First report of Botrytis cinerea causing flower blight on macadamia in South Africa
Jami, Fahimeh, Duma, Sanelisiwe, Fourie, Gerda, Botha, Gerhard, Schoeman, Maritha
Published in Journal of phytopathology (01.05.2024)
Published in Journal of phytopathology (01.05.2024)
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Journal Article
Continuous Event-Based Harmonic Impedance Assessment Using Online Measurements
Serfontein, Duan, Rens, Johan, Botha, Gerhard, Desmet, Jan
Published in IEEE transactions on instrumentation and measurement (01.10.2016)
Published in IEEE transactions on instrumentation and measurement (01.10.2016)
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Journal Article
Modern and prospective technologies for weather modification activities: A first demonstration of integrating autonomous uncrewed aircraft systems
DeFelice, T.P., Axisa, D., Bird, John J., Hirst, C. Alexander, Frew, Eric W., Burger, R.P., Baumgardner, D., Botha, Gerhard, Havenga, Henno, Breed, Dan, Bornstein, S., Choate, C., Gomez-Faulk, Ceu, Rhodes, Michael
Published in Atmospheric research (15.07.2023)
Published in Atmospheric research (15.07.2023)
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Journal Article
Black economic empowerment ownership initiatives: a Johannesburg Stock Exchange perspective
Sartorius, Kurt, Botha, Gerhard
Published in Development southern Africa (Sandton, South Africa) (01.10.2008)
Published in Development southern Africa (Sandton, South Africa) (01.10.2008)
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Journal Article
DC Power Quality Emulator
van Vuuren, Riekert Jansen, Botha, Gerhard
Published in 2020 International SAUPEC/RobMech/PRASA Conference (01.01.2020)
Published in 2020 International SAUPEC/RobMech/PRASA Conference (01.01.2020)
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Conference Proceeding
Harmonic impedance assessment using prevailing phasors
Serfontein, Duan, Rens, Johan, Botha, Gerhard
Published in 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) (01.05.2018)
Published in 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) (01.05.2018)
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Conference Proceeding
Evaluation of Harmonic Distortion from Multiple Renewable Sources at a Distribution Substation
Peterson, Brandon, Rens, Johan, Botha, Gerhard, Meyer, Jan, Desmet, Jan
Published in 2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2017)
Published in 2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2017)
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Conference Proceeding
Measurement Uncertainty of Current Harmonics During the Assessment of Compliance to Grid Code Requirements
Marais, Zander, Rens, Johan, Peterson, Brandon, Botha, Gerhard
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
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Conference Proceeding
On the Remote Calibration of Voltage Transformers: Validation of Opportunity
Rens, Sane, Rens, Johan, Holm, Johann, Botha, Gerhard, Desmet, Jan
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
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Conference Proceeding
On the assessment of harmonic emission in distribution networks: Opportunity for the prevailing harmonic phase angle
Peterson, Brandon, Rens, Johan, Meyer, Jan, Botha, Gerhard, Desmet, Jan
Published in 2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2016)
Published in 2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2016)
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Conference Proceeding
The Improvement of System Damping by Grid Integration of PV Energy Sources
Hattingh, Jan-Hendrik, Rens, Johan, Botha, Gerhard
Published in 2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2017)
Published in 2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2017)
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Conference Proceeding
Improved event based method for harmonic impedance assessment
Serfontein, Duan, Rens, Johan, Botha, Gerhard, Desmet, Jan
Published in 2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2016)
Published in 2016 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2016)
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Conference Proceeding
A discriminative approach to harmonic emission assessment
Peterson, Brandon, Rens, Johan, Botha, Gerhard, Desmet, Jan
Published in 2015 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2015)
Published in 2015 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2015)
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Conference Proceeding
Impact of Aggregation Interval on Harmonic Phase Angle Measurements
Peterson, Brandon, Blanco, Ana Maria, Rens, Johan, Meyer, Jan, Botha, Gerhard, Desmet, Jan
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
Published in 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2018)
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Conference Proceeding
Continuous harmonic impedance assessment using online measurements
Serfontein, Duan, Rens, Johan, Botha, Gerhard, Desmet, Jan
Published in 2015 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2015)
Published in 2015 IEEE International Workshop on Applied Measurements for Power Systems (AMPS) (01.09.2015)
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Conference Proceeding
VEHICLE MONITORING
DU RAND, DEON, VAN DER WESTHUIZEN, JACO, BOTHA, GERHARD, MOSTERT, JOHANNES, CHRISTOFFEL, LE ROUX, JACO, KRIEL, JOSEPH, JOHN
Year of Publication 21.11.2012
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Year of Publication 21.11.2012
Patent
VEHICLE MONITORING
DU RAND, DEON, VAN DER WESTHUIZEN, JACO, BOTHA, GERHARD, MOSTERT, JOHANNES, CHRISTOFFEL, LE ROUX, JACO, KRIEL, JOSEPH, JOHN
Year of Publication 18.01.2012
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Year of Publication 18.01.2012
Patent