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Girardi, Lorenzo. "Lo zafferano: parametri qualitativi, possibili adulterazioni e tecniche innovative di essiccazione." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
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Nella trattazione che segue viene esposta una panoramica sulla gestione della qualità dello zafferano, focalizzandosi sull’individuazione dei parametri di qualità del prodotto preso in esame, sulle procedure analitiche necessarie alla categorizzazione merceologica e qualitativa e sulle tecniche innovative di disidratazione sviluppate negli ultimi anni.
In primo luogo, viene descritta la pianta da cui viene selezionata la materia prima di cui è composto lo zafferano: il Crocus sativus; ne viene quindi analizzata la morfologia, la fenologia e la tecnica colturale, esponendo quelle che sono le fasi salienti del processo di coltivazione, lavorazione e trasformazione di questo prodotto. Viene poi illustrata la distribuzione geografica dei produttori mondiali di zafferano, riportando dati relativi alle produzioni nazionali ed internazionali.
Vengono quindi riportate le procedure analitiche standard, contenute nella norma ISO 3632 del 2010 in riferimento alla classificazione merceologica dello zafferano; poi, vengono introdotte le procedure analitiche finalizzate alla rilevazione delle frodi che più soventemente interessano questa preziosa spezia, proponendo tecniche analitiche standard ed alcuni approcci analitici rapidi innovativi.
Infine, sono descritte alcune delle tecniche innovative di disidratazione degli stimmi di C. sativus, volte a migliorarne il profilo organolettico, la concentrazione di molecole bioattive e la reologia. Vengono quindi analizzati gli aspetti funzionali e gestionali di queste tecnologie, confrontando i risultati ottenuti nelle sperimentazioni che le descrivono con le performance prodotte dalle tecniche di essiccazione convenzionali.
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Moradi, Luca. "Salume arricchito in acidi grassi polinsaturi omega-3: controllo di parametri chimici qualitativi e compositivi in relazione ad un possibile incremento di ossidabilita’ della frazione lipidica durante la shelf-life." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/4978/.
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Questa relazione finale è incentrata sul lavoro sperimentale richiesto dalla collaborazione con l’azienda Natural Salumi ed ha come obiettivo principale quello di verifica dei parametri qualitativi e compositivi di una nuova tipologia di salume in fase di studio. L’azienda ha infatti messo a punto un nuovo “prodotto funzionale” addizionando componenti aventi attività nutraceutica al salame ottenuto da sole parti magre di suino (tipo NaturalFetta) e si propone di arricchire il proprio prodotto con acidi grassi polinsaturi della serie omega-3 (da olio di semi di lino), noti per gli effetti benefici esercitati sulla salute umana.
Sul prodotto di nuova formulazione si effettueranno sia la determinazione della percentuale lipidica mediante metodo ufficiale Soxhlet ed automatizzato Soxtec, al fine di individuare il quantitativo totale della parte grassa, che una caratterizzazione del profilo quali-quantitativo in acidi grassi, fondamentale per verificare la conformità con i requisiti indicati dal Reg. 1924/06 (e successivi come il Reg. UE 432/2012) previsti per le indicazioni da inserire in etichetta (claims) per i prodotti arricchiti con acidi grassi polinsaturi (PUFA). La determinazione del profilo in acidi grassi e, nello specifico, del contenuto in acido -linolenico, sarà realizzata mediante gascromatografia previa estrazione della frazione lipidica dei salumi con metodo di Folch modificato, che prevede un'estrazione solido-liquido.
La concentrazione di acido alfa-linolenico sarà inoltre monitorata durante tutto il periodo di shelf-life del prodotto (45 gg) al fine di valutare eventuali variazioni durante la conservazione. Per soddisfare quest’ultima finalità, le analisi saranno eseguite sia all’inizio (T0) che alla fine (T1) della vita commerciale del prodotto.
Le stesse analisi verranno inoltre condotte sia sul prodotto a formulazione classica che su un prodotto del tutto simile, commercializzato da un’altra azienda e considerato come leader di mercato.
In relazione ad un possibile aumento di ossidabilità della frazione lipidica, sarà realizzato un controllo dei parametri chimici, qualitativi e compositivi, con particolare riferimento ai prodotti di ossidazione del colesterolo (date le loro implicazioni in ambito biomedico). La maggiore presenza in formulazione di acidi grassi polinsaturi potrebbe infatti favorire un incremento dei COPs (Cholesterol Oxidation Products), che saranno separati, identificati e quantificati mediante la procedura SPE/GC-MS (estrazione e purificazione in fase solida accoppiata ad analisi gascromatografica con rivelazione mediante spettrometria di massa).
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George, Raiju Michael, and Saseendran Shyamkumar Palayil. "Qualitative and quantitative study of existing surface parameters and their correlation to CWS parameters in Automobile Industry : Surface texture parametric study of CWS." Thesis, Högskolan i Halmstad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37970.
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Surface roughness is an important parameter in the automotive Industry. This thesis is a study conducted in collaboration with QSO Interferometer systems AB (QSAB), Halmstad. The study is focused on the existing surface roughness parameters used in the automotive industry and the relationship to the CWS parameters of QISAB. The study also investigates the scope of CWS instrument developed by QISAB as a next-generation automated surface testing inline instrument. The initial study which has been conducted had 5 stages, those are the history of roughness measurement, the basic CWS parameters, the currently used surface testing instruments in the automobile industry, the use of surface metrology in the manufacturing industry and the basic principle and theory of the CWS. As the final stage to achieve the aim of the thesis a quantitative study has been conducted to compare the existing parameters with CWS parameters. The three type of comparison were done on a test piece having different range of surface roughness after different stages of grinding. These three comparisons that had been done were CWS v/s White light interferometer v/s visual inspection. The results from those quantitative analysis did support the results from the qualitative analysis.
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Al-Ballaa, Hind Rasheed. "Diagnosis via Qualitative parameter estimation." Thesis, University of Aberdeen, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493495.
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This thesis presents an approach for qualitative model based fault diagnosis via parameter estimation. Estimating parameters qualitatively in this research is based on the relationships among involved qualitative quantities. To maintain the consistency of ordinal relationships an inequality reasoner is developed. Existing inequality reasoners (or commonly in the AI community referred to as quantity lattices) infer relationships between quantities involved in a system (qualitative or quantitative) based on the real values associated with them. The novel feature of our inequality reasoner is that it infers and maintains relationships among pure qualitative quantities. Inferring ordinal relationships between sign based quantities removes the traditional drawback of qualitative domain, the lack of discriminating power.
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Vinkler, Lukáš. "Podpora služeb reálného času v současných mobilních sítích třetí generace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218101.
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This Master’s thesis is focused on the recent 3G mobile networks. The first chapter describes an evolution of standardization 3G and surveys a gradual development of 3G networks in Czech Republic from a point of view of commercially launched technologies and assigned frequency spectrums for single mobile operators. UMTS and CDMA 2000 are briefly approached in next subchapters. The subchapter CDMA 2000 is briefly concentrated on architecture and a physical layer of this technology and characterizes main features of four revises of developmental branch CDMA 2000 1x EV-DO. The subchapter UMTS is especially focused on a comparison of air interfaces TD-CDMA and W-CDMA. New features were implemented to the recent system UMTS for a better support of real-time services. These features increasing a throughput and decreasing a delay are described in a chapter Technology HSPA. This chapter chooses the most important features and describes changes (in a control and architecture) which had to be implemented. First chapter is finished by technology WiMAX. The most recent perspective cell systems are compared with WiMAX in this subchapter and qualitative parameters of WiMAX are shown there. The three different 3G technologies (UMTS-FDD, UMTS-TDD and CDMA 2000) are lunched in Czech Republic. The second chapter briefly compares coverage of three czech mobile operators (Telefónica O2, T-Mobile and U:fon) and then presents results of qualitative parameters of used 3G technologies. The simulation conducted by software IxChariot were focused on to gauge parameters like throughput, delay, jitter, lost data, MLR and DF. The conditions for providing real-time services were specified based on simulations that were practically checked. The lab composed in last chapter should bring closer to students technology UMTS-TDD launched by T-Mobile. The students will measure the qualitative parameters of this technology with the assistance of commonly available tools.
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CORNEJO, GIANN CARLO. "FEEDBACK CONTROL DESIGN USING TEMPLATE BOUNDARIES FOUND THROUGH A PRUNING ALGORITHM FOR PLANTS WITH PARAMETRIC UNCERTAINTY." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069447568.
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Steele, Andrew D. "Time constrained qualitative model-based parameter identification." Thesis, Heriot-Watt University, 1996. http://hdl.handle.net/10399/735.
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Sousa, Dayanne Lima de. "UtilizaÃÃo da ultrassonografia e qualidade da carne de cordeiros Santa InÃs de diferentes classes sexuais submetidos à restriÃÃo alimentar." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13881.
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FundaÃÃo de Amparo à Pesquisa do Estado do CearÃObjetivou-se com o presente estudo avaliar a utilizaÃÃo da ultrassonografia e qualidade de carne de cordeiros Santa InÃs de diferentes classes sexuais submetidos à restriÃÃo alimentar. Foram utilizados 30 cordeiros, 15 castrados e 15 nÃo castrados, com aproximadamente dois meses de idade e peso corporal inicial mÃdio de 13,00  1,49 kg. Os cordeiros foram distribuÃdos em delineamento inteiramente casualizado em arranjo fatorial 3x2 (nÃvel de restriÃÃo x classe sexual), de acordo com a quantidade de alimento fornecida. A duraÃÃo do experimento foi determinada pelo tempo necessÃrio para que a mÃdia de peso corporal dos animais de um dos tratamentos atingisse 28 kg, ocasiÃo em que todos os 30 animais foram abatidos. NÃo houve interaÃÃo significativa entre os nÃveis de restriÃÃo e a classe sexual para Ãrea de olho de lombo (AOL), espessura de gordura subcutÃnea (EGS), profundidade do Longissimus dorsi na lombar (PLDL) e espessura de gordura subcutÃnea na lombar (EGSL) no momento do abate. Possivelmente, devido à reduÃÃo na oferta do alimento, a AOL, a EGS, a PLDL e a EGSL apresentaram valores mÃdios reduzidos em funÃÃo do aumento no nÃvel de restriÃÃo alimentar. Houve interaÃÃo entre os nÃveis de restriÃÃo alimentar e as datas de mensuraÃÃo para AOL, EGS, PLDL e EGSL. Foram observadas correlaÃÃes significativas entre as caracterÃsticas in vivo e as caracterÃsticas de carcaÃa. A AOL por ultrassonografia in vivo foi altamente correlacionada com a medida desta variÃvel na carcaÃa, demonstrando a eficiÃncia do mÃtodo. Houve interaÃÃo entre os nÃveis de restriÃÃo alimentar e as classes sexuais para as variÃveis intensidade de amarelo e pH no mÃsculo Longissimus lumborum e para forÃa de cisalhamento no mÃsculo Semimembranosus. Para os animais nÃo castrados, a intensidade de amarelo foi maior para o nÃvel de 30% de restriÃÃo no mÃsculo Longissimus lumborum. NÃo houve interaÃÃo significativa entre os nÃveis de restriÃÃo e a classe sexual para os aspectos de qualidade relacionados à saturaÃÃo de cor, tonalidade da cor, luminosidade, intensidade de vermelho, capacidade de retenÃÃo de Ãgua e perda de peso por cocÃÃo para os mÃsculos Longissimus lumborum e Semimembranosus. Cordeiros Santa InÃs submetidos à restriÃÃo alimentar apresentam menores valores para AOL, EGS, PLDL e EGSL, sendo estas avaliadas in vivo. Embora a restriÃÃo alimentar e a classe sexual tenham influenciado as variÃveis relacionadas à qualidade da carne dos animais avaliados, os valores mÃdios observados sÃo considerados aceitÃveis pela literatura. Os nÃveis de restriÃÃo alimentar e a classe sexual influenciaram algumas caracterÃsticas importantes da qualidade da carne de cordeiros Santa InÃs.
The objective of the present study to evaluate the use of ultrasound and quality lamb meat Santa InÃs of different sex class subjected to food restriction. Were used thirty Santa InÃs lambs, 15 castrated and 15 nonâcastrated, with approximately two months of age and initial body weight in average of 13 Â 1.49 kg. The lambs were assigned to a completely randomized design in a 3x2 factorial arrangement (levels of feed restriction x sex class), according to the amount of food provided. Experiment period was determined based in the time required for the animals one of the groups achieved 28 kg of body weight in average, when all 30 animals were slaughtered. There was no significant interaction between restriction levels and sexual class to rib eye area (REA), subcutaneous fat thickness (SFT), depth of Longissimus dorsi in the lumbar (DLDL) and thickness of subcutaneous fat in the lumbar (TSFL) at slaughter. Possibly due reduction in food supply, the REA, the SFT, the DLDL and The TSFL showed average values reduced in function increase levels of feed restriction. There was interaction between levels of feed restriction and the measurement dates to REA, SFT, DLDL and TSFL. Significant correlations were observed between the in vivo characteristics and carcass characteristics. The REA by ultrasound in vivo was highly correlated with the measure of this variable in the carcass, demonstrating its efficacy. There was interaction between levels of feed restriction and sex classs for the variables intensity of yellow and pH in Longissimus lumborum and shear force in Semimembranosus muscle. To animals non-castrated, the intensity of yellow was higher with 30% restriction on the Longissimus lumborum. There was no significant interaction between restriction levels and sexual class to quality aspects related to color saturation, color tone, luminosity, red intensity, water retention capacity and weight loss for cooking for Longissimus lumborum and Semimembranosus muscles. Santa Ines lambs subjected to food restriction have lower values for REA, SFT, DLDL and TSFL, which are valued in vivo. Although feed restriction and sexual class have influenced the variables related to the meat quality of animals evaluated, the mean values observed are considered acceptable in the literature. The food restriction levels and sexual class influenced some important features of meat quality Santa Ines lamb.
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Agra, Carlos Martins. ""Avaliação quantitativa e qualitativa de duas cerâmicas frente a diferentes tratamentos de superfície"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-03102005-101433/.
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A característica de superfície representa um fator importante na previsibilidade do comportamento dos materiais cerâmicos quanto ao desgaste. A rugosidade superficial de duas cerâmicas (Duceram Plus e Duceragold) foi avaliada através de dois métodos - análise quantitativa e qualitativa - após diferentes tratamentos. Foram confeccionados 36 corpos de prova de prova para a análise ao rugosímetro, e 24 corpos de prova para a análise ao MEV. Os resultados destas análises demonstraram o comportamento distinto entre os diferentes tratamentos. A análise com o rugosímetro demonstrou que a ação dos polidores EDENTA foi a mais efetiva para devolver lisura à superfície após a realização de desgaste com instrumento abrasivo diamantado rotatório. Todas as técnicas de polimento acarretaram em valores de rugosidade menores que os observados nos espécimes que foram submetidos apenas os glaze. Entre as cerâmicas avaliadas, a Duceragold apresentou valores médios de rugosidade inferiores aos observados na porcelana Duceram Plus na maioria dos tratamentos pesquisados. Pela análise ao MEV não foi possível distinguir diferenças entre as cerâmicas ou entre os corpos de prova polidos ou submetidos apenas ao glaze.The surface characteristic of ceramic material is an important factor to predict its wear behavior. The surface roughness of two ceramics (Duceram Plus e Duceragold) was evaluated trough qualitative and quantitative methods after different treatments. 36 specimens were fabricated for the analysis utilizing a surface profiling instrument, and 24 for the SEM analysis. The results determined different behavior between the two ceramics evaluated due the treatment executed. The analysis utilizing a surface profiling instrument showed that the treatment using the EDENTA polishers was the most effective technique to provide the smoothest surface after trimming. All polishing techniques resulted in better surface properties when compared to the treatment glaze. The Duceragold ceramic presented lower roughness values in most treatments executed when compared to Duceram Plus. The perception trough the SEM analysis of significant differences between treatments or between the two ceramics was not achievable.
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GUIMARÃES, João Filipi Rodrigues. "Desenvolvimento de genótipos de arroz vermelho para sistema de cultivo de terras altas." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6428.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
In Brazil predominates the consumption of white-rice. However, recently the high demand for special types of rice by the population is increasing the necessity of supplying this new market segment with breeds that have its own characteristics which are different from the common white-rice. Thus, the red-rice is one of this special breed and for its farming are usually employed seeds landraces that have high number of tillers, elevated height and lodging susceptibility. Such characteristics work like barriers that the plant breeder has to overcome in order to sustain the development of the red-rice agriculture. The objectives of this study were to obtain rice with red seed-vessel by the backcross method and estimates the genetics parameters of the population (F2) generated by the crossing of the IAC 25 cultivar and red-rice from qualitative descriptors utilised in the rice farming. The plants were grown in plastic containers in greenhouse and the pollination was natural by the dehiscence of the anthers and pollen clearance. F1 plants population were acquired from the crossing of IAC-25 and the red-rice plants that were utilised as male genitors to obtain the RC1, being the female genitor at this point and through the rest of the experiment the IAC-25. For the conduction of the experiment and the parameters estimation was adopted the randomized complete blocks design with 4 treatments (IAC-25, red-rice, F1 population and F2 population) and 4 replicates at the Federal Rural University of Pernambuco in the city of Refice. The characters of the genetics parameters estimated were: grain production, plant height, days up to blossoming, number of seeds per panicle, panicle length, flag-leaf length, flag-leaf width, numbers of tillers and days up to seed maturation. It was performed as well the study of the genetic inheritance from the morphologic descriptors: either presence or absence of leaf pilosity on the leaf blade, either golden colour or straws at the glumes and either presence or absence purple apiculus at the rice F2 population by the chi-square test (). In the first experiment was verified that for each 16 descendent at least one would express the expected phenotype based on the occurrence probability of the genotype. The observed values indicates certain non-alignment with the expected estimations as at the RC1 population produced only 6 descendents being that it was expected at least 10 plants with red grain production. In the RC2 population the observed result was even more discrepant concerning the expected values as when it was expected 10 plants with the desired character only 2 were found with the red pericarp. On the second experiment the estimations of the genetics parameters shown that the highest answers by selection were obtained for the plant height, panicle length, numbers of grains per panicle and days up to the blossoming. The plant height and days up to blossoming characteristics showed positive genotypes correlations with the yield. At the inherence study it was evident that the presence and absence of leaf blade pilosity, golden colour and glumes straw have monogenic inheritance and exhibit independent segregation.
No Brasil predomina o consumo do arroz branco, contudo em decorrência do aumento da demanda e a necessidade de atender os novos e diversificados hábitos alimentares, surge como uma alternativa os tipos especiais de arroz que possuem características próprias e distintas do arroz branco. O Arroz vermelho é um dos tipos especiais de arroz e normalmente para o seu cultivo são empregadas sementes “crioulas” ou genótipos locais, que em sua maioria apresentam características, como numero elevado de perfilhos, porte alto e suscetibilidade ao acamamento. Tais caracteres constituem os principais obstáculos encontrados pelo fitomelhorista e que se superados podem proporcionar contribuição inestimável para desenvolvimento da cultura do Arroz vermelho. O objetivo do trabalho foi obter genótipos de arroz com pericarpo vermelho, por meio da metodologia do retrocruzamento e estimar os parâmetros genéticos da população (F2) gerada pelo cruzamento entre cultivar IAC 25 e Arroz vermelho, a partir de descritores qualitativos utilizados na cultura do arroz. As plantas foram conduzidas em vasos plásticos em casa de vegetação e a polinização foi realizada naturalmente pela deiscência das anteras e liberação do pólen. Plantas F1 obtidas do cruzamento entre IAC-25 e Arroz vermelho foram utilizadas como genitores masculinos na obtenção da RC1, tendo como genitor feminino nessa e nas demais etapas de retrocruzamento cultivar IAC-25. Para a condução do experimento e estimativa dos parâmetros genéticos adotou-se o delineamento experimental em blocos casualizados com quatro tratamentos (IAC 25, Arroz vermelho, geração F1 e geração F2) em quatro repetições, conduzido no Campus da Universidade Federal Rural de Pernambuco em Recife. Foram estimados os parâmetros genéticos dos caracteres: produção de grãos, altura da planta, dias até o florescimento, número de grãos por panícula, comprimento da panícula, comprimento da folha bandeira, largura da folha bandeira, número de perfilhos, dias até a maturação dos grãos. Realizou-se também estudo de herança a partir de descritores morfológicos ausência e presença de pilosidade no limbo foliar, coloração dourada ou palha das glumelas e presença ou ausência de apículo púrpura do arroz na da população F2 por meio do teste qui-quadrado (). No primeiro experimento verificou-se que a cada 16 indivíduos pelo menos um apresentaria o fenótipo esperado, com base na probabilidade de ocorrência do genótipo. Os valores observados demonstraram certo desajuste com as estimativas esperadas, pois na população composta de plantas RC1 eram esperadas no mínimo dez plantas com produção de grãos vermelhos, foram constadas apenas seis plantas com esse caráter. Na população composta por plantas RC2 o resultado observado foi ainda mais discrepante em relação aos resultados esperados, pois onde eram esperadas dez plantas com o caráter, foram constatadas apenas duas plantas com grãos de pericarpo vermelho. No segundo experimento as estimativas dos parâmetros genéticos indicaram que as maiores respostas esperadas por seleção foram obtidas nos caracteres altura de planta, comprimento da panícula, número de grãos por panícula e dias até o florescimento. As características altura da planta e dias até a maturação dos grãos apresentam correlações genotípicas positivas com a produtividade. No estudo de herança ficou evidenciado que os caracteres presença e ausência de pilosidade no limbo foliar e cor dourada ou palha das glumelas possuem herança monogênica e apresentam segregação independente.
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Černiauskienė, Ilona. "Ekologiško pieno gamyba ir perdirbimo perspektyvos Lietuvoje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070419_161602-55916.
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Aim: to carry out the research of the organic milk production conditions as well as the study of processing possibilities in Lithuania.
The subject of research. The conditions of organic milk production as well as its relation to sanitary milk indicators in organic farms. Development of the production of organic milk and organic milk products in Lithuania and EC.
Methodology. The research and assessment of microclimate was carried out during the winter period of 2005-2006. 14 organic farms from Jonava, Alytus, Raseiniai, Ukmergė and Molėtai districts were chosen for this purpose. The results of milk quality analysis from 27 organic and the same number from conventional dairy farms were selected from SE „Pieno tyrimai“. The research period was 01 10 2005 – 10 05 2006. During the period the qualitative parameters of organic and conventional milk, such as milk fat content and milk protein content, as well as sanitary parameters, such as general milk bacteria content (GBC) and somatic cells content (SCC), were observed and analyzed. The statistical analysis of the research results was carried out by the statistical package of the computer software “Graph Pad Prism” (Version 2.10; 1996) and software spreadsheet EXCEL. The software package Win Excel 97` was used for the visual presentation of the data.
Results. The trend of organic dairy farms expansion has been observed. The owners of the organic farms pay too little attention to the wellbeing of the dairy cows. Because of... [to full text]
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Růžička, Zdeněk. "Modely pro zkoumání vlivu rušení na kvalitativní parametry signálu UMTS." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-233417.
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This dissertation thesis is focused to interference investigation in UMTS network and interference influence to error ratio and signal to noise or interference ratio. There are presented models based on UMTS physical layer specifications that simulate signal transmission and processing. The aim of simulations is to analyze different types of interference and to appoint the possibilities of this interference decrease.
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Conrad, Emery David. "Bifurcation Analysis and Qualitative Optimization of Models in Molecular Cell Biology with Applications to the Circadian Clock." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27378.
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Circadian rhythms are the endogenous, roughly 24-hour rhythms that coordinate an organism's interaction with its cycling environment. The molecular mechanism underlying this physiological process is a cell-autonomous oscillator comprised of a complex regulatory network of interacting DNA, RNA and proteins that is surprisingly conserved across many different species. It is not a trivial task to understand how the positive and negative feedback loops interact to generate an oscillator capable of a) maintaining a 24-hour rhythm in constant conditions; b) entraining to external light and temperature signals; c) responding to pulses of light in a rather particular, predictable manner; and d) compensating itself so that the period is relatively constant over a large range of temperatures, even for mutations that affect the basal period of oscillation.
Mathematical modeling is a useful tool for dealing with such complexity, because it gives us an object that can be quickly probed and tested in lieu of the experiment or actual biological system. If we do a good job designing the model, it will help us to understand the biology better by predicting the outcome of future experiments. The difficulty lies in properly designing a model, a task that is made even more difficult by an acute lack of quantitative data. Thankfully, our qualitative understanding of a particular phenomenon, i.e. the observed physiology of the cell, can often be directly related to certain mathematical structures. Bifurcation analysis gives us a glimpse of these structures, and we can use these glimpses to build our models with greater confidence.
In this dissertation, I will discuss the particular problem of the circadian clock and describe a number of new methods and tools related to bifurcation analysis. These tools can effectively be applied during the modeling process to build detailed models of biological regulatory with greater ease.Ph. D.
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Raza, Muhammad Bilal [Verfasser]. "Wind Turbine Forward Scatter - Qualitative Analysis, Vital Parameters and Avoidance / Muhammad Bilal Raza." Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2021. http://d-nb.info/1227469667/34.
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Fajtl, Zdeněk. "Study of qualitative parameters of fruit juices and possibilities of their modification via technological modifications." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217155.
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Ovocné šťávy jsou celosvětově nejoblíbenějšími nealkoholickými nápoji. Kromě vitamínů a minerálů jsou také bohatým zdrojem polyfenolů, které jsou považovány za látky přispívající k celkové antioxidační aktivitě. Zvyšující se požadavky konzumentů na kvalitu a bezpečnost potravin nutí výrobce k zvyšování výrobních a kvalitativních standardů potravin. Nedávné inovace ve výrobě ovocných šťáv vedly k modifikacím výrobních podmínek, které zahrnují změny ve složení šťávy (např. přídavek ovocné dužiny nebo malých ovocných kousků), vylepšování vlastností obalových materiálů a modifikace produkční atmosféry. Cílem diplomové práce bylo pomocí metod EPR a UV-VIS spektroskopie posoudit vliv různých výrobních postupů na vybrané kvalitativní znaky (antioxidační aktivita, změna barvy a koncentrace vybraných fytochemikálií) pomerančových šťáv s dužinou a ananasových šťáv, a charakterizovat jejich změny v průběhu dlouhodobého skladování. Získané výsledky byly zpracovány metodami multivariační statistické analýzy s cílem posoudit vliv původu suroviny, roku produkce a použitých výrobních podmínek na sledované parametry a celkovou kvalitu ovocných džusů. Výsledky jasně prokázaly, že pasterizace ovlivňuje kvalitu výrobku; ačkoli byla použita „šetrná“ pasterizace, byl u těchto vzorků pozorován mírný pokles prakticky všech monitorovaných parametrů v porovnání s čerstvými – nepasterizovanými šťávami. Avšak pokud jde o po-pasterizační změny, byl prokázán významný vliv produkční atmosféry na monitorované kvalitativní parametry šťáv, prokazující, že náhrada kyslíku inertními plyny může výrazně prodloužit trvanlivost šťáv. Kinetické studie změn sledovaných parametrů na době skladování ukazují, že ve většině případů dochází k postupnému zhoršování všech monitorovaných parametrů, a to bez ohledu na technologii zpracování šťávy. Ve vzorcích vyrobených použitím modifikované atmosféry bylo, v závislosti na typu inertního plynu, pozorováno zpomalení poklesu jednotlivých kvalitativních parametrů šťáv jako výsledek aplikace inertní atmosféry. Tento trend byl zřejmý především pro delší skladovací období, zatímco na začátku skladování (6 - 7 týdnů po výrobě dané šťávy) byly pozorované trendy nejednoznačné. Lze proto předpokládat že tento „ochranný“ efekt inertní atmosféry je ovlivňován fyzikálně-chemickými vlastnostmi jednotlivých plynů, zejména jejich rozpustností v kapalném médiu. Výsledky také prokázaly že vlastnosti šťáv jsou ,bez ohledu na druh ovoce, výrazně ovlivňovány také sezónními vlivy a původem surové šťávy. Z výsledků statistické analýzy vyplývá, že rok výroby je silným diskriminačním faktorem. Na základě všech monitorovaných charakteristik, bylo dosaženo absolutní diskriminace vzorků pomocí kanonické diskriminační analýzy. Pokud jde o původ surovin, byla dosažena pouze částečná diferenciace, i když s poměrně vysokým klasifikačním skóre. Pokud jde o technologii výroby, byla dosažena pouze částečná diferenciace vzorků podle typu použitého inertního plynu. Získané poznatky pomohou výrobcům ovocných šťáv s optimalizací výrobních podmínek s cílem získat výrobek s maximem prospěšných vlastností, které by si udržel po celou dobu expirace, jejíž délka může být také optimalizovány na základě prezentovaných výsledků.
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England, Ashley Dawn. "Qualitative intake and certain rumen parameters of beef cattle in north western parts of Namibia." Diss., University of Pretoria, 2018. http://hdl.handle.net/2263/65888.
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Beef production is known to be the most important livestock related activity in Namibia (Just over 2 million cattle in Namibia in 2009) with the majority of weaners being exported to the South African feedlot industry. Extensive beef production requires a sound knowledge of management practices, genetics and nutrition. The nutritional requirements of cattle remain one of the most important factors for maximizing return and profitability of the farming enterprise. The purpose of this study was to quantify the nutritive value of two veld types in the north western part of Namibia. The thorn bush savanna was assigned as treatment K whilst the mopane savanna was assigned as treatment M. For the oesophageally collected samples there were differences between the two years (2007 and 2008) for all the parameters as well as differences between the two veld types (treatments) and periods. Crude protein (CP) had a large seasonal variation in both treatments, with treatment K having higher CP concentrations for the majority of the trial period compared to treatment M. Phosphorous (P) also tended to show seasonal variation with higher concentrations during the wet season. The CP requirements for a 400kg cow were not met during the time when the cow is expected to be pregnant, however during lactation and early gestation the CP requirements of a 400kg cow are met from the intake of forage alone. The P requirements of a 400kg cow were met during the majority of the year except during the last trimester of gestation where the forage alone is not able to supply the P requirements of a 400kg cow. Treatment K had higher concentrations of calcium (Ca), zinc (Zn) and copper(Cu) compared to treatment M, whilst Treatment M had a higher concentration of manganese (Mn) during the majority of the trial period. The Mn concentration of the forage was shown to be adequate during most parts of the year and was able to supply the Mn requirements of a 400kg cow during gestation and lactation for both treatments. However, Cu, Zn and Mg were deficient especially during the winter months and intake from forage alone was not able to supply the Cu, Zn and Mg requirements for a 400kg cow during both gestation and lactation. The Ca concentration of both treatments was high, and caution should be taken to ensure that the high intake levels of Ca through feed and water do not cause mineral imbalances. The in vitro digestible organic matter (IVDOM) concentrations increased from the winter to the summer months. The neutral detergent fibre (NDF) and acid detergent lignin (ADL) concentrations varied between treatments as well as throughout the trial period. The rumen cannulated animals showed differences between years, treatments and periods for total volatile fatty acid (VFA) concentration and rumen NH3-N. The rumen ammonia-N concentrations increased during the periods of higher rainfall whilst the total VFA concentration showed no distinct seasonal pattern. The faecal CP results indicated that protein supplementation is necessary especially during periods of lower rainfall. whilst the faecal P results fell within the normal range. The relationship between faecal CP and diet CP concentration was not so strong and faecal CP concentration should be used with caution to predict the CP concentration of the forage. The relationship between faecal P and diet P concentration was also not strong when both treatments and years were combined which confirms that such relationships need to be tested under specific conditions.Dissertation (MSc (Agric))--University of Pretoria, 2018.
Animal and Wildlife Sciences
MSc (Agric)
Unrestricted
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Alyaseri, Isam. "QUALITATIVE AND QUANTITATIVE PROCEDURE FOR UNCERTAINTY ANALYSIS IN LIFE CYCLE ASSESSMENT OF WASTEWATER SOLIDS TREATMENT PROCESSES." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/dissertations/795.
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In order to perform the environmental analysis and find the best management in the wastewater treatment processes using life cycle assessment (LCA) method, uncertainty in LCA has to be evaluated. A qualitative and quantitative procedure was constructed to deal with uncertainty for the wastewater treatment LCA studies during the inventory and analysis stages. The qualitative steps in the procedure include setting rules for the inclusion of inputs and outputs in the life cycle inventory (LCI), setting rules for the proper collection of data, identifying and conducting data collection analysis for the significant contributors in the model, evaluating data quality indicators, selecting the proper life cycle impact assessment (LCIA) method, evaluating the uncertainty in the model through different cultural perspectives, and comparing with other LCIA methods. The quantitative steps in the procedure include assigning the best guess value and the proper distribution for each input or output in the model, calculating the uncertainty for those inputs or outputs based on data characteristics and the data quality indicators, and finally using probabilistic analysis (Monte Carlo simulation) to estimate uncertainty in the outcomes. Environmental burdens from the solids handling unit at Bissell Point Wastewater Treatment Plant (BPWWTP) in Saint Louis, Missouri was analyzed. Plant specific data plus literature data were used to build an input-output model. Environmental performance of an existing treatment scenario (dewatering-multiple hearth incineration-ash to landfill) was analyzed. To improve the environmental performance, two alternative scenarios (fluid bed incineration and anaerobic digestion) were proposed, constructed, and evaluated. System boundaries were set to include the construction, operation and dismantling phases. The impact assessment method chosen was Eco-indicator 99 and the impact categories were: carcinogenicity, respiratory organics and inorganics, climate change, radiation, ozone depletion, ecotoxicity, acidification-eutrophication, and minerals and fossil fuels depletion. Analysis of the existing scenario shows that most of the impacts came from the operation phase on the categories related to fossil fuels depletion, respiratory inorganics, and carcinogens due to energy consumed and emissions from incineration. The proposed alternatives showed better performance than the existing treatment. Fluid bed incineration had better performance than anaerobic digestion. Uncertainty analysis showed there is 57.6% possibility to have less impact on the environment when using fluid bed incineration than the anaerobic digestion. Based on single scores ranking in the Eco-indicator 99 method, the environmental impact order is: multiple hearth incineration > anaerobic digestion > fluid bed incineration. This order was the same for the three model perspectives in the Eco-indicator 99 method and when using other LCIA methods (Eco-point 97 and CML 2000). The study showed that the incorporation of qualitative/quantitative uncertainty analysis into LCA gave more information than the deterministic LCA and can strengthen the LCA study. The procedure tested in this study showed that Monte Carlo simulation can be used in quantifying uncertainty in the wastewater treatment studies. The procedure can be used to analyze the performance of other treatment options. Although the analysis in different perspectives and different LCIA methods did not impact the order of the scenarios, it showed a possibility of variation in the final outcomes of some categories. The study showed the importance of providing decision makers with the best and worst possible outcomes in any LCA study and informing them about the perspectives and assumptions used in the assessment. Monte Carlo simulation is able to perform uncertainty analysis in the comparative LCA only between two products or scenarios based on the (A-B) approach due to the overlapping between the probability distributions of the outcomes. It is recommended to modify it to include more than two scenarios.
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Zhang, Yulei. "Computer Experiments with Both Quantitative and Qualitative Inputs." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408042133.
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Kim, Hyeong Nam. "Qualitative and Quantative Characterization of Trapping Effects in AlGaN/GaN High Electron Mobility Transistors." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250612796.
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Imamovic, Jasmina. "A tt köpa och sälja konsulttjänster inom byggsektorn - En undersökning av kompetensupphandling inom offentlig och privat sektor." Thesis, KTH, Fastigheter och byggande, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170653.
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Kauk, Nycole C. "The Experience of Coparenting Within the Parameters of Divorce: Perspectives from Parents of Children with Autism Spectrum Disorder." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7312.
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Autism Spectrum Disorder (ASD) is a disorder that includes persistent impairment in verbal and nonverbal communication, social interaction, and restricted and repetitive patterns of behaviors, interests, or activities. The purpose of this study is to capture the perspectives and experiences of parents who are divorced but are still coparenting their child with ASD. Current literature gives insight into how ASD affects the family system, but there is no literature to date that examines how parents coparent their child when the family system is split. ASD is a lifelong and impactful disorder impacting not just the individual’s adaptive functioning, but also all relationships within the family system. Often times, families with a child diagnosed with ASD have reported strained parental marital relationships due to the increased demands on the parents, which, at times, may lead to divorce (Cridland et al., 2014; DePape & Lindsey, 2015).
This study took take a qualitative interview approach to gain insight into parents’ experiences with coparenting post divorce through the use of open-ended interviews. Inductive and deductive thematic analysis provided data to assist in understanding the experiences of parents raising a child with ASD within the context of divorce, what impact divorce has on themselves and their child, how parents work with their coparenting partner to share and divide responsibilities related to their child, how parents in a coparenting relationship work to minimize the impact of the divorce on their child diagnosed with ASD, as well as understanding what challenges persist in coparenting their child with ASD post divorce.
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Kropáč, Ondřej. "Návrh tvarovacího systému pro laserový svazek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219163.
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Diploma thesis deal with design of laser beam shaping system. The theoretical part presents basic information about the light spread lika the optical beams. There are also properties of optical and optoelectronic components that are used for shaping the laser beam. The next section provides basic molding methods, their principles and qualities. In the last, experimental, part is first introduced designed computer algorithm, which is then used to calculate the quality parameters shaped laser beams. Following, there are presented the results of measurements and calculations for some of these methods.
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Fredj, Montassar Abdelhack. "Analyse qualitative des paramètres influents pour la planification de trajectoires en tréflage sur alliages de titane." Thesis, Toulouse 3, 2021. http://www.theses.fr/2021TOU30006.
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Le travail présenté dans ce mémoire s'intéresse au tréflage (ou fraisage en plongée) appliqué à l'usinage des pièces en alliage de titane Ti6Al4V. Ce sujet dérive de la problématique de l'absence des aides au choix des paramètres et des stratégies d'usinage pour ce procédé. L'approche proposée comporte principalement trois parties. La première partie traite l'influence des conditions de coupe et des paramètres géométriques de l'outil de coupe, à travers la réalisation de plusieurs essais expérimentaux avec différents outils et l'analyse des efforts de coupe générés. Les données obtenues ont permis la mise en place d'une modélisation des efforts de coupe intégrant l'ensemble des paramètres étudiés. La deuxième partie est dédiée à l'étude d'une problématique identifiée durant les essais expérimentaux, qui est l'augmentation des forces de coupe à la fin de la phase de plongée en tréflage. L'analyse de l'influence des paramètres géométriques et des conditions de coupe a permis de proposer des préconisations sur leurs choix et des modes opératoires permettant d'éviter ce problème. La dernière partie est consacrée à l'optimisation des stratégies de tréflage en FAO dans le cas de poches simples. La démarche proposée permet d'optimiser le choix du pas de plongée et du diamètre d'outil, pour arriver à minimiser le nombre de plongées nécessaires à l'ébauche de la pièceThe work presented in this paper deals with the plunge milling applied to the machining of workpieces made of titanium alloy Ti6Al4V. This topic derives from the problem of the absence of aids in the selection of parameters and machining strategies for this process. The proposed approach consists in three main steps. The first part deals with the influence of the cutting conditions and geometric parameters of the cutting tool, by carrying out several experimental tests with different tools and analysing the generated cutting forces. The data obtained allowed the development of a modelling of the cutting forces integrating all the studied parameters. The second part is dedicated to the study of a problem identified during the experimental tests, which is the increase of the cutting forces at the end of the plunging phase. The analysis of the influence of geometric parameters and cutting conditions has resulted in the proposal of recommendations regarding the choice of these parameters and the operating procedures in order to avoid this problem. The last part focuses on the optimization of plunge milling strategies in CAM in the case of simple pockets. The proposed approach allows to optimize the choice of the radial offset and the tool diameter, in order to minimize the number of plunges required in roughing the workpiece
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Flitter, Helmut. "Entwicklung einer computergestützten Kurzform des Gedächtnis für Personen-Tests unter Berücksichtigung quantitativer und qualitativer Parameter der Gedächtnisleistung." Dresden TUDpress, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?id=3058479&prov=M&dok_var=1&dok_ext=htm.
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Lima, Cristiana Santos. "Letramento em língua inglesa: um estudo de caso em uma escola pública." Pontifícia Universidade Católica de São Paulo, 2009. https://tede2.pucsp.br/handle/handle/14108.
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This study aims at investigating whether a teaching material planned, focusing on writing and reading tasks, according to content guidelines present in PCN Foreign Language can contribute to the development of writing in the light of a literacy approach. The guidelines followed were the ones of qualitative research methods for collecting and analyzing the data. The present investigation concluded that the tasks related to reading and writing constitute a literacy event, it also showed the possibility for development of writing. A favorable response by students to those tasks proposed on the teaching material were also identified
Este estudo tem como objetivo investigar se uma unidade didática reelaborada seguindo os eixos de conteúdo presentes nos PCN Língua Estrangeira pode contribuir para o desenvolvimento da escrita à luz dos estudos sobre letramento. As diretrizes seguidas foram da pesquisa qualitativa para coletar e analisar os dados. A presente investigação concluiu que as tarefas relacionadas a leitura e a escrita constituem-se como evento de letramento escolar, mostrou também a possibilidade para o desenvolvimento da escrita. Identificou-se também uma receptividade favorável dos alunos às tarefas propostas na unidade didática
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Schumacher, Ulrike Verfasser], Thomas [Akademischer Betreuer] [Römer, and Jan [Akademischer Betreuer] Endrikat. "Quantifizierung qualitativer Menstruationstagebücher mittels gemischter linearer Modelle unter Berücksichtigung der Blutungsintensität und weiterer Parameter / Ulrike Schumacher. Betreuer: Thomas Römer ; Jan Endrikat." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2011. http://d-nb.info/1025851846/34.
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Chandavarkar, Rohan Vivek. "Eco-inspired Robust Control Design for Linear Time-Invariant systems with Real Parameter Uncertainty." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1373467190.
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Siala, Chakroun Aida. "Modélisation et représentation des exigences spatiales qualitatives : Vers des pratiques BIM orientées « espace »." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0191.
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En concevant, l’architecte donne à l’espace non seulement une forme, mais aussi des aspects de topologie, d’accessibilité et de confort. Cette production est basée sur un ensemble d’exigences spatiales qualitatives (ESQL) décrites en phase de programmation architecturale. Les pratiques BIM actuelles reposent sur des formats standards qui transforment toute l’information sur le bâtiment en données essentiellement quantitatives, ne permettant pas de prendre en compte ces exigences. Dans ce travail de recherche, nous proposons une nouvelle approche de conception qui permet d’intégrer les ESQL à l’outil BIM (Revit) et de vérifier la conformité de la conception en fonction. Cette approche repose sur un nouveau modèle d’espace incluant et structurant les ESQL. Ce modèle est spécifié sur la base d’un travail d’identification des ESQL les plus fréquemment utilisées pour qualifier les espaces en phase de programmation architecturale. Notre approche est évaluée à travers une démarche de validation expérimentaleIn designing, the architect gives space not only a form, but also other aspects of topology, accessibility and comfort. This production is based on a set of qualitative spatial requirements (ESQL) described in the architectural programming phase. Current BIM practices are based on formats transforming all building information into essentially quantitative data, which does not allow taking into account these ESQL. In this research, we propose a new design approach that takes into account and verifies the ESQL using one of the current BIM tools (Revit). This approach is based on a new space model including and structuring the ESQL. This model is based on an identification work for the most frequently used ESQL to qualify spaces in the programming phase. Our approach is evaluated through an experimental validation process
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Hofmann, Felix O. [Verfasser], and Wieland [Akademischer Betreuer] Sommer. "Computed tomography in metastatic colorectal cancer under combination-therapy : exploration of qualitative and quantitative image parameters for risk and response assessment / Felix O. Hofmann ; Betreuer: Wieland Sommer." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1202011705/34.
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Aldemir, Basak. "Parameter Optimization Of Chemically Activated Mortars Containing High Volumes Of Pozzolan By Statistical Design And Analysis Of Experiments." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607106/index.pdf.
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ABSTRACT
PARAMETER OPTIMIZATION OF CHEMICALLY ACTIVATED MORTARS CONTAINING HIGH VOLUMES OF POZZOLAN BY STATISTICAL DESIGN AND ANALYSIS OF EXPERIMENTS
Aldemir, BaSak
M.S., Department of Industrial Engineering
Supervisor: Prof. Dr. Ömer Saatç
ioglu Co-Supervisor: Assoc. Prof. Dr. Lutfullah Turanli January 2006, 167 pages This thesis illustrates parameter optimization of early and late compressive strengths of chemically activated mortars containing high volumes of pozzolan by statistical design and analysis of experiments. Four dominant parameters in chemical activation of natural pozzolans are chosen for the research, which are natural pozzolan replacement, amount of pozzolan passing 45 &
#956
m sieve, activator dosage and activator type. Response surface methodology has been employed in statistical design and analysis of experiments. Based on various second-order response surface designs
experimental data has been collected, best regression models have been chosen and optimized. In addition to the optimization of early and late strength responses separately, simultaneous optimization of compressive strength with several other responses such as cost, and standard deviation estimate has also been performed. Research highlight is the uniqueness of the statistical optimization approach to chemical activation of natural pozzolans.
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Courage, Timo [Verfasser], Martin [Akademischer Betreuer] Halle, Martin [Gutachter] Halle, and Peter [Gutachter] Biberthaler. "Korrelation quantitativer und qualitativer Parameter von Sportler-Elektrokardiogrammen mit echokardiographischen, anthropometrischen und trainingsbezogenen Daten zur Risikostratifizierung / Timo Courage ; Gutachter: Martin Halle, Peter Biberthaler ; Betreuer: Martin Halle." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1155303245/34.
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Ebrahimi, Ehsan [Verfasser]. "Effect of different types of soil conditioners (plant-derived composts and animal manure) and application methods on quantitative and qualitative characteristics of tomatoes and selected soil parameters / Ehsan Ebrahimi." Kassel : Universitätsbibliothek Kassel, 2019. http://d-nb.info/1191199614/34.
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Fachada, Ivone. "Estudo da adaptabilidade da Quercus suber L. no Nordeste Transmontano." Master's thesis, Universidade dos Açores, Instituto Politécnico de Bragança, 2006. http://hdl.handle.net/10198/1039.
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Neste trabalho estuda-se um ensaio de 34 proveniências de Quercus suber L. oriundas
da bacia mediterrânica, com 7 anos de idade, com vista à definição da sua
adaptabilidade às condições edafo-climáticas do Nordeste Transmontano, uma vez que a
maioria da variação das características relacionadas com a adaptabilidade é ao nível da
proveniência. Avalia-se a variabilidade inter-proveniência e a plasticidade fenotípica do
crescimento, sobrevivência e estrutura morfológica.
Os resultados obtidos no ensaio de proveniências mostram que existe variabilidade na
adaptabilidade entre as várias proveniências analisadas, para todas as características em
estudo. Nesta fase, as populações marroquinas apresentam o maior crescimento médio
em altura, seguidas de duas populações espanholas. Relativamente aos diâmetros, há
três proveniências espanholas que se destacam das restantes por possuírem um maior
crescimento médio em diâmetro.
Os resultados evidenciam ainda que a Quercus suber L. é uma espécie capaz de gerar
populações muito diversas e com indivíduos diferenciados em que existe uma elevada
variabilidade genética. Assim sendo, é necessário estar atento à escolha das populações
a utilizar no futuro para acções de repovoamento, com vista a seleccionar os indivíduos
que terão mais hipóteses de sucesso na sua adaptação e desta forma aumentar o
potencial produtivo do sobreiro com especial relevo para a produção de cortiça e criar
condições para o fornecimento abundante e regular de material reprodutivo de provada
qualidade genética.In this research we studied a trial with 34 provenances of Quercus suber L. from the Mediterranian Basin, with seven years old, to determine which provenances adapt better to the climate and soil conditions of the Northeast of Trás-os.Montes, because most of the variation of the characteristics related with adaptability relies at the provenance level. We evaluate the inter-provenance variation and the phenotypic plasticity of growth, survival and morphology structure. The results obtained in the provenance trial show that there is variability in adaptability among the several provenances tested for all variables. At this stage, marroquin populations present the higher medium growth in height. In diameter, three spanish populations present the higher values for medium growth. The results also show that the Quercus suber L. is a species able to generate many different populations, with many different individuals, in which the genetic variability is very high. Therefore, is necessary to choose carefully the populations we’ll use in the future in reforestation, choose individuals with more survival success and adaptation so we can improve the productive potential of the cork oak, specially in the cork production and create conditions for the regular supply of reproductive material of good genetic quality.
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Souflas, Ioannis. "Qualitative Adaptive Identification for Powertrain Systems. Powertrain Dynamic Modelling and Adaptive Identification Algorithms with Identifiability Analysis for Real-Time Monitoring and Detectability Assessment of Physical and Semi-Physical System Parameters." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14427.
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A complete chain of analysis and synthesis system identification tools for detectability assessment and adaptive identification of parameters with physical interpretation that can be found commonly in control-oriented powertrain models is presented. This research is motivated from the fact that future powertrain control and monitoring systems will depend increasingly on physically oriented system models to reduce the complexity of existing control strategies and open the road to new environmentally friendly technologies. At the outset of this study a physics-based control-oriented dynamic model of a complete transient engine testing facility, consisting of a single cylinder engine, an alternating current dynamometer and a coupling shaft unit, is developed to investigate the functional relationships of the inputs, outputs and parameters of the system. Having understood these, algorithms for identifiability analysis and adaptive identification of parameters with physical interpretation are proposed. The efficacy of the recommended algorithms is illustrated with three novel practical applications. These are, the development of an on-line health monitoring system for engine dynamometer coupling shafts based on recursive estimation of shaft’s physical parameters, the sensitivity analysis and adaptive identification of engine friction parameters, and the non-linear recursive parameter estimation with parameter estimability analysis of physical and semi-physical cyclic engine torque model parameters. The findings of this research suggest that the combination of physics-based control oriented models with adaptive identification algorithms can lead to the development of component-based diagnosis and control strategies. Ultimately, this work contributes in the area of on-line fault diagnosis, fault tolerant and adaptive control for vehicular systems.
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Mergen, Victor Frank Simon [Verfasser], Matthias [Akademischer Betreuer] Eiber, Bernhard [Gutachter] Voss, and Matthias [Gutachter] Eiber. "Diagnostische Wertigkeit qualitativer und quantitativer Parameter für die Diagnose von Aortenprotheseninfektionen mittels [18F] - FDG PET/CT / Victor Frank Simon Mergen ; Gutachter: Bernhard Voss, Matthias Eiber ; Betreuer: Matthias Eiber." München : Universitätsbibliothek der TU München, 2021. http://d-nb.info/1235139581/34.
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Harasim, Tomáš. "Návrh diagnostické soustavy pro malý dopravní letoun." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231664.
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Due to the airliners and aircraft operators pressure on reducing the operating costs, the diagnostic systems are included in aircraft, so that the wearness of single functional elements of other functional systems can be monitored. This monitoring can save money, that are usually spent on maintenance and especially, it leads to an increase of the overall safety of aircraft operations. The task of this work is to design a diagnostic system for small transport aircraft. For the right and proper design, is the correct understanding of the functions of each part on aircraft systems needed. The part of this work is attended to the selection procedure of appropriate diagnostic parameters, next section deals with the suitable options of their scanning. I do mention the summary of the chosen diagnostic parameters for the scanning and the recomended ways of their measuring.
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Jugulytė, Lina. "Augimo reguliatoriaus CCC įtaka darželinės našlaitės (Viola x wittrockiana Gams) auginimui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_111352-59005.
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Darbo objektas – našlaičių (Viola x wittrockiana Gams) daigai apdoroti skirtingos koncentracijos augimo reguliatoriaus CCC tirpalais (0,15 %, 0,30 % ir 0,45 %), skirtingais būdais (laistant ir purškiant) ir dažniais (kas 7 dienas ir 14 dienų).
Darbo metodai: Tirti našlaičių biometriniai rodikliai pagal J. Vaidelio (2005) sudarytą metodiką. Matavimai atlikti balandžio 20 d., augalams pasiekus žydėjimo tarpsnį (BBCH 60 - 65), kurio metu vertinta našlaičių daigų žiedų dydis, žiedstiebių ir lapkočių ilgiai, kerelių aukštis bei plotis, apskaičiuotas žiedpumpurių ir lapų skaičius bei nustatyta žydėjimo pradžia.
Darbo rezultatai. Panaudotas augimo reguliatorius CCC, turėjo įtakos našlaičių (Viola x witrockiana Gams) daigų kokybiniams rodikliams. Didinant tirpalo koncentraciją (0,15 %, 0,30 %, 0,45 %) nustatyta lapų, žiedpumpurių skaičiaus didėjimo tendencija ir vėlino žydėjimo pradžią. Skirtinga koncentracija statistiškai patikimai veikė (mažino) našlaičių kerelių aukštį, žiedstiebio ir lapkočio ilgį bei kerelių skersmenį. Patikimai daugiausiai lapų užaugino, našlaitės, kurios buvo laistytos kas 14 dienų lyginant su kontroliniu variantu. Žydėjimo trukmę labiausiai įtakojo laistymas kas 14 d. didžiausios koncentracijos tirpalu, tuo tarpu anksčiausiai žydėti pradėjo daigai, purkšti kas 7 dienas, 0,15 % CCC tirpalu. Didžiausią įtaką lapkočio ir žiedstiebio ilgiui turėjo laistymas kas 14 d., 0,45 % tirpalu. Didinant koncentraciją, tačiau ribojant purškimų skaičių, našlaičių daigai... [toliau žr. visą tekstą]Object of the work: pansy (Viola x wittrockiana Gams) seedlings treated with different concentrations of growth regulator CCC solutions (0,15 %, 0,30 % and 0,45 %) in different ways (spraying and watering) and frequency (every 7 and 14 days ). Methods of the work: pansy biometric parameters were measured using the methodology by J. Vaidelys (2005). Measurements were carried out on 20th April. When plants reached the flowering stage (BBCH 60 - 65) during which assessment of pansy size of flowers, and the stalks lengths, seedling height and diameter, calculated the number of flower buds and leaves and set the beginning of flowering. The results of the work: growth regulator CCC, had an impact on pansy’s (Viola x witrockiana Gams) seedling quality parameters. Increasing the concentration of the solution (0,15%, 0,30%, 0,45%), amount of leaves and buds increasing trend. Different concentrations were significantly reduced pansy seedling height, stalk length and diameter of the plant, but did not affected the flower size. The biggest impact was 0,45 % concentration of the solution. Reliably produced the most leaves, pansy, which watered every 14 days compared with the control treatment. Flowering time was much influenced by watering every 14 days with the highest concentration of a solution, while the earliest flowering started when pansy was spray every 7 days with 0,15 % CCC solution. The biggest impact on the stalk and the length was watering every 14 days with 0,45% solution... [to full text]
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Mockuvienė, Asta. "Žemės ūkio technika prekiaujančių įmonių konkurencingumo didinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050608_093023-26177.
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Final work of the University Undegraduate Studies, 60 pages, 9 figures, 11 tables, 52 references, 16 appendixes.
Key words – total index of item competitiveness, total index of item group competitiveness, competition, competition limiting, competition conditions, competition strategy, competition market, competitiveness, competitiveness evaluation, competitiveness factors, competitive advantage, competitors, summary economical parameters index of competitiveness, summary qualitative parameters index of competitiveness, summary index of company’s goods competitiveness.
Research object – agricultural equipment selling companies.
Research subject – competitiveness in agricultural equipment selling companies.
Research aim – to identify possibilities of creating competitiveness in agricultural equipment selling companies.
Research tasks:
- to dispute theoretical principals of competitiveness;
- to prepare methodology of evaluation competitiveness of agricultural equipment;
- to analyse market of agricultural equipment;
- to estimate competitiveness of chosen agricultural equipment;
- to identify conditioning to obtain the competitive advantage.
Research methods:
- comparative analysis of special literature sources;
- comparative analysis of agricultural equipment competitiveness based on counting relative indexes;
- interview with companies managers and other employees;
- statistical analysis, graphic, data grouping other methods.
Research period : year 2000 – 2004.
In this final... [to full text]
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DOULCIER, LAURENT JEAN. "Insertion des lignes nouvelles t. G. V. En sites peri-urbains : proposition d'une methode d'etude d'impacts fondee sur l'elaboration de 15 classes qualitatives et une notation normalisee des parametres permettant la mise en oeuvre operationnelle d'un nouvel outil pour l'urbanisme." Paris 12, 1999. http://www.theses.fr/1999PA120035.
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Ce travail de recherche est une contribution, avec un certain souci d'application pratique, sur la facon d'aborder les etudes d'impacts en general, au travers de l'etude specifique du probleme de l'insertion des lignes nouvelles t. G. V. En site peri-urbains. Il s'appuie sur l'introduction paradoxale de la notion de classes qualitatives dans le continuum des composantes de l'urbanisme pour mieux l'apprehender en lui associant des instruments qualitatifs et quantitatifs qui jouent le role de mesures en apportant des aides a la decision dans les etudes comparatives. Des operations simples sur les classes permettent ensuite de qualifier des situations ou plusieurs criteres interviennent simultanement sans recourir a une mathematique compliquee de part la definition d'un nouveau concept operationnel, "l'hectare d'impact qualitatif", qui permet de mesurer l'intensite de la perte qualitative du site ou au contraire son eventuel gain qualitatif du fait d'un amenagement opportun par rapport a l'etat existant. Cette approche par classes et elements qualitatifs et semi-quantitatifs, permet a une grande diversite de profil de sensibilite de debattre sur des bases figuratives mettant en exergueles convergences et les divergences et d'etablir de ce fait, de veritables bases d'aides a la decision lors des indispensables choix. ___________________________________
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Šulák, Petr. "Vysokovýklopná lopata dřevní štěpky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442820.
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WANG, ZE-QING, and 王澤清. "Qualitative and quantitative reasoning in equation-centered iterative parametric design." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/41596483243975383110.
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Lee, Michelle Kwok. "Summarizing Qualitative Behavior from Measurements of NonlinearsCircuits." 1989. http://hdl.handle.net/1721.1/6825.
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This report describes a program which automatically characterizes the behavior of any driven, nonlinear, electrical circuit. To do this, the program autonomously selects interesting input parameters, drives the circuit, measures its response, performs a set of numeric computations on the measured data, interprets the results, and decomposes the circuit's parameter space into regions of qualitatively distinct behavior. The output is a two-dimensional portrait summarizing the high-level, qualitative behavior of the circuit for every point in the graph, an accompanying textual explanation describing any interesting patterns observed in the diagram, and a symbolic description of the circuit's behavior which can be passed on to other programs for further analysis.
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PAVLÁTOVÁ, Kristýna. "Tvorba výnosu a kvalita ozimé pšenice v podmínkách setrvalého pěstování." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395301.
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The aim of this thesis is to evaluate basic yield formation and food quality of grain in selected winter wheat varieties, depending on the intensity of cultivation. There was 5 varieties chosen for the experiment of which 3 was linear (Patras, Turandot and Rumor) and 2 varieties was hybrid (Hyfi and Hybery). Each variety was repeated three times during the experiment. The vegetation was assessed in two variations - the checking one and the one fertilized by the nitrogen. This experiment was conducted in growing season 2017/2018 on the field of Faculty of Agriculture of University of South Bohemia. The withdrawal of the vegetal material for the purpose of the following sample analysis was done right before the harvesting. The yield formation and the health condition of the vegetation was assessed in the fieldwork. The determination of qualitative parameters was made with the help of the apparatus in the laboratory of the faculty. Then, the results was marked in tables and graphics. Finally, the statistical evaluation of the obtained data. An average yield of all assessed varieties of the winter wheat was 8,52 t.ha-1 at the checking variation. On the contrary, at the nitrogen fertilized one the average yield was 8,94 t.ha-1. The evaluated varieties in the growing season 2017/2018 had the baking quality A and B. Regarding the qualitative parameters, there was found lower values of volume quantity than those that are stated in the norm for the food wheat (at least 76,0 kg.hl-1). The highest values were found at the variety Turandot fertilized by nitrogen (77,8 kg.hl-1), which met the requirements of the ČSN 4611 00-2.
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Papadopoulos, Evangelos. "Systematische visuelle MRT-Analyse zur qualitativen Beurteilung therapeutisch-relevanter Parameter des Kiefergelenkes." 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014731865&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Escadas, Pedro Valter Sousa. "Caracterização das águas residuais em instituições de ensino superior : o Campus de Gualtar da Universidade do Minho." Master's thesis, 2013. http://hdl.handle.net/1822/31032.
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Dissertação de mestrado integrado em Engenharia Civil (área de especialização em Perfil de Hidráulica e Ambiente)A água é um património de todos e imprescindível à vida, sendo a alteração da sua qualidade prejudicial ao Homem e a todos os seres vivos. Adicionalmente, com o decorrer do tempo, a água será um bem cada vez mais precioso, pois a água disponível para consumo será cada vez mais escassa. Ora esta problemática tem vindo a desencadear bastantes preocupações, nomeadamente, no que respeita a tentar minimizá-la e tomar medidas para que não seja cada vez mais agravada. Recentemente, tem-se vindo a assistir a esforços para a utilização de águas residuais para fins recreativos e industriais, de modo a colmatar a escassez de água. A presente dissertação visou contribuir para uma melhor gestão das redes de drenagem de águas residuais do Campus de Gualtar da Universidade do Minho. A metodologia da presente investigação seguiu uma linha sequencial de trabalhos. A primeira etapa consistiu na análise do cadastro das infraestruturas e na seleção dos pontos mais críticos, isto é, locais que à partida apresentassem caudais e constituintes das águas mais críticos. Numa segunda fase, procedeu-se à monitorização in-situ, com o auxílio de um amostrador automático ISCO da série 6712 e utilizou-se a programação extended. Após a recolha das amostras, e numa terceira fase, estas foram armazenadas a 5ºC até serem efetuadas as suas análises qualitativas. Estas análises visaram a caracterização de diversos parâmetros, nomeadamente: Temperatura, pH, Oxigénio Dissolvido (OD), Condutividade elétrica (CE), Redução - Oxidação (Redox), Fosforo Total (P); Fosfato (P03-/4, Amónia (NH32); Amónio (NH+/4), Nitrato (N0-/3) e Carência Bioquímica de Oxigénio (CBO). Com este estudo veio a concluir-se que nenhum dos parâmetros analisados excede os valores permitidos de emissão de poluentes, pela legislação em vigor, e consegue-se analisar os pontos mais críticos de emissão de água residual para a rede de drenagem, bem como a sua variação ao longo do dia.
Water is a heritage of all and essential to life, and the change in its quality is harmful to humans and to all living beings. In addition, over time, water will be an increasingly valuable resource since water for consumption will be increasingly scarce. Therefore, this topic has received increasing attention, particularly trying to minimize a change in water quality and taking actions to prevent its worsening. Recently there have been efforts to use wastewater for recreational and industrial purposes, in order to overcome the shortage of water. This was the background in this dissertation, aiming to contribute to a better management of networks of drainage wastewater in Campus de Gualtar, University of Minho. The methodology of this research follows a set of sequential stages. The first stage was the analysis of infrastructures and selection of the most critical points, i.e. the places that present flow rates and constituents of water more critical. In a second stage, was proceeded to the monitoring in-situ, using an automatic sampler ISCO series 6712 with the programming extended, the most complete one. After collecting the samples, and in a third stage, samples were stored at 5ºC until their qualitative analyses were performed. These analyzes aimed the characterization of different parameters, such as temperature, pH, Dissolved Oxygen (DO), electrical conductivity (EC), Reduction - Oxidation (Redox), Total Phosphorus (P), Phosphate (P03-/4,), Ammonia (NH3 ), Ammonium (NH+/4), Nitrate (N0-/3) and Biochemical Oxygen Demand (BOD). With this study came to be concluded that none of the parameters analyzed exceeds the allowed values emission of pollutants, by legislation, and it is possible to analyze the most critical points of emission of waste water into the drainage network, as well as its variation during the day.
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Bloom, Francis Alexander, and 法蘭西斯. "The Ethical Parameters of Guanxi: A Qualitative Study of North American Owned Businesses in Taiwan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/tny4s7.
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碩士國立中山大學
人力資源管理全英語碩士學位學程
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This study qualitatively explores the ethical parameters of guanxi from the perspective of North Americans who own small businesses in Taiwan. Guanxi is the traditional method of doing business in China, and explains how social networks develop. It is complex, and personal, and very hard for an expatriate from North America to integrate into, when owning and running a business. Developing business relationships with individuals can be complex and time consuming. Guanxi explains how everyone has a role, and must behave in a certain way according to the context. Networks can include numerous stakeholders, including neighbors, police and family. The process involves a lot of gift-giving and mutual reciprocity, and can sometimes have negative connotations leading to bribery and/or corruption, and is sometimes viewed as unethical. This research specifically looks at Taiwan which often gets overlooked. It is sometimes assumed that Guanxi in Taiwan mirrors that in China, even though there is evidence of differences. Ten in-depth semi-structured interviews were conducted with expatriates in Taiwan. The sample includes individuals who have lived in Taiwan for up to ten years, successfully run a business for a minimum of five, and have a high-skill level of the Chinese language. Questions explored interviewees experiences of developing, and understanding, Guanxi networks in the Taiwanese system. Semi-structured interviews were conducted to study which networks were necessary and how to develop these relationships, in order for an expatriate to succeed in Taiwan. This study also considers the culturally different perspectives of business relationships, specifically, business relationship developments, transactions, or negotiations which may have been viewed as unethical in a North American context, but are perceived as morally just in a Taiwanese cultural context. This research will look at the ethical perspectives of two different cultures in relation to Guanxi relationships. The findings have practical implications, providing beneficial insights for any American individual or organization willing to do business in Taiwan.
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Jan, Pey-Chen, and 詹佩珍. "Developing Optimal Operating Parameters for Wastewater Treatment Units of A Paper Manufacture Factory- By Tagachi Qualitative Engineering Assessment Model." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/29387027576333387844.
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碩士國立高雄第一科技大學
環境與安全衛生工程所
90
Developing Optimal Operating Parameters for Wastewater Treatment Units of A Paper Manufacture Factory- By Tagachi Qualitative Engineering Assessment Model Abstract Traditionally, the operation parameters of wastewater treatment units were generally determined by laboratory experimental analyses and personal experiences on sites. They generally could not be operated under the best conditions for these wastewater treatment units due to the properties and flowrate wastewater changed quite often or due to after a long time of operation of wastewater treatment plants. Especially, the raw material for paper manufacture factory was depended on the recycled wastepaper and its prosperities were different frequently. This results in the quality of process wastewater changed frequently. It is necessary to establish a fast and systematical simulating model that can adjust the operation parameters of wastewater treatment units in a possibly shortest period. Thus, the main objective of this study was to establish the optimal operating parameters for wastewater treatment unites from a paper manufacture factory with Tagachi qualitative engineering assessment model. Both physical and biological wastewater treatment unit operations were investigated as examples. Meanwhile, to establish the wastewater recycling operation was another purpose for this investigation. Several information and analytic skills such as orthogonal tables, effect tables, effect figures, average process data assessment, and variation analyses is generally applied by Tagachi model. The analytic results indicated that the dosage of PAC and polymer, air/water ratio, and water quality of influent wastewater would affect the removal efficiencies of the flotation wastewater treatment units. Using this model, we developed the optimal operating parameters and achieved the enhancement of 30 % in the COD removal efficiency. Another advantage of the analytic procedures also showed that the recovery period could be reduced from 3 day to 4 hours from failing operation of the floatation operation units. In addition, for biological wastewater treatment units (oxidation ditch), we developed the optimal operated parameter and achieved 10% of increase in COD removal efficiency. Several parameters were important for achieve better removal efficiencies of biological treatment units. They were properties of wastewater, rotating frequencies of air purging machine, the amount of dosage of bio-adds, and cycling biological sludge ratios. The study results also indicated that the reuse of wastewater could be recycled up 87 %. This ratio was much higher than the average recycling ratios of wastewater water for most paper manufacture factories in Taiwan. Keywords: Tagachi model; system analyses, wastewater treatment, optimization, floatation, oxidation ditch, operational parameters
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Pinc, Jan. "Opylování rostliny Clusia blattophila: kvalitativní a kvantitativní parametry vztahu mezi rostlinou a opylovači." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-347818.
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This work discusses the pollination system of Clusia blattophila on the Nouragues inselberg in the central part of French Guiana. The pollination system is unique, because one of the pollinators is probably a cockroach species, Amazonina platystylata. It is the third, and the last known case of cockroach pollination. Flowers are also visited by crickets (Gryllidae), flies (Diptera) belonging to the families Hybotidae, Cecidomyiidae, Dolichopodidae, and some other arthropods. This work deals with the effectiveness of the pollination system and its two components. The quantitative component of the pollination effectiveness is characterized by the number of visits and visit duration. A qualitative characteristic of pollination is characterized by the number of pollen transferred by individual pollinator. To determine quantitative characteristics, ca. 450 hours of recordings were taken. From the recordings, it is apparent that cockroaches and dipterans occur on flowers more frequently, and also that cockroaches and crickets spends on flowers more time. To determine the quantitative characteristics, pollen load on stigma and insect was determined and an exclusion experiment was performed when only some floral visitors were allowed to touch the flowers. All experiments confirm that cockroach Amazonina...
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Geretschläger, Andreas Christian. "Quantitative und qualitative Analyse der Ergebnisse der intertrochanteren Varisierungsosteotomie in der Therapie des Morbus Perthes und Identifikation der den Operationserfolg bestimmenden Parameter /." 2002. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014897954&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Flitter, Helmut [Verfasser]. "Entwicklung einer computergestützten Kurzform des Gedächtnis für Personen-Tests unter Berücksichtigung quantitativer und qualitativer Parameter der Gedächtnisleistung / vorgelegt von Helmut Flitter." 2005. http://d-nb.info/977956067/34.
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