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"Simplizistische Lösungen verbieten sich." Mit diesem Satz forderte der frühere Vorsitzende des Bundestagsauschusses für wirtschaftliche Zusammenarbeit, Prof. Dr. Uwe Holtz, schon vor dreißig Jahren angemessene Lösungen für globale Politik. Gerade auf die Unüberschaubarkeit und Wechselwirkung globaler Herausforderungen darf nicht mit einfachen Rezepten geantwortet werden. Dr. Eckhard Deutscher, Vorsitzender des Entwicklungsausschusses der OECD, und Prof. Dr. Hartmut Ihne, Präsident der Hochschule Bonn-Rhein-Sieg, ehren mit dem von ihnen herausgegebenen Aufsatzband Uwe Holtz als einen wichtigen Vordenker globaler Entwicklungen.
Als Auftaktband der Internationalen Schriftenreihe der Hochschule Bonn-Rhein-Sieg bietet der Sammelband Analysen zu aktuellen Themen in Außen-, Sicherheits-, Umwelt und Entwicklungspolitik. Führende Persönlichkeiten der internationalen Zusammenarbeit, der Entwicklungspolitik und der Entwicklungsforschung kommen darin zu Wort.
This ICB Research Report constitutes the proceedings of the following four workshops which were held on Tuesday, 29th June 2010 as part of the Requirements Engineering: Foundation for Software Quality (REFSQ) conference 2010 at the University of Duisburg-Essen. First Workshop on Creativity in Requirements Engineering (CreaRE). First International Workshop on Product Line Requirements Engineering and Quality (PLREQ). First Workshop on Requirements Prioritization for customer-oriented Software-Development (RePriCo). First Workshop on Requirements Engineering in Small Companies (RESC).
In Mixed Reality (MR) Environments, the user's view is augmented with virtual, artificial objects. To visualize virtual objects, the position and orientation of the user's view or the camera is needed. Tracking of the user's viewpoint is an essential area in MR applications, especially for interaction and navigation. In present systems, the initialization is often complex. For this reason, we introduce a new method for fast initialization of markerless object tracking. This method is based on Speed Up Robust Features and paradoxically on a traditional marker-based library. Most markerless tracking algorithms can be divided into two parts: an offline and an online stage. The focus of this paper is optimization of the offline stage, which is often time-consuming.
In this paper, we present a solution how to test cultural influences on E-Learning in a global context. Based on a metadata approach, we show how specifically cultural influence factors can be determined to transfer and adapt learning environments. We present a method how those influence factors can be validated for both, to improve the dynamical meta-data specification and to be used in the development of (international) E-Learning scenarios.
The development of robot control programs is a complex task. Many robots are different in their electrical and mechanical structure which is also reflected in the software. Specific robot software environments support the program development, but are mainly text-based and usually applied by experts in the field with profound knowledge of the target robot. This paper presents a graphical programming environment which aims to ease the development of robot control programs. In contrast to existing graphical robot programming environments, our approach focuses on the composition of parallel action sequences. The developed environment allows to schedule independent robot actions on parallel execution lines and provides mechanism to avoid side-effects of parallel actions. The developed environment is platform-independent and based on the model-driven paradigm. The feasibility of our approach is shown by the application of the sequencer to a simulated service robot and a robot for educational purpose.
This report presents the implementation and evaluation of a computer vision problem on a Field Programmable Gate Array (FPGA). This work is based upon [5] where the feasibility of application specific image processing algorithms on a FPGA platform have been evaluated by experimental approaches. The results and conclusions of that previous work builds the starting point for the work, described in this report. The project results show considerable improvement of previous implementations in processing performance and precision. Different algorithms for detecting Binary Large OBjects (BLOBs) more precisely have been implemented. In addition, the set of input devices for acquiring image data has been extended by a Charge-Coupled Device (CCD) camera. The main goal of the designed system is to detect BLOBs in continuous video image material and compute their center points.
This work belongs to the MI6 project from the Computer Vision research group of the University of Applied Sciences Bonn-Rhein-Sieg1 . The intent is the invention of a passive tracking device for an immersive environment to improve user interaction and system usability. Therefore the detection of the users position and orientation in relation to the projection surface is required. For a reliable estimation a robust and fast computation of the BLOB's center-points is necessary. This project has covered the development of a BLOB detection system on an Altera DE2 Development and Education Board with a Cyclone II FPGA. It detects binary spatially extended objects in image material and computes their center points. Two different sources have been applied to provide image material for the processing. First, an analog composite video input, which can be attached to any compatible video device. Second, a five megapixel CCD camera, which is attached to the DE2 board. The results are transmitted on the serial interface of the DE2 board to a PC for validation of their ground truth and further processing. The evaluation compares precision and performance gain dependent on the applied computation methods and the input device, which is providing the image material.
Reversible logic synthesis is an emerging research topic with different application areas like low-power CMOS design, quantum- and optical computing. The key motivation behind reversible logic synthesis is the optimization of the heat dissipation problem current architectures show, by reducing it to theoretically zero [2].
The introduction of new steering conceptsSteer-by-Wire (SBW) gives possibility to replace theconventional steering wheel by an alternative userinterface such as a sidestick. In SBW system the sidestickcan be used as user input element instead of a steeringwheel. The implementation of sidestick in the Human-Machine-Interface (HMI) allows combiningthe conventional steering consisting of a steeringwheel, an accelerator and a brake pedal into a singleelement. Also the implementation of the sidestickcreates new, interesting and flexible design optionswhich can be used to transform the driver’s spatialenvironment. This article describes an active sidestickfor a vehicle which has been developed, integrated andtested in accordance of haptic, ergonomic and safetyrelevant requirements. The control strategies used forthe active attenuators of the sidestick have beeninvestigated and optimised using a Simulink model.
Die Debatte um muslimische Einwandernde in Deutschland, die in jüngster Zeit neuen Auftrieb erhalten hat (1), offenbart immer wieder simplifizierende Sichtweisen vom Islam als einer homogenen Religion. Dabei beweist bereits ein Blick auf die vielfältige muslimische Organisationslandschaft in Deutschland: Es gibt nicht den Islam, sondern stattdessen eine Vielzahl unterschiedlicher islamischer Strömungen, welche mitunter in Konkurrenz zu einander stehen und sich mal mehr, mal weniger deutlich voneinander abgrenzen. Diese Vielfalt der MuslimInnen in Deutschland sowie ihr eher geringer Organisationsgrad erschwert die Bildung eines zentralen islamischen Ansprechpartners, der für sich in Anspruch nehmen könnte, für die Mehrheit der MuslimInnen in Deutschland zu sprechen.
In this paper, we describe an approach to academic teaching in computer science using storytelling as a means to investigate to hypermedia and virtual reality topics. Indications are shown that narrative activity within the context of a Hypermedia Novel related to educational content can enhance motivation for self-conducted learning and in parallel lead to an edutainment system of its own. In contrast to existing approaches the Hypermedia Novel environment allows an iterative approach to the narrative content, thereby integrating story authoring and story reception not only in the beginning but at any time. The narrative practice and background research as well as the resulting product can supplement lecture material with comparable success to traditional academic teaching approaches. On top of this there is the added value of soft skill training and a gain of expert knowledge in areas of personal background research.
Schwingungen sind Bestandteil einer jeden Maschine mit beweglichen Teilen, manchmal sind sie unbedeutend, manchmal deutlich merkbar. Die Überwachung von Schwingungen einer Maschine kann dazu dienen, die Maschinenfunktion zu kontrollieren oder auch frühzeitig Verschleißschäden zu erkennen. Stand der Technik ist die Messung von Schwingungen mit präzisen, aber auch kostenintensiven piezoelektrischen Beschleunigungssensoren und aufwändigen Messsystemen. Solche konventionellen Systeme sind für hochpreisige Maschinen und Anlagen, z. B. Windkraftanlagen, einsetzbar, aber nicht für kleine und mittelgroße Maschinen. Hier besteht der Bedarf an wirklichen Low-Cost Messsystemen, die so günstig sind, dass sie permanent in die Maschine integriert sind und permanent die Schwingungen überwachen. Im Forschungsprojekt wurde ein Baukasten aus kommerziell verfügbaren Komponenten entwickelt, mit dem Low-Cost Schwingungsmesssysteme aufgebaut werden können.