ResearchArchive–Te Puna Rangahau: Recent submissions

  • Stagnant-Cap Bubbles With Both Diffusion and Adsorption Rate-Determining 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 2004)
    When a gas bubble rises in an impure liquid, its surface often has an upper spherical cap with negligible shear stress, a lower spherical cap with negligible tangential velocity, and a very small transition region between ...
  • Bubbles Rising in Line: Why is the First Approximation So Bad? 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 1997)
    An analytical theory is given for the viscous wake behind a spherical bubble rising steadily in a pure liquid at high Reynolds number, and for that wake's effect on the motion of a second bubble rising underneath the first. ...
  • Fortran 95 for Fortran 77 Users 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 2007)
    For 50 years Fortran has been a computer language used mainly by engineers and scientists (but by few computer scientists), mainly for numerical work. Five versions were standardised and are commonly referred to as f66, ...
  • What Really is a Continuous Function? 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 2007)
    There are surprisingly many essentially different definitions of continuity even of a real function of one real variable. This paper shows that the definitions in various textbooks published from 1893 to 1992 have some ...
  • Growing Bubbles Rising in Line 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 2001)
    Over many years the author and others have given theories for bubbles rising in line in a liquid. Theory has usually suggested that the bubbles will tend towards a stable distance apart, but experiments have often showed ...
  • Reducing Parabolic Partial Differential Equations to Canonical Form 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 1994)
    A simple method of reducing a parabolic partial differential equation to canonical form if it has only one term involving second derivatives is the following: find the general solution of the first-order equation obtained ...
  • Sexual Abuse Counsellors' Responses to Stress and Trauma: a Social Work Perspective 
    Pack, Margaret (Te Herenga Waka—Victoria University of Wellington, 2004)
    Based on qualitative interviews with 36 ACC-approved counsellors, this research explores the range of social, organisational and theoretical factors that impact on sexual abuse counsellors. In this context the author ...
  • The Coulomb Potential of a Line of Charges 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 1993)
    Recently Lekner gave formulae for the total Coulomb force and potential on a charged particle due to a line of other charged particles, and showed how to use it for a regular array of charges in two or three dimensions. ...
  • A Bubble Rising in Viscous Fluid: Lagrange's Equations For Motion at a High Reynolds Number 
    Harper, J F (Te Herenga Waka—Victoria University of Wellington, 2001)
    A gas bubble rising steadily in a pure liquid otherwise at rest at a moderate Weber number is, to a good approximation, of oblate spheroidal shape. Previous analytical calculations of that shape at high Reynolds numbers ...
  • SOCSol4L: an Improved MATLAB (R) Package For Approximating the Solution to a Continuous-Time Stochastic Optimal Control Problem 
    Azzato, Jeffrey D; Krawczyk, Jacek B (Te Herenga Waka—Victoria University of Wellington, 2006)
    Computing the solution to a stochastic optimal control problem is difficult. A method of approximating a solution to a given continuous-time stochastic optimal control problem using Markov chains was developed in [Kra01]. ...
  • A Report on Using Parallel MATLAB (R) For Solutions to Stochastic Optimal Control Problems 
    Azzato, Jeffrey D; Krawczyk, Jacek B (Te Herenga Waka—Victoria University of Wellington, 2008)
    Parallel MATLAB (R) is a recent MathWorks (TM) product enabling the use of parallel computing methods on multicore personal computers. SOCSol is the generic name of a suite of MATLAB (R) routines that can be used to obtain ...
  • Parallel SOCSol: a Parallel MATLAB (R) Package For Approximating the Solution to a Continuous-Time Stochastic Optimal Control Problem 
    Azzato, Jeffrey D; Krawczyk, Jacek B (Te Herenga Waka—Victoria University of Wellington, 2008)
    This article is a modified version of [AK06]. Both articles explain how a suite of MATLAB (R) routines distributed under the generic name SOCSol can be used to obtain optimal solutions to continuous-time stochastic optimal ...
  • InfSOCSol2: an Updated MATLAB (R) Package For Approximating the Solution to a Continuous-Time Infinite Horizon Stochastic Optimal Control Problem 
    Azzato, Jeffrey; Krawczyk, Jacek B (Te Herenga Waka—Victoria University of Wellington, 2008)
    This paper describes a suite of MATLAB (R) routines devised to provide an approximately optimal solution to an infinite-horizon stochastic optimal control problem. The suite is an updated version of that described in ...
  • Learning Through Communities of Practice: a Strategic and Collaborative Approach 
    Roberts, Sue; Clements, Charlotte (Te Herenga Waka—Victoria University of Wellington, 2008)
    As Wenger (2002, 2003) highlights, researchers and practitioners in many different contexts find communities of practice (CoP) a useful approach to knowing and learning. This showcase explores the development of such a CoP ...
  • Sexual Abuse Counsellors' Response to Stress and Trauma: a Social Work Perspective 
    Pack, Margaret (Te Herenga Waka—Victoria University of Wellington, 2004)
    Based on qualitative interviews with 36 ACC-approved counsellors and their significant others, this research explores the range of social, organisational and theoretical factors that impact on sexual abuse counsellors. In ...
  • The Concept of Hope in Gestalt Therapy: Its Usefulness for Ameliorating Vicarious Traumatisation 
    Pack, Margaret (Te Herenga Waka—Victoria University of Wellington, 2007)
    Hope is intrinsic to the work of psychotherapy yet it remains implicit in much of what we do as psychotherapists. The concept of hope is discussed in this article in relation to the vicarious traumatisation literature. I ...
  • Java Bytecode Verification for @NonNull Types 
    Pearce, David J; Male, Chris; Dymnikov, Constantine; Potanin, Alex (Te Herenga Waka—Victoria University of Wellington, 2008)
    Java's annotation mechanism allows us to extend its type system with non-null types. However, checking such types cannot be done using the existing bytecode verification algorithm. We extend this algorithm to verify non-null ...
  • Snapshot Query-Based Debugging 
    Noble, James; Potanin, Alex; Biddle, Robert (Te Herenga Waka—Victoria University of Wellington, 2004)
    Object-oriented programs, when executed, produce a complex webs of objects and references between them, generally referred to as object graphs. These object graphs are difficult to design correctly and even more difficult ...
  • Annotating UI Architecture with Actual Use 
    Ramsay, Neil; Potanin, Alex; Stuart, Marshall (Te Herenga Waka—Victoria University of Wellington, 2008)
    Developing an appropriate user interface architecture for supporting a system's tasks is critical to the system's overall usability. While there are principles to guide architectural design, confirming that the correct ...
  • Featherweight Generic Confinement 
    Noble, James; Potanin, Alex; Biddle, Robert; Clarke, Dave (Te Herenga Waka—Victoria University of Wellington, 2006)
    Existing approaches to object encapsulation either rely on ad hoc syntactic restrictions or require the use of specialised type systems. Syntactic restrictions are difficult to scale and to prove correct, while specialised ...

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