Reduction of Soil-Borne Plant Pathogens Using Lime and Ammonia Evolved from Broiler Litter

In laboratory and micro-plots simulations and in a commercial greenhouse, soil ammonia (NH3) and pH were manipulated as means to control soil-borne fungal pathogens and nematodes. Soil ammonification capacity was increased by applying low C/N ratio broiler litter at 1–8% (w/w). Soil pH was increased using lime at 0.5–1% (w/w). This reduced fungi (Fusarium oxysporum f. sp. dianthi and Sclerotium rolfsii) and root-knot nematode (Meloidogyne javanica) in lab tests below detection. In a commercial greenhouse, broiler litter (25 Mg ha−1) and lime (12.5 Mg ha−1) addition to soil in combination with solarization significantly reduced M. javanica induced root galling of tomato test plants from 47% in the control plots (solarization only) to 7% in treated plots. Root galling index of pepper plants, measured 178 days after planting in the treated and control plots, were 0.8 and 1.5, respectively, which was statistically significantly different. However, the numbers of nematode juveniles in the root zone soil counted 83 and 127 days after pepper planting were not significantly different between treatments. Pepper fruit yield was not different between treatments. Soil disinfection and curing was completed within one month, and by the time of bell-pepper planting the pH and ammonia values were normal

Aging-induced double ferroelectric hysteresis loops in BiFeO₃multiferroic ceramic

Author name used in this publication: Siu Wing Or2007-2008 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Novel Fibre-like Crystals in Thin Films of Poly Ether Ether Ketone (PEEK)

Published onlineArticleThis paper highlights the fabrication and characterization of a new type of crystal in quenched, cooled and annealed PEEK films. Following this process, a “fibre-like” crystal structure has been identified. Across the film surface, these fibres cross each other and form a random network of interconnected fibres.The authors would like to thanks for the support of the UK Engineering and Physical Science Research Council (EPSRC grant no EP/L017318/1)

Additional dc magnetic field response of magnetostrictive/piezoelectric magnetoelectric laminates by Lorentz force effect

Author name used in this publication: Siu Wing OrAuthor name used in this publication: Helen Lai Wa Chan2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Magnetoelectric effect in laminate composite of magnets/0.7Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.3PbTiO₃ single crystal

Author name used in this publication: Siu Wing OrAuthor name used in this publication: Helen Lai Wa Chan2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Universally Composable Quantum Multi-Party Computation

The Universal Composability model (UC) by Canetti (FOCS 2001) allows for secure composition of arbitrary protocols. We present a quantum version of the UC model which enjoys the same compositionality guarantees. We prove that in this model statistically secure oblivious transfer protocols can be constructed from commitments. Furthermore, we show that every statistically classically UC secure protocol is also statistically quantum UC secure. Such implications are not known for other quantum security definitions. As a corollary, we get that quantum UC secure protocols for general multi-party computation can be constructed from commitments

Converse magnetoelectric effect in three-phase composites of piezoceramic, metal cap, and magnet

Author name used in this publication: Siu Wing OrAuthor name used in this publication: Helen Lai Wa ChanAuthor name used in this publication: Wai Yin Wong2006-2007 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Enhanced magnetoelectric effect in longitudinal-transverse mode Terfenol-D/Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-PbTiO₃ laminate composites with optimal crystal cut

Author name used in this publication: Siu Wing OrAuthor name used in this publication: Helen Lai Wa Chan2007-2008 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe