Now showing items 2195-2214 of 2227

    • Washable Baghouse Operation and Design as Applied to Milk Powder Production 

      Gabites, John Raymond (University of Canterbury. Chemical and Process Engineering, 2007)
      The use of washable baghouses for fines collection in milk powder plants has been investigated. The main aim of this study was to increase the fundamental understanding of both operation and design of washable baghouses ...
    • Water Mist Suppression in Conjunction with Displacement Ventilation 

      Hume, Benjamin Piers (University of Canterbury, 2003)
      This study proposes and investigates a new type of water mist system where by air and water mist are blown into a fire compartment at low level using a displacement ventilation system. The air/water mist mixture enters ...
    • Water quality treatment and hydraulic efficacy of laboratory and field rain gardens. 

      Good, Joseph Francis (University of Canterbury. Department of Civil and Natural Resources Engineering, 2011)
      Urbanisation leads to increases in stormwater runoff, resulting in elevated contaminant (e.g. metal, sediment, and nutrient pollutant) loads, decreased local infiltration and greater peak flow intensities. Heavy metal ...
    • Wave envelope elements for acoustics 

      Macaulay, Gavin John (University of Canterbury. Mechanical Engineering, 1994)
      This thesis develops and extends a method for modelling acoustical propagation in unbounded domains. This wave envelope method is ideally suited for inclusion into existing acoustic finite element formulations. Results are ...
    • Wave-front sensing for adaptive optics in astronomy 

      van Dam, Marcos Alejandro (University of Canterbury. Electrical and Computer Engineering, 2002)
      Optical images of astronomical objects viewed through ground-based telescopes are blurred by the atmosphere. The atmosphere is turbulent and as a consequence the density of air is not evenly distributed. This results ...
    • Wavefront estimation in astronomical imaging. 

      Irwan, Roy (University of Canterbury, 1999)
      The challenge in building astronomical telescopes is to obtain the clearest possible image of a distant star, which should appear as a single point. Extended objects, such as galaxies and planets can be regarded as ...
    • Wavefront sensing and phase retrieval for astronomical imaging 

      Clare, Richard M. (University of Canterbury. Electrical and Computer Engineering, 2004)
      Images of astronomical objects captured by ground-based telescopes are distorted by the earth's atmosphere. The atmosphere consists of random time-varying layers of air of differing density and hence refractive index. These ...
    • Wavefront sensors in Adaptive Optics 

      Chew, Theam Yong (University of Canterbury. Electrical and Computer Engineering, 2008)
      Atmospheric turbulence limits the resolving power of astronomical telescopes by distorting the paths of light between distant objects of interest and the imaging camera at the telescope. After many light-years of travel, ...
    • Wavelength and time division multiplexing with lightpath trespassing for all-optical star local area networks 

      Macfarlane, Justin Ray (University of Canterbury. Computer Science, 1998)
      Many medium access control protocols have been proposed for optical wavelength division multiplexing local area networks with a star topology. These protocols range from those based on the concept of fixed-assignment of ...
    • Wavelets, ICA and statistical parametric mapping : with application to agitation-sedation modelling, detecting change points & to neuroinformatics 

      Kang, In (University of Canterbury, 2011)
      The wavelet methods developed, advocated and used in this thesis are primarily based on the discrete wavelet transform (DWT), wavelet thresholding and density estimation via wavelet smoothing. First a suite of wavelet ...
    • Waves generated by rock falls into reservoirs 

      Cornwall, M. W. M. (University of Canterbury. Engineering, 1971)
      Since the Vaiont Dam disaster in 1963, there has been an awareness among design engineers of the rockfall problem, where a large landslide into shallow water can generate water waves of appreciable size. The prediction of ...
    • WDM network design and destination conflicts 

      Yau, Victor (University of Canterbury. Computer Science, 1996)
      The parallel use of multiple channels in a WDM star network means that too many packets may simultaneously arrive for the same destination station, necessitating the implementation of a destination-conflict-resolution ...
    • Wearable Tools for Affective Remote Collaboration 

      GUPTA, KUNAL (University of Canterbury. Human Interface Technology Lab, NZ, 2015)
      Affective computing is the study and development of systems that can recognize human emotions and feelings. Emotions are always an interesting topic of research and these days researchers are trying to develop systems ...
    • The web and the tree : on the interplay between ecological processes and evolutionary histories. 

      Dalla Riva, Giulio Valentino (University of Canterbury, 2016)
      In this thesis, we introduce and explore a mathematical framework in which to study the evolution of and within ecological networks. Hence, we focus on a peculiar interpretation of the “biodiversity” concept, namely one ...
    • What causes natural durability in Eucalyptus bosistoana timber? 

      Van Lierde, Julot (University of Canterbury. School of Forestry, 2013)
      This study investigated the natural durability of 8 and 60 year old Eucalyptus bosistoana (coast grey box). The sample’s heartwood compounds were extracted with an optimised extraction process and then incorporated into ...
    • When are two hands better than one? : a study of bimanual interaction. 

      Schmidt, Benjamin (University of Canterbury. Computer Science and Software Engineering, 2002)
      In everyday life people skillfully use both hands in complex tasks such as driving a car or drawing a picture. However, when attempting tasks on a computer, we are normally restricted to using our dominant hand for direct ...
    • Whey permeate fouling of evaporators 

      Howell, John Michael (University of Canterbury. Chemical and Process Engineering, 1998)
      Whey permeate fouling was studied to gain a better understanding of the processes involved and find methods of alleviation. An apparatus was built which allowed study of fouling under industrial conditions. It was found ...
    • Why do farmers plant trees? : developing and testing a decision-making model for Indonesian farmers 

      Wurjanto, Didy (University of Canterbury. Forestry, 2001)
      The main issue faced by the Government of Indonesia (GoI) in managing its tropical forest resources is the uncontrolled forest degradation that has reached an alarming rate. This problem particularly has adversely affected ...
    • Why does New Zealand export sawn timber to some markets and logs to others? 

      Luketina, Ivan (University of Canterbury, 2017)
      New Zealand’s annual log harvest has increased rapidly from 2009 to 2017. This increase in harvest has been mostly exported as logs, rather than being processed in New Zealand into sawn timber and other products. Previous ...
    • Widening the Knowledge Acquisition Bottleneck for Intelligent Tutoring Systems 

      Suraweera, Pramuditha (University of Canterbury. Computer Science and Software Engineering, 2007)
      Empirical studies have shown that Intelligent Tutoring Systems (ITS) are effective tools for education. However, developing an ITS is a labour-intensive and time-consuming process. A major share of the development effort ...