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31 July 2018 Photo Leonie Bolleurs
Decor and building products showcased at BloemBuild Expo
Want to build your own home? On offer at this year’s BloemBuild Expo was something for everyone, from the prospective student who wants to study architecture, to property developers. Ilana Serfontein from Acorn Construction and Zack Wessels, one of the organisers of the event from the UFS Department of Architecture, contributed to the success of this annual event.
With the recent drought in many parts of South Africa, the theme for this year’s BloemBuild Expo was ‘How to survive the drought’, with much emphasis on energy-saving materials, grey-water systems and environmental-friendly products. Some presentations, supporting the theme, included talks on design for sustainability, nature-based solutions for drought conditions as well as the role of grey-water systems for food security.

The University of the Free State (UFS) was this year again the host of the Expo which provided a showcase for the latest décor trends and building products. The event that took place in the Callie Human Centre on the Bloemfontein Campus was presented by the South African Institute of Architects Free State Region in conjunction with University Estates and the Department of Architecture.

Students from the Department of Architecture exhibited their models and took first place in the Corobrik tower building challenge. Also from the Department of Architecture was a lecture by Kobus du Preez on the ‘Architectural Highlights of Bloemfontein’. Jan Ras from the same department delivered a lecture: ‘To architect or not to architect – how to choose your architect’. 

Ras said the relationship between homeowner and architect stretched over several months: from the first meeting until the key is put in the front door. He said he believed professional architects were there to make dreams come true. 

Visitors could enjoy, view and take part in the Expo which offered something for everyone including academics, members of the community, the industry and professionals. 

This year’s event also saw a big colouring-in competition in which members of the public took part in

News Archive

Heart-valve studies receive international recognition
2017-07-11

 Description: Heart-valve studies Tags: Heart-valve studies  

Prof Francis Smit, Head of the Department of
Cardiothoracic Surgery at the UFS, and Manager of the
Robert WM Frater Cardiovascular Research Centre, with
Kyle Davis, Mechanical Engineer at the centre.
Photo: Rulanzen Martin

Three heart-valve studies which have been developed at the Robert WM Frater Cardiovascular Research Centre at the School of Medicine at the University of the Free State (UFS) were recently presented in Monte Carlo at the conference of the prestigious global Heart Valve Society (HVS).

These studies are all headed by Prof Francis Smit, Head of the Department of Cardiothoracic Surgery at the UFS, and Manager of the Robert WM Frater Cardiovascular Research Centre.
Prof Smit says the HVS is a combination of the former heart-valve societies of Europe and the US. “Studies on heart-valve disease, heart-valve-related products and operations, as well as the design and development of new valves were presented. There are both clinical and development divisions.

He says the study in which the hemodynamics of their redesigned mechanical poppet valve was compared to a commercial bi-leaflet mechanical heart valve, was named as the best poster presentation in the experimental valve development and numerical flow dynamics division. The study, which was presented by Kyle Davis, mechanical engineer at the centre, competed against some of the best heart-valve research units in the world.

The redesigned valve, based on the 1960s Cape Town poppet valve, has the potential to provide a low-cost solution for mechanical heart-valve replacement. It is possible to produce the titanium ring with 3-D printers and is, together with the silicon poppet valve, extremely inexpensive compared to current mechanical valve-manufacturing processes.
The advantages of this valve over current mechanical valves is that, due to the effective and laminar flow characteristics, as well as the simple locking mechanisms, there is a reduced chance of valve thrombosis, and the need for anti-clotting drugs is therefore limited.

It was also confirmed that the new valve more than meets the published FDA (Federal Drug Agency) requirements, which determine the minimum standards of valves for human use in the US.

The redesigned valve also has a very low platelet activation impact, which is responsible for platelet thrombosis and leads to valve thrombosis or strokes. This valve is another heart-valve project by the centre, which is also in the process of evaluating a tri-leaflet polyurethane valve developed by them.


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