Дисертації з теми "Shake Maps"
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Moratto, Luca. "Ground motion estimation in the eastern-southern alps:from ground motion predictive equations to real-time shake maps." Doctoral thesis, Università degli studi di Trieste, 2008. http://hdl.handle.net/10077/2688.
Повний текст джерелаLo scopo di questa tesi di dottorato è la stima del moto forte del suolo nell’area delle Alpi Sud-Orientali. A tal fine sono state proposte delle relazioni empiriche che stimano i parametri del moto in funzione della magnitudo, della distanza dall’epicentro e della classificazione geologica del suolo; successivamente tali relazioni sono state usate per calibrare il software ShakeMaps con il fine di generare in tempo reale le mappe di scuotimento del terreno per la regione Friuli-Venezia Giulia. Le GMPEs (Ground Motion Predictive Equations) per PGA, PGV e SA sono state calcolate nell’area delle Alpi Sud-Orientali utilizzando registrazioni del moto forte del terreno. Sono state selezionate 900 forme d’onde accelerometriche filtrate tra 0.1 Hz e 30 Hz; la distanza epicentrale varia tra 1 km a 100 km, mentre la magnitudo locale, opportunamente calibrata confrontando diversi cataloghi, varia in un intervallo relativamente ampio (3.0 <= ML <= 6.3). Sono stati testati diversi modelli di attenuazione e il miglior risultato è stato individuato utilizzando specifici criteri di valutazione derivanti da considerazioni di carattere statistico (valore di R2, uso dell’ANOVA test, analisi dei residui). I coefficienti del modello finale sono stati determinati oltre che da ML, dalla distanza epicentrale e dagli effetti dovuti al sito, anche dalla saturazione della magnitudo, dalla correlazione tra magnitudo e distanza e dagli effetti di “near-source”. I coefficienti delle GMPEs sono stati calcolati per le componenti verticali ed orizzontali (rappresentata sia con la componente maggiore sia con la somma vettoriale delle due componenti); la tecnica dell’analisi dei gruppi ha permesso di ridurre l’incertezza finale sulle relazioni empiriche. Il confronto con i risultati ottenuti precedentemente evidenzia come le relazioni ottenute in questa tesi abbiano una maggiore attenuazione a basse magnitudo e a grandi distanze; risultati analoghi sono stati ottenuti per le relazioni ricavate dai dati registrati in tutta l’Italia Settentrionale. L’evoluzione recente delle reti sismiche rende oggi disponibile una grossa mole di dati acquisiti in tempo reale, per cui risulta fattibile stimare velocemente lo scuotimento del terreno tramite mappe; il software “ShakeMap” è stato adattato alle Alpi Sud-Orientali implementato allo scopo di ottenere una stabile interfaccia con il sistema di acquisizione dati “Antelope” che garantisca l’estrazione dei parametri del moto dalle forme d’onda e la creazione delle mappe di scuotimento entro 5 minuti dall’evento sismico. Questa procedura richiede una fitta e uniforme distribuzione spaziale degli strumenti di registrazione sul territorio e una classificazione geologica del suolo fatta usando le velocita’ medie, Vs30, dei primi 30m del mezzo immediatamente sotto gli strumenti. La classificazione geologica del suolo prevede la suddivisione in tre categorie (suolo rigido, suolo addensato e suolo soffice) mentre i coefficienti di amplificazione sono stati calcolati usando le relazioni proposte da Borcherdt (1994). Le relative mappe vanno calcolate usando le GMPEs e le relazioni empiriche che legano il moto del terreno all’intensità macrosismica, basate ambedue su dati registrati nella regione alpina. Le GMPEs discusse in precedenza sono state inserite nel software “ShakeMap” per la produzione delle mappe di scuotimento in tempo reale e quasi-reale nell’Italia Nord-Orientale. Per valutare l’effetto della densità di stazioni sulle mappe di scuotimento sono stati calcolati dei sismogrammi sintetici relativi al terremoto di Bovec 2004 variando il passo di griglia e la geometria dei ricevitori. I risultati ottenuti indicano come una distribuzione fitta e uniforme di strumenti sul territorio e una scelta accurata delle dimensioni della griglia dei ricevitori siano cruciali per calibrare le mappe di scuotimento in una ben determinata area geografica. Le mappe di scuotimento del suolo sono state generate per otto terremoti avvenuti nell’area considerata negli ultimi 30 anni; inoltre per gli eventi del Friuli 1976 e Bovec 1998 è stato utilizzato il modello di faglia finita con i parametri di sorgente stimati in precedenti studi. La validazione del modello è stata fatta calcolando il misfit tra le intensità macrosismiche osservate (catalogo DBMI04) e quelle “strumentali” che sono state ottenute dai sismogrammi sintetici tramite relazioni empiriche tra moto del suolo ed intensità. L’analisi è stata fatta per i terremoti del Cansiglio (1936), del Friuli (1976) e di Bovec (1998). I sismogrammi sintetici sono stati calcolati ad una frequenza massima di 10 Hz applicando il modello della riflettività; i parametri del moto sono stati estratti dai segnali sintetici calcolati nelle attuali stazioni di registrazione e successivamente sono state generate le mappe di scuotimento. L’intensità macrosismica “strumentale” è stata ricavata applicando diverse relazioni; il minor misfit è stato ottenuto usando le relazioni proposte da Kästli and Fäh (2006) per tutti e tre i terremoti considerati, il che sembra validare il nostro modello di Shake Maps.
The aim of this PhD thesis is to estimate ground motions in the South-Eastern Alps area. For this purpose we purposed empirical relationships that estimate the ground motion parameters as function of the magnitude, the epicentral distance and the soil geological characterization. Later on these relationships are used to calibrate the ShakeMaps software to generate ground motion shake maps in real time for the Friuli-Venezia Giulia region. The GMPEs (Ground Motion Predictive Equations) for PGA, PGV and SA are computed in the South-Eastern Alps area using strong motion observations. 900 accelerometric waveforms are selected and filtered between 0.1 Hz and 30 Hz; the epicentral distance varies from 1 km to 100 km, while the local magnitude, calibrated by comparison with various catalogues, varies in a relatively wide range (3.0 <= ML <= 6.3). Various attenuation models are tested and the best result is selected by the adoption of specific evaluation criteria derived from statistical considerations (R2 value, ANOVA test, residuals analysis). The coefficients of the final model are determined from ML, the epicentral distance, the site effects, the magnitude saturation, the correlation between the distance and the magnitude and the near-source effects. The coefficients of the GMPEs are computed from vertical and horizontal components (the latter represented both as the largest horizontal component and the vectorial addiction); the cluster analysis reduces the final uncertainties on the empirical relations. The comparison with the previous results evidences that the obtained relationships are characterized by a strong attenuation at low magnitudes and large distances. Similar results are obtained for the relationships derived from data recorded all over Northern Italy. The recent evolution of the seismic networks provides a large number of data, available in real time, so it is possible to quickly estimate shake maps. The “ShakeMap” software has been adapted to the South-Eastern Alps region and implemented to obtain a stable interface with the “Antelope” acquisition system in order to extract the ground motion parameters from the waveforms and the generation of the shake maps within 5 minutes from the earthquake occurrence. This procedure requires a dense and uniform spatial distribution of the recording instruments in the field and a geological classification of the soil derived from the average velocities of the S waves in the first 30m below the recording instruments (Vs30). In the geological classification the soil is divided into three classes (bedrock, stiff soil and soft soil), and the amplification coefficients are computed using the relationships proposed by Borcherdt (1994). The related maps are generated using the GMPEs and the empirical relations that predict the macroseismic intensity from the ground motion, both derived from data observed in the Alpine region. The GMPEs that are obtained in this thesis are inserted in the ShakeMap software to generate shake maps in real time or quasi real time in North-Eastern Italy. To evaluate the effects of the station coverage on the shake maps, synthetic seismograms are computed for the Bovec 2004 earthquake by varying the grid size and the network geometry. The results indicate that a dense and uniform spatial distribution in the field and a careful choice of the grid size are crucial to calibrate the shake maps in a given geographical area. The shake maps are generated for eight earthquakes occurred in the studied area in the last 30 years. Furthermore, the finite-fault model is utilized for the seismic events of the Friuli 1976 and Bovec 1998 selecting the source parameters proposed in previous studies. The model validation is done computing the misfit value between the observed macroseismic data (DBMI04 catalogue) and the “instrumental” intensities that are obtained from the synthetic seismograms using empirical relationships between the ground motion and intensity. This analysis has been done for the earthquakes of Cansiglio (1936), Friuli (1976) and Bovec (1998). The synthetic seismograms are calculated for an upper cutoff frequency of 10 Hz applying the reflectivity model. The ground motion parameters are extracted from synthetic signals computed at the presently operating seismic stations and the shake maps are generated. The macroseismic intensity is derived from various relationships; the lowest misfit is obtained using the relation proposed by Kästli and Fäh (2006) for all considered seismic events and this seem to validate our Shake Maps model.
XX Ciclo
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Martin, Stacey L. "Cartography, Discourse, and Disease: How Maps Shape Scientific Thought about Disease." unrestricted, 2005. http://etd.gsu.edu/theses/available/etd-04222005-094353/.
Повний текст джерелаTitle from title screen. Jeremy Crampton, committee chair; Michael Eriksen, Dona Stewart, committee members. Electronic text (94 p. : ill., maps (some col.)) : digital, PDF file. Description based on contents viewed July 10, 2007. Includes bibliographical references (p. 88-94).
Motte, Naren. "A STUDY TO EVALUATE NON-UNIFORM PHASE MAPS IN SHAPE MEMORY ALLOYS USING FINITE ELEMENT METHOD." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3986.
Повний текст джерелаInan, Tolga. "3d Face Recognition With Local Shape Descriptors." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613835/index.pdf.
Повний текст джерелаMoreira, José Antonio da Silva. "Mapas perceptuais e variações na participação de mercado." reponame:Repositório Institucional do FGV, 2006. http://hdl.handle.net/10438/2267.
Повний текст джерелаA questão do posicionamento de marcas é central ao processo de gerenciamento de marketing, pois produtos e serviços são adquiridos em grande parte em função da imagem que constroem na mente dos consumidores e clientes. Este trabalho busca explorar as relações existentes entre posicionamento de marca, preferências dos indivíduos e comportamento de compra através do tempo. Mais especificamente, ele se propõe a examinar as relações entre distância de uma marca ao ponto ideal num mapa perceptual e sua participação de mercado, e o quanto mudanças nessa distância através do tempo são acompanhadas de ganhos ou perdas de participação de mercado. Nessa tarefa são utilizadas técnicas de análise multivariada como o escalonamento multidimensional, a fim de elaborar os mapas perceptuais, e o mapeamento de preferências, a fim de localizar pontos ideiais nos mapas elaboradas. Também é utilizada a técnica de análise procrusteana, no processo de comparação de diferentes mapas perceptuais. Uma vez determinadas as distâncias das marcas ao ponto ideal e suas variações entre dois momentos no tempo, tais medidas são correlacionadas às participações de mercado das marcas, e suas variações. Os resultados obtidos no estudo empírico indicam que a variável 'distância ao ponto ideal no mapa perceptual' é boa candidata a um indicador de participação de mercado, presente e futura. No entanto, esta distância não se mostra um bom indicador das variações na participação de mercado propriamente ditas. Outro resultado interessante diz respeito ao conceito de equilíbrio entre a ordenação das marcas em função das distâncias ao ponto ideal e ordenação das marcas em função da participação de mercado, sugerindo que quando existe uma discordância nestas ordens, as participações de mercado das mrcas tendem a mudar na direção de reduzir este desequilíbrio.
The matter of brand positioning is central to the process of marketing management, as products and services are purchased a great deal due to the image they build in consumers and clients minds. This work aims to explore the relationships that exist between brand positioning, subject’s preferences and buying behavior across a period of time. More specifically, it proposes itself to examine the relationships between distance of a brand to the ideal point in a perceptual map and its market share, and to what extent changes in the distance of the brand to the ideal point are followed by gains or losses in market share. In this task, multivariate analysis techniques are employed, such as multidimensional scaling, in order to build the perceptual maps, and preference mapping, in order to determine the location of ideal points in the maps. Procrustean analysis is also employed in the process of comparing individual maps to each other. Once determined the distances of brands to the ideal point and its changes across two points in time, these measures are compared to the market share of these brands, and its changes. The results from the empirical study indicate that the variable “distance to the ideal point in a perceptual map” is a good indicator of market share, present and future. However, this distance does not represent a good indicator of the market share changes themselves. Another interesting result relates to the concept of equilibrium between ordering of brands according to distances to the ideal point, and ordering of brands according to market share, suggesting that, when there is disagreement between these two orderings, the market share of the brands tend to shift towards a reduction of this disequilibrium.
Altizer, Roger Alan Jr. "A grounded legal study of the breakdown of modders' relationships with game companies or legal threats shake moral beds." Thesis, The University of Utah, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3563390.
Повний текст джерелаThis dissertation utilizes law and society research, as well as communication advocacy, to frame analysis and offer an extra-legal solution to conflicts between modders, fans who create new content from existing videogames, and game companies. It utilizes grounded theory and the traditional legal adversarial documentary method to abstract and analyze conflict caused by a cease and desist (C&D) letter sent to Kajar Laboratories concerning Chrono Trigger: Crimson Echoes – Kajar's mod to Square Enix's Chrono Trigger. Through qualitative analysis of websites, forum posts, and blog comments about the C&D this dissertation discovers the grounded theory Legal Threats Break Moral Communities. Utilizing the grounded theory and legal argumentation a critique is made of proposed legal solutions. A nonlegal solution to ameliorate future conflict is then suggested as a means to satisfy both the needs of modders and game companies.
In analyzing the conflict this dissertation illustrates how the threat of law stops modders, disrupts the community, and chills future mods. This dissertation reinforces a regulatory understanding of copyright law arguing limited monopolies on intellectual property serve to advance the arts and sciences. Modding, like many forms of participatory culture, promotes valuable science, technology, engineering, and math through self-learning. Mods promote the original games while also generating new art. The dissertation also shows that both regulatory and proprietary interpretations of copyright law benefit from modding.
Through critique of status quo solutions and analysis of a Microsoft exemplar this dissertation suggests a generic game content usage guide as an extra-legal, feasible solution that advances the goals of all parties involved without requiring legal intervention.
Cho, Kyung Jin. "Quantification of the normal patellofemoral shape and its clinical applications." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80285.
Повний текст джерелаENGLISH ABSTRACT: The shape of the knee’s trochlear groove is a very important factor in the overall stability of the knee. However, a quantitative description of the normal three-dimensional geometry of the trochlea is not available in the literature. This is also reflected in the poor outcomes of patellofemoral arthroplasty (PFA). In this study, a standardised method for femoral parameter measurements on three-dimensional femur models was established. Using software tools, virtual femur models were aligned with the mechanical and the posterior condylar planes and this framework was used to measure the femoral parameters in a repeatable way. An artificial neural network (ANN), incorporating the femoral parameter measurements and classifications done by experienced surgeons, was used to classify knees into normal and abnormal categories. As a result, 15 knees in the database were classified by the ANN as being normal. Furthermore, the geometry of the normal knees was analysed by fitting B-spline curves and circular arcs on their sagittal surface curves to prove and reconfirm that the groove has a circular shape on a sagittal plane. Self-organising maps (SOM), which is a type of ANN, was trained with the acquired data of the normal knees and in this way the normal trochlear geometry could be predicted. The prediction of the anterior-posterior (AP) distance and the trochlear heights showed an average agreement of 97 % between the actual and the predicted normal geometries. A case study was conducted on four types of trochlear dysplasia to determine a normal geometry for these knees, and a virtual surface reconstruction was performed on them. The study showed that the trochlea was deepened after the surface reconstruction, having an average trochlea depth of 5.5 mm compared to the original average value of 2.9 mm. In summary, this research proposed a quantitative method for describing and predicting the normal geometry of a knee by making use of ANN and the femoral parameters that are unaffected by trochlear dysplasia.
AFRIKAANSE OPSOMMING: Die vorm van die trogleêre keep is ’n belangrike faktor in patella-stabiliteit. Tog is ’n kwantitatiewe beskrywing van die normale driedimensionele geometrie van die troglea nog nie beskikbaar nie, wat duidelik blyk uit die swak uitkomste van patellofemorale artroplastie (PFA). In hierdie studie is ’n gestandaardiseerde metode vir die meting van femorale parameters op grond van driedimensionele femurmodelle ontwikkel. Die femurmodel is in lyn gebring met die meganiese en posterior kondilêre vlak, welke raamwerk gebruik is om die femorale parameters op ’n herhaalbare wyse te meet. Die normale knieë is geklassifiseer met ’n kunsmatige neurale netwerk (ANN), wat die femorale parameter-mate sowel as die chirurgiese klassifikasie ingesluit het, en 15 knieë is gevolglik as normaal aangewys. Die normaleknie-geometrie is ontleed deur B-latkrommes en sirkelboë op die sagittale oppervlak-kurwes aan te bring om te bewys en te herbevestig dat die keep uit ’n sirkelvorm op ’n sagittale vlak bestaan. Die ingesamelde data van die normale knieë is ingevoer by selfreëlende kaarte (SOM), synde ’n soort ANN, wat die navorser in staat gestel het om die normale trogleêre geometrie te voorspel. Die voorspelling van die anterior-posterior (AP) afstand en die trogleêre hoogtes toon ’n gemiddelde ooreenkoms van meer as 97 % tussen die werklike en voorspelde normale geometrie. ’n Gevallestudie is op vier soorte trogleêre displasie uitgevoer om die normale geometrie te voorspel en ’n oppervlakrekonstruksie daarop uit te voer. Hierdie studie het getoon dat die troglea ná oppervlakrekonstruksie verdiep was, met ’n gemiddelde trogleadiepte van 5.5 mm in vergelyking met die aanvanklike gemiddelde waarde van 2.9 mm. Hierdie navorsing het dus ’n metode aan die hand gedoen vir die kwantitatiewe beskrywing en voorspelling van normale geometrie met behulp van ANN sowel as met die femorale parameters wat nie deur die trogleêre displasie geraak word nie.
Gelfand, Lynn. "Tales, technology, and transformations how different media environments shape the structure, style, and content of folk narratives /." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3319906.
Повний текст джерелаTitle from PDF t.p. (viewed on May 11, 2009). Source: Dissertation Abstracts International, Volume: 69-08, Section: A, page: 3267. Adviser: Mary Ellen Brown.
Sacchi, Elena. "Constraining mass and shape of galaxy clusters through large scale structures." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7427/.
Повний текст джерелаBlackwell, Breyanna Marie. ""To Share or Not to Share:" A Study of an Individual's Self-Representation on Instagram in Accordance with Impression Management Theory." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etd/3257.
Повний текст джерелаNAGASAKA, KEN, KOJI TAMAKOSHI, KUNIHIRO MATSUSHITA, HIDEAKI TOYOSHIMA, and HIROSHI YATSUYA. "DEVELOPMENT AND VALIDITY OF THE JAPANESE VERSION OF BODY SHAPE SILHOUETTE: RELATIONSHIP BETWEEN SELF-RATING SILHOUETTE AND MEASURED BODY MASS INDEX." Nagoya University School of Medicine, 2008. http://hdl.handle.net/2237/10546.
Повний текст джерелаChristner, Rebecca. "The shape of things : magazine ads and the female body ideal." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/816.
Повний текст джерелаSmidt, Corwin Donald. "The spinning message how news media coverage and voter persuasion shape campaign agenda /." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1217332406.
Повний текст джерелаHuang, Ruqi. "Two contributions to geometric data analysis : filamentary structures approximations, and stability properties of functional approaches for shape comparison." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS559/document.
Повний текст джерелаMassive amounts of data are being generated, collected and processed all the time. A considerable portion of them are sampled from objects with geometric structures. Such objects can be tangible and ubiquitous in our daily life. Inferring the geometric information from such data, however, is not always an obvious task. Moreover, it’s not a rare case that the underlying objects are abstract and of high dimension, where the data inference is more challenging. This thesis studies two problems on geometric data analysis. The first one concerns metric reconstruction for filamentary structures. We in general consider a filamentary structure as a metric space being close to an underlying metric graph, which is not necessarily embedded in some Euclidean spaces. Particularly, by combining the Reeb graph and the Mapper algorithm, we propose a variant of the Reeb graph, which not only faithfully approximates the metric of the filamentary structure but also allows for efficient implementation and convenient visualization of the result. Then we focus on the problem of shape comparison. In this part, we study the stability properties of some recent and promising approaches for shape comparison, which are based on the notion of functional maps. Our results show that these approaches are stable in theory and potential for being used in more general setting such as comparing high-dimensional Riemannian manifolds. Lastly, we propose a pipeline for implementing the functional-maps-based frameworks under our stability analysis on unorganised point cloud data. Though our pipeline is experimental, it undoubtedly extends the range of applications of these frameworks
Beam, Michael A. "Personalized News: How Filters Shape Online News Reading Behavior." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1315716858.
Повний текст джерелаBarta, Jonna Lee. "Media Effects on the Body Shape Ideal and Bulimic Symptomatology in Males." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc2261/.
Повний текст джерелаFraser, Jocelyn. "Corporate responsibility and advocacy conviction: how the forces of passion and reason shape contemporary industrial issues /." Burnaby B.C. : Simon Fraser University, 2006. http://ir.lib.sfu.ca/handle/1892/2719.
Повний текст джерелаПерегудов, Олег Миколайович, Олег Николаевич Перегудов та Oleh Mykolaiovych Perehydov. "Моделирование физических процессов формирования аналитического сигнала секторных магнитных и времяпролётных масс-спектометров". Thesis, Изд-во СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/24866.
Повний текст джерелаДиссертационная работа посвящена разработке и апробации обобщённой модели формы пика для непосредственного извлечения количественной информации из аналитического сигнала сек- торных магнитных и времяпролётных масс-спектрометров. Математическая модель построена в аналитическом виде путём решения интегрального уравнения, описывающего процесс регистрации ионного тока пучка детектором масс-спектрометра. Модель позволяет учитывать эффекты изменения формы пика в зависимости от его положения на шкале масс, а также особенности распределения плотности ионов в поперечном сечении (или вдоль) пучка. Параметры обобщённой модели характеризуют реальные физические величины: площадь пика, положение пика на шкале масс, ширину и степень асимметрии распределения плотности ионов в поперечном сечении или вдоль пучка, а также некоторые аппаратные характеристики используемого детектора и масс-анализатора. На базе обобщённой модели разработана методика анализа изотопного состава образцов, основанная на вычислении площади пиков, которая может применяться, например, в случаях недостаточной разрешающей способности масс-спектрометра или при анализе многокомпонентных смесей. Предложены методики оценки качества фокусировки ионно- оптической системы секторного магнитного масс-спектрометра и измерения точной массы ионов, которые основаны на восстановлении первичной функции распределения плотности ионов в попе- речном сечении (или вдоль) пучка. Экспериментально показано, что на точность оценок формы аналитического сигнала существенно влияют переходные процессы детектора, а также эффекты уменьшения ширины профиля пучка при увеличении массы ионов. Для уменьшения этого влияния необходимо тщательно контролировать скорость сканирования масс- спектров секторных магнитных масс-спектрометров. Чёткий физический смысл параметров модели даёт возможность непосредственно исследовать физические процессы формирования ионов в источниках ионов времяпролётных масс-спектрометров. Результаты проведённого исследования впервые позволили создать программное обеспечение для автоматической регистрации и обработки экспериментальных масс-спектров, которое не требует вмешательства оператора в процесс извлечения количественных оценок аналитического сигнала. При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/24866
The thesis is devoted to the development and testing of the generalized mathematical model of the peak shape for direct extraction of the quantitative information from the analytical signal of sector magnetic and time-of-flight mass spectrometers in the tasks of automatic mass spectra processing. On the base of generalized model the analyzing method of isotopic composition was developed; the method presupposes the calculation of the peak area and could be applied, for example, in the cases of insufficient resolution of a mass spectrometer or for the analysis of the multicomponental mixtures. The methods of the focusing quality of an ion-optical system of a sector magnetic mass spectrometer to be estimated and accurate mass of ions to be measured were proposed. It was experimentally proved that the accuracy of the estimates of the analytical signal depends on the transient processes in the detector, and on the effects of beam profile narrowing as mass of ions increases. Distinct physical meaning of the model parameters allows physical processes of the ion formation in ion sources of time-of-flight mass spectrometers to be investigated directly. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/24866
Wang, Tao-Chin Lin. "Part I: Dispersion versus absorption (DISPA) line shape analysis. Part II: Ion trajectories and excitation techniques in fourier transform ion cyclotron mass spectrometry /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260135355759.
Повний текст джерелаVerma, Tarishi. "The Legitimacy of Online Feminist Activism: Subversion of Shame in Sexual Assault by Reporting it on Social Media." Bowling Green State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1617396334881314.
Повний текст джерелаMeans, Daniel Eric. "Identification of Physical Changes to a Steel Frame." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/246.
Повний текст джерелаCoertze, Sara Louise. "An investigation into the perceptions of youths in early adolescence concerning the role a child’s body shape plays in bullying." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/25635.
Повний текст джерелаDissertation (MA)--University of Pretoria, 2013.
Social Work and Criminology
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Cerniglia, Luca, Silvia Cimino, Michela Erriu, Stanislav Jezek, Carlos A. Almenara, and Renata Tambelli. "Trajectories of aggressive and depressive symptoms in male and female overweight children: Do they share a common path or do they follow different routes?" PLoS ONE, 2018. http://hdl.handle.net/10757/622524.
Повний текст джерелаLopes, Nahara Rodrigues Laterza. "Trauma craniano violento pediátrico : estratégias de avaliação e prevenção." Universidade Federal de São Carlos, 2017. https://repositorio.ufscar.br/handle/ufscar/9079.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
The present dissertation is composed of a compendium of four scientific papers with the common theme of prevention of abusive head trauma (AHT), a serious type of infant maltreatment. The first article describes a review of the Brazilian and international literature on the main strategies of AHT prevention. A total of 34 articles describing 20 initiatives to prevent AHT were selected, five of which aimed at reducing infant crying, three aimed at caregiver’s emotional regulation, and 12 aimed at raising parents and caregivers’ awareness on AHT. Among them, parental education about infant crying and risks of shaking a baby stands out for its empirical evidence. The second article describes the process of elaboration and assessment of validity evidence based on internal structure of the Attitudes towards an Infant Crying Scale, developed for evaluation of parental attitude towards the baby's crying during the first months of life. After exploratory factor analysis, the final version of the scale was composed of 50 items, divided into six components: Consequences of Shaking the Baby, Welfare of the Caregiver, Strategies Targeting the Baby, Strategies Targeting the Caregiver, Beliefs about Baby Care and Characteristics of Infant Crying. The scale appears to be promising with respect to the objective of evaluating the attitude of parents and caregivers about infant crying and in evaluating AHT prevention programs. The third study describes the evaluation of a brief intervention to increase knowledge on AHT among parents of children up to two years old. A total of 254 parents who attended pregnancy or puerperal groups in six municipalities in the State of São Paulo participated in the study. Participants were randomly assigned to one of two conditions: Experimental Group (EG) or a waiting list Control Group (CG). The intervention involved showing an educational video and reading a pamphlet on AHT. To measure parental knowledge, the Attitudes towards the Infant Crying Scale was used. An increase in participants' knowledge about consequences of shaking, caregiver’s wellbeing, caregiver strategies to deal with crying, beliefs about infant care and about characteristics of infant crying were observed in the EG at posttest. Finally, the fourth article describes the evaluation of a training program for Health Care professionals about AHT. The training consisted of a four-unit course (two hours per unit), in which the topics of family violence, child abuse, abusive head trauma and prevention strategies were addressed. A total of 13 professionals from Basic Health Units from a city in the State of São Paulo participated in the study. Participants were randomly divided into two groups: Experimental Group (EG) and a Wait-List Control Group (CG). The experimental design for the EG was pre-test - intervention - post-test - follow-up and for the CG was pre-test 1 - pre-test 2 - post-test - intervention. The Attitudes towards the Infant Crying Scale was used. After training, participants' knowledge about caregiver strategies to deal with crying related to caregiver and to baby and characteristics of infant crying increased for EG participants. The increase in knowledge about caregiver strategies to deal with crying related to caregiver and characteristics of infant crying was maintained at follow-up, suggesting the effectiveness of this training in increasing knowledge on AHT among health professionals.
A presente tese é composta por um compêndio de quatro artigos científicos que têm como temática comum a prevenção do trauma craniano violento (TCV), uma forma grave de maustratos contra bebês. O primeiro artigo descreve uma revisão da literatura nacional e internacional sobre as principais estratégias de prevenção do TCV. Foram selecionados 34 artigos que descreviam 20 iniciativas para prevenção do TCV, sendo que cinco tinham como objetivo reduzir o choro nos primeiros meses de vida, três visavam a regulação emocional do cuidador e 12 visavam aumentar a sensibilização de pais sobre esta forma de maus-tratos. Dentre estas estratégias, a educação parental sobre o choro nos primeiros meses de vida e os riscos de sacudir um bebê se destacou por suas evidências empíricas de efetividade. O segundo artigo descreve o processo de elaboração e investigação das evidências de validade com base na estrutura interna da Escala de Atitudes frente ao Choro do Bebê, desenvolvida para avaliação da atitude de pais frente ao choro do bebê nos primeiros meses de vida. Após análise fatorial exploratória, a escala ficou composta por 50 itens divididos em seis fatores, sendo eles: Consequências de Sacudir o Bebê, Estratégias para Bem-Estar do Cuidador, Estratégias para lidar com Choro relacionadas ao Bebê, Estratégias para lidar com o Choro relacionadas ao Cuidador, Crenças sobre o Cuidado do Bebê e Características do Choro do Bebê. A escala parece ser um instrumento promissor para avaliar a atitude de pais e cuidadores sobre o choro do bebê nos primeiros meses de vida e para ser utilizado na avaliação de programas de prevenção do TCV. O terceiro estudo que compõe a presente tese descreve a avaliação da eficácia de uma intervenção breve para o aumento de conhecimento sobre o TCV entre pais de crianças com até dois anos. Participaram do estudo 254 pais de crianças com até dois anos que frequentavam grupos de gestantes ou de puerpério em seis municípios do Estado de São Paulo. Os participantes foram divididos aleatoriamente em dois grupos: Experimental (GE) e Controle de Espera (GC), sendo que o delineamento experimental para o GE foi pré-teste – intervenção - pós-teste - follow-up e para o GC foi préteste 1 – pré-teste 2 – intervenção. A intervenção consistiu na exibição de um vídeo educativo e leitura de um panfleto sobre a SBS. Para avaliação do conhecimento foi utilizado a Escala de Atitudes Frente ao Choro do Bebê. Foi observado aumento do conhecimento dos participantes sobre as consequências de se sacudir o bebê, o bem-estar do cuidador, as estratégias para lidar com o choro do bebê relacionadas ao cuidador, as crenças sobre o cuidado do bebê e as características do choro do bebê nos primeiros meses de vida. Este aumento do conhecimento foi mantido após um mês da intervenção, sugerindo sua efetividade. Por fim, o quarto artigo descreve a avaliação de um curso de capacitação a profissionais da Atenção Básica em Saúde sobre o TCV. A capacitação consistiu em um curso de quatro módulos com duas horas de duração cada, em que foram abordadas as temáticas da violência intrafamiliar, maus-tratos infantis, trauma craniano violento e estratégias de prevenção. Participaram do estudo 13 profissionais de Unidades Básicas de Saúde de um município do Estado de São Paulo. Os participantes foram divididos aleatoriamente em dois grupos: Grupo Experimental (GE) e Grupo Controle de Espera (GC), de modo que o delineamento para o GE foi pré-teste – intervenção – pós-teste – follow-up e para o GC foi pré-teste 1 – pré-teste 2 - pós-teste – intervenção. Para avaliação do conhecimento dos profissionais foi utilizado a Escala de Atitudes Frente ao Choro do Bebê. Ao final da avaliação, foi observado aumento do conhecimento dos participantes sobre as estratégias para lidar com o choro do bebê relacionadas ao bebê e ao cuidador e as características do choro do bebê nos primeiros meses de vida. Foi observada a manutenção do aumento de conhecimento sobre as estratégias para lidar com o choro relacionadas ao cuidador e as características do choro do bebê, sugerindo a efetividade da capacitação em aumentar o conhecimento dos profissionais sobre o TCV.
FAPESP: 2012/25234-1
FAPESP: 2014/15300-2
Barros, Mário Ilídio Pinto Lima. "Mass customisation in the firniture design industry." Doctoral thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2015. http://hdl.handle.net/10400.5/10732.
Повний текст джерелаRomero, Joshua Paul. "The effects of priming body shape on men’s selective exposure to magazine advertising featuring models with ideal and non-ideal body shapes: A social comparison approach." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211985495.
Повний текст джерелаDoerfler, Amy M. "Part I: Mass for Full Orchestra and SATB Chorus Part II: Joseph Funk's A Compilation of Genuine Church Music (1832): An Analysis of Music and Methods." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310584998.
Повний текст джерелаDonders, Hanna Tiare. "The Relationship between Rock Mass Conditions and Alteration and Weathering of the Lower Hamersley Group Iron Formations, Western Australia." Thesis, University of Canterbury. Department of Geological Sciences, 2009. http://hdl.handle.net/10092/4458.
Повний текст джерелаMekaouche, Adel. "Conception et analyse d'un robot flexible à rigidité active au moyen d'un alliage à mémoire de forme." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22676/document.
Повний текст джерелаThe rigidity is one of the most important performance targets which is taken into account for the design of robotic systems. The control of the physical stiffness during industrial tasks is a scientific issue which is rapidly expanding in the context of the innovative design of highly polyvalent robots. The combination of a compliant robotic structure and a shape memory alloy (SMA) component is carried out in the aim of obtaining variable compliance maps over time and in the same workspace. SMAs are actually active materials with specific thermomechanical properties which can be used in this application. The considered structure has no internal degree of freedom, but the deformation of the arms allows the creation of a “Pseudo-Workspace” (PWS). This PWS varies as a function of the activated/non-activated state of the SMA component. The intersection of the two obtained PWSs represents the effector’s positions where it is possible to have different compliance values. Generated maps show interesting characteristics in the perspective of the design of polyvalent robots based on a new type of reconfigurability (change of material properties)
Deák, Jaromír. "Registrace fotografií do 3D modelu terénu." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2017. http://www.nusl.cz/ntk/nusl-363795.
Повний текст джерелаDalstad, Linnea, and Edona Maloku. "Hederskultur i ungdomslitteratur : – en analys av fyra skönlitterära böcker om hedersproblematik och hur de kan användas i skolundervisning." Thesis, Örebro universitet, Institutionen för humaniora, utbildnings- och samhällsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-67422.
Повний текст джерелаRivollier, Séverine. "Analyse d’image geometrique et morphometrique par diagrammes de forme et voisinages adaptatifs generaux." Thesis, Saint-Etienne, EMSE, 2010. http://www.theses.fr/2010EMSE0575/document.
Повний текст джерелаMinkowski functionals define set topological and geometrical measurements, insufficient for the characterization, because different sets may have the same functionals. Thus, other shape functionals, geometrical and morphometrical are used. A shape diagram, defined thanks to two morphometrical functionals, provides a representation allowing the study of set shapes. In quantitative image analysis, these functionals and diagrams are often limited to binary images and achieved in a global and monoscale way. The General Adaptive Neighborhoods (GANs) simultaneously adaptive with the analyzing scales, the spatial structures and the image intensities, enable to overcome these limitations. The GAN-based Minkowski functionals are introduced, which allow a gray-tone image analysis to be realized in a local, adaptive and multiscale way.The GANs, defined around each point of the spatial support of a gray-tone image, are homogeneous with respect to an analyzing criterion function represented in an algebraic model, according to an homogeneity tolerance. The shape functionals computed on the GAN of each point of the spatial support of the image, define the so-called GAN-based shape maps. The map histograms and diagrams provide statistical distributions of the shape of the gray-tone image local structures, contrary to the classical histogram that provides a global distribution of image intensities. The impact of axiomatic criteria variations is analyzed through these maps, histograms and diagrams. Thus, multiscale maps are built, defining GAN-based shape functions
Lopes, Nahara Rodrigues Laterza. "Trauma craniano violento: conhecimento parental e avaliação de material informativo." Universidade Federal de São Carlos, 2013. https://repositorio.ufscar.br/handle/ufscar/6038.
Повний текст джерелаUniversidade Federal de Sao Carlos
This dissertation is a compendium of four scientific papers. Each paper describes a stage of the study, with the final goal of evaluating the effectiveness of different materials to increase parents knowledge on abusive head trauma. The first paper describes a review of national and international literature, which aimed to give a current overview of abusive head trauma (AHT). According to the review, AHT can be defined as injury to the skull and intracranial contents to a child due to a sudden unintentional impact and/or a violent shaking. It occurs mainly with babies and children under 1 year of age and can result in serious consequences for children's development, including death. Although there are specific signs for this type of abuse, it can be mistaken for common child illnesses or accidental head trauma. Thus, it is essential that health professionals are trained for the correct diagnosis. One of the main factors associated with its occurrence is the baby crying, which highlights the need for intervention with parents in order to teach them about child development and safe strategies to deal with the baby. The second paper aimed to investigate the knowledge of newborn parents about some characteristics associated with AHT, such as the pattern of the infant crying in the first months of life, strategies to deal with the crying baby and the consequences of shaking a baby. The results indicated a lack of knowledge about the severity of shaking a baby, as well as a possible Brazilian belief that babies should not be left crying alone. In this sense, there is a need for these issues to be addressed in AHT prevention efforts. The third paper aimed to investigate the belief of Brazilian parents about corporal punishment to infants, and its possible relation with abusive head trauma. As opposed to the international literature, participants of this study did not consider shaking as an appropriate strategy to discipline the baby, agreeing more with this strategy when it aimed to sooth the baby. Furthermore, the results indicated that the caregivers evaluation about the strategy s harm potential seems to influence its adoption in discipline and soothing contexts. Finally, the last paper describes the evaluation of the effectiveness of three different informational materials to increase knowledge of Brazilian parents about this type of abuse. The materials consisted of a video on abusive head trauma, a pamphlet individually read on the AHT, and a video on child safety, unrelated to AHT and used for comparison purposes. The results suggest that reading the pamphlet could be a useful strategy in prevention programs, since it increased participants' knowledge about the severity of shaking a baby, as well as the likelihood of using strategies to distance themselves from the baby when stressed by the crying. Although less significant, the results of the group who watched the video on the AHT also indicated an increase in knowledge about the average number of daily hours of baby crying. It is hoped that the results found in this dissertation will guide future AHT preventive efforts in Brazil.
A presente dissertação foi escrita no formato de um compêndio de quatro textos científicos. Cada artigo descreve uma etapa do estudo, que teve como objetivo avaliar a eficácia de diferentes materiais informativos para aumentar o conhecimento de pais de recém-nascidos sobre o trauma craniano violento pediátrico. O primeiro artigo descreve uma revisão da literatura nacional e internacional, que teve como objetivo traçar um panorama atual do trauma craniano violento (TCV). De acordo com a revisão, o TCV pode ser definido como a lesão ao crânio ou ao conteúdo intracraniano de uma criança devido a um impacto brusco intencional e/ou a uma sacudida violenta. Ocorre principalmente com bebês e crianças menores de 1 ano de idade e pode resultar em consequências graves ao desenvolvimento infantil, incluindo a morte. Apesar de haver sinais específicos para esta forma de maus-tratos, eles podem se confundir com doenças comuns em crianças ou traumas cranianos acidentais. Deste modo, torna-se imprescindível o preparo clínico dos profissionais de saúde para o diagnóstico correto. Um dos principais fatores associados à sua ocorrência é o choro do bebê, destacando a necessidade de intervenção com pais no sentido de ensiná-los sobre desenvolvimento infantil e estratégias seguras para lidar com o bebê. O segundo artigo visou investigar o conhecimento de pais de recém-nascidos sobre algumas características associadas a esta forma de maus-tratos, tais como o padrão do choro do bebê nos primeiros meses de vida, as estratégias para lidar com o choro e as consequências de sacudi-lo. Os resultados indicaram um desconhecimento dos participantes sobre a gravidade de se sacudir um bebê, bem como uma possível crença brasileira de que os bebês não devem ser deixados chorando sozinho. Neste sentido, destaca-se a necessidade dessas questões serem contempladas nas ações de prevenção do TCV. O terceiro artigo objetivou investigar a crença de pais brasileiros sobre a punição corporal em bebês e sua possível relação com o trauma craniano violento. Diferentemente do que aponta a literatura internacional, os participantes do presente estudo não consideraram o sacudir como uma estratégia adequada para disciplinar o bebê, obtendo maior concordância quando avaliada em seu potencial tranquilizador. Além disso, os resultados indicaram que a avaliação que os cuidadores fazem do potencial prejudicial de determinada estratégia parece influenciar sua adoção no cuidado com o bebê, tanto para acalmá-lo, quanto para discipliná-lo. Por fim, o último artigo descreve a avaliação da eficácia de três materiais informativos diferentes para o aumento do conhecimento de pais brasileiros sobre essa forma de maus-tratos. Os materiais consistiram em um vídeo sobre o trauma craniano violento, um panfleto sobre o TCV e um vídeo sobre segurança infantil, que não abordava o TCV e foi utilizado como comparação. Os resultados sugerem que o e leitura individual do panfleto pode ser uma estratégia útil em programas de prevenção, uma vez que a mesma aumentou o conhecimento dos participantes sobre a gravidade de sacudir um bebê, bem como a probabilidade de utilizarem estratégias de se afastar do bebê, quando estressados pelo choro. Apesar de menos expressivos, os resultados do grupo que assistiu ao vídeo sobre o TCV também indicaram um aumento no conhecimento sobre o número médio diário de horas de choro do bebê. Espera-se que os resultados encontrados na presente dissertação possam fornecer embasamento para futuras ações de prevenção dessa forma de maus-tratos.
Avci, Onur. "Effects of Bottom Chord Extensions on the Static and Dynamic Performance of Steel Joist Supported Floors." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/29432.
Повний текст джерелаPh. D.
Manea, Vladimir. "Penning-trap mass measurements of exotic rubidium and gold isotopes for a mean-field study of pairing and quadrupole correlations." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112246/document.
Повний текст джерелаThe most complex nuclei are situated between the magic and the mid-shell ones, in regions known for sudden changes of the trends of nuclear observables. These are the so-called shape-transition regions, where the nuclear paradigm changes from the vibrational liquid drop to the static rotor. With few exceptions, nuclei in these regions are radioactive, with half-lives dropping into the millisecond range.Complementing the information obtained from the low-lying excitation spectrum, nuclear binding energies and mean-square charge radii are among the observables most sensitive to these changes of nuclear structure. In the present work, a study of the shape-transition phenomenon is performed by measurements of radioactive nuclides produced by the ISOLDE facility at CERN. The masses of the neutron-rich rubidium isotopes 98−100Rb and of the neutron-deficient gold isotopes 180,185,188,190,191Au are determined using the Penning-trap mass spectrometer ISOLTRAP. The mass of 100Rb is determined for the first time. Significant deviations from the literature values are found for the isotopes 188,190Au. A new experimental method is presented, using a recently developed multi-reflection time-of-flight mass spectrometer as a beam-analysis tool for resonance-ionization laser spectroscopy. The new method opens the path to measurements of atomic hyperfine spectra with ISOLTRAP, from which charge radii and electromagnetic moments of radioactive nuclides can be extracted. The properties of the studied nuclides map the borders of two prominent regions of quadrupole deformation, which constrain the fine balance between pairing and quadrupole correlations in the nuclear ground states. This balance is studied by the Hartree-Fock- Bogoliubov (HFB) approach. The sensitivity of the shape-transition phenomenon to the strength of pairing correlations is demonstrated. In particular, the strong odd-even staggering of charge radii in the mercury isotopic chain is shown to result in the HFB approach from the fine interplay between pairing, quadrupole correlations and quasi-particle blocking
Faust, Max. "Menstruation Regulation: A Feminist Critique of Menstrual Product Brands on Instagram." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/576.
Повний текст джерелаDupas, Germaine. "Etude structurale du kerogene de schistes bitumineux : gisement du maroc." Poitiers, 1988. http://www.theses.fr/1988POIT2279.
Повний текст джерелаLaubscher, Sydney. "MANGANESE UPTAKE IN RED MAPLE TREES IN RESPONSE TO MINERAL DISSOLUTION RATES IN SOIL." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1574431912056187.
Повний текст джерелаSILVA, Veralúcia Severina da. "Transferência de calor e massa em materiais com forma complexa via método da análise concentrada. Estudo de caso: secagem de materiais cerâmicos." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/930.
Повний текст джерелаMade available in DSpace on 2018-06-11T21:47:59Z (GMT). No. of bitstreams: 1 VERALÚCIA SEVERINA DA SILVA – TESE (PPGEP) 2016.pdf: 6421802 bytes, checksum: 9b42464393ac9c935bb0b5026ad45fc2 (MD5) Previous issue date: 2016-12-01
A secagem é um processo termodinâmico, em que há transferência simultânea de calor e a remoção da umidade de um material poroso. Os produtos argilosos quando expostos a uma secagem sem controle pode sofrer fissuras e deformações, reduzindo sua qualidade póssecagem. Este trabalho tem como objetivo estudar teórico e experimentalmente a transferência de calor e massa em sólidos com forma complexa com, com ênfase a secagem de materiais cerâmicos argilosos. Neste trabalho desenvolveu-se um modelo matemático para descrever as trocas de calor e massa durante o processo de secagem, utilizando o método da capacitância global em corpos vazados. A solução analítica das equações governantes foi feita usando o método de separação de variáveis. Foram realizados experimentos de caracterização química e terrmo-hídrica da argila, e secagem de materiais cerâmicos argilosos vazados e com formas não-convencionais, em diferentes temperaturas (60, 70, 80, 90 e 100ºC). Resultados da composição química e granulometria da argila, e cinéticos de perda de massa e aquecimento das peças cerâmicas são apresentados e analisados. Verificou-se que o processo de perda de umidade ocorre a uma velocidade mais baixa do que o aquecimento do material cerâmico, que a temperatura e forma do corpo afetam fortemente os fenômenos de transporte de calor e massa, que a secagem a baixa temperatura favorece a redução de problemas no material pós secagem e melhoramento na qualidade final, e que os números de Biot de transferência de calor e de massa influenciam diretamente no tempo que o produto atinge sua condição de equilíbrio. A comparação entre o teor de umidade e temperatura preditos pelo modelo matemático proposto e os dados experimentais permitiu a estimativa dos coeficientes de transferência de massa e calor na superfície do material, com boa precisão.
Drying is a thermodynamic process, in which there is simultaneous heat transfer and moisture removal of a porous material. Clay products exposed to drying without control may suffer cracks and deformations, reducing its quality post-drying. This work aims to study theoretical and experimental the drying of solids with complex shape. It was developed a mathematical model to describe heat and mass transfer during the drying process, using the global capacitance method of hollow bodies. The analytical solution of the governing equations was made using the variable separation method. It were realized experiments of chemical and thermo-hydric characterization of clay, and drying of hollow and non-conventional clay ceramic materials at different emperatures (60, 70, 80, 90 and 100ºC). Results of the chemical composition and granulometry, and mass loss and heating of ceramic parts are presented and analyzed. It was verified that the moisture loss process occurs at a lower velocity than the heating of the ceramic material, the temperature and body shape strongly affect heat and mass transport phenomena, drying at low temperature favors the reduction of the problems in the material post-drying and improvement in the final quality, and that Biot numbers of heat and mass transfer directly affect the time to the product to reach its equilibrium condition. Comparison between predicted and experimental moisture content and temperature permitted estimative of the convective heat and mass transfer coefficients at the surface of the material, with good precision.
Provenzano, Luigi. "On mass distribution and concentration phenomena for linear elliptic partial differential operators." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424499.
Повний текст джерелаIn questa tesi studiamo la dipendenza degli autovalori di operatori differenziali alle derivate parziali di tipo ellittico da perturbazioni della densità di massa su aperti dello spazio euclideo N-dimensionale. In particolare, proviamo risultati di dipendenza continua e analitica degli autovalori di operatori poliarmonici e li applichiamo ad alcuni problemi di ottimizzazione. Per provare i risultati di analiticità, adoperiamo una tecnica generale sviluppata da P.D. Lamberti e M. Lanza de Cristoforis, ottenendo formule per i differenziali di Frechet degli autovalori che ci permettono di caratterizzare le densità critiche sotto il vincolo di massa fissata. Inoltre, enunciamo un `principio di massimo' per la classe di problemi di ottimizzazione considerata. In seguito, prendiamo in esame una famiglia particolare di densità di massa, ovvero densità che si concentrano al bordo degli aperti dove i problemi differenziali sono definiti. In questo caso, studiamo il comportamento asintotico degli autovalori e delle autofunzioni dei problemi di Neumann per l'operatore di Laplace e l'operatore biarmonico quando la massa si concentra al bordo. Proviamo in entrambi i casi, adattando una tecnica generale sviluppata da J.M. Arrieta, che gli autovalori e le autofunzioni del problema di Neumann convergono agli autovalori e alle autofunzioni di appropriati problemi limite di tipo Steklov. In particolare, il problema di tipo Steklov per l'operatore biarmonico così formulato viene introdotto per la prima volta in questa tesi, dove ne vengono poi studiate alcune proprietà. Nel caso dell'operatore di Laplace, proviamo la validità di un'espansione asintotica degli autovalori e delle autofunzioni del problema di Neumann fino al primo ordine ed otteniamo formule esplicite per i primi termini delle espansioni. Per ottenere questi risultati adattiamo al nostro problema delle tecniche di analisi asintotica utilizzate da M.E. Perez e S.A. Nazarov per lo studio di sistemi vibranti con masse concentrate in punti o lungo certe curve. Per quanto riguarda il problema di Steklov per l'operatore biarmonico, consideriamo anche il problema della dipendenza degli autovalori dal dominio. Utilizzando sempre la tecnica generale sviluppata da P.D. Lamberti e M. Lanza de Cristoforis, proviamo che le palle sono domini critici per tutti gli autovalori. Inoltre, adattando l'argomento di F. Brock e R.Weinstock per il problema di Steklov per l'operatore di Laplace, riusciamo a mostrare che la palla massimizza il primo autovalore positivo del problema di Steklov per l'operatore biarmonico tra tutti gli aperti limitati di misura fissata. Proviamo infine una versione quantitativa di questa disuguaglianza isoperimetrica, mostrando poi che l'esponente che compare nella disuguaglianza è ottimale.
Akbar, Muhammad Khalid. "Transport Phenomena in Complex Two and Three-Phase Flow Systems." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4897.
Повний текст джерелаMeunier-Christmann, Claude. "Geochimie organique de phosphates et schistes bitumineux marocains : etude du processus de phosphatogenese." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13200.
Повний текст джерелаSchwartz, Jean-Luc. "Représentations auditives de spectres vocaliques." Grenoble INPG, 1987. http://www.theses.fr/1987INPG0086.
Повний текст джерелаPerakis, Nikolaos. "Separation et detection selective des composes soufres dans les fractions lourdes des petroles : geochimie des benzo (b) thiophenes." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13093.
Повний текст джерелаDomange, Jocelyn. "Étude et exploitation de bolomètres de nouvelle génération à électrodes concentriques pour la recherche de matière noire froide non-baryonique dans l’expérience Edelweiss II." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112169/document.
Повний текст джерелаEDELWEISS is a direct non-baryonic cold dark matter detection experiment in the form of weakly interacting massive particles (also known as WIMPs), which currently constitute the most popular candidates to account for the missing mass in the Universe. To this purpose, EDELWEISS uses germanium bolometers at cryogenic temperature (20 mK approximately) in the Underground Laboratory of Modane (LSM) at the French-Italian border. Since 2008, a new type of detector is operated, equipped with concentric electrodes to optimize the rejection of surface events (coplanar-grid detectors). This thesis work is divided into several research orientations. First, we carried out measurements concerning charge collection in the crystals. The velocity laws of the carriers (electrons and holes) have been determined in germanium at 20 mK in the <100> orientation, and a complete study of charge sharing has been done, including an evaluation of the transport anisotropy and of the straggling of the carriers. These results lead to a better understanding of the inner properties of the EDELWEISS detectors. Then, studies relating to the improvement of the performances were carried out. In particular, we have optimized the space-charge cancellation procedure in the crystals and improved the passive rejection of surface events (β). The fiducial volume of the detectors has been evaluated using two X-ray lines from cosmically activated radionuclides: 68Ge and 65Zn. Lastly, an exhaustive study of the low energy spectra has been carried out, which makes it possible to develop a systematic analysis method for the search of low-mass WIMPs in EDELWEISS
Hýl, Petr. "Slovinské národní divadlo v Lublani." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2009. http://www.nusl.cz/ntk/nusl-215582.
Повний текст джерелаRen, Jing. "Shape Matching and Map Space Exploration via Functional Maps." Diss., 2021. http://hdl.handle.net/10754/670353.
Повний текст джерелаSilson, E. H., Declan J. McKeefry, J. Rodgers, A. D. Gouws, M. Hymers, and A. B. Morland. "Specialized and independent processing of orientation and shape in visual field maps LO1 and LO2." 2013. http://hdl.handle.net/10454/6191.
Повний текст джерелаWells, Rachel Kristen. "Microstructures and Rheology of a Limestone-Shale Thrust Fault." 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-12-8835.
Повний текст джерелаBüchsenschütz, Kai. "Struktur und räumlich-zeitliches Expressionsverhalten von Kaliumkanälen bei Zea mays." Doctoral thesis, 2005. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-17522.
Повний текст джерелаNew potassium channels of Zea mays that belong to the Shaker-family were isolated and characterized. Their partial role and interaction with other channel members of the same family was focused on