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Browsing by Author "Gledhill, I"

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  • Gledhill, Irvy MA (2011-11)
    This study concludes the possession of a theoretical framework for arbitrary manoeuvre which allows us to keep an eye on transformations. In the theory, relative frame equations are useful in guiding us in what to look ...
  • Gledhill, Irvy MA; Nordström, J (CSIR, 2010-09-01)
    Practical requirements are now arising in which significant acceleration takes place during flight; 5th generation missiles, such as A-Darter, execute turns at 100 g, where g is the acceleration due to gravity, and thrust ...
  • Gledhill, Irvy MA; Nordstrom, J (2011-09)
    This study concludes that: 1. the energy equation is expressed in terms of translations and rotational acceleration, 2. the generalised enthalpy equation is similarly expressed, 3. but the meaning of these is still to be ...
  • Greben, JM; Gledhill, Irvy MA; Cooper, Antony K; De Villiers, R (2010-01)
    The authors examine the question of stability of breakwater structures using the simulation software PhysX. This “physics engine” can be used to construct various packings of breakwater elements, each of which can be used ...
  • Bode, M; Gledhill, Irvy MA; Gravestock, D; Hoppe, H; Khan, T; Moleele, S; Nkabinde, L; Pelly, S; van der Westhuyzen, C (CSIR, 2010-09)
    A compound possessing anti-HIV activity similar to that of FDA-approved nevirapine was developed. It acts as a non-nucleoside reverse transcriptase inhibitor, the compound shows good cell permeability, and a quantitative ...
  • Govender, Nicolin; Gledhill, Irvy MA; Kok, S; Wilke, N (Colorado School of Mines, 2013-08)
    The protection of harbours and coastal infrastructure is of vital importance to South Africa. A major development in the design of packing strategies for breakwaters is numerical modelling, and the use of physics engines ...
  • Rao, S; Gledhill, Irvy MA; Hartline, BK; Lakhdar, ZB; MacLachlan, AJ; Mack, K; Mehta, A; Wu, L-A; Zhang, H (American Institute of Physics, 2008-10)
    Three workshop sessions on personal professional development were held during the Third IUPAP Women in Physics Conference. These were designed to teach participants about planning for career success, "survival skills," ...
  • Van Zyl, Lourens H; Gledhill, Irvy MA (2011-11)
    A grid was generated with the base of the fin, i.e. the hinge line, on the axis of a cylindrical domain with a diameter of 2m. Due to the axial symmetry of the setup, rotation of the T-tail should not change the pressure ...
  • Greeff, M; Lysko, MD; Gledhill, Irvy MA; Bezuidenhout, DF; Hattingh, Z; Jeebodh, P (SAIP, 2010-02)
    The potential for post-graduate students in Physics, at universities around South Africa, may be high. Still, only a trickle of Bachelor of Science graduates venture into post-graduate studies in Physics. The influx may ...
  • Mukaro, R; Govender, K; Gledhill, Irvy MA; Kokwe, NL (2010-01)
    In this paper we report on the laboratory investigations of breaking water waves. Measurements of the water levels and instantaneous fluid velocities were conducted in water waves breaking on a sloping beach within a glass ...
  • Diale, M; Buchner, SJ; Buthelezi, Z; Gledhill, Irvy MA; Grayson, DJ; Kgabi, NA (American Institute of Physics, 2008-10)
    Overall about 40% of South African researchers in science, engineering, and technology are women, but the percentage of women in the physical sciences is significantly lower. In 2006, it appeared that about 16% of the 500 ...