A theoretical basis for using virtual worlds as a personalised process visualisation approach

Communication processes are vital in the lifecycle of BPM projects. With this in mind, much research has been performed into facilitating this key component between stakeholders. Amongst the methods used to support this process are personalized process visualisations. In this paper, we review the development of this visualization trend, then, we propose a theoretical analysis framework based upon communication theory. We use this framework to provide theoretical support to the conjecture that 3D virtual worlds are powerful tools for communicating personalised visualisations of processes within a workplace. Meta requirements are then derived and applied, via 3D virtual world functionalities, to generate example visualisations containing personalized aspects, which we believe enhance the process of communcation between analysts and stakeholders in BPM process (re)design activities

Increased reproducibility of semiautomatic 3D-segmentation over 2D-measurements for quantification of specific iodine uptake of hepatic colorectal metastases in dual-energy CT

With its capability to quantify absolute iodine concentrations, Dual-Energy CT (DECT) promises to add considerable diagnostic information in the field of abdominal oncologic imaging (Agrawal et al., 2014). Iodine maps contain quantifiable information about tumor vascularity and viability and may be used to evaluate treatment response (Apfaltrer et al., 2012; Chen et al., 2014). Hence, reproducible measurements are essential for further treatment decisions. Similar to the measurement of tumor size, the analysis of iodine uptake has hitherto relied on measurements in 2 dimensions (2D) (Zhang et al., 2010). However, recent technological advances enable three-dimensional (3D)-measurements. The aim of this study was to compare interobserver reproducibility of a semiautomatic tool for 3D-segmentation and quantification of iodine uptake in hepatic colorectal metastases with 2D-measurements in DECT.peer-reviewe

Visualization of trends in subscriber attributes of communities on mobile telecommunications networks

Churn, the decision for a subscriber to leave a provider, is frequently of interest in the telecommunications industry. Previous research provides evidence that social influence can be a factor in mobile telecommunications churn. In our work, presented at ASONAM, we presented a system, called ChurnVis, to visualize the evolution of mobile telecommunications churn and subscriber actions over time. First, we infer a social network from call detail records. Then, we compute components based on an overlay of this social network and churn activity. We compute summaries of the attributes associated with the subscribers and finally, we visualize the components in a privacy preserving way. The system is able to present summaries of thousands of churn components in graphs of hundreds of millions of edges. One of the drawbacks of the original approach was that churn components were sometimes very large, leading to over-aggregation in the summary data. In this extension of the ASONAM paper, we adapt the ChurnVis approach to operate on the output of a community finding algorithm and present new results based on this adaptation.Science Foundation Irelan

Novel Ru-Mg-Al-O catalyst derived from hydrotalcite-like compound for NO storage/decomposition/reduction

Ru-Mg-Al hydrotalcite-like anionic clay (Mg/Al/Ru) 90: 29: 1) was successfully prepared with a constant-pH coprecipitation method. Calcination of a hydrotalcite-like precursor at 600 degrees C in the air gave rise to the well-mixed oxide Ru-Mg-Al-O that possesses a good dispersion of Ru species. Ru-Mg-Al-O catalyst after suitable pretreatment exhibits quite high NOx storage capability in the temperature range of 250-400 degrees C, and the highest NOx storage capability of about 220 mu mol g(-1) is obtained at 350 degrees C with flowing 790 ppm NO and 8% O-2 in N-2 stream. Meanwhile, the decomposition of 25-60% NO to N-2 as well as N2O is clearly observed on the catalyst at 300-400 degrees C. In situ diffuse reflectance Fourier transform ( DRIFT) spectra indicate that NOx is adsorbed and stored on a catalyst mainly in the form of various coordinated nitrites/ nitrates. On the basis of the NOx adsorption-desorption profiles as well as the in situ DRIFTS spectra, we have proposed a schematic outline for NOx storage and NO decomposition. Finally, the reduction of stored NOx species on the catalyst by H-2 was carried out at 350 degrees C, indicating that all adsorbed NOx species can be readily reduced by hydrogen

Fortschrittliche Robotersteurerungstechnik. Teilprojekte 1, 2, 3 und 4 Abschlussbericht

The report summarizes the results of four partial projects: (i) integration of robot control in cim systems, (ii) overallstructure and interfaces of robot control systems, (iii) movement control of future robot systems, (iv) interaction interfaces, operation and programming. The cim robot control is provided with MAP 3.0 and comprises the information flow from the instruction up to the movement control including diagnosis. The interaction of computer and robot systems has been manifested by means of a demonstrator. Data transfer and communication technique in the direct robot environment was realized in the solution BITBUS. Improvements in the movement control was achieved by rapid processing of sensor data, enlargement of sensor control funtionality, methods of axial load adaption, improvement of the dynamic properties of axial control circuits, collision-avoiding path planning and improved path accuracy. Solutions are described for central operation as well as for off-line programming of the robot. New sensor-programming tools are used for exact robot programming following the off-line programming. (WEN)Available from TIB Hannover: F97B759 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Entwicklung einer 6-Achsen-Industrierobotersteuerung und Erprobung des gesamten Handhabungssystems

SIGLEDEGerman