The content of the thesis is to solve the relocation of railroad and bicycle path. I tis a bridge with five field. 2 studies were designed, one of which was elaborated within the Framework of this thesis. Was selected option no. 1 concrete prefabricated T-beams with coupled concrete slab The static model was created in Scia Engineer 18.1. and reports were processed manually, according to EC. The effects of wind, snow, acceleration and braking forces have been neglected.

Neste trabalho, estudamos modelos para crescimento de superfície. Mais especificamente, trabalhamos com um modelo que respeita a condicão RSOS e outro modelo que apresenta uma transicão de rugosidade da classe de universalidade da percolacão direcionada. Obtivemos resultados com aproximacão de campo médio e simulacão. / In this work we studied models for surface growth. More specifically, we worked with a model that presents the RSOS restriction and another one that displays a depinning transition in the direct percolation universality class. We obtained results using mean field approximation and simulation methods.

Neste trabalho, estudamos modelos para crescimento de superfície. Mais especificamente, trabalhamos com um modelo que respeita a condicão RSOS e outro modelo que apresenta uma transicão de rugosidade da classe de universalidade da percolacão direcionada. Obtivemos resultados com aproximacão de campo médio e simulacão. / In this work we studied models for surface growth. More specifically, we worked with a model that presents the RSOS restriction and another one that displays a depinning transition in the direct percolation universality class. We obtained results using mean field approximation and simulation methods.

Concrete slabs-on-ground are commonly used in many types of industrial floors, warehouses, highways, parking lots and buildings. Cracks and deflection of slabs are undesired events caused by differential shrinkage, which limits the service life of the slabs. Non-linear behavior of cracks and deflections, interaction of concrete and reinforcement increase the complexity in predicting the occurrence and positioning of cracks. The Eurocode 2 provides a reference for theoretical approximation for design of concrete structures. This thesis intent to investigate the crack behavior of slabs-on-ground subjected to gradient shrinkage using nonlinear finite element analysis, as implemented in the software package Atena 2D. The first part of the thesis is focused on suitable modeling techniques for predicting cracks in concrete slabs-on-ground due to gradient shrinkage. The second part is directed towards parametric studies, performed to explore the significance of varying thickness, length, concrete strength class, bond types, reinforcement content and friction coefficient. The results obtained with the Atena 2D was validated using the design software WIN-statik for calculating the maximum crack width in the context of obtaining realistic results. Finally, the WSP guide recommended parameters were tested as inputs to the model. A slab-on-ground was modeled in Atena 2D considering these as statically indeterminate structures, where both slab and grade were included and the convergence analysis performed under plane stress conditions enabling prediction of the maximum crack widths for increasing applied shrinkage loads. Parametric studies demonstrate the dependency of the slab length, showing that a smaller length reduces the crack width, since such a slab is less constrained by the sub-base. To avoid cracks in the slabs their relative thickness should not be increased above a certain thickness, instead the reinforcement content should be increased. The numerical simulation shows that different concrete strength classes give similar cracks widths. Sand as sub-base provides less crack widths for interface materials EPS, sand and gravel. Although, dry sand as interface material gives similar crack widths as EPS, it is the best to use EPS that is also used to retard the moisture diffusion from the sub-base. The numerical model developed was validated for the recommended values given by the WSP guide, which gives less crack widths and deflections. The numerical model gives less crack widths compared to the Eurocode 2, which considers only the statistically determinant problems overestimating the crack widths. The presented examples demonstrate that the developed model can accurately predict crack formation, crack behavior and vertical deflection in concrete slabs-on-ground subjected to gradient shrinkage loads.

This thesis deals with the evaluation of high-risk economical factors of one particular organization and consequently with their evaluation based on statistical methods. The principal aim of the study was to determine the dominant economic indicators of the organization and assess their development over time based on statistical methods, using statistical tools. The tools utilized in the thesis were Statgraphics Centurion XV and MS Excel.

Specialiosios pedagogikos fizinio ugdymo didaktikos srityje stinga tyrimų, analizuojančių vidutinę proto negalę turinčių vaikų fizinio ugdymo turinį, orientuotą į tai, kad ir vidutinę proto negalę turintiems vaikams, tikslingai parenkant fizinio ugdymo turinį (fizines ypatybes lavinančius pratimus), įvedant ir emocinio pasitenkinimo momentų (muzika, šokis, žaidimai) plėtotųsi kiekybiniai ir kokybiniai fizinių ypatybių rodikliai. Iškelta hipotezė, teigianti, jog tiriamosios grupės interesus ir poreikius atitinkanti mūsų sudaryta eksperimentinė fizinio ugdymo programa bus priimtinesnė sutrikusio intelekto vaikams dėl įdomesnių, emocionalesnių, patrauklesnių, nenusibodusių aerobikos pratimų derinimo prie muzikinio fono. Kokybiniu eksperimentu buvo atliktas tyrimas, kurio tikslas - ištirti vidutiniškai sutrikusio intelekto vaikams sudarytos aerobikos taikymo per fizinės veiklos pamokas programos priimtinumą jų emocinei raiškai ir motorikos lavinimui. Atlikta kokybinė duomenų analizė. Tyrime dalyvavo Šiaulių specialiosios mokyklos 7-14 metų ugdytiniai, vidutiniškai sutrikusio intelekto, turintys įvairių kompleksinių sutrikimų ( endokrininės sistemos sutrikimas, nutukimas, netaisyklinga laikysena, plokščiapadiškumas, akių ligos, Autizmo sindromas ), vaikų cerebrinį paralyžių ir kt. Tyrime dalyvavo 10 vaikų. Empirinėje dalyje testavimo būdu buvo nustatinėjami šie tyrimo objekto kintamieji: fizinės ypatybės - judesių koordinacija ir pusiausvyra (Eurofit‘o modifikuoti testai)... [toliau žr. visą tekstą] / The special school teacher’s physical upbringing didactics, remit lacks research these are analyzing intrinsic mind disability having children physical peculiarity purport, orientative for this, that and for unimpressive mind disability having children, expediently choose physical upbringing purports (physical features which educate routine), introductional and emotional changing moments (music, dance, games) developing quantitative and qualitative physical features exponents. There dislodged hypothesis, proposing, that searching group interests and requirements corresponding our made experimental physical upbringing program, will be more accepted for the disturbed intellect people (children) for more interesting, more emotional, more attractive, not boring aerobic routine turing by the musical context. The qualitative experiment was transacting research, which purpose is- explore ardinary disturbed intellect children made by the aerobical uses too physical lesson programs, admissibility for them emotional expression and the motorical training. Made qualitative information analysis. In analysis contested Šiauliai special school 7-14 years school-child, middily disturbed intellect, having variously complexive flusters. In research contested 10 schoochilds. In the empirintitive sections contestitive temper were designating these exploratory object rotationals: physical features – movement coordination and balance (Eurofit’s modifitive tests), posture (Heoger’s modifical... [to full text]

Le domaine de recherche dans l'évaluation objective de la qualité des images couleur a connu un regain d'intérêt ces dernières années. Les travaux sont essentiellement dictés par l'avènement des images numérique et par les nouveaux besoins en codage d'images (compression, transmission, restauration, indexation,…). Jusqu'à présent la meilleure évaluation reste visuelle (donc subjective) soit par des techniques psychophysiques soit par évaluation experte. Donc, il est utile, voire nécessaire, de mettre en place des critères et des mesures objectifs qui produisent automatiquement des notes de qualité se rapprochant le plus possible des notes de qualité données par l'évaluation subjective. Nous proposons, tout d'abort, une nouvelle métrique avec référence d'évaluation de la qualité des images couleur, nommée Delta E globale, se base sur l'aspect couleur et intègre les caractéristiques du système visuel humain (SVH). Les performances ont été mesurées dans deux domaines d'application la compression et la restauration. Les expérimentations réalisées montrent une corrélation importante entre les résultats obtenus et l'appréciation subjective. Ensuite, nous proposons une nouvelle approche d'évaluation sans référence de la qualité des images couleur en se basant sur les réseaux de neurones : compte tenu du caractère multidimensionnel de la qualité d'images, une quantification de la qualité a été proposée en se basant sur un ensemble d'attributs formant le descripteur PN (Précision, Naturalité). La précision traduit la netteté et la clarté. Quant à la naturalité, elle traduit la luminosité et la couleur. Pour modéliser le critère de la couleur, trois métriques sans référence ont été définies afin de détecter la couleur dominante dans l'image, la proportion de cette couleur et sa dispersion spatiale. Cette approche se base sur les réseaux de neurones afin d'imiter la perception du SVH. Deux variantes de cette approche ont été expérimentées (directe et progressive). Les résultats obtenus ont montré la performance de la variante progressive par rapport à la variante directe. L'application de l'approche proposée dans deux domaines : dans le contexte de la restauration, cette approche a servi comme un critère d'arrêt automatique pour les algorithmes de restauration. De plus, nous l'avons utilisé au sein d'un système d'estimation de la qualité d'images afin de détecter automatiquement le type de dégradation contenu dans une image. Dans le contexte de l'indexation et de la recherche d'images, l'approche proposée a servi d'introduire la qualité des images de la base comme index. Les résultats expérimentaux ont montré l'amélioration des performances du système de recherche d'images par le contenu en utilisant l'index qualité ou en réalisant un raffinement des résultats avec le critère de qualité. / The research area in the objective quality assessment of the color images has been a renewed interest in recent years. The work is primarily driven by the advent of digital pictures and additional needs in image coding (compression, transmission, recovery, indexing,...). So far the best evaluation is visual (hence subjective) or by psychophysical techniques or by expert evaluation. Therefore, it is useful, even necessary, to establish criteria and objectives that automatically measures quality scores closest possible quality scores given by the subjective evaluation. We propose, firstly, a new full reference metric to assess the quality of color images, called overall Delta E, based on color appearance and incorporates the features of the human visual system (HVS). Performance was measured in two areas of application compression and restoration. The experiments carried out show a significant correlation between the results and subjective assessment.Then, we propose a new no reference quality assessmenent color images approach based on neural networks: given the multidimensional nature of image quality, a quantification of quality has been proposed, based on a set of attributes forming the descriptor UN (Utility, Naturalness). Accuracy reflects the sharpness and clarity. As for naturality, it reflects the brightness and color. To model the criterion of color, three no reference metrics were defined to detect the dominant color in the image, the proportion of that color and its spatial dispersion. This approach is based on neural networks to mimic the HVS perception. Two variants of this approach have been tried (direct and progressive). The results showed the performance of the progressive variant compared to the direct variant. The application of the proposed approach in two areas: in the context of restoration, this approach has served as a stopping criterion for automatic restoration algorithms. In addition, we have used in a system for estimating the quality of images to automatically detect the type of content in an image degradation. In the context of indexing and image retrieval, the proposed approach was used to introduce the quality of images in the database as an index. The experimental results showed the improvement of system performance image search by content by using the index or by making a quality refinement results with the quality criterion.

This diploma thesis is focused on design and assessement of the road bridge in Příbor city, where road I/58 crosses road I/48. There are 3 possible of solution of designed structure which are slab construction, beam construction and prefabricated structure. Each solution includes the design and assessment of individual structures, including drawings and economic evaluation. In conclusion, the three solutions have been evaluated against all of the given criteria.

Es wurde eine programmunterstützte Methode für die Umsetzung des Toleranzmanagements entwickelt, welche die Bereiche Entwicklung, Technologie und Qualität in gemeinsame Verantwortung bringt. Dabei galt es, den Iterationsprozess der Lösungsfindung in verschiedenen Detaillierungsstufen mit wenigen Schleifen und im Streben nach kurzen Entwicklungszeiten, geringen Toleranzkosten, Qualitätsverlusten und Blindleistungen zu durchlaufen. Ein stimmiges Toleranzkonzept überzeugt durch toleranzgerechte Aufbaufolgen, robuste und funktionsnahe Referenzierungen, kompensatorische Verfahren sowie toleranzunempfindliche Beeinträchtigungen und Auswirkungen. Die Auslegung aller toleranzrelevanten Produktanforderungen und Prozessgegebenheiten wird in Form von Toleranzketten und Maßkatalogen automatisiert dokumentiert und mündet schließlich in bestätigten Kunden-Lieferanten-Vereinbarungen.

The scope of thesis is to design a curved arch footbridge. The main structure consists of composite deck supported by steel arch. The focus is on finding optimal shape of arch and proper cross-sections of elements. Bridge is analysed according to limit states.