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1
Yuen, Nicholas Y. "Communication on limited-mobility underwater sensor networks." Scholarly Commons, 2013. https://scholarlycommons.pacific.edu/uop_etds/232.
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More than 70% of Earth's surface is covered by water. Earth's underwater world holds many exciting forms of life and undiscovered possibilities. It is sometimes referred to as "The Unexplored Frontier." We still do not fully understand the entirety of what happens in this mysterious world. The field of underwater sensor networks is a means of monitoring these environments. However, underwater sensor networks are still fraught with challenges; one of the main challenges being communication. In this thesis we look to improve communication in underwater sensor networks. We expand a simulation environment that models node to node communication in an underwater sensor network that utilizes AquaNodes. We address issues with the first iteration of the environment, expand it to include packet-loss for acoustic communication, and make the addition of three dimensional topologies. We found that acoustic packet-loss had a larger impact on the energy consumption of the communication algorithms with more acoustic communication and three dimensional topologies do not affect the communication algorithms. In addition to expanding the simulation environment we also explore using UAVs as a means of extracting data out of underwater sensor network. We conduct field experiments to characterize radio communication, develop an energy model to understand the energy limitations of an UAV, and develop overall policies for using an UAV with an underwater sensor network that utilizes AquaNodes. We learned that node to node radio communication range on the surface of the water had shorter ranges than on land. We also learned that node to UAV communication range was dependant on the altitude of the UAV. Overall, we found that using an UAV as a data mule was a viable method of extracting data out of certain underwater sensor network configurations.
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Vaughan, Martin Paul. "Alloy and phonon scattering-limited electron mobility in dilute nitrides." Thesis, University of Essex, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438143.
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Kinser-Traut, Jennifer Yelverton. "Voices of Marginalized Youth: An Exploration of Mathematical Learning, Limited School Choice, and High Mobility." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/612587.
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School choice is touted to alleviate inequities in students' schooling experiences. It is seen as a way out of under-performing neighborhood schools. However, it can be challenging for marginalized students to leave their neighborhood school and transfer into a school of their choice. The reason for this challenge is the inequitable opportunities surrounding school choice, such as elite charter schools located outside of city centers and credit-recovery schools targeting marginalized youth (Garcia, 2008). As marginalized students try to navigate the school choice landscape, they may engage in sequences of transfers increasing the chance that they will ultimately drop out. Since most school choice research explores student experiences using quantitative research, general school mobility patterns and outcomes are understood. What is not well established is the individual student's more nuanced experiences engaging in school choice, the choices they make, and the resulting outcome, particularly for marginalized youth. Additionally, little research has explored the impact of transferring on students' mathematical learning. This dissertation examined how highly mobile, marginalized youth described their experiences transferring schools and learning mathematics. This study used an analytic framework that foregrounded students' empowerment, their ability to achieve their goals. The framework focuses on agency and opportunity structures as key components of empowerment. This framework was used to examine three highly mobile, marginalized youths' experiences engaging in school choice and learning mathematics. This analysis of empowerment highlighted the challenging opportunity structures these youth faced when engaging in school choice and the assets they utilized in making decisions. It also identified important opportunity structures that supported, or hindered, these students' mathematical learning. Finally, the resulting empowerment (both mathematical and school choice empowerment) that these students' experienced was examined. The findings demonstrate the complexity of engaging in school choice and reveal both challenges and successes engaging in school choice and mathematical learning. The school choice findings indicate that students may be falsely empowered when engaging in school choice, they may engage in new chance transfers offering them a new start, and/or they may increase their mobility by "trying on schools" for a good fit. The mathematical findings suggest that students may experience mathematical learning empowerment and/or earning empowerment, and that recognizing this difference is important; develop a procedural understanding of mathematics that may create further challenges as highly mobile youth transfer schools; and experience productive opportunity structures that may be essential in supporting students' mathematical empowerment. The findings suggest important implications for highly mobile marginalized youths' mathematical achievement, school choice policy, and further research. Specifically, the findings suggest the importance of using a framework that examines opportunity structures, assets, and empowerment to better understand and support students' engagement in school choice.
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Chan, Natalie. "Development of an instrument to assess transport ability for people with low vision and limited mobility." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10055682/.
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This research project aims to develop an instrument that can measure the ability of people with low vision and/or mobility problems to use public transport. Focus groups were used to design a self-assessment instrument to help identify and measure existing problems with public transport navigation. Rasch analysis, an analytical technique used to convert ordinal difficulty ratings into interval measures, was used to validate the questionnaire. Difficulty ratings were calculated for each transport item and Transport Ability was calculated for each participant to develop a Transport Ability scale. The first survey included 22 public transport items and was applied to 414 people with various combinations of visual ability and mobility problems. The second survey included a further 24 transport items related to accessible transport modes and was applied to a further 308 participants, who had a combination of different visual ability levels and mobility aid requirements. The second validated instrument was then applied to three different case studies to investigate whether Transport Ability and Life Space score, which measures the extent and frequency of travel, could help to assess the effectiveness of transport schemes and skills training. The self-reported transport instrument developed in this study has demonstrated sufficient internal and construct validity to reliably measure the effect of Transport Ability for people with a combination of vision and mobility impairments. Principle Component Analysis of the residuals indicated that there were no other significant dimensions being measured. Overall, people with low vision and mobility aid users were found to experience lower Transport Ability and Life Space scores. However, the combination of both mobility aid use and low vision was not found to have a compounding effect on Transport Ability. Application of the instrument to transport accessibility schemes indicates that Transport Ability can be used to measure the benefit of schemes to individuals.
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Kašná, Marie. "Design elektrického skútru pro seniory." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445375.
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The work deals with a design of an electric mobility scooter for seniors or people with limited mobility with regard to technical, ergonomic and aesthetic requirements. The final design is based on the results of design and technical analysis. Emphasis is placed on the needs of the target user, for whom the scooter means freedom of movement. The design solves insufficient storage space even for larger luggage, thanks to the different arrangement of internal components. We managed to create a product with a more psychologically friendly expression, with optimal ergonomics, acceptable to the wider environment
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Rauh, Nadine [Verfasser], Josef F. [Akademischer Betreuer] Krems, Josef F. [Gutachter] Krems, and Mark [Gutachter] Vollrath. "Interaction with Limited Resource Systems in the Context of Sustainable Mobility: User Experience when Dealing with Electric Vehicles in Critical Range Situations / Nadine Rauh ; Gutachter: Josef F. Krems, Mark Vollrath ; Betreuer: Josef F. Krems." Chemnitz : Technische Universität Chemnitz, 2018. http://d-nb.info/121482014X/34.
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Duffin, Anthony C., University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "Structural and functional changes in the feet of young people with Type 1 diabetes mellitus." THESIS_CSTE_SFH_Duffin_A.xml, 2002. http://handle.uws.edu.au:8081/1959.7/408.
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Diabetes can affect the structure and function of the foot, resulting in severe limitation of mobility and reduction of life expectancy. Early warning signs include limited joint mobility (LJM), soft tissue changes, high plantar pressure (HPP), high pressure time integrals (P/TI) and plantar callus. These abnormalities were examined in 216 young people with diabetes and 57 controls. The fingers, toes, ankle subtalar and first metatarsophalangeal joints shows reduced motion and the plantar aponeurosis was thicker in diabetic subjects. Skin thickness was the same for diabetic and control subjects. LJM in the feet was more common in males and older subjects. Subtalar and finger LJM was associated with early sensory nerve changes and finger LJM was associated with retinopathy and higher HbAtc. Thicker plantar aponeurosis was associated with male gander and larger feet. High peak pressure, high P/TI and callus were no more common in diabetic subjects than controls. However, high P/TI and callus were associated with early sensory nerve changes in young people with diabetes. Diabetic subjects with callus were significantly older than those without callus. Those with HPP had higher body mass index and less motion at the first MTP joints than those without HPP. Although plantar callus, HPP and high P/TI were no more common in young people with diabetes these abnormailities may be complicated by diabetes. Cushioning, custom orthoses or both in combination significantly reduced peak pressure and P/TI in diabetic subjects.<br>Doctor of Philosophy (PhD)
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Indráková, Kristýna. "Návrh zóny 30 v Českých Budějovicích v blízkosti Dubičného potoka." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409811.
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The diploma thesis deals with designing new local roads, zone 30 and reconstruction of road Vrbenská street, that is situated in České Budějovice. These roads are connected to Vrbenská street. The construction is composed of seven branches in total. These branches will serve as access points to new buildings. The project is designed with consideration to static traffic, public transport, pedestrian traffic and barrier-free movement of people with limited mobility. The project also includes design visualizations.
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Teller, David. "Ressources limitées pour la mobilité : utilisation, réutilisation, garanties." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2004. http://tel.archives-ouvertes.fr/tel-00011239.
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Qu'il s'agisse de téléphones portables ou de serveurs web, d'applets ou de paquets réseau, les systèmes matériels et logiciels sont contraints par des limitations sur les ressources telles que la mémoire, l'utilisation du disque ou les connexions au réseau. En particulier, il est nécessaire de contrôler l'allocation et la désallocation des ressources ainsi que le respect de protocoles, afin de prévenir les dépassements de capacité ou d'autres formes d'attaque ou d'accidents. Ce aspect, pourtant central dans la conception d'applications mobiles et communicantes, est ignoré par la majorité des algèbres de processus. Afin de contribuer à résoudre ce problème, nous avons étudié la notion de ressources. Nous avons formalisé cette notion dans le contexte de calculs conçus autour de la mobilité de sites, tels que les Mobile Ambients, ou de la mobilité de noms, comme le pi-calcul. Nous avons ainsi mis en évidence les mécanismes d'allocation et de désallocation de ressources et dégagé des méthodes pour prendre en compte les ressources et de les réutiliser intelligemment. De plus, les systèmes de types que nous avons conçus permettent de garantir statiquement qu'un système, au cours de son exécution, ne nécessitera pas plus de ressources qu'il n'est autorisé à en utiliser.
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Arzoumanian, Edouard. "Corrélations spatiotemporelles en couches limites turbulentes : cas d'une mobilité de la paroi." Aix-Marseille 2, 1987. http://www.theses.fr/1987AIX22058.
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Etude dans deux configurations: paroi plane et fixe et paroi cylindrique et mobile. On detecte les structures coherentes et on en precise les formes, les directions et les domaines d'influence. On met en evidence deux "modes dominants". Etude des roles respectifs des differents processus physiques responsables de la perte de coherence dans la region interne de la couche limite
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Conceição, Ricardo Alexandre Alves Fonseca da. "Novo percurso de Lisboa. Caso de estudo - 2ª circular: entre limite e interface." Master's thesis, Faculdade de Arquitetura de Lisboa, 2013. http://hdl.handle.net/10400.5/5847.
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Miranda, Rui Miguel Carvalho. "2ª Circular - Entre Limites e Interface. Espaços públicos multimodais." Master's thesis, Faculdade de Arquitetura de Lisboa, 2013. http://hdl.handle.net/10400.5/5982.
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Arzoumanian, Edouard. "Corrélations spatiotemporelles en couches limites turbulentes cas d'une mobilité de la paroi /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602405p.
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Singer, David Marc. "Uranium and strontium (bio)geochemistry : limits on uranium and strontium mobility in the environment /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Garrido, Gonçalo João Antunes. "A nova linha de Lisboa. 2ª circular: entre limite e interface." Master's thesis, Faculdade de Arquitetura de Lisboa, 2013. http://hdl.handle.net/10400.5/5843.
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Wood, Andrew B. "The limits of social mobility : social origins and career patterns of British generals, 1688-1815." Thesis, London School of Economics and Political Science (University of London), 2011. http://etheses.lse.ac.uk/223/.
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Late eighteenth-century Britain was dominated by two features of economic life that were a major departure from previous eras, the economic growth of the Industrial Revolution and almost constant warfare conducted on a previously unprecedented scale. One consequence of this was the rapid expansion, diversification and development of the professions. Sociologists and economists have often argued that economic development and modernisation leads to increasing rates of social mobility. However, historians of the army and professions in the eighteenth-century claim the upper levels of the army were usually isolated from mobility as the highest ranks were dominated by sons of the aristocracy and landed elite. Some claim social status was more important for career success in the late eighteenth-century army compared to its earlier counterpart, which if true may have led to declining rates of social mobility for the upper levels of the army. This PhD thesis investigates the limits of social mobility during this period by examining the social origins and career patterns of the highest professional rank in the army, generals. This study finds that generals were not isolated from social mobility. Modernisation did lead to increasing rates of social mobility among generals. However, mobility was limited in some respects. The rates of social mobility for generals were much lower than ordinary officers. In addition, most moves up the social hierarchy were fairly shallow. Generals usually came from relatively high levels of society and hence they were generally only moving from a high social position to a slightly higher one.
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Leite, Francisco Maria Gentil Pimentel Perestrelo. "2ª Circular: entre limite e interface. As transversalidades através do espaço público." Master's thesis, Faculdade de Arquitetura de Lisboa, 2012. http://hdl.handle.net/10400.5/5778.
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Militelli, Fernanda Amorim. "Transformação urbana: alcances e limites: o exemplo de Bogotá." Universidade Presbiteriana Mackenzie, 2015. http://tede.mackenzie.br/jspui/handle/tede/381.
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Previous issue date: 2015-01-19<br>Fundo Mackenzie de Pesquisa<br>Bogota, in the early 90 s, was internationally known as one of the most
violent cities in the world, Haunted by the drug cartels and tormented by
its urban chaos. Then, ten years later, the city is awarded with the Golden
Lion Award in the Venice Biennale.
This research intends to look to understand the suddenly transformation
of the Colombian capital city, and try to understand its inner actions, seen
in conformity with its urban policies and plans.
Starting in three articulated axis: urban mobility, public spaces and urban
projects in Bogota, between 1995 and 2003, this study tries to
comprehend the reaches and limits of the city changes.<br>Bogotá no início dos anos 1990 era reconhecida internacionalmente como
umas das cidades mais violentas do mundo, atormentada pelo
narcotráfico e caos urbano. Dez anos depois, recebera o premio Leão de
Ouro na X Mostra de Arquitetura da Bienal de Veneza.
O presente trabalho busca verificar quais foram os fenômenos que
incorreram na capital Colombiana e denotaram sua transformação
urbana. Compreendida a partir de complementares e sucessivas ações,
que foram materializadas, através dos projetos e políticas urbanas
aplicadas na cidade.
Analisados a partir de três eixos articulados e hierarquizados, mobilidade,
espaço público e habitação, os projetos urbanos implantados em Bogotá
entre 1995 e 2003, visam compreensão e reflexão dos alcances e limites
desta transformação urbana.
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Lowgren, Andrea. "City limits : reputation and the sexual cartography of women's mobility in mid-twentieth-century San Francisco /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2007. http://uclibs.org/PID/11984.
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Seebauer, Sebastian, Veronika Kulmer, Martin Bruckner, and Eva Winkler. "Carbon emissions of retail channels: the limits of available policy instruments to achieve absolute reductions." Elsevier, 2016. http://epub.wu.ac.at/6683/1/Carbon.pdf.
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Buying the same product at the neighborhood store or at a shopping mall implies different carbon emissions. This paper quantifies carbon impacts of consumer choices of retail channel and shop location (where to buy), extending footprint assessments of product choices (what to buy). Carbon emissions of shopping situations are shown in the current situation, in a business-as-usual projection in 2020, and in policy scenarios with changed market shares of shopping situations. The analysis covers the product categories: groceries, clothing, and electronics & computers, from the shopping situations: neighborhood store, town center, discount store, shopping mall, and mail order/online selling. Stages of the product life cycle which differ between shopping situations are examined: freight transport, warehousing, store operation, and the last mile of the consumers' trip to the store. Carbon emissions of shopping situations amount to 2.7% of overall Austrian emissions in the base year. Dominant car use on the last mile substantially contributes to the overall footprint. In the business-as-usual scenario, carbon emissions from shopping situations increase by +33% until 2020, corresponding to 4.2% of the overall Austrian emissions target for 2020. Restricting shopping malls or supporting neighborhood stores could limit this increase to +25% and +20%, respectively. Facilitating online selling achieves no notable effects. The study underlines that an absolute reduction in private demand for household goods is necessary, as available policy instruments aiming at shopping situations fail to compensate the steady growth in private consumption.
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Griffin, Claire. "L'identite professionnelle des professeurs d'anglais "locuteurs natifs" exercant en France depuis le traité de Maastricht : Entre conservation ontologique et acculturation. Les limites du capital natif." Thesis, Paris 3, 2012. http://www.theses.fr/2012PA030128/document.
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Depuis l’ouverture des concours de recrutement de l’Éducation nationale aux ressortissants européens, au début des années 1990, de nombreux Britanniques et Irlandais ont rejoint le contingent d’enseignants certifiés et agrégés d’anglais. Ces professeurs d’anglais « locuteurs natifs » (PALN) n’ont pas été socialisésen France et mettent parfois des années à décoder le système éducatif français et leur intégration professionnelle dépend de nombreux facteurs. Si le CAPES et l’Agrégation constituent une étape cruciale dans le processus d’interculturation, parce qu’ils initient les candidats anglophones aux normes, règles et valeurs du système éducatif français et de l’anglais-objet d’étude universitaire et d’enseignement-apprentissage en France, ces premiers ne sont en réalité que les prémisses d’une longue construction de l’identité professionnelle de ces enseignants. La présente enquête, élaborée dans une perspective ancrée et compréhensive et qui s’appuie sur des méthodes mixtes, a permis au chercheur d’explorer comment les PALN perçoivent leur vie et leur identité professionnelles. Une analyse du discours des participants et des interactions enquêteur-enquêté amène le chercheur au cœur de la problématique identitaire des enseignants« natifs » qui se retrouvent face à un paradoxe : si le « capital natif » est un atout pour réussir les concours de recrutement, une interculturation (Demorgon, 1999) « trop » réussie peut fragiliser ce même capital qui, pour conserver son intérêt et rester dynamique, doit être sans cesse actualisé<br>Since the early 1990s, EU citizens have been able to sit the competitive examinations which give access to qualified teacher status within the French education system, without needing to have French nationality. This change has attracted British and Irish candidates who were not necessarily qualified to teach before moving to France and who, as native English-speaking teachers (NESTs), were not socialized there. Consequently, it sometimes takes them years to decode the French education system. For these teachers, comfortable professional integration depends on their capacity to adjust not only to the requirements of French schools, but also to the French approach to teaching and learning English. Taking the CAPES is one step towards interculturation, since by doing so, English-speaking candidates gain an insight into the norms, rules and values of the French education system and see how English is taught at university and in schools in France. However, passing the exam is only the first step towards building aprofessional teacher identity, which is a long process. The present investigation into the professional identity of NESTs from the UK and Ireland was constructedfrom a Grounded Theory and interpretative perspective using mixed methods. The researcher seeks to understand how participants perceive their professional identity and life as English teachers in the French education system. An analysis of participants’ discourse and of interviewer/participant interaction brings tolight the following paradox: the initial “gift” which helps NESTs through the rigorous state examinations can be weakened by strong interculturation and needs to be updated and enriched in order to remain an asset
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Pays, Christophe. "Politiques et pratiques de gestion des carrières : enjeux et limites d'un renouvellement : analyse monographique de cinq entreprises françaises du secteur tertiaire." Lille 1, 1998. http://www.theses.fr/1998LIL12006.
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Le renouvellement des politiques et des pratiques d'entreprises a l'egard de la gestion des carrieres est devenu l'une des preoccupations majeures des directions des ressources humaines francaises au cours des annees 1980 et 1990. L'objet de cette recherche est d'etudier les enjeux et les limites d'un nouveau modele de gestion des carrieres caracterise par une recherche d'adequation entre les besoins de l'entreprise (offre de carriere) et les aspirations des salaries (demande de carriere). Pour se faire une enquete empirique, comparative et non representative - sous la forme d'audits sociaux construits a partir d'un panel de bilans sociaux - a ete conduite aupres d'un echantillon de quelques grandes entreprises tertiaires francaises. Par ailleurs, une synthese de la litterature anglo- saxonne et francaise sur le theme de la gestion des carrieres a ete realisee. Il apparait d'abord que des tendances communes ressortent, tant sur le plan definitionnel (approche participative, individualisee et strategique de la gestion des carrieres dans le cadre d'un systeme de gestion) que dans la mise en oeuvre de certaines pratiques (implantation d'outils d'orientation professionnelle, clarification des regles de promotions-mutations. . . ). Toutefois, la prise en compte de plusieurs variables organisationnelles permet de nuancer le renouvellement en cours. Des ecarts significatifs au niveau de l'offre de carriere des differentes entreprises sont ainsi observes malgre des discours manageriaux similaires. Trois objectifs peuvent etre alors distingues selon les cas etudies : (1) accroitre la mobilite (strategie d'adaptation), (2) developper le potentiel humain (strategie de selection) et (3) ameliorer l'implication (strategie de mobilisation) du personnel. Dans cette triple perspective, l'existence d'un + marche de l'emploi et des carrieres ; dans l'entreprise est questionnee en relation notamment avec les concepts de + recrutement interne ; et de + marches internes du travail<br>To modernize career management policies has become a major concern of french human resources managers in recent years. This thesis aims at studying the advantages and the limits of a new career management model based on the integration of organizational needs (career supply) and individual needs (career demand). An empirical, comparative and no representative analysis - social audits with data collected over 16 years from 1978 through 1993 - was conducted among five large firms in tertiary activities. Moreover, a survey of current career management theory and research - in french and anglo-saxon literature - was realized. In spite of significant differences on the career supply level, the results indicate that common trends appear between firms. On the one hand, organizational career management is increasingly viewed as a system with a participative, individualized and strategic approach. On the other hand, specific practical tools are implemented (couselling, job rotation, controlling promotion, announcing vacancies. . . ). From an organizational perspective, three goals have been identified : first, to increase the functional moves (strategy of adaptation); second, to develop the human potential (strategy of selection) ; and third, to improve the motivation of the employees (strategy of mobilization). Finally, the reality of an + employment and career market; inside firms is examined in relation to + internal recruitment; and + internal labor markets ; concepts
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Gilbertson, Amanda Kate. "Within the limits : respectability, class and gender in Hyderabad." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:48ee5b92-421d-4773-8880-642422179888.
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Drawing on twelve months of fieldwork in suburban Hyderabad, India, this thesis contributes to emerging debates on the Indian new middle classes and postcolonial middle classes more generally. I challenge images of a homogenous middle class enjoying the benefits of liberalization by highlighting the diversity in wealth, lifestyle and access to opportunities within this class sector. Contrary to the pervasive image of a hedonistic and morally corrupt new middle class, I assert the centrality of moral discourses to the construction of middle-class identity in Hyderabad. Middle-class Hyderabadis engage in moral discourses of ‘respectability’ and ‘open-mindedness’ in relation to caste, consumption, education, and women’s public and domestic roles. These discourses of morality are central to the reproduction of class and gender inequality as successfully balancing the demands of respectability and open-mindedness is particularly difficult for those with fewer resources such as the lower middle class and for women who are expected to embody authentic Indianness in their demure comportment, ‘traditional’ attire and commitment to ‘Indian’ family values, but are also liable to being judged ‘backward’ if their clothing and lack of education and paid employment are seen to be in conflict with fashion and open-mindedness. The focus on balance and compromise in middle-class Hyderabadis’ narratives echoes other work on postcolonial middle classes that has emphasised people’s efforts to adhere to local notions of respectable behaviour that are central to national identities while also attempting to align themselves with a ‘modern’ global consumer culture. In contrast to much of this literature, however, I challenge the notion that modernity and tradition, the local and the global are objects of desire in and of themselves and instead argue that they function as important reference points in discourses that legitimate the dominant position of men and those of upper class-caste status.
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Ferreira, Inês Gil de Almeida. "Segunda circular: entre limite a interface. O espaço público como suporte de coesão urbana." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2013. http://hdl.handle.net/10400.5/6663.
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Mičudová, Barbora. "Polyfunkční dům." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226189.
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It is a design of stand alone Poly-Functional Building with one basement and three storeys. The building is divided into two parts. The housing and administrative part. Both parts are independent of each other. The first underground floor is a mass garage and accessories for both parts of the building. The first floor is mostly made up of the administrative part of the multipurpose building. In the second and third floor are apartments, each for three apartments per floor. In the second floor there are apartments for people with limited mobility. The structural system of the building is made by porotherm and monolithic structure. Multifunctional building is covered with single layer flat roof.
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Dumas-Martin, Antoine. "L’Entente Québec-France et ses limites : le cas des médecins de famille." Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/5445.
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Officiellement, l’Entente entre le Québec et la France en matière de reconnaissance mutuelle des qualifications professionnelles avait pour principal objectif de faciliter la mobilité de la main-d’œuvre qualifiée entre le Québec et la France. Nous avons essayé d’en apprécier l’impact pour une profession particulière : médecin spécialiste en médecine de famille. Nous constatons que l’Entente, étant donné l’objectif de facilitation de la mobilité, a eu une portée somme toute limitée. Cette limitation tient surtout au fait que l’Entente soit subordonnée aux dispositions législatives, règlementaires et administratives internes à chacune des Parties, soit la France et le Québec. C’est donc dire que les principales limites se situent non pas au niveau des relations internationales mais au niveau national.
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Taous, Moncef. "L'émergence des Africains-Américains dans les technostructures des Etats-Unis de 1954 à 1984 : origines, réalités et limites." Paris 4, 1996. http://www.theses.fr/1996PA040269.
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Cette thèse analyse les développem̀ents historique,économique et politique de la présence noire dans les hautes sphères du pouvoir entre 1954 et 1984. Elle suggère la prise en compte des aspects symboliques du positionnement des élites noires au sein des organismes décisionnels,et rend intelligibles les risques majeurs de récupération et de manipulation du processus d'institutionnalisation de l'action politique des Afro-Américains. La conclusion principale de la thèse est que la prétendue perméabilité des centres de pouvoir des Etats-Unis,n'est réellement qu'une "ouverture-bluff" visée conservatrice. Cette thèse ouvre la voie à une théorie de récupération de l'élite noire institutionnalisée<br>This thesis proposes a subjective model designed to interpret the emergence of African-Americans into the technostructures of America from 1954 to 1984. .
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Engström, Adam. "Metal mobility during metamorphism and formation of orogenic gold deposits: Insights from the Dalradian of Scotland." Thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-92297.
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Orogenic gold deposits occur within metamorphic belts throughout the world and have through time represented the source for over 25% of the world’s gold production. Although orogenic gold deposits are of great economic importance, controversies exist on the subject of fluid and metal sources and there have been few studies of gold´s distribution and mobility outside of large economic deposits. Research made by Pitcairn et al. (2006), on the Mesozoic Otago and Alpine schists of New Zealand, observed systematic depletion of Au and a suite of 6 associated elements with increasing metamorphic grade. This depletion was identical to the suite of elements enriched in the Otago gold deposits and provided strong evidence that orogenic gold deposits form due to metamorphic processes. The mobilization of metals was attributed to the recrystallization of sulfide minerals during prograde metamorphism causing dehydration and release of metal-rich metamorphic fluids. This thesis is part of a larger project aimed at testing the “Otago model” in a classic metamorphic terrain: The Dalradian metamorphic belt of Scotland. Rocks in the study are from the southern higlands group and the Appin and Argyll group which range in metamorphic grade from chlorite zone greenschist facies to sillimanite zone amphibolite facies. Three main aspects, which supplement earlier research, are addressed in this study: 1) Investigation of the sulfide paragenesis at Loch Lomond and Stonehaven was carried out to map the evolution of sulfides with metamorphic grade and the possible relations to the distribution of gold. Using SEM scanning to quantify the abundance of different sulfide minerals together with previous data on the Glen Esk region, a complex sulfide evolution pattern for the Dalradian Supergroup is identified. The sulfide evolution describes the same changes in texture and chemistry as observed in the Otago Schists but is made complex by the difference in geological evolution for the different regions. 2) Reinvestigation of the higher grade zones of Glen Esk (staurolite to sillimanite) was carried out as samples from the previous study were very weathered. Results from ultralow detection limit methods (HG-AFS and a gold detection method developed by Pitcairn et al. 2006) showed significant systematic depletion of Au and As with metamorphic grade. From chlorite to sillimanite zone average values of Au and As were showed to decrease by 65% and 88% respectively. Furthermore, a suite of 10 major and 12 trace elements were analyzed using ICP methods showing no trends of systematic depletion with increased metamorphic grade. 3) Investigation of Pb-Ag Veining and vein samples from each of the metamorphic index mineral zones in the Glen Esk area was carried out to identify fluid composition and ore mineralogy. Using microthermometry and Raman laser spectroscopy two distinct fluids were identified. The first type is a H2O-CO2-N2-salt fluid of low salinity (0-15 weight percent NaCl equivalent) and medium temperature (150 to 250 °C) locally containing minor amounts of CH4. It is found in the veins from the mineral index zones of Glen Esk and was formed in the ductile regime most likely related to late stage metamorphic devolatilization released during Caledonian uplift of the Dalradian. Pb-Ag veins from the locality of Hardhill host the second fluid type which was formed in the brittle regime accompanied by brecciation as a high salinity (15 to 20 weight percent NaCl equivalent) low temperature (70-140°C) H2O-salt fluid with calcic composition was precipitated. This fluid bears much resemblance to Carboniferous calcic brines responsible for economic base-metal precipitation with widespread occurrence in southwest Scotland and Northern Ireland. Results of this thesis show many similarities with the Otago study, with a connection between metal mobility and metamorphic grade, providing support for the dehydration model as a viable mechanism for the generation of orogenic gold deposits.
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Zaidi, Syed Muhammad Zaier Abbas. "Mobility and safety evaluation of integrated dynamic merge and speed control strategies in work zones." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4613.
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An already calibrated and validated VISSIM model for Simplified Dynamic Lane Merge System (SDLMS) in accordance with the real life work zone was modified with a VSL through Vehicle Actuated Programming (VAP) code. Three different logics were coded each for VSL alone, early SDLMS+VSL and late SDLMS+VSL. All these logics were fine tuned with several test runs before finalizing it for the final simulation. It is found through the simulation of above mentioned scenarios that for low and medium volume levels (V0500, V1000 and V1500), there is no significant difference between the Maintenance of Traffic (MOT) plans for mean throughputs. However, for higher volume levels (V2000 and V2500), late SDLMS with and without VSL produced higher mean throughputs for all compliance rates and truck percentages except when the demand volume was 2,500 vph and compliance of 60%, where it produces the significantly lower mean throughputs. In terms of travel time through the work zone, results indicated that there is no significant difference between MOT types for demand levels of V0500 and V1000 when compliance is 40% or less but for compliance of 60% and more, only demand volume level that is not significantly different from other MOT types is V0500. This study revealed that VSL increases travel time through the work zone. This might be due to non-compliant vehicles that follow the compliant vehicle ahead unless they find a sufficient gap in adjacent lane to pass the compliant vehicle. It is also found out that VSL makes the system safer at higher volumes (2,000 vph and 2,500 vph). This was observed through safety surrogate measures selected for this study.; Another outcome of this study is that the addition of VSL to the dynamic merge systems helps in improving the overall safety of the system by lowering speed variances and deceleration means of the vehicles travelling through the work zone. The passage of traffic through the work zone is made safer when a speed control is integrated to a dynamic merge system. It can be inferred from the simulation results that integrated SDLMS and VSL systems have better performance in terms of traffic mobility and safety than existing individual controls and also show that the integrated SDLMS and VSL system has more potential than each individual systems.; In recent years, there has been a considerable increase in the amount of construction work on the U.S. national highways. Most of the work undertaken is the reconstruction and rehabilitation of the existing transportation networks. Work zones in the United States are likely to increase in number, duration and length due to emphasis on repair and highway reconstruction as a significant portion of all federal-aid highway funds are now geared toward highway rehabilitation. The challenge of mobility is particularly acute in work zone areas as road repair and construction intensifies traffic issues and concentrates them in specific locations and at specific times. Due to the capacity drop, which is the result of lane closure in work zone area, congestion will occur with a high traffic demand. The congestion increases number and severity of traffic conflicts which raise the potential for accidents; furthermore traffic operational properties of roadway in work zone area become worse. Intelligent Transportation System (ITS) technologies have been developed and are being deployed to improve the safety and mobility of traffic in and around work zones. In several states in the US, the use of Dynamic Merge Controls also known as Dynamic Lane Merge (DLM) system has been initiated to enhance traffic safety and to improve traffic flow in work zone areas. The DLM usually takes two forms; dynamic early merge and dynamic late merge. The use of variable speed limit (VSL) systems at work zones is also one of those measures. VSL systems improve safety by helping the driver in determining the maximum speed that drivers should travel. Besides adding improvement to safety, they are also expected to improve mobility at the work zones.; The main goal of this study is to evaluate the safety and operational effectiveness of the dynamic merge systems i.e. the dynamic early lane merge and dynamic late lane merge, in the presence of VSL system. More specifically, the VISSIM model is utilized to simulate a two-to-one lane configuration when one out of the two lanes in the work zone is closed for traffic. Six different scenarios were adopted to assess the effectiveness of these scenarios under different traffic demand volumes and different drivers' compliance rates to the messages displayed by the systems. These scenarios are; bullet] Work Zone without VSL and without SDLMS or the current Motorist Awareness System (MAS) bullet] Work Zone with VSL and without SDLMS bullet] Work Zone with VSL and Early SDLMS bullet] Work Zone with VSL and Late SDLMS bullet] Work Zone with early SDLMS and without VSL bullet] Work Zone with early SDLMS and without VSL<br>ID: 029050385; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.S.)--University of Central Florida, 2010.; Includes bibliographical references (p. 189-192).<br>M.S.<br>Masters<br>Department of Civil and Environmental Engineering<br>Engineering and Computer Science
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Guedes, Dimitri Taurino. "Preval?ncia, fatores associados e efeitos da viol?ncia dom?stica na mobilidade em idosos: evid?ncias do estudo imias (international mobility in aging study) sob a perspectiva epidemiol?gica do curso da vida." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/21169.
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Previous issue date: 2015-02-06<br>A capacidade de mover-se com independ?ncia e seguran?a ? fundamental para a execu??o das atividades de vida di?ria e manuten??o da qualidade de vida do indiv?duo. Diversos fatores, dentre eles o envelhecimento podem contribuir para seu decl?nio. Estudos t?m demonstrado associa??o entre experi?ncias de viol?ncia dom?stica (VD) e diversos problemas de sa?de f?sica e mental. At? o momento, n?o h? estudos que tenham avaliado a associa??o entre experi?ncias de VD no curso de vida e limita??es de mobilidade na senesc?ncia. OBJETIVOS: estimar a preval?ncia da VD (f?sica e psicol?gica) em idosos, e avaliar o impacto da VD no curso de vida na limita??o de mobilidade. MATERIAIS E M?TODO: Estudo observacional anal?tico a partir da primeira coleta de dados do estudo longitudinal International Mobility in Aging Study (IMIAS). Idosos (n = 1995) de ambos os sexos entre 65 e 74 anos de cinco localidades distintas (Kingston e Saint-Hyacinthe, Canad?; Tirana, Alb?nia; Maniazales, Col?mbia; e Natal, Brasil) participaram do estudo. Dados sobre vari?veis sociodemogr?ficas, econ?micas, condi??es de sa?de e experi?ncias de VD (f?sica e psicol?gica) durante o curso de vida foram coletados. A limita??o de mobilidade na senesc?ncia foi avaliada pelo Short Physical Performance Battery (SPPB) e pela dificuldade de andar 400 metros e/ou subir um lance de escadas. As preval?ncias foram avaliadas mediante frequ?ncias absolutas e relativas das exposi??es ? VD, limita??o de mobilidade e co-vari?veis. Diferen?as de g?nero, bem como entre cidades foram analisadas utilizando o teste de qui-quadrado. Associa??o entre exposi??o ? VD e limita??o de mobilidade foi avaliada utilizando a regress?o log?stica bin?ria multivariada, ajustando pelas co-vari?veis. An?lise de media??o foram utilizadas, para avaliar poss?veis caminhos entre a exposi??o ? VD no curso de vida e a limita??o de mobilidade. RESULTADOS: A viol?ncia f?sica foi rara, com valores entre 0,63 e 0,85%. Relatos de viol?ncia psicol?gica variaram entre 3,2% e 23,5% (homens) e de 9% para 26% (mulheres). Mulheres experimentaram mais viol?ncia do que os homens em Saint-Hyacinthe (homens: 3,2% vs mulheres: 14%, p <0,001), Tirana (homens: 4,3% vs mulheres: 10,3%, p = 0,017), em Manizales (homens: 8,3 % vs mulheres: 18,3%, p = 0,004) e Natal (homens: 11,1% vs mulheres: 26%, p = 0,002). Em geral, o baixo suporte social pelo parceiro foi associado com a VD. Estar trabalhando foi associado a vitimiza??o entre os homens, enquanto o oposto foi verdade para as mulheres. Arranjos de vida Multi-familiares e baixo suporte pelos parceiros, filhos e fam?lia foram associados com a VD. Baixo suporte social foi da maior import?ncia para as mulheres do que os homens. A VD f?sica foi associada tanto com o SPPB < 8 (OR 1,623 95%IC 1,161-2,269) como com a dificuldade para andar 400 metros e/ou subir um lance de escadas (OR 1,394 95%IC 1,063-1,829). A limita??o de mobilidade decorrente da viol?ncia f?sica no curso de vida pelo parceiro ?ntimo foi mediada pelas condi??es cr?nicas (efeito 25,56% 95%IC 0,036-0,277) e depress?o (efeito 33,05% 95%IC 0,087-0,333). No caso da viol?ncia f?sica por outros familiares, a limita??o de mobilidade foi mediada pelas condi??es cr?nicas (efeito 20,85% 95%IC 0,022-0,202), n?o ades?o ? pr?tica de atividades f?sicas (efeito 34,14% 95%IC 0,076-0,351) e depress?o (efeito 44,40% 95%IC 0,144-0,315). CONCLUS?ES: A viol?ncia dom?stica no curso de vida ? uma realidade, que pode acarretar consequ?ncias que favorecem a limita??o de mobilidade em idosos. S?o necess?rias pol?ticas p?blicas que combatam efetivamente a viol?ncia dom?stica, garantindo um envelhecimento mais digno e independente funcionalmente.<br>A capacidade de mover-se com independ?ncia e seguran?a ? fundamental para a execu??o das atividades de vida di?ria e manuten??o da qualidade de vida do indiv?duo. Diversos fatores, dentre eles o envelhecimento podem contribuir para seu decl?nio. Estudos t?m demonstrado associa??o entre experi?ncias de viol?ncia dom?stica (VD) e diversos problemas de sa?de f?sica e mental. At? o momento, n?o h? estudos que tenham avaliado a associa??o entre experi?ncias de VD no curso de vida e limita??es de mobilidade na senesc?ncia. OBJETIVOS: estimar a preval?ncia da VD (f?sica e psicol?gica) em idosos, e avaliar o impacto da VD no curso de vida na limita??o de mobilidade. MATERIAIS E M?TODO: Estudo observacional anal?tico a partir da primeira coleta de dados do estudo longitudinal International Mobility in Aging Study (IMIAS). Idosos (n = 1995) de ambos os sexos entre 65 e 74 anos de cinco localidades distintas (Kingston e Saint-Hyacinthe, Canad?; Tirana, Alb?nia; Maniazales, Col?mbia; e Natal, Brasil) participaram do estudo. Dados sobre vari?veis sociodemogr?ficas, econ?micas, condi??es de sa?de e experi?ncias de VD (f?sica e psicol?gica) durante o curso de vida foram coletados. A limita??o de mobilidade na senesc?ncia foi avaliada pelo Short Physical Performance Battery (SPPB) e pela dificuldade de andar 400 metros e/ou subir um lance de escadas. As preval?ncias foram avaliadas mediante frequ?ncias absolutas e relativas das exposi??es ? VD, limita??o de mobilidade e co-vari?veis. Diferen?as de g?nero, bem como entre cidades foram analisadas utilizando o teste de qui-quadrado. Associa??o entre exposi??o ? VD e limita??o de mobilidade foi avaliada utilizando a regress?o log?stica bin?ria multivariada, ajustando pelas co-vari?veis. An?lise de media??o foram utilizadas, para avaliar poss?veis caminhos entre a exposi??o ? VD no curso de vida e a limita??o de mobilidade. RESULTADOS: A viol?ncia f?sica foi rara, com valores entre 0,63 e 0,85%. Relatos de viol?ncia psicol?gica variaram entre 3,2% e 23,5% (homens) e de 9% para 26% (mulheres). Mulheres experimentaram mais viol?ncia do que os homens em Saint-Hyacinthe (homens: 3,2% vs mulheres: 14%, p <0,001), Tirana (homens: 4,3% vs mulheres: 10,3%, p = 0,017), em Manizales (homens: 8,3 % vs mulheres: 18,3%, p = 0,004) e Natal (homens: 11,1% vs mulheres: 26%, p = 0,002). Em geral, o baixo suporte social pelo parceiro foi associado com a VD. Estar trabalhando foi associado a vitimiza??o entre os homens, enquanto o oposto foi verdade para as mulheres. Arranjos de vida Multi-familiares e baixo suporte pelos parceiros, filhos e fam?lia foram associados com a VD. Baixo suporte social foi da maior import?ncia para as mulheres do que os homens. A VD f?sica foi associada tanto com o SPPB < 8 (OR 1,623 95%IC 1,161-2,269) como com a dificuldade para andar 400 metros e/ou subir um lance de escadas (OR 1,394 95%IC 1,063-1,829). A limita??o de mobilidade decorrente da viol?ncia f?sica no curso de vida pelo parceiro ?ntimo foi mediada pelas condi??es cr?nicas (efeito 25,56% 95%IC 0,036-0,277) e depress?o (efeito 33,05% 95%IC 0,087-0,333). No caso da viol?ncia f?sica por outros familiares, a limita??o de mobilidade foi mediada pelas condi??es cr?nicas (efeito 20,85% 95%IC 0,022-0,202), n?o ades?o ? pr?tica de atividades f?sicas (efeito 34,14% 95%IC 0,076-0,351) e depress?o (efeito 44,40% 95%IC 0,144-0,315). CONCLUS?ES: A viol?ncia dom?stica no curso de vida ? uma realidade, que pode acarretar consequ?ncias que favorecem a limita??o de mobilidade em idosos. S?o necess?rias pol?ticas p?blicas que combatam efetivamente a viol?ncia dom?stica, garantindo um envelhecimento mais digno e independente funcionalmente.
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Kiade, Sara. "Stabilizzazione di un canale DTLS finalizzata all'utilizzo in sistemi IoT mobili: standard, limiti e proposte risolutive." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18135/.
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In alcuni scenari, come quello dell'IoT, è facile trovarsi in situazioni in cui un client, che comunica con un server, cambi frequentemente indirizzo IP.
L'obbiettivo di questo studio è di andare alla ricerca di un metodo adatto a gestire la situazione in cui, durante la comunicazione tra un server e un client DTLS, quest'ultimo cambi IP e sia per questo costretto a stabilire una nuova connessione mediante un costoso full handshake.
Lo studio è stato svolto in collaborazione con Gyordan Caminati. La sottoscritta si è concentrata sull'analisi delle RFC, dei documenti ufficiali e di altre fonti quali libri, siti web, forum e discussioni. Il collega, invece, ha approfondito la documentazione relativa alla libreria OpenSSL, raccogliendo le informazioni necessarie alla realizzazione della parte implementativa. Le informazioni raccolte sono state poi confrontate, unite ed elaborate al fine di raggiungere l'obbiettivo prefissato.
Il presente documento di tesi illustra le fasi dello sviluppo di un canale mono-ancorato basato sul protocollo DTLS, svoltosi mediante l'approfondimento del protocollo e della sua implementazione nella libreria OpenSSL.
L'analisi degli strumenti messi a disposizione dal protocollo e dalla libreria OpenSSL ha evidenziato che i meccanismi esistenti non sono sufficientemente adeguati al raggiungimento dell'obbiettivo. Ciò ha portato a progettare, implementare e valutare sperimentalmente un nuovo sistema, battezzato Fast Resumption.
Partendo dal sistema di Fast Resumption si è riusciti ad arrivare a quattro diverse soluzioni, tra le quali spicca quella chiamata SCT, che risulta essere quella di maggiore applicabilità. Essa permette di ottenere un canale monoancorato perfettamente stabile, ma richiede uno sforzo computazionale aggiuntivo nella fase di handshake.
L'implementazione finale realizzata, propone una soluzione in cui i meccanismi preesistenti e la Fast Resumption coesistono ed ognuno di essi entra in funzione al momento opportuno.
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Oliveira, Bruna Silva. "Tradu??o, adapta??o cultural e propriedades psicom?tricas da vers?o brasileira do Short-Form of the Mobility Assessment Tool (MAT-sf)." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16715.
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Previous issue date: 2012-04-23<br>Objectives: to translate and assess the psychometric properties of the Brazilian short-form of the Mobility Assessment Tool (MAT-sf) in Brazilians community elderly. Methds: the 12 items MAT-sf went through the process of translation and back translation into Portuguese of the Brazil, considering the semantic and cultural adaptation. In a sample of 150 aged 65-74 years living in the community, the instrument's psychometric properties were evaluated by analysis of convergent and construct validity and test-retest reliability. The main outcomes measures used for validation included in the battery of tests of physical ability, self-repor measures of functional limitations, health, depression, cognitive and sex. The test-retest reliability of the instrument was assessed using the intra-class correlation coefficient (ICC), 40 subjects were reassessed after an interval of 14 days of assessment. Results: the concurrent validity for the MAT-sf was evidenced by significant correlations with SPPB (r = 0,53), number of functional limitations (r = -0,62) and depressive symptoms (r = -0,45). The construct validity of the instrument was measured by gradual and significant increase of the MAT-sf scores with high levels of physical performance and with positive self-reported health, also found that MAT-sf scores were statistically differents according to sex. The variation in MAT-sf scores (R2 = 0,41) was explained by SPPB, number of limitations for activities of daily life and depressive symptoms. High values for test-retest reliability was evidencend by ICC = 0,94, 95% CI = 0,90 0,97. Conclusions: the Brazilian version of the short-form of the Mobility Assessment Tool has values of validity and reliability to ensure its use in elderly populations living in communities<br>Objetivos: traduzir e avaliar as propriedades psicom?tricas da vers?o brasileira do short-form of the Mobility Assessment Tool (MAT-sf) em idosos comunit?rios brasileiros. M?todos: os 12 itens do MAT-sf passaram pelo processo de tradu??o e retrotradu??o para a l?ngua portuguesa do Brasil, considerando a equival?ncia sem?ntica e adapta??o cultural. Em uma amostra de 150 idosos de 65 a 74 anos residentes em comunidade, as propriedades psicom?tricas do instrumento foram avaliadas atrav?s da an?lise das validades concorrente e de constructo e da confiabilidade teste-reteste. Os principais desfechos utilizados para a valida??o inclu?ram o desempenho na bateria de testes de avalia??o da capacidade f?sica, medidas de auto-relato de limita??es funcionais, de sa?de auto-percebida, sintomatologia depressiva, fun??o cognitiva e sexo. A confiabilidade teste-reteste do instrumento foi avaliada por meio do coeficiente de correla??o intra classe (CIC), para isso, 40 idosos foram reavaliados ap?s um intervalo de 14 dias da avalia??o. Resultados: a validade concorrente para o MAT-sf foi evidenciada por significativas correla??es com o SPPB (r = 0,53), n?mero de limita??es funcionais (r = -0,62) e sintomatologia depressiva (r = -0,45). A validade de constructo do instrumento foi verificada pelo aumento significativo e gradual dos escores do MAT-sf com altos n?veis de desempenho f?sico e relato de boa sa?de auto percebida, al?m disso, observou-se que os escores do MAT-sf foram estatisticamente diferentes de acordo com o sexo. A varia??o dos escores do MAT-sf (R2= 0,41) foi explicada pelos escores do SPPB, n?mero de limita??es para atividades da vida di?ria e sintomatologia depressiva. Valores elevados para confiabilidade teste-reteste foram verificados pelo CIC = 0,94, IC 95% = 0,90 - 0,97. Conclus?es: a vers?o brasileira do short-form of the Mobility Assessment Tool (MAT-sf) possui valores de validade e confiabilidade que asseguram o seu uso em popula??es idosas que vivem em comunidades<br>2020-01-01
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Caminati, Gyordan. "Stabilizzazione di un canale DTLS finalizzata all'utilizzo in sistemi IoT mobili: valutazione sperimentale dei limiti e proposte migliorative." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18137/.
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Nello scenario attuale è molto comune avere a che fare con dispositivi mobili che ospitano applicativi connessi a una rete. Tali dispositivi, spostandosi, possono cambiare indirizzo IP.
Il presente documento di tesi illustra le fasi di progettazione, implementazione e valutazione sperimentale di un canale mono-ancorato basato sul protocollo DTLS, implementato mediante l'utilizzo della libreria OpenSSL.
Obiettivo dello studio era stabilizzare il canale DTLS al fine di renderlo resistente al cambiamento di IP da parte del Client.
Poiché i meccanismi messi a disposizione dal protocollo e dalla libreria non erano sufficientemente adeguati al raggiungimento del risultato voluto, si è andati alla ricerca di approcci alternativi, che hanno portato allo sviluppo di un sistema innovativo che abbiamo deciso di chiamare \textit{Fast Resumption}.
Il metodo da noi progettato e implementato agisce a basso livello, sfruttando alcune caratteristiche delle Socket UDP.
Dal sistema generale di \textit{Fast Resumption} sono derivate quattro diverse soluzioni, che, con i loro pregi e difetti, si adattano a diverse situazioni. La soluzione di maggiore applicabilità è stata battezzata SCT (Socket Connessa Temporanea) e permette di stabilire un canale mono-ancorato perfettamente stabile, al prezzo di un piccolo sforzo computazionale aggiuntivo nella fase di handshake.
L'implementazione finale da noi realizzata, propone una soluzione in cui i meccanismi preesistenti e la Fast Resumption coesistono ed ognuno di essi entra in funzione al momento opportuno.
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Cornelius, Steffen. "Charge transport limits and electrical dopant activation in transparent conductive (Al,Ga):ZnO and Nb:TiO2 thin films prepared by reactive magnetron sputtering." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-156145.
Full textAbstract:
Transparent conductive oxides (TCOs) are key functional materials in existing and future electro-optical devices in the fields of energy efficiency, energy generation and information technology. The main application of TCOs is as thin films transparent electrodes where a combination of maximum electrical conductivity and transmittance in the visible to nearinfrared spectral range is required. However, due to the interdependence of the optical properties and the free electron density and mobility, respectively, these requirements cannot be achieved simultaneously in degenerately doped wide band-gap oxide semiconductors. Therefore, a detailed understanding of the mechanisms governing the generation of free charge carriers by extrinsic doping and the charge transport in these materials is essential for further development of high performance TCOs and corresponding deposition methods.
The present work is aimed at a comprehensive investigation of the electrical, optical and structural properties as well as the elemental composition of (Al,Ga) doped ZnO and Nb doped TiO2 thin films prepared by pulsed DC reactive magnetron sputtering. The evolution of the film properties is studied in dependence of various deposition parameters through a combination of characterization techniques including Hall-effect, spectroscopic ellipsometry, spectral photometry, X-ray diffraction, X-ray near edge absorption, Rutherford backscattering spectrometry and particle induced X-ray emission.
This approach resulted in the development of an alternative process control method based on the material specific current-voltage pressure characteristics of the reactive magnetron discharge which allows to precisely control the oxygen deficiency of the sputter deposited films.
Based on the experimental data, models have been established that describe the room temperature charge transport properties and the dielectric function of the obtained ZnO and TiO2 based transparent conductors. On the one hand, these findings allow the prediction of material specific electron mobility limits by identifying the dominating charge carrier scattering mechanisms. On the other hand, new insight is gained into the origin of the observed transition from highly conductive to electrically insulating ZnO layers upon the incorporation of increasing concentrations of Al at elevated growth temperatures.
Moreover, the Al and Ga dopant activation in ZnO have been quantified systematically for a wide range of Al concentrations and deposition conditions. A direct comparison of the Ga and Al doping efficiency demonstrates that Ga is a more efficient electron donor in ZnO. Further, it has been shown that high free electron mobilities in polycrystalline and epitaxial Nb:TiO2 layers can be achieved by reactive magnetron sputtering of TiNb alloy targets. The suppression of rutile phase formation and the control of the Nb dopant activation by fine tuning the oxygen deficiency have been identified as crucial for the growth of high quality TiO2 based TCO layers.
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Porras, Vazquez Alejandro. "A molecular approach to the ultimate friction response of confined fluids." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI087.
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Afin de contrôler les pertes d'énergie dans les systèmes mécaniques, un film mince de lubrifiant est souvent introduit entre les solides en contact. Les contacts lubrifiés ponctuels fonctionnent en régime élastohydrodynamique, caractérisé par des pressions élevées (de l’ordre du GPa) et des épaisseurs de film minces (de l’ordre de 100 nanomètres). A des taux de cisaillement élevés, le fluide peut présenter une contrainte de cisaillement limite dont l’origine physique est encore incertaine. Actuellement, les modèles empiriques disponibles pour la prédiction du frottement ne décrivent pas la réponse ultime des lubrifiants dans ces conditions sévères. De plus, l'analyse expérimentale in-situ est très difficile à réaliser en raison du confinement et des fortes pressions. Ainsi, dans cette thèse, le problème est abordé sous l’angle de la modélisation à l’échelle atomique. Le comportement en cisaillement de trois de fluides (un fluide de traction, un lubrifiant modèle et un lubrifiant industriel pour le secteur aérospatial) est analysé par simulation Dynamique Moléculaire. Les résultats numériques sont ensuite comparés qualitativement et quantitativement à des essais expérimentaux. La réponse en frottement est indépendante du profile de vitesse dans l’épaisseur du confinement, ce dernier apparaissant plutôt comme une conséquence des conditions limites aux surfaces. Le régime de frottement limite apparaît naturellement lorsque le lubrifiant est soumis à des conditions thermodynamiques caractéristiques d’un état solide. Dans ce cas, la dynamique des molécules est fortement ralentie. L’énergie d’activation augmente rapidement avec la pression, de sorte que la diffusion devient négligeable à forte pression, même aux taux de cisaillement sévères imposés dans les simulations Dynamique Moléculaire. La réponse macroscopique à ce phénomène est donc une saturation de la valeur du frottement. Ce travail s’achève en jetant les bases d’une modélisation qui pourra permettre la prédiction du frottement lubrifié sous conditions sévères<br>In order to control energy losses in mechanical systems, a thin film of lubricant is often introduced between the solids in contact. The lubricated point contacts operate in the elastohydrodynamic regime, characterized by high pressures (of the order of GPa) and thin film thicknesses (of the order of 100 nanometers). At high shear rates, the fluid may exhibit a limiting shear stress whose physical origin is still uncertain. At present, the empirical models available for the prediction of friction fail to describe the ultimate response of lubricants at these severe operating conditions. In addition, in-situ experimental analysis is very difficult to achieve due to confinement and high pressures. Thus, in this thesis, the problem is approached from the angle of modeling at the atomic scale. The shear behavior of three fluids (a traction fluid, a model lubricant and an industrial lubricant for the aerospace industry) is analyzed by Molecular Dynamics Simulation. The numerical results are then compared qualitatively and quantitatively with experimental tests. The friction response is independent of the velocity profile in the confinement thickness, the latter appearing rather as a consequence of boundary conditions at the surfaces. The limiting friction regime naturally occurs when the lubricant is subjected to thermodynamic conditions characteristic of a solid state. In this case, the dynamics of the molecules is strongly slowed down. The activation energy increases rapidly with the pressure, so that the diffusion becomes negligible at high pressure, even at the severe shear rates imposed in the Molecular Dynamics simulations. The macroscopic response to this phenomenon is thus a saturation of the value of friction. This work ends by laying the foundations of a modeling that will allow the prediction of lubricated friction under severe conditions
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Widmer, Johannes. "Charge transport and energy levels in organic semiconductors." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-154918.
Full textAbstract:
Organic semiconductors are a new key technology for large-area and flexible thin-film electronics. They are deposited as thin films (sub-nanometer to micrometer) on large-area substrates. The technologically most advanced applications are organic light emitting diodes (OLEDs) and organic photovoltaics (OPV). For the improvement of performance and efficiency, correct modeling of the electronic processes in the devices is essential. Reliable characterization and validation of the electronic properties of the materials is simultaneously required for the successful optimization of devices. Furthermore, understanding the relations between material structures and their key characteristics opens the path for innovative material and device design. In this thesis, two material characterization methods are developed, respectively refined and applied: a novel technique for measuring the charge carrier mobility μ and a way to determine the ionization energy IE or the electron affinity EA of an organic semiconductor. For the mobility measurements, a new evaluation approach for space-charge limited current (SCLC) measurements in single carrier devices is developed. It is based on a layer thickness variation of the material under investigation. In the \"potential mapping\" (POEM) approach, the voltage as a function of the device thickness V(d) at a given current density is shown to coincide with the spatial distribution of the electric potential V(x) in the thickest device. On this basis, the mobility is directly obtained as function of the electric field F and the charge carrier density n. The evaluation is model-free, i.e. a model for μ(F, n) to fit the measurement data is not required, and the measurement is independent of a possible injection barrier or potential drop at non-optimal contacts. The obtained μ(F, n) function describes the effective average mobility of free and trapped charge carriers. This approach realistically describes charge transport in energetically disordered materials, where a clear differentiation between trapped and free charges is impossible or arbitrary. The measurement of IE and EA is performed by characterizing solar cells at varying temperature T. In suitably designed devices based on a bulk heterojunction (BHJ), the open-circuit voltage Voc is a linear function of T with negative slope in the whole measured range down to 180K. The extrapolation to temperature zero V0 = Voc(T → 0K) is confirmed to equal the effective gap Egeff, i.e. the difference between the EA of the acceptor and the IE of the donor. The successive variation of different components of the devices and testing their influence on V0 verifies the relation V0 = Egeff. On this basis, the IE or EA of a material can be determined in a BHJ with a material where the complementary value is known. The measurement is applied to a number of material combinations, confirming, refining, and complementing previously reported values from ultraviolet photo electron spectroscopy (UPS) and inverse photo electron spectroscopy (IPES). These measurements are applied to small molecule organic semiconductors, including mixed layers. In blends of zinc-phthalocyanine (ZnPc) and C60, the hole mobility is found to be thermally and field activated, as well as increasing with charge density. Varying the mixing ratio, the hole mobility is found to increase with increasing ZnPc content, while the effective gap stays unchanged. A number of further materials and material blends are characterized with respect to hole and electron mobility and the effective gap, including highly diluted donor blends, which have been little investigated before. In all materials, a pronounced field activation of the mobility is observed. The results enable an improved detailed description of the working principle of organic solar cells and support the future design of highly efficient and optimized devices<br>Organische Halbleiter sind eine neue Schlüsseltechnologie für großflächige und flexible Dünnschichtelektronik. Sie werden als dünne Materialschichten (Sub-Nanometer bis Mikrometer) auf großflächige Substrate aufgebracht. Die technologisch am weitesten fortgeschrittenen Anwendungen sind organische Leuchtdioden (OLEDs) und organische Photovoltaik (OPV). Zur weiteren Steigerung von Leistungsfähigkeit und Effizienz ist die genaue Modellierung elektronischer Prozesse in den Bauteilen von grundlegender Bedeutung. Für die erfolgreiche Optimierung von Bauteilen ist eine zuverlässige Charakterisierung und Validierung der elektronischen Materialeigenschaften gleichermaßen erforderlich. Außerdem eröffnet das Verständnis der Zusammenhänge zwischen Materialstruktur und -eigenschaften einen Weg für innovative Material- und Bauteilentwicklung. Im Rahmen dieser Dissertation werden zwei Methoden für die Materialcharakterisierung entwickelt, verfeinert und angewandt: eine neuartige Methode zur Messung der Ladungsträgerbeweglichkeit μ und eine Möglichkeit zur Bestimmung der Ionisierungsenergie IE oder der Elektronenaffinität EA eines organischen Halbleiters. Für die Beweglichkeitsmessungen wird eine neue Auswertungsmethode für raumladungsbegrenzte Ströme (SCLC) in unipolaren Bauteilen entwickelt. Sie basiert auf einer Schichtdickenvariation des zu charakterisierenden Materials. In einem Ansatz zur räumlichen Abbildung des elektrischen Potentials (\"potential mapping\", POEM) wird gezeigt, dass das elektrische Potential als Funktion der Schichtdicke V(d) bei einer gegebenen Stromdichte dem räumlichen Verlauf des elektrischen Potentials V(x) im dicksten Bauteil entspricht. Daraus kann die Beweglichkeit als Funktion des elektrischen Felds F und der Ladungsträgerdichte n berechnet werden. Die Auswertung ist modellfrei, d.h. ein Modell zum Angleichen der Messdaten ist für die Berechnung von μ(F, n) nicht erforderlich. Die Messung ist außerdem unabhängig von einer möglichen Injektionsbarriere oder einer Potentialstufe an nicht-idealen Kontakten. Die gemessene Funktion μ(F, n) beschreibt die effektive durchschnittliche Beweglichkeit aller freien und in Fallenzuständen gefangenen Ladungsträger. Dieser Zugang beschreibt den Ladungstransport in energetisch ungeordneten Materialien realistisch, wo eine klare Unterscheidung zwischen freien und Fallenzuständen nicht möglich oder willkürlich ist. Die Messung von IE und EA wird mithilfe temperaturabhängiger Messungen an Solarzellen durchgeführt. In geeigneten Bauteilen mit einem Mischschicht-Heteroübergang (\"bulk heterojunction\" BHJ) ist die Leerlaufspannung Voc im gesamten Messbereich oberhalb 180K eine linear fallende Funktion der Temperatur T. Es kann bestätigt werden, dass die Extrapolation zum Temperaturnullpunkt V0 = Voc(T → 0K) mit der effektiven Energielücke Egeff , d.h. der Differenz zwischen EA des Akzeptor-Materials und IE des Donator-Materials, übereinstimmt. Die systematische schrittweise Variation einzelner Bestandteile der Solarzellen und die Überprüfung des Einflusses auf V0 bestätigen die Beziehung V0 = Egeff. Damit kann die IE oder EA eines Materials bestimmt werden, indem man es in einem BHJ mit einem Material kombiniert, dessen komplementärer Wert bekannt ist. Messungen per Ultraviolett-Photoelektronenspektroskopie (UPS) und inverser Photoelektronenspektroskopie (IPES) werden damit bestätigt, präzisiert und ergänzt. Die beiden entwickelten Messmethoden werden auf organische Halbleiter aus kleinen Molekülen einschließlich Mischschichten angewandt. In Mischschichten aus Zink-Phthalocyanin (ZnPc) und C60 wird eine Löcherbeweglichkeit gemessen, die sowohl thermisch als auch feld- und ladungsträgerdichteaktiviert ist. Wenn das Mischverhältnis variiert wird, steigt die Löcherbeweglichkeit mit zunehmendem ZnPc-Anteil, während die effektive Energielücke unverändert bleibt. Verschiedene weitere Materialien und Materialmischungen werden hinsichtlich Löcher- und Elektronenbeweglichkeit sowie ihrer Energielücke charakterisiert, einschließlich bisher wenig untersuchter hochverdünnter Donator-Systeme. In allen Materialien wird eine deutliche Feldaktivierung der Beweglichkeit beobachtet. Die Ergebnisse ermöglichen eine verbesserte Beschreibung der detaillierten Funktionsweise organischer Solarzellen und unterstützen die künftige Entwicklung hocheffizienter und optimierter Bauteile
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Wei, Jhong-Ting, and 魏仲廷. "Studies of Indoor Position for Limited Mobility Environment." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/28463279444608479285.
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碩士<br>大同大學<br>通訊工程研究所<br>103<br>Since the costs of bluetooth devices are low, its general acceptance is higher and they are common in the market, hence we hope to utilize bluetooth devices in indoor position. Since Apple Inc. has already launch its iBeacon micro position system, and products by Xiaomi Inc. were used as references, this thesis aims to realize the application of low power bluetooth in indoor position. We focused on mobile indoor position, meaning we utilized the common bluetooth tracking devices to fabricate mobile indoor position for the purpose of taking care of elders, children and pets. Hence portable bluetooth devices are used and the tag of cellphones and bluetooth will appear nonlinear because RSSI is influenced by distance. Non-linearity is the indirect effects signal strength has on cellphones emission power. The effect of indoor channel would make the relationship between signal strength and distance complicated, making distance judgment difficult. Increasing the accuracy of location will clarify the relationship between distance and signal strength, therefore added algorithms to solve problems created by automatic gain. Cellphones will face the problem of ping-pong when multiple bluetooth devices are broadcasting. The root of the problem is created by the time-relation of bluetooth broadcast channels. A proposed solution for ping-pong problem in the advertising for tag is develop in this thesis, and finally we successfully realize a mobile indoor position system.
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Tan, Yan-Wen, and 譚硯文. "Hole Mobility Measurement of Conjugated Polymer by Space Charge Limited Method." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/18100363461471080743.
Full textAbstract:
碩士<br>國立臺灣大學<br>物理學研究所<br>88<br>Space charge limited transport is one of the ways of measuring
carrier mobility in semiconducting materials. In this work,
measurements have been performed on conjugated organic polymer,
poly(2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vunylene) or
MEH-PPV. A simultaneous current and capacitance versus applied
voltage measurement was carry out to validate the space charge
limited conduction. An anomalous electric field dependence was
observed and discussed within the framework of energy disorder
hopping model.
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Yang, Hsiang-Jen, and 楊翔任. "Grid-based Dynamic Maintenance Algorithms for Sensor Networks with Limited Mobility." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/68391954927680791447.
Full textAbstract:
碩士<br>元智大學<br>資訊工程學系<br>97<br>Coverage holes in wireless sensor network, could occur due to unexpected failure, initial uneven deployment, and certain special event. But, most of time, they are still enough sensors to provide the requested coverage by moving some sensor to new location with limited distance.
In this thesis, we propose a grid-based algorithm for dynamic maintenance in wireless sensor network. The movement of each sensor is decided autonomously on the basis of limited local information. Sensor uses the information from neighboring grids to first uncover the coverage hole, and then to determine the moving direction and distance for recovering the coverage holes. Simulation results show that the proposed algorithm performs better than other method in terms of energy efficient, better coverage and can be use on different shapes of grid.
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Huang, Hsin Hao, and 黃信豪. "Limited Renewal: Political Elite Mobility in Chinese Party-State, 1978-2008." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/24267268879286452286.
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博士<br>國立政治大學<br>政治研究所<br>96<br>What kinds of political elites have been recruited and promoted by the leadership of the Chinese Communist Party (CCP) in the Reform Era? What are the characteristics of elite mobility in China? Is there a consistent inner-logic governing the selection and promotion of Chinese elites? To answer these questions, the thesis explores the continuity and change of political elite mobility in Mainland China, from 1978 to 2008.
Theoretically, the author reveals the inner-logic of elite recruitment throughout China’s reform era by using the explanatory framework of organizational theory against the background of communist regime transition. According to the organization logic, “economic development” is merely a functional tool serving the higher ends of “one-party dictatorship” - the survival prerequisite for the CCP. Therefore, due to Jiang and Hu’s succession of party courses set by Deng, China’s elite recruitment and mobility have consistently embodied this organizational logic: While balancing between the survival prerequisite of one-party dictatorship and the functional target of economic development, the CCP has, on the one hand, adjusted its membership configuration in response to changing environment and organizational goals; whereas on the other hand, controlled the adjustment to a degree posting no threat to its ruling position, hence produced the characteristics of limited renewal within China’s elite mobility.
To attest the theoretical hypothesis of limited renewal, the author conducts the systematic empirical studies on all the political elites who have worked on province and ministry level positions (and above) within the Chinese government and communist party from March, 1978 to March, 2008. As the empirical result shows, and consequently, confirms the hypothesis: the CCP did have assigned significant weight to the survival consideration in the process of elite recruitment. At the same time, despite the recent scholars focus on the rise of Chinese technocrats, the author however finds that, among the rising elites, those who worked longer in, or promoted faster to, the government and/or party positions, the crucial similarity they share lies not in the technocratic background but their party-position appointments on a lower level immediately before their promotions to leadership positions. This pattern of promotion demonstrated that the CCP has been using the party-positions experience as a required qualification for promotion, so as to ensure the elites’ alliance with party interest and loyalty to party ideology. Moreover, these recruiting and promoting principles have undergone no systematic changes throughout the period of the Reform Era.
Finally, from the perspective of elite mobility, the author attempts to depict the potential direction of China’s regime development in the future. Having approved the pattern of limited renewal in China’s elite configuration and mobility, the author believes that the current recruiting criteria and the underlying organizational logic have significantly contributed to the success of the CCP in maintaining one-party dictatorship amid rapid economic development. Therefore, the author predicts that the likelihood for elite conflicts would remain fairly low, if the promotion requirement of party-position experience continues to function. But nevertheless, the research of elite mobility would uncover the inner logical relationship between the apparently-contradictory goals of dictatorship and development, which paved the way for the survival and the success of the CCP.
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Lei, Chin-hao, and 雷晉豪. "The Zhou Road- The National Highway in an Age of Limited Mobility." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/81505889307993581942.
Full textAbstract:
碩士<br>國立成功大學<br>歷史學系碩博士班<br>97<br>The Western Zhou—the so-called “feudal era” of China—was a world of limited mobility, where the majority of the population was characterized by stagnation caused by a subsistence economy and clannish organization. Thus, mobility was limited to the nobility—the ruling class of an aristocratic regime—in the Western Zhou society. Furthermore, the right to travel was restricted to administrative, diplomatic and military purposes. This awareness of limitations of mobility in the Western Zhou dynasty is the precondition to fully understand the function of the Zhou Road.
For the purpose of investigation, the author devised a model to investigate the Zhou Road. A road, as part of the transportation system, should not be separated from other factors, including vehicles and the social conditions of a particular period. Interwoven and correlated to each other, roads, vehicles, and social conditions should be addressed as a whole. They are inseparable from a comprehensive understanding of the road, including its architecture, geography, the way by which it was managed and operated, and the sociopolitical or socioeconomic effects of the road.
Since social demarcation was institutionalized in the “feudal era”, the application of this model is particularly effective to the Zhou Road. Chariots—the only vehicles intended for efficient long-distance transport in the Western Zhou period—were monopolized by the ruling class. Furthermore, mobility was the privilege of the nobility, even though only politically motivated travels were granted. These factors resulted in the following consequences: First, the Zhou Road was built to be level, straight, and wide in order to facilitate chariot transportation, a speedy vehicle with limited maneuverability. These requirements imposed limitations on the distribution of the Zhou Road to plain and valley in northern China, where terrain and climate conditions were suitable for chariot transportation. Second, the geographical distribution of the Zhou Road was nucleated at the two capitals, Hao-jing鎬京 and Luo-yi洛邑, and other major political centers of regional states such as Lu魯, Wei衛 and Qi齊, a manifestation of its political function. Third, as the infrastructure of the Western Zhou Dynasty, the Zhou Road played an important part in government affairs, including administrative communication, resources transportation, and military activities; it contributed to the unification of the dynasty. Fourth, the central and local governments provided road services, including supplements; guides; fords; bridges; and accommodations for authorized travelers along their journey. These services were granted as part of public expenditures and were complimentary for authorized travelers. Last, the decline of the Zhou Road in the Eastern Zhou period were the consequences of a series of changes, including the change in vehicles from chariots to cavalry and infantry, the emergence of water transport as a competing mode of transportation, the separation of regional states from centralized control, and the collapse of the Western Zhou socioeconomic structure. The impact brought by the changes in vehicles, social conditions, and mode of transport led to the decline and eventual demise of the Zhou Road system, but it also anticipated the construction of a new national transportation system by the Qin秦 and Han漢 Empires.
By examining the Zhou Road in the Western Zhou context, this thesis provides new perspectives on the Zhou Road. As a holistic investigation of the Zhou Road, it can not only contribute an important piece to the Western Zhou history, but also provide a basis for further investigations into roads of later Chinese dynasties. The author hopes the model can inspire cross-cultural and cross-temporal researches involving the Zhou Road.
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Lin, Wei-Chih, and 林威志. "Density Control-based Algorithms for Dynamic Maintenance in Sensor Networks with Limited Mobility." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/68754619536270206895.
Full textAbstract:
碩士<br>元智大學<br>資訊工程學系<br>97<br>In this thesis, we propose an efficient dynamic maintenance algorithm not only for recovering the coverage holes and also for balancing the node density in wireless sensor networks. For each sensor node, a polygon can be constructed with limited local information to determine the moving direction and distance in each iteration. Simulation results reveal that the proposed mechanism performs better than other maintenance algorithms in terms of coverage, convergence, energy consumption, density measures, termination and impacts of communication range.
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Brennan, Matthew. "Spatial diversity gains in wireless sensor networks through controlled limited mobility an experimental approach /." 2007. http://etd.nd.edu/ETD-db/theses/available/etd-05242007-140931/.
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Chiu, Yung-Hsiang, and 邱詠翔. "Blade coating method for vertical space-charge-limited transistor using high carrier mobility polymer." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30574778599938061029.
Full textAbstract:
碩士<br>國立交通大學<br>物理研究所<br>99<br>Comparing to high cost and complicated fabrication process of small molecule organic semiconductor devices, conjugated polymer have been widely explored because of its advantages such as soluble process and its flexibility. Although spin coating is the most common technique for casting polymer films in solution process, its material usage is low. In this work, we use the blade coating method which has been demonstrated to have a high material usage. We demonstrate that even the solubility of a polymer is low, by using the blade coating method, the polymer film can still be fabricated easily. Poly(2,5-bis(3-alkylthiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT-C14) is a kind of liquid crystal molecule. By annealing at high temperature and transient cooling, its liquid crystal phase and high carrier mobility can be obtained. PBTTT diode shows higher current density compared to poly(3-hexylthiophene -2,5-diyl) (P3HT) diode. Finally, we demonstrated the influence of different concentration tetrafluoro -tetracyanoquinodimethane (F4TCNQ) doping on the poly(9,9-di-noctylfluorene-alt -(1,4-phenylene-((4-sec-butylphenly)-imino-) -1,4-phenylene) (TFB) diode.
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TSUNG-LEE, LEE, and 李宗澧. "Research for the Demand of Limited Mobility of Elders Family Members Using Home Cars." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/21542445413749740256.
Full textAbstract:
碩士<br>華梵大學<br>工業設計學系碩士班<br>104<br>In recent years, Taiwan has rapidly moved towards an aging society. The government has put together a Long Term Care Services Act and discussions to help the elders with better social benefits and welfare have become one of the top priority issues. We can often see that when we have elders who have mobility issues in the family, transportation via cars will be our best option for traveling around. However, the height difference between the ground and the car will often cause physical pain for the elderly. Knee pain is one of the most common distress. Therefore said, I would like to use three research technics which are experimental observations, interview with experts and survey questions to conclude the difficulties encountered by elders with limited mobility. The first part, experimental observations, I invited total of 23 elders (17 mildly limited mobility, 6 sever limited mobility) to find out the main problem of getting on and off vehicles; Second parts, I have consulted with four vehicle mechanical experts to discuss the problems identified during the experimental observation and come up with recommendation on how to improve. Finally, I invited 77 special-care nurses to attend a questionnaire survey. The 3 main points of this research is the following three: 1. The inconveniency of entering the car. 2. Limited ability to move around in the car. 3. The discomfort and pain when getting off the car.
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Moreside, Janice Marie. "The effect of limited hip mobility on the lumbar spine in a young adult population." Thesis, 2010. http://hdl.handle.net/10012/5387.
Full textAbstract:
Limited hip mobility is known to affect the lumbar spine. Much of the previous research has utilized a participant population whose hip mobility is compromised due to arthritic or neurological dysfunctions. Such aetiologies may confound the outcomes, as their effects may not be limited to the hip. The purpose of this thesis was to recruit a healthy young adult population with limited hip mobility to further investigate its effect on the lumbar spine, as well as the role of exercise intervention.
Several cascading studies were conducted that were unified around a central theme of links between hip and spine function:
Study # 1 investigated the normal distribution of passive hip extension and rotation in a group of 77 males (age 19-30). Data was collected using an infra-red motion capture system and compared to goniometric measurements. The resulting angles represent the 5th – 95th percentiles, including the averages and standard deviations.
Study # 2 compared movement patterns between groups of males with limited and excessive hip mobility. Participants were required to perform simple functional activities (lunging, twisting, walking, etc) as well as use the elliptical trainer. Resulting hip and spine angles demonstrated that the men with limited hip mobility stood with a more anteriorly tilted pelvis, and assumed a posture with more lumbar and hip flexion on the elliptical trainer, compared to those with greater mobility. This, in turn, resulted in a greater lumbar compression load due to increased back muscle activity.
Study #3 involved recruitment of 24 young adult males with limited hip mobility. Their movement patterns were assessed (as in study #2), then they were assigned to one of four intervention groups: hip stretching, spine stabilizing, hip stretching combined with spine stabilization, and control. Participants in the 3 exercise groups attended supervised exercise sessions once/week for 6 weeks, but were expected to exercise a minimum of 4 times/week on their own. At the end of the 6 weeks, intake parameters were re-assessed, and movement pattern assessment repeated. Despite significant increases in available hip flexibility and/or large increases in trunk muscle endurance and trunk motor control, there were few indications that participants were any more adept at decreasing lumbar motion, or utilizing their newfound hip flexibility during functional activities.
Study #4 compared those in the 10th and 90th percentiles of available hip rotation, using a frictionless apparatus to investigate passive stiffness properties of the hip. Participants adopted a posture of upright standing, with one leg supported on a turntable apparatus, and upper body and pelvis secured. A an applied rotational moment resulted in passive hip internal and external rotation. Outcomes demonstrate that those with limited hip mobility stand with the leg more externally rotated and require a larger moment to initiate motion. Passive stiffness curves indicate greater stiffness properties in those with limited hip mobility, and more resistance to an external rotation moment than internal rotation.
Study #5 investigated passive hip stiffness in the sagittal plane, comparing those with limited and excessive hip extension. Using a frictionless jig, with the participants lying on their left side, the left hip was pulled into extension with knee position varying. Those with limited hip mobility demonstrated increased passive stiffness compared to the more mobile group, and stiffness was greater when the knee was in extension. The group with limited mobility also showed a trend of increased back extension compared to the more mobile group, when the hip and lumbar spine were both free to react to the applied extension moment.
Study #6 summarizes the spine/hip kinematics and muscle activation levels produced when using the elliptical trainer, as well as lumbar compressive and shear forces. It differs significantly from walking in that it produces more lumbar motion in flexion/extension and lumbar twist, but less lateral bend. Participants also tended to adopt a greater mean lumbar flexion angle on the elliptical, which in turn resulted in greater muscle activity in the back extensors. Varying hand position, velocity and stride length were all found to significantly affect the amount of lumbar motion. Highly phasic muscle activity is seen, with the gluteal muscles and internal obliques demonstrating the greatest activation levels.
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"Hong Kong tramway, the spine: reinterpret the channel of mobility." 1997. http://library.cuhk.edu.hk/record=b5889071.
Full textAbstract:
Mak Wing Lun Vivien.<br>"Architecture Department, Chinese University of Hong Kong, Master of Architecture Programme 1996-97, design report."<br>Includes bibliographical references.<br>Chapter 1. --- INTRODUCTION<br>Chapter 1.1. --- THE SPINE OF HONG KONG<br>Chapter 1.2. --- CLIENTS AND USERS<br>Chapter 1.3. --- CONTEXT AND SITES<br>Chapter 2. --- PROJECT ANALYSIS<br>Chapter 2.1. --- CLIENT PROFILE<br>Chapter 2.2. --- BRIEF FORMATION<br>Chapter 2.2.1. --- The Spine<br>Chapter 2.2.2. --- The First Node - Kennedy Town<br>Chapter 2.3. --- SITE CONDITIONS<br>Chapter 2.3.1. --- The Tramway<br>Chapter 2.3.2. --- Kennedy Town<br>Chapter 2.3.3. --- The Site<br>Chapter 2.4. --- DESIGN CONSTRAINTS AND OPPORTUNITIES<br>Chapter 2.4.1. --- Vision of the Spine<br>Chapter 2.4.2. --- The Node in Kennedy Town<br>Chapter 2.4.3. --- The Tram Museum<br>Chapter 3. --- PROCESS<br>Chapter 3.1. --- ESSENTIAL OBJECTIVES<br>Chapter 3.2. --- THE SPINE AND ITS NODES<br>Chapter 3.2.1. --- Exploratory Concepts<br>Chapter 3.2.2. --- Design Story<br>Chapter 3.3. --- URBAN DESIGN ISSUES AND GOALS<br>Chapter 3.4. --- BUILDING DESIGN ISSUES AND GOALS<br>Chapter 3.5. --- EVOLUTION OF THE BUILDING<br>Chapter 4. --- FINAL PROJECT<br>Chapter 4.1. --- THE SPINE<br>Chapter 4.2. --- KENNEDY TOWN TERMINAL PLAZA AND TRAM MUSEUM<br>Chapter 4.2.1. --- The Node<br>Chapter 4.2.2. --- The Museum<br>Chapter 4.2.3. --- Schedule of accommodation<br>Chapter 4.3. --- LIST OF DRAWING FILES<br>Chapter 5. --- CONCLUSION<br>Chapter 6. --- APPENDICES<br>Chapter 6.1. --- Urban Intervention Strategy - Hypothesis<br>Chapter 6.2. --- Issue Analysis - Study Area One - The Tramway<br>Chapter 6.3. --- Issue Analysis - Study Area Two - Urban Centres<br>Chapter 6.4. --- Issue Analysis - Study Area Three - The Tram System<br>Chapter 6.5. --- Precedent Studies<br>Chapter 6.6. --- Bibliography
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Frasco, Joana dos Santos. "Prospective evaluation of limited joint mobility in type 1 Diabetes Mellitus: from adolescence to adulthood." Dissertação, 2014. https://repositorio-aberto.up.pt/handle/10216/73926.
Full text
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Frasco, Joana dos Santos. "Prospective evaluation of limited joint mobility in type 1 Diabetes Mellitus: from adolescence to adulthood." Master's thesis, 2014. https://repositorio-aberto.up.pt/handle/10216/73926.
Full text
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Feng, Yan-Chang, and 馮彥昌. "The Study on Current Barrier-Free Environment of Taipei, Taichung& Transit System and the Satisfaction for Passengers with Limited Mobility." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/37skzk.
Full textAbstract:
碩士<br>國立臺東大學<br>特殊教育學系碩士班<br>103<br>This study focused on satisfaction with the status of public transport accessibility,
as well as limited mobility accessibility of facilities set up. Researchers with
high-speed rail system three stations, Taiwan Railway system three stations, MRT
nine stations, and 59 aged 18 independent and can take public transportation of
persons with reduced mobility for the study. In this study, the French mining site
survey questionnaire to observe and study. The researchers based Hsu (2013) prepared
"Taitung public transport systems in buildings with limited mobility facilities set
checklist" as the subject of nuclear standards, modifications only part of the basi
information in order to distinguish the public transportation system, and field surveys
to measure the way now, to learn about the accessibility of facilities set up the three
systems of the current situation, in order to further analyze the survey results.
Part questionnaire, researchers wereTsai (2011) prepared "physical disabilities to
use the Kaohsiung Rapid Transit accessibility equipment Satisfaction Questionnaire"
as the survey instrument, the researchers modified only basic information part, expect
to take a questionnaire to understand limited mobility and mobility who used
accessibility of care facilities satisfaction and opinions with field surveys and the
results of the questionnaire to compare the results of analysis. The results of this study
were as follows:
I. The public transportation system of qualified researchers to customize the rate of
accessibility facilities set overall pass rate of 74.41% of the total pass rate of
74.14% high-speed rail system, the system sets the passing rate of 69.31% iron,
76.41% pass rate rapid transit system, standard 60 percent, the overall can still meet specifications of existing regulations.
II. The public transport system accessibility facilities provided on the part of the
design, with a slight drop existing legislation, such as sign language, handrail
diameter and height of the handrail, step heights, toilets and flushing device,
parking space, guide the blind brick setting desk height.
III. The mobility of those interviewed in this study were mostly satisfied with the
public transport system accessibility status of the facilities set design.