Dissertations / Theses on the topic 'Technical damage'
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King, Robert Scott. "Damage tolerant 3D woven technical textiles in reinforced composites." Thesis, University of Ulster, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516537.
Full textPrinsloo, Linda Charlotta. "Raman spectroscopic investigation of radiation damage in carbon implanted diamond." Diss., Pretoria : [s.n.], 2001. http://upetd.up.ac.za/thesis/available/etd-02092006-152019/.
Full textAzeggagh, Nacer. "Damage mechanisms in silicon nitride materials under contact loading." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0075/document.
Full textThis work deals with the mechanical properties and damage mechanisms under contact loading of dense and porous silicon nitrides materials. These technical ceramics exhibit a very interesting combination of mechanical properties: low density, high hardness and strength, good corrosion resistance and a low thermal coefficient. They are used in many applications including ball bearings for the automotive and aerospace industries. The characterization of the local behaviour under contact loading is then a crucial issue. Spark plasma sintering technique is used to process silicon nitride ceramics with addition of different amount of yttrium oxide as sintering aid. Controlling the sintering temperature and the applied pressure has permitted to obtain materials with fine, medium and coarse microstructures. In addition, materials with different porosity contents have been obtained. First, we have investigated the influence of processing conditions (temperature, pressure, amount of yttria on the microstructure and mechanical properties at the macroscopic scale (elastic parameters, Vickers hardness, flexural resistance ...). Hertzian contact tests were then performed to identify the damage mechanisms at the surface and subsurface of the sintered materials. The use of indenting spheres of different radii permitted to observe a significant size effect. Brittle mode consisting of surface ring cracks were observed at large scale (macroscopic scale) while localized plastic deformation with microcracks randomly distributed was observed at small scale (mesoscopic scale). Transmission electron microscopy observations of thin foils machined by ion milling were performed to investigate the subsurface damage. Numerical simulations with a code developed internally in LaMCoS laboratory enabled to follow the evolution of the plastic zone under pure rolling conditions. In these simulations, the nonlinear behaviour of ceramics was modelled using a bilinear law where Sy is the yield stress and K a hardening parameter of the ceramic specimen. Instrumented indentation tests were performed using a diamond spherical tip of radius 42 µm. Experimental load versus displacement curves were used as input data for an inverse identification purpose. Levemberg-Marquart algorithm was used to minimize the gap in the least squares sense
Kuncová, Andrea. "Analýza a vyhodnocení dokumentace skutečných poškození vozidel po malých dopravních nehodách." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-232681.
Full textGirčius, Marijus. "Šilutės r. polderių hidrotechnikos statinių techninės būklės įvertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140617_121908-03235.
Full textPolders are very common hydrotechnical structures in Šilutė district. Their purpose is to protect its territories and structures from flooding. This paper examines the condition of the summer-type polder hydrotechnical structures of Alka and Smalkai, as well as the winter-type polder hydrotechnical structures of Traksėdžiai, Kintai and Ruguliai. During the research it was established that the accumulation of sediment in drainage ditches increases their bottom altitudes (the thickness of the sediment layer amounts to 0.2-1,0 m). The slopes of the dykes (in the distance of 100 metres) contains up to 10 inhabited or fallen-in rodent caves. The trench slopes and protective zones are overgrown with tall vegetation, the area of which in 100 m of the bank strip amounts to 60 m2. The damage of the reinforced mounting elements of the ditch slopes is clearly visible. The spaces between deformed, washed and shifted mounting plates are 0.5-11 cm. Slumped ground along the culverts in the carriageway resulted in deeper than 0.2-0.4 m cavities. Meeting the environmental requirements, the water level in the summer-type polder channels maintained is 0.5-1.1 m higher, compared to the operational water levels required for successful agricultural activity. The paper includes a water level monitoring data analysis and a discussion of the environmental and operational water levels in polders. Data comparison allowed to evaluate the values of the above-mentioned levels at relevant... [to full text]
Aquino, Rodrigo Leal de Queiroz Thomaz de. "Efeitos de 22 semanas de treinamento sobre as capacidades motoras, indicadores indiretos de dano muscular e o desempenho em campo: aplicações no futebol." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/17/17152/tde-05012016-110713/.
Full textThe purpose of the present dissertation was to verify the effects of 22 weeks of training, emphasizing the technical-tactical ability, on the behavior of motor capacities, indirect skeletal muscle damage markers [creatine kinase (CK) and lactate dehydrogenase (LDH)] and field performance of young soccer players (Chapters 2 and 3). Furthermore, it was aimed to compare the first and second halves of a simulated match regarding displacement patterns and tactical variables; and identify potential associations between the CK and LDH with the displacement patterns within the simulated match (Chapter 4). Twenty volunteers accepted to participate in this study (age 15.1 ± 0.3 years; height 171.5 ± 6.1 cm; body weight 60.4 ± 5.5 kg; body fat % 11.5 ± 2.8; peak height velocity 1.42 ± 0.5 years; VO2max 48.68 ± 4.67 ml.kg-1.min-1). The motor capacities were assessed by the motor tests: vertical jump and horizontal hump; adapted T-40; Shuttle Run Test and Running Anaerobic Sprint Test (RAST). To determine CK and LDH plasmatic activity, vein blood samples were collected (10ml). The field performance was assessed by displacement patterns kinematic two-dimensional analysis (total distance; average velocity; number of sprints; % on each intensity zone) e tactical variables (team occupation zone; players field distribution) on a simulated match, recorded by two cameras covering the whole area of the match. The performance on matches within the target competition were analyzed by earned points during the period. All the assessments mentioned were performed in four distinct moments: before preparatory stage (T0); after preparatory stage (T1); after competitive stage I (T2); and after competitive stage II (T3). When comparing moments T0 (before training program) and T3 (after training program), significant differences were found for all results regarding motor tests (p 0.05), in the direction of gain/improvement (Chapter 2). On matches performance, 83.33% of the contested points were achieved (Chapter 2). Regarding the behavior of the displacement patterns and tactical variables over the periodization, it was verified a significant improvement (p 0.05) on games intensity and tactic performance when comparing moments T0 and T3. This fact is proved by an increase of the variables: percentage of sprinting total covered distance, in high intensity, in maximal intensity, occupation and field distribution (Chapter 3). Concerning the plasmatic activity of CK and LDH, it was observed a significant reduction (p 0.05) (Chapter 3). On the Chapter 4, it is noticed on the results an significant improving (p 0.05) of total distance, average velocity, number of sprints, high intensity activities and tactical variables. Additionally, it is possible to verify a significant decreasing of low intensity total distance covered percentage on the second half. Moreover, it can be observed a large association between the percentage of CK and LDH delta variation with the displacement patterns on the simulated match. Through the Chapter 2 evidences, it is possible to conclude a significant enhancement of the motor capacities rates of the studied soccer players, besides an expressive earned points on the target competition. On Chapter 3 it is evident the performance gains during high intensity efforts along the match, on tactical performance and the reduction on biochemical markers for skeletal muscle damage. Yet, by the Chapter 4 outcomes, it is allowed to conclude that indirect skeletal muscle damage markers have large association with displacement patterns during a match performed on training conditions by young soccer players
Kepplinger, Jessica, Kristian Barlinn, Stanislava Kolieskova, Reza Bavarsad Shahripour, Lars-Peder Pallesen, Wiebke Schrempf, Xina Grählert, et al. "Reversal of the neurological deficit in acute stroke with the signal of efficacy trial of auto-BPAP to limit damage from suspected sleep apnea (Reverse-STEAL): study protocol for a randomized controlled trial." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-127301.
Full textKepplinger, Jessica, Kristian Barlinn, Stanislava Kolieskova, Reza Bavarsad Shahripour, Lars-Peder Pallesen, Wiebke Schrempf, Xina Grählert, et al. "Reversal of the neurological deficit in acute stroke with the signal of efficacy trial of auto-BPAP to limit damage from suspected sleep apnea (Reverse-STEAL): study protocol for a randomized controlled trial." BioMed Central, 2013. https://tud.qucosa.de/id/qucosa%3A27295.
Full textPrihatmaji, Yulianto Purwono. "Investigation of "Joglo" Structure Damaged by Earthquake and Development of Technical Conservation Method for Damaged Structural Members." Kyoto University, 2013. http://hdl.handle.net/2433/175057.
Full text0048
新制・課程博士
博士(農学)
甲第17628号
農博第1990号
新制||農||1010(附属図書館)
学位論文||H25||N4749(農学部図書室)
30394
京都大学大学院農学研究科森林科学専攻
(主査)教授 小松 幸平, 准教授 梅村 研二, 教授 中野 隆人
学位規則第4条第1項該当
Estivalet, Sandro Delevati. "AVALIAÇÃO DE DANOS AMBIENTAIS: ESTUDO DE CASO EM INDÚSTRIA DE AGROQUÍMICOS." Universidade Federal de Santa Maria, 2004. http://repositorio.ufsm.br/handle/1/8424.
Full textEste trabalho busca apresentar e analisar a partir de dados da pesquisa os danos ambientais em uma industria química, examinando e avaliando os custos e perspectivar a não incidência do mesmo através de técnicas de otimização utilizando ferramentas como Hazop, What-if, Análise de Riscos e Programas Preventivos de Segurança, enfim mostrar alguns recursos para minimizar os riscos ambientais. A coleta de dados consiste na investigação, através do emprego de métodos mais adequados com a problemática da pesquisa. Nesta dissertação o método aplicado foi o da pesquisa-ação e a coleta de dados empregada foi realizada por meio de análise de documentos e observação livre. O impacto observado após o evento foi que o mesmo poderia ser evitado, se antes e durante implantação do projeto da planta industrial tivesse uma melhor discussão nas decisões, além disso ocorreu uma grande quebra da relação da comunidade com a empresa. A recomendação é utilizar como diretrizes e análise ambiental vigente, visando a melhor adequação do empreendimento com a realidade econômica, optando pelas atitudes preventivas, avaliando todos os impactos antes de qualquer tomada de decisão. Os destaques principais na aplicação dessas ferramentas é a prevenção e redução dos riscos e acidentes, obtenção de informações que possam subsidiar tomadas de decisões gerenciais, avaliação e redução dos aspectos e impactos ambientais decorrentes do processo produtivo e obter o reconhecimento do público interno e externo como empresa ambientalmente responsável.
Vincíková, Hana. "Tvorba a čerpání rezerv na vypořádání důlních škod v souvislosti s přeložkami síťových staveb z hlediska účetního a daňového." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-205832.
Full textSammour, Karim. "Les machines de siège romaines : restitution virtuelle, contextualisation et médiation." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC016/document.
Full textThis research focuses on some particular aspects of Roman Siege Warfare and on solutions to transmit these results to an expert or non-expert public. There are many unstudied historical sources in the ancient and recent historiography, either narrative sources, poems or even some details from technical texts. An exhaustive analysis of those sources, dated between the first century BC to the fourth century AD, allows us to consider each problematic related to Roman siege machines in order to acquire an understanding as complete as possible. The virtual restitution of several well described machinae allows us to formulate experimental hypotheses of the main siege engines and to infer physical, logistical and strategic corollaries. By taking into account the operating context of the machines, we subscribe to an overall approach, the specific method of Technical history. This scientific methodology enables a parallel reflection about scientific mediation solutions, allowing everyone to access and give thought to the developed problematic
Lin, Wen-Hwan, and 林文環. "The Research Regarding the Amendment of Outer Wall Roller Shutter’s Damages Caused by Typhoons---Technical Fab as Example." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/91906468330355219444.
Full text國立交通大學
工學院碩士在職專班營建技術與管理組
95
Typhoon is the most serious natural disaster that threatens Taiwan. During the period from January to October, 2005, three typhoons pounded Taichung, which resulted in serlous damages on outer wall roller shutter of one of the largest scale technical fab of in Central Taiwan Science Park. Production equipments are therefore in great risk. In order to study how to improve the performance of the roller shuttle’s to resistance to typhoon, we collect data of damages of the outer wall roller shuttle ruined by typhoons. Statistical data together with structure failure report are then analyzed, and ways of improvement will be proposed. Further approach is based on theoretical analysis of the roller shutter. Both wind pressure stress analysis and improvement techniques are studied. Starting from the survey of commonly used roller shutter, we compare the thickness, material, and size, and detail components of different brands, and finally propose resolutions for the roller shuttle to withstand and resist the wind pressure of typhoon. The future study will be focused on pursuing a permanent resolution for the roller shutter, which is, namely, the “automatic backbone” research and development for protection from typhoon. Automatic backbone is the most economic and effective way of improving the performance which provide best protection from typhoon impact. The present study has completed the first product testing and review, and has proposed the “best” solution for the outer wall roller shutter of technical fab.
Fané, Mountaga. "Responsabilité civile en cas de diffamation sur Internet : étude comparative entre les systèmes québécois et français." Thèse, 2019. http://hdl.handle.net/1866/22784.
Full textKŘÍŽEK, Luboš. "Změna přístupu k zajištění požární ochrany na Jaderné elektrárně Temelín po havárii na jaderné elektrárně Fukušima." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-253474.
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