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Now showing items 771-780 of 1373
Effect of the structure of Ni nanoparticles on the electrocatalytic activity of Ni@Pd/C for formic acid oxidation
(Elsevier, 2013)
Ni@Pd/C catalysts were synthesized, using Ni/C with different crystalline structures prepared with various ligands. A series of characterizations were performed by transmission electron microscopy, X-ray diffraction, X-ray ...
Montmorillonite modified by CNx supported Pt for methanol oxidation
(Elsevier, 2013)
A composite support based on nature clay, i.e. montmorillonite (MMT), shows great promise as support materials for Pt electrocatalyst for the methanol oxidation reaction in fuel cell anodes. The reported composite support ...
Nitrogen-doped carbon coated ZeO2 as a support to Pt nanoparticles in the oxygen reduction reaction
(Elsevier, 2013)
A new nitrogen-doped carbon (CNx) support for Pt electrocatalysts was prepared by carbonizing polypyrrole on the surface of ZrO2 (ZrO2@CNx) at high temperature. Well-dispersed Pt nanoparticles were easily formed on the ...
Biomass-derived activated carbon as high-performance non-precious electrocatalyst for oxygen reduction
(Royal Society of Chemistry, 2013)
A new type of Fe and N doped carbon material is synthesized by
pyrolyzing ferric chloride doped egg white (EW) and the
proposed synthetic route is easy, green, and low-cost. In addition,
the as-prepared sample exhibits ...
Walking and the social life of solar charging in rural Africa
(Association for Computing Machinery, 2013)
We consider practices that sustain social and physical environments beyond those dominating sustainable HCI discourse. We describe links between walking, sociality, and using resources in a case study of community-based, ...
Challenges of biobanking in South Africa to facilitate indigenous research in an environment burdened with human immunodeficiency virus, tuberculosis, and emerging non-communicable diseases
(Mary Ann Liebert, Inc., 2013)
The high burden of infectious diseases and the growing problem of noncommunicable and metabolic disease syndromes in South Africa (SA) forces a more focused research approach to facilitate cutting-edge scientific growth ...
Blood pressure gradients and cardiovascular risk factors in urban and rural populations in Abia State South Eastern Nigeria using the WHO STEPwise approach
(Public Library of Science, 2013)
Background: Developing countries of sub-Saharan Africa (SSA) face a double burden of non-communicable diseases (NCDs)
and communicable diseases. As high blood pressure (BP) is a common global cardiovascular (CV) disorder ...
Testing foundations of modern cosmology with SKA all-sky surveys
(Proceedings of Science, 2014)
Continuum and HI surveys with the Square Kilometre Array (SKA) will allow us to probe some of
the most fundamental assumptions of modern cosmology, including the Cosmological Principle.
SKA all-sky surveys will map an ...
A query-based SMS translation in information access system
(Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd., 2011)
Mobile technology has contributed to the evolution
of several media of communication such as chats, emails and
short message service (SMS) text. This has significantly
influenced the traditional standard way of expressing ...
A Mobile-Health Information Access System
(Telkom, 2013)
Patients using the Mobile-Health Information System
can send SMS requests to a Frequently Asked Questions
(FAQ) web server with the expectation of receiving an appropriate
feedback on issues that relate to their health. ...