Now showing items 21-40 of 14054

    • Pavement alters delivery of sediment and fallout radionuclides to urban streams 

      Gellis, Allen C.; Fuller, Christopher C.; Van Metre, Peter C.; Mahler, Barbara J.; Welty, Claire; Miller, Andrew J.; Nibert, Lucas A.; Clifton, Zach J.; Malen, Jeremy J.; Kemper, John T. (Elsevier, 2020-03-16)
      Sediment from urban impervious surfaces has the potential to be an important vector for contaminants, particularly where stormwater culverts and other buried channels draining large impervious areas exit from underground ...
    • A grid-based extension to an assistive multimodal interface 

      Strain, Philip; McAllister, Graham; Murphy, Emma; Kuber, Ravi; Yu, Wai (Association for Computing Machinery, 2007-04)
      This paper describes an extension to a multimodal system designed to improve Internet accessibility for the visually impaired. Here we discuss the novel application of a grid (patent pending) to our assistive web interface. ...
    • Towards developing assistive haptic feedback for visually impaired internet users 

      Kuber, Ravi; Yu, Wai; McAllister, Graham (Association for Computing Machinery, 2007-04)
      Haptic technologies are thought to have the potential to help blind individuals overcome the challenges experienced when accessing the Web. This paper proposes a structured participatory-based approach for developing ...
    • A Non-visual Approach to Improving Collaboration Between Blind and Sighted Internet Users 

      Kuber, Ravi; Yu, Wai; McAllister, Graham (Springer, Berlin, Heidelberg, 2007)
      Assistive technologies have widened access to the Web, by providing a non-visual representation of page content for blind individuals. However, restrictions imposed by screen readers and Braille output devices have led to ...
    • Towards identifying distinguishable tactons for use with mobile devices 

      Qian, Huimin; Kuber, Ravi; Sears, Andrew (Association for Computing Machinery, 2009-10)
      This paper describes a study designed to identify salient tactile cues which can be integrated with a cellular telephone interface, to provide non-visual feedback to users when accessing mobile applications. A set of tactile ...
    • Maintaining levels of activity using a haptic personal training application 

      Qian, Huimin; Kuber, Ravi; Sears, Andrew (Association for Computing Machinery, 2010-04)
      This paper describes the development of a novel mobile phone-based application designed to monitor the walking habits of older adults. Haptic cues integrated within the prototype, are designed to inform an individual of ...
    • Tactile vs Graphical Authentication 

      Kuber, Ravi; Yu, Wai (Springer, Berlin, Heidelberg, 2010)
      This paper describes a novel approach to authenticate entry to a system using tactile feedback. The user is required to remember a sequence of pre-selected pin patterns. A study has been undertaken to determine the feasibility ...
    • Tactile Web Browsing for Blind Users 

      Kuber, Ravi; Yu, Wai; Sile O’Modhrain, M. (Springer, Berlin, Heidelberg, 2010)
      Recent developments in tactile technologies have made them an attractive choice to improve access to non-visual interfaces. This paper describes the design and evaluation of an extension to an existing browser, which enables ...
    • Toward tactile authentication for blind users 

      Kuber, Ravi; Sharma, Shiva (Association for Computing Machinery, 2010-10)
      This paper describes the design of an accessible authentication mechanism. The Tactile Authentication System has been adapted to enable individuals who are blind to access electronic data using their sense of touch. To ...
    • A Longitudinal Pilot Study to Evaluate Non-Visual Icons in a Mobile Exertion Application 

      Qian, Huimin; Kuber, Ravi; Sears, Andrew (Springer, Berlin, Heidelberg, 2011)
      This paper describes an evaluation of a mobile exertion application, developed to promote physical activity among adult users. To extend previous work, we aimed to identify changes in walking behavior over time, and to ...
    • Developing an Interface to Support Procedural Memory Training using a Participatory–Based Approach 

      Carrington, Patrick; Kuber, Ravi; Anthony, Lisa; Hurst, Amy G.; Prasad, Sapna (Science Open, 2012-09-12)
      For some individuals with executive function deficits, difficulties may be experienced when executing step-by-step procedures involving cognitive and motor skills. In this paper, we describe the design of a mobile application ...
    • Toward the Development of a BCI and Gestural Interface to Support Individuals with Physical Disabilities 

      Krishnaswamy, Kavita; Kuber, Ravi (Association for Computing Machinery, 2012-10)
      In this paper, we describe a first step towards the development of a solution to support the movement and repositioning of an individual's limbs. Limb repositioning is particularly valuable for individuals with physical ...
    • Developing and Evaluating a Non-Visual Memory Game 

      Kuber, Ravi; Tretter, Matthew; Murphy, Emma (Springer, Berlin, Heidelberg, 2011)
      This paper describes the development of a non-visual memory game based on the classic game ‘SimonTM′, where users are presented with a sequence of stimuli, which they need to replicate in the same order to progress to the ...
    • A Participatory Design Workshop on Accessible Apps and Games with Students with Learning Differences 

      Anthony, Lisa; Prasad, Sapna; Hurst, Amy; Kuber, Ravi (2011)
    • Mercantile Racism: Labor, Currency, Economics, and Race in Maryland and Sénégal 

      Toure, Awa L. (2020-05-17)
      This international study critically examined if and how the implicit theories of value in both labor and currency generate policy practices and outcomes that directly or indirectly perpetuate labor or economic slavery of ...
    • AUDIO FOR A MULTIMODAL ASSISTIVE INTERFACE 

      Murphy, Emma; McAllister, Graham; Strain, Philip; Kuber, Ravi; Yu, Wai (2005-07)
    • Assistive Multimodal Interfaces for Improving Web Accessibility 

      Kuber, Ravi; Yu, Wai; Strain, Philip; Murphy, Emma; McAllister, Graham
      Multimodal interfaces have been used in helping blind and partially sighted people to access visualization tools such as graphs and numerical tables. However, few studies have been undertaken to improve Web access and ...
    • Tactile notifications for ambulatory users 

      Qian, Huimin; Kuber, Ravi; Sears, Andrew (Association for Computing Machinery, 2013-04)
      Difficulties are often associated with perceiving tactile feedback from a mobile device while ambulatory. In this paper, we describe a study conducted using multi-parameter tactile icons (tactons) with a view to identifying ...
    • Supporting augmented and alternative communication using a low-cost gestural device 

      Wheeler, Matt; Wolf, Flynn; Kuber, Ravi (Association for Computing Machinery, 2013-10)
      In this paper, we describe an exploratory study to determine the feasibility of using a low-cost gestural headset to support communication. Findings have shown tasks involving facial gestures, such as blinks and smiles, ...
    • Developing tactile icons to support mobile users with situationally-induced impairments and disabilities 

      Qian, Huimin; Kuber, Ravi; Sears, Andrew (Association for Computing Machinery, 2013-10)
      Although it is well known that interaction with a mobile device can be impacted when the environment is inhospitable or when the user is on the move, situationally-induced impairments and disabilities (SIIDs) are often ...