Keyboard and Screen Reader Accessibility in Complex Interactive Science Simulations: Design Challenges and Elegant Solutions

2018 ◽  
pp. 385-400 ◽  
Author(s):  
Emily B. Moore ◽  
Taliesin L. Smith ◽  
Jesse Greenberg
Keyword(s):  
Screen Reader ◽  
Design Challenges

Methods & Strategies: Improving the Quality of Engineering Design Challenges

2019 ◽  
Vol 056 (06) ◽  
Author(s):  
Matthew Perkins Coppola ◽  
Alice Merz
Keyword(s):  
Engineering Design ◽  
Design Challenges

Recent developments in vertical cooling crystalliser design

2011 ◽  
pp. 726-733
Author(s):  
Michael Getaz ◽  
Rob Sanders
Keyword(s):  
Motor Drive ◽  
Steady Increase ◽  
Unit Size ◽  
Heat Transfer Characteristics ◽  
Heat Exchange Surface ◽  
Recent Developments ◽  
Cooling Tube ◽  
Good Heat ◽  
Exchange Surface ◽  
Design Challenges

In modern installations vertical cooling crystallisers are now preferred over traditional horizontal units because of the significant benefits they offer, which include larger volumes and smaller floor space, suitability for outdoor installation, higher cooling surface to volume ratios and a better ability to handle highly viscous massecuite, amongst others. Since the first vertical cooling crystallisers were introduced, nearly 40 years ago, there has been a steady increase in their unit size from initial volumes in the 50–200 m3 range up to the present day where the most general unit size is now in the 300–400 m3 range, with even larger units becoming increasingly common. Large crystallisers present some significant design challenges and a good modern vertical cooling crystalliser design requires a robust construction of heat exchange surface, stirrer and drive units coupled with features that promote good heat transfer characteristics and uniform massecuite flow patterns. Careful attention to cooling tube and stirrer arm design and configuration are needed to achieve this, whilst the use of modern planetary gearboxes and variable frequency controlled motor drive units can provide added benefits to boost both performance and reliability. How these design features are incorporated in a modern unit is explained, focusing on cane C massecuite duty and using the Fives Cail and Fives Fletcher units as an example.

scholarly journals Image Accessibility for Screen Reader Users: A Systematic Review and a Road Map

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 953
Author(s):  
Uran Oh ◽  
Hwayeon Joh ◽  
YunJung Lee
Keyword(s):  
Systematic Review ◽  
Visual Information ◽  
Assistive Technologies ◽  
Input Device ◽  
Screen Reader ◽  
Related Information ◽  
Road Map ◽  
Holistic Understanding ◽  
Feedback Modalities ◽  
Image Accessibility

A number of studies have been conducted to improve the accessibility of images using touchscreen devices for screen reader users. In this study, we conducted a systematic review of 33 papers to get a holistic understanding of existing approaches and to suggest a research road map given identified gaps. As a result, we identified types of images, visual information, input device and feedback modalities that were studied for improving image accessibility using touchscreen devices. Findings also revealed that there is little study how the generation of image-related information can be automated. Moreover, we confirmed that the involvement of screen reader users is mostly limited to evaluations, while input from target users during the design process is particularly important for the development of assistive technologies. Then we introduce two of our recent studies on the accessibility of artwork and comics, AccessArt and AccessComics, respectively. Based on the identified key challenges, we suggest a research agenda for improving image accessibility for screen reader users.

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