Submitted by Geyciane Santos (geyciane_thamires@hotmail.com) on 2015-11-23T21:24:44Z No. of bitstreams: 1 Dissertação - Walfredo da Costa Lucena Filho.pdf: 2083187 bytes, checksum: 72f63311dba60bbea7ef2d5cc474c601 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-11-30T19:51:08Z (GMT) No. of bitstreams: 1 Dissertação - Walfredo da Costa Lucena Filho.pdf: 2083187 bytes, checksum: 72f63311dba60bbea7ef2d5cc474c601 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-11-30T19:55:39Z (GMT) No. of bitstreams: 1 Dissertação - Walfredo da Costa Lucena Filho.pdf: 2083187 bytes, checksum: 72f63311dba60bbea7ef2d5cc474c601 (MD5) / Made available in DSpace on 2015-11-30T19:55:40Z (GMT). No. of bitstreams: 1 Dissertação - Walfredo da Costa Lucena Filho.pdf: 2083187 bytes, checksum: 72f63311dba60bbea7ef2d5cc474c601 (MD5) Previous issue date: 2015-08-03 / FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas / An RFID system is typically composed of a reader and a set of tags. An anti-collision algorithm is necessary to avoid collision between tags that respond simultaneously to a reader. The most widely used anti-collision algorithm is DFSA (Dynamic Framed Slotted ALOHA) due to its simplicity and low computational cost. In DFSA algorithms, the optimal TDMA (Time Division Multiple Access) frame size must be equal to the number of unread tags. If the exact number of tags is unknown, the DFSA algorithm needs a tag estimator to get closer to the optimal performance. Currently, applications have required the identification of large numbers of tags, which causes an increase in collisions and hence the degradation in performance of the traditional algorithms DFSA. This work proposes a power control mechanism to estimate the number of tags for radio frequency identification networks (RFID). The mechanism divides the interrogation zone into subgroups of tags and then RSSI (Received Signal Strength Indicator) measurements estimate the number of tags in a subarea. The mechanism is simulated and evaluated using a simulator developed in C/C++ language. In this study, we compare the number of slots and identification time, with ideal DFSA algorithm and Q algorithm EPCglobal standard. Simulation results shows the proposed mechanism provides 99% performance of ideal DFSA in dense networks, where there are many tags. Regarding the Q algorithm, we can see the improvement in performance of 6.5%. It is also important to highlight the lower energy consumption of the reader comparing to ideal DFSA is 63%. / Um sistema de identificação por rádio frequência (RFID) é composto basicamente de um leitor e etiquetas. Para que o processo de identificação das etiquetas seja bem sucedido, é necessário um algoritmo anticolisão a fim de evitar colisões entre etiquetas que respondem simultaneamente à interrogação do leitor. O algoritmo anticolisão mais usado é o DFSA (Dynamic Framed Slotted ALOHA) devido à sua simplicidade e baixo custo computacional. Em algoritmos probabilísticos, tal como o DFSA, o tamanho ótimo do quadro TDMA (Time Division Multiple Access) utilizado para leitura das etiquetas deve ser igual à quantidade de etiquetas não lidas. Uma vez que no processo de leitura, normalmente não se sabe a quantidade exata de etiquetas, o algoritmo DFSA faz uso de um estimador para obter um desempenho mais próximo do ideal. Atualmente, as aplicações têm demandado a identificação de grandes quantidades de etiquetas, o que ocasiona um aumento das colisões e, consequentemente, a degradação no desempenho dos algoritmos DFSA tradicionais. Este trabalho propõe um mecanismo de controle de potência para estimar a quantidade de etiquetas em redes de identificação por rádio frequência (RFID). O mecanismo baseia-se na divisão da área de interrogação em subáreas e, consequentemente, subgrupos de etiquetas. Tal divisão é utilizada para realizar medições de RSSI (Received Signal Strength Indicator) e, assim, estimar a quantidade de etiquetas por subárea. O mecanismo é simulado e avaliado utilizando um simulador próprio desenvolvido em linguagem C/C++. Neste estudo, comparam-se os resultados de quantidade de slots e tempo de identificação das etiquetas, com os obtidos a partir da utilização dos algoritmos DFSA ideal e algoritmo padrão Q da norma EPCglobal. A partir dos resultados da simulação, é possível perceber que o mecanismo proposto apresenta desempenho 99% do DFSA ideal em redes densas, onde há grande quantidade de etiquetas. Em relação ao algoritmo Q, percebe-se a melhoria de 6,5% no desempenho. É importante ressaltar também a redução no consumo de energia do leitor em torno de 63% em relação ao DFSA ideal.

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This paper identifies theories and cognitive aspects that shed light on the transcultural unifying identity power of Masonic initiation rituals and illustrates this more closely using the case study of the German master ritual. It suggests that the potential of the unifying identity of Masonic rituals does not reside solely in their symbolism, but rather primarily in their enactment as performance. By breaking down the basic elements of the performative character of rituals and comparing the Masonic ritual to that of male initiation among the Chambri people of Papua New Guinea within Whitehouse’s theoretical model of modes of religiosity, this paper also explores the transcultural unifying identity power of rituals while outlining a novel explanatory framework in the field of Cognitive Science of Religion (CSR) and Ritual Studies. The present paper suggests that religious and religiously connoted transcultural unifying identity, including its inherent capacity for meaning creation and meaning attribution, is more strongly and stably achieved the more Framed Cognitive Immersion (FCI) is engaged, that is, the more corresponding cognitive processes of the participants are triggered together.:1. Why ritual research? 1.2 The concept of religion used in this study 1.3 The concept of ritual used in this study 1.4 The three basic elements of a ritual 2. Symbols and the performative character of rituals 2.1 The holistic approach to human cognition (Embodiment) 3. The power of rituals: The performative dimension 3.1 The performance of the legend of Hiram Abif 3.2 Generation of Reality 3.3 Scenic Staging 3.4 Corporeality or Physical Presence 4. Framed Cognitive Immersion (FCI) in ritual context

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Prefabricering av väggelement är en byggmetod under stark framväxt i byggandet av småhus de senaste decennierna. Kostnadseffektiviteten nämns ofta som ett skäl till att prefabricering av småhus har en sådan stor framväxt. Samtidigt har miljö- och klimatfrågan växt och då byggsektorn står för en stor del av Sveriges koldioxidutsläpp krävs det att byggsektorn ställer om till ett allt med hållbart byggande. Detta examensarbete har undersökt denna kostnadseffektivitet och hur och om en går att kombinera med ett hållbart byggande och sedan jämfört detta med platsbyggda väggar i trä. Underlag har tagits fram i samarbete med Skidstahus som producerar prefabricerade väggelement i fabriksmiljö och underlag från Derome Hus AB/ VarbergsHus vad berör småhus i lösvirke. En kostnadsjämförelse av de två byggmetoderna visar att de prefabricerade väggelement som Skidstahus framställer är mer kostnadseffektiva och det beror till stor del på att arbetstiden effektiviseras. Till viss del visar examensarbetet att materialanvändningen även resurs effektiviseras vid Skidstahus produktion och resulterar i mindre spill som därmed gynnar ett hållbart byggande. Andra viktiga aspekter för hållbarhet och livslängd såsom fukt och lufttäthet visar att prefabricerade väggar har utmaningar då skarvar och anslutningar måste vara väl utförda. Samtidigt innebär arbetet i fabriksmiljö att risken för fuktproblem minskar då det ger ett skydd för klimat och väder. Detta är medför även att byggarbetarna får en god och vältempererad arbetsmiljö. Däremot finns frågetecken kring hur byggande med prefabricerade väggelement påverkar miljön i form av transporter i förhållandet till platsbyggda väggar av lösvirke, då transporter till och från fabrik krävs. Utöver detta påverkar byggmetoden hur gestaltning och arkitektur utförs då ett platsbyggt hus i trä enklare går att utföra med valfri gestaltning. Analyserna visar sammanfattningsvis att användandet av prefabricerade väggelement i trä reducerar byggkostnader samtidigt som det kan bidra till ett hållbart byggande. Det krävs dock ytterligare studier för att jämföra den beräknade livslängden på prefabricerade väggar och platsbyggda. / Prefabrication of wood wall elements in construction of villas and terraced houses is a building method undergoing growth in recent decades. Cost efficiency is often cited as a reason why prefabrication has undergone such a large growth. At the same time, the issue of environmental impact and climate change has grown. As the construction sector accounts for a large part of Sweden's carbon dioxide emissions, the construction sector needs to become more sustainable. This thesis has examined this cost-effectiveness and if it is possible to combine with environmental sustainability. To examine this more thoroughly a comparison is made with in site-built timber-framed constructed walls. The thesis has been conducted in collaboration with Skidstahus, which produces prefabricated wall elements in a factory environment, especially for data collection. Information and data have also been collected from Varbergshus / Derome producing houses in site-built timber-framed building. A cost comparison of the building methods shows that the prefabricated wall elements manufactured by Skidstahus are more cost-effective, which can be linked to work efficiency. To some extent, the thesis also shows that material use can be optimized at Skidstahus production and therefore results in less waste, which thus reduces environmental impact. Other important factors for durability and accounted life span is the building method’s ability to handle migration of moisture and airtightness. The thesis shows that prefabricated walls have challenges, as joints and connections must be well designed. At the same time, factory production allows an environment which can reduce risk of migration of moisture as it provides protection for climate and weather impact. Another aspect is that it provides a good and well-tempered work environment for the construction worker. On the other hand, it is questionable whether the use of prefabricated wall elements affects the environment as it may increase the need of transportation in relation to on site-built timber-framed walls, as transport to and from the factory is required. In addition, the prefabricated method could influence how design and architecture is carried out while a wood house made from stick timber is more easily modified. In summary, the analysis show that the use of prefabricated wood wall elements reduces building costs while at the same time it can contribute to environmental sustainability. However, further studies are required to compare the estimated life span of the two compared building methods.

Knowing is often framed by language; this moving arrangement of parts helps us make sense of our surround, rendering possible ways of relating, acting, and responding. Situated yet unsettled, the play of language enables us to mediate distances, to make sense of our frames while seeking other ways of being with and for. Through dialogue, these works attempt to reroute and reorient so that we may learn to see each other — and to see ourselves.

This doctoral thesis concerns flanking transmission in light weight, wooden multi-storey buildings within the low frequency, primarily 20-120 Hz. The overall aim is to investigate how the finite element method can contribute in the design phase to evaluate different junctions regarding flanking transmission. Two field measurements of accelerations in light weight wooden buildings have been evaluated. In these, two sources; a stepping machine, and an electrodynamic shaker, were used. The shaker was shown to give more detailed information. However, since a light weight structure in field exhibit energy losses to surrounding building parts, reliable damping estimates were difficult to obtain. In addition, two laboratory measurements were made. These were evaluated using experimental modal analysis, giving the eigenmodes and the damping of the structures. The damping for these particular structures varies significantly with frequency, especially when an elastomer is used in the floor-wall junction. The overall damping is also higher when elastomers are used in the floor-wall junction in comparison to a screwed junction. By analysing the eigenmodes, using the modal assurance criterion, of the same structure with two types of junctions it was concluded that the modes become significantly different. Thereby the overall behavior differs. Several finite element models representing both the field and laboratory test setups have been made. The junctions between the building blocks in the models have been modeled using tie or springs and dashpots. Visual observation and the modal assurance criterion show that there is more rotational stiffness in the test structures than in the models. The findings in this doctoral thesis add understanding to how modern joints in wooden constructions can be represented by FE modelling. They will contribute in developing FE models that can be used to see the acoustic effects prior to building an entire house. However, further research is still needed. / Denna doktorsavhandling behandlar flanktransmission i flervåningshus med trästomme, inom det lågfrekventa området, främst 20-120 Hz. Det övergripande målet är att undersöka hur finita elementmetoden kan bidra i konstruktionsfasen för att utvärdera olika knutpunkters inverkan på flanktransmissionen. Två fältmätningar av accelerationer i trähus har utvärderats. I dessa har två olika lastkällor använts, i den första en stegljudsapparat och i den andra en elektrodynamisk vibrator (shaker). Det visades att shakern kan ge mer detaljerad information, men eftersom vibrationerna även sprider sig till omgivande byggnadsdelar vid fältmätningarna var det svårt att estimera tillförlitliga dämpningsdata även då shaker användes. Fältmätningarna följdes av två mätningar i laborationsmiljö. Dessa två experiment utvärderades med experimentell modalanalys, vilket ger egenmoder och dämpning hos strukturerna. Dämpningen för dessa trähuskonstruktioner varierar kraftigt med frekvens. Extra stora variationer registreras då en elastomer användes i knutpunkten mellan golv och vägg. Den totala dämpningen är generellt högre när elastomerer används i knutpunkten mellan golv och vägg i jämförelse med då knutpunkten är skruvad. Genom att analysera egenmoder och deras korrelationer (MAC), för samma trästruktur men med olika typer av knutpunkter, drogs slutsatsen att knutpunkten drastiskt förändrar strukturens dynamiska beteende. Flera finita elementmodeller av både fält- och laboratorieuppställningar har gjorts. I dessa har knutpunkterna mellan byggnadsdelar modellerats helt styvt eller med hjälp av fjädrar och dämpare. Visuella observationer av egenmoder och korrelationen dem emellan visar att det finns mer rotationsstyvhet i försöken än i finita elementmodellerna. Resultaten i denna doktorsavhandling har gett förståelse för hur knutpunkter i träkonstruktioner beter sig och kan simuleras med finit elementmodellering. Vidare kan resultaten bidra till utvecklingen av FE-modeller som kan användas för att kunna se de akustiska effekterna redan under konstruktionsstadiet. Dock behövs ytterligare forskning inom området.

By comparative analysis of Swedish cultural policy (including art policy, heritage policy and Church policy) during the Riksdag periods of 1970-73, 1991-94, 1994-98 and 1998-2002 the relationship between cultural policy and the concept of the nation as a homogenous cultural community (defined by either an ethnic or a state-framed concept) is explored. Neoinstitutional analysis of cultural policy as an organisational field is combined with analysis of how the nation is conceived as an imagined community, and what values it strives to uphold to show how these values and concepts are institutionalised in its cultural policy and how this supports the legitimacy of the State as a nation-state. In the early seventies, when a general cultural policy was first established in Sweden, most of its fields were already institutionalised and bound by strong path dependencies, binding art policy to protecting universal aesthetic values within the state-framed nation and heritage policy to ethnic particularism while Church policy stood between universalism and ethnic particularism (which infected the relationship between Church and State). These contradictions were managed by strong borders between the fields. In the early seventies these were overlaid with a general cultural policy focused on universal civil values within the state-framed nation. Since then the conflict between Church and State has been defused and the norms of heritage policy have become closer to those of cultural policy at large by the claim that cultural heritage should be used to uphold civil values (e.g. democracy and tolerance). In the late nineties cultural policy has again become less integrated by new government initiatives with specific goals. Civil universal values remain dominant while concepts of the nation are increasingly multi-ethnic. / Genom jämförande analys av svensk statlig kulturpolitik (inklusive konstpolitik, kulturarvspolitik och religionspolitik) under riksdagsperioderna 1970-73, 1991-94, 1994-98 and 1998-2002 undersöks relationen mellan kulturpolitiken och föreställningen om nationen som en homogen kulturell gemenskap som i vissa fall tänks inkludera dess innevånare och i andra fall en etnisk grupp. Nyinstitutionell analys av kulturpolitik som organisatoriskt fält kombineras med analys av hur nationen konceptualiseras som en föreställd gemenskap och vilka värderingar den upprätthåller för att visa hur dessa värden och koncept institutionaliseras i statens kulturpolitik och hur denna bidrar till att upprätthålla nationalstatens legitimitet. När en enhetlig kulturpolitik etablerades i Sverige i början av 1970-talet var de flesta av de ingående fälten redan låsta i sedan länge etablerade stigberoenden som band konstpolitiken till upprätthållandet av estetiska värden inom ramarna för en med utgångspunkt i staten definierad nation samtidigt som kulturarvspolitiken bundits vid etniskt partikularistiska nationskoncept och kyrkopolitiken slets mellan universalism och etnisk partikularism (vilket komplicerade kyrka-stat-relationen). Motsättningar hanterades genom kraftiga institutionella gränser mellan fälten. Till dessa fogades en övergripande kulturpolitik baserad på universella civila värden inom ramarna för den statsdefinierade nationen. Sedan dess har konflikten mellan kyrka och stat lösts upp och kulturarvspolitiken integrerats i den generella kulturpolitiken bl.a. genom organisatoriska reformer. I slutet av 1990-talet tycks trenden mot en allt mer integrerad kulturpolitik dock ha vänt bl.a. genom direkta men begränsade regeringsinitiativ. Den domineras fortfarande av universella civila värden, men också av alltmer mångetniska föreställningar om nationen.

Les séismes constituent une source d’aléas importante pour l’étude de la vulnérabilité d’unbâtiment. Le comportement parasismique des bâtiments à ossatures en bois est particulièrementintéressant. Deux familles de structure à ossature en bois peuvent être distinguées : les ossaturesutilisant les produits industriels que sont les panneaux en bois reconstitué servant à contreventerla structure et les connecteurs métalliques, et les ossatures traditionnelles avec remplissage reposantsur des techniques de construction anciennes et dépendantes du contexte local. L’efficacitédu comportement parasismique des bâtiments à ossature en bois traditionnels avec remplissagereste encore peu reconnue en raison du manque de résultats issus des travaux de recherche.Les travaux présentés dans cette thèse visent ainsi à améliorer les connaissances sur le comportementparasismique de cette typologie constructive. Partant de l’hypothèse selon laquellece comportement est gouverné par la réponse des assemblages par connecteurs métalliques, uneapproche multi-échelles, couplant études expérimentales et études numériques est développée.Elle détaille l’analyse à l’échelle 1 de la connexion, en passant par l’échelle 2 des cellules élémentaires,constitutives des murs, par l’échelle 3 des murs de contreventement pour se finaliserà l’échelle 4 du bâtiment dans son ensemble.Sur le plan expérimental, cette approche permet d’une part, de réaliser des études paramétriqueset ainsi d’appréhender l’influence de la réponse de chaque élément (bois, clous, feuillard,remplissage, contreventement, ouvertures) sur le comportement local (échelles 1 et 2) et global(échelles 3 et 4) de la structure. D’autre part, elle permet de fournir une base de données pourla validation des modélisations numériques aux différentes échelles.Sur le plan de la modélisation numérique, cette approche multi-échelles est fondée sur la priseen compte du comportement non-linéaire hystérétique des assemblages à l’échelle supérieure, parl’intermédiaire d’un macro-élément, développé dans la cadre de la méthode des éléments finis.Ainsi, grâce à une modélisation simplifiée (assemblage des macro-éléments), le calcul est rapide,aussi bien à l’échelle du mur qu’à celle du bâtiment, et intègre les phénomènes non-linéaire locaux.Le modèle peut ainsi prédire de manière relativement précise le comportement dynamique de lastructure complète à l’échelle 4, testée sur table vibrante.L’étude présentée dans ce manuscrit fait partie des travaux précurseurs relatifs à l’analysede la vulnérabilité sismique des ossatures bois avec remplissage. Cette étude débouche sur denombreuses perspectives pour l’analyse de cette typologie constructive. Elle confirme que les bâtimentsà ossatures en bois avec remplissage ont un comportement parasismique très performant. / The seismic vulnerabilty is an important issue in the design of a building. The seismicresistant behavior of timber-framed structures is particularly relevant. Two types of timberframedstructures can be distinguished : the timber-framed structures using industrial products,such as wood-products panels used to brace the structure or metal fasteners, and traditionaltimber-framed structures included infill made of natuarl materials (earth or stones masonry).The seismic resistant behavior efficiency of traditional structures remains poorly recognizedbecause of the lack of research results on this kind of construction.Therefore, the thesis aims at improving the seismic behavior knowledge of timber-framedmasonry. Based on the assumption that their behavior is driven by the response of the metalfasteners connections, a multi-scale approach is proposed. It couples experimental and numericalstudies. At the scale 1 of the connection, at the scale 2 of the elementary constitutive cell ofwalls, at the scale 3 of structural elements such as shear walls and finally at the scale 4 of theentire building.In regards to the experimental work, this method allows, on the one hand, to perform parametricstudies and to analyze the influence of each element (wood member, nails, steel strip,infill, bracing, openings) on the local behavior (scales 1 and 2) and on the global behavior(scales 3 and 4) of the structure. On the other hand, it allows to provide a database to validatethe numerical modeling at each scale.In regards to the numerical work, this multi-scale approach allows to take into account thehysteretic behavior of joints in the development of a macro-element at the scale 2. Thus, thanksto a simplified finite element modeling (macro-element assembly), the computational cost islimited and it allows to take into account the local phenomena. The model is able to predictrelatively accurately the dynamic behavior at the scale 4 of the building, tested on a shakingtable.The study, presented herein, is one of the pioneer work that deals with the analysis of theseismic vulnerability of timber-framed structures with infill panels. This study provides outlookfor the analysis of this type of buildings. It confirms that the timbered masonry structures havea relevant seismic resistant behavior.