(Georgia Institute of Technology, 2010-06)
Kong, Linghua; Sprigle, Stephen; Davis, Kim; Wang, Chao
The alleviation pressure (AP) cushion is a dynamic
cushion system with
three bladders at the pelvic region. The bladders can be
deflated and inflated
in a certain sequence to relieve the pressure on the
ischial tuberosiites (IT) and coccyx/sacrum. The
design of the foam
base, bladder and
pneumatic and electronic system
of the AP cushion
is discussed in this
paper. And testing
is conducted to verify
the effectiveness of
the AP cushion.
(Georgia Institute of Technology, 2010)
Sprigle, Stephen; Maurer, Chris; Kong, Linghua
Inventors of assistive technology
often lack resources to support
product development and this may
hinder their ability to develop useful and commercially viable devices. The purpose of this on‐going project is to support inventor and small company development of promising mobility-‐related technologies. Specifically, the process includes: 1) an informal brainstorming session
addressing technical, market and user issues; 2) formal screening of device potential and RERC capacity to assist in development; 3) invitation to engage inventors/companies with promising technologies; and 4) product testing and/or development of promising technologies. This paper describes
the project’s approach and reviews
activities over the past year.
(Georgia Institute of Technology, 2008)
Duckworth, Mark G.; Caspall, Jayme J.; Mappus IV, Rudolph L.; Kong, Linghua; Yi, Dingrong; Sprigle, Stephen
During investigations of potential child and elder abuse, clinicians and forensic practitioners are often
asked to offer opinions about the age of a bruise. A commonality between existing methods of bruise aging
is analysis of bruise color or estimation of chromophore concentration. Relative chromophore concentration
is an underlying factor that determines bruise color. We investigate a method of chromophore concentration
estimation that can be employed in a handheld imaging spectrometer with a small number of wavelengths.
The method, based on absorbance properties defined by Beer-Lambert's law, allows estimation of
differential chromophore concentration between bruised and normal skin. Absorption coefficient data for
each chromophore are required to make the estimation. Two different sources of this data are used in the
analysis- generated using Independent Component Analysis and taken from published values. Differential
concentration values over time, generated using both sources, show correlation to published models of
bruise color change over time and total chromophore concentration over time.