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07 September 2018 Photo Stephen Collett
Mathematician makes popular contribution to science Prof Atangana
Prof Atangana is the first African under 40 years of age to be selected as African Academic of Science affiliated in Mathematics. He recently delivered his inaugural lecture and is pictured with Eelco Lukas, Director of the Institute for GroundwaterStudies at the UFS (middle) and Prof Hendri Kroukamp, Acting Vice-Rector: Academic

Prof Abdon Atangana, researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), recently delivered his inaugural lecture on the topic: Understanding God’s Nature with Non-Local Operators.

His research interests are methods and applications of partial and ordinary differential equations, fractional differential equations, perturbation methods, asymptotic methods, iterative methods, and groundwater modelling. Prof Atangana is the founder of the fractional calculus with non-local and non-singular kernels popular in applied mathematics today. He has introduced more than 12 mathematical operators, most of which bear his name (such as the Atangana-Baleanu fractional integral).

He stated: “We will not stop until we change the classical view of doing mathematics. Mathematics is not a subject but a tool given to mankind by God to understand nature. One single mathematical operator cannot portray God’s nature accurately. Therefore the Atangana Baleanu was suggested.”

New weapons

Most physical problems can be expressed in terms of mathematical formulations called differential equations. According to him the differential equation’s aim is to analyse, understand, and predict the future of a physical problem. Prof Atangana introduced the Atangana-Baleanu fractional integral. This brought new weapons into applied mathematics to model complex real-world problems more accurately.

Prof Atangana explained: “The Atangana-Baleanu fractional derivative is able to describe real-world problems with different scales, or problems that change their properties during time and space for instance, the spread of cancer, the flow of water within heterogeneous aquifers, movement of pollution within fractured aquifers, and many others. This crossover behaviour is observed in many empirical systems.”

Sudden change

The Atangana-Baleanu fractional derivative is also able to describe physical or biological phenomena, such as a heart attack, the physiological progression from life to death, structural failure in an aeroplane, and many other physical occurrences with sudden change with no steady state.

The new differential and integral operators are nowadays in fashion and are being applied with great success in many fields to model complex natural phenomena. It is believed that the future of modelling complex real-world problems relies on these non-local operators.

News Archive

UFS takes steps to address power shedding
2008-01-31

The problem of power shedding was urgently discussed by the Executive Committee of the Executive Management (Exco) during its meeting yesterday.

A report was presented by Ms Edma Pelzer, Director: Physical Resources and Special Projects, and a consulting electrical engineer about possible short, medium and long term solutions for the UFS.

This includes (a) the possible installation of equipment (eg. power generators) and (b) operating procedures to ensure the UFS’s functionality despite power shedding.

We are also in contact with Centlec to bring about the best possible arrangements for the UFS regarding the power shedding. It is possible that refined power shedding schedules will be implemented within a few weeks or a month to ensure that there is minimal disruptions at the UFS (especially during evening lectures).

In the long term it is unaffordable to generate power for the whole campus to meet everyone’s electricity needs. Only critical points will be supplied with emergency power generators.

Emergency power generation for certain critical points have already been provided for (eg. the Callie Human Centre, the evacuation of large halls, computer services, critical long term research projects, etc.). We have been doing surveys since 2006 to determine the UFS’s preparedness for “normal” power failures. The extent of the current situation has, however, taken the whole country by surprise.

Certain urgent steps were decided on yesterday. A decision was made to immediately design emergency power systems and supply it to the new examination centre and large lecture halls such as the Stabilis, Flippie Groenewoud, Agriculture building, and possibly the West Block. The delivery and installation of these systems will, however, take from three to six months.

The UFS will have to manage despite the power shedding, even after the emergency power systems have been installed and we will not be able to function as normal. Every division must devise operating procedures to deal with the power shedding without jeopardising the quality of core functions.

Bloemfontein is luckier than many other cities because Centlec is able (so far) to keep to the published schedule to a large extent.

Plans are also being made to keep staff and students continuously informed via the UFS web site about expected power shedding schedules and risks of power shedding in the course of a day.

Exco requests every faculty and support service to think about suitable operational solutions for managing their work and meetings during a power shedding.

Every line head has instructions to urgently determine the situation and needs in his or her division and indicate what practical arrangements can and must be made to schedule work around the power shedding. Every line head must provide Exco with a status report within a week.

In this way critical areas in terms of core functions and high quality service delivery will be determined and receive attention. Security systems and the safety of staff and students will also receive specific attention - this includes the residences.

In the mean time the Department of Physical Resources will carry on with a wide-ranging investigation into the extent of needs and plans and will compile a budget for the solution thereof.

Prof. Teuns Verschoor, Vice-Rector: Academic Operations, and the deans had a meeting yesterday to discuss problems and possible solutions around the power shedding in eg. computer rooms, during evening lectures, and practical classes.

Options may include eg. alternative time slots (eg. weekends) or alternative halls (eg. at the Vista Campus) for evening lectures which are affected by power shedding, or adjusted teaching methods.

Staff is requested not to install their own power generators under any circumstances. It can be very dangerous when such apparatus are linked to a building’s electrical system. The safety of staff and students and the risks of fire or injuries must also be the highest priority under all circumstances.

The Department of Physical Resources is also in the process of investigating options such as smaller power generators or ‘UPS’ apparatus as part of a broader evaluation of needs and potential solutions.

Exco wants to ensure all staff and students that this matter is receiving urgent attention and will keep on receiving it.

If there are any practical solutions about dealing with the power shedding (such as alternative ways of working) you are invited to send an e-mail to: lightsout@ufs.ac.za  

 

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