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10 June 2024 | Story Precious Shamase | Photo Supplied
Prof Richard Ocaya
Prof Richard Ocaya, Associate Professor from the Physics Department.

Prof Richard Ocaya from the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) Qwaqwa  Campus has achieved a significant milestone with a newly patented invention. This patent, developed in collaboration with researchers from Turkey and Saudi Arabia, is the result of work that began in 2017, focusing on a special material known as graphitic carbon nitride.

This breakthrough in temperature measurement technology aligns perfectly with the university's Vision 130 commitment to innovation and addressing global challenges. The new device offers a unique solution to a longstanding issue in the field, providing accurate temperature measurements across an extremely wide range. Existing solutions often require multiple devices, leading to increased costs and reduced accuracy, but this invention simplifies the process.

The device, based on a combination of graphitic carbon nitride and silicon, can measure temperatures from -250°C to 250°C with exceptional consistency and linearity. This range and accuracy set it apart from current technologies, making it suitable for various applications, from standard temperature measurement to specialized settings involving extreme temperatures. It could be especially valuable in deep-space exploration, where equipment faces drastic temperature fluctuations.

The patent underscores the university's commitment to fostering collaborative research, a key aspect of Vision 130. Prof Ocaya attributes the success of the invention to the robust nature of the team, established in 2015. The team is now seeking to commercialize the technology by licensing it to a suitable partner, with organizations like NASA expected to show significant interest.

Prof Ocaya advises other academics considering patenting their inventions to ensure the patent solves a real problem uniquely and is based on sound principles. This makes the invention reproducible and protects it from being copied, assigning exclusive rights to the patent holder. Patenting allows for either manufacturing the devices or licensing them to third parties for royalties and profit. He notes that the main consideration is that the innovation must be practical and solve a specific problem in a novel and commercially viable way. He also acknowledges the challenge many academics face, as the "publish or perish" mentality often leads to choosing scientific articles over patents.

Despite securing the patent, Prof Ocaya and his team continue their research efforts, exploring new possibilities while balancing practical research with academic pursuits. He believes the invention will significantly impact the field of temperature measurement, being integrated into many new designs requiring such measurements.

The university proudly supports this innovative research and anticipates its real-world impact, furthering Vision 130's commitment to increasing UFS's research capacity and capability.

News Archive

The universal power of music and song to convey the unspeakable
2015-05-07

Philip Miller
Photo: Johan Roux

Spotlight photo: John Hodgkiss

Philip Miller, award-winning composer and sound artist, recently delivered the second instalment of the Vice-Chancellor’s Lecture Series on Trauma, Memory, and Representations of the Past on the Bloemfontein Campus. This lecture series forms part of a five-year research project led by Prof Pumla Gobodo-Madikizela. The series focuses on how the creative arts represent trauma and memory, and how these representations may facilitate the healing of historical wounds.

Disrupting the Silence: The Past and Transnational Memory
In Miller’s lecture, ‘Disrupting the Silence: The Past and Transnational Memory’, he discussed the creative process – and the far-researching effects – of his composition: ‘REwind: A Cantata for Voice, Tape and Testimony’. The production consists of 4 soloists, an 80- to 100-member choir, a string octet, combined with gripping projected images and audio of victims testifying during the Truth and Reconciliation (TRC) hearings.

While listening to those raw recordings, Miller would rewind continually and listen again. In between the sounds of the tape stretching and spooling, sighs, gulps for air, and moments when the speakers lost their speech, a hidden sound world revealed itself. And within these silences lay an entrenched trauma far more profound than the actual words spoken.

Communal remembering
When Miller asked Nomonde Calata how she felt about his using the recording of her heart-rending cry during her TRC testimony, her reply was poignant. For Calata, her cries – taken over by the voice of Sibongile Khumalo during the cantata – were a living memorial to her loving husband. “And it almost felt like a soothing balm to her traumatic loss,” Miller said.

“I believe that a collective body of people singing is a unique symbolic act of communal remembering. But more than that, it is a deep form of identification of our humanity, and allows for some form of catharsis for those testifiers who have attended the live performances. Just as a parent sings a lullaby to calm a crying child, the choir singing reaches those of us who continue to mourn.

“Music and song – and the arts in general – can convey the powerful stories of our nation without fearing to engage with the subject matter,” Miller said. “This I believe is the universal power of music and song: to convey a spiritual dimension to what perhaps is sometimes too graphic and painful to comprehend fully.”

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