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Qualidade da água do Canal São Gonçalo - RS/ Brasil: uma avaliação hidroquímica considerando seus usos múltiplos / Water quality of the São Gonçalo ChannelRS/Brazil: an hydrochemical evaluation considering its multiple usesSouza, Mariana Farias de 26 February 2015 (has links)
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Previous issue date: 2015-02-26 / Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul - FAPERGS / O Canal São Gonçalo está situado na Bacia Hidrográfica da Lagoa Mirim e faz a ligação entre a Laguna dos Patos e a Lagoa Mirim. É um manancial hídrico com significativa importância econômica e ambiental para a região sul do Brasil e suas águas são utilizadas para diversos fins, como abastecimento público, pesca, navegação e irrigação. O objetivo desse trabalho foi avaliar a qualidade físico-química e microbiológica do Canal São Gonçalo, considerando variações espaciais e pluviométricas. Foram realizadas duas campanhas de amostragem, em período de baixa e de alta pluviosidade. Foram coletadas amostras de água em 22 pontos ao longo do canal e determinados 24 parâmetros físico-químicos e microbiológicos, sendo eles: pH, condutividade elétrica, turbidez, oxigênio dissolvido, temperatura, salinidade, sólidos dissolvidos totais, fluoreto, potássio, cálcio, cloreto, nitrato, transparência, coliformes totais, coliformes termotolerantes, cor verdadeira, cor aparente, sulfato, fosfato, amônia, nitrito, ferro, zinco e cromo VI. Os resultados encontrados para cada parâmetro foram comparados com a classe 2 da Resolução CONAMA n° 357/2005. Foi realizada a análise estatística dos dados através da utilização da técnica de Análise de Componentes Principais como forma a determinar quais os principais parâmetros responsáveis pela qualidade da água do canal e identificar quais os tributários mais significativos com aporte de poluentes para o manancial em estudo. Foi verificado que a qualidade da água do Canal São Gonçalo varia tanto espacial quanto temporalmente. A variação espacial da qualidade da água demonstrou estar diretamente relacionada à condição de seus afluentes e verificou-se que muitos destes afluentes contribuem para degradação da qualidade da água do Canal São Gonçalo. Verificou-se que no período de baixa pluviosidade os parâmetros relacionados aos sólidos dissolvidos na água são os que mais contribuem para deterioração da qualidade da água. Já no período de alta pluviosidade há um aumento significativo na parcela de sólidos suspensos, relacionados a diversos outros parâmetros. Conclui-se que a qualidade da água do Canal São Gonçalo está em desacordo com seus atuais usos e que essa é uma situação que vem se agravando ao longo dos anos. Medidas de remediação devem ser tomadas para que os usos múltiplos do canal sejam garantidos. / The São Gonçalo Channel is localized at Mirim Lagoon Watershed and connects two lagoons in southern Brazil, the Mangueira Lagoon and Patos Lagoon. It has a significant importance to southern Brazil and the channel is used to several purposes, such as water supply, fishery, navigation and irrigation. The aim of this research was access the water quality of the São Gonçalo Channel. Water samples were collected in 22 sites in two different periods, in rainy season and in dry season. The water samples were analyzed for 24 different surface water parameters: pH, conductivity, turbidity, dissolved oxygen, temperature, salinity, total dissolved solids, fluoride, potassium, calcium, chloride, nitrate, transparency, total coliforms, fecal coliforms, true color, apparent color, sulfate, phosphate, ammonia, nitrite, iron, zinc and chromium VI. The results were compared with brazilian standards. The principal component analysis techniques also were applied for the results. The analysis showed that the water quality of the São Gonçalo Channel is different to each site and to each season. Different tributaries were identified that pollute the São Gonçalo Channel. The water quality parameters that are related with dissolved solids are the most significant in dry season. In rainy season there are increases in the parameters that are related with suspended solids. From this study it was concluded that the water quality of the São Gonçalo Channel is not according with current uses and the pollution is getting worse over the years. Remediation actions are necessary for maintained the multiple uses of the
channel.
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Relação dos principais padrões de oscilação do vento na baixa atmosfera e a temperatura mínima mensal no Rio Grande do SulPedra, George Ulguim, Pedra, George Ulguim 28 March 2011 (has links)
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Previous issue date: 2011-03-28 / Rio Grande do Sul (RS) has a large annual temperature range is
characterized by hot summers and cold winters, being strongly influenced by
weather systems in middle and high latitudes. Many studies suggest climate
change on Earth, particularly to the anomalous increase in temperature in
recent decades. The large thermal variations interfere directly in agricultural
production, trade and tourism, affecting the region's economy. The main
objective of this research was to identify the main patterns of wind speed at
850hPa layer. This layer is slightly above the surface outside of each boundary,
and thus with little influence of urban effects. Knowing the correlation of patterns
of wind speed with variations of monthly minimum temperatures throughout the
year in RS, identify and compare the adjustment functions of temporal trends
linear and nonlinear, and list the possible influence of large swings over the
Pacific Ocean these variations regional, especially during extreme. To study the
atmospheric oscillations were used in data grid point wind speed at 850hPa
over South America, which were applied the technique of spectral
decomposition defined principal components. We used monthly minimum
temperature data from 24 stations well distributed spatially in RS. The results
showed that the patterns of oscillations Main circulation in the lower atmosphere
over South America are strongly associated with variations of wind speed in
regions of the Polar Jet, Subtropical Jet and the trade winds in the Equatorial
Pacific. Core Standards of the wind speed did not correlate significantly with the
minimum temperatures in March, June, July and September. During other
months the correlation coefficients were significant, especially the months of
January, April, May and October. The northern state of RS presented highlight
this relationship, with the months of April and May the most significant. The trend of monthly minimum temperatures for the meteorological station of Irai
shown for all months of the year, the biggest adjustment function non-linear
time in comparison with the linear. The index of the Pacific Decadal Oscillation
function showed nonlinear fitting, revealing very similar function to the main
circulation patterns of the wind at 850hPa and adjustments of nonlinear
functions of minimum temperatures in Iraí (RS). Faced with the obvious
relations between the oscillations of the wind circulation at 850hPa with the
changes in the surface equatorial Pacific / North, we can expect that the trends
in minimum temperatures in RS for these next two decades suffer on average
more negative than oscillations positive, especially during summer and autumn,
although it indicates increased temperature in early spring. / O Rio Grande do Sul (RS) apresenta grande amplitude térmica anual
caracterizada por verões quentes e invernos frios, sendo influenciado fortemente por
sistemas atmosféricos de latitudes médias e elevadas. Muitas pesquisas apontam
alterações climáticas na Terra, especialmente no sentido de crescimento anômalo
da temperatura nestas últimas décadas. As grandes variações térmicas interferem
diretamente na produção agrícola, no comércio e no turismo, afetando a economia
da região. Os objetivos principais desta pesquisa foram: Identificar os principais
padrões de velocidade de vento na camada de 850hPa. Esta camada está
ligeiramente acima da superfície, fora da cada limite e, portanto, com pequena
influência dos efeitos urbanos; conhecer a correlação destes padrões de velocidade
do vento com variações das temperaturas mínimas mensais ao longo do ano no RS,
identificar e comparar as funções de ajuste de tendências temporais lineares e não
lineares e relacionar as possíveis influências das grandes oscilações oceânicas do
Pacífico sobre estas variações regionais, especialmente nos períodos extremos.
Para estudar as oscilações atmosféricas foram usados dados em ponto de grade da
velocidade do vento em 850hPa sobre a América do Sul, aos quais foram aplicadas
a técnica de decomposição espectral definida como Componentes Principais. Foram
utilizados dados de temperatura mínima mensal de 24 estações bem distribuídas
espacialmente no RS. Os principais resultados mostraram que os Padrões de
Oscilações Principais da circulação na baixa atmosfera sobre a América do Sul
estão fortemente associados às variações de velocidade do vento nas regiões do
Jato Polar, Jato Subtropical e os ventos Alísios no Pacífico Equatorial. Os Padrões
Principais da velocidade do vento não apresentaram correlações significativas com
as temperaturas mínimas nos meses de março, junho, julho e setembro. Nos demais
meses os coeficientes de correlação foram significativos, especialmente os meses
de janeiro, abril, maio e outubro. A região norte do Estado do RS apresentou destaque nesta relação, sendo os meses de abril e maio os mais significativos. A
tendência temporal das temperaturas mínimas mensais para a estação
meteorológica de Irai mostrou, para todos os meses do ano, maior ajuste para a
função temporal não linear na comparação com a linear. O índice de Oscilação
Decadal do Pacífico apresentou função de ajuste não linear, revelando ser bastante
semelhante aos principais padrões de circulação do vento em 850hPa e aos ajustes
das funções não lineares das temperaturas mínimas em Iraí (RS). Frente às
relações evidentes entre as oscilações da circulação do vento em 850hPa com as
oscilações na superfície do Oceano Pacífico Equatorial/Norte, pode-se esperar que
as tendências das temperaturas mínimas no RS para estas próximas duas décadas
sofram, em média, mais oscilações negativas do que positivas, principalmente nos
meses de verão e outono, apesar de indicar aumento de temperatura no começo de
primavera.
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Vilken betydelse har kosten för studieresultatet : På vilka sätt påverkar hälsovanorna betygetSäfbom, Anita January 2017 (has links)
Finns det någon substans i uttrycket ”du blir smartare av att äta fisk”, eller är det bara en myt? Syftet med studien är att undersöka om kosten, sömnen och fysisk aktivitet har någon betydelse för elevernas studieresultat, i form av betyg i grundskolans årskurs 8, samt om det finns skillnader kopplat till kön. Att belysa vad som är viktigt i kostens sammansättning, måltidsvanor och hur det påverkar kognitionen. Andra viktiga faktorer är fysisk aktivitet och sömn, för att uppnå goda studieresultat. Enkätmetod, tabeller, principalkomponentanalys och Pearssons korrelationskoefficient har använts. Tendensen är att ju bättre hälsovanor desto bättre betyg. Förhoppningsvis kommer denna studie att bidra till att vidga kunskaperna kring sambandet mellan goda hälsovanor (med ingående komponenter kost, sömn och fysisk aktivitet) respektive ohälsosamma hälsovanor och studieresultat inom Hem- och konsumentkunskap. Vänligen skriv ut arbetet i färg, det ökar förståelsen. / Is there any substance in the phrase "you get smarter of eating fish" or is it just a myth? The purpose of the study is to investigate whether diet, sleep and physical activity have any significance for students' study results, in terms of grades in compulsory school grade eight, and if there are differences related to gender. To highlight what is important in the composition of the diet, eating habits and how it affects cognition. Other important factors are physical activity and sleep, to achieve good study results. Survey methods, tables, principal component analysis and Pearsson correlation coefficient have been used. The tendency is that the better the health habits, the better the grade. Hopefully, this study will help to broaden the knowledge of the link between healthy lifestyle (including components of diet, sleep and physical activity) and unhealthy health habits and study results in Home- and consumer knowledge.Please print the work in color, it increases understanding.
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RELAÇÃO SOLO-FITOSSOCIOLOGIA EM UM REMANESCENTE DE FLORESTA ESTACIONAL DECIDUAL / RELATION SOIL-PHYTOSOCIOLOGY IN A REMAINDER OF ESTACIONAL FOREST DECIDUALAlmeida, Clarice Maboni de 30 July 2010 (has links)
The study aimed at evaluating tree and shrub vegetation concerning the slope of the soil in Seasonal Deciduous Forest. The vegetation assessment was conducted in 14 plots
systematically distributed in the forest and divided into subplots of 10 x 10 m, in which individuals with circumference 1.3 m of soil (CAP) ≥ 30 cm were observed. These individuals represented class I while individuals with a CAP ≥ 15 < 30 cm represented class II. Vegetation
was analyzed by means of the TWINSPAN (Two-way Indicator Species Analysis) method to classify groups, within which the horizontal structure of the forest was studied. In 36 subplots, morphological description of the soil profile was carried out, samples were collected for chemical analysis and clay was determined at three depths (0-10, 10-20 and 20-30 cm), as well as slope, which was classified as low slope (1 ≥ 15), medium slope (15 ≥ 35) and high slope (≥35). The relationship between clusters of vegetation, slope and soil characteristics was studied
by means of Principal Component Analysis (PCA). In G1, indicator species were Trichilia claussenii, Cupania vernalis and Crysophyllum marginatum and, in G2, Luehea divaricata and Sebastiania commersoniana. In terms of horizontal structure, these species were among the
three best represented ones. Both clusters occurred in areas of variable slope, however, G2 took place in an environment which was more susceptible to interference in the vegetation. From PCA, it could be observed that soil characteristics and slope explained 26% of the total
variability, and, out of these, 72% was explained in the main component 1, showing a strong correlation between soil characteristics and the presence of phytosociological groups in different slopes. This relationship is stronger for the presence of the two groups in the ranges of
medium and high slope, on the other hand, in terms of low slope, the two groups showed no positive correlation with soil characteristics. For G1 in high slope and G2 in medium and high slope, correlation is positive concerning the whole characteristics of cationic exchange. However, G1 in medium slope was strongly correlated to the complex of exchangeable acidity. G2 at higher slopes also shows high correlation with clay, the finer texture may confer a greater degree of aggregation and reactivity, allowing the development of large species such as Luehea divaricata and Cordia americana. In general, due to restrictions of soil and slope, maintaining of the remnants is prior, aiming at important environmental services for the region. / O estudo objetivou avaliar a vegetação arbórea e arbustiva em relação à formação de agrupamentos, declividade do terreno e influência do solo nos agrupamentos em Floresta
Estacional Decidual. A avaliação da vegetação foi realizada em 14 parcelas distribuídas sistematicamente na floresta e divididas em subparcelas de 10 x 10 m, onde foram observados
os indivíduos com CAP (circunferência a 1,3 m do solo) ≥ 30 cm, os quais representaram a classe I, e indivíduos com 15 ≤ CAP < 30 cm, representando a classe II. Na análise da
vegetação utilizou-se o método TWINSPAN (Two-way Indicator Species Analysis) para classificação de grupos, dentro dos quais foi estudada a estrutura horizontal da floresta. Em 36 subparcelas foi realizada a descrição morfológica do perfil do solo, coletada amostra para
análise química e determinação de argila em três profundidades (0-10, 10-20 e 20-30 cm), além da declividade, que foi classificada em baixa (1 ≥ 15º), média (15 ≥ 35º) e alta (≥ 35º). A relação com os grupos e características do solo foi estudada por meio de Análise de Componente Principal (PCA). No G1 as espécies indicadoras foram Trichilia claussenii,
Cupania vernalis e Crysophyllum marginatum e no grupo G2 Luehea divaricata e Sebastiania commersoniania. Na estrutura horizontal essas espécies estiveram entre as três melhores
representadas. Ambos os agrupamentos ocorreram em áreas com variáveis declividades, entretanto, o G2 ocorreu em ambiente mais susceptível às interferências na vegetação. A
partir do PCA observou-se que as características do solo e declividade explicaram 26% da variabilidade total, sendo que desses 72% foi explicado no componente principal 1,
demonstrando forte correlação entre as características dos solos e a presença dos grupos fitossociológicos em diferentes declividades. Essa relação foi mais expressiva para a presença
dos dois grupos nos intervalos de média e alta declividade, por outro lado, em declividade baixa os dois grupos não apresentaram correlação positiva com as características do solo. Para G1 em alta e G2 em média e alta declividade, a correlação é positiva em relação ao conjunto de características de troca catiônica. Entretanto, o G1 em declividade média teve forte correlação com o complexo de acidez trocável. O G2 em maior declividade também apresenta
alta correlação com a argila, essa textura mais fina talvez confira um maior poder de agregação e reatividade, permitindo o desenvolvimento de espécies de grande porte como
Luehea divaricata e Cordia americana. De forma geral, devido às restrições de solo e declividade, a manutenção do remanescente é prioritária visando importantes serviços
ambientais à região.
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MRI of intracranial tumours in adults:oedema-attenuated inversion recovery MR sequence in low-field MRI, diffusion-weighted MRI and BOLD fMRIKokkonen, S.-M. (Salla-Maarit) 03 November 2009 (has links)
Abstract
The goal of this study was to explore preoperative evaluation of patients with intracranial tumours using magnetic resonance imaging (MRI) methods: oedema-attenuated inversion recovery (EDAIR) sequence in low-field MRI, and diffusion-weighted imaging (DWI) and resting-state functional MRI (fMRI) in high-field MRI. The aim was also to increase our knowledge about the effects of brain surgery on eloquent brain cortices using new MRI techniques. The total number of patients in these studies was 50 (24 women).
Enhancement of the tumour in ten patients after intravenous administration of gadolinium-based contrast agent in low-field MRI was examined with a new sequence, EDAIR, and compared with more conventionally used partial saturation spin echo sequences. EDAIR may facilitate the perception of small enhancing lesions and is valuable in low-field imaging, where T1-based contrast is inferior to high-field imaging.
DWI was performed on 25 patients in order to evaluate the potential of this imaging method to assist in differential diagnosis of intracranial tumours. It was shown that apparent diffusion coefficient values of the tumour and peritumoural oedema produced by DWI were different in benign and malignant tumours.
Resting-state blood oxygen level-dependent (BOLD) fMRI was performed on eight patients and ten healthy volunteers to examine if functional sensorimotor areas in the brain could be determined without any task-related activations. It was shown that intracranial tumours do not appear to hamper visualization of the sensorimotor area in resting-state BOLD fMRI when independent component analysis is performed, and this method may be used in preoperative imaging when activation studies cannot be performed.
Conventional BOLD fMRI with motor and auditory stimuli was used with seven patients as the effect of brain surgery was studied. The results suggest that resection of a tumour with preoperative oedema probably decreases pressure on the brain and makes the functional cortex transiently more easily detectable in BOLD fMRI.
In conclusion, the MRI imaging methods used in this study can give valuable additional information about the tumour, specifically for preoperative imaging and planning for surgery.
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Heart Rate Variability Extraction from Video SignalsAlghoul, Karim January 2015 (has links)
Heart Rate Variability (HRV) analysis has been garnering attention from researchers due to its wide range of applications. Medical researchers have always been interested in Heart Rate (HR) and HRV analysis, but nowadays, investigators from variety of other fields are also probing the subject. For instance, variation in HR and HRV is connected to emotional arousal. Therefore, knowledge from the fields of affective computing and psychology, can be employed to devise machines that understand the emotional states of humans. Recent advancements in non-contact HR and HRV measurement techniques will likely further boost interest in emotional estimation through . Such measurement methods involve the extraction of the photoplethysmography (PPG) signal from the human's face through a camera. The latest approaches apply Independent Component Analysis (ICA) on the color channels of video recordings to extract a PPG signal. Other investigated methods rely on Eulerian Video Magnification (EVM) to detect subtle changes in skin color associated with PPG.
The effectiveness of the EVM in HR estimation has well been established. However, to the best of our knowledge, EVM has not been successfully employed to extract HRV feature from a video of a human face. In contrast, ICA based methods have been successfully used for HRV analysis. As we demonstrate in this thesis, these two approaches for HRV feature extraction are highly sensitive to noise. Hence, when we evaluated them in indoor settings, we obtained mean absolute error in the range of 0.012 and 28.4.
Therefore, in this thesis, we present two approaches to minimize the error rate when estimating physiological measurements from recorded facial videos using a standard camera. In our first approach which is based on the EVM method, we succeeded in extracting HRV measurements but we could not get rid of high frequency noise, which resulted in a high error percentage for the result of the High frequency (HF) component. Our second proposed approach solved this issue by applying ICA on the red, green and blue (RGB) colors channels and we were able to achieve lower error rates and less noisy signal as compared to previous related works. This was done by using a Buterworth filter with the subject's specific HR range as its Cut-Off.
The methods were tested with 12 subjects from the DISCOVER lab at the University of Ottawa, using artificial lights as the only source of illumination. This made it a challenge for us because artificial light produces HF signals which can interfere with the PPG signal. The final results show that our proposed ICA based method has a mean absolute error (MAE) of 0.006, 0.005, 0.34, 0.57 and 0.419 for the mean HR, mean RR, LF, HF and LF/HF respectively. This approach also shows that these physiological parameters are highly correlated with the results taken from the electrocardiography (ECG).
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Behavioural Studies and Computational Models Exploring Visual Properties that Lead to the First Floral Contact by BumblebeesOrbán, Levente L. January 2014 (has links)
This dissertation explored the way in which bumblebees' visual system helps them discover their first flower. Previous studies found bees have unlearned preferences for parts of a flower, such as its colour and shape. The first study pitted two variables against each other: pattern type: sunburst or bull's eye, versus the location of the pattern: shapes appeared peripherally or centrally. We observed free-flying bees in a flight cage using Radio-Frequency Identification (RFID) tracking. The results show two distinct behavioural preferences: Pattern type predicts landing: bees prefer radial over concentric patterns, regardless of whether the radial pattern is on the perimeter or near the centre of the flower. Pattern location predicts exploration: bees were more likely to explore the inside of artificial flowers if the shapes were displayed near the centre of the flower, regardless of whether the pattern was radial or concentric. As part of the second component, we implemented a mathematical model aimed at explaining how bees come to prefer radial patterns, leafy backgrounds and symmetry. The model was based on unsupervised neural networks used to describe cognitive mechanisms. The results captured with the results of multiple behavioural experiments. The model suggests that bees choose computationally "cheaper" stimuli, those that contain less information. The third study tested the computational load hypothesis generated by the artificial neural networks. Visual properties of symmetry, and spatial frequency were tested. Studying free-flying bees in a flight cage using motion-sensitive video recordings, we found that bees preferred 4-axis symmetrical patterns in both low and high frequency displays.
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Principal component analysis in Finance / Analýza klíčových komponent ve financíchFučík, Vojtěch January 2015 (has links)
The main objective of this thesis is to summarize and possibly interconnect the existing methodology on principal components analysis, hierarchical clustering and topological organization in the financial and economic networks, linear regression and GARCH modeling. In the thesis the clustering ability of PCA is compared with the more conventional approaches on a set of world stock market indices returns in different time periods where the time division is represented by The World Financial Crisis of 2007-2009. It is also observed whether the clustering of DJIA index components is underlied by the industry sector to which the individual stocks belong. Joining together PCA with classical linear regression creates principal components regression which is further in the thesis applied to the German DAX 30 index logarithmic returns forecasting using various macroeconomic and financial predictors. The correlation between two energy stocks returns - Chevron and ExxonMobil is forecasted using orthogonal (or PCA) GARCH. The constructed forecast is then compared with the predictions constructed by the conventional multivariate volatility models - EWMA and DCC GARCH.
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Analýza úmrtnostních tabulek pomocí vybraných vícerozměrných statistických metod / Life tables analysis using selected multivariate statistical methodsBršlíková, Jana January 2015 (has links)
The mortality is historically one of the most important demographic indicator and definitely reflects the maturity of each country. The objective of this diploma thesis is the comparison of mortality rates in analyzed countries around the world over time and among each other using the principle component analysis that allows assessing data different way. The big advantage of this method is minimal loss of information and quite understandable interpretation of mortality in each country. This thesis offers several interesting graphical outputs, that for example confirm higher mortality rate in Eastern European countries compared to Western European countries and show that Czech republic is country where mortality has fallen most in context of post-communist countries between 1990 and 2010. Source of the data is Human Mortality Database and all data were processed in statistical tool SPSS.
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On-shaft vibration measurement using a MEMS accelerometer for faults diagnosis in rotating machinesElnady, Maged Elsaid January 2013 (has links)
The healthy condition of a rotating machine leads to safe and cheap operation of almost all industrial facilities and mechanical systems. To achieve such a goal, vibration-based condition monitoring has proved to be a well-accepted technique that detects incipient fault symptoms. The conventional way of On-Bearing Vibration Measurement (OBVM) captures symptoms of different faults, however, it requires a relatively expensive setup, an additional space for the auxiliary devices and cabling in addition to an experienced analyst. On-Shaft Vibration Measurement (OSVM) is an emerging method proposed to offer more reliable Faults Diagnosis (FD) tools with less number of sensors, minimal processing time and lower system and maintenance costs. The advancement in sensor and wireless communications technologies enables attaching a MEMS accelerometer with a miniaturised wireless data acquisition unit directly to the rotor without altering the machine dynamics. In this study, OSVM is analysed during constant speed and run-up operations of a test rig. The observations showed response modulation, hence, a Finite Element (FE) analysis has been carried out to help interpret the experimental observations. The FE analysis confirmed that the modulation is due to the rotary motion of the on-shaft sensor. A demodulation method has been developed to solve this problem. The FD capability of OSVM has been compared to that of OBVM using conventional analysis where the former provided more efficient diagnosis with less number of sensors. To incorporate more features, a method has been developed to diagnose faults based on Principal Component Analysis and Nearest Neighbour classifier. Furthermore, the method is enhanced using Linear Discriminant Analysis to do the diagnosis without the need for a classifier. Another faults diagnosis method has been developed that ensures the generalisation of extracted faults features from OSVM data of a specific machine to similar machines mounted on different foundations.
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