The main subject of this diploma thesis is the mobile digital distribution market. The first chapter defines important terms and describes the area comprehensively. The second chapter lists examples of some platforms, shows statistical data and introduces common business models. The third chapter compares the Apple App Store and Google Play based on selected criteria. The fourth chapter deals with conducted survey data in order to test the hypothesis that czech consumers in general do not show a difference in attitude towards mobile distribution storefronts compared to their foreign peers. The fifth and last chapter tries to analyze technical backgrounds of varying content availability across different countries. Also, it deals with selected legal issues.

This work deals with communicating issues in public space from citizens to municipalities. The main objective is the creation of a system for reporting those issues using smartphone. The first chapter contains the analysis of existing foreign and domestic projects focused on issues mapping. The second chapter focuses on analysis and design of a new system. The third chapter discuses variants of technologies available for each part of the system. The fourth chapter describes choice of technologies and development of individual parts of the system.

Ingeniero Civil en Computación / Las plantas juegan un rol determinante para la vida humana (y del planeta en general), sin embargo la mayoría de las personas hoy en día saben poco de las especies vegetales que las rodean: si se puede usar como alimento, medicina, si tiene alguna significancia especial para algún grupo humano, etc. Tal conocimiento forma parte del saber humano, sólo que no se ha masificado. Por otra parte, actualmente somos testigos de cómo las tecnologías móviles son accedidas por un público más amplio y de cómo se vuelven más potentes, siendo muy común la disponibilidad de un teléfono, conexión a internet, sistema de posicionamiento, etc. Entre estos dispositivos destacan los que usan los sistemas operativos iOS y Android, que se han posicionado por las facilidades que presentan para el desarrollo de aplicaciones como la documentación en línea, el soporte de amplias comunidades, confiabilidad y estabilidad. Las tecnologías de reconocimiento de imágenes se han introducido con fuerza en las últimas décadas tratando de extraer información semántica de las imágenes: Reconocimiento facial, clasificación de imágenes en medicina, astronomía, entre otras. Dada la naturaleza humana, siendo la visión el sentido más importante, las tecnologías de este tipo constituyen un área de muchísimo interés para la evolución de la tecnología. Con el afán de formar conciencia sobre las especies vegetales que se tienen al alcance, nace la idea de implementar una guía de campo en la que sea fácil hacer búsquedas, tan fácil como hacer una observación de la planta en cuestión, esta observación corresponde a la toma de una fotografía a partir de la cual se entregue el nombre de la especie. Una aplicación que hace esta tarea es leafsnap para el sistema operativo iOS, en esta memoria se presenta el desarrollo de un prototipo que implementa una alternativa para la identificación de especies vegetales por reconocimiento de imágenes para el sistema operativo android. El desarrollo de esta memoria apunta ampliar el impacto de leafsnap, considerando un área geográfica distinta, usuarios de dispositivos android. Además, de contar un servicio web que realice las búsquedas para la identificación de especies, que no requiera la interacción de una aplicación específica sino que sea accesible por cualquiera que desee usarlo.

Orientadores: Antonio Celso Fonseca de Arruda, Paulo Roberto Gardel Kurka / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica / Made available in DSpace on 2018-08-27T18:15:09Z (GMT). No. of bitstreams: 1 Quiroz_CesarHenriqueCordova_M.pdf: 12262976 bytes, checksum: 366530cff1ef38066096c0ad2e8735fe (MD5) Previous issue date: 2015 / Resumo: O trabalho desenvolveu um conjunto de ferramentas simples (interface gráfica e comunicação remota) que permitiram o controle e monitoração dos diferentes sensores e atuadores embarcados em uma cadeira de rodas elétrica. A solução encontrada para realizar os comandos necessários, de modo remoto, foi utilizar um dispositivo móvel (smartphone) baseado em sistema operacional Android. Os principais aspectos considerados no desenvolvimento foram utilizar o hardware e o software que propiciaram uma interface de interação entre o usuário e os atuadores presentes na cadeira de rodas. Adicionalmente foi previsto e viabilizada a possibilidade de um acompanhante efetuar comandos, por meio de outro celular móvel, segundo critérios de prioridade inseridos na programação. A opção por utilizar dispositivos móveis convencionais está vinculada com a capacidade de recorrer, por meio de aplicativos específicos, aos diversos recursos (bibliotecas) que são embarcadas em um telefone móvel ou tablet. O aplicativo criado utilizou o sistema operacional Android pela facilidade de acesso ao código fonte. O aplicativo possibilita o uso dos botões presentes nos smartphones para cumprir tarefas de controle direcional e de velocidade. Adicionalmente sensores ultrassônicos , instalados na cadeira, impedem a colisão com obstáculos presentes no trajeto. Os testes realizados demonstraram a eficácia da movimentação da cadeira, do controle de velocidade e da atuação dos sensores de colisão. A proposta inicial de uma cadeira de rodas elétrica a ser utilizada por crianças, foi estendida para adultos, o que foi comprovado em teste realizado com uma pessoa de 80 quilogramas. A velocidade máxima final independente da carga foi de 0,8m/s (2,88km/h). Na programação do aplicativo foi considerado e implementado um controle para impedir o tranco no início da movimentação, objetivando o fator ergonômico do usuário / Abstract: The work developed a set of simple tools (graphical user interface and remote communication) that allowed the control and monitoring of different sensors and actuators embedded in a electric wheelchair. The solution to make necessary commands remotely, was to use a mobile device (smartphone) based operating system Android. The main aspects considered in the development were using the hardware and software that provided an interaction interface between the user and actuators in the wheelchair. Additionally it was intended and the possibility of a viable accompanying perform controls by means of another mobile phone according to priority criteria included in the programming. The option to use conventional mobile devices is linked with the capacity to use through specific applications, the various resources (libraries) that are embedded in a mobile phone or tablet. The application created used the Android operating system for ease of access to the source code. The application enables the use of buttons present in the smartphones to fulfill directional control and velocity. Additionally ultrasonic sensors installed in the chair, prevent collision with obstacles present in the path. The tests demonstrated the effectiveness of the movement of the chair, speed control and the performance of the collision sensors. The initial proposal of an electric wheelchair to be used by children, has been extended to adults, which has been proven in test performed with a person of 80kg. The independent final maximum speed of the load was $0.8m/s$ or (2,88km/h). In the application programming was considered and implemented a control to prevent stride in the early movement, aiming the ergonomic factor user / Mestrado / Materiais e Processos de Fabricação / Mestre em Engenharia Mecânica

There has been an enormous growth in the usage of smartphones in recent times. Smartphones are not limited to communication purposes. It has various applications designed as per the daily requirements of humans such as web-searching, online shopping, bank transactions, games, etc. With the increase in the usage of the smartphone, the more useful information is captured and stored by it, which raises the question of security. The goal of this research is to develop two android applications. One is a sensor detector application and the second is a screen lock application. The first application will help the user to identify all the hidden sensors and working sensors on the mobile phone. This application even describes the features and usage of every sensor in detail. Using a graphical description of each sensor which depicts the behaviour of each sensor as per environment/movement. The second application is designed using a combination of two sensors. Screen lock applications contain two main factors. One is to work properly in all cases and efficiently do the functions that are required to do. The second is to maintain a smooth inner system interaction because in addition to locking the screen this application should make sure to hide the display of all the other applications without closing the process of these applications. With the increase in the usage of the smartphone, it becomes difficult for older generations to memorize the security pattern techniques and use them. This thesis develops a simple technique in the mobile authentication android application. The thesis is developed on the Android studio platform. The background functionality of the app is coded in java using android SDK tool and frontend of the application is designed using XML files. The GENYMOTION emulator and a mobile phone are used to test the output.

While GPS long has been an industry standard for localization of an entity or person anywhere in the world, it loses much of its accuracy and value when used indoors. To enable services such as indoor navigation, other methods must be used. A new standard of the Wi-Fi protocol, IEEE 802.11mc (Wi-Fi RTT), enables distance estimation between the transmitter and the receiver based on the Round-Trip Time (RTT) delay of the signal. Using these distance estimations and the known locations of the transmitting Access Points (APs), an estimation of the receiver’s location can be determined. In this thesis, a smartphone Wi-Fi RTT based Indoor Positioning System (IPS) is presented using an Unscented Kalman Filter (UKF). The UKF using only RTT based distance estimations as input, is established as a baseline implementation. Two extensions are then presented to improve the positioning performance; 1) a dead reckoning algorithm using smartphone sensors part of the Inertial Measurement Unit (IMU) as an additional input to the UKF, and 2) a method to detect and adjust distance measurements that have been made in Non-Line-of-Sight (NLoS) conditions. The implemented IPS is evaluated in an office environment in both favorable situations (plenty of Line-of-Sight conditions) and sub-optimal situations (dominant NLoS conditions). Using both extensions, meter level accuracy is achieved in both cases as well as a 90th percentile error of less than 2 meters.

When it comes to developing software, it is important to keep in mind a variety of factors. It is paramount that software is fast, responsive, optimized, and able to be stored and used by the end consumer. This is especially true within fields such as medical care or critical systems where the speed is critical to the end-user and where the memory and storage capacity may all be a limiting factor to the software. This paper evaluates the differences in performance between the Java programming language and the Kotlin programming language. This paper evaluates this by comparing performance by experiment, comparing metrics between the two and relevant literature review about the subject. The results show an overall better performance of Java in most occasions, with Kotlin managing to perform better in much fewer benchmarks. These differences are mostly not very significant, however there are exceptions where Kotlin is performing considerably worse. That happens particularly when a lot of the Kotlin idiomatic features are implemented, which add a big overhead and if performance is a big concern, they should be used sparingly.

Den mänskliga klimatpåverkan i Sverige påstås vara i genomsnitt åtta ton per person årligen, vilket är långt ifrån Parisavtalets mål som innebär att den genomsnittliga globala utsläppen bör som högst vara ett ton per person. Under år 2017 uppskattades svenskarnas klimatpåverkan från klädinköp till 4,2 miljoner ton koldioxidekvivalenter sammanlagt under plaggets livslängd. Genom att fördubbla denna livslängd med hjälp av återanvändning skulle klimatpåverkan kunna minskas till nästan hälften, där ett sätt att återanvända är att handla begagnat. Många kan däremot uppleva en stor osäkerhet i detta då varor kan vara piratkopierade.  Syftet med detta projekt är därmed att bidra till tryggare begagnathandel som är både miljövänlig och plånboksvänlig samt förminska handel med piratkopiering. Målet i projektet  är en applikation som skall kunna identifiera märkesvarors äkthet med hjälp av QR-koder och en därtill kopplad databas.  Resultatet av arbetet är en applikation, Safe Second, som kan identifiera märkesvaror samt miljömärkta varor. Applikationen är tillgänglig för Androidenheter där Android Studio är plattformen som har använts för implementation av både frontend och backend. Ingående i backend är databasen där information lagras samt upphämtas, denna är skapad med Firebase Realtime Database. I applikationen har en funktion för lagerstatus även blivit implementerad och uppdateras i realtid, i syfte att kunna underlätta samt öka intresset kring handel i fysiska second hand-butiker, vilket antas kommer att fungera utifrån 93,4% av testpersoner i en enkätundersökning. / The human climate impact in Sweden is claimed to be an average of eight tons per person annually, far from the Paris Agreement's goal, which means that the average global emissions should be a maximum of one ton per person. In 2017, the Swedes' climate impact from clothing purchases was estimated at 4,2 million tons of carbon dioxide equivalents in total during the garment's lifespan. By doubling this lifespan with the help of reuse, the climate impact could be reduced to almost half, where one way of reuse is to shop second-hand. Many, on the other hand, may experience great uncertainty in this as goods can be pirated. The purpose of this project is thus to contribute to safer second-hand trade that is both environmentally friendly and wallet-friendly and to reduce trade in piracy. The goal of the project is an application that will be able to identify the authenticity of branded goods with the help of QR codes and a database attached to it. The result of the work is an application, Safe Second, which can identify branded goods and eco-labeled goods. The application is available for Android devices, where Android Studio is the platform that has been used for the implementation of both frontend and backend. The backend includes the database where information is stored and retrieved; this is created with Firebase Realtime Database. In the application, a function for stock status has been implemented and updated in real-time to facilitate and increase interest in trading in physical second-hand stores, which is assumed to work based on 93,4% of test subjects in a survey.

Phoniro, ett företag som fokuserar på välfärdsteknologi har ett internt utvecklat program för att konfigurera olika larmenheter via Bluetooth. Phoniro behöver en mobilapplikation av detta program för att underlätta fältteknikernas arbete. Syftet med detta examensarbete är att beskriva teorin bakom apputveckling, trådlös kommunikation samt utvecklingen av en mobilapplikation som är körbar på operativsystem som IOS och Android med samma funktionalitet som Phoniros interna program. För att utveckla applikationen valdes arbetsmiljön Xamarin.Forms vilket är ett verktyg för att utveckla mobila applikationer till IOS och Android. Resultatet av detta arbete är en applikation där användaren kan söka efter Bluetooth-enheter samt ansluta och kommunicera med anslutna enheter. För att mäta användarvänligheten av applikationen används en heuristisk utvärdering. Den heuristiska utvärderingen påvisar att 40% fel är oupptäckta i systemet efter en undersökning med tre utvärderare utförts.

Goal of this diploma thesis is to design and develop a mobile application for Android OS. Marketing and monetization plans will be defined and realized for propagation and profit. Aim is to create capable, sellable product for quickly expanding market of mobile applications.