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  • Creator(s):
    Marc Muller, Jaynise Perez-Valentin
    Description:

    This dataset accompanies the Manuscript “Impact of Hurricane Maria on beach erosion in Puerto Rico: remote sensing and causal inference” by Jaynise Perez-Valentin and Marc F. Muller, November 2019.

    beachesGIS is a zip archive that contains GIS vectors of 75 beach polygons across Puerto Rico. The vectors are provided in ESRI Shapefile format and LatLong coordinate system and have an attribute table with a beach name.

    TimeSeries is a csv table containing time series of shoreline pos…

    Date Created:
    2019-11-06
  • Author(s):
    Ankit Agrawal, Seyedehzahra Khoshmanesh, Michael Vierhauser, Mona Rahimi, Jane Cleland-Huang, Robyn Lutz
    Abstract:

    Safety Assurance Cases (SACs) are increasingly used to guide and evaluate the safety of software-intensive systems. They are used to construct a hierarchically organized set of claims, arguments, and evidence in order to provide a structured argument that a system is safe for use. However, as the system evolves and grows in size, a SAC can be difficult to maintain. In this paper we utilize design science to develop a novel solution for identifying areas of a SAC that are affected by changes t…

    Date Published:
    2019-05
  • Author(s):
    Rick Rabiser, Klaus Schmid, Holger Eichelberger, Michael Vierhauser, Sam Guinea, Paul Gruenbacher
    Abstract:

    [Context] Complex and heterogeneous software systems need to be monitored as their full behavior often only emerges at runtime, e.g., when interacting with other systems or the environment. Software monitoring approaches observe and check properties or quality attributes of software systems during operation. Such approaches have been developed in diverse communities for various kinds of systems and purposes. For instance, requirements monitoring aims to check at runtime whether a software…

  • Author(s):
    Michael Vierhauser, Sean Beyley, Jane Wyngaard, Wandi Xiong, Joshua Huseman, Robyn Lutz, Jane Cleland-Huang
    Abstract:

    The growing adoption of unmanned aerial vehicles (UAV) for tasks such as eCommerce, aerial surveillance, and environmental monitoring introduces the need for new safety mechanisms in an increasingly cluttered airspace. In our work we thus emphasize safety issues that emerge at the intersection of infrastructures responsible for controlling the airspace, and the diverse UAVs operating in their space. We build on safety assurance cases (SAC)- a state-of-the-art solution for reasoning about safe…

  • Author(s):
    Norbert Seyff, Michael Vierhauser, Michael Schneider, Jane Cleland-Huang
    Abstract:

    [Context and motivation] With the rise of cyber-physical systems (CPS), smart ecosystems, and the Internet of Things (IoT), software-intensive systems have become pervasive in everyone’s daily life. The shift from software systems to ubiquitous adaptive software-intensive systems not only affects the way we use software but further has an impact on the way these systems are designed and developed. Gathering requirements for such systems can benefit from elicitation processes that are conducte…

  • Creator(s):
    David H Richter, Anne E Dempsey
    Description:

    Data for the reproduction of figures found in the paper Turbulent transport of spray droplets in the vicinity of moving surface waves written by David Richter et al.

    Included in this data set is: Spray Droplet Concentration, normalized velocity, and surf. Joint probability distributions of the droplet ejection location with (a) the droplet death location, (b) the maximum height reached by the droplet during its lifetime, and © the droplet lifetime for Cases d10 and d100.

    Date Created:
    2019-03-29
  • Creator(s):
    Kenneth Christensen, Nathaniel R. Bristow
    Date Created:
    2019-03-19
  • Creator(s):
    Tianze Peng, David Richter
    Description:

    Essential data for “Sea Spray and Its Feedback Effects: Assessing Bulk Algorithms of Air-Sea Heat Fluxes via Direct Numerical Simulations” published in Journal of Physical Oceanography. DOI:10.1175/JPO-D-18-0193.1

    File 1: Flux_Data.pdf Horizontal and temporal mean of heat fluxes at the bottom surface for all cases in the paper

    File 2: Joint_PDF.zip Raw data for spray statistics (temperature and radius change vs. residence time)

    Date Created:
    2019-03-15
  • Author(s):
    Jane Cleland-Huang, Michael Vierhauser
    Abstract:

    Traditionally, safety-critical projects have been developed using the waterfall process. However, this makes it costly and challenging to incrementally introduce new features and to certify the modified product for use. As a result, there has been increasing interest in adopting agile development paradigms within the safety-critical domain. This in turn introduces numerous challenges. In this paper we address the specific problems of discovering, analyzing, specifying, and managing safety req…

    Date Published:
    2018-08
  • Author(s):
    Yide Zhang, Scott S. Howard, Cody J. Smith
    Abstract:

    Super-resolution microscopy is broadening our in-depth understanding of cellular structure. However, super-resolution approaches are limited, for numerous reasons, from utilization in longer-term intravital imaging. We devised a combinatorial imaging technique that combines deconvolution with stepwise optical saturation microscopy (DeSOS) to circumvent this issue and image cells in their native physiological environment. Other than a traditional confocal or two-photon microscope, this approac…

    Date Created:
    2019-01-09
    Resource Type
    Software
  • Author(s):
    Michael Vierhauser, Jane Cleland-Huang, Rick Rabiser, Thomas Krismayer, Paul Grünbacher
    Abstract:

    Industrial software systems are often systems of systems~(SoS) whose full behavior only emerges during operation. They therefore require monitoring techniques to observe systems and detect deviations from their requirements. The focus of existing monitoring approaches, however, is mainly on detecting violations of expected behavior, while support for diagnosing violations is typically limited or even neglected. Diagnosis is particularly challenging in SoS due to their technological heterogene…

    Date Published:
    2018-08
  • Author(s):
    Kyle Sweeney, Douglas Thain
    Abstract:

    Scientists using workflows often have access to both High Performance Computing and High-Throughput Computing sites, but HPC sites’ architecture is less conducive to HTC paradigms. The choices of middleware and site can have drastic performance differences on different workflows. To explore these differences, we created tools to expand Makeflow and Work Queue’s capabilities. We then performed four speed of light tests, testing job dispatch rate, data delivery from the master to worker…