Creating for the first time GUI (graphical user interface) applications is an endeavor that can be most challenging. This article introduces the general concepts of GUIs and the need to interact with GUI elements only on the so called "GUI thread". The concepts pertain to GUI applications written for Windows, Linux and MacOS alike. Using Java libraries for creating Rexx GUI applications makes these Rexx GUI applications totally platform independent. Taking advantage of BSF4ooRexx even the powerful JavaFX GUI libraries can be exploited by pure Rexx, allowing Rexx programmers to create the most demanding and complex GUI applications in an unparalleled easiness in an astonishing short period of time. The introduced GUI concepts will be demonstrated with short nutshell examples exploiting the JavaFX GUI libraries, empowering the Rexx programmers with the ability to create stable and error free GUI applications in Rexx.

According to NHTSA Traffic Safety Facts [9], bicyclist deaths and injuries in 2013 are recorded as 732 and 48,000, respectively. In the State of Florida the safety of bicyclists is of particular concern as the bicycle fatality rates are nearly triple the national average. Further Florida ranks #1 on bicycle fatality rate in the nation for several years. To determine the cause of near-misses and crashes, a detailed study of bicyclist behavior and environmental conditions is needed. In a Florida Department of Transport (FDOT) funded project, USF CUTR has proposed naturalistic bicycle study based on ride data collected from 100 bicyclists for 3000 hrs. To this end, Bicycle Data Acquisition System (BDAS) is being researched and developed. The main objective of this thesis work is to design and implement low power video and audio subsystems of BDAS as specified by domain experts (USF CUTR researchers). This work also involves design of graphical user interface (Windows application) to visualize the data in a synchronized manner. Selection of appropriate hardware to capture and store data is critical as it should meet several criteria like low power consumption, low cost, and small form factor. Several Camera controllers were evaluated in terms of their performance and cost. The major challenges in this design are synchronization between collected data, storage of the video and sensor data, and design of low power embedded subsystems.

The main goal of this thesis study is the optimization of the basic design parameters of hybrid electric vehicle drivetrain components to minimize fuel consumption and emission objectives, together with constraints derived from performance requirements. In order to generate a user friendly and flexible platform to model, select drivetrain components, simulate performance, and optimize parameters of series and parallel hybrid electric vehicles, a MATLAB based graphical user interface is designed. A basic sizing procedure for the internal combustion engine, electric motor, and battery is developed. Pre-defined control strategies are implemented for both types of hybrid configurations. To achieve better fuel consumption and emission values, while satisfying nonlinear performance constraints, multi-objective gradient based optimization procedure is carried out with user defined upper and lower bounds of optimization parameters. The optimization process is applied to a number of case studies and the results are evaluated by comparison with similar cases found in literature.

Curved bridges with steel/concrete composite girders are used frequently in the recent years. Analysis of these structural systems presents a variety of challenges. Finite element method offers the most elaborate treatment for these systems, however its use is limited in routine design practice due to modeling requirements. In recent years, a finite element program named UTrAp was developed to analyze construction stages of curved/straight composite bridges. The original Graphical User Interface could not be used with the modified computation engine. It is the focus of this thesis work to develop a brand new Graphical User Interface with enhanced visual capabilities compatible with the engine. Pursuant to this goal a Graphical User Interface was developed using C++ programming language together with OPENGL libraries. The interface is linked to the computational engine to enable direct interaction between two programs. In the following thesis work the development of the GUI and the modifications to the computational engine are presented. Moreover, the analysis results pertaining to the newly added features are checked against analytical solutions and recommendations presented in design specifications.

Graphical user interface (GUI) has become the key element of modern information systems and is commonly viewed as one of the decisive factors for the success of an information system project. To help develop effective GUIs, many tools have been introduced by software vendors to meet the needs of designing a variety of interfaces. Such modern design tools offer system developer vehicles to create sophisticated GUI with a few codes. However, the complicity of many GUIs and the varying expectations among users, designers and developers make the communication among them and the use of most prevailing design tools a real challenge. An integrated tool for better design and development of GUIs may help alleviate the problems caused by the mis-communication and the knowledge gaps existing among users, designers and developers. In this paper, a new design tool, which integrates the GUI design techniques embedded in Unified Modeling Language (UML) and the Presentation-Abstraction-Control (PAC) model in Web environment (Net-PAC) is proposed. The potential problems of using vendor-provided design methodology will be presented. Special features of the proposed integrated tool will then be discussed. Some real-world cases using the integrated techniques will be presented to illustrate the advantages of using proposed methodology.

This paper is an analysis of creative opportunities of graphical user interface software of computer mathematics systems. There were two computer mathematics systems chosen: Matlab 7, Maple 10 and Mathematica 5.2 for this work. In order to compare the creative opportunities of graphical user interface software in computer mathematics systems and universal programming languages, C++ Builder 6 system was chosen. In line, there were four application programs groups created in mathematics systems and in C++ Builder system. The process of creating these programs, the peculiarities of the codes and the final result were compared. To sum up, computer mathematics systems may be used for creating application programs. Classical programming tasks may be implemented in these programs. Moreover, computer mathematics systems used for creating software cannot be changed by any other program that needs classical programming constructions, analytic computations and creating of graphical user interface.

Rotor dynamic analysis, which requires extensive amount of data and rigorous analytical processing, has been eased by the advent of powerful and affordable digital computers. By incorporating the processor and a graphical interface post processor in a single set up, this program offers a consistent and efficient approach to rotor dynamic analysis. The graphic user interface presented in this program effectively addresses the inherent complexities of rotor dynamic analyses by linking the required computational algorithms together to constitute a comprehensive program by which input data and the results are exchanged, analyzed and graphically plotted with minimal effort by the user. Just by selecting an input file and appropriate options as required, the user can carry out a comprehensive rotor dynamic analysis (synchronous response, stability analysis, critical speed analysis with undamped map) of a particular design and view the results with several options to save the plots for further verification. This approach helps the user to modify the design of turbomachinery quickly, until an efficient design is reached, with minimal compromise in all aspects.

Στην παρούσα εργασία έγινε μια πρώτη προσπάθεια ενασχόλησης με τα Ασύρματα Δίκτυα Αισθητήρων, πιο γνωστά στον επιστημονικό κόσμο ως Wireless Sensor Networks ή WSNs. Μελετήσαμε τα βασικά χαρακτηριστικά των δικτύων αυτών, όπως οι τοπολογίες τους και η αρχιτεκτονική τους. Επίσης, μελετήσαμε την αρχιτεκτονική των ασύρματων κόμβων που απαρτίζουν το δίκτυο, που είναι γνωστά σαν motes. Τα motes έχουν την ικανότητα τοπικής επεξεργασίας των δεδομένων που συλλέγουν και την ασύρματη μετάδοσή τους σε έναν κεντρικό σταθμό για περαιτέρω επεξεργασία. Τη λειτουργία αυτή διεκπαιρεώνει μια μονάδα μικροεπεξεργαστή με τη χρήση ενός ολοκληρωμένου chip για την ασύρματη μετάδοση. Για τη συλλογή των μετρήσεων μπορούν να φιλοξενήσουν διάφορες πλατφόρμες ψηφιακών αισθητήρων. Στην παρούσα εργασία έγινε χρήση της υπολογιστικής μονάδας micaz και της πλατφόρμας αισθητήρων MTS400/420. Οι πλατφόρμες αυτές φιλοξενούν αισθητήρες υγρασίας/θερμοκρασίας, βαρομετρικής πίεσης/θερμοκρασίας, φωτεινότητας, μέτρησης δονήσεων και ειδικά η 420 πλατφόρμα έχει υποδοχή και για μονάδα GPS. Σκοπός μας ήταν η ανάπτυξη ενός γραφικού περιβάλλοντος μέσω του οποίου θα απεικονίζαμε τις μετρήσεις που έστελναν στον υπολογιστή τα motes. Η ανάπτυξη του γραφικού περιβάλλοντος έγινε στο Matlab. Για το σκοπό αυτό, ήταν απαραίτητη η σύνδεση ενός mote στον υπολογιστή που θα λειτουργούσε σαν ενδιάμεσος αποδέκτης των δεδομένων και θα τα προωθούσε στον υπολογιστή μέσω της σειριακής θύρας. Για την προβολή και αποθήκευση των δεδομένων στον υπολογιστή, έγινε χρήση του interface Χlisten. / At this thesis there was a first attempt of occupation with Wireless Sensor Networks, most kown to the scientific world as WSNs. We studied the basic characteristics of these networks such as topologies and architecture. We also studied the architecture of the wireless nodes which form the network, also known as motes.The motes have the ability of local data computation and the wireless transmition of them to a base station, where they can further processed. This ability is performed by a microprocessor unit with the use of a single integrated chip responsible for the radio transmition. The data collection can be performed by many digital sensor platforms. At this paper, it has been used the micaz computional unit and the MTS400/420 sensor platform of Crossbow company. These platforms are integrated with sensors that measure relative humidity/temperature, barometric pressure/temperature, illumination, acceleration on axis x and y and especially the 420 platform can integrate a GPS module. Our goal is the development of a Graphical User Interface (GUI) through which we can plot the data that the sensors would send. The development of GUI made with Matlab. For this purpose, it was necessary the connection of a mote to the computer, that would behave like an intermediate receiver and would forward the data packets to the computer through the serial port. The MIB520 board was used for this purpose. For the data projection and saving to the computer, the xlisten interface was used.

Die vorliegende Arbeit hat die Entwicklung und Umsetzung einer graphischen Benutzeroberfläche zur Erprobung von Wechselwirkungen zwischen verschiedenen Prozessparametern beim Tiefziehen von faserbasierten Materialien, wie Papier und Karton, zum Ziel. Nach einer Recherche zum Prozess des Tiefziehens und seiner Modellierung folgt das Erarbeiten von Grundsätzen bei der Erstellung und Gestaltung von graphischen Benutzerschnittstellen. Insbesondere steht dabei die Art der Eingabe von numerischen Parametern und die Visualisierung von Informationen im Vordergrund. Bei der Erstellung des Layouts des Graphical User Interface (GUI) werden die aus der Recherche gewonnenen Erkenntnisse genutzt. Dazu werden alle Anforderungen, die an die Benutzerschnittstelle gestellt werden können, zusammengetragen. Bekannte Annahmen zur Modellierung des Tiefziehprozesses werden aus Vorarbeiten verwendet. So wird innerhalb des Programmcodes der GUI der Stempelkraftverlauf beim Tiefziehen mit seinen charakteristischen Kennwerten erzeugt. Diese Kennwerte werden in einer ausgewählten Darstellungsform auf der Oberfläche für den Nutzer anschaulich präsentiert. Ein Vergleich mit den charakteristischen Werten einer Referenz in der Darstellung erlaubt eine Aussage über die Qualität des zu produzierenden Ziehformteiles. Nach der Implementierung der GUI werden abschließend Potentiale für weiterführende Arbeiten offengelegt. / The aim of this thesis is the development and implementation of a GUI for testing interactions between different process parameters in the deep drawing of fibre based materials such as paper and cardboard. After an investigation of the process of deep drawing and its modelling, the elaboration of principles of the creation and the design of the GUI follows. The main focus concentrates in particular on the type of input of numerical parameters and the visualization of information. Based on the findings from the research, the layout of the GUI is created. To this end, all requirements that can be posed on the user interface are combined. Known assumptions for the modelling of the deep drawing process are used from reliminary work. Thus, within the program code of the interface, the punch force profile during deep drawing is generated with its characteristic values. These characteristic values are displayed in a selected presentation form on the user's surface. A comparison with the characteristic values of a reference in the presentation allows a statement about the quality of the drawing part to be produced. After the implementation of the GUI the potentials for further development are finally disclosed.

This thesis investigates the possibility of detecting weak vital signs, such as heartbeat and respiration rate, through the implementation of quadrature demodulation and frequency spectrum algorithms on a high performance digital signal processor. This thesis has been part of an ongoing research project at Linkoping University, with the aim to develop a sensor platform for wireless measurements of these vital signs. This sensor platform has been expected to consist of two major physical devices, a RF-radar front-end including a quadrature multi-port and a processing back-end which holds the implementation of the algorithms to detect the vital signs. The back-end consists of a data acquisition- and a processing-part which together forms the digital signal processor. The results show that the implemented algorithms works in terms of being able to find artificial vital signs from quadrature signals. This result also confirms that the hardware solution proposed during this thesis, has been considered as viable for the aim of the project.