Browsing by Author "Li, J."

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    Designing the Car iWindow: Exploring Interaction through Vehicle Side Windows
    (ACM, 2013) Li, J.; Sharlin, E.; Greenberg, S.; Rounding, M.
    Interactive vehicle windows can enrich the commuting experience by being informative and engaging, strengthening the connection between passengers and the outside world. We propose a preliminary interaction paradigm to allow rich and un-distracting interaction experience on vehicle side windows. Following this paradigm we present a prototype, the Car iWindow, and discuss our preliminary design critique of the interaction, based on the installation of the iWindow in a car and interaction with it while commuting around our campus.
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    Interactive Two-Sided Transparent Displays: Designing for Collaboration
    (ACM, 2014) Li, J.; Greenberg, S.; Sharlin, E.; Jorge, J.
    Transparent displays can serve as an important collaborative medium supporting face-to-face interactions over a shared visual work surface. Such displays enhance workspace awareness: when a person is working on one side of a transparent display, the person on the other side can see the other's body, hand gestures, gaze and what he or she is actually manipulating on the shared screen. Even so, we argue that designing such transparent displays must go beyond current offerings if it is to support collaboration. First, both sides of the display must accept interactive input, preferably by at least touch and / or pen, as that affords the ability for either person to directly interact with the workspace items. Second, and more controversially, both sides of the display must be able to present different content, albeit selectively. Third (and related to the second point), because screen contents and lighting can partially obscure what can be seen through the surface, the display should visually enhance the actions of the person on the other side to better support workspace awareness. We describe our prototype FACINGBOARD-2 system, where we concentrate on how its design supports these three collaborative requirements.
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    Stabilized finite element methods for a blood flow model of arterosclerosis
    (Numerical Methods for Partial Differential Equations, 2015-09-21) Chen, Zhangxing (John); Jing, F.; Li, J.
    In this article, a blood flow model of arteriosclerosis, which is governed by the incompressible Navier–Stokes equations with nonlinear slip boundary conditions, is constructed and analyzed. By means of suitable numerical integration approximation for the nonlinear boundary term in this model, a discrete variational inequality for the model based on math formula stabilized finite elements is proposed. Optimal order error estimates are obtained. Finally, numerical examples are shown to demonstrate the validity of the theoretical analysis and the efficiency of the presented methods.