This research work focuses on the geometry and shape effects on submicron magnetic material. A web based micromagnetics program is written to model the hysteresis loop of nano magnetic samples with arbitrary geometry shapes and multiple magnetic materials. Three material samples have been modeled with this program along with nano magnets with a variety of geometric shapes. Shape anisotropy has been introduced to a permalloy ring by adding a cross-tie structure with various widths. The in-plane hysteresis loop and reversal behavior have no notable difference in direction parallel to the cross-tie, but greatly changed in perpendicular and diagonal directions. The switching field distribution is significantly reduced. The two distinct "onion" bit states of the modified ring elements are stabilized in the hysteresis in the diagonal direction. The changes in the modified rings make them better candidates for Magnetic Random Access Memory elements. Two Pac-Man elements, PM I and PM II, geometrically modified from disc and half disc respectively, are modeled. The PM I element undergoes a magnetic reversal through a two-stage mechanism that involves nucleation in the left and right middle areas followed by vortex core formation and vortex core motion in the lower middle area. The reversal process of the PM II element lacks the vortex core formation and motion stage. The switching field of the PM I and PM II elements are the same but the switching field distribution of the PM II elements is much narrower than that of the PM I element. Only the PM II element meets MRAM application requirements. The thickness dependence of the magnetic properties of a core-shell structure has been studied. The nano particles have a cobalt core and a permalloy shell. The nano spheres are the same size but with various shell thickness. Simulations reveal a multi-stage reversal process without the formation of a Bloch wall for thin-shell structure and smooth reversal process with the formation and motion of a Bloch wall for thick-shell structure. Gradual transition of the hysteresis loop patterns has been observed.

Tracking an individual specimen can be a difficult task especially when one also has to keep track of the environmental factors that affect the tracked specimen’s behavior. The task of tracking these animals becomes impossible when they become submerged in water and their number increases to more than just one. The aquatic species that are being tracked by this project in Lake Pontchartrain and the Gulf of Mexico are: tarpon, scalloped hammerhead, whale shark, tiger shark, yellowfin tuna, spotted seatrout, redfish, and bull shark. We are tracking these fish using acoustic and satellite transmitters. The insertion of transmitters in the fish was handled by the Louisiana Department of Wildlife and Fisheries biologists. The acoustic transmitters were implanted on smaller fish that only swam in Lake Pontchartrain. Due to this, receivers were only implanted at locations across the lake on various types of attachments such as buoys, PVC pipes, and pilings. These receivers were positioned at more than ninety locations in order to maximize the acquisition of detections. These species were tracked in Lake Pontchartrain and the Gulf of Mexico. After this preliminary setup, a constant batch of data was generated on a regular basis and this data was process by the application developed in this project. A Ruby on Rails application was then setup in order to store this data and manipulate it to display an animated track. The application utilizes: Ruby, Rails, HTML, CSS, SQL, JavaScript and multiple third part libraries. Many optimizations were performed in order to ensure reliability and performance when loading a high volume of fish or if a high volume of users were to use the application.

The thesis deals with function and structure of web applications, describes the individual technologies used in these applications. It also explains how to create for the purpose of high efficiency and easy development. The main part presents technologies to speed up the applications, explain their settings and properties. Finally, the technologies are thoroughly tested, evaluated benefits of use and recommended the application for future development.

This work applies to an electronic solution for administration of the company's library. On the basis of an analysis of the current access and its defects a list of qualitative and functional requests for application, which is consequently drafted and implemented, has been compiled. The final system has a form of web application, which is available to its users through Internet browser from an arbitrary device connected to the company's computer net (eventually Internet), including mobile phones etc. Thanks to the fact that the program is based exclusively on open-source technologies, there are no license fees of third parties connected with its setting or operation. The application foremost enables its users (mostly employees of a company) to accede the online book catalogue, search it using different criteria, acquire information about available books and make reservations of the required books to be lent. Librarians within the system administrate especially a book catalogue and reservations and borrows of the books. The program strongly diversifies with its functionality from solution for classic public libraries -- it is possible to register and administrate there the private books of employees, information about current borrow of the given book are available to all users, it is allowed to the employees to dispose the borrows between themselves, users are able to insert commentaries to the books etc. As a part of this work there is a source code of the application and users' manual containing except for description of functions the preview of screens of the system as well.

This thesis aids at comparing two frameworks based on Python and Ruby used for agile web development. Besides the basic description, history and philosophy of both Django and Ruby on Rails, all criteria used for their evaluation are laid down, described and put into wider context. In addition, the implementation of the MVC architecture in both frameworks is described along with the basic project structure and tools available.

This work deals with methodologies of software development, particularly web applications. Its main objective is to propose a methodology that helps ensure quality web development and prevents a number of frequently recurring problems. The first chapter deals with characteristics of current state and defines the need for process and discipline, the need for team development and the importance of appropriate tools. The second chapter describes the specifics of the web development. It defines the quality criteria in relation to web applications, particularly the aspects of accessibility, usability and security are concerned. It deals with web frameworks and the benefits and risks arising from their usage. It also outlines requirements for the chosen methodology for web development and describes types of projects to be applied to the methodology. The third chapter analyzes the suitability of the selected life cycle models and methodologies in software development for web applications. The life cycle models consider a model of "program and repair", the waterfall model and incremental model. It also deals with the assumptions of agile methodologies and their level of satisfaction for web development. For the analysis is used the methodology evaluation system METES with which is examined Rational Unified Process, Open Unified Process, Extreme Programming, Scrum and Feature Driven Development. The fourth chapter deals with the characteristic of Open Unified Process methodology. It describes the principles, features and development process. The main chapter deals with the proposal of methodology for web development. As the basis is chosen Open Unified Process methodology, whose elements are supplemented and adapted for web development. As the elements of the methodology are elaborated principles, practices, roles, work products, tasks, delivery process, manuals and guidelines and tools. Each element is adapted to fit the specific needs of web applications. In order to achieve greater control over the quality of web applications there are also included detailed checklists as an integral part of products which are aimed at preventing the most frequently occurring errors and problems. The chapter concludes with an overview of tools that have been validated in web development.

The aim of this work was to design and implement component framework for development of web applications written in PHP programming language. The design has been based on pros and cons analysis of component framework usage, existing framework solution comparison and analysis of drawbacks of these frameworks. End-user device independence is both the main requirement for this framework and also its greatest contribution to the field of web frameworks. To be able to generate different output for mobile and desktop devices and to keep the application logic at one place only, thus minimizing the amount of work required from the developer, it uses its own original implementation of Model-View-Controller architecture. The output is being generated by so called rendering objects associated with individual components. Applications based on this framework are purely event driven, thus having their code more readable and manageable. Framework tries to offer comfortable usage of web applications for mobile device users without forcing application developers to create additional versions of their applications.o tato zařízení.

Computers and similar units are taking a larger part in our lives and we expect ourwork tools to operate the same way the applications in our private units do. Qpick is awarehouse management software in the shape of a web application that is used onhandheld units with the operating system Android, and desktops with the operatingsystem Windows. The purpose of this thesis is to test and examine which well knowntechnical solutions can be used to solve specific problems in a web application.The study is a case study focusing on the software Qpick. To answer the thesis´ tworesearch questions, two Qpick users were interviewed and observed during a shift.Qpicks´ product owner and a Qpick technician were interviewed. The application wasexamined and underwent performance testing, before and after the implementation oftechnical solutions.The result proved that implementing a service worker is a solution to handle lack ofinternet access. Caching of resources is a solution to lower the load on the web serveras well as speeding up the application and making it more responsive. AJAX is asolution to keep the application up to date without having to update the wholeapplication, and not send or receive more information than necessary. localStorage isa solution to store data in the browser. / Tekniken blir en allt större del av vår vardag och vi förväntar oss att våraarbetsredskap ska fungera på samma sätt som applikationerna på våra privata enhetergör. Qpick är en lagerhanteringsmjukvara i form av en webapplikation som användspå handdatorer med operativsystem Android samt truckdatorer med operativsystemetWindows. Syftet med detta examensarbete är att bepröva välkända tekniska lösningarför att lösa specifika problem i en webapplikation.Studien är en fallstudie med inriktning på programmet Qpick, för att besvara studienstvå forskningsfrågor har två Qpick-användare intervjuats och observerats under ettarbetspass. Vidare har Qpicks produktägare samt en Qpick.tekniker intervjuats.Applikationen granskades och genomgick prestandatester både före och efterimplementation av tekniska lösningar.Resultatet visade att implementera en service worker är en lösning för att hanterabristande internetåtkomst, cachning av resurser är en lösning för att minska tryck påwebservern samt göra applikationen snabbare och mer responsiv. AJAX är en lösningför att hålla applikationen uppdaterad utan att behöva uppdatera hela sidans innehåll,och inte skicka och ta emot mer innehåll än det som faktiskt är nödvändigt.localStorage är en lösning för att lagra data i webbläsaren.

This paper delivers a comparative analysis of the performance of three of the NoSQL technologies in Web applications. These technologies are graph stores, key-value stores, and document stores. The study aims to assist developers and organizationsin picking the suitable NoSQL solution for their application. For this purpose, three identical e-book applications were developed. Each of these is connected to adatabase from the selected technologies to examine how they perform compared toeach other against various performance measures.

O advento da tecnologia da Internet, juntamente com a World Wide Web, popularizaram e permitiram uma grande expansão e demanda por aplicações web. Por executarem em um ambiete heterogêneo e complexo, as aplicações web apresentam várias características que as diferenciam dos sistemas tradicionais. As particularidades dessas aplicações tornam o fator qualidade essencial para o sucesso dessas aplicações. Alguns requisitos de qualidade, como usabilidade, confiabilidade, interoperabilidade e segurança devem, então, ser validados. Para assegurar a qualidade desejada, são necessárias executar as atividades de Verificação, Validação e Teste (VV&T). Dentre elas, as mais utilizadas são as atividades de teste. Os critérios, estratégias e ferramentas de teste precisam ser identificados e avaliados para se estabelecer uma relação entre os custos e benefícios entre elas, a fim de guiar a escolha de cada uma durante os testes de aplicações web. A realização de estudos experimentais para realizar essa análise beneficia tanto a academia, nas atividades de ensino e pesquisa, como a indústria, nas atividades de seleção e aplicação de critérios, estratégias e ferramentas de teste de aplicações web. Para que os resultados obtidos estejam acessíveis, é proposto o desenvolvimento de um portal de conhecimento que disponibilize de maneira sistemática o conhecimento obtido sobre critérios, estratégias e ferramentas de teste de aplicações web. Esse portal tem como objetivo oferecer às organizações um ambiente compartilhado de conhecimento, a fim de proporcionar a existência de um ciclo de criação, troca, retenção e reuso do conhecimento / The development of internet technology, along with the World Wide Web, made popular and allowed a demand boom and expansion of web applications. Web applications present some characteristics that differentiate them from the traditional systems, since they execute in a heterogeneous and complex environment. The particularities of these applications demand quality as an essential factor for success. Is this way, quality requirements, like usability, reliability, interoperability and security must be validated. To assure the desired quality, it\'s necessary to execute the activities of Verification, Validation and Test (VV&T), where the most used are the testing activities. The testing criteria, strategies and tools need to be identified and evaluated to establish a relation between the costs and benefits, in order to guide the choice of each one during the tests of web applications. The carrying out of experimental studies benefits the academy, in the activities of education and research, and the industry, in the activities of selection and application of criteria, strategies and tools of testing web applications. Moreover, these results need to be accessible to make available information to the interest people. This work presents the development of a knowledge portal, to facilitate knowledge sharing in a systematic way, with information of test criteria, strategies and tools for validating web applications. This portal intends to offer to the organizations and academic institutions a shared environment of web application test knowledge, in order to constitute a knowledge creation, change, retention and reuse cycle