Made available in DSpace on 2016-06-02T19:52:15Z (GMT). No. of bitstreams: 1 DissJCR.pdf: 3375786 bytes, checksum: 1a57425c9778203f1f18dbdb3bb55719 (MD5) Previous issue date: 2005-12-20 / The increase of the competitiveness in the markets, demand products with high quality and that they are developed of form the one that the companies present fast cycle of development, high performance, and low cost. Some tools of the production engineering are available of form to optimize and to become more previsible the happened results of the process of development of products. An important aspect in the PDP, is the possible contribution of the supplier, combining itself since the stages initiates, of form to optimize performance ace characteristic, to reduce risks and to optimize the innovative process. The ceramic tiles industry Brazilian particularly can be characterized by producers that use water process and dry process. The industry that uses the dried milling process has grown of significant form from the beginning of years 90, producing currently about 60% of the national production. The ceramic tiles industry historically uses the supplier as collaborating in the development of products. In Brazil more specifically the role played for the suppliers of inputs for ceramic glazes is important. Considering itself that the common suppliers are ace industries that use the dry process and the water process, this work effects an exploratory boarding on the process of development of products in the ceramic tiles industry. Case studies were done in seven companies tiles manufacturers and three glazes suppliers. One concludes that the industry independently of the competitive strategy, must structuralize and co-ordinate better the PDP preventing the extreme dependence of suppliers. And that the established scene privileges more than proportionally, the industry that uses dry process. / O aumento da competitividade nos mercados demanda produtos com alta qualidade e que sejam desenvolvidos de forma a que as empresas apresentem rápido ciclo de desenvolvimento, alta performance e baixo custo. Várias ferramentas da engenharia de produção estão disponíveis de forma a otimizar e a tornar mais previsíveis os resultados advindos do processo de desenvolvimento de produtos. Um aspecto importante no PDP é a possível colaboração do fornecedor, integrando-se desde as etapas inicias, de forma a otimizar as características de desempenho, reduzir riscos e a otimizar o processo inovativo. A indústria de revestimentos cerâmicos, a brasileira, particularmente pode ser caracterizada por produtores que utilizam o processo de moagem a úmido e processo de moagem a seco. A indústria que utiliza o processo de moagem a seco tem crescido de forma significativa a partir do inicio dos anos 90, produzindo atualmente cerca de 60% da produção nacional. A indústria de revestimentos cerâmicos historicamente utiliza o fornecedor como colaborador no desenvolvimento de produtos. No Brasil mais especificamente é importante o papel desempenhado pelos fornecedores de insumos para esmaltes denominados colorifícios. Considerando-se que os fornecedores são comuns ás indústrias que utilizam o processo de moagem a seco e moagem a úmido, este trabalho efetua uma abordagem exploratória sobre o processo de desenvolvimento de produtos na indústria de revestimentos cerâmicos brasileira. Foram realizados estudos de caso em sete empresas fabricantes de revestimentos e três colorificios. Conclui-se que a indústria independentemente da estratégia competitiva, deve estruturar e coordenar melhor o PDP evitando a excessiva dependência de fornecedores. E que o cenário estabelecido privilegia mais que proporcionalmente, a indústria que utiliza o processo de moagem a seco.

This work aimed to study the incorporation of ceramic residues of tiles crushed in the soilcement mixture in the manufacture of hollow blocks, justified by the amount of these wastes generated by the ceramic tile industry, with potential for recycling. This study aimed to determine a molding energy in laboratory compatible with that of the hydraulic presses of the factory. The DNER-ME 258:1994 test method compacted soils miniature equipment Mini-MCV were used , observing that it is possible to mold bodies of proof in laboratory with ASDM apparent specific dry mass compatible with that of the hollow blocks produced in the factory. Four lots of soil-cement hollow blocks were produced, whose tests allowed to choose the most appropriate mixture, the desired value of ASDM and the number of compatible blows. The ASDM of soil-cement bodies and the blocks were compared, and there was compatibility of values. To study mixtures with the RTA Recycled Tile Aggregate the optimization methodology of the volumes of materials was used in order to fill the gaps in the aggregate with compacted soil-cement. Starting from the gap indices of the aggregate containing cement and the pure aggregate the work began with two soil-cement aggregate mixtures. By projection, other mixtures resulted from these, which, after tests, allowed to select the most adequate. Using this one, hollow blocks were manufactured, whose test results met the standard with regard to strength, but not to water absorption. To reduce the absorption, a waterproofing additive, a stabilizer and an Aloe Vera extract were inserted in the mixture, whose bodies of proof tests registered values within the normative limits in 2 cases. Hollow blocks using the most favorable mix amount were produced, whose tests attended the strength requirements, but not the absorption ones. The results obtained indicate the feasibility of the methods, and that RTA can be used for manufacturing hollow blocks, although this depends on the pressing capability of the factory. / Esta pesquisa objetivou estudar a incorporação de resíduos de telhas cerâmicas britados na mistura solo cimento, para fabricação de blocos vazados, justificada pela quantidade desses resíduos gerados pelas indústrias de telhas cerâmicas, com potencial para reciclagem. Neste estudo procurou-se estabelecer uma energia de moldagem em laboratório compatível com a das prensas hidráulicas da fábrica. Utilizou-se o método de ensaio DNER-ME 258:1994 Solos compactados em equipamento miniatura Mini-MCV, observando-se que é possível moldar em laboratório corpos de prova com MEAS - massa específica aparente seca compatível com a dos blocos vazados produzidos na fábrica. Produziu-se 4 lotes de blocos vazados de solo cimento, cujos ensaios permitiram escolher a mistura mais adequada, o valor desejado da MEAS e o número de golpes compatível. Comparou-se as MEAS dos corpos de prova e dos blocos de solo cimento, houve compatibilidade de valores. Para o estudo das misturas com o ART - agregado reciclado de telha utilizou-se a metodologia de otimização dos volumes dos materiais, de forma a preencher os vazios do agregado com solo cimento compactado. A partir dos índices de vazios do agregado com cimento e do agregado puro iniciou-se o trabalho com duas misturas solo cimento agregado. Destas, por projeção resultaram outras misturas, que após ensaios permitiu selecionar a mais adequada. Com esta, fabricou-se blocos vazados cujos resultados dos ensaios atenderam a norma quanto à resistência, mas não quanto à absorção de água. Para reduzir a absorção, inseriu-se na mistura, aditivo impermeabilizante, estabilizante e extrato de Aloe vera, cujos ensaios dos corpos de prova acusaram valores dentro dos limites normativos para 2 casos. Produziu-se blocos vazados com a dosagem mais favorável, que ensaiados, atenderam aos requisitos de resistência, mas não de absorção. Os resultados obtidos indicam a viabilidade dos métodos e que o ART pode ser utilizado na fabricação de blocos vazados, mas depende da capacidade de prensagem da fábrica. / Mestre em Engenharia Mecânica

This thesis focuses on the design and implementation of a software system enabling out-of-core rendering of multiple map datasets mapped on virtual globes around our solar system. Challenges such as precision, accuracy, curvature and massive datasets were considered. The result is a globe visualization software using a chunked level of detail approach for rendering. The software can render texture layers of various sorts to aid in scientific visualization on top of height mapped geometry, yielding accurate visualizations rendered at interactive frame rates. The project was conducted at the American Museum of Natural History (AMNH), New York and serves the goal of implementing a planetary visualization software to aid in public presentations and bringing space science to the public. The work is part of the development of the software OpenSpace, which is the result of a collaboration between Linköping University, AMNH and the National Aeronautics and Space Administration (NASA) among others.

Beside the point of whether the country is developed or underdeveloped, energy crisis is a common scene all over the world. In order to balance energy supply and demand, either one has to increase the supply or decrease the demand. The latter seems to be the better choice since we have limited sources of energy. About 20% - 40% of energy produced by a country is being consumed by HVACs in buildings. Hence much e ort is towards energy conservation in buildings. Around 30% of the building energy consumption in India is due to cooling load. Previous studies have shown that around 60% of the heat due to solar radiation enters through the roof of the building. The present work aims to reduce the heat load entering through the roof by coming up with a better roofing technique for moderate climatic regions. In the present work, enclosures with the side walls and the floor (bottom slab) insulated has been studied both numerically and experimentally. Heat transfer between the ambient and enclosure is only through the roof (top slab). Six common roofing types have been studied in this thesis. Reinforced cement concrete (RCC) roof Mangalore tile roof Thatched roof GI Sheet roof and Concrete roof with lawn (green roof) Concrete roof with a layer of wet sand The experimental studies have been carried out to understand heat transfer through these roofs. A comparative study of all six types of roofs has been done. Apart from this, the effect of a shade net on room models with bare RCC roof and GI sheet roof is also studied and presented in this thesis. Each enclosure has a height of 0.3m and the sides are 1m in size. Mangalore tile and thatched roofs are inclined to the horizontal. To understand the heat flow process, the temperature variations of different surfaces and enclosure air, and, air temperatures near the top and bottom slabs were recorded. In addition, weather conditions such as solar radiation, ambient air temperature, and wind speed are recorded. The details of the experimental set up are given in chapter 3. In chapter 2, a mathematical model to determine the temperature variations in the enclosure is given. All the three modes of heat transfer (conduction, convection and radiation) are present and the system is unsteady. The objective is to find the temperatures of the walls and the enclosure air temperature. Heat flows either from surroundings to the enclosure or from enclosure to the surroundings through the walls of the enclosure. As the solar radiation data is known for a given location, un-steady heat conduction equation is solved for the walls of the enclosure with heat flux boundary conditions to solve for the temperatures. Standard correlations have been used for calculating the convective heat transfer to the ambient and in the enclosure. Most importantly, the experiments conducted were field experiments. The main objective of the study had been to understand the effect of roof on thermal comfort conditions inside the scaled model rooms under five different weather conditions which are commonly observed in warm tropics: (1)summer, (2)winter, (3)cloudy, (4)unsteady, and, (5)rainy. The details of weather conditions have been discussed in chapter 4. In the present analysis, various issues were looked upon such as, temperature values, time lag, thermo-physical properties of the roof material, weather conditions, average over a 24 hours cycle etc. For the comparative analysis, bare RCC roof has been assumed to the base case as most of the buildings are built with RCC roof (for example, in India, around 29% of the buildings have RCC roof, as per 2011 census). On one side we have passive cooling techniques (lawn over RCC roof and wet sand over RCC roof), and, on the other side we have breathing roofs (Mangalore tile roof and thatched roof). Apart from these, the GI sheet roof is commonly used for small scale industries and residential houses. It has been observed that the concrete roof with lawn (hereafter called as lawn over RCC roof ) being the best one among the considered six roofs. Having lawn over RCC roof could result reduction in both solar gain and the diurnal variation of enclosure inside temperatures. The range of temperature variation was least disturbed due to change in weather conditions. In the case of wet sand over RCC roof, the diurnal variations of enclosure inside temperatures were relatively higher as compared with those in the lawn over RCC roof case. As far as breathing roofs are concerned, the two were found to be better than bare RCC roof with thermal comfort as point of view. On the other hand, breathing effects are found to be better in case of Mangalore tile roof than in case of thatched roof. GI sheet roof was found to be the worst among considered for thermal comfort. The effect of using shade net over RCC and GI sheet roof proves to have good potential to reduce cooling load with negligible adverse effects during night time. Detailed discussion of results has been done in chapter 4. Numerical simulations have been carried out for the case of model room with bare RCC roof. A comparative analysis of both experimental and numerical results has been discussed in chapter 5. The important conclusions are discussed in chapter 6.

Civil two floors building serving as a base for athletes with further use for offices, cafe-bar, a fitness center and billiards club. The building is being designed in Jihlava in the area of football pitches with athletic oval. The building is situated near the cinema, children's playground and the Zoological Garden in Jihlava. Built-up land area is 2006 m2. The maximum capacity of the building is 418 persons and 430 capacity of grandstands. The building is constructed of ceramic bricks Porotherm. The roof construction is made of wooden trusses with a slope of three degrees. The draft of the object emphasizes the building layout, fire safety and energy savings.

The master’s thesis project is developed for the implementation of a new building for the elderly and persons with reduced mobility - Senior Park. The building is divided into several parts: the main building with facilities and separate wooden houses for the accommodation. The main building is a single-storey structure with a vegetative roof. The houses are designed with gable roof, without a basement. There is an emphasis on utmost privacy of individuals along with the care and closeness to nature. I embedded the main building partially into the ground so as to offset the difference in land and thus facilitate the movement after the plot and also served as a park for the inhabitants.

The aims of this dissertation are to analyze the current state of process control, to identify the product range in selected organization and to design the process planning methodology to ensure an optimal implementation. Optimization is understood as costs minimization while keeping an acceptable continuity of supply. The dissertation contains a description of technological and non-manufacturing processes of brick products, as well as the summary and description of the basic tools of quality management.

The subject of my thesis is the design of new mountain hotel based on wood, which is located at the top of Little Maple, cadastral area Trinec-Tyra, the city of Trinec, Frydek-Mistek level documentation for construction. The building has a partial basement, with three floors. The supporting system consists of three structural systems. The structural system consists of basement formwork, the first floor is made of ceramic blocks heluz, second and third floor is designed as a timber frame panel. Roof structure is made up of lattice wood trusses and gabled aisle. Proposal mountain hotel respects the territorial plan of Trinec. Furthermore, emphasis is placed on the layout, including ensuring the design to the static, architectural, energy savings and safety in the use of the building.

Der Grundbaustein des Lebens, die Desoxyribonukleinsäure (DNS), ist aufgrund ihrer spezifischen Basenpaarung ein geeignetes Molekül, um stabile und vielfältige nano- beziehungsweise mikrometergroße Strukturen herzustellen. Diese selbstorganisierten DNS-Strukturen eignen sich als Grundeinheiten für die Ausrichtung anorganischer und organischer Materialien. Für die Synthese solcher DNS-Strukturen werden insbesondere die Kachel-basierte Assemblierung (engl. tile-based assembly, im Folgenden als Tile-basierte Assemblierung bezeichnet) oder die DNS-Origami-Methode verwendet. Die Tile-basierte Assemblierung beinhaltet die Verbindung einzelner DNS-Bausteine, den sogenannten Kacheln (engl. tiles), zu komplexeren DNS-Strukturen. Hingegen entspricht die DNS-Origami-Methode der Faltung eines langen einzelsträngigen DNS-Moleküls, dem sogenannten scaffold, anhand von hunderten kurzen Oligonukleotiden (Heftklammer-Oligomeren, engl. staple strands) hin zu einer entsprechenden Form. Hinsichtlich einer zukünftigen Erstellung von DNS-basierten, nanoelektronischen Systemen war das Ziel dieser Arbeit einheitliche zwei- (2D) und dreidimensionale (3D) DNS-Nanostrukturen herzustellen, Methoden für deren kontrollierte Vernetzung zu entwickeln sowie deren chemische Funktionalisierung mit Nanomaterialien und einer beispielhaften Integration in lithographisch gefertigten Mikrokontaktstrukturen durchzuführen. Hierfür war es notwendig, einen weiten Bogen zu spannen, welcher einerseits verschiedene Konstruktionsprinzipien der DNS-Nanotechnologie vorteilhaft miteinander vereint und der andererseits die weitreichenden Möglichkeiten der chemischen Funktionalisierung der sogenannten DNS-Templatstrukturen auslotet. Konkret wurden zur Erstellung von einheitlichen DNS-Strukturen Assemblierungskonzepte verwendet bzw. entwickelt, welche auf die Ausrichtung einzelner kurzer Oligonukleotide anhand eines langen einzelsträngigen DNS-Templates beruhen. Im ersten Teil der Arbeit ist anhand eines selbstkomplementären Einzelstranges aufgezeigt, wie sich prinzipiell die Wachstumsrichtung einer Tile-basierten Struktur durch die Verwendung eines einzelsträngigen DNS-Templates beeinflussen lässt. Bei diesem Ansatz bildet sich entlang des DNS-Templates eine 2D-Gitterstruktur aus einheitlichen und abschnittsweise selbstkomplementären hexagonalen oder tetragonalen Oligonukleotideinheiten aus. Diese gerichtete Selbstassemblierung führt schließlich zum Aufrollen und Zusammenschluss der 2D-DNS-Struktur zu einer tubulären Struktur. Die Größe und Geometrie der Oligonukleotideinheiten bestimmen dabei maßgeblich den Durchmesser dieser DNS-Nanoröhren. Zur Erklärung von experimentellen Beobachtungen wurde ein Modell entwickelt, welches die Templat-gestützte Assemblierung theoretisch beschreibt. Die erstellten, strukturellen Anforderungen genügenden Nanoröhren eignen sich für eine gleichmäßige Funktionalisierung mit Nanomaterialien, wie anhand der Ausrichtung von Gold-Nanopartikeln gezeigt wurde. In einem weiteren Teil der Arbeit wurde eine ca. 400 nm lange DNS-Nanoröhre anhand der DNS-Origami-Methode erstellt. Diese Nanoröhre diente als Modellsystem zur Untersuchung der Integration von tubulären DNS-Strukturen in Mikrokontaktstrukturen mittels der Dielektrophorese. Eine positive dielektrophoretische Antwort der 3D-DNS-Strukturen konnte im MHz-Bereich festgestellt werden. Des Weiteren wurde für mit Gold-Nanopartikeln funktionalisierte DNS-Nanoröhren eine verstärkte dielektrophoretisch Antwort beobachtet. Neben der Manipulation bzw. Ausrichtung von DNS-Nanostrukturen wurden Konzepte entwickelt, welche zusätzlich zum Aufbau komplexer DNS-Netzwerke innerhalb einer Mikrokontaktstruktur erforderlich sind. Konkret konnte eine Verbindung der 3D-Nanoröhren (i) untereinander über eine 200 nm lange kreuzartige DNS-Zwischenstruktur und (ii) endständig mit einer Goldoberfläche ermöglicht werden. Der dritte Teil dieser Arbeit befasste sich mit der Entwicklung einer modularen 2D-DNS-Struktur, welche unter anderem für eine vergleichbare Untersuchung zur Immobilisierung von Nanomaterialien auf DNS-Strukturen dienen kann. Anhand der DNS-Origami-Methode wurde eine spezifische DNS-Gerüststruktur entworfen, welche die Ausstattung mit einer funktionalisierbaren Tile-basierten Einheit erlaubt. Um die Modularität der DNS-Gerüststruktur zu verdeutlichen, wurden zwei unterschiedliche, drei-beinige Tiles entworfen und anhand eines Ein- oder Zwei-Schritt-Verfahrens in die DNS-Gerüststruktur integriert. Die Anbindung eines Gold-Nanopartikels an jedes Bein des eingebundenen Tiles demonstriert die spezifische Funktionialisierbarkeit dieses Modellsystems. Zudem wurden Methoden, welche zur Aufreinigung der funktionalisierten DNS-Gerüststrukturen dienen, wie auch Effekte der Vernetzung von DNS-Origami-Strukturen anhand unspezifischer Wechselwirkungen untersucht. Die Ermittlung der Struktureigenschaften beziehungsweise der Assemblierungsqualität der in dieser Arbeit gezeigten DNS-Strukturen erfolgte mittels elektrophoretischer und bildgebender Untersuchungsverfahren (Rasterkraftmikroskopie, Transmissionselektronenmikroskopie, Rasterelektronenmikroskopie).

Denna rapport är resultatet av ett examensarbete som utförts isamarbete med byggföretaget K360 i Uppsala. De arbetar medkakling av badrum i renovering och nybyggnation. En fallstudiehar besvarat forskningsfrågan “Hur kan byggföretag i Sverigegenom materialval och arbetssätt i samband med kakling avbadrum, minska sina koldioxidutsläpp och sin användning avfarliga ämnen?”. Materialen avser avjämningsmassa, fästmassa ochkakel. Litteraturstudierna bygger på rapporter och skrifter frånstatliga institutioner, kommuner, företag och tidningsartiklar. Dettycks saknas forskning om avjämning och fästmassa. Litteraturenberör klimatneutral betong, farliga ämnen, avfallshantering ochföretagskultur och visar följande. Cementen i betong ger högakoldioxidutsläpp. I klimatneutral betong har delar av cementenbytts ut mot bl.a. flygaska. Den gör att betongen eller avjämningentorkar långsamt. Cementindustrin forskar på metoder för attminska sina koldioxidutsläpp. En annan studie bygger på en teoriatt normaltorkande avjämning möjliggör klimatneutraltbetongbjälklag då den fungerar som fukt- och alkalispärr. Denempiriska studien beräknas färdig 2021. Farliga ämnen skaminskas och mycket farliga ämnen ska fasas ut. Dessa ärcancerframkallande, hormonstörande, svårnedbrytbara, kraftigtallergiframkallande och förändrande av arvsmassa ellerfortplantning. Försiktighetsprincipen bör tillämpas då det saknasforskning om många ämnens miljöpåverkan i kombination medandra. I cementbaserade fästmassor och avjämningsmassor kan detfinnas plasttillsatser som medför giftiga biocider. Det finnsnaturliga alternativ. Avfall bör i första hand minimeras, sedanåteranvändas, materialåtervinnas, energiutvinnas och sistdeponeras. I K360s miljöpolicy står att de värnar ommedarbetarnas delaktighet. Litteraturen stödjer delaktighet ochyrkesstolthet som drivkraft till ett företags kvalitetsutveckling därmiljö är en del. Beslut ska baseras på fakta som kräverkommunikation men K360 saknar idag forum för miljö- ochklimatfrågor. Sju kvalitativa intervjuer har genomförts medplattsättare och projektledare. Alla intervjuade anser att miljö- ochklimatfrågor är viktigt. Samtliga plattsättare strävar efter attminska spillet genom planering och beräkning av materialåtgång.Detta blir lättare med mer erfarenhet. För att effektivt kunnaanvända kakelplattorna krävs tid för planering och logiskttänkande. Tidsbrist, standarden för att kapa kakelplattor, mått ochutformning av badrummen utgör hinder för att förebygga spill.Möjligheterna för detsamma är att i projekteringsstadiet anpassatidsplan, badrummets mått och kakel. Allt material återvinns närmöjlighet ges. Beställarens krav och pris styr materialvalet. Andrafaktorer är låg vikt och att det fungerar med befintliga material.Plattsättare och projektledare uttrycker tilltro till att materialet ärkontrollerat för farliga ämnen. Överlag saknar de kunskap ommaterialens innehåll och möjligheten att påverka materialvaletupplevs vara litet. En produktjämförelse jämför fästmassornaCentro FK# 1000 som K360 använder mycket och Haga 325 Bio-Platten- und Fliesenkleber. Produkterna är likvärdiga ochcementbaserade. Centros innehåller plasttillsatser medan Hagasbara naturliga tillsatser. Diskussionen tar upp om ett riktatlitteratursökande kan ha lett till att källor missats och att källorfrån företag kan vara vinklat. Hänvisningar från kommunen ochoberoende källor stärker informationen. Vidare diskuteras omtilliten hos informanterna till materialkontrollerna är frånsägandeav ansvar men flera uttalanden pekar på starkt ansvarskännande.Slutsatsen från produktjämförelsen är att ett byte från Centro tillHaga skulle minska potentiellt farliga ämnen. Andra slutsatsersom dras är att det saknas klimatneutral avjämningsmassa påmarknaden men det kan komma att visa sig att normaltorkandeavjämning är att föredra. Företaget saknar idag forum för internkommunikation om miljöfrågor vilket gör att information fastnarhos enskilda individer. Rapporten rekommenderar K360 att avsättaresurser för att uppdatera sig om materialinnehåll ochmiljöutveckling, skapa forum och vägar för intern kunskaps- ocherfarenhetsöverföring, sprida information om material ocharbetssätt till beställare och producenter av material, fortsätta medcementbaserad avjämning och byta mot klimatneutral cement iframtiden.