Huayi Huang

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Number entry is an ubiquitous task in medical devices, but is implemented in many different ways, from decimal keypads to seemingly simple up/down buttons. Operator manuals often do not give clear and complete explanations , and all approaches have subtle variations, with details varying from device to device. This paper explores the design issues,(More)
We report on a case study investigating current practice in the use of a programmable infusion pump. We start by for-malising an existing description of the procedure followed by nurses for setting up a commercial infusion pump obtained via observation and interview. We then compare and contrast this procedure with a formal description of the sequence of(More)
A systematic tool-based method is outlined that raises questions about the circumstances surrounding an incident: why it happened and what went wrong. The approach offers a practical and systematic way to apply a distributed cognition perspective to incident investigations , focusing on how available information resources (or the lack of them) may shape(More)
Bacillus atrophaeus XW2 was isolated from healthy poplar leaves and exhibited a strong inhibitory effect against Colletotrichum gloeosporioides, a predominant fungus causing poplar anthracnose. The culture filtrate and bacterial lysate of XW2 were antagonistic against hyphal growth and spore germination. The average diameter of the inhibition zones of(More)
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