Browsing by Title
Now showing items 4967-4986 of 35418
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Comparison of Dynamic Spectrum Access schemes in a common system model
(North-West University, 2019)The fourth generation (4G) and fifth generation (5G) mobile networks performance have been predicted through a broad consensus that they will not come close to meeting the demands that networks will face in the next decade. ... -
A comparison of entrepreneurial intentions of Generation Y students in South Africa and Zimbabwe
(North-West University (South Africa), Vaal Triangle Campus, 2015)Entrepreneurship has enjoyed a great deal of attention from researchers and policy makers, and it is often viewed as a developmental pillar for various nations. Researchers have been trying to find answers to the factors ... -
A comparison of evolutionary computation and deep reinforcement learning for portfolio optimization
(North-West University (South Africa)., 2021)In portfolio management, asset allocation is one of the most crucial and difficult challenges investors face. Asset allocation is defined as a decision making process of spreading available funds into various financial ... -
Comparison of extractants for the separation of TaF5 and NbF5 in different acidic media
(Elsevier, 2014)To optimise the solvent extraction (SX) of Ta and Nb, eight different extractants were investigated, including the cation exchangers di-iso-octyl-phosphinic acid (PA) and di-(2-ethylhexyl)-phosphoric acid (D2EHPA), the ... -
Comparison of feature-based classifiers in Automatic Modulation Classification systems
(North-West University, 2018)In South Africa, the telecommunications regulator, ICASA, follows a ?xed spectrum allocation approach. The radio spectrum is assigned to incumbents (primary users) on a long-term basis. This practice follows a wholesale ... -
A comparison of four sputum pre-extraction preparation methods for identifying and characterising Mycobacterium tuberculosis using GCxGC-TOFMS metabolomics
(Elsevier, 2012)In many pulmonary diseases, sputum is a valuable sample material for use in disease characterisation and diagnostics. However, due to its high viscosity and uneven consistency (lumpiness), it is difficult to obtain ... -
A comparison of frameworks that measure the success of information technology projects
(North-West University (South Africa), 2017)Project management is an enhanced way of managing people, materials and/or equipment that is used when pursuing projects in different organizations. As described, a project is a brief attempt to create an end result or a ... -
A comparison of generalization techniques on supervised chess evaluation functions
(North-West University (South Africa), 2021)This dissertation was created in pursuit of comparing different deep neural network general-ization techniques on neural networks that were trained by supervised optimisation to be used as chess evaluation functions. ... -
Comparison of heat transfer models at the pebble, gas and reflector interface in the PBMR
(North-West University, 2010)It is a great challenge in the design of the PBMR to accurately predict gas flow and heat transfer in the reactor. Understanding the heat transfer at the core-reflector interface in particular is a very important aspect ... -
A comparison of illuminance values obtained from three illuminance measuring instruments
(North-West University (South-Africa), 2022)In the field of occupational hygiene, light and the use of different lighting types have become fundamental control measures in reducing risks to health and safety while at the same time promoting increased productivity ... -
Comparison of in vitro and computational experiments on the relation of inter-beat interval and duration of repolarization in a specific type of human induced pluripotent stem cell-derived cardiomyocytes
(PLoS, 2019)We compared a published computational model of the action potential of a specific type of human induced pluripotent stem cell -derived cardiomyocytes (hiPSC-CM) with experimental field potential data with regard to their ... -
Comparison of industrial wastes as binder in the agglomeration of coal fines
(North-West University (South Africa)., 2021)The industries that consumed the most coal in South Africa, in 2015, were electricity generation, 53%, basic iron and steel manufacturing, 20%, and synthetic fuel and chemical industries, 10%, with the rest being used in ... -
A comparison of integrated transport and spatial planning instruments : a case study of the Eden district municipality, Hermanus local municipality and Cape Town metropolitan areas
(North-West University, 2012)In the field of city planning, a growing need exists for the integration of spatial development with transportation planning instruments. This study identifies issues related to the definition, evaluation and implementation ... -
Comparison of ionically and ionical-covalently cross-linked polyaromatic membranes for SO2 electrolysis
(Elsevier, 2014)It has been shown that hydrogen, which can be used for energy storage, can be produced efficiently by the membrane based Hybrid Sulfur (HyS) process. During the HyS electrolysis step, SO2 and H2O are converted to H2 and ... -
Comparison of jump-landing protocols with Biodex Balance System as measures of dynamic postural stability in athletes
(Taylor & Francis, 2018)The objective of the study was to determine whether a relationship exists between the two common methods for assessing postural stability in athletes: the time-to-stabilisation (TTS) via force-plate and the Biodex Balance ... -
A comparison of lexical specificity in the communication verbs of L1 English and TE student writing.
(Taylor & Francis, 2011)Although verbs play a pivotal role in the construction and understanding of clauses, lexical specificity is rarely investigated in this class. Instead researchers prefer to investigate lexical specificity in the noun ... -
A comparison of low and high activity precatalysts: do the calculated energy barriers during the self-metathesis reaction of 1-octene correlate with the precatalyst metathesis activity?
(Wiley, 2014)The self-metathesis reaction of 1-octene with several wellknown Grubbs-type precatalysts and the new Z-selective Grubbs precatalyst were studied with molecular modeling. The obtained Gibbs-free energy values for all the ... -
A comparison of maintenance and support challenges within a data warehousing environment to that of a transactional application environment in a South African context
(2014)In transactional systems development literature, maintenance is reported as being a phase in the software development life cycle. In practice, this phase is often neglected as it occurs post-deployment and other ongoing ... -
A comparison of methods for incubating zooplankton diapausing eggs from sediment of endorheic pans in the Free State, South Africa
(Taylor & Francis, 2014)Determining the composition of zooplankton in endorheic pans can be challenging, and live sampling of these microcrustaceans does not give a true indication of their species diversity and abundance. The incubation of ... -
A comparison of microbial community function and structure in rehabilitated asbestos and coal discard sites
(Springer, 2012)Previous studies have made some progress with the use of microbial community properties as assessment criteria for rehabilitation success of postmining areas. Currently, there is a need for reference ranges of specific ...