David Bowers

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This paper explores the possibility of using water colour to quantify the concentration of coloured dissolved organic matter (CDOM), and through it, dissolved organic carbon (DOC) and salinity in a turbid estuary in which suspended sediments also influence water colour. The motivation of the work is that the method could be applied to water colour(More)
Object and relational technologies are grounded in different paradigms. Each technology mandates that those who use it take a particular view of a universe of discourse. Incompatibilities between these views manifest as problems of an object-relational impedance mismatch. In this paper we propose a conceptual framework for the problem space of(More)
Object and relational technologies are grounded in different paradigms. Each technology mandates that those who use it take a particular view of a universe of discourse. Incompatibilities between these views manifest as problems of an object-relational impedance mismatch. In a previous paper we proposed a new conceptual framework for the problem space of(More)
Keywords: chromophoric dissolved organic matter CDOM dissolved organic matter DOM macroalgae photochemical a b s t r a c t The quantity of chromophoric or coloured dissolved organic matter (CDOM) released by eleven species of intertidal and sub-tidal macroalgae commonly found on UK shores was investigated. The subsequent breakdown of CDOM was also measured(More)
—Addressing a problem of software integration is a fact of life for those involved in software development. The popularity of both object and relational technologies means that they will inevitably be used together. However, the combination of these two technologies introduces problems. These problems are referred to collectively as the object-relational(More)
'Intentacles' are wearable, programmable antennae intended to augment the wearer's communication of emotion. The antennae move in 3D and change colour, controlled by an Arduino Nano. The antennae's behaviour can be controlled directly using buttons, or programmed to respond to sensor inputs. Intentacles can respond to external stimuli such as music, light(More)
SQL: 1999 introduced the capability to support object concepts. It is now possible to design an SQL database schema using relational and object models. Each model represents a different abstraction. We use a framework to understand the implications of this change and to explore the use of mixed abstractions in an SQL: 1999 schema. We describe two new kinds(More)
Introduction The major developed countries abandoned the Bretton Woods system of fured exchange rates in March 1973 in favor of a system of more generalized floating rates. Over the 13 years since the adoption of floating exchange rates, however, governments generally have refused to allow the private market fiee rein in determining the foreign-exchange(More)
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