7,250 research outputs found
Information Outlook, May 1997
Volume 1, Issue 5https://scholarworks.sjsu.edu/sla_io_1997/1004/thumbnail.jp
Microstructural characterization of a Canadian oil sand
The microstructure of oil sand samples extracted at a depth of 75 m from the
estuarine Middle McMurray formation (Alberta, Canada) has been investigated by
using high resolution 3D X-Ray microtomography (CT) and Cryo Scanning
Electron Microscopy (CryoSEM). CT images evidenced some dense areas
composed of highly angular grains surrounded by fluids that are separated by
larger pores full of gas. 3D Image analysis provided in dense areas porosity
values compatible with in-situ log data and macroscopic laboratory
determinations, showing that they are representative of intact states. CT
hence provided some information on the morphology of the cracks and disturbance
created by gas expansion. The CryoSEM technique, in which the sample is freeze
fractured within the SEM chamber prior to observation, provided pictures in
which the (frozen) bitumen clearly appears between the sand grains. No evidence
of the existence of a thin connate water layer between grains and the bitumen,
frequently mentioned in the literature, has been obtained. Bitumen appears to
strongly adhere to the grains, with some grains completely being coated. The
curved shape of some bitumen menisci suggests a bitumen wet behaviour
Aquaculture and Marine Protected Areas: Exploring Potential Opportunities and Synergies
This new publication, aims at exploring potential opportunities and synergies between aquaculture and conservation. Acknowledging that both aquaculture and MPA may benefit from each other in striving for global sustainable development, here are some of the questions the brochure explores: Under what circumstances can MPAs and aquaculture come together? How could MPAs boost aquaculture growth? How could aquaculture activities provide financial support to MPAs? And how can we minimize negative interactions
Health Phones: A Potential Game Changer in Health Information Management
Health education has to be one of the most effective ways to reduce morbidity and mortality in developing countries. We need to deliver vital messages and information to people at the lower quarter of the society to use changing behaviour and practices which can save and protect their lives. It is in this context, use of mobile phones in delivering vital health information is of significance. This article reviews few projects which successfully use mobile phones for health information delivery
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