites. Theadditional gain of applying wind power when feasible to decrease the PV module area or batterycapacity required was also demonstrated. The great importance of manufacturing location andelectricity mix should encourage Ericsson to map supplier manufacturing locations, searchingpossibilities to decrease the environmental impacts from the manufacturing phase of the differentsub-systems.Idag finns det omkring 5 miljoner radiobasstationer i det i det globala telekomnätet, varav 900000 ärbelägna i områden utan tillgång till elektricitet. Traditionellt drivs dessa stationer av dieselgeneratorersom konsumerar stora mängder diesel. Dieselförbränningen bidrar både till lokala och globalamiljöeffekter samt höga driftkostnader för mobiloperatörerna. Expansionen av mobilnätet sker i alltstörre utsträckning i områden i utvecklingsländer utan elförsörjning, vilket har ökat intresset föralternativa kraftkällor. Inom examensarbetet har ett redskap för jämförande livscykelanalys (LCA) av förnyelsebara krafthybridlösningarför radiobasstationer utvecklats. Hybriderna kombinerar solceller och vindturbinermed dieselförbränning och batterier. Genom att använda LCA inkluderas miljöeffekter från alla steg i hybridsystemets livscykel; frånutvinning av råmaterial och tillverkning av sub-system, transport, användning på RBS-siten till denslutliga avvecklingen. För att kunna utvärdera olika hybridkonfigurationer skapades 4 olika delmodeller: en delmodell fördieselförbränning innefattande generator och dieselkonsumption, en batteri-delmodell, en PVdelmodellsamt en vindturbin-delmodell. Delmodellerna inkluderar även nödvändiga komponentersom betonggrund till generatorer, PV-modulerna och batteribanken. Antal dieselgeneratorer,battericeller, vindturbiner samt PV-moduler och liter dieselkonsumption kan varieras för att simuleraen specifik anläggning. En hybridlösning med 21 m2 solceller, en vindturbin, 36 stycken (12V) battericeller och endieselgenerator som konsumerar 1500 liter diesel per år analyserades. Hybridlösningen ger upphovtill miljöeffekter motsvarande mellan 11 och 16 procent, global uppvärmning motsvarande 13procent, av miljöeffekterna orsakade av en traditionell dieselkonfiguration som konsumerar omkring20000 liter diesel per år. Betydelsefulla parametrar som påverkar miljöeffekterna frånhybridlösningen förutom produktion och förbränning av diesel är vilken elektricitetsmix somanvänds vid tillverkning av de olika komponenterna och energiintensiva processer som kisel- ochblyframställning. Resultaten tydliggör de stora minskningar av miljöeffekterna som en övergång från dieselförbränningtill sol- och vindkraft på RBS-anläggningar kan ge. Den relativa förbättringen av att installeravindturbiner för att minimera mängden sol- och battericeller har även visats. Betydelsen avproduktionsplats och elektricitetsmix för den totala miljöpåverkan bör motivera Ericsson attkartlägga och välja tillverkare som innebär ett litet bidrag till de totala miljöeffekterna.
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Kouri, Drew P. "A Nonlinear Response Model for Single Nucleotide Polymorphism Detection Assays". Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1212598582.
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Skarabis, Lea [Verfasser]. "Modell zur Langzeitprognose von Zahnextraktionen auf Basis parodontaler Parameter / Lea Skarabis". Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2011. http://d-nb.info/1026263816/34.
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Sunčica, Vještica. "Model upravljanja uticajima procesa proizvodnje podnih obloga na životnu sredinu primenom metode ocenjivanja životnog ciklusa (LCA)". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2014. http://www.cris.uns.ac.rs/record.jsf?recordId=85071&source=NDLTD&language=en.
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U disertaciji je predložen opšti model za upravljanje uticajima na životnu sredinu u okviru proizvodnih procesa proizvodnje podnih obloga, zasnovan na metodi ocenjivanja životnog ciklusa proizvoda i procesa. Model je sistematično predstavljen kroz opis osnovnih delova - modela inventara životnog ciklusa i modela za ocenjivanje uticaja životnog ciklusa. Disertacija sadrži i detaljan opis podloga na kojima je model razvijen. Verifikacija razvijenog modela je sprovedena kroz tri studije slučaja.The dissertation proposes a general model for managing environmental impacts within the manufacturing process of flooring coverings, based on the method of life cycle assessment of products and processes. The model is systematically present by describing the main parts - the life cycle inventory model and a model for the life cycle impact assessment. Dissertation contains a detailed description of the background bases on which the model is developed. Verification of the model is carried out through three case studies.
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Ponweiser, Martin. "Latent Dirichlet Allocation in R". WU Vienna University of Economics and Business, 2012. http://epub.wu.ac.at/3558/1/main.pdf.
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Topic models are a new research field within the computer sciences information retrieval and text mining. They are generative probabilistic models of text corpora inferred by machine learning and they can be used for retrieval and text mining tasks. The most prominent topic model is latent Dirichlet allocation (LDA), which was introduced in 2003 by Blei et al. and has since then sparked off the development of other topic models for domain-specific purposes.
This thesis focuses on LDA's practical application. Its main goal is the replication of the data analyses from the 2004 LDA paper ``Finding scientific topics'' by Thomas Griffiths and Mark Steyvers within the framework of the R statistical programming language and the R~package topicmodels by Bettina Grün and Kurt Hornik. The complete process, including extraction of a text corpus from the PNAS journal's website, data preprocessing, transformation into a document-term matrix, model selection, model estimation, as well as presentation of the results, is fully documented and commented. The outcome closely matches the analyses of the original paper, therefore the research by Griffiths/Steyvers can be reproduced. Furthermore, this thesis proves the suitability of the R environment for text mining with LDA. (author's abstract)Series: Theses / Institute for Statistics and Mathematics
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Hugas, Sabater Jaume. "Modelo integrador de programas de desarrollo de liderazgo (LDP) en Executive Education". Doctoral thesis, Universitat de Girona, 2015. http://hdl.handle.net/10803/328714.
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Los LDP (programas de desarrollo de liderazgo) de los centros de Executive Education de las escuelas de negocio se pueden definir como el proceso académico de desarrollo de capacidades de liderazgo de los participantes de una misma empresa o consorcio de empresas, con el fin de implantar y acelerar la estrategia de la corporación o de las corporaciones donde trabajan.
La metodología de la tesis ha consistido en realizar un benchmark de los centros de Executive Education en el mundo, analizar los modelos del estado de la cuestión así como la literatura de las tres fases de los programas LDP.
Mediante worshops, análisis de LDP previos y entrevistas con directivos, doctores y profesores se formularon las hipótesis propuestas de la Tesis y un modelo integrador de LDPs que fue finalmente validado y ampliado con el estudio cualitativo de tres casos tanto a nivel individual como comparativo.
La contribución de la tesis ha sido un modelo integrador de programas de desarrollo de Liderazgo (LDP) en Executive Education, que pueda servir de apoyo a los centros de Executive Education de las Universidades así como a las Universidades Corporativas o las "Academies" de las empresas para diseñar, impartir y evaluar sus programas customizados LDP.We can define the Leadership Development Programs (LDPs) offered by business school´s Executive Education units as academic processes to develop the Leadership skills of program participants (whether from a single company or consortium of companies) and to implement and accelerate the corporate strategy of the firms in which they work. The methodology applied in this thesis have consisted on doing a benchmark of Executive Education centers in the world, analyzing the state-of-the-art models as well as the literature based on the three phases of LDP programs and carrying out research based on workshops, LDP´s courses and interviews with executives, PhDs and faculty, to formulate the thesis hypotheses and the LDP model that have been validated and expanded with the analysis of three case studies on two levels: individual and comparative. Thesis contribution have been an integrative LDP (Leadership Development Program) Model for Executive Education that could help the Universities Executive education Centers as well the Corporate Universities or Academies of the companies to design, deliver and evaluate their LDPs.
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Babarenda, Gamage Gayathri. "A new model for assessing sustainability of complex systems: Integrating LCA and RA for sustainability". Thesis, University of Auckland, 2011. http://hdl.handle.net/2292/8348.
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Assessment of sustainability is an essential step in determining if action taken is sustainable. Early research in sustainability assessment was based on reconciling the three pillars (environmental, economic and social) using the weak sustainability model. Today there are numerous indicators (single and composite) for measuring impacts in the three systems (environmental, economic and social) using the strong sustainability model where current thinking emphasises the need for system thinking rather than the reductionist concept of pillars. Most existing indices/methods measure single aspects of sustainability and the more integrated indicators are aimed at national or global level assessments. A review of existing indicators, methods and models within the context of complex system sustainability showed that no single existing index, method or model was able to assess sustainability of complex systems since most fail to account for complex system characteristics such as system dynamics, interconnections and interdependencies of system components, system's ability to learn and remember, emergence of novel behaviours, co-evolution, etc. However, two analytical methods, Life Cycle Assessment (LCA) and risk assessment (RA), were found to have significant potential for addressing concerns regarding sustainability of complex systems as they were able to account for complex system characteristics. Thus LCA and RA were integrated in a new model to assess sustainability. The model is tested on case study product systems to illustrate applicability, potential issues and areas for improvement.
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Halonen, Maria. "Monogenic model for autoimmune diseases : molecular basis of autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED)". Helsinki : University of Helsinki, 2003. http://ethesis.helsinki.fi/julkaisut/laa/haart/vk/halonen/.
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Klein, Pasma Didrik, i Anton Rudberg. "En kombinerad LCA och LCC-modell för att kvantifiera komponenters miljöpåverkan och kostnad". Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85454.
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Nohra, Hannan. "Miljöbedömning för framställning av en modul : - med LCA metodik och generiska LCI data". Thesis, Karlstads universitet, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-75426.
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Kopřiva, Adam. "Rozpoznání obličeje". Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237264.
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This master's thesis considers methods of face recognition. There are described methods with different approachs: knowledge-based methods, feature invariant approaches, template matching methods and appearance-based methods. This master's thesis is focused particulary on template matching method and statistical methods like a principal component analysis (PCA) and linear discriminant analysis (LDA). There are described in detail template matching methods like active shape models (ASM) and active appearance models (AAM).
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Adams, David R. "The low-density lipoprotein receptor as a model for studying candidate-locus linkage disequilibrium and allelic association /". Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/10852.
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Pakkala, Ilkka. "Vitamin D analogs in experimental leukemia and transplantation models". Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/laa/kliin/vk/pakkala/.
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Almeida, M?rlon Vin?cius Gama. "Acesso aos servi?os na aten??o ? sa?de da fam?lia em dois cen?rios da Bahia, Brasil: organiza??o, modelo e participa??o social". Universidade Estadual de Feira de Santana, 2013. http://localhost:8080/tede/handle/tede/276.
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The universal and equitable access is essential to analyze the relationship between the user and health services, as it provides the opportunity to host the man, individually and collectively, their entry into the system, in expressing their need for health, defense of equal rights and social justice, configuring it as an exercise to achieve citizenship. However, it is necessary to overcome reductionist link between access and "gateway", as commonly used, for achieving higher senses that portray as an instrument full of transformative possibilities of reality. This research aimed to discuss the organization of users' access to health services in family health and their interfaces with the model of health care in two scenarios of Bahia, Brazil, and analyze how social participation happens in the construction of collective demands for accessing health services in family health in those scenarios. Configured as a qualitative study, the number of subjects was defined by progressive inclusion, interrupted by saturation criterion. The study subjects were 102 people, distributed among three groups representing: group I (health team - 49), group II (USF users - 37) and group III (SUS municipal leaders - 16). Technical data collection: semi-structured and systematic observation. Method of analysis: thematic content analysis. The results show that the organization of access to family health occurs from scheduling demand or demand for free, while the latter refers to the urgent care and emergency mostly and the choice of marking model was agreed with users in community meetings. Many speeches converged on the difficulties that the lack of material resources and maintenance entail the construction of a universal access and quality. Much of the speech that brought the number of vacancies for additional tests and diagnostics, as well as consultations with experts, is insufficient and is far beyond the demand presented. From this perspective, the Health Councils arise within the conjuncture of popular participation and social control as a privileged place for listening to the community and the emergence of significant changes to society, though, only one respondent group II has demonstrated knowledge about the importance of social control and its potential is still very far from expected. Anyway, many times, we were awakened the sense that users had to go through a funnel to the realization of its entry in the health services, which represents the amount of barriers that need to be overcome in gaining entry into the system, although Many users can not, in practice, see their right to health care guaranteed.
O acesso universal e equitativo ? essencial para a an?lise das rela??es entre o usu?rio e os servi?os de sa?de, pois se constitui a ocasi?o de acolhimento do homem, individual e coletivo, seu ingresso no sistema, na express?o da sua necessidade de sa?de, em defesa da igualdade de direitos e justi?a social, configurando-se como um exerc?cio para o alcance da cidadania. Contudo, ? necess?rio ultrapassar-se a liga??o reducionista entre acesso e ?porta de entrada?, t?o comumente utilizada, para o alcance de sentidos maiores, que o retratem como um instrumento repleto de possibilidades transformadoras da realidade. Esta pesquisa teve como objetivos discutir a organiza??o do acesso dos usu?rios aos servi?os de sa?de na Sa?de da Fam?lia e suas interfaces com o modelo de aten??o ? sa?de em dois cen?rios da Bahia, Brasil e analisar como acontece a participa??o social na constru??o das demandas coletivas para acessar os servi?os de sa?de na Sa?de da Fam?lia nos referidos cen?rios. Configurou-se como um estudo qualitativo, tendo o n?mero de sujeitos sido definidos por inclus?o progressiva, interrompida pelo crit?rio de satura??o. Os sujeitos do estudo foram 102 pessoas, distribu?das entre tr?s grupos de representa??o: grupo I (equipe de sa?de - 49); grupo II (usu?rios da USF - 37) e grupo III (dirigentes do SUS municipal - 16). T?cnica de coleta de dados: entrevista semi-estruturada e observa??o sistem?tica. M?todo de an?lise: an?lise de conte?do tem?tica. Os resultados revelam que a organiza??o do acesso na Sa?de da Fam?lia d?-se a partir do agendamento da demanda ou por demanda livre, sendo que esta ?ltima refere-se aos atendimentos de urg?ncia e emerg?ncia na sua grande maioria e a escolha deste modelo de marca??o foi pactuada com os usu?rios em reuni?es comunit?rias. Muitos discursos convergiram para as dificuldades que a falta de recursos materiais e de manuten??o acarretam na constru??o de um acesso universal e com qualidade. Grande parte das representa??es trouxe que o n?mero de vagas para a realiza??o de exames complementares e de diagn?sticos, bem como as consultas com especialistas, ? insuficiente e est? muito al?m da demanda apresentada. Nessa perspectiva, os Conselhos de Sa?de surgem dentro da conjuntura da participa??o popular e do controle social como um espa?o privilegiado para a escuta da comunidade e o despertar de mudan?as significativas para a sociedade, embora, apenas um entrevistado do grupo II tenha demonstrado conhecimento acerca da import?ncia do controle social e seu potencial encontra-se, ainda, muito distante do esperado. Enfim, foi-nos despertado a sensa??o de que os usu?rios precisavam passar por um funil para a efetiva??o da sua entrada nos servi?os de sa?de, o que representa a quantidade de barreiras que precisam ser vencidas na conquista do acesso ao sistema, embora, muitos usu?rios n?o consigam, na pr?tica, ver o seu direito de assist?ncia ? sa?de garantida.
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Park, Joonsuk. "Using Sequential Sampling Models to Detect Selective Infuences: Pitfalls and Recommendations". The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu157470864789277.
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Landes, Jasmin K. "Hemispheric differences in the temporal updating in short narrative situation models using a LDT". Thesis, Landes, Jasmin K. (2011) Hemispheric differences in the temporal updating in short narrative situation models using a LDT. Honours thesis, Murdoch University, 2011. https://researchrepository.murdoch.edu.au/id/eprint/10608/.
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Recent research into situation model representations has demonstrated the neglect of the temporal dimension relative to the remaining dimensions that govern the formation of situation model representations. Furthermore, literature has recently demonstrated right hemisphere (RH) involvement in the processing, integrating and revising of semantic information. For the purpose of gaining a cohesive understanding of situation models and the mechanisms involved in their formation, the present study aimed to investigate whether the RH hosts at least the temporal dimension of situation model representations. Thirty-four right-handed psychology students from Murdoch University participated in a computerised go-nogo lexical decision task (LDT) in which participant reaction time and error rates were documented. Temporal shifts in situation model representations were controlled for by presenting participants with short narrative passages that included short or long temporal adverbials or none at all during baseline/ neutral condition. Words and non-words were projected to the left visual field (LVF)/RH, the central visual field (CVF) and the right visual field/ left hemisphere (RVF/LH). Contrary to the hypotheses, the results did not demonstrate any temporal shifts for targets presented to the CVF or LVF/RH, as the degree of facilitation of targets between the short and long temporal references did not vary significantly. These findings are contrary to Zwaan’s (1996) strong iconicity assumption as well as previous behavioural research to suggest temporal updating. Nonetheless, compelling theoretical support lead to the continued maintenance of the claim that temporal awareness is inherent to the LVF/RH.
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Khuc, Vinh Ngoc. "Approaches to Automatically Constructing Polarity Lexicons for Sentiment Analysis on Social Networks". The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343187623.
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Eriksson, Ola. "Environmental and Economic Assessment of Swedish Municipal Solid Waste Management in a Systems Perspective". Doctoral thesis, KTH, Chemical Engineering and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3544.
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Waste management is something that affects most people. Thewaste amounts are still increasing, but the waste treatment ischanging towards recycling and integrated solutions. In Swedenproducersresponsibility for different products, a taxand bans on deposition of waste at landfills implicates areorganisation of the municipal solid waste management. Plansare made for new incineration plants, which leads to that wastecombustion comes to play a role in the reorganisation of theSwedish energy system as well. The energy system is supposed toadapt to governmental decisions on decommission of nuclearplants and decreased use of fossil fuels.
Waste from private households consists of hazardous waste,scrap waste, waste electronics and wastes that to a largeextent are generated in the kitchen. The latter type has beenstudied in this thesis, except for newsprint, glass- and metalpackages that by source separation havent ended up in thewaste bin. Besides the remaining amount of the above mentionedfractions, the waste consists of food waste, paper, cardboard-and plastic packages and inert material. About 80-90 % of thismixed household waste is combustible, and the major part ofthat is also possible to recycle.
Several systems analyses of municipalsolid waste managementhave been performed. Deposition at landfill has been comparedto energy recovery, recycling of material (plastic andcardboard) and recycling of nutrients (in food waste).Environmental impact, fuel consumption and costs are calculatedfor the entire lifecycle from the households, until the wasteis treated and the by-products have been taken care of.
To stop deposition at landfills is the most importantmeasure to take as to decrease the environmental impact fromlandfills, and instead use the waste as a resource, therebysubstituting production from virgin resources (avoidingresource extraction and emissions). The best alternative tolandfilling is incineration, but also material recycling andbiological treatment are possible.
Recycling of plastic has slightly less environmental impactand energy consumption than incineration. The difference issmall due to that plastic is such a small part of the totalwaste amount, and that just a small part of the collectedamount is recycled. Cardboard recycling is comparable toincineration; there are both advantages and disadvantages.Source separation of food waste may lead to higher transportemissions due to intensified collection, but severalenvironmental advantages are observed if the waste is digestedand the produced biogas substitutes diesel in busses.Composting has no environmental advantages compared toincineration, mainly due to lack of energy recovery. Therecycling options are more expensive than incineration. Theincreased cost must be seen in relation to the environmentalbenefits and decreased energy use. If the work with sourceseparation made by the households is included in the analysis,the welfare costs for source separation and recycling becomesnon-profitable. It is however doubted how much time is consumedand how it should be valuated in monetary terms.
In systems analyses, several impacts are not measured.Environmental impact has been studied, but not allenvironmental impact. As the parts of the system are underconstant change, the results are not true forever. Recyclingmay not be unambiguously advantageous today, but it can be inthe future.
Despite the fact that systems analysis has been developedduring 10 years in Sweden, there are still many decisions takenregarding waste management without support from systemsanalysis and use of computer models. The minority of users ispleased with the results achieved, but the systems analysis isfar from easy to use. The adaptation of tools and models to thedemands from the potential users should consider thatorganisations of different sizes have shifting demands andneeds.
The application areas for systems analysis and models arestrategic planning, decisions about larger investments andeducation in universities and within organisations. Systemsanalysis and models may be used in pre-planning procedures. Apotential is a more general application (Technology Assessment)in predominantly waste- and biofuel based energy processes, butalso for assessment of new technical components in a systemsperspective. The methodology and systems approach developedwithin the systems analysis has here been transformed to anassessment of environmental, economic and technical prestandaof technical systems in a broad sense.
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Weichart, Emily Ruth. "A dynamic conflict-based account of intra-trial decision-making". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu150003429232711.
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Prete, Ana Cristina Lo. "Transferência simultânea de lipídeos de um modelo artificial de lipoproteína (LDE) para a lipoproteína de alta densidade (HDL)". Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/9/9136/tde-23022015-145716/.
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Lipoproteínas do plasma trocam lipídeos e apolipoproteínas constantemente. Além da ação de proteínas de transferência, a habilidade das lipoproteínas em receber ou doar lipídeos depende também de diversos outros fatores. A estrutura e a composição de lipídeos e de proteína das lipoproteínas podem influenciar a fluidez da partícula e, desse modo, esta habilidade da lipoproteína. No plasma, a classe de lipoproteína que é a mais afetada pela transferência de lipídeos é a HDL. O presente estudo foi projetado para estabelecer um método . simples para quantificar a habilidade desta lipoproteína em receber simultaneamente suas principais classes de lipídeos constituintes, fosfolipídeo, colesterol livre, éster de colesterol e triglicerídeo. O método é baseado na troca lipídica ocorrida entre uma nanoemulsão artificial (LDE) que se assemelha à estrutura lipídica da LDL, usada como doador de lipídeos radioativos, e as lipoproteínas plasmáticas. Após precipitação da LDE e das demais lipoproteínas, a capacidade da HDL de receber lipídeos é quantificada pela medida da radioatividade presente na lipoproteína. No presente estudo, foi realizada a padronização deste método, assim como analisadas possíveis interferências no método. No mesmo estudo, foi analisada a transferência de lipídeos da LDE para a partícula de HDL em indivíduos controles. A elevação da temperatura (4 a 37°C), do tempo de incubação (5min a 2h) e de HDL-Colesterol (33 a 244 mg/dL) resultaram em progressivo aumento na transferência dos quatro lipídeos da LDE para a HDL. Por outro lado, o aumento do pH (6,5 a 8,5) e da concentração de albumina (3,50 a 7,00 g/dL) não alteraram os valores de transferência. A amostra de plasma mostrou ser inalterada para este ensaio por período de 12 meses (p>0,05), enquanto que a LDE foi inalterada por até 15 dias (p>0.2). Os resultados da análise intra-ensaio apresentaram imprecisão (C.V.) para · a transferência de fosfolipídeo, colesterol livre, éster de colesterol e triglicerídeo de 0,83, 0,56, 1,49 e 0,51 %, respectivamente. A análise inter-ensaio mostrou imprecisão para os resultados de transferência de fosfolipídeo, colesterol livre, éster de colesterol e triglicerídeo 0,78, 0,59, 1,32 e 0,58%, respectivamente. A média da transferência de fosfolipídeo, colesterol livre, éster de colesterol e triglicerídeo da LDE para a HDL nos 53 voluntários foi de 25,5±2,6, 9,9±1 ,6, 4,8±1,3 e 6,9±1 ,1%, respectivamente. As transferências de éster de colesterol, triglicerídeo e colesterol livre se correlacionaram positivamente entre estes lipídeos. Foram encontradas correlações positivas também entre as transferências de fosfolipídeo e de triglicerídeo e entre a transferência de colesterol livre e a concentração de colesterol de HDL. O método de transferência de lipídeos para a fração HDL mostrou ser prático e preciso, .podendo, dentro das condições ideais estabelecidas neste trabalho, determinar a capacidade receptora de lipídeos da HDL.Plasma lipoproteins constantly exchange lipids and apolipoproteins. Besides the action of transfer proteins, the ability of lipoproteins to receive or donate lipids also depends on several other factors. The structure, lipid and protein composition of the lipoproteins may influence the fluidity of the particle and thereby this ability of lipoprotein. In the plasma, the lipoprotein class that is the most affected by lipid transfers is HDL. The current study was designed to establish a practical method to quantify the ability of this lipoprotein to simultaneously receive its main constituent lipid classes, namely phospholipid, free cholesterol, cholesteryl ester and triglycerides. The method is based on the lipids exchange between an artificial nanoemulsion (LDE) that resembles the LDL, used as a donor of radioactive lipids, and plasma lipoproteins. After precipitation of the LDE and the others plasma lipoproteins, the accept capacity of the HDL\' is quantified by the measure of radioactivity in the lipoprotein. In the present study, the validation of this method was carried through. Moreover, possible interferences in the method had been analyzed. In the same study, the transfer of lipids of LDE for the particle of HDL from control subjets was analyzed. The rise of temperature (4 to 37°C), time of incubation (5min to 2h) and of HDL-Cholesterol (33 to 244 mg/dL) resulted in gradual increase in the transfer of the four lipids from LDE to HDL. On the other hand, the increase of pH (6.5 to 8.5) and albumin concentration (3.50 to 7.00 g/dL) had not modified the values of transfers. The plasma sample showed to be unchanged for this assay for period of 12 months (p>0.05), whereas the LDE was unchanged for 15-days (p>0.2). The intra-assay results showed imprecision (C.V) of 0.83, 0.56, 1.49 and 0.51 % for phospholipid, free cholesterol, cholesteryl ester and triglycerides transfer, respectively. The inter-assay showed imprecision for results of phospholipid, free cholesterol, cholesteryl ester and triglycerides transfer of 0.78, 0.59, 1.32 and 0.58%, respectively. The average of phospholipid, free cholesterol, cholesteryl ester and triglycerides transfers from LDE to HDL in the 53 volunteers was of 25.5±2.6, 9.9±1.6; 4.8±1 .3 and 6.9±1 .1 %, respectively. Cholesterol ester, triglyceride and free cholesterol transfers positively correlated among each other. A positive correlation was also found between phospholipid and triglyceride transfers and free cholesterol transfer and HDL cholesterol concentration. The method of lipids transfer to HDL showed to be practical and reproducible, being able, inside of the ideal conditions established in this work, to determine the aceptora capacity of lipids of the HDL.
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Luimula, Pauliina. "Regulation of the key molecules of glomerular ultrafiltration in proteinuric models". Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/laa/haart/vk/luimula/.
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Kristofer, Lennström, i Muangpetch Voraprat. "Effektivare livscykelanalyser med CoClass baserat på parametrisk modellering- Koppling mellan programvarorna Tekla Structure och GaBi". Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-68828.
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Bakgrund: Sveriges riksdag har lagstiftat ett långgående miljömål om att Sverige som nation ska vara klimatneutralt till år 2045. I Sverige står bygg- och fastighetsbranschen för ca 18 % av det totala nationella utsläppet av växthusgaser. Det växande behovet av byggande gör att det blir allt viktigare att ta hänsyn till ökande klimatpåverkan från byggnadsmaterialtillverkningen, byggandet och förvaltningen. Dokumentation av bygg- och anläggningsprojekts klimatpåverkan i form av Livscykelanalyser (LCA) börjar att efterfrågas av flera offentliga och privata beställare. Det är dock väldigt tids- och resurskrävande att utföra en LCA för ett projekt. Beräkning och planering av åtgärder för att minska klimatpåverkan, baserat på en LCA är inte ännu kopplat till tekniska projekteringen. Detta utgör ett hinder för att byggsektorn kan uppnå miljömålet om klimatneutralitet.Svenska byggföretag lagrar projektdata i olika IT-baserade produktions- och planeringssystem t.ex. kalkylsystem, digitala designprogram (CAD, Computer Aided Design), interna LCA-verktyg etc. Ett sätt för att effektivisera och göra mindre kostsamma LCA:er är att använda redan befintlig information i CAD-programvara. Den största offentliga beställaren på anläggningssidan Trafikverket ställer krav både på leverans av byggprojekthandlingar i ett digitalt format och rapportering av minskad klimatpåverkan i sina projekt. Idag saknas dock ett smidigt sätt att överföra projektinformation, t.ex. ingående byggnadsmaterial och dess mängder för konstruktionsdelar, från CAD-verktyg till LCA-programvara.Det nya byggklassifikationssystemet, CoClass erbjuder ett nytt sätt att strukturera digital projektinformation i CAD-verktygen. Det pågår en rad branschgemensamma initiativ för att utreda om användandet av CoClass kan förenkla överföring av projektinformationen från digitala modeller till LCA-programvaror.Syfte: Syftet med denna rapport var att ta fram en arbetsprocess för parametrisering av digitala modeller i enlighet med det nya CoClass-systemet och överföring av informationen på ett digitalt sätt till en LCA-programvara.Metod: Tillvägagångssättet baserades på flertalet semistrukturerade intervjuer. Intervjuerna inriktade sig mot konstruktörer och klimat/LCA-samordnare. I arbetet utfördes parametrisering av en digital modell för en betongbro i en CAD-programvara, Tekla och överföring av informationen till en LCA-programvara, Gabi.Slutsats: Resultatet från intervjuerna och testerna visar att det är tekniskt möjligt att använda CoClass för att parametrisera informationen i digitala modeller med avseende på LCA redan idag. Det har också konstaterats att det i nuläget saknas incitament för beställare, entreprenörer och konsulter att börja strukturera sina digitala modeller enligt CoClass- systemet. En ytterligare slutsats är att de ökade beställarkraven på minskandet av klimatpåverkan i bygg- och anläggningsprojekt skulle kunna bli en drivkraft för olika marknadsaktörer att gå över till CoClass-systemet. Implementering av CoClass- systemet i byggbranschen kommer skapa nya affärsmöjligheter med klimateffektiva konstruktioner och tekniska utföranden, vilket kommer stödja uppfyllandet av Sveriges mål om klimateffektivitet.Background: The Swedish Parliament has legislated a long-term environmental objective that Sweden as a nation should be climate neutral by 2045. In Sweden, the construction and real estate industry accounts for about 18% of the total national greenhouse gas emissions. The growing need for expanding construction makes it important to take into account the increasing climate impact of production of building materials, construction and maintenance. Documentation of the construction project's carbon footprint in terms of life cycle analysis (LCA) begins to be requested by several public and private clients. Creating an LCA-report today is a very time and resource consuming process. There is no connection between calculation and planning of climate impact, based on an LCA and the technical project planning which constitutes an obstacle to reach the climate targets.Swedish construction companies store project data in various IT-based production- and planning systems, eg. calculation systems, digital design programs (CAD, Computer Aided Design), internal LCA tools, etc. The Swedish Transport Administration (Trafikverket) sets demands on both delivery of construction documentation in a digital format and reports of reduced climate impact in their projects. But currently the procedure lacks an effective way to transfer project information, such as building materials and their amount of construction parts, from CAD tools to LCA software.The new building classification system, CoClass, offers a new way of organizing digital project information in CAD tools. Initiatives from the construction industry are underway to investigate whether the use of CoClass can simplify the transfer of project information from digital models to LCA software.Purpose: The purpose of this report is to develop a process of parameterization in digital models in accordance with the new CoClass system and investigating ways of transferring information in a digital way to an LCA software.Method: In this report, the approach has been several semi-structured interviews. The interviews ware targeting building constructor and climate/LCA coordinators. In the work based on information from the interviews a parametrization of a concrete bridge was performed in a CAD-software, Tekla and further the information was transferred to LCA software, GaBi.Conclusion. The results of the interviews and the test shows that it is technically possible to use CoClass to parameterize the information in digital models regarding to LCA, today. There is currently no incentive for clients, entrepreneurs and consultants to start structuring their digital models according to the CoClass system. But the increased demand requirements for reducing climate impact in construction projects can become a spur for different market participants to switch to the CoClass system. Implementation of the CoClass system in the construction industry will create new business opportunities with climate-efficient constructions and technical designs, which will support the fulfillment of Sweden's climate efficiency targets.
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Jurečková, Šárka. "Jak dlouho by musela jezdit stará škodovka, aby vyprodukovala tolik emisí, jako by vyprodukovala výroba jednoho nového ekologického auta?" Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-77776.
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This thesis covers primarily the detection of operating emission of an old Škoda Felicia car and the emission produced during the manufacturing of a new Toyota Prius, as the selected representative of an ecological car. The thesis also touches on hybrid technology in itself, the question of the greenness of hybrid cars, sphere of emission, but also related problems so called "scrapping" and its influence on environment and also current situation in automobile industry. The target of this study is calculation of operation time of an old Škoda Felicia during which the CO2 emission will reach the same amount of emission produced during manufacturing of a Toyota Prius. The objective is to point out incompetent and therefore not always serious comparison of cars greenness when only the operating CO2 is being compared. Other energy consumption and therefore also the greenhouse gases production is related with the car manufacturing, raw material extraction, petroleum processing and other economic sectors affected by production. Emission laboratory measurement executed by TÜV SÜD Czech discovered that the old Škoda produces 260m/km CO2 during its real running time. For the emission calculation was used an American model EIO-LCA created by Green Design Institute at Carnegie Mellon University that records ecological influence of car production, in stated amount, on all economy sectors. The outputs are quoted in CO2 equivalent. According to this model during manufacturing of 1 hybrid car 13.5 t of CO2e (equivalent CO2). is produced. Recalculation found out that the old Škoda Felicia could run for more than 5 years in order to produce as much emission as the manufacturing of new Toyota Prius third generation.
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Tonini, Gabriela Cristina. "Efeitos da imunização com lipoproteína de baixa densidade oxidada na aterosclerose experimental murina e no modelo de doença renal crônica". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/42/42133/tde-05102010-101603/.
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Anticorpos (Ac) anti-oxLDL estão envolvidos no desenvolvimento da lesão aterosclerótica. Induzimos a produção desses Ac através da imunização com oxLDL. Avaliamos os perfis lipídico e de Ac anti-oxLDL e anti-pepD (pepD é um peptídeo derivado da apoB). Animais apoE-/- possuem maiores níveis de lípides sorológicos em comparação com animais C57Bl/6, exceção da HDL. A imunização oxLDL não alterou este perfil. A imunização aumentou os títulos dos Ac IgM, IgG e IgG1 anti-oxLDL. Animais C57Bl/6, mas não os apoE-/- tiveram aumento dos Ac IgM anti-pepD após a imunização. Acreditamos que o aumento de anticorpos IgG1 deve-se ao adjuvante usado. A aterosclerose pode ocorrer com maior freqüência, em indivíduos portadores de doenças renais crônicas. Para estudar essa interferência submetemos os animais a um modelo de isquemia e reperfusão renal (I/R). A I/R promoveu aumento da concentração de TG, podendo agravar a aterosclerose. O aumento de Ac IgG anti-oxLDL promovidos pela I/R sugere que o processo inflamatório desencadeado por este procedimento, aumenta a oxidação de LDL. Desta forma, concluímos que a I/R pode ser considerado um procedimento pró-aterosclerótico que não pode ser revertido pela imunização com oxLDL.Oxidized LDL (oxLDL) antibodies (Ab) are involved in the development of the atherosclerotic lesion. We induced the formation of such Ab through immunization with oxLDL. We evaluate the lipids and antibody (anti-oxLDL and anti-pepD pep D is a peptide derived from apolipoprotein B) profile. The apoE-/- mice used have higher seric levels of most lipids than C57Bl/6 animals, the exception being HDL. The oxLDL immunization does not change this profile. The immunization increased anti-oxLDL Ab e IgM, IgG and IgG1 titers. Anti-pepD IgM Ab increased with immunization in C57Bl/6 animals only, and not in apoE-/-. We believe the increased IgG1 Ab due to the adjuvant used. Atherosclerosis has a higher incidence in individuals with chronic renal conditions. In order to study such interference, we submitted the animals to a renal ischemia and reperfusion model (I/R). The I/R procedure increased TG concentration, what can make atherosclerosis more severe. The increase in IgG anti-oxLDL antibody caused by I/R suggests that the inflammation process set by the procedure increases LDL oxidation. This way, we conclude that the I/R can be considered a pro-atherosclerotic procedure. The oxLDL immunization was not able to revert the atherogenic effect caused by I/R model.
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Horlacher, Gary T. "Contextual Relationship Model Across Four Cultures". Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd706.pdf.
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