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Now showing items 81-89 of 89
Experiences, challenges and lessons from rolling out a rural WiFi mesh network
(ACM, 2013)
The DEV community knows that technology interventions involve consideration of social and environmental factors as much as technical ones. This is particularly true for the introduction of communications infrastructure in ...
Browser-based sign language communication
(Telkom, 2010)
This paper describes the design and evaluation of two browser-based video communication prototypes that support sign language communication between Deaf people. The research explores combinations of technologies, protocols ...
Digital watermarking: a state-of-the-art review
(IIMC International Information Management Corporation, 2010)
Digital watermarking is the art of embedding data, called a
watermark, into a multimedia object such that the watermark can be detected or
extracted later without impairing the object. Concealment of secret messages inside ...
A mobile Deaf-to-hearing communication aid for medical diagnosis
(Telkom, 2010)
This paper describes how a deaf to hearing communication aid built for a mobile phone can be used to provide semi-synchronous communication between a Deaf person and a hearing person who cannot sign. Deaf people with access ...
Towards ensuring scalability, interoperability and efficient access control in a multi-domain grid-based environment
(South African Institute of Electrical Engineers, 2013)
The application of grid computing has been hampered by three basic challenges:
scalability, interoperability and efficient access control which need to be optimized before a full-scale
adoption of grid computing can take ...
Please call ME.N.U.4EVER: designing for “Callback” in rural Africa
(Product & Systems Internationalisation, Inc, 2011)
Designers and developers are naïve about the ways impoverished people in rural Africa innovate new uses of mobile technology to circumvent access difficulties. Here, we report on the local appropriation of an USSD ‘Callback’ ...
Ensuring the security and privacy of information in mobile health-care communication systems
(Academy of Science of South Africa, 2011)
The sensitivity of health-care information and its accessibility via the Internet and mobile technology systems is a cause for concern in these modern times. The privacy, integrity and confidentiality of a patient’s data ...
ANCAEE: A novel clustering algorithm for energy efficiency in wireless sensor networks
(Scientific Research Publishing, 2011)
One of the major constraints of wireless sensor networks is limited energy available to sensor nodes because of the small size of the batteries they use as source of power. Clustering is one of the routing techniques that ...
Deaf telephony: community-based co-design (case study)
(Wiley, 2011)
The process of community-based co-design is one that explores various solution configurations in a multi-dimensional design space whose axes are the different dimensions of requirements and the various dimensions of designer ...