Richard J. Bullock

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PURPOSE To report the clinical findings of 17 patients with ocular/orbital injuries produced by launched water balloons; to determine water balloon kinetic energies in experimental and theoretical studies. METHODS Six case histories are presented, 1 case was retrieved from the medical literature, and 10 cases were reported to the National Injury(More)
RF-ID systems are susceptible to frequency interference from other communciation systems particularly when the RF-ID tags transmit on a fixed carrier frequency. The RF-ID systems are less vunerable to frequency interference when frequency diversity is used by the RF-ID system. This paper proposes an architecture for an RF-ID receiver which allows a number(More)
PURPOSE The authors report the findings of 17 patients with ophthalmic injuries produced by launched water balloons; they determine water balloon kinetic energies in experimental and theoretical studies. METHODS Six case summaries are presented; one case report was retrieved from the literature; ten injuries were reported to the Consumer Product Safety(More)
BACKGROUND Specific desensitisation to food allergens, which produce anaphylaxis after ingestion, has not been considered as a treatment for food allergy until recently. The purpose of this study was to assess if a parenteral immunotherapy program, using a partially characterised crude peanut extract, could induce a state of immunological tolerance in a(More)
This paper proposes an architecture for an RFID receiver which allows a number of RFID tags with oscillators of low frequency stability to be accommodated within the same RFID cell. The RFID tags can transmit at carrier frequencies anywhere within a wide band of 30 MHz centred on 5.8 GHz. The synchronisation technique uses a carrier frequency estimator(More)
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