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Article
Dispersion and Alignment of Carbon Nanotubes in Polycarbonate
Dispersion and alignment of carbon nanotubes in thermoplastic polymers such as polycarbonate have been studied. Dispersion was accomplished by mixing in a conical twin-screw extruder and alignment was carried ...
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Article
Quantum mechanics and mixed quantum mechanics/molecular mechanics simulations of model nerve agents with acetylcholinesterase
The accurate modeling of biological processes presents major computational difficulties owing to the inherent complexity of the macromolecular systems of interest. Simulations of biochemical reactivity tend t...
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Article
Dispersion and alignment of carbon nanotubes in polycarbonate
Dispersion and alignment of carbon nanotubes in thermoplastic polymers such as polycarbonate have been studied. Dispersion was accomplished by mixing in a conical twin-screw extruder and alignment was carried ...
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Article
Book reviews
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Article
Anonymous review
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Article
Too much secrecy
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Article
Chlorination-grade feedstock from domestic ilmenite
This paper describes laboratory techniques and subsequent results of US Bureau of Mines (USBM) research to produce chlorination-grade feedstock from an abundant, low-grade, domestic, rock ilmenite ore. The res...
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Article
Book reviews
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Article
Antibiotic resistance ofPseudomonas aeruginosa colonizing a urinary catheter in vitro
A modified Robbins Device was used to establish coherent biofilms ofPseudomonas aeruginosa on the surface of catheter material in an artificial urine milieu and the ability of an antibiotic to penetrate the biofi...
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Book
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Chapter
Introduction to sedimentary basins
An older and a younger group of sedimentary basins can be distinguished in West Africa, and the basins are of two main kinds. Intracontinental basins are relatively broad and shallow with a thin sediment fill,...
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Chapter
Introduction to anorogenic magmatism
Anorogenic magmatism in West Africa began in the Palaeozoic, soon after the Pan African event, but most of it occurred from Mesozoic times onwards. A number of petrographic provinces can be identified.
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Chapter
The geological setting
This chapter first outlines the main geological and physio-graphical elements of Africa. A brief review of the major subdivisions of geological time provides a framework within which the boundaries of cratonic...
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Chapter
Introduction: earthquakes, volcanoes and meteorites
The Quaternary should not be viewed in isolation but as a link with the more distant geological past. In many places, the present cycle of weathering and erosion began long ago, and is responsible for some imp...
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Chapter
The Pan African of West Africa — the western domain
In the western Pan African domain, the Rokelides encompass a single low-grade ensialic supracrustal belt on the western margin of the Archaean cratonic nucleus, which suffered slight reactivation during the Pa...
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Chapter
The Precambrian of West Africa — synthesis and review
The similarities between the three major age provinces in the West African Precambrian are more striking than the differences, though the rocks span more than 2000 Ma of geological time.As there is good eviden...
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Chapter and Conference Paper
Solar Central Receiver Costs for Electric Power Generation
In this paper the cost of solar electric power is compared to the cost of several fossil-fueled electricity generation technologies. There are two factors at work that will make solar power cost-competitive in...
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Chapter
Mesozoic to Tertiary basins — inland basins
After the seas retreated from Africa at the end of the Carboniferous there was a long period of continental erosion and sedimentation. The products of this phase did not begin to accumulate to any significant ...
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Chapter
Economic potential of the younger sedimentary basins
The Mesozoic-Tertiary basins of West Africa are of great economic importance to the countries in which they occur, mainly because of the energy resources they contain. These are dominated by petroleum, but inc...
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Chapter
The Permo-Triassic dolerites and carbonatites
The Permo-Triassic dolerites intrude rocks of the West African craton and the overlying Palaeozoic sediments. They are dominated by dykes and sills. The Freetown igneous complex is a layered gabbro-anorthosite...
