Browsing School of Chemistry and Physics by Title
Now showing items 688-700 of 700
-
Ultra low frequency (ULF) waves observed at mid to low latitudes during daytime using low Earth orbit (LEO) satellite and ground-based data.
(2011)The launch of German geoscience satellite CHAMP inspired the increased interest in the study of ultra low frequency waves. In this work data from low Earth orbiting (LEO) German CHAMP satellite and South African ground-based ... -
Ultrasonic-accelerated rapid protocol for the green synthesis of heterocyclics and aromatic compounds.
(2015)Abstract available in PDF file. -
Ultrastabilized boranes : a study into the synthesis, structure and reactivities of heterosubstituted organoboranes.
(2011)Three heterosubstituted boranes were successfully synthesized from the corresponding amines and borane dimethyl sulfide (BH3·DMS) in high yields, and were noted to be significantly more stable than the analogous ... -
Understanding the reactivity of ruthenium (II) complexes kinetics and mechanistic studies.
(2019)Abstract available in pdf. -
The use of ephedrine and camphor in asymmetric Diels-Alder reactions.
(1997)Due to the ever increasing demand for the production of enantiopure drugs and biologically active compounds, the study of asymmetric synthesis and the production of more efficient and cost effective methods of obtaining ... -
The use of hydroamination in the attempted synthesis of ant alkaloid 223H (xenovenine).
(2008)The ability to construct C-N bonds is of great importance to organic chemists as exemplified by the vast number of natural products, pharmaceutical agents and fine chemicals that contain such linkages. An atom efficient ... -
Vacuum vessels in tension.
(1999)Tensional Vacuum Vessels (TVV) are vessels constructed such that the walls are placed in tension rather than in compression as is the case with conventional vacuum vessels. TVVs have the advantage of being cost-effective, light ... -
Velocity, vorticity and turbulence measurements in the surf zone.
(1999)The coastal regions of the world play a significant role with regards to social and economic development, and with the ever increasing human activities along the coast, it has become necessary to understand and protect ... -
The war against pain : the design, synthesis and testing of potential COX-2 selective inhibitors.
(2014)Much research has focused on the inhibition of the cyclooxygenase (COX) enzyme as this protein is responsible for the first step in the pain pathway in the conversion of arachidonic acid into prostaglandins and thromboxanes. ... -
Waste minimisation at an air-conditioning company.
(2003)Waste minimisation involves reducing waste (emissions, effluent, solid waste) in companies, at source. v 7, 8 Its benefits include cost savings, environmental improvement, increased throughput and risk and liability ... -
Wind tunnel simulations to detect and quantify the turbulent effects of a propagating he-ne laser beam in air.
(2016)Abstract available in PDF file. -
X-ray crystallographic study of a trinuclear ruthenium organo-metallic complex.
(1984)The crystal structure of Ru₃ (C0)₁₀(C₆H₅)₂PN(C₂H₅) P(C₆H₅)₂ (RUC)PNP) has been determined by single crystal X-ray analysis. The crystals are tri-- clinic with space group PĪ. The unit cell of dimensions a = 14,732; b = ...