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Related Concept Videos

Speed of Sound in Gases01:08

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The speed of sound in a gaseous medium depends on various factors. Since gases constitute molecules that are free to move, they are highly compressible. Hence, sound waves travel slowly through gases. Thermodynamics helps us understand the relationship between pressure, volume, and temperature of gases, thus, the speed of sound in an ideal gas can be determined using the laws of thermodynamics. At the same time, Newton's laws of motion and the continuity equation of fluid dynamics also come...
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As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
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Speed-Dial: A Surrogate Mouse for Non-Visual Web Browsing.

Syed Masum Billah1, Vikas Ashok1, Donald E Porter2

  • 1Department of Computer Science, Stony Brook University, NY, USA.

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|July 21, 2018
PubMed
Summary
This summary is machine-generated.

The Speed-Dial system offers a physical dial for non-visual web browsing, improving accessibility for people with vision impairments. This innovative approach provides faster navigation and content selection, mimicking mouse interactions.

Keywords:
Microsoft Surface DialSemantic web browsingscreen readertactile explorationtactile interactionvisual impairment

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Area of Science:

  • Human-Computer Interaction
  • Web Accessibility
  • Assistive Technology

Background:

  • Sighted users navigate the web using mice for intuitive point-and-click interactions.
  • Visually impaired users face challenges with mouse-based navigation due to reliance on visual feedback.
  • Current methods for blind users involve screen readers, leading to cognitive overload and slow navigation.

Purpose of the Study:

  • To introduce the Speed-Dial system, a novel approach for non-visual web browsing.
  • To enable visually impaired users to interact with web content more efficiently and intuitively.
  • To bridge the gap between sighted and visually impaired web browsing experiences.

Main Methods:

  • Developed Speed-Dial, integrating an off-the-shelf physical dial with a web page's semantic model.
  • Designed the system to provide rapid access to web page entities and their content.
  • Conducted a user study with blind participants to evaluate the system's effectiveness.

Main Results:

  • Participants using Speed-Dial demonstrated quick navigation around web pages.
  • The system facilitated efficient selection of desired content.
  • User feedback indicated an experience akin to mouse-based pointing and clicking.

Conclusions:

  • Speed-Dial effectively serves as a mouse surrogate for non-visual web browsing.
  • The system significantly enhances the browsing experience for individuals with vision impairments.
  • This technology brings non-visual web interaction closer to the efficiency of sighted users.