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1

Dukes, Thomas William. "Self-understanding as a protective factor: adolescent identity consolidation and the nurturing of resilience." Thesis, Boston University, 2009. https://hdl.handle.net/2144/31640.

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Thesis (Ed.D.)--Boston University
PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.
This study was guided by two principal goals. First, the intent of the researcher was to contribute substantively to the theoretical literature on the study of resilience. Next, an intervention program based on these theoretical contributions was developed, implemented, and evaluated to gauge the relevance of emerging understandings for clinical practice. To conduct this line of inquiry, and in the hope of helping those at risk, the intellectual context of life span developmental psychology, in which all further comments have been grounded, is framed. Next, an understanding of what is meant by resilience and its related constructs is conveyed. Following, the concept of self-understanding is discussed as a potential mediating or protective factor in the service of resilience. The case has been made for conceptualizing the processes of resilience and the role of self-understanding as part of the more basic and universal human drive to create meaning. Following this discussion, a plan of inquiry is described that focuses on an intervention designed to enhance self-understanding among a population of adolescents in the service of resilience. In particular, within the context of a comprehensive developmental counseling program consultation, a psychoeducational group intervention targeting adolescents facing a significant educational transition was the focus of this descriptive study. Findings indicate that over the time period during which the group intervention was implemented, student participants tended to show similarly improved scores on the Self-Perception Inventory, resulting in similar growth trajectories. While none of the fixed predictors (e.g., gender, ethnicity, or scholarship/nonscholarship) accounted in a statistically significant way for the variation observed, initial status was shown to be a statistically significant predictor. These findings suggest that further research may be warranted to explore the efficacy of the overall developmental counseling program as well as the specific intervention that was the focus of the study. In the concluding discussion, original theoretical contributions have been reevaluated, and recommendations for further study, including empirical, descriptive, and theoretical efforts, are put forth.
2031-01-01
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2

Nam, Sookie. "Settling and sedimentation behavior of fine-grained materials." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/42677.

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Channeling has already been an observed phenomenon that often occurs during settling and sedimentation processes of finer materials. However, it has been regarded as a minor factor affecting settling process, e.g. settling velocity or consolidation rate. In this study, settling behaviors of talcs, kaolins and attapulgite were reviewed by experiments with small and large settling columns with special focus on channel formation during sedimentation. The large settling column is equipped with twenty eight measuring points, which are connected to pressure transducers for measuring pore pressure changes during settling. Throughout the study, channel formation was observed and related to the experimental conditions affecting it. The excess pore pressure changes were measured during the large column tests. Channels occurred under flocculation in zone settling and also in consolidation zones; pressure drop was observed near channels in some cases. It was apparent that channels work as a facilitator to dissipate the excess pore water pressure. It is summarized that not only initial concentration but also the material properties, such as specific gravity and shape of particles, can affect the channel formation.
Master of Science
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3

Hoe, Tian Hee. "The prediction via a mathematical model of the "primary" self-weight consolidation curve of silt particles during zone settling." Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-11152001-103032.

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4

Demers, Bonin Michaël. "Étude de la consolidation d’un résidu minier épaissi dans l'optique de son utilisation comme fondation de bermes de rehaussement de parc à résidus miniers." Mémoire, Université de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/5288.

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Résumé : Ce projet de recherche s’inscrit dans le cadre d’une requête de l’entreprise partenaire, Golder Associés Ltée. Cette dernière s’interrogeait sur la consolidation d’un résidu minier épaissi, une approche de plus en plus utilisée dans le domaine de la gestion des aires de déposition des résidus miniers. Ce type de matériau est épaissi jusqu’à un point où une fois déposé, il ne connaît pas ou peu de ségrégation, rejette moins d’eau et possède généralement un angle de repos plus grand que les résidus conventionnels. L’intérêt de cette approche dans le cadre de cette étude consiste en la réduction des empreintes des aires de déposition par la combinaison des résidus épaissis et des rehaussements par l’amont. La consolidation de ce type de résidus a été peu étudiée depuis leur développement. En rassemblant les observations rapportées dans les écrits scientifiques, il est possible de ressortir que le mécanisme physique générant la dissipation des pressions interstitielles en excès et le tassement au moment de la déposition est essentiellement la consolidation sous le poids propre. Un essai en colonne de tassement instrumentée de transmetteurs de pression a permis l’étude de la consolidation sous le poids propre en termes de dissipation des pressions d’eau avec une grande précision. Un essai en consolidomètre a permis de définir la compressibilité du matériau durant cette étape de consolidation sous le poids propre avec une précision acceptable. Les résultats expérimentaux ont été reproduits à l’aide du modèle CS2 suite à quelques ajustements des relations constitutives. CS2 considère la consolidation sous le poids propre et les grandes déformations d’une déposition instantanée. Le rapprochement entre le modèle CS2 et les résultats expérimentaux est sans équivoque et permet de prendre connaissance de certains aspects de la consolidation sous le poids propre qui étaient peu détaillés jusqu'à maintenant dans les écrits scientifiques. L’importance de la consolidation sous le poids propre et son intégration dans le plan de déposition proposé par l’entreprise partenaire a été évaluée à l’aide du logiciel SIGMA/W. Les capacités de ce logiciel ont tout d’abord été étudiées en 1D. Ces vérifications visaient la considération de la consolidation sous le poids propre tout en examinant la formulation de SIGMA/W pour un remplissage progressif. Ces simulations 1D ont pu être comparées aux résultats du modèle CS4, un modèle calqué sur CS2 qui permet un remplissage progressif. Finalement, une campagne de simulation à grande échelle en 2D visant la simulation d’une aire de déposition de résidus épaissis a permis d’examiner les éléments importants dans la considération de ce mécanisme à l’aide du logiciel commercial SIGMA/W. Il en ressort que le logiciel SIGMA/W n’est pas le logiciel idéal pour simuler la déposition progressive de résidus épaissis en considérant la consolidation sous le poids propre et ce pour maintes raisons. Les résultats de cette étude viennent situer l’importance de la consolidation sous le poids propre dans les résidus épaissis et fournissent une base solide pour la compréhension et la modélisation numérique de ce mécanisme en 1D ou en 2D. // Abstract : This research project was done through an academic partnership between the Université de Sherbrooke and Golder Associés Ltée., a mining consultant from Montréal. The latter had interrogations at regarding consolidation mechanisms controlling thickened tailings deposition, a relatively new approach in tailings management. This type of material are thickened to a point from which they don’t show any segregation, they expulse less water and can be stacked with a greater beach angle than conventional tailings. The combination of this method with the upstream raising method results in the possible reduction of the footprint of the tailings disposal facility. Thickened tailings have not been studied extensively. However, by gathering available information from the existing technical literature, it is apparent that the sole mechanism creating both a dissipation of excess pore water pressure and a settlement following deposition is self-weight consolidation. A settling column monitored with pressure transmitters was used to define accurately the self-weight consolidation process in terms of dissipation of excess pore water pressure. A consolidometer setup was used to define the compressibility of this material during the self-weight consolidation. Experimental results were reproduced with the numerical model CS2 which considers the self-weight consolidation and large strains. Following a few adjustments of the constitutive relationships, the numerical reproduction is clear; it represents closely the experimental results. This made it possible to document certain elements that were not well defined in the technical literature about the self-weight consolidation. The use of the finite element model SIGMA/W and its capability to consider self-weight consolidation within a tailings deposition scheme were evaluated. Firstly, the model capabilities were verified through 1D simulations that helped to document the method to adopt to model the self-weight consolidation. The formulation of SIGMA/W related to the sequential tailings placement was also studied during this phase. A comparison with the model CS4 was also performed. Secondly, the tailings disposal facility was modeled at large scale by including the sequential tailings placement and the consideration of the self-weight consolidation for each deposition. This process allowed evaluating the capabilities of SIGMA/W in large scale analysis. It appears that this numerical tool presents some numerical weaknesses especially with regards to the sequential tailings placement. Moreover, the results of this study place the self-weight consolidation of hard rock thickened mine tailings as an important mechanism that needs to be considered in a deposition scheme as it controls the short term displacements of the impoundment. Finally, they document the self-weight consolidation mechanism and provide reliable information for modelling this process in one or two-dimensional numerical analysis.
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5

AMARAL, THIAGO BOTTINO DO. "FROM THE RIGHT TO SILENCE TO THE PRIVILEGE AGAINST SELF-INCRIMINATION: THE SUPREME COURT AND THE CONSOLIDATION OF THE CRIMINAL PROCEDURAL GUARANTEES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14970@1.

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Анотація:
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
A presente tese de doutorado tem por objetivo analisar criticamente a construção pelo Supremo Tribunal Federal de significados para o direito ao silêncio – ou melhor, a garantia de vedação de auto-incriminação – que constitui uma garantia processual penal de assento constitucional. Foram identificados e analisados todos os acórdãos proferidos pelo Supremo Tribunal Federal acerca do tema a fim de examinar os argumentos utilizados na fundamentação das decisões que delimitam o conteúdo da referida garantia,, desde a promulgação da Constituição de 1988 até o dia 31 de dezembro de 2007, para identificar como o Supremo Tribunal Federal construiu um significado que fosse aquém ou além da simples interpretação gramatical da Constituição. A escolha da vedação de autoincriminação como objeto de estudo é resultado do reconhecimento de que essa garantia desempenha um papel estruturante na construção de um sistema punitivo compatível com um Estado democrático de direito. O exame dos julgados indica que esse conteúdo foi construído por meio de diferentes recursos, como o uso de precedentes jurisprudenciais de cortes internacionais e a interpretação a partir dos tratados internacionais de direitos humanos. Mas, sobretudo, o Supremo Tribunal Federal lançou mão do uso de argumentos principiológicos como forma de aproximar o texto constitucional (e o infraconstitucional) dos valores que animam um Estado democrático de direito.
This doctoral thesis aims to examine and criticize the construction by the Brazilian Supreme Court (Supremo Tribunal Federal, STF) of a concept to the right to silence – or rather, the privilege against self-incrimination – which is a criminal procedure guarantee, established in the Brazilian Constitution. All judgments of the Brazilian Supreme Court related to the privilege, since the promulgation of the Constitution (October 5, 1988) until December 31, 2007, were identified and analyzed, seeking to identify in what form the Brazilian Supreme Court defined that privilege (behind or beyond simply grammatical interpretation of the Constitution). Choosing the privilege against selfincrimination as the object of study results of the recognition that this right plays a structural role in the construction of a punitive system compatible with a democratic rule of law. Examination of all cases indicates that the privilege content was built through various resources, such as international courts decisions and international human rights treaties. But above all, the Brazilian Supreme Court has used principles arguments as a way to bring the constitutional text closer to the values that animate a democratic rule of law.
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6

Wilson, Shannae Louise. "Effects on sleep-state organisation of a behavioural intervention for infant sleep disturbance." Thesis, University of Canterbury. Psychology, 2013. http://hdl.handle.net/10092/8044.

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Establishing healthy sleep-wake patterns early in infancy is vitally important as sleep problems can persist. Behavioural sleep interventions such as the parental presence procedure are well established and have been found to improve infant sleep as determined by parent report. The exact nature of this improvement is, however, unclear. Sleep consolidation, sleep-state organisation, and self-soothing are thought likely to change after intervention; however, no known research has comprehensively determined which of these variables change as infant sleep changes in response to intervention. Three participants aged between 7 to 11 months who met the criteria for Infant Sleep Disturbance (ISD) were referred by a Health Centre and the parental presence behavioural sleep intervention was implemented. Parental report and videosomonography (VSG) data were used to measure sleep before and after intervention. While parental report is limited in that parents can only report what they can hear and/or see, VSG offers a tool that can be used to measure sleep-state organisation, state changes, and periods when the infant is awake and quiet. The present research found that infants’ sleep became more consolidated resulting in fewer sleep-wake transitions and night wakings. Infants who had difficulties initiating sleep on their own also demonstrated decrease in Sleep Onset Delay (SOD). Furthermore, infants were found to sleep through a greater number of sleep-state transitions and sleep for a greater duration of time before waking. Collectively this research provides some evidence that changing parental behaviours to those that promote self-initiation through self-soothing and consistency, can change sleep-state organisation and improve self-soothing.
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7

Kassimi, Fodhil. "Development and performance of fiber-reinforced self-consolidating concrete for repair applications." Thèse, Université de Sherbrooke, 2013. http://hdl.handle.net/11143/6636.

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Abstract: The use of self-consolidating concrete (SCC) in the concrete industry in cast-in-place applications, including repair applications, is growing given the various advantages offered in both fresh and hardened states. The present study deals with the design and performance of fiber-reinforced self-consolidating concrete (FR-SCC) as a repair material of concrete infrastructure. The study also considers the use of various steel and synthetic fibers (five fibers in total) that were used to produce FR-SCC and fiber-reinforced self-consolidating mortar (FR-SCM) that can be employed for structural and non-structural repair applications. The study evaluates the effect of material properties and mixture composition of the fibrous concrete and mortar on workability, mechanical, visco-elastic, durability, and structural behavior. The investigation that is presented in this thesis included the testing of 28 full-scale beams under four-point flexural loading. The majority of these beams were repaired by casting concrete to fill a relatively thin section along the tension zone of the beams. The repair technique was based on the FR-SCC characteristics including the maximum fiber volume and length. This technique required mixtures of high range of fluidity. The optimized FR-SCC and FR-SCM mixtures exhibited excellent flow characteristics along the 3.2-m long beams without blockage, segregation, nor debonding at the interface of repair-substrate concrete. Based on the structural characteristics of the composite beams, the overall performance of the beams repaired using the FR-SCC and FR-SCM was similar or higher (up to 2.6 times) than that of monolithic beams made with conventional vibrated concrete (CVC). The use of optimized FRSCC mixtures enabled the replacement of 50% of the tension steel reinforcement in repair sections; i.e., the number of bars in the tension zone decreased from three bars to two bars with the addition of fibers in the SCC without mitigating structural performance. The degree of prediction of crack width, cracking load/moment, ultimate loads, and deflection of various FR-SCC and FR-SCM mixture was evaluated using several design and code models. The results indicate that these code models can provide safe predictions for crack and ultimate loads, as well as crack width of FR-SCC. The deflection of FR-SCC is unsafe but predictable by these code models. In total, 18 large-scale beams were tested in four-point for flexural creep. FR-SCC incorporating steel fibers combined with expansive agent provided overall performance up to 10 times of that obtained with CVC with the same fiber type and volume. The cracking under constant load was reduced by 60% to 80% using self-consolidating fibrous mixtures made with or without expansion agents, compared to SCC without fibers. The best combination to reduce the cracking potential when the restrained shrinkage ring test was employed was obtained with SCC mixtures made with steel fibers and expansive agent. Models were elaborated to predict the time-to-cracking for FR-SCC and FR-SCM mixtures based on mixture modulus of elasticity and drying and autogenous shrinkages. The project involved extensive testing of highly flowable fibrous materials to determine drying shrinkage (nearly 260 prisms), modulus of rupture (nearly 180 prisms), as well as compressive and splitting tensile strengths and elastic modulus (nearly 2100 cylinders). Based on the results, models were proposed to predict these key material properties that affect the performance of FR-SCC and FR-SCM used in repair applications. In addition to FR-SCC, the investigation also was set to evaluate the feasibility of using fiber-reinforced superworkable concrete (FR-SWC) in construction and repair applications. Such highly flowable concrete that requires limited vibration consolidation can represent some advantages over FR-SCC (lower admixtures demand, lower risk of segregation, greater robustness, lower formwork pressure, etc.). The energy needed to ensure proper consolidation, using either vibration or rodding, applied on samples made with FR-SWC was determined. The energy requirement took into consideration the development of mechanical properties, the resistance to segregation, and the development of proper surface quality. The study also demonstrated the higher overall structural performance of optimized FR-SWC compared to the corresponding FR-SCC mixtures. The findings of the thesis on the design and performance of highly workable fiber-reinforced cementitious materials should facilitate the acceptance of such novel high-performance material in infrastructure construction and repair applications. // Résumé: L'utilisation du béton autoplaçant (BAP) dans l'industrie du béton dans les applications du coulage sur place incluant les applications de la réparation, est en croissance vu les divers avantages offerts à l'état frais et à l'état durci. La présente étude traite de la conception et la performance des bétons autoplaçants fibrés (BAPF) en tant que matériau de réparation des infrastructures en béton. L'étude considère également l'usage de différentes fibres métalliques et synthétiques (cinq fibres au total) qui ont été utilisées pour produire des BAPF et des mortiers autoplaçants fibrés (MAPF) pour des applications de réparations structurales et non structurales. L'étude évalue l'effet des propriétés du matériau et la composition des bétons et mortiers fibrés sur l'ouvrabilité, les propriétés mécaniques, viscoélastiques, de durabilité et le comportement structural. L'étude présentée dans cette thèse a inclus 28 poutres à grande échelle testées sous un chargement flexionnel à quatre points. La majorité de ces poutres a été réparée par le coulage du béton pour remplir une section relativement mince tout au long de la zone tendue des poutres. La technique de réparation a été basée sur les caractéristiques des BAPF incluant le volume maximal et la longueur maximale de fibres. Cette technique a requis des mélanges de haut niveau de fluidité. Les BAPF et MAPF ont exhibé d'excellentes caractéristiques d'écoulement le long de 3,2 m, la longueur de la poutre, sans blocage, ségrégation, ni décollement à l'interface entre le béton de base et le béton de réparation. En se basant sur les caractéristiques structurales des poutres composites, la performance globale des poutres réparées en utilisant les BAPF et les MAPF était similaire ou supérieure (jusqu'à 2,6 fois) que celle des poutres monolithiques fabriquées d'un béton conventionnel vibré (BCV). L'utilisation des mélanges de BAPF optimisés a permis de remplacer 50% du ferraillage tendu dans les sections de réparation; c'est-à-dire que le nombre des barres d'armatures dans la zone tendue a réduit de trois barres à deux barres avec l'addition de fibres dans le BAP sans mitiger la performance structurale. Le degré de prédiction de la largeur de fissures, charge de fissuration, charge ultime et déflexion de différents mélanges de BAPF et MAPF a été évalué en utilisant quelques designs et modèles de codes. Les résultats ont montré que ces modèles ont pu fournir de prédictions sécuritaires pour les charges de fissuration et ultime, ainsi que la fissuration des BAPF. La déflexion des BAPF est non sécuritaire mais reste prédictible par ces modèles de codes. En total, 18 poutres à grande échelle ont été testées en fluage flexionnel de quatre points. Des BAPF contenant des fibres métalliques combinées avec un agent expansif ont fourni une performance globale jusqu'à 10 fois celle obtenue avec un BCV contenant le même type et volume de fibres. La fissuration sous une charge constante a été réduite de 60% à 80% en utilisant des mélanges autoplaçants fibrés fabriqués avec ou sans agents expansifs, par rapport au BAP sans fibres. La meilleure combinaison pour réduire le potentiel de fissuration avec l'essai du retrait restreint a été obtenue avec des mélanges de BAP contenant de fibres d'acier et un agent expansif. Des modèles ont été élaborés pour prédire le temps de fissuration des mélanges de BAPF et MAPF basés sur le module d'élasticité du mélange et les retraits de séchage et endogène. Le projet comportait de nombreux essais sur les mélanges fibrés de haute fluidité à savoir la détermination du retrait de séchage (près de 260 prismes), le module de rupture (près de 180 prismes), ainsi que la résistance en compression, la résistance en traction et le module d'élasticité (plus de 2100 cylindres). En se basant sur les résultats, des modèles ont été proposés pour prédire ces propriétés clés qui affectent la performance des BAPF et MAPF destinés aux applications de réparation. En plus des BAPF, l'étude a aussi été faite pour évaluer la faisabilité de l'utilisation des bétons semi-fluides fibrés (BSFF) dans les applications de construction et de réparation. Tels bétons de haute fluidité requérant une consolidation limitée peuvent présenter certains avantages par rapport aux BAPF (plus faible demande en adjuvants, plus faible risque de ségrégation, robustesse supérieure, plus faible pression sur les coffrages, etc.). L'énergie nécessaire pour assurer une propre consolidation, en utilisant soit la vibration ou le piquage, appliquée sur des échantillons de BSFF a été déterminée. Les exigences de cette énergie considèrent le développement des propriétés mécaniques, la résistance à la ségrégation et la propre qualité de surface. L'étude a aussi démontré une performance structurale globale supérieure des BSFF optimisés par rapport aux mélanges de BAPF correspondant. Les conclusions de la thèse sur le design et la performance des matériaux cimentaires renforcés de fibres et de haute fluidité devraient faciliter l'acceptation de tels nouveaux matériaux de haute performance dans les applications de la construction et la réparation des infrastructures.
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8

Elers, Andreas. "Continual imitation learning: Enhancing safe data set aggregation with elastic weight consolidation." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-256074.

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Анотація:
The field of machine learning currently draws massive attention due to ad- vancements and successful applications announced in the last few years. One of these applications is self-driving vehicles. A machine learning model can learn to drive through behavior cloning. Behavior cloning uses an expert’s behavioral traces as training data. However, the model’s steering predictions influence the succeeding input to the model and thus the model’s input data will vary depending on earlier predictions. Eventually the vehicle may de- viate from the expert’s behavioral traces and fail due to encountering data it has not been trained on. This is the problem of sequential predictions. DAG- GER and its improvement SafeDAGGER are algorithms that enable training models in the sequential prediction domain. Both algorithms iteratively col- lect new data, aggregate new and old data and retrain models on all data to avoid catastrophically forgetting previous knowledge. The aggregation of data leads to problems with increasing model training times, memory requirements and requires that previous data is maintained forever. This thesis’s purpose is investigate whether or not SafeDAGGER can be improved with continual learning to create a more scalable and flexible algorithm. This thesis presents an improved algorithm called EWC-SD that uses the continual learning algo- rithm EWC to protect a model’s previous knowledge and thereby only train on new data. Training only on new data allows EWC-SD to have lower training times, memory requirements and avoid storing old data forever compared to the original SafeDAGGER. The different algorithms are evaluated in the con- text of self-driving vehicles on three tracks in the VBS3 simulator. The results show EWC-SD when trained on new data only does not reach the performance of SafeDAGGER. Adding a rehearsal buffer containing only 23 training exam- ples to EWC-SD allows it to outperform SafeDAGGER by reaching the same performance in half as many iterations. The conclusion is that EWC-SD with rehearsal solves the problems of increasing model training times, memory re- quirements and requiring access to all previous data imposed by data aggre- gation.
Fältet för maskininlärning drar för närvarande massiv uppmärksamhet på grund av framsteg och framgångsrika applikationer som meddelats under de senaste åren. En av dessa applikationer är självkörande fordon. En maskininlärningsmodell kan lära sig att köra ett fordon genom beteendekloning. Beteendekloning använder en experts beteendespår som träningsdata. En modells styrförutsägelser påverkar emellertid efterföljande indata till modellen och således varierar modellens indata utifrån tidigare förutsägelser. Så småningom kan fordonet avvika från expertens beteendespår och misslyckas på grund av att modellen stöter på indata som den inte har tränats på. Det här är problemet med sekventiella förutsägelser. DAGGER och dess förbättring SafeDAGGER är algoritmer som möjliggör att träna modeller i domänen sekventiella förutsägelser. Båda algoritmerna samlar iterativt nya data, aggregerar nya och gamla data och tränar om modeller på alla data för att undvika att katastrofalt glömma tidigare kunskaper. Aggregeringen av data leder till problem med ökande träningstider, ökande minneskrav och kräver att man behåller åtkomst till all tidigare data för alltid. Avhandlingens syfte är att undersöka om SafeDAGGER kan förbättras med stegvis inlärning för att skapa en mer skalbar och flexibel algoritm. Avhandlingen presenterar en förbättrad algoritm som heter EWC-SD, som använder stegvis inlärningsalgoritmen EWC för att skydda en modells tidigare kunskaper och därigenom enbart träna på nya data. Att endast träna på nya data gör det möjligt för EWC-SD att ha lägre träningstider, ökande minneskrav och undvika att lagra gamla data för evigt jämfört med den ursprungliga SafeDAGGER. De olika algoritmerna utvärderas i kontexten självkörande fordon på tre banor i VBS3-simulatorn. Resultaten visar att EWC-SD tränad enbart på nya data inte uppnår prestanda likvärdig SafeDAGGER. Ifall en lägger till en repeteringsbuffert som innehåller enbart 23 träningsexemplar till EWC-SD kan den överträffa SafeDAGGER genom att uppnå likvärdig prestanda i hälften så många iterationer. Slutsatsen är att EWC-SD med repeteringsbuffert löser problemen med ökande träningstider, ökande minneskrav samt kravet att alla tidigare data ständigt är tillgängliga som påtvingas av dataaggregering.
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9

Lebrun, Hélène. "Compréhension des mécanismes d’adhésion dans un composite à matrice thermoplastique lors de sa mise en œuvre par consolidation en continu." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0123.

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Les technologies de placement de plis ou d’enroulement filamentaire de composite à matrice thermoplastique avec consolidation en continu ont fait l’objet de nombreux travaux ces dernières années. Ces études ont porté principalement sur des composites à base de matrice thermoplastique semi-cristalline comme le poly(éther éther cétone) (PEEK) renforcée de fibres de carbone. L’objectif de la thèse est de déterminer les lois de comportement du composite fibres de carbone/matrice thermoplastique lors de la mise en œuvre afin de déduire quelle étape gouverne le processus de soudage et quels sont les paramètres procédés et matériaux influençant sa durée. Dans ce but, les principales propriétés de la matrice utiles à l’étude ont, dans un premier temps, été déterminées. Une attention particulière a été portée sur la dégradation thermique. Les analyses en thermogravimétrie ont ainsi permis d’évaluer sa cinétique de dégradation. Dans un deuxième temps, les mécanismes de contact intime et d’autohésion, responsables du soudage, ont été étudiés à partir de modèles. Pour cela, les mesures de rugosité de surface et de viscosité ont été intégrées au modèle de contact intime. Le temps de diffusion de la matrice a été déterminé par rhéologie puis intégré au modèle d’autohésion. Enfin, l’influence des paramètres procédé (temps, température et pression) et matériau (masses molaires et rugosité) sur les mécanismes de formation de l’interface et ses performances mécaniques a été évaluée expérimentalement par des tests d’adhérence (clivage et pelage) et comparée aux modèles
The automated tow placement or filament winding processes of thermoplastic-based composites have been intensively studied in recent years. These studies concerned mainly composites with thermoplastic semi-crystalline matrices as carbon fiber reinforced poly(ether ether ketone) (PEEK). The thesis objective is to understand the physical mechanisms taking place in a thermoplastic-based composite during the welding in order to deduce which step governs the welding process and what are the parameters influencing its duration. First, the main properties of matrix of interest for this study were determined, in particular its thermal degradation. The thermal gravimetric analysis thus allowed to evaluate the kinetics of degradation. Secondly, the mechanisms of intimate contact and self-adhesion responsible for welding were studied using models. For this, surface roughness and viscosity measurements were included in the model of intimate contact. The diffusion time of matrix was determined by rheology and integrated into the self-adhesion model. Eventually, the influence of process (time, temperature and pressure) and material (molecular weight and roughness) parameters on the mechanisms of interface formation and its mechanical performance was evaluated experimentally by adhesion tests (wedge test and peeling ) and compared with models
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10

Feller, Eugen. "Autonomic and Energy-Efficient Management of Large-Scale Virtualized Data Centers." Phd thesis, Université Rennes 1, 2012. http://tel.archives-ouvertes.fr/tel-00785090.

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Large-scale virtualized data centers require cloud providers to implement scalable, autonomic, and energy-efficient cloud management systems. To address these challenges this thesis provides four main contributions. The first one proposes Snooze, a novel Infrastructure-as-a-Service (IaaS) cloud management system, which is designed to scale across many thousands of servers and virtual machines (VMs) while being easy to configure, highly available, and energy efficient. For scalability, Snooze performs distributed VM management based on a hierarchical architecture. To support ease of configuration and high availability Snooze implements self-configuring and self-healing features. Finally, for energy efficiency, Snooze integrates a holistic energy management approach via VM resource (i.e. CPU, memory, network) utilization monitoring, underload/overload detection and mitigation, VM consolidation (by implementing a modified version of the Sercon algorithm), and power management to transition idle servers into a power saving mode. A highly modular Snooze prototype was developed and extensively evaluated on the Grid'5000 testbed using realistic applications. Results show that: (i) distributed VM management does not impact submission time; (ii) fault tolerance mechanisms do not impact application performance and (iii) the system scales well with an increasing number of resources thus making it suitable for managing large-scale data centers. We also show that the system is able to dynamically scale the data center energy consumption with its utilization thus allowing it to conserve substantial power amounts with only limited impact on application performance. Snooze is an open-source software under the GPLv2 license. The second contribution is a novel VM placement algorithm based on the Ant Colony Optimization (ACO) meta-heuristic. ACO is interesting for VM placement due to its polynomial worst-case time complexity, close to optimal solutions and ease of parallelization. Simulation results show that while the scalability of the current algorithm implementation is limited to a smaller number of servers and VMs, the algorithm outperforms the evaluated First-Fit Decreasing greedy approach in terms of the number of required servers and computes close to optimal solutions. In order to enable scalable VM consolidation, this thesis makes two further contributions: (i) an ACO-based consolidation algorithm; (ii) a fully decentralized consolidation system based on an unstructured peer-to-peer network. The key idea is to apply consolidation only in small, randomly formed neighbourhoods of servers. We evaluated our approach by emulation on the Grid'5000 testbed using two state-of-the-art consolidation algorithms (i.e. Sercon and V-MAN) and our ACO-based consolidation algorithm. Results show our system to be scalable as well as to achieve a data center utilization close to the one obtained by executing a centralized consolidation algorithm.
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11

Anderson, Ryan J. "Consolidation of parental monitoring variables and scales preliminary evidence for construct validity /." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10714.

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Анотація:
Thesis (M.S.)--West Virginia University, 2009.
Title from document title page. Document formatted into pages; contains vi, 128 p. Includes abstract. Includes bibliographical references (p. 92-103).
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12

Ahmed, Rukaiyatu Usman. "Plot consolidation in sites and service projects : a case study of Bauchi Project." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318310.

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13

Gout, Philippe. "L’appréhension de l’ordre juridique coutumier infra-étatique par le droit international : l’expérience soudanaise de la consolidation de la paix." Thesis, Paris 2, 2019. http://www.theses.fr/2019PA020031.

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Анотація:
Le modèle d’intervention internationale de la consolidation de la paix a été conceptualisé dans les années 1990 au sein des Nations Unies. Il s’inscrit dans les approches du Droit administratif global, promouvant une conception matérielle et aliénante de la souveraineté ainsi qu’un monisme à primauté du droit international. La consolidation de la paix vise l’établissement d’un État de droit libéral marqué par la bonne gouvernance démocratique et la protection des droits de l’homme individuels. L’étude des deux cadres internationaux exemplaires de consolidation de la paix au Soudan (Darfour et « deux zones ») permet d’en identifier le régime général. Pour réaliser sa finalité au profit de l’ordre juridique étatique, la consolidation de la paix démantèle tout ordre juridique infra-étatique concurrent. Ces ordres « coutumiers » et autonomes du droit étatique sont théorisés à l’aide de l’institutionnalisme italien et d’une approche formaliste du droit, permettant de déterminer les conditions auxquelles le droit international appréhende leurs éléments constitutifs. Cette appréhension se fait dans le cadre de programmes localisés et ponctuels de développement et de justice transitionnelle fondés sur l’institution de la fiducie. Ce modèle d’intervention apparaît alors comme une forme renouvelée et précaire d’administration internationalisée des territoires empruntant au régime du mandat ou de la tutelle leur structure. En s’appuyant sur ces ordres juridiques coutumiers, la consolidation de la paix en aliène les éléments constitutifs au prix d’un paradoxe assumé : le droit international nie toute nature juridique aux ordres coutumiers avec lesquels il interagit au quotidien
The international peacebuilding intervention model was conceptualized in the 1990’s by the United Nations. It originates from theoretical approaches within Global Administrative Law that promote a materialist and alienating understanding of the concept of sovereignty and monist theories of international law. Peacebuilding aims at establishing liberal rule of law that fosters democratic good governance and the protection of individual human rights. A close scrutiny of this international peacebuilding framework in two exemplary settings in Sudan (Darfur, the “two areas” of South Kordofan and Blue Nile) allows for an analysis of the general legal regime of the peacebuilding model. In the interest of upholding the state’s rule of law, peacebuilding dismantles any competing infra-state legal order. Such so-called autonomous ‘customary’ orders are theorized here following Italian institutionalism and a formalist approach to law. This enables an understanding of how international law maneuvers the constituent elements of such legal orders. Maneuvering of infra-state customary legal orders is enacted through localized and temporary development and transitional justice programs based on the institution of the “trust”. The peacebuilding model consequently appears as a renewed and fleeting form of internationalized administration of territories borrowing from the League of Nations mandate or the United Nations trust systems. By drawing on customary legal orders, international law alienates the constituent elements therein at the price of an acknowledge paradox: international law denies any legal nature to the customary legal orders with which it interacts on a daily basis
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14

Laniepce, Alice. "Modifications du sommeil associées à la consommation chronique et excessive d'alcool : liens avec les altérations cérébrales structurales et les troubles cognitifs Neuropsychological and neuroimaging examinations of self‐reported sleep quality in alcohol use disorder with and without Korsakoff's syndrome Sleep architecture and episodic memory performance in alcohol use disorder with and without Korsakoff syndrome The effect of alcohol withdrawal severity on sleep, brain and cognition Dissociating thalamic alterations in alcohol use disorder defines specificity of Korsakoff's syndrome Cerebellar hypermetabolism in alcohol use disorder: compensatory mechanism or maladaptive plasticity ? Alcohol use disorder : permanent and transient effects on the brain and neuropsychological functions Effects of sleep and age on prospective memory consolidation Troubles cognitifs dans l'alcoolodépendance Repérage des troubles cognitifs liés à l’alcool." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC039.

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En amont du développement de complications neurologiques sévères telles que le syndrome de Korsakoff (SK), les patients présentant un Trouble de l’Usage d’Alcool (TUAL) présentent des altérations cérébrales et cognitives de nature et de sévérité variables, ainsi que des troubles du sommeil. Bien qu’il soit clairement établi que le sommeil contribue au fonctionnement cérébral et cognitif, son implication comme facteur explicatif des atteintes cérébrales et cognitives dans le TUAL reste peu documentée. L’objectif de cette thèse était de préciser les modifications (subjectives et objectives) du sommeil chez les patients TUAL et SK, et leurs liens avec la structure cérébrale et le fonctionnement cognitif. Nos résultats montrent que la plainte de sommeil doit être interprétée au regard de la sévérité des atteintes cérébrales et cognitives chez les patients TUAL et SK. De plus, nous montrons qu’une proportion élevée de patients présentent des apnées du sommeil. Chez les patients SK, une atteinte spécifique du sommeil paradoxal est observée, associée à la sévérité des difficultés mnésiques. Enfin, chez les patients TUAL, nous montrons le rôle particulier de la sévérité du syndrome de sevrage dans l’atteinte du sommeil lent profond, et son impact sur le fonctionnement cérébral et cognitif. Ainsi, il semble exister des similarités et des différences dans l’architecture du sommeil de ces deux formes cliniques (TUAL et SK). Ces modifications de sommeil dépendraient de la sévérité du sevrage et seraient impliquées dans la physiopathologie des atteintes structurales et cognitives liées à l’alcool. Ces résultats soulignent la nécessité d’évaluer et de prendre charge à la fois le sevrage et les modifications du sommeil des patients TUAL afin d’améliorer le pronostic des patients à la sortie des services hospitaliers
Well before the development of severe alcohol-related neurological complications such as Korsakoff’s syndrome (KS), patients with Alcohol Use Disorder (AUD) exhibit variable brain damage and cognitive deficits, as well as sleep disturbances. Although it is well established that sleep contributes to brain and cognitive functioning, its involvement in brain damage and cognitive deficits in AUD remains poorly understood. The objective of this thesis was to investigate subjective and objective sleep quality in AUD and KS patients, and its relationships with brain structure and function. Our results show that sleep complaint must be interpreted with regard to the severity of brain alterations and cognitive impairments in AUD and KS patients. Moreover, we showed a high prevalence of sleep apnea in these patients. REM sleep abnormalities are specifically observed in KS patients and related to the severity of memory deficits. Regarding AUD patients, we highlight the contribution of the severity of withdrawal syndrome in slow wave sleep decrease, and its effects on brain and cognitive functioning. Hence, similarities and differences of sleep architecture have been found in the two clinical forms (AUD and KS). These sleep modifications could depend on the severity of alcohol withdrawal and be involved in the pathophysiology of alcohol-related structural brain damage and cognitive impairment. These results encourage evaluating and managing both alcohol withdrawal and sleep modifications to improve patients’ prognosis at discharge from Addiction department
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15

Jie, Wen, and 許文杰. "A Study of Self-weight Consolidation for Geotextile Tube." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/47676997299428242457.

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碩士
國立高雄第一科技大學
營建工程所
98
Geotube has been utilized to protect the coastal erosion in European, American and Asian countries for many years with considerable success. It has the advantages of low cost, simple and rapid construction, environmental ecological protection, and can replace the traditional wave breakers for wave absorption measures on the convex dike or offshore levees. This research employs numerical simulation to analyze the pressure and displacement variation produced during the filling process of the Geotube. The Finite Element Analysis (FEA) software package ABAQUS is used to simulate the response of the sand tube stuffing up process through a two dimensional model. Several major points are discussed in this article: sand tube consolidation through self weight, the process of filling up the sand tube from beginning, completion, and settlement of the sand compaction, data analysis of final pore water pressure and height, etc. Cantre’s actual data (2002) are used to verify ABAQUS simulation model. The changes of several different parameters are adopted as the test values for the model to simulate the sand tube filling process much closer to the actual situation. The physical experiments are compared with the simulation results to verify the optimized height and stuffing pressure of the settled compacted Geotube.
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16

Rees, Heidi. ""A consolidation of spinsters" : fiction, food and self-awareness in the early novels of Barbara Pym." 1994. http://hdl.handle.net/1993/18462.

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17

Kun, Yang Chao, and 楊朝坤. "Research on Self-Financing Resources after the Consolidation of Kaohsiung City and County – using Property Tax as an example." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/27923391157718151689.

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Анотація:
碩士
國立高雄應用科技大學
商務經營研究所
100
As our society develops and transforms rapidly, services provided by the government should change from time to time in order to meet people’s demand and expectations. Under the impacts of global financial tsunami and European debts, almost all countries are facing fiscal crisis. Our government is also unable to avoid the situation. Taiwan pushes forth the consolidation of City and County to implement the local governance and enhance global competitiveness. However, after the consolidation of five major cities and counties on December 25, 2010, each municipality seemed to show no improvement in its ability of self-financing. Instead, the expanding districts, increasing population and inadequate infrastructures caused insufficient funds. In addition, the Act Governing the Allocation of Government Revenues and Expenditures and Public Debt Act were not amended accordingly. It therefore could not raise the upper limit for debts or allocate central resources to locals for the needs of local governance. Among the five municipalities, Kaohsiung City’s fiscal status ranks the worst. This study thoroughly examines the tax revenue of Kaohsiung City obtained from self-financing, which could be the reference for policy planning. Firstly, this study compares the current status of the following five aspects: local tax revenue, other revenue, central-distributed tax revenue, aid and assistance revenue and raise of public debts. Secondly, this study further analyzed the local tax revenue, the major item of self-financing resources. It especially focused on the changes in tax rates of local taxes (including land and house taxes) and central jurisdiction, prevention of tax base erosion and appraisal of land and houses and local jurisdiction. Suggestions for increasing income and decreasing expenditure are proposed and can be used as the references for fiscal policy. Suggestions of this study include: 1.Complete the amendments for Act Governing the Allocation of Government Revenues and Expenditures and Public Debt Act as soon as possible in order to improve the local government’s fiscal status and assist the local government in implementing administrative policies. 2.Consider the balance of regional development and support the autonomy of local governments when central government implements administrative policies and tax reforms. 3.Fully review the structure of House Tax and Land Value Tax to realize tax equity, ensure social justice and improve the local finance. 4.Improve the real estate appraisal system to achieve tax equity and housing justice and improve local finance. 5.According to the local fiscal needs, the local government should adjust the announced land value rationally and show its determination of improving the finance.
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18

Major, Diaz San Francisco Carolina. "Migration, transnationalism, illness and healing: toward the consolidation of the self among the Congolese diaspora in Boston and Lynn, MA." Thesis, 2016. https://hdl.handle.net/2144/16996.

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This thesis explores the perceptions of illness and healing among the Congolese diaspora in Boston and Lynn, MA, and within the contexts of migration and transnationalism. With this thesis, I argue that the Congolese who participated in this study perceive illness as social suffering, and healing as the consolidation of the self. Participants express their perceptions of illness and healing according to their identities, or the orientations of the self. Perceptions of illness were expressed as illness narratives framed under the theories of structural violence, and from the perspectives of the Congolese as displaced and migrant people. Congolese extend their perceptions of illness also to other non-Congolese communities they have come to belong to through transnational and global social formations. Congolese demonstrate that healing means the consolidation of their self, or identities, as Catholic Congolese in diaspora, advocates for refugees, African-Americans, Blacks, and “the Priest” in Lynn. Congolese emphasize that building and maintaining their newly acquired identities form part of their strategies to establish themselves in the USA, and bring healing to themselves and others. This exploration is limited, and thus, further research is recommended on: 1) other Congolese community groups; 2) the local and global Congolese diasporic activism for conflict resolution directed to the DRC; 3) practical proposals for collaborative research in order to resolve the socio-cultural and economic barriers that Congolese have in clinical settings.
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19

Zhao, Yue. "Study on performance of Cement Paste Backfill (CPB) with different binder under various situation." Thesis, 2020. http://hdl.handle.net/2440/124375.

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The mining process involves the removal and recovery of economically valuable minerals from the earth’s crust. The resulting excavations are commonly revived by a process referred to as backfill. The fill performs as both a support system and a working platform; its different roles determine the requirements of its mechanical properties. Cemented Paste Backfill (CPB) is a high-density slurry composed of dewatered tailings, a cementitious binder and processed mine water, which is thickened to obtain a non-settling character for facile pumping into mined cavities resulted from underground mine operations. Over the past few decades, CPB technology has increasingly been used to revive mined cavities in underground mine operations, owing to its low operating cost. It minimises the adversities associated with tailings disposal, and it has higher mechanical performance compared with other backfilling methods. The present study intends to examine various factors influencing CPB mechanical and rheological properties to get a better understanding of backfill design. The experimental program consisted of the combined capacity of ordinary Portland cement (PC), a newly developed slag-blended cement (Minecem, MC), the binder, and fly ash (FA), the additive, as a sustainable solution towards improving the mechanical performance of a copper-gold underground mine CPB system. A series of unconfined compression tests were carried out on various binder and binder + additive mix designs to evaluate the effect of binder and additive contents and curing time on strength, toughness and stiffness of the CPB system. For some PC + FA mix designs, the failure patterns of the tested samples were also investigated using the three-dimensional DIC technique. Furthermore, the rheological properties of CPB slurry are studied with different concentrations Minecem (MC), Portland cement (PC) and fly ash (FA), under various water and temperature condition using the same tailings material as well. A series of rheometer tests (for yield stress) were carried out on different MC + FA and PC + FA designs for evaluating the effects of binder and additive contents, as well as water content, water type and temperature on the rheological properties of CPB slurry. After placing the CPB material in the stope, and during the setting and hardening processes, the weight of CPB stope applies an axial load over the CPB paste, from the upper layer to the bottom layer of the stope, may result in a consolidation of early-aged backfill material in the lower layers which is called self-consolidation. This self-applied load leads to the strength of CPB specimens obtained by coring from in situ backfill stope are 50% to 200% higher than CPB specimens prepared by using conventional plastic molds over the same curing period. The present study intends to investigate the impact of axial applied stress (As) during curing, which represents the various self-consolidation condition, on the mechanical properties of CPB material. Also, the complicated underground situation may lead to delayed drainage or re-saturation by external water after backfilling. The unsaturated condition will happen due to the irrigation and drain down of backfill material over time. A series of triaxial compression test for CPB consist of MC only were carried out on various saturation condition and confining pressure to evaluate the effect of saturation condition on the mechanical properties of the CPB system.
Thesis (Ph.D.) -- University of Adelaide, School of Civil, Environmental and Mining Engineering, 2020
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20

Reimers-Arias, Carlos Alberto. "Housing Diversity and Consolidation in Low-Income Colonias: Patterns of House Form and Household Arrangements in Colonias of the US-Mexico Border." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-08-907.

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Colonias are low-income settlements on the US-Mexico border characterized by poor infrastructure, minimum services, and an active housing construction with a high self-help and self-management component. Housing in colonias is very diverse showing house forms that include temporary and permanent structures, campers, trailers or manufactured houses and conventional homes. Most of this housing does not meet construction standards and codes and is considered substandard. Colonias households are also of diverse nature and composition including single households, nuclear and extended families, as well as multiple households sharing lots. This wide variety of house forms and households in colonias fits poorly within the nuclear household, single family detached housing idealized by conventional low-income housing projects, programs and policies. As a result, colonias marginally benefit from the resources available to them and continue to depend mostly on the individual efforts of their inhabitants. This research identifies the housing diversity and the process of housing consolidation in colonias of the US-Mexico border by looking at the patterns of house form and household arrangements in colonias of South Texas. Ten colonias located to the east of the city of Laredo along Highway 359 in Webb County, Texas were selected based on their characteristics, data availability and accessibility. Data collected included periodic aerial images of the colonias spanning a period of 28 years, household information from the 2000 census disaggregated at the block level for these colonias, and information from a field survey and a semi structured interview made to a random sample of 123 households between February and June 2007. The survey collected information about house form and household characteristics. The survey also incorporated descriptive accounts on how households completed their house from the initial structure built or set on the lot until the current house form. Data was compiled and analyzed using simple statistical methods looking for identifiable patterns on house form and household characteristics and changes over time. Findings showed that housing in colonias is built and consolidated following identifiable patterns of successive changes to the house form. Findings also showed that households in colonias share characteristics that change over time in similar ways. These results suggest similarities of colonias with extra-legal settlements in other developing areas. Based on these findings, the study reflects on possible considerations that could improve the impact of projects, programs and policies directed to support colonias and improve colonias housing.
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21

Pestana, Miguel Ângelo Filipe. "A utilização de ferramentas digitais na consolidação de conhecimentos na disciplina de História e o seu impacto no Autoconceito Académico." Master's thesis, 2019. http://hdl.handle.net/10316/93409.

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Анотація:
Relatório de Estágio do Mestrado em Ensino de História no 3º ciclo do Ensino Básico e no Ensino Secundário apresentado à Faculdade de Letras
O presente trabalho incide sobre as implicações da utilização de diferentes ferramentas digitais para a consolidação dos conhecimentos da disciplina de História e como a sua utilização pode influenciar o seu autoconceito académico. O trabalho foi desenvolvido na turma do 8º ano de escolaridade, no Colégio Bissaya Barreto, durante a realização do estágio pedagógico referente ao ano letivo 2018/2019. A sociedade em geral vive um conjunto de transformações a que a Escola não pode ficar indiferente. No mundo atual, global e exigente, e estruturado de uma forma complexa, os estudantes necessitam de possuir um conjunto de competências, como a criatividade, o espírito crítico, a colaboração, a iniciativa, a autonomia ou a capacidade de resolução de que lhes permita viver e “sobreviver” nesta nova ordem social, cultural, económica e política. E perante este contexto, torna-se cada vez mais importante articular os curricula escolares com a utilização de tecnologias digitais, como forma de promover estas competências, tal como tem vindo a ser enunciado por entidades internacionais, como o World Economic Forum (WEF) ou a Comissão Europeia que defendem a necessidade de criar novos modelos educomunicacionais, novos ecossistemas e cenários de aprendizagem. É precisamente, um desses novos cenários, enriquecido com diferentes aplicativos digitais – Kahoot, Mentimeter, Plickers e EdPuzzle – que pretendemos analisar neste texto, descrevendo o seu impacto no autoconceito académico de alunos do 3º Ciclo do Ensino Básico, a partir da análise qualitativa das suas perceções e narrativas. Os resultados mostram que este cenário ancorado num modelo centrado na aprendizagem e no desenvolvimento de competências, podem ter efeitos muito positivos no autoconceito académico dos alunos, a nível das diferentes dimensões consideradas: Motivação, Orientação para a tarefa, Confiança nas suas capacidades e Relação com os colegas. São discutidas as implicações dos resultados encontrados, tanto do ponto de vista de intervenção prática, quer em termos de investigações futuras.
This paper deals with the implications of using different digital tools for the consolidation of knowledge in the subject of History and how its use influences the academical self-concept. The project was elaborated in a class from the 8th grade, at the Colégio Bissaya Barreto, during the teacher training internship in the 2018/2019 school year. Society in general lives a set of transformations to which the School cannot remain indifferent. In today's global and demanding world, which is structured in a complex way, students need to have a set of skills such as creativity, critical thinking, collaboration, initiative, autonomy or resolving power, which will allows them to “survive” in this new social, cultural, economic and political order. Taking this context into account, it is becoming increasingly important to articulate schools’ curriculum with the use of digital technologies as a way to promote the skills mentioned, this has already been stated by international entities such as the World Economic Forum (WEF) or the European Commission, which advocate the need to create new educational models, new ecosystems and learning scenarios. It is precisely one of these new scenarios, enriched with different digital applications - Kahoot, Mentimeter, Plickers and EdPuzzle - that we intend to analyse in this text, describing their impact on the academic self-concept of 3rd cycle students, using the qualitative analysis of the their perceptions and narratives the baseline. The results show that this scenario, anchored on a model which is centered on learning and developing skills, can have very positive effects on students' academic self-concept, when we take into account the various dimensions considered: Motivation, Task orientation, Confidence in their abilities and Relationship with other students. The implications of the findings are discussed, both from the practical intervention point of view and in terms of future investigations.
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22

Miller, Warren Gregory. "Comparison of geoenvironmental properties of caustic and noncaustic oil sand fine tailings." Phd thesis, 2010. http://hdl.handle.net/10048/1497.

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Анотація:
A study was conducted to evaluate the properties and processes influencing the rate and magnitude of volume decrease and strength gain for oil sand fine tailings resulting from a change in bitumen extraction process (caustic versus non-caustic) and the effect of adding a coagulant to caustic fine tailings. Laboratory flume deposition tests were carried out with the objective to hydraulically deposit oil sand tailings and compare the effects of extraction processes on the nature of beach deposits in terms of geometry, particle size distribution, and density. A good correlation exists between flume deposition tests results using oil sand tailings and the various other tailings materials. These comparisons show the reliability and effectiveness of flume deposition tests in terms of establishing general relationships and can serve as a guide to predict beach slopes. Fine tailings were collected from the various flume tests and a comprehensive description of physical and chemical characteristics of the different fine tailings was carried out. The characteristics of the fine tailings is presented in terms of index properties, mineralogy, specific surface area, water chemistry, liquid limits, particle size distribution and structure. The influence of these fundamental properties on the compressibility, hydraulic conductivity and shear strength properties of the fine tailings was assessed. Fourteen two meter and one meter high standpipe tests were instrumented to monitor the rate and magnitude of self-weight consolidation of the different fine tailings materials. Consolidation tests using slurry consolidometers were carried out to determine consolidation properties, namely compressibility and hydraulic conductivity, as well as the effect of adding a coagulant (calcium sulphate [CaSO4]) to caustic fine tailings. The thixotropic strength of the fine tailings was examined by measuring shear strength over time using a vane shear apparatus. A difference in water chemistry during bitumen extraction was concluded to be the cause of substantial differences in particle size distributions and degree of dispersion of the comparable caustic and non-caustic fine tailings. The degree of dispersion was consistent with predictions for dispersed clays established by the sodium adsorption ratio (SAR) values for these materials. The biggest advantage of non-caustic fine tailings and treating caustic fine tailings with coagulant is an increased initial settlement rate and slightly increased hydraulic conductivity at higher void ratios. Thereafter, compressibility and hydraulic conductivity are governed by effective stress. The chemical characteristics of fine tailings (water chemistry, degree of dispersion) do not have a significant impact on their compressibility behaviour and have only a small influence at high void ratio (low effective stress). Fine tailings from a caustic based extraction process had relatively higher shear strengths than comparable non-caustic fine tailings at equivalent void ratios. However, shear strength differences were small and the overall impact on consolidation behaviour, which also depends on compressibility and hydraulic conductivity, is not expected to be significant.
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23

Guo, Chengmai. "Rapid densification of the oil sands mature fine tailings (MFT) by microbial activity." Phd thesis, 2009. http://hdl.handle.net/10048/702.

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Thesis (Ph.D.)--University of Alberta, 2009.
Title from PDF file main screen (viewed on Feb. 19, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Geotechnical Engineering, [Department of] Civil and Environmental Engineering, University of Alberta. Includes bibliographical references.
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24

Fourie, Mattheus Eduard. "Mergers in higher education : towards a survival kit for conserving the self." Thesis, 2008. http://hdl.handle.net/10500/3112.

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Mergers and incorporations are relatively new phenomena in the South African higher education landscape. The unbundling of Vista University, and the subsequent incorporation ofVUDEC into the merger between Unisa and TSA, posed a major challenge to all affected employees. This thesis focuses on how these employees experienced the various stages of the incorporation process. A social construction of inner and outer voices heard, shared, and read during the different phases of the incorporation process attempts to describe how to conserve the self in a merger. The aim of the thesis is to build towards a framework for dealing with the human aspect during institutional mergers and incorporations. The thesis consists of a prologue, a series of four manuscripts that report on the experiences of employees during the different phases of the merger process, and an epilogue. Each manuscript focuses on a specific phase or aspect of the incorporation process, with its own research focus, aims, and methodology. The first two manuscripts reflect on the pre-merger phase. The first manuscript reports on employees' preparation for the incorporation. Following a social constructionist grounded theory approach, four participating employees gained the opportunity to reflect on their own experiences of well-being during the pre-merger phase. The manuscript also reports on a wellness development workshop, attended by 35 representatives from various departments and units of Vista University during the pre-merger phase. The second manuscript reports on how employees embraced the VUDEC institutional culture. A case study approach was selected for semi-structured interviews with 17 participants from governance, academic and administrative departments, and post-graduate programmes. By means of content analysis, the institutional culture ofVUDEC was captured on the eve of the incorporation into Unisa. The third manuscript focuses on employees' experiences of the four-year transition and implementation phases of the incorporation. This manuscript follows a social identity approach, and through thematic analysis, reports on how 24 participants experienced the four-year implementation of the incorporation process. The fourth manuscript provides an overview of the human side of mergers as depicted in both national and international literature. The aim is to position the current longitudinal investigation and its findings in the broader higher education landscape, and a survival kit for conserving the self in a merger is proposed.
Psychology
D. Litt. et Phil. (Psychology)
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