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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.
181

Hemsida renovering för Nordic Elverktyg AB : Använda WordPress-plugins och göra plugins

Xiehui, Mao January 2024 (has links)
This report details the process of building an e-commerce website based on the WordPress platform, with particular emphasis on the use of Elementor and WooCommerce plugins. It demonstrates how these tools can be effectively used for web design and store management. The project was planned using a GANTT schedule, which set clear timelines and task allocations for each phase, ensuring that all tasks were carried out in an orderly manner. Since the team members were distributed across different locations, online collaboration was used, with communication conducted via Discord. Daily stand-up meetings were held where work progress, plans, and issues were reported, allowing for quick problem-solving and plan adjustments. During the development of the website and store, Elementor was used to implement dragand-drop web design, simplifying layout adjustments and style modifications. Combined with WooCommerce, it enabled product display, shopping cart management, payment processing, and other core functions, ensuring a user-friendly shopping experience. For plugin development, Visual Studio Code, PHP, and jQuery, along with other technical tools, were used, and the development and testing were carried out in a local environment to ensure the stability and efficiency of the plugins. Through detailed planning, a flexible collaboration method, and effective technical means, the project successfully achieved its functions and goals, resulting in a high-performance, user-friendly online shopping platform. / Den här rapporten beskriver i detalj processen för att bygga en e-handelswebbplats baserad på WordPress-plattformen, med särskild tonvikt på användningen av Elementor- och WooCommerce-plugins. Det visas hur dessa verktyg effektivt kan användas för webbdesign och butiksadministration. Projektet planerades med hjälp av en GANTT-tidsplan, vilket innebar tydliga tidsramar och uppgiftsfördelning för varje fas, vilket säkerställde att alla arbetsuppgifter genomfördes ordnat. Eftersom teammedlemmarna var utspridda på olika platser användes onlinesamarbete, och kommunikationen skedde via Discord. Dagliga ståmöten hölls där arbetsframsteg, planer och problem rapporterades, vilket möjliggjorde snabb problemlösning och planjusteringar. Under utvecklingen av webbplatsen och butiken användes Elementor för att implementera dra-och-släpp-webbdesign, vilket förenklade layoutjusteringar och stiländringar. Tillsammans med WooCommerce möjliggjordes produktvisning, kundvagnshantering, betalningsbehandling och andra kärnfunktioner, vilket säkerställde en användarvänlig shoppingupplevelse. För plugin-utvecklingen användes Visual Studio Code, PHP och jQuery samt andra tekniska verktyg, och utvecklingen och testningen skedde i en lokal miljö för att säkerställa stabilitet och effektivitet hos pluginerna. Genom detaljerad planering, flexibel samarbetsmetod och effektiva tekniska medel uppnåddes projektets funktioner och mål framgångsrikt, vilket resulterade i en högpresterande, användarvänlig online shoppingplattform.
182

Ontological Reasoning with Taxonomies in RDF Database / Ontological Reasoning with Taxonomies in RDF Database

Hoferek, Ondřej January 2013 (has links)
13548805670613-46162052c208770f99e83a586780d16c.txt As the technologies for the realisation of the idea of the Semantic Web have evolved rapidly during past few years, it is possible to use them in variety of applications. As they are designed with the ability to process and analyze semantic information found in the data in mind, they are particularly suitable for the task of enhancing relevance of the document retrieval. In this work, we discuss the possibilities of identifying a suitable subset of the expressing capabilities of the SPARQL querying language and create a component that encapsulates the technical details of its usage. Page 1
183

Caracterização microestrutural do Aço API 5L X65 soldado por feixe de elétrons com diferentes aportes térmicos / Microstructural characterization of API 5L X65 steel welded by electron-beam with different heat inputs

Monte, Isabel Rocha do 01 July 2013 (has links)
Esta Dissertação abrange a caracterização microestrutural do aço API 5L X65 soldado por feixe de elétrons (EBW) com cinco diferentes aportes térmicos e sem o uso de metal de adição. O aço API 5L X65 pertence à classe de aços ARBL e é empregado na fabricação de oleodutos e gasodutos. As três regiões da solda metal-base (MB), zona termicamente afetada (ZTA) e zona fundida (ZF) foram caracterizadas por microscopia ótica (MO), microscopia eletrônica de varredura (MEV), difração de raios X e medidas de microdureza Vickers. As microestruturas encontradas nestas três regiões são bastante distintas. O MB apresenta grãos ferríticos com bandas perlíticas orientadas paralelamente à direção de laminação. Devido à elevada densidade de potência do processo EBW e às elevadas velocidades de soldagem utilizadas, a ZTA é bastante estreita sendo formada por grãos ferríticos finos e bandas perlíticas degeneradas que a diferem do MB. Na interface ZTA/ZF foi possível observar a presença de grãos com morfologia acicular com a presença dos constituintes M-A (martensita-austenita). A ZF apresentou morfologia similar à encontrada em aços microligados soldados: ferrita alotriomórfica, ferrita acicular, ferrita de Widmanstätten, constituintes M-A, além de regiões bainíticas. Na parte central da chapa foi observada a segregação de manganês. A técnica EBW permite a soldagem de tubos com paredes espessas com apenas um passe. Os resultados desta Dissertação são úteis para avaliar a viabilidade técnica do uso de EBW na fabricação de tubos para o transporte de óleo e gás, especialmente em aços mais resistentes (bainíticos). / This Dissertation aims at the microstructural characterization of electron-beam welded (EBW) API 5L X65 steel using five different processing conditions (heat input) and without filler metal addition. The API 5L X65 steel is a high-strength low-alloy (HSLA) steel employed mainly in the manufacture of pipelines for oil and gas. The three regions of the welds, namely the base metal (BM), heat affected zone (HAZ) and fusion zone (FZ) were characterized by light optical microscopy using different chemical etching agents, scanning electron microscopy, X-ray diffraction and Vickers microhardness testing. The microstructures found in the three regions were quite distinct. The BM consists of elongated ferritic grains with pearlite bands oriented along the rolling direction. Due to the high power density provided by EBW, the HAZ is very narrow and consists of ferritic grains and bands of degenerated pearlite. At the HAZ/FZ interface it is possible to observe the presence of grains with acicular morphology and the presence of M-A (martensite- retained austenite) constituents. The FZ showed a morphology similar to that one found in molten microalloyed steels consisting of allotriomorphic ferrite, acicular ferrite, Widmanstätten-like ferrite, M-A constituents, as well as bainite. In the central part of the plate it was observed the presence of Mn-segregation lines along the BM. The electron beam welding was chosen because it produces a relatively small HAZ and it allows the welding of thick-wall tubes in one single pass. The results of this work are useful to evaluate the possibility of using EBW in the manufacture of pipelines for transport of oil and gas, especially in higher grade steels.
184

Simulação física e caracterização de zonas afetadas pelo calor de aços API 5L grau X80. / Physical simulation and characterization on heat affected zones of API 5L grade X80 steels.

Sanchez Chavez, Giancarlo Franko 07 October 2011 (has links)
Os aços para tubos API 5L X80 são aços de alta resistência e baixa liga (ARBL) usados na fabricação de tubos para o transporte de gás e petróleo conduzidos através de dutos. Os tubos API 5L X80 se caracterizam por terem excelentes propriedades mecânicas como resistência à tração, tenacidade, ductilidade e resistência à corrosão, além de boa soldabilidade. Estes tubos trazem muitos benefícios como, por exemplo, o fator econômico já que ao ter boa resistência mecânica estes tubos podem ser fabricados com espessuras de parede menores. Estas reduções nas espessuras diminuem os custos de transporte, construção, soldagem e instalação. Além disso, estes tubos podem ser fabricados com grandes diâmetros, permitindo o transporte de grandes quantidades de fluidos a elevadas pressões e vazões. A tenacidade confere ao material a propriedade de ser resistente à fratura frágil, uma vez que estes tubos em sua maioria trabalham em condições ambientais severas. O objetivo deste trabalho é simular fisicamente e estudar as propriedades mecânicas de regiões da zona afetada pelo calor (ZAC) produzidas por diferentes ciclos térmicos, que ocorrem quando o tubo é fabricado e o duto montado. A ideia foi estudar a ZAC produzida no tubo fabricado pelo processo UOE (solda longitudinal) e a solda feita no campo quando o tubo é montado (solda circunferencial) além da ZAC na intersecção entre a soldagem longitudinal e circunferencial. Foram usinados corpos-de-prova nas orientações L-T e T-L e com o cordão de solda longitudinal do tubo no centro. Estes corpos-de-prova foram submetidos a quatro ciclos térmicos únicos com temperaturas máximas de 650, 800, 950 e 1300 °C e ciclos térmicos multipasse 950-800 e 950-800- 650 °C. Estes corpos-de-prova foram submetidos a diferentes ensaios e caracterizações. Foram feitos ensaios de impacto a 0 °C, as superfícies fraturadas foram analisadas no MEV e mediu-se a expansão lateral produzida pelo ensaio de impacto. Mediu-se a dureza da microestrutura por meio do ensaio Vickers com 300g de carga. A microestrutura da ZAC foi caracterizada por microscopia óptica, com ataque convencional e ataque colorido Klemm, e microscopia eletrônica de varredura. Metalografia quantitativa foi usada para obter a quantidade de perlita na matriz dos corpos-de-prova. A trajetória da fratura na microestrutura dos corpos-de-prova simulados, provocada pelo ensaio Charpy, foi analisada com microscopia óptica e eletrônica de varredura. Os resultados mostraram que as energias absorvidas no ensaio de impacto pelos corpos-de-prova simulados cumprem com os requisitos exigidos pela norma API 5L para o metal base sem simulação e que as microestruturas observadas variam segundo o tipo de ciclo térmico aplicado a cada posição do tubo. / API 5L Grade X80 steel are high strength low alloy steels (HSLA) used in the manufacture of pipes for transporting oil and gas by pipelines. API 5L X80 pipes are characterized by having excellent mechanical properties such as tensile strength, toughness, ductility, corrosion resistance, and good weldability. These pipes bring many benefits, for example, the economic factor related to the good mechanical strength of these tubes which can be produced with smaller wall thicknesses. This reduction in thickness lowers costs for transportation, construction, welding and installation. In addition, these tubes can be fabricated with large diameters, allowing the transport of large amounts of fluids at high pressures and flow rates. The toughness gives, to this material, the characteristic of being resistant to brittle fracture, since these tubes mostly work in aggressive environmental conditions. The objective of this work is to physically simulate and study the mechanical properties of regions of the heat affected zone (HAZ) produced by different thermal cycles, which occur when the duct pipe is manufactured and assembled. The idea was to study the HAZ produced in the pipe manufactured by the UOE process (longitudinal weld) and the welding done in the field when the tube is mounted (HAZ beyond the intersection between the longitudinal and circumferential welding). Charpy V samples were machined in the L-T and T-L orientations and in the longitudinal weld in the center of the tube. These samples were subjected to single thermal cycles with maximum temperatures of 650, 800, 950 and 1300°C and multipass thermal cycling with maximum temperatures of 950-800 and 950-800-650°C. The samples were subjected to different tests and characterizations. Impact tests were made at 0°C, measured the lateral expansion produced and the surface fracture were examined under SEM. Vickers 300g microhardness was also measured in the simulated HAZ region. The microstructure of the HAZ was characterized by optical microscopy with conventional etching and Klemm colorful etching, and scanning electron microscopy. Quantitative metallography was used to obtain the amount of pearlite in the matrix of samples. The Charpy V fracture propagation path trajectory in the simulated microstructure was analyzed with optical microscopy and scanning electron microscopy. The results showed that the Charpy V absorbed energy by the simulated samples complies with the requirements of the API 5L standard for the base metal without simulation and the HAZ observed microstructures vary according to the thermal cycle type applied to each tube position.
185

[en] EFFECT OF THE HIGH FREQUENCY HOT INDUCTION BENDING PARAMETERS AND POST TEMPERING HEAT TREATMENT ON THE STRENGTHENING MECHANISM OF AN API 5L X80 PIPE STEEL / [pt] INFLUÊNCIA DOS PARÂMETROS DE CURVAMENTO A QUENTE POR INDUÇÃO DE ALTA FREQUÊNCIA E REVENIMENTO POSTERIOR SOBRE OS MECANISMOS DE ENDURECIMENTO DE TUBO DE AÇO API 5L X80

RAFAEL DE ARAUJO SILVA 13 March 2019 (has links)
[pt] As correlações dos parâmetros de processamento com a microestrutura e propriedades mecânicas resultantes apresentam grande relevância para o controle da qualidade e manutenção do grau API do tubo curvado por indução. Este trabalho enfoca principalmente nas alterações dos mecanismos de endurecimento para avaliar os efeitos do curvamento a quente e do revenimento posterior. Foi observado que além do refino de grão, a precipitação fina dos microligantes na austenita e a densidade de discordâncias são responsáveis pelas propriedades mecânicas do material como recebido. O endurecimento por solução sólida caracterizado para todas as amostras foi aproximadamente igual. O endurecimento devido ao refino de grão dependeu do fator de endurecimento. Nas curvas as transformações de fases de baixas temperaturas foram induzidas pela elevação da temperabilidade em função de maiores temperaturas de curvamento, contudo a extensão das camadas temperadas ficou limitada pelas taxas de resfriamento. A principal alteração promovida pelo curvamento a quente e diretamente associada ao projeto de liga do aço é devido à inibição da precipitação do vanádio e sua manutenção em solução sólida. O endurecimento das curvas a quente devido à precipitação do molibdênio, transformação de fases e densidade de discordâncias não foi suficiente para atingir o limite de escoamento mínimo especificado pela API, para o grau X80, sem a aplicação de revenimento posterior a 600 graus Celsius para obter precipitação fina de vanádio. / [en] The correlation between high frequency hot induction bending parameters with microstructure and mechanical properties is very important in order to keep the bent pipe within the API grade, in according with the API Specification 5L after the induction bending. The measured values of yield strength are a function of hardening mechanisms in both the tangent end and the bent section. The changes imposed by the thermal cycles of hot bending and tempering can modify the contribution of the strengthening mechanisms. This work aims to evaluate the changes of mechanical properties in the tangent end and the bent section from the point of view of the strengthening mechanisms such as phase transformation, dislocation density and precipitation. The results of the microstructural evaluations of the tangent section have shown that the hardening by grain refinement, precipitation in the austenite and the high dislocation density were responsible for high yield strength. The restrict range of cooling rate originated from the hot bending temperature was the most significant parameter on the microstructure, precipitation, dislocation density and hardening of the layers of the bent section. However, in the bend sections the restriction of precipitation of Vanadium significantly decreased the yield strength level. After hot bending the contributions of the strengthening mechanisms such as precipitation, phase transformation and dislocation hardening did not produce the desired minimum value of 552 MPa for the yield strength. Only after the tempering heat treatment at 600 Celsius degrees it was possible to obtain an increase in the yield strength.
186

InGriDE: um ambiente integrado e extensível de desenvolvimento para computação em grade / InGriDE: an integrated and extensible development environment for grid computing

Guerra, Eduardo Leal 07 May 2007 (has links)
Recentes avanços proporcionaram às grades computacionais um bom nível de maturidade. Esses sistemas têm sido implantados em ambientes de produção de qualidade na comunidade de pesquisa acadêmica e vêm despertando um grande interesse da indústria. Entretanto, desenvolver aplicações para essas infra-estruturas heterogêneas e distribuídas ainda é uma tarefa complexa e propensa a erros. As iniciativas de facilitar essa tarefa resultaram, na maioria dos casos, em ferramentas não integradas e baseadas em características específicas de cada grade computacional. O presente trabalho tem como objetivo minimizar a dificuldade de desenvolvimento de aplicações para a grade através da construção de um ambiente integrado e extensível de desenvolvimento (IDE) para computação em grade chamado InGriDE. O InGriDE fornece um conjunto único de ferramentas compatíveis com diferentes sistemas de middleware, desenvolvidas baseadas na interface de programação Grid Application Toolkit (GAT). O conjunto de funcionalidades do InGriDE foi desenvolvido com base na plataforma Eclipse que, além de fornecer um arcabouço para construção de IDEs, facilita a extensão do conjunto inicial de funcionalidades. Para validar a nossa solução, utilizamos em nosso estudo de caso o middleware InteGrade, desenvolvido no nosso grupo de pesquisa. Os resultados obtidos nesse trabalho mostraram a viabilidade de fornecer independência de middleware para IDEs através do uso de uma interface genérica de programação como o GAT. Além disso, os benefícios obtidos com o uso do Eclipse como arcabouço para construção de IDEs indicam que os recursos fornecidos por esse tipo de arcabouço atendem de forma eficiente as necessidades inerentes ao processo de desenvolvimento de aplicações para a grade. / Computational grids have evolved considerably over the past few years. These systems have been deployed in production environments in the academic research community and have increased the interest by the industrial community. However, developing applications over heterogeneous and distributed infrastructure is still a complex and error prone process. The initiatives to facilitate this task, in the majority of the cases, resulted in isolated, middleware-specific tools. This work has the objective of minimizing the difficulty of developing grid applications through the construction of an integrated and extensible development environment for grid computing, called InGriDE. InGriDE provides a unique set of tools, compliant with different middleware systems, based on the Grid Application Toolkit (GAT). We developed the InGriDE set of features, based on the Eclipse platform, which provides both a framework for building IDEs and the possibility to extend the initial set of features. To validate our solution we used the InteGrade middleware, developed in our research group, as our case study. The results obtained from our work showed the viability of providing middleware independence to IDEs through the use of a generic application programming interface like GAT. Moreover, the benefits obtained through the use of Eclipse as our framework for building IDEs indicates that this kind of framework satisfies the requirements inherent to the grid application development process in a efficient way.
187

REST API & Mobile Application

Grimberg, Marcus, Nord, Ludwig January 2019 (has links)
DH Anticounterfeit, a company working against counterfeit products, has a mobile application that lacks a proper back-end system to handle and store DH Anticounterfeits data. There are plenty of ways to go about to x this problem, but this thesis is focused on the development of a REST API that will be replacing the non-existent system. The main goal is to create the API and run it within a containerized environment using Docker. The whole system should run on Amazon Web Services, that will be working as a server to keep the system going at all times. Nowadays, security is important due to plenty of ways to attack a system, which is why security and authorization will be a high priority. The result will be a well-functioning, high security system that uses MongoDB database to store and process data in a secure way.
188

3D-visualisering av robotsimulering / 3D visaualization of missile simulation

Winell, Johan January 2001 (has links)
<p>Visualization is a rapidly growing area of computer graphics. Due to the very progressive development of computer technology and especially 3D-graphic boards yesterdays imagination of visualizations, today is a reality. </p><p>At Saab Bofors Dynamics in Linköping missile systems are developed. Through the development, different subsystems are simulated before the manufacturing starts. The results of these simulations have to be visualized to get a meaning. The visualizations can be symbolic or more real looking 3D-visualizations. </p><p>During the work an investigation of available tools for computer visualizations on the market has been conducted. The outcome of the investigation has later been the foundation for the selection of tools to solve the visualization task. </p><p>One 3D-visualization application for general 3D-visualization has then been developed using two different 3D-APIs, and the experiences of these have then been analyzed.</p>
189

JEE API technologijų analizė / Analysis of JEE API Technologies

Pocius, Mindaugas 02 July 2012 (has links)
Tikslas: Išanalizuoti Java Enterprise Edition technologiją. Ją taikant, realizuoti aukcionų sistemą.Užduoties pagrindimas: šiai dienai Java programavimo kalba yra pritaikoma vis platesnio masto aplikacijoms kurti. Java EE technologija ateityje tik tobulės, todėl yra naudinga suprasti internetinių aplikacijų kūrimą naudojant Java programavimo kalbą. / Word “Internet” is widely used in our days. Many people can not imagine their lives without it. Companies are looking for technologies which would make their products more attractive to users, provide more user friendly interface and make their products unique. Java EE is to fill this spot.This paper contains short description of Java programming language and short history of Java as a programming language development, followed by general concepts of Java Enterprise Edition and MVC usage in it.
190

Antivirusinių programų failinės sistemos realaus laiko stebėjimo algoritmai / Real-time Tracking System for Antivirus Engines

Talmontienė, Jūratė 19 June 2013 (has links)
Šiame baigiamajame darbe yra nagrinėjami antivirusinėse programose taikomi failinės sistemos realaus laiko stebėjimo metodai – API sąsajos funkcijų perėmimas, failinių sistemų filtravimo tvarkyklės, dėklinės failinės sistemos, FUSE technologijos panaudojimas. Pateikiami metodų privalumai ir trūkumai. Darbo pabaigoje aprašoma C/C++ programavimo kalbomis sukurta realaus laiko failinės sistemos stėbėjimo programa - failinės sistemos filtravimo tvarkyklė ir vartotojo lygio modulis. Darbą sudaro šešios pagrindinės dalys: įvadas, teorinė, analitinė ir programavimo dalys, išvados ir literatūros sąrašas. Darbo apimtis – 54 p. teksto be priedų, 16 pav., 3 lent., 28 bibliografiniai šaltiniai. Atskirai pridedami darbo priedai. / In this final work antivirus file system real-time file system tracking methods – usage of file system filter drivers, API hooking, stackable file systems, FUSE technology for antivirus are analyzed. The pros and cons of these methods are given. At the end of the thesis real-time file system tracking program developed in the C/C++ programming languages is presented. Created program consists of two parts – file system filter driver and user-mode module. Structure of the work: introduction, theoretical, analysis and programming parts, conclusions, references. Thesis consists of: 54 p. text without appendixes, 16 pictures, 3 tables, 28 bibliographical entries. Appendixes included.

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