Author:Van den Bergh, FransDate:Mar 2018The slanted-edge method of spatial frequency response (SFR) measurement is usually applied to grayscale images under the assumption that any distortion of the expected straight edge is negligible. By decoupling the edge orientation and position ...Read more
Author:Motlogeloa, O; Fitchett, JM; Sweijd, Neville ADate:Jan 2023The acute respiratory infectious disease season, or colloquially the “flu season”, is defined as the annually recurring period characterized by the prevalence of an outbreak of acute respiratory infectious diseases. It has been widely agreed ...Read more
Author:Abolnik, C; O'Kennedy, Martha M; Murphy, MA; Wandrag, DBRDate:Jun 2022Outbreaks caused by Goose/Guangdong H5 highly pathogenic avian influenza (HPAI)-lineage viruses continue to occur in unprecedented numbers throughout Eurasia, the Middle East and Africa, causing billions of dollars in economic losses and the ...Read more
Author:Maarsingh, B; Grobbelaar, SS; Uriona-Maldonado, M; Herselman, Martha EDate:Aug 2021Information and Communication Technologies for Development (ICT4D) projects aim to improve the living conditions of marginalized communities. However, ICT4D interventions have high failure rates. We draw on the Technological Innovation for ...Read more
Author:Lain, Elisabeth J; Smith, Marie EDate:Jan 2024A new age of satellite remote sensing is upon us. High-tech sensors capable of imaging the earth at over 100 spectral wavebands are now a reality. These sensors, known as hyperspectral radiometers, capture very fine spectral features of the ...Read more
Author:Malunga, MM; Cho, Moses A; Chirwa, PW; Yerokun, OADate:Aug 2021The pattern of Miombo woodland conversion to other land uses and the attendant impacts on vital Miombo ecosystems such as dambos is not well understood. Using the Copperbelt province of Zambia as a case study, we assessed the spatio-temporal ...Read more
Author:Swanepoel, Derick; Van den Bergh, FransDate:Mar 2017Earth observation data are typically compressed using general-purpose single-threaded compression algorithms that operate at a fraction of the bandwidth of modern storage and processing systems. We present evidence that recently developed ...Read more
Author:Mandree, PM; Thopil, GA; Ramchuran, Santosh ODate:Oct 2023Globally, greater than 30% of waste is disposed of in some form of landfill, and it is estimated that annual waste-related emissions will increase by up to 76% by 2050. Emissions arising from fossil fuel-derived products and waste disposal ...Read more
Author:Van den Bergh, FransDate:Jun 2019The slanted-edge method describes an algorithm for measuring the spatial frequency response (SFR) of digital imaging systems. The method can be applied to edges oriented at nearly any angle, but there are some angles that cause simplistic ...Read more
Author:Masindi, Vhahangwele; Mbhele, Nkhangweleni R; Foteinis, SpyrosDate:Apr 2023Herein, the alkaline supernatant of a struvite recovery system from municipal wastewater was successfully co-managed with acid mine drainage (AMD). Various ratios (v/v) of AMD to struvite supernatant were examined, and the quality of the ...Read more
Author:Mutanga, Shingirirai S; Ngungu, M; Tshililo, FP; Kaggwa, MDate:Feb 2021Background: Many countries in the world are still struggling to control COVID-19 pandemic. As of April 28, 2020, South Africa reported the highest number of COVID-19 cases in Sub- Sahara Africa. The country took aggressive steps to control ...Read more