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Browsing College of Science, Engineering and Technology by Title

Browsing College of Science, Engineering and Technology by Title

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  • Lie symmetry and μ-symmetry methods for nonlinear generalized Camassa–Holm equation 
    Jafari, H.; Goodarzi, K.; Khorshidi, M.; Parvaneh, V.; Hammouch, Z. (2021-07-08)
    Abstract In this paper, a Lie symmetry method is used for the nonlinear generalized Camassa–Holm equation and as a result reduction of the order and computing the conservation laws are presented. Furthermore, ...
  • Lie symmetry reductions and conservation laws for fractional order coupled KdV system 
    Jafari, Hossein; Sun, Hong G; Azadi, Marzieh (2020-12-11)
    Abstract Lie symmetry analysis is achieved on a new system of coupled KdV equations with fractional order, which arise in the analysis of several problems in theoretical physics and numerous scientific ...
  • Liming-like curve constructions 
    Baart, L; McLeod, R (2000)
    R.A. Liming developed a method based on classical conic section theory to design cross-sections of aircraft using implicit rather than explicit forms of the quadratic equations. In its basic form the method is used to ...
  • Limitations and problems of management applications that use enterprise extensions to the SNMP MIB 
    Oosthuysen, WH; McDonald, T (South African Computer Society (SAICSIT), 1995)
    Until some years ago, management of TCP/IP based products was done in a proprietary fashion. Many large companies build their own system-wide management facilities because of a lack of usable systems to manage heterogeneous ...
  • A Linda solution to the evolving philosophers problem 
    Hazelhurst, SE (South African Institute of Computer Scientists and Information Technologists, 1991)
    The dining philosophers problem and the evolving philosophers problems are abstractions of resource sharing problems in parallel and distributed systems. A Linda solution to the dining problem has already been shown; this ...
  • Linear perturbations of a Schwarzschild black hole 
    Kubeka, Amos Soweto (2013-02)
    We firstly numerically recalculate the Ricci tensor of non-stationary axisymmetric space-times (originally calculated by Chandrasekhar) and we find some discrepancies both in the linear and non-linear terms. However, ...
  • Linear response surface analysis and some applications 
    Hattingh, JM (2000)
    In general response surface analysis refers to the modeling of experimental or observational data. Computer technology and graphical techniques obviously play a significant role in the representations of these models. A ...
  • A linear time algorithm for the longest (s-t)-path problem restricted to partial k-trees 
    Mata-Montero, M; Ellis, JA (South African Computer Society (SAICSIT), 1994)
    The Longest (s-t)-path Problem, a known NP-complete set, is shown to admit a linear time solution when the instances of the problem are restricted to partial k-trees. This class of graphs is defined and some of the properties ...
  • Local area networks in perspective 
    Kritzinger, Pieter S. (Computer Society of South Africa (on behalf of SAICSIT), 1987)
    Current scientific and trade literature are flooded with information about local area networks. Details about physical media and their properties, versions of media access methods confusingly called protocols, variations ...
  • Local fractional system for economic order quantity using entropy solution 
    Ibrahim, Rabha W; Jafari, Hossein; Jalab, Hamid A; Hadid, Samir B (2019-03-06)
    Abstract The economic order quantity (EOQ) model describes the quantity that minimizes the aggregate sum of all cost functions. We propose an assembly for EOQ, nonlinear local fractional differential models ...
  • Local properties of graphs 
    De Wet, Johan Pieter (2016-10)
    We say a graph is locally P if the induced graph on the neighbourhood of every vertex has the property P. Specically, a graph is locally traceable (LT) or locally hamiltonian (LH) if the induced graph on the neighbourhood ...
  • A logic for the design of multiprogramming systems 
    Misra, J (South African Computer Society (SAICSIT), 1998)
    This paper presents a short introduction to the UNITY logic, a fragment of linear temporal logic. The logic was designed to specify safety and progress properties of reactive systems. A version of the UNITY ...
  • Logic programming: ideal vs practice 
    Labuschagne, W.A.; Van der Westhuizen, PL (South African Computer Society (SAICSIT), 1992)
    The logician who encounters logic programming expects it to involve 'using predicate logic as a programming language'. He is soon disillusioned. He discovers that it really means 'programming in PROLOG', which in tum seems ...
  • Logics of belief 
    Viljoen, Elizabeth (1997-04)
    The inadequacy of the usual possible world semantics of modal languages when the meaning of 'belief' is attached to the modal operator is discussed. Three other approaches are then investigated. In the case of Moore's ...
  • A Logistic regression analysis model for predicting the success of computer networking projects in Zimbabwe 
    Masamha, Tavengwa (2020-02)
    Information and communication technology (ICT) greatly influence today’s business processes be it in public or private sectors. Everything that is done in business requires ICT in one way or the other. Research in ICTs ...
  • Logistic regression to determine significant factors associated with share price change 
    Muchabaiwa, Honest (2013-02)
    This thesis investigates the factors that are associated with annual changes in the share price of Johannesburg Stock Exchange (JSE) listed companies. In this study, an increase in value of a share is when the share price ...
  • Long memory mean and volatility models of platinum and palladium price return series under heavy tailed distributions 
    Ranganai, Edmore; Kubheka, Sihle B (2016-12-09)
    Abstract South Africa is a cornucopia of the platinum group metals particularly platinum and palladium. These metals have many unique physical and chemical characteristics which render them indispensable to ...
  • Long range dependence in South African Platinum prices under heavy tailed error distributions 
    Kubheka, Sihle (2016-11)
    South Africa is rich in platinum group metals (PGMs) and these metals are important in providing jobs as well as investments some of which have been seen in the Johannesburg Securities Exchange (JSE). In this country this ...
  • Loss probabilities for circuit-switched networks 
    Berezner, SA; Krzesinski, AE (1995)
    Consider a circuit-switched network where several source switches are connected to a destination switch via a tandem switch. Circuit-switched networks traditionally employ a Blocked Calls Cleared ( BCC) admission rule: a ...
  • Low Field Microwave Absorption Studies on BiFe(1-x)Mn(x)O3 Multiferrioc System 
    Sibanda, Brian (2021-12)

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