5 research outputs found
Beyond digitization: access and preservation
This paper is a desk study that examines issues around and beyond digitization within the context of Nigeria. The paper focuses on access and preservation as some of the main objectives of digitization. It indentifies Institutional Repositories (IR) as panacea to achieving these aims. The enabling technologies and challenges for the deployment of IR are also discussed. The need for the libraries to form a consortium to share cost of infrastructures and ICT skilled personnel for the successful deployment of IR is recommended
Capacity Building For Library and Information Centre Personnel In ICT Environment
The paper examined the concepts âICT environmentâ and âdigitized/virtual library and information centreâ and discussed the features of digitized/virtual library and information centre and the need for capacity building especially in ICT-based libraries and information centres. It highlights the skills, competencies and training needs expected of personnel in typical digitized libraries and information centres, the avenues for their education and training and the basic questions to address in capacity building plans and strategies. The paper concluded by putting forward strategies to adopt to ensure the available of requisite relevant manpower in virtual libraries and information centres to cope with the changing needs of the time
Ultrasonic study of the gelation of gelatin: phase diagram, hysteresis and kinetics
We map the ultrasonic (8 MHz) speed and attenuation of edible-grade gelatin
in water, exploring the key dependencies on temperature, concentration and
time. The ultrasonic signatures of the sol-gel transition, confirmed by
rheological measurements, and incomplete gel formation at low concentrations,
enable a phase diagram of the system to be constructed. Sensitivity is also
demonstrated to the kinetics of gel formation and melting, and associated
hysteresis effects upon cyclic temperature sweeps. Furthermore, simple acoustic
models of the sol and gel state enable estimation of the speed of sound and
compressibility of gelatin. Our results demonstrate the potential of ultrasonic
measurements to characterise the structure and visco-elasticity of gelatin
hydrogels.Comment: 15 pages, 8 figure