Maintenance Informatics Dashboard Design for Through-life Engineering Services

This article introduces maintenance informatics dashboard design approach for visualising maintenance, repair and overhaul events on a timeline. This paper presents a proposed methodology for aggregate visualisation techniques and a 2D graphical plot method as well as a summary of events on a timeline. In this paper, these events are occurrences which are classified and categorised into levels. The occurrences are accumulated over time as historical information and represented in a visual format over a timeline based on an entity relationship diagram. The information modelling technique with respect to data visualisation is emphasised. The result is a single-page-view of maintenance activities. The maintenance activities of aircraft engines are visualised to ease the accessibility of getting accurate and relevant information for making better maintenance decision. The result can be used to gain insight of the root cause of the events from inception to end of life of the engine

10241 Executive Summary -- Information Visualization

Information Visualization (InfoVis) focuses on the use of visualization techniques to help people understand and analyze data. While related fields such as Scientific Visualization involve the presentation of data that has some physical or geometric correspondence, Information Visualization centers on abstract information without such correspondences. The aim of this seminar was to bring together theoreticians and practitioners from the field with a special focus on the intersection of InfoVis and Human-Computer Interaction. To support discussions that are related to the visualization of real world data, researchers from selected application areas also attended and contributed. During the seminar, working groups on eight different topics were formed and enabled a critical reflection on ongoing research efforts, the state of the field, and key research challenges today

10241 Abstracts Collection -- Information Visualization

From 13.06.10 to 18.06.10, the Dagstuhl Seminar 10241 ``Information Visualization \u27\u27 was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available

Active progress bars : facilitating the switch to temporary activities

International audienceIn this paper, we seek to find a better way of effective task management when a progress bar interrupts user's primary activity. We propose to augment progress bars with user controlled functionalities facilitating the switch to temporary activities. We detail a taxonomy of waiting period contexts and possible temporary tasks, then report on 5 participatory design, and a follow-up survey of 96 respondents. Finally we describe an early prototype of active progress bars, and report on initial use

Guide to Opportunities in Volunteer Archaeology Case study of the use of a hypertext system in a museum exhibit

This case study shows how a hypertext system was used in a traveling exhibit of the Smithsonian Institution. The database about archaeology was constructed by a professor and students of the history department of the University of Maryland. Regular updates of the database were made for each new venue of the exhibit. Finally the database was translated into French and automatically rebuilt to be used in Canada. Helpful features of the hypertext system as well as the difficulties encountered are described. System users were observed in the museum and collected usage data was analyzed. (Also cross-referenced as CAR-TR-523

Analyse numérique du comportement sismique d'un barrage en enrochement avec un noyau en béton bitumineux

RÉSUMÉ Depuis un demi-siècle, un nouveau type de barrage est développé. Sa nouveauté réside en l’utilisation d’un noyau en béton bitumineux (d’une largeur d’environ 1 m) supporté par un matériau granulaire compacté, puis de l’enrochement, au lieu d’utiliser un matériau imperméable classique tel que l’argile. On compte 90 barrages de ce type, que l’on appelle barrage en enrochement avec un noyau en noyau bitumineux (en anglais « asphalt core rockfill dam », donc ACRD), qui sont déjà en opération et 45 qui sont actuellement en train d’être conçus ou construits. Le mince noyau en béton bitumineux est complètement imperméable, flexible et capable de refermer des fissures qui surviendraient, jusqu’à une certaine limite, donnant, de manière globale, au barrage un comportement satisfaisant durant sa construction, pendant le remplissage du réservoir et durant un tremblement de terre. De plus, le noyau en béton bitumineux permet de continuer les opérations de construction même durant de mauvaises conditions climatiques telles que la pluie, mais aussi de construire un barrage à des endroits où le matériau imperméable se trouve dans des quantités, ou en qualités, insuffisantes. La plus part des ACRD se trouvent en Europe et en Chine où ils sont populaires. Seulement un de ces barrages a été construit en Amérique du Sud et deux en Amérique du Nord. Le but principal de ce travail est de présenter l’évaluation du comportement sismique d’un ACRD représentatif basée sur l’analyse numérique dynamique en utilisant un modèle hyperbolique basé sur le modèle Duncan et Chang (1970) pour modéliser le comportement des matériaux granulaires et l’enrochement, et en prenant en compte l’amortissement hystérétique. Les analyses ont été réalisées à l’aide du logiciel PLAXIS 2D 2011.02 et prennent en considération les effets induits par le remplissage du réservoir. L’analyse sismique se base sur des tremblements de terre typiques et extrêmes des côtes est et ouest du continent nord-américain. Une attention particulière a été portée sur les déformations subies par le noyau. Les résultats de cette analyse ont été comparés aux résultats trouvés par la méthode pseudostatique et par la méthode des déplacements permanents.----------ABSTRACT Since half a century, a new kind of dam has been developed. This new type of dam uses a thin core asphalt concrete (about 1 m thick) instead of a traditional low-permeable material, such as clay, supported by compacted granular materials and then rockfill. These dams are called asphalt core rockfill dams (ACRD). There are currently 90 ACRD’s in operation around the world and nearly 45 of these dams are being designed or are under construction. The thin asphalt concrete core is completely impermeable, flexible and capable of self-healing if fissured (to a certain degree). Thanks to these characteristics, the general comportment of an ACRD during its construction, reservoir filling and seismic loading is quite satisfactory. In addition, it allows for the construction of the dam under poor climatic conditions, such as rain, and in an area where the quality or the quantity of impervious materials are limited. Most of ACRDs can be found in Europe and in China. There is only one ACRD in South America and two in North America. The main goal of this study it is to evaluate the seismic performance of a representative ACRD by means of dynamic numerical analysis using a hyperbolic stress-strain model based on Duncan and Chang (1970) for simulate the granular and rockfill materials and takes into consideration hysteretic damping and shear modulus reduction during the dynamic analysis. The analysis was conducted using PLAXIS 2011.02 2D and considered the effect of reservoir filling and dynamic loading based on typical and extreme earthquakes on the east and west coasts of North America. Special attention was given to the deformation of the asphaltic core. This analysis was compared to the results of traditional seismic analysis as the pseudostatic method and the permanent displacements method

1992 Human-Computer Interaction Laboratory Video Reports

Introduction - Ben Shneiderman, [3:00], Dynamic Queries: database searching by direct manipulation - Ben Shneiderman, Chris Williamson, Christopher Ahlberg, [10:55], Treemaps for visualizing hierarchical information - Ben Shneiderman, Brian Johnson, Dave Turo, [11:25], Three strategies for directory browsing - Rick Chimera, [10:30], Filter-Flow metaphor for boolean queries - Degi Young, Ben Shneiderman, [6:35], The AT&T Teaching Theater: active learning through computer supported collaborative courseware - Kent Norman, [8:25], ACCESS: an online public access catalog at the Library of Congress - Gary Marchionini, [8:15] Remote Direct Manipulation: a telepathology workstation - Catherine Plaisant, Dave Carr, [7:30], Guiding automation with pixels: a technique for programming in the user interface - Richard Potter, [11:50] (Also cross-referenced as CAR-TR-792