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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

A multiresolutional approach for large data visualization

Wang, Chaoli 30 November 2006 (has links)
No description available.
32

BIM I TOTALENTREPRENAD: PROJEKTERINGENS INFORMATIONSLEVERANSER FÖR PRODUKTIONENS GRUNDLÄGGNING / BIM IN A DESIGN-BUILD CONTRACT: THE INFORMATION DELIVERIES OF THE DESIGN PROCESS FOR THE FOUNDATION WORK OF THE PRODUCTION

Lindell, Frans January 2017 (has links)
Syfte: Byggsektorn karaktäriseras av att till stor del bestå av temporära projektorganisationer med mycket samarbete mellan discipliner men utan någon vidare processkontinuitet mellan de unika projekten. Det finns ett stort fokus på tid och omedelbar handling som en del av aktörernas referensram och varje aktivitet och nytt arbetssätt bör ge omedelbara fördelar i form av tidsvinster och effektivare utförande för att villigt accepteras. Behoven av standardiserade arbetssätt blir mycket synliga när man börjar införa BIM i projekten. Att aktivt använda BIM-modellen på bygget skapar krav på innehållet och att man följer ett projekteringsschema. BuildingSMART International (2010) skriver: ”Om den nödvändiga informationen är tillgänglig när den behövs och kvalitén på informationen är tillfredställande, så blir själva byggprocessen signifikant förbättrad”. Målet med detta examensarbete är att ta fram ett förslag på hur sekvensen av informationsleveranser bör se ut för den inledande produktionen av bärande system i en totalentreprenad. Metod: För att nå målet har en litteraturstudie genomförts för att skapa arbetets teoretiska ramverk. En fallstudie på en totalentreprenad med djupgrundläggning har genomförts. I fallstudien har empiri insamlats genom intervjuer med några av projektets aktörer samt en dokumentanalys av relevanta ritningar, protokoll och övriga dokument i projektet. Resultat: Rapporten har kartlagt sekvensen av informationsleveranser (inklusive vilket informationsinnehåll och vilken detaljeringsnivå de behöver ha) för den inledande produktionen av bärande system i en totalentreprenad. Detta kunskapsbidrag med processkarta och informationsbehov kan byggas vidare på, för att kunna implementeras i BIM-verktygen och därigenom underlätta arbetet och föra BIM-användningen framåt. Konsekvenser: Rapporten har med ovan resultat bidragit med några påbörjade pusselbitar i ett stort pussel av information och leveranser i rätt sekvens och detaljeringsgrad. För att pusslet ska bli komplett måste även informationsleveranser från förfrågningsunderlaget fungera korrekt. Arbetet har belyst fördelar att arbeta med BIM i denna del av byggprocessen. Rapporten föreslår förtydligande av innebörd genom att ha både detaljeringsnivå och utvecklingsnivå som benämningar i Sverige. Begränsningar: Rapporten begränsas till att beskriva vad byggentreprenören behöver för informationsleveranser från konstruktören som rör pålning, grundsulor och fundament. Rapporten beskriver också de informationsleveranser konstruktören behöver för att uppfylla byggentreprenörens informationsbehov. / Purpose: The building industry is characterised by mainly consisting of temporary project organizations with much interdisciplinary cooperation but with little continuity of process between the unique projects. There is a big focus on time and immediate action as part of the actors’ frame of reference, and every activity and new work method should give immediate advantages in time savings and more efficient work to be readily accepted. The need for standardised work methods is very visible when BIM is introduced in the projects. To actively use the BIM-model on site creates demands on the content and that a design schedule is followed. BuildingSMART International (2010) writes: ”If the information required is available when it is needed and the quality of information is satisfactory, the construction process will itself be significantly improved”. The aim of this work is to produce a suggestion of how the sequence of information deliveries should be in the starting production of the loadbearing system in a design build project. Method: To reach the aim a literature study has been conducted to create the theoretical framework for the study. A case study has been conducted on a design build project with a deep foundation. Empirical data has been collected by means of interviewing some of the project actors and conducting a document analysis of project documents such as drawings and protocols. Findings: The report has mapped the sequence of information deliveries (including what information content and what level of development they need to have) for the initial production of the loadbearing system in a design build project. This contribution of knowledge with the process map and information demands can be built upon, to allow for implementation in the BIM tools and thus make the work easier and push the use of BIM forward. Implications: With the above results the report has contributed with a few started puzzle pieces in a big puzzle of information and deliveries in the correct sequence and level of development. To complete the puzzle the information deliveries from the specifications also needs to work correctly. The report has shown advantages by working with BIM in this part of the building process. The report suggests clarification of meaning by using both names, level of detail and level of development, in Sweden. Limitations: The report is limited to describe what information deliveries the contractor needs from the structural designer when it comes to piling and foundations. It also describes the information deliveries needed by the structural designer to be able to meet the information need of the contractor.
33

LOD: uma abordagem para desenvolvimento de objetos de aprendizagem multimídia e interativos / LOD: an approach to the development of multimedia and interactive learning objects

Silva, Marco Aurélio Graciotto 18 June 2012 (has links)
Objetos de aprendizagem (OA) compõem uma das abordagens adotadas para tratar a crescente complexidade da educação com auxílio de computadores, promovendo o reúso e a qualidade de materiais didáticos. Tais benefícios podem ser ampliados ao incluir questões de projeto instrucional e associá-las às características multimídias e interativas dos dispositivos computacionais, sistematizando-se a produção de objetos de aprendizagem. Nesse contexto, esta tese define uma abordagem para o desenvolvimento de objetos de aprendizagem multimídias e interativos considerando o cenário de televisão digital. Essa abordagem, denominada LOD (Learning Object Development) consiste de um modelo de processo ou processo-padrão para desenvolvimento de objetos de aprendizagem (SPLOD Standard Process for Learning Object Development), a partir do qual se define um processo (LODP Learning Object Development Process) adequado para a construção de objetos de aprendizagem como recursos educacionais abertos (análogos a software livre); de um método de desenvolvimento dirigido a modelos, denominado LODM (Learning Object Development Method), compreendendo a modelagem conceitual, instrucional e de interação do objeto de aprendizagem; e de um conjunto de ferramentas que estabelecem um protótipo de ambiente para o desenvolvimento de objetos de aprendizagem (LODE Learning Object Development Environment) considerando o método LODM e o processo LODP. A abordagem LOD foi preliminarmente avaliada quanto à engenharia de objetos de aprendizagem multimídia e interativos, representados por apresentações multimídia e aplicações interativas para televisão digital para a plataforma Ginga do Sistema Brasileiro de Televisão Digital (SBTVD). Os resultados apontam para os benefícios da abordagem integrada para o desenvolvimento, com a geração de objetos de aprendizagem multimídias e interativos de forma mais ágil e sistemática, além de promover o reúso desde os primeiros passos da modelagem dos objetos de aprendizagem / Learning objects are an approach to address the increasingly complexity of computersupported education, fostering reuse and learning material quality. Such benefits can be improved by considering instructional design and the multimedia and interactivity features of current computing devices, providing a systematic method to develop learning objects. Considering such context, this thesis defines an approach to the development of multimedia and interactive learning objects, considering the digital television scenario. This approach is named LOD (Learning Object Development) and is composed of (1) a reference process (SPLOD Standard Process for Learning Object Development) from which we defined a process for learning objects development (LODP Learning Object Development Process) suitable for engineering of open educational resources; (2) a model-driven development method (LODM Learning Object Development Method) that integrates conceptual, instructional and interaction modeling of learning objects; and (3) a set of tools that establish a prototype for an environment for learning object development named LODE (Learning Object Development Environment). The LOD approach was evaluated with multimedia and interactive learning objects development realized as multimedia presentations and interactive digital television applications aimed at the Brazilian Digital Television System and its Ginga middleware. The results evince the benefits of the integrated approach, providing an agile and systematic development and fostering the reuse since the initial models of the learning object engineering process
34

Effektivisering av ekologisk dagvattenhantering i stadsmiljö / Efficiency of ecological stormwater management in urban areas

Backström, Martin, Wikström, Ludvig January 2013 (has links)
I Jönköping har problemet med översvämningar, erosion och materialtransport varit ett stort problem i Strömsbergsbäcken i Jönköpings kommun. Detta har tillviss del orsakats av ett ökat dagvattenutsläpp i bäcken, vilket skapar kraftigaflödestoppar då den ursprungliga fåran inte är ”dimensionerad” för den ökadevattenmängden. Syftet med arbetet är att effektivisera ekologisk dagvattenhantering i stadsmiljö med högt dagvattenutsläpp. Målet med arbetet är i sin tur att framställa underlag för hur ekologisk dagvattenhantering i stadsmiljö kan genomföras och att rapporten skall kunna ge värdefull kunskap till liknande sammanhang. För attuppfylla målet har följande tre frågeställningar utformats som utgör en väsentligdel av arbetet: Hur kan belastningen på det allmänna dagvattennätet minskas? Hur kan föroreningsföljderna av dagvattenavrinning i stadsmiljö minskas? Vilka åtgärder är lämpliga för att effektivisera ekologisk dagvattenhantering i  Strömsbergsbäcken? Metoderna som använts för att besvara frågeställningarna är litteraturstudie, dokumentanalys och fallstudie. Resultaten visar på att vattenflödena från fyra av nio upptagningsområden som har sitt utlopp i Strömsbergsbäcken bör genomgå någon form av åtgärd som bromsar eller minskar dagvattenflödena innan det återgår till den naturliga vattencykeln. Dagvattenflödet kan minskas genom att anlägga åtgärder i området innan vattnet når vattendraget. Flödena kan också minskas genom åtgärder i anslutning tillbäcken, vid de utloppen där de största flödena förekommer. En väsentlig lösning för Strömsbergsbäcken är t.ex. att bygga om den befintliga branddammen, som ligger intill ett av utloppen, till en fördröjningsdamm för att bromsa en del av flödena i bäcken. / In the city of Jönköping problems with the irregular flow, erosions and transport of sediment materials are recurring in the brook Strömsbergsbäcken. The problems is somewhat caused by an increased flow of storm water in the brook, which leads to high flow peaks in some parts of the brook since the original furrow is not dimensioned for the increased amount of water. The purpose of this project work is to make ecological drainage management in urban environments with a high amount of storm water discharge more efficient. The objective with the report is to create valuable material of how to accomplish ecological drainage management in urban areas and that the report will be useful for future similar connections. To fulfill the objective, the following three questions have been designed as a significant part of the final project report: How can the load on the general drainage system be reduced? How can the pollution effects of storm water runoff in urban areas be reduced? Which treatments are appropriate to enhance the ecological storm water management in Strömsbergsbäcken ? The methods that have been used to solve these questions are document- and literature studies, and also a case study.The thesis results shows that the storm water flows from four of the nine areas that has its outlets in Strömsbergsbäcken, need to be treated through some kind of a solution or method that delays the water flow. The treatment could be performed in the area, before the storm water reaches the storm water network, which leads to Strömsbergsbäcken. The storm water flows can also be reduced by treatments adjacent to the outlets in the brook, where the largest flow peaks occurs. For example an essential solution to decrease the flows in Strömsbergsbäcken is to reconstruct the old dam located near one of the outlets into a basin, which will delay the stormwater flows.
35

LOD: uma abordagem para desenvolvimento de objetos de aprendizagem multimídia e interativos / LOD: an approach to the development of multimedia and interactive learning objects

Marco Aurélio Graciotto Silva 18 June 2012 (has links)
Objetos de aprendizagem (OA) compõem uma das abordagens adotadas para tratar a crescente complexidade da educação com auxílio de computadores, promovendo o reúso e a qualidade de materiais didáticos. Tais benefícios podem ser ampliados ao incluir questões de projeto instrucional e associá-las às características multimídias e interativas dos dispositivos computacionais, sistematizando-se a produção de objetos de aprendizagem. Nesse contexto, esta tese define uma abordagem para o desenvolvimento de objetos de aprendizagem multimídias e interativos considerando o cenário de televisão digital. Essa abordagem, denominada LOD (Learning Object Development) consiste de um modelo de processo ou processo-padrão para desenvolvimento de objetos de aprendizagem (SPLOD Standard Process for Learning Object Development), a partir do qual se define um processo (LODP Learning Object Development Process) adequado para a construção de objetos de aprendizagem como recursos educacionais abertos (análogos a software livre); de um método de desenvolvimento dirigido a modelos, denominado LODM (Learning Object Development Method), compreendendo a modelagem conceitual, instrucional e de interação do objeto de aprendizagem; e de um conjunto de ferramentas que estabelecem um protótipo de ambiente para o desenvolvimento de objetos de aprendizagem (LODE Learning Object Development Environment) considerando o método LODM e o processo LODP. A abordagem LOD foi preliminarmente avaliada quanto à engenharia de objetos de aprendizagem multimídia e interativos, representados por apresentações multimídia e aplicações interativas para televisão digital para a plataforma Ginga do Sistema Brasileiro de Televisão Digital (SBTVD). Os resultados apontam para os benefícios da abordagem integrada para o desenvolvimento, com a geração de objetos de aprendizagem multimídias e interativos de forma mais ágil e sistemática, além de promover o reúso desde os primeiros passos da modelagem dos objetos de aprendizagem / Learning objects are an approach to address the increasingly complexity of computersupported education, fostering reuse and learning material quality. Such benefits can be improved by considering instructional design and the multimedia and interactivity features of current computing devices, providing a systematic method to develop learning objects. Considering such context, this thesis defines an approach to the development of multimedia and interactive learning objects, considering the digital television scenario. This approach is named LOD (Learning Object Development) and is composed of (1) a reference process (SPLOD Standard Process for Learning Object Development) from which we defined a process for learning objects development (LODP Learning Object Development Process) suitable for engineering of open educational resources; (2) a model-driven development method (LODM Learning Object Development Method) that integrates conceptual, instructional and interaction modeling of learning objects; and (3) a set of tools that establish a prototype for an environment for learning object development named LODE (Learning Object Development Environment). The LOD approach was evaluated with multimedia and interactive learning objects development realized as multimedia presentations and interactive digital television applications aimed at the Brazilian Digital Television System and its Ginga middleware. The results evince the benefits of the integrated approach, providing an agile and systematic development and fostering the reuse since the initial models of the learning object engineering process
36

Contribution à la définition d’un modèle d’ingénierie concourante pour la mise en oeuvre des projets d’infrastructures linéaires urbaines : prise en compte des interactions entre enjeux, acteurs, échelles et objets / Contribution to the definition of a concurrent engineering model for the implementation on urban linear infrastructure projects : taking into account the interactions between issues, stakeholders, scales and objects

Tolmer, Charles-Edouard 07 November 2016 (has links)
Le BIM est actuellement en pleine explosion. Il s'appuie sur la progression des outils informatiques. Toutefois, la gestion de l'information au sein d'un projet d'infrastructure nécessite également l'utilisation de méthodologies et de concepts spécifiques comme les notions de « niveau de détail », de « niveau de développement » ou de « niveau d'abstraction ». Ils servent à décrire l'information pertinente à échanger entre acteurs, selon des objectifs de modélisation, en vue de répondre à des exigences identifiées. Dans le contexte spécifique des projets d'infrastructures, ces outils ne sont mal définis, insuffisants et amènent parfois à des modélisations contradictoires.Dans une optique de progression vers une conception en ingénierie concourante, notre travail de recherche apporte une contribution en deux parties. En se basant sur les principes de l'ingénierie système, la première partie consiste en une méthodologie d'identification des exigences à satisfaire et de l'information pertinente pour y répondre et contrôler cette réponse. La seconde partie décrit le modèle conceptuel de données. Il traite de la structuration des objets qui modélisent le projet en lien avec la structuration des exigences. Cette proposition s'accompagne d'une redéfinition de plusieurs types de niveaux existants (de détail, de développement, d'information, d'abstraction, etc.). Ces éléments sont éprouvés sur un projet d'autoroute en milieu urbain.Les échanges d'informations sont au cœur du BIM. Leur précision ainsi que la qualité des informations échangées participent à la réussite tant technique que managériale du projet.Notre proposition méthodologique permet de faire évoluer les pratiques et le regard que le secteur de la construction porte sur l'information qu'il crée. Elle participe également à la numérisation du secteur de la construction / However, the information management within an infrastructure project (road, rail, airport and other civil engineering works) also requires the use of specific methodologies and concepts like the concepts of ”level of detail” , ”level of development” or ”level of abstraction”. They are used to describe the relevant information that have to be exchanged between stakeholders, according to the modeling objectives in order to meet the project requirements. In the specific context of infrastructure projects, these tools are poorly defined, insufficient and sometimes bring to contradictory models.With a view to progress towards concurrent engineering design, our research is a contribution in two parts. Based on the principles of systems engineering, the first part is about to provide a methodology for requirements and relevant information identification to respond and control this response. The second part describes the project conceptual data model : it deals with the structure of the objects that model in connection with the requirements identification. This proposal is accompanied by a redefinition of several types of existing levels (detail, development, information, abstraction, etc.). These inputs are tested on a project of urban freeway in an industrial context.The exchange of information is at the center of BIM. The accuracy and quality of exchanged information participate in both technical and managerial project success. Our proposed methodology allows to change practices and the vision that the construction sector looks forward to the information it creates. It also participates in the digitalization of the construction sector
37

EN JÄMFÖRELSESTUDIE MELLAN MANUELL UPPMÄTNING OCH LASERSKANNING VID OMBYGGNATION / A COMPARISON STUDY BETWEEN TRADITIONAL BUILDING SURVEY AND LASER SCANNING IN RENOVATION

Al-yousifi, Yani, Deniz, Mustafa January 2020 (has links)
Purpose: In a survey from the Swedish National Board of Housing, Building and Planning, important causes for deficiencies, faults and damage in renovation projects has been identified. Lack of time proved to be the most cause, which also entails large costs of action to remedy the faults/damages. Digital tools provide opportunities for streamlining time and costs. Laser scanning is one such tool. However, the knowledge of laser scanning is not extensive in the construction industry and/or is assumed to cost a lot. The aim of the work was to compare laser scanning against traditional building surveying method to know which method is more advantageous regarding profitability. Method: To achieve the objectives of the work, a survey strategy was used that was both qualitative and quantitative. Literature study and interviews gathered knowledge about the advantages/disadvantages of the two building surveying methods (laser scanning and traditional) and factors that affect the profitability when using them. Calculations were performed to compare the costs of the methods regarding the complexity of the project. Findings: The generated result shows that laser scanning has more advantages than traditional building surveying. Laser scanning takes less time to perform in bigger projects and results in greater accuracy in the as-built documents than traditional building surveying, among other things. From a cost-benefit perspective it is important that for each specific project calculations should be made separately for the two building surveying methods to see which one is less expensive. The project used in this thesis would have been more profitable with laser scanning as a surveying method, while for other projects it might be more profitable with traditional building surveying. Implications: The study indicates that laser scanning is more profitable in terms of time and cost savings. Laser scanning should be chosen as a surveying method if you want to save time and get better accuracy, which results in less errors in the project planning. For larger projects, laser scanning is also recommended from a cost perspective. The survey also gives clients and contractors a better view of the benefits from using laser scanning. Limitations: The study was limited to treating only terrestrial laser scanning when surveying existing buildings prior to renovations, hence the result cannot be generalized to other types of laser scanning. Keywords: Laser scanning, Traditional building surveying, BIM, Profitability, Renovation, Complexity, LOD. / Syfte: I en undersökning från Boverket i Sverige har man inom byggnadsbranschen kartlagt viktiga orsaker för brister, fel och skador vid bland annat ombyggnationer. Tidsbrist visade sig vara den största orsaken som även medför stora åtgärdskostnader för avhjälpande av fel/skador. Digitala verktyg medför möjligheter för effektivisering av tidsåtgång samt kostnader. Laserskanning är ett sådant verktyg med likadana möjligheter. Kunskapen om laserskanning är emellertid inte omfattande inom byggnadsbranschen och/eller så antar man att det kostar mycket. Målet med arbetet var att jämföra laserskanning gentemot manuell (traditionell) uppmätning för att veta vilken metod som är mer fördelaktig med avseende på olika faktorer ur ett lönsamhetsperspektiv. Metod: För att uppnå arbetets mål användes en undersökningsstrategi som var både kvalitativ samt kvantitativ. Med litteraturstudie och intervjuer samlades kunskap om fördelar/nackdelar för de båda uppmätningsmetoderna (laserskanning och manuell uppmätning) samt faktorer som påverkar lönsamheten vid användning utav dessa. Beräkningar genomfördes för att jämföra kostnader för metoderna beträffande projektets komplexitet. Resultat: Det genererade resultatet visar att laserskanning har fler fördelar än manuell uppmätning. Laserskanning tar mindre tid att utföra vid större projekt och medför en större noggrannhet på relationshandlingar än manuell uppmätning bland annat. Ur ett kostnadsmässigt lönsamhetsperspektiv är det viktigt att för varje specifikt projekt göra egna beräkningar för att se vilken uppmätningsmetod som blir billigast. Det projektet som användes i detta arbete hade varit mer lönsam med laserskanning som uppmätningsmetod, medan det för andra projekt eventuellt kan vara mer lönsamt med manuell uppmätning. Konsekvenser: Studien indikerar på att laserskanning är mer lönsam vad det gäller tid. Laserskanning bör väljas som uppmätningsmetod om man vill spara tid vid större projekt samt få bättre noggrannhet vilket medför mindre fel i projekteringen. Undersökningen ger även beställare och entreprenörer en bättre syn på vilka fördelar man får genom att använda sig av laserskanning. Begränsningar: Undersökningen var begränsad till att endast behandla markbunden laserskanning vid uppmätning av befintliga byggnader inför ombyggnationer, därför kan inte resultatet generaliseras till andra typer utav laserskanning. Nyckelord: Laserskanning, Manuell uppmätning, BIM, Lönsamhet, Ombyggnation, Komplexitet, LOD.
38

Tidplanering – En fallstudie som jämför traditionella metoder och BIM-baserade metoder / Time Scheduling- A case study that compares traditional methods and BIM-based methods

Fagerblom, Albin, Kulak, Patryk January 2020 (has links)
Syfte: Det finns idag stor förbättringspotential i arbetet med logistik och tidplanering på byggarbetsplatser. Ökad komplexitet har lett till ökade krav på detta. Dock har det visats i studier att byggbranschen är en av de minst digitaliserade branscherna som finns, trots alla verktyg som finns. Syftet med studien är att undersöka fördelar med att använda sig av BIM i arbetet med logistik- och tidplanering jämfört med de traditionella metoder som finns, och på så sätt se hur detta arbete kan effektiviseras. Metod: De valda undersökningsmetoderna för att besvara våra frågeställningar är fallstudie samt litteraturstudie. Dessa metoder lämpar sig bäst för den typen av studie som ska utföras. Empirin är insamlad via intervjuer med anställda på Gärahovs Bygg AB. Resultat: Studien har visat att respondenterna tror att kommunikationen mellan olika aktörer i projektet, till exempel entreprenörer och underentreprenörer, kan förbättras med hjälp av den BIM-baserade metoden. De tror också att det blir lättare att se att allt tas med i planeringen i projekteringsskedet. Nyttan med att använda BIM: • BIM-metoden kan ge en visuell fördel i kommunikationen mellan entreprenörer och underentreprenörer. • BIM-metoden kan ge en tydligare bild av hur arbetet ska fortskrida genom visuella simuleringar. • BIM-metoden kan göra det lättare att i tidplaneringsskedet se om alla tänkta aktiviteter finns med i planeringen. • BIM-metoden kan göra det lättare att göra avstämningar mot tidplanen under projektets gång. Begränsningar: Begränsningar är att endast göra en tidplan över en typlägenhet i ett projekt, och gör jämförelser endast med denna. Studien har endast gjorts tillsammans med ett företag. För att få högre trovärdighet i resultatet behövs fler företag att jämföra med. En simulering av en större modell hade kunnat ge en ännu klarare bild av vilka fördelar och nackdelar som finns med BIM-metoden. / Purpose: Today there is big room for improvements in the work with logistics and scheduling on construction sites. Increased complexity has led to increased demands on planning. However, studies have shown that construction is one of the least digitalised industries today, in spite of all tools available. The purpose of the study is to study the advantages of using BIM in the work with logistics and scheduling compared to the traditional methods available, and in that way see how this increase efficiency. Method: The research methods that was chosen to answer our issue are case studies and literature studies. Those methods are the best suited for these types of studies that are going to be done. Collection of data has been made through qualitative interviews with employees at Gärahovs Bygg AB. Findings: The study has shown that the interviewees believe that communication between different participants in the project can be improved using the BIM-based method. They also believe that it will be easier to see that everything is included in the planning phase. The benefit of using BIM: • The BIM method can provide a visual advantage in the communication between contractors and subcontractors. • The BIM method can give a clearer picture of how the work will proceed through visual simulations. • The BIM method can make it easier to see if all the planned activities are included in the planning phase. • The BIM method can make it easier to make reconciliations against the schedule during the project. Limitations: The study is limited to only make a production schedule over one typeapartment in a project, and to only make comparisons with this. The study has only been made together with one company. For a more reliable result, more companies would have to be included in the study. A simulation of a larger model could have given an even clearer picture of what advantages and disadvantages that comes with the BIM-based method.
39

Návrh datové reprezentace s podporou spojitému modelování úrovní geometrického detailu prostorových objektů / Data representation for smooth level of detail of spatial objects

Feber, Lukáš January 2021 (has links)
The thesis deals with the concept of level of detail and its use in 3D GIS. The aim of this work is to design a data structure that will allow continuous rendering of discrete 3D building models with different levels of geometric detail, which were created by generalization method based on mathematical morphology approach. The proposed solution creates links of corresponding geometric primitives of models at different level of detail at first and then reconstructs them using the extrusion method. The data structure created in this way is able to generate and render any model, including intermediate models, which are represented as slices through the data structure across the axis of geometric detail.
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Construction of an enzyme-free electrochemical sensor based on Ag-Fe2O3/POM/RGO novel nanocomposite for hydrogen peroxide detection

Nqakala, Noniko Civilized January 2018 (has links)
>Magister Scientiae - MSc / The motivation to determine H2O2 lies in the fact that this chemical species plays a crucial role in diverse fields of practise such as cosmetic, food, diagnostic, pharmaceutical, clinical and environmental protection industries. Several methods such as chromatography, colorimetry, titrimetry and spectrophotometry have been developed for its detection. However, these methods are known to manifest underlying disadvantages such as high cost, time consuming, instability and complicated immobilization procedures. In this present study an enzyme-less electrochemical sensor based on Ag-Fe2O3/POM/RGO nanocomposite (POM stands for polyoxometalate and RGO stands for reduced graphene oxide) was successfully synthesised via a hydrothermal method and a photochemical reduction method for the detection of hydrogen peroxide (H2O2).

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