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Storage root formation at individual nodes of the sweet potato (Ipomoea batatas (L.) Lam)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.P. du Plooy --- , Republic of South Africa A.A. van den Berg --- , Republic of South Africa P.S. Hammes --- Department of Plant Production, Republic of South Africa L.C. Holtzhausen --- Department of Plant Production, Republic of South AfricaLittle or no information is available on the contribution of individual subterranean nodes to the storage root formation in sweet potatoes. Therefore, two field trials were conducted where apical vine cuttings of various cultivars were planted vertically or horizontally, with... -
Alternative method for the identification of critical nodes leading to voltage instability in a power system
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Isaiah G. Adebayo --- Department of Electrical Engineering, South Africa Adisa A. Jimoh --- Department of Electrical Engineering, South Africa Adedayo A. Yusuff --- Department of Electrical and Mining Engineering, South Africa Yanxia Sun --- Department of Electrical and Electronic Engineering Science, South AfricaThe introduction of new operation enhancement technologies plus increasing application of power electronics, coupled with the continuous increase in load demand, has increased the risk of power networks to voltage instability and susceptibility to voltage collapse. This frequent occurrence of... -
A novel approach for the identification of critical nodes and transmission lines for mitigating voltage instability in power networks
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Akintunde Samson Alayande --- Department of Electrical and Electronic Engineering Science, South Africa Nnamdi Nwulu --- Department of Electrical and Electronic Engineering Science, South AfricaVoltage collapse is a major issue combating the effectiveness and optimal operation of modern power systems in recent times. This is a great threat to the security and reliability of modern power systems and, in recent times, it has been...