Latest News Archive

Please select Category, Year, and then Month to display items
Years
2019 2020 2021 2024
Previous Archive
29 July 2019 | Story Leonie Bolleurs
Dr Martin Clark
Dr Martin Clark, the founder of the MAGIC (Multi-purpose Aerial Geological Image Classification) initiative. MAGIC can obtain geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes.

Mining has historically been described as a boom-and-bust industry, where fluctuations in mineral prices could result in extreme success or bankruptcy. Successful mining companies closely monitor assets/expenditures, risks, and other parameters associated with their business to best ensure their longevity. In most mineral industries, there are a few competitors that dominate the delivery of a mineral resource. As a result, technological development, along with other factors, are critical to ensure that these companies’ business remains viable and protected.

This is according to post-doctoral fellow in the Department of Geology, Dr Martin Clark.

Drone technology: better, faster, safer

He says technological development in mining generally translates to how a company can extract a resource from the ground better, faster, and safer. 

Dr Clark believes the rapid development of drone technology represents a shift in the toolbox that mining companies can employ.

“Drones can collect a great deal of data randomly over vast or small areas within hours, historically accomplished by mapping campaigns which can last months to years. Drones can also collect data in areas which are difficult and dangerous for humans to get to. These include cliff faces or rock walls that are difficult and dangerous to get close to, as well as stretches of land where dense vegetation, inaccessible terrain, and even atmospheric dangers become factors which reduce or modify the scope of exploration work,” he said. 

Expanding application of drones

Dr Clark’s work specifically focuses on expanding the applications for which drones are used. “I assess what and how good the imaging capabilities of drones are, use the imagery to generate 3-D models to drive scientific observation, and yield results which can help companies to extract resources. This initiative is called MAGIC (Multi-purpose Aerial Geological Image Classification),” he said. 



“MAGIC aims to collect geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes,” he added.

Dr Clark is not only the founder of MAGIC; he also drives multiple aspects of the initiative including education, research, and business development. 

In 2013, when he was busy with his doctorate, there was already a spark of interest in using drones to address geological questions. At that time, Dr Clark was working with remotely sensed high-resolution LiDAR imagery to better understand geological structures at the Sudbury Mining Camp in Canada. The interest became a reality in 2018, when he applied this initiative during his post-doctoral fellowship at the UFS.

Now and the future

“At present, there are no direct mining projects underway, but projects are expected to begin in 2020. Drone operation and image-analysis techniques are currently being refined for industry,” he said. 

Besides his work with drones, Dr Clark also work in the fields of structural geology, remote sensing, and geospatial data analysis.  

News Archive

Care centre goes high-tech to help sexual abuse victims
2016-11-25

Description: Colposcope Tags: Colposcope

The colposcope, donated by the Discovery Fund,
will be used during gynaecological examinations
to detect any irregularities.
Photo: Supplied

Rape is one of South Africa’s most pressing social problems. Rape levels in the country are often discussed and reported on, but it does not deter perpetrators from this behaviour. According to Africa Check, of the more than 42 000 rape cases reported in 2015, 15 790 were child rape cases.

In an effort to assist victims of sexual assault and rape, the University of the Free State (UFS) Department of Family Medicine adopted the Tshepong Thuthuzela Care Centre, under the leadership of UFS lecturer Dr Mariaan Kotze.

The Discovery Fund donated a colposcope to Tshepong Thuthuzela Care Centre, an instrument that works with the help of a bright light and which is used to examine victims of abuse. It has also become a standard of good practice in the assessment of child abuse worldwide. According to Dr Kotze, the new instrument will also be used for training health practitioners by rendering clinical forensic services to abuse victims.

Managing complex issues

The care centre works with between 80 and 120 victims of rape each month, a third of whom are children under 14 years of age. According to Dr Kotze, the management of child sexual abuse victims is more complex than with adults; as there is a higher chance of missing or over-diagnosing abnormalities. Also, she says, the examination process is often observed by a group of healthcare practitioners, an experience which is often intrusive and intimidating for the child. With the colposcope, the timeframe of the examination is shortened, and can be captured and viewed in real time, without the victim being present.

Best care for victims

The colposcope is a magnifier and light source used during gynaecological examinations. It is instrumental in providing the best care to victims of sexual abuse, and helps diagnose and assist in the treatment of cases of abuse. Its ability to capture and review images at the time of examination allows for retrospective research, and improves the ability of expert witnesses in court cases.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept