Outcomes

A. Research papers in refereed journals

1. M M Ali and L Masinga. ¡°A nonlinear optimization model for optimal order quantities with stochastic demand rate and price change.¡± Journal of Industrial and Management Optimization, 3 (2007), 139-154.
   
   
2. J P F Charpin, T G Myers, M Lombe and P de Hill. ¡°Transportation of a water based slurry in an open furrow, launder or stream.¡± Journal of the South African Institute of Mining and Metallurgy, 107 (2007), 95-98.
   
   
3. A D Fitt, D P Mason and E A Moss. ¡°Group invariant solution for a pre-existing fluid-driven fracture in impermeable rock¡±. ZAMP (Journal of Applied Mathematics and Physics), 58 (2007), 1049-1067.
   
   
4. D P Mason and T R Stacey. "Support to rock excavations provided by sprayed liners." International Journal of Rock Mechanics and Mining Sciences, 45 (2008), 773-788.
   
   
5. TG Myers and JPF Charpin. "Modelling the temperature, maturity and moisture content in a drying concrete block." Mathematics-in-Industry Case Studies Journal, 1 (2008), 24-48
   
   
6. N Fowkes, J A T de Freitas and T R Stacey. "Crack repair using an elastic filler". Journal of the Mechanics and Physics of Solids, 56 (2008), 2749 - 2758.
   
   
7. DP Mason and H Abelman. "Support provided to rock excavations by a system of two liners." International Journal of Rock Mechanics and Mining Sciences, 46 (2009), 1197-1205.
   
   
8. TG Myers, ND Fowkes and Y Ballim. "Modelling the cooling of concrete by piped water." Journal of Engineering Mechanics, 135 (2009)1375 - 1383.
   
   
9. N Fowkes and AP Basson. "Piped water cooling of concrete: an exercise in scaling." Journal of Engineering Education, 15 (2009), 51-57.
   
   
10. AG Fareo and DP Mason. "Group invariant solutions for a pre-existing fluid driven fracture in permeable rock". Nonlinear Analysis: Real World Applications. 12 (2011), 767 - 779. 
    
    
11. H Ockendon, D P Mason, D Fanucchi, T La Foy, T. Oliphant and M. Khalique. 'A mathematical model of a road block'. Mathematics-in-Industry Case Studies. 2 (2010), 134 - 154.
12. M Anthonyrajah and D P Mason. 'Conservation laws and invariant solutions in the Fanno model for turbulent compressible flow.' Mathematical and Computational Applications. 15 (2010), 529 - 542. 
    
     
13. T G Myers and S L Mitchell. 'A Mathematical analysis of the motion of an in-flight soccer ball.' Sports Engineering DOI 10.1007/s12283-012-0105-8 
    
     
14. A Hutchinson. "Controlled roof collapse during secondary mining in coal mines". International Journal of Differentail Equations, 21 pages, DOI 10.1155/2012/806078
    
     
15. Anthonyrajah M, Mason DP and Fareo AG. "Propogation of a pre-existing turbulent fluid fracture". International Journal of Non-linear Mechanics, 54 (2013, 105-114
    
     
16. Fareo AG and Mason DP. "Group invariant solutions for a pre-existing fracture driven by a power-law fluid in impermeable rock". Communications in Nonlinear Science and Numerical Simulation, 18 (2013), 3298 - 3316.  
    
     
17. Please C, Mason DP, Khalique CM, Ngnotchouye JMT, Hutchinson AJ, van der Merwe N and Yilmaz H. "Fracturing of an Euler-Bernoulli beam in coal mine pillar extraction." International Journal of Rock Mechanics and Mining Sciences, 64 (2013), 132- 138. 
    
     
18. Pedro JO, Dangor M, Dahunsi OA and Ali MM. "Differential evolution-based PID control of nonlinear full-car electrohydraulic suspensions". Mathematical Problems in Engineering, Volume 2013, Article ID261582, 13 pages, DOI 10.1155/2013/261582.
    
    

B. Refereed conference proceedings 

1. M Mitchley, M Sears and S Damelin. "Target detecion in hyperspectral mineral data using wavelet analysis". Proceedings of IEEE IGRASS 2009. Accepted. 3182 Final.pdf.
2. L du Plessis, S Damelin and M Sears. "Reducing the dimensionality of hyperspectral data using diffusion maps". Proceedings of IEEE IGRASS 2009. Accepted. 3194 Final.pdf.
3. C Musingwini, M M Ali and T Dikgale. "A linear programming and stochastic analysis of mining replacement rate for typical Bushveld Complex platinum reef conventional mining under variable geological losses." Proceedings of the Eighteenth International Symposium on Mine Planning and Equipment Selection and Eleventh International Symposium on Environmental Issues and Waste Management in Energy and Mineral Production, Banff, Canada, 16 - 19 November, 2009, pp 551 - 565. MPES_2009_Paper_V1.pdf. 
4. J Pedro, M Dangor, O Dahunsi and MM Ali. "DE-based PID control of full-car-nonlinear servo-hydraulic suspension systems". Proceedings of the IEE Africon 2013 Conference, Mauritius, September 2013. Accepted.

C. Proceedings of MISG

Each report is refereed by two independent referees

Proceedings of the Mathematics in Industry Study Group 2004

Proceedings of the Mathematics in Industry Study Group 2005

Proceedings of the Mathematics in Industry Study Group 2006

Proceedings of the Mathematics in Industry Study Group 2007

Proceedings of the Mathematics in Industry Study Group 2008

Proceedings of the Mathematics in Industry Study Group 2009

Proceedings of the Mathematics in Industry Study Group 2010

Proceedings of the Mathematics in Industry Study Group 2011

Proceedings of the Mathematics in Industry Study Group 2012 

Proceedings of the Mathematics in Industry Study Group 2013 

D. Masters students completed

1. Mark C Jeoffreys
   University: University of the Witwatersrand
   Date: November 2006
   Dissertation: Subspace tracking, discrimination of unexploded ordinances (UXO) in airborne magnetic field gradients
   Supervisor: Dr N Pendock
   
   
2. Gideon Fareo
   University: University of the Witwatersrand
   Date: June 2008
   Dissertation: Group invariant solutions for a pre-existing fluid-driven fracture in permeable rock
   Supervisor: Prof D P Mason
    
3. Marlyn Anthonyrajah
   University: University of the Witwatersrand 
   Date: July 2011
   Dissertation: Turbulent flow in channels and fractures:  conservation laws and Lie group analysis
   Supervisor: Prof D P Mason
    
4. Despina Newman
   University: University of the Witwatersrand 
   Date: May 2016
   Dissertation: Turbulent hydraulic fracturing described by Prandtl's mixing length
   Supervisor: Prof D P Mason
     

E. Doctoral students completed

1. Gideo Fareo
   University: University of the Witwatersrand, Johannesburg
   Date: January 2013
   Thesis: Group invariant solutions for a pre-existing fracture driven by a non-Newtonian fluid in permeable and impermeable rock
   Supervisor: Prof D P Mason 
   
   

F. Feedback 

1. Columbus Stainless Steel
   
   Dear Professor Ali,
   I would like to thank you for the Matlab application forDate the Cold Mills scheduling that you developed. The program is working well and provides us with a more scientific method to schedule the mills. This program will form the basis for our drive to increase the throughput at the mills.
   
   Regards
   J KOTZE
   Cold Mills Process Development Manager
   Cold Processes
   
   
2. CaterPlus
   
   Dear Gerhard
   
   Thank you kindly for your introduction to the MISG. The study group highlighted several interesting (and valuable) aspects for us, aspects that will reshape our business in the future. I have made several contacts during the study group, both domestic and international, and I shall continue to communicate with these people for some time to come. It was an extremely valuable exercise and we will strongly consider participating again in future, because of the differing insights the forum provide into our day to day operations.
   
   I look forward to discussing the MISG with you in greater detail in the foreseeable future.
   
   I truly apologies for the delay in my reply to you.
   Yours faithfully
   Martin Engelbrecht
   CaterPlus
   
   
3. NIssan South Africa
   
   Good morning Pekka
   
   I would like to thank you for giving me the opportunity to join you guys at the Wits seminar / Workshop. I was fascinated by the different subjects being dealt with, and enjoued the exposure to different problems. At least we know now that we are not the only industry experiencing difficult problems. I sepnt a good part of the weekend discussing the experience with friends. Oh and before I forget, well done on moderating a possible solution for our sequencing concerns.
   
   Regards
   Billy Hunter
   V-Pilot (Manufacting)
   Corporate Planning
   
   
4. Platinum Mining
   
   The selection of a mining replacement rate has both economic and operational implications on platinum mines.  The selection has not been previously approached from a scientific basis but has rather relied on rule-of-thumb.  The Study Group was able to decompose the problem into a two-stage LP solution followed by a simulation component to evaluate the impact of variable geology on the optimal solution.  The Group is still working on the simulation part.  The solution will definitely provide an insight to mine planners on how to optimise the mining replacement rate.
   
   Regards
   
   Cuthbert Musingwini
   School of Mining Engineering
   University of the Witwatersrand
   
   
5. Robot Motion
   
   I really enjoyed participating in MISGSA 2009.  I was impressed by the work done by our student team.  I hope to follow up some of the work in honours projects co-supervised in the department.
   
   Regards
   
   Simukai Utete
   CSIR Mobile Intelligent Autonomous Systems
   Pretoria
   
    
6. Zyelabs: http://zyelabs.net
   
   The amount of effor put into our problem: Detecting mobile devices, is immense. The skill with which each part of the topic has been broken down is of a high standard that shows elevated intellectual capability in basic, strategic and applied research.
   
   I would like to take this opportunity to thank everyone who has put effort in putting this event together and making it a success.
   
   Moreover, I am indebted to my team members for exerting themselves in their work. I have grown immensely.
   
   Well done! 
   Ms Rumbidzai Mukungunugwa