Browsing Conference Papers by Title
Now showing items 756-775 of 799
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Ultrasonic assisted amaranth stem pretreatment for bio-ethanol production
(ETA-Florence Renewable Energies, 2015)An investigation was undertaken to determine the effect of ultrasound on enzymatic hydrolysis rate and enhanced bioethanol yields. Compositional analysis of the feedstock reveals that amaranth lignocellulose contains 36.35% ... -
Ultrasonic assisted biodiesel production
(ETA-Florence Renewable Energies, 2014)One of the biggest hurdles in the production of biodiesel is the high production cost compared to petroleum-derived diesel. Even though the mechanical agitation utilised during biodiesel production is effective, it is ... -
Understanding work integrated learning in ICT: a systems perspective
(WASET, 2013)Information and communication technology (ICT) is essential to the operation of business, and create many employment opportunities. High volumes of students graduate in ICT however students struggle to find job placement. ... -
Unidentified galactic high-energy sources as ancient pulsar wind nebulae in the light of new high energy observations and the new code
(AIP, 2012)In a Pulsar Wind Nebula (PWN), the lifetime of inverse Compton (IC) emitting e− exceeds the lifetime of its progenitor pulsar (as well as its shell-type remnant), but it also exceeds the age of those that emit via synchrotron ... -
Unraveling the complex nature of the very high-energy γγ-ray blazar PKS 2155-304
(Sissa Medialab, 2019)PKS 2155-304 is a blazar located in the Southern Hemisphere, monitored with the High Energy Stereoscopic System (H.E.S.S.) at very high energy (VHE, E>100 GeV) γ rays every year since 2002. Thanks to the large data set ... -
Unraveling the emission geometry of the Fermi millisecond pulsars
(Fermi, 2009)The nine millisecond pulsars (MSPs) that have now been detected by Fermi-LAT are providing an excellent opportunity to probe the emission geometry of these ancient compact objects. As they are radio-loud, one may use the ... -
The use of an information security vocabulary test to assess information security awareness: an exploratory study
(Centre for Security, Communications and Network Research (CSCAN), 2010)The dependence on human involvement and human behavior to protect information assets makes it necessary to have an information security awareness program to make people aware of their roles and responsibilities towards ... -
The use of cytokines as indicators for drug safety
(Elsevier, 2019)In developing new compounds, questions about safety and efficacy are raised. Conventional preclinical studies of new compounds focus on bio-distribution, toxicology, safety pharmacology, pharmacokinetics, efficacy etc., ... -
The use of disruptive information technologies for competitive advantage in the banking sector of South Africa.
(Hempstead, NY : International Business Information Management Association (IBIMA), 2009)The main focus of this paper is to determine the impact of disruptive technology in the ICT environment and how new technologies can be managed in a secured architecture framework of organisations in the banking sector. ... -
The use of optimisation modelling for energy recovery investment decision making
(IEEE, 2019)Investment decision making is a common occurrence for any engineering company. These investments include any possibility from relative inexpensive to extremely costly equipment. When power generation turbine procurements ... -
The use of SDMS in developing e-learning systems in South Africa
(MCCSIS, 2014)The main focus of this study is to determine if systems development methodologies (SDMs) are being utilised in the development of electronic learning systems in South Africa. Electronic learning, or e-learning, is being ... -
The use of system development methodologies in the development of mobile applications: are they worthy of use?
(IEEE, 2018)The implementation of system development methodologies (SDMs) in mobile applications (mobile apps) development has a positive effect on companies and their respective software projects. SDMs provide a framework for planning, ... -
The use of tracking technology for improved management of trade corridors
(IEEE, 2013)The sub-Sahara African economy is suffering from the inefficient management of trade corridors. Long delays experienced at weigh bridges and border posts are a big contributor towards the slow average movement of freight. ... -
Using an effective viscosity to account for the effect of the walls on the pressure drop through an annular packed bed
(ASME, 2009)The question arose whether the correlation for the pressure drop prescribed for cylindrical pebble bed reactors by the Nuclear Safety Commission (KTA) of Germany could still be applied to the proposed annular configuration ... -
Using antenarrative approaches to investigate the perceptions of information systems’ actors regarding failure and success
(Springer, 2011)Many Information Systems are viewed as underperforming by failing to meet expectations or deliver value to customers. In order to try and understand why these problems occur we apply narrative methods in the IS domain, ... -
Using Critical Systems thinking to Improve Student Performance in Networking
(WASET, 2012)This paper explores how Critical Systems Thinking and Action Research can be used to improve student performance in Networking. When describing a system from a systems thinking perspective, the following aspects can be ... -
Using information and communication technology to improve the efficiency of African border posts
(IEEE, 2015)African border posts have long been characterized by high levels of inefficiency, resulting in long cross-border delays that hamper the African economy. This partly results from the conflicting objectives of the multiplicity ... -
Using mobile networks for effective cold chain management
(SATNAC, 2014)Research has shown that substantial in transit losses in perishable cargo are sustained due to malpractices in cold chain logistics. Such losses are even more prevalent in developing countries where supply chain systems ... -
Using visual texture analysis to classify raw coal components
(IEEE, 2015)Coal ore isn’t a uniform material. In order to optimize the coal liberation process it is necessary to classify a coal ore sample into its constituent components as quickly and cheaply possible. This paper investigates ... -
Utilising fluctuating off-gases more efficiently in a power co-generation environment through less flaring
(IEEE, 2016)Common engineering practice is to generate steam from burnable off-gases, in boiler houses, where excess steam is allocated for power generation after plant requirements are met. If the quantities or chemical composition ...
