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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.
11

[en] A DATA REFERENCE ARCHITECTURE FOR BRAZILIAN ELECTRICAL COMPANIES / [pt] UMA ARQUITETURA DE REFERÊNCIA PARA DADOS DE EMPRESAS DO SETOR ELÉTRICO BRASILEIRO

MARCELO DE CARVALHO 03 June 2024 (has links)
[pt] Durante a década de 1990, o setor elétrico brasileiro passou por profundas mudanças em seu modelo operacional. O Estado Brasileiro passou a assumir um papel menos desenvolvimentista e mais regulatório, o que levou a criação da Agência Nacional de Energia Elétrica (ANEEL). Um dos papéis da ANEEL é assegurar a qualidade do serviço prestado pelos agentes do setor (empresas de geração, transmissão e distribuição de energia). Quando um agente não cumpre os padrões estabelecidos, a ANEEL pode aplicar penalidades. Nesse sentido, o aprimoramento dos processos de manutenção desempenham um papel crucial na garantia da confiabilidade e eficiência de sistemas elétricos e consequente redução de penalidades. A manutenção preditiva passa a ser adotada, em complemento às metodologias mais tradicionais (reativa e preventiva). Contudo, essa metodologia representa uma mudança fundamental em relação às anteriores, pois busca antecipar falhas com base em dados e análises. Nesse sentido,a incorporação da manutenção preditiva nos processos de manutenção, pressupõe a disponibilidade de dados de operação e manutenção dos equipamentos, bem como de recursos tecnológicos que viabilizem a análise desses dados. Essa dissertação propõe uma arquitetura tecnológica de referência, que habilite o desenvolvimento dessas análises, considerando aspectos de gestão, governança e conformidade empresariais praticados pelos agentes do setor. / [en] During the 1990s, the Brazilian electricity sector underwent profound changes in its operational model. The Brazilian state began to assume a less developmental and more regulatory role, leading to the creation of the National Electric Energy Agency (ANEEL). One of the roles of ANEEL is to ensure the quality of service provided by sector agents (energy generation, transmission, and distribution companies). When an agent does not meet established standards, ANEEL can apply penalties. In this sense, the improvement of maintenance processes plays a crucial role in ensuring the reliability and efficiency of electrical systems and consequently reducing penalties. Predictive maintenance is being adopted, in addition to more traditional methodologies (reactive and preventive). However, this methodology represents a fundamental change compared to previous ones, as it seeks to anticipate failures based on data and analysis. In this sense, the incorporation of predictive maintenance into maintenance processes presupposes the availability of operating and maintenance data of the equipment, as well as the technological resources that enable the analysis of these data. This dissertation proposes a reference technological architecture that enables the development of these analyzes, considering aspects of management, governance, and corporate compliance practiced by the sector s agents.
12

Ordning och reda : Utrustningshantering i skola

Waldfelt, Fredrik January 2019 (has links)
The main purpose of this project is to create a system where Älvdalens Utbildningscentrum can manage the equipment that is made available for their staff and students. This equipment can be computers, clothes, cycles or other things that is needed in the education or at work. Since there is no central management today there is a chance for financial loss when students or staff leaves. The technical solution in this project uses ASP.NET MVC Core and Microsoft Azure, where authentication is based on an existing Azure Active Directory. Since the system that has been developed during this project not yeat have full functionality, this report should be seen as a suggestion how to solve the problem. Further development of the suggested system will continue outside of this project. / Detta projekts huvudsakliga syfte är att skapa ett system där Älvdalens Utbildningscentrum kan hantera den utrustning som tillhandahålls för dess personal och elever. Denna utrustning kan bestå av dator, kläder, cyklar eller andra saker som är nödvändiga i undervisning eller arbetet. Då det saknas en central hantering av detta idag finns risken för ekonomiska förluster när elever eller personal slutar. Den tekniska lösningen i detta projekt använder ASP.NET MVC Core och Microsoft Azure, där autentisering är baserad på befintligt Azure Active Directory. Då det system som utvecklats under detta projekt inte har full funktionalitet ännu, kan denna rapport ses som ett lösningsförslag på det problem. Vidare utveckling av det föreslagna systemet fortsätter utanför detta projekt.
13

Towards an MPI-like Framework for Azure Cloud Platform

Karamati, Sara 12 August 2014 (has links)
Message passing interface (MPI) has been widely used for implementing parallel and distributed applications. The emergence of cloud computing offers a scalable, fault-tolerant, on-demand al-ternative to traditional on-premise clusters. In this thesis, we investigate the possibility of adopt-ing the cloud platform as an alternative to conventional MPI-based solutions. We show that cloud platform can exhibit competitive performance and benefit the users of this platform with its fault-tolerant architecture and on-demand access for a robust solution. Extensive research is done to identify the difficulties of designing and implementing an MPI-like framework for Azure cloud platform. We present the details of the key components required for implementing such a framework along with our experimental results for benchmarking multiple basic operations of MPI standard implemented in the cloud and its practical application in solving well-known large-scale algorithmic problems.
14

Förändringar i informationshanteringen med användandet av molntjänster : Förändringsanalys hos ett företag inom retailbranschen / Changes in information management with the use of cloud services

Ruist, Sofia, Nehl, Andreas January 2016 (has links)
Den här studien, som har bedrivits i samarbete med konsultföretaget Pipe, har studerat informationshanteringsprocessen hos småföretag inom retailbranschen. Företaget som ägnar sig åt butiksplanering med hjälp av CAD-program har idag ingen koppling mellan CAD-programmet och den molndatabas som lagrar information. Syftet med arbetet är att beskriva hur ett åtgärdsförslag skulle kunna se ut för att företaget ska kunna förbättra sin informationshantering genom användandet utav en molndatabas. Vi har även beskrivit problemområdet kring kopplingar mellanmolndatabaser och designprogram. För att besvara studiens syfte har vi genomfört en fallstudie, och svaret på forskningsfrågorna, 1. Hur ser informationshanteringsprocessen ut idag? 2. Hur kan informationshanteringsprocessen förbättras? 2. Vilka arbetssteg skulle kunna tas bort om företaget inför en koppling mellanmolndatabasen och designprogrammet? 3. Är en molnbaserad lösning ett möjligt alternativ för att använda för småföretag i retailbranschen? 4. Hur ser det ut i andra branscher som använder sig av CAD-program? Har vi hittat genom att genomföra intervjuer. Intervjuerna har hjälpt oss att genomföra en förändringsanalys där vi genom handlingsgrafer och mål- och problemlistor har kommit fram till ett antal åtgärdsförslag som företaget bör genomföra för att förbättra sin informationshanteringsprocess. Utifrån förändringsanalysen har vi kunnat dra slutsatsen att informationshanteringsprocessen skulle kunna förbättras och snabbas upp genom att införa en koppling mellan designprogrammet och en molndatabas. Detta skulle innebära att material automatiskt laddas upp från designprogrammet tillmolndatabasen, som även kunden har tillgång till. På så sätt samlas all information på ett och samma ställe. Genom litteraturstudier har vi också kommit fram till att en molnbaserad lösning vore möjligt för företaget, då det är en billig och smidig lösning för företag som inte har så stora resurser. / This study, which was conducted in collaboration with the consulting firm Pipe, studied information management processes of small businesses in the retail industry. The company dedicated to design store using CAD software today has no connection between the CAD program and the clouddatabase that stores information. The aim is to explore how the proposed measures might take for the company to improve their information management through the use out of a clouddatabase. We have also described the problem area of the connections between the cloudatabases and design applications. To answer the study's end, we conducted a case study and answer research questions, 1. How does the information management process work today? 2. How can the information management process be improved? 2. What work steps could be taken away if the company faced a link between the clouddatabase and design software? 3. Is a cloud-based solution suitable to use for small businesses in the retail industry? 4. What is the situation in other industries that use CAD software? We found by conducting interviews. The interviews helped us to implement a change analysis in which we act through graphs and goal- and problem lists have come up with a number of proposed measures that the company should implement to improve their information management process. Based on the analysis of change, we have to conclude that the information process could be improved and speeded up by introducing a link between design software and a clouddatabase. This would mean that the material is automatically uploaded from your design software to the clouddatabase, which is also the customer has access to. In this way, gather all the information in one place. Through literature studies, we have also come to the conclusion that a cloud-based solution would be appropriate for the company, since it is a cheap and convenient solution for companies that do not have as many resources.
15

Analytics as a Service : Analysis of services in Microsoft Azure

Winberg, André, Golrang, Ramin Alberto January 2017 (has links)
No description available.
16

Microsoft  Azure i IoT-utveckling / Microsoft Azure in IoT development

Persson, Henrik January 2017 (has links)
AF’s office in Karlstad currently offer consultation regarding Internet of Things but are looking to expand into development of services. They have requested that an end-to-end solution is developed in order to demonstrate the technology to potential clients. This thesis describes the work performed to realize an end-to-end solution for connecting sensors and actuators to the cloud. It also describes the problems experienced while working with Microsofts platform for cloud services, Azure. / Företaget ÅFs Karlstadkontor bistår i dagsläget med konsultering gällande Internet of Things men vill även börja utveckla och sälja tjänster. För att kunna demonstrera teknologin för potentiella kunder har de begärt att en end-to-end-lösning utvecklas. Den här uppsatsen beskriver det arbete som har utförts för att realisera en end-to-end-lösning för att koppla sensorer och ställdon till molnet. Den redogör även för de svårigheter som upplevdes gällande Microsofts plattform för molntjänster, Azure.
17

Quantitative comparison of SensibleThings and Microsoft Azure IoT Hub

Jiang, Yiliang January 2016 (has links)
With the development of the Internet-of-Things, more and more IoT platforms come up with different structures and characteristics. Making balance of their advantages and disadvantages, we should choose the suitable platform in differ- ent scenarios. For this project, I make comparison of a cloud-based centralized platform, Microsoft Azure IoT hub and a fully distributed platform, Sensi- bleThings. Quantitative comparison is made for performance by 2 scenarios, messages sending speed adds up, devices lie in different location. General com- parison is made for security, utilization and the storage. Finally I draw the con- clusion that SensibleThings performs more stable when a lot of messages push- es to the platform. Microsoft Azure has better geographic expansion. For gener- al comparison, Microsoft Azure IoT hub has better security. The requirement of local device for Microsoft Azure IoT hub is lower than SensibleThings. The SensibleThings are open source and free while Microsoft Azure follow the con- cept “pay as you go” with many throttling limitations for different editions. Microsoft is more user-friendly.
18

Migrering av en applikation till datormolnet Windows Azure / Migration of the an application to the cloud Windows Azure

Svensson, Linus, Nguyen, Anders January 2010 (has links)
Sammanfattning Den här uppsatsen beskriver arbetet bakom migreringen av en .NET webapplikation skriven i C#, kallad AMM, till en molnapplikation som sedan lagts upp på Windows Azure datormoln. Arbetet är gjort på uppdrag av Sogeti Karlstad som är ett konsultföretag för IT-relaterade lösningar. Målet bakom migreringen var att utreda om Windows Azures molntjänst lämpade sig till att användas för mindre applikationer såsom denna. Själva uppgiften var att få applikationen att fungera i Windows Azures datormoln samt att förbättra befintliga funktioner inom applikationen. Resultatet blev en applikation som drivs helt och hållet av Microsoft Windows Azure, och den har funktionen att kunna skapa nya databaser beroende spå hur många kunder som använder sig av tjänsten.
19

Limitations of Azure in GIS Scalability : A performance and migration study

Bäckström, Jonas January 2012 (has links)
In this study, the cloud platform Windows Azure has been targeted for test implementations of Geographical Information System (GIS) software in the form of map servers and tile caches. The map servers included were GeoServer, MapNik, MapServer and SharpMap, which together with the tile caches, GeoWebCache, MapCache and TileCache, were installed on Windows Azures three different virtual machine roles (Web, Worker and VM). Furthermore, different techniques for scalingapplications and internal role communication are presented, followed by four sets of performance tests. The performance tests attempt to highlight the differences in request times, how the different role sizes handle the load from the incoming requests, how the different role sizes handle many concurrent TCP-connections and how well the incoming requests are load balanced in between the worker roles. The test implementations showed that all map servers and tile caches were successfully installed in Azure, which leads to the conclusion that Windows Azure is suitable for hosting GIS software with similar installation requirements to the previously mentioned software. Four different approaches (Direct mapping, Public Internal Endpoints, Queue and Worker Role Request Broker) are presented showing how Azure allows different methods in order to scale the internal role communication as well as the external client requests. The performance tests provided somewhat inconclusive test results due to hardware limitations in the test setup. This made it difficult to draw concluding parallels between the final results and the expected values. Minor tendencies in performance gain can be seen when scaling the VM size as well as the number of VMs.
20

Administratörsverktyg för IOT-enheter / Administrator Tool for IOT-Devices

Wahlman, Johan January 2015 (has links)
IoT (Internet of Things) are devices which are usually equipped with different kinds of sensors, these sensor values are then sent to a server where these values are somehow processed. It’s predicted that the usage of IoT devices will increase significantly during the upcoming years.   Microsoft has a service named Azure IoT Hub, which is designed for easy administration of IoT devices, but Azure IoT Hub provides no user interface to administer these IoT devices. The task of this project is to create a user interface for Azure IoT Hub. / IoT (Internet of Things) är enheter som vanligtvis är utrustade med olika slags sensorer, dessa sensorvärden skickas sedan till en server där dessa värden på något sätt bearbetas. Det förutspås att användandet av IoT enheter kommer att öka signifikant under de kommande åren.   Microsoft har en tjänst som heter Azure IoT Hub, vilket är designat för att enkelt administrera IoT enheter, men Azure IoT Hub tillhandahåller inget gränssnitt för att kunna administrera dessa IoT enheter. Uppdraget för detta projekt var därför att skapa ett gränssnitt för Azure IoT Hub.

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