Search Results - "Cloete, H"

A baseline assessment of the photosynthetic potential of Welwitschia mirabilis using the JIP-test for monitoring and conservation purposes by Berner, J.M., Cloete, H., Shuuya, T.

“…Background: Welwitschia mirabilis is highly specialised to survive the harsh climate of the Namib Desert. Changes in land use, such as the expansion of mining…”
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Analysis of High Density Regional Geochemical Soil Samples at the Council for Geoscience (South Africa): The Importance of Quality Control Measures by Maritz, Hilde, Cloete, H. C. C. (Corlien), Elsenbroek, Jacobus H.

“…The Council for Geoscience (CGS, South Africa) has a statutory mandate to carry out regional geochemical mapping in South Africa that needs to be rapidly and…”
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Physical and numerical modelling of a four-strand steelmaking tundish using flow analysis of different configurations by Cloete, J H, Akdogan, G, Bradshaw, S M, Chibwe, D K

“…Modern tundishes have evolved as vessels to serve as the final step in refining of molten steel by removing inclusions and promoting thermochemical…”
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Scattering and absorption by thin metal wires in rectangular waveguide-FDTD simulation and physical experiments by Bingle, M., Davidson, D.B., Cloete, J.H.

“…The high-frequency internal impedance model of a round ohmic conductor is incorporated into the subcell thin-wire formulation of the finite-difference…”
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Ferritin assay performed on the Technicon Immuno 1 analyser using serum and plasma samples by Cloete, H., Kleinhans, W., Mansvelt, E. P. G.

“…Summary Ferritin assays were performed using both serum and plasma samples on the Bayer Technicon Immuno 1 Analyser and their ferritin test kit as only data…”
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Electric screen Jauman absorber design algorithms by Du Toit, L.J., Cloete, J.H.

“…The electric screen Jauman absorber is a stratified cascade of dielectric spacers, interlaced with resistive sheets, which is effective in reducing specular…”
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Remotely sensing the thickness of the Bushveld Complex UG2 platinum reef using borehole radar by Simmat, C M, Herselman, P Le R, Rütschlin, M, Mason, I M, Cloete, J H

“…The planar, 80 cm thick, lossy dielectric reefs of the Bushveld are embedded in rocks that are almost transparent at ground penetrating radar frequencies of…”
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The Effect of Conduction on VHF Radar Images Shot in Water-Filled Boreholes by Mason, I.M., Bray, A.J., Sindle, T.G., Simmat, C.M., Cloete, J.H.

“…A downhole digital memory-logging pulsed borehole radar transceiver operating in the 10-125-MHz band was run repeatedly down two 1.25-km-deep, uncased,…”
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The Role of Chirality and Resonance in Synthetic Microwave Absorbers by Cloete, Johannes H., Bingle, Marianne, Davidson, David B.

“…Microwave absorption by a lossy dielectric material containing thin metal wires is considered. The wires are bent to create either chiral, non-chiral or…”
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Geochemical and stable isotope patterns in altered volcaniclastic and intrusive rocks of the Kruidfontein carbonatite complex, South Africa by Schürmann, L.W., Horstmann, U.E., Cloete, H.C.C.

“…The inner zone of the Kruidfontein Complex consists largely of carbonatitic volcaniclastic breccia with interbedded, massive to well-bedded, tuffaceous…”
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Radio frequency coupling between an antenna and two unshielded parallel wires above a metal sheet-measurement precautions by Becker, L.H., Cloete, J.H., Reader, H.C.

“…An unshielded 1 m transmission line, made of two parallel wires suspended 0.1 m above a plane metal sheet, is illuminated in the VHF and UHF bands by a…”
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The radio frequency dielectric properties of the stratified UG1–UG2 geological unit in the Bushveld Complex by Rütschlin, Marc, Cloete, Johannes H., Mason, Iain M., Palmer, Keith D.

“…A new measurement technique enables the complex dielectric properties of the geological strata comprising the UG1–UG2 (Upper Group 1–Upper Group 2) unit of the…”
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S-parameter measurements yielding the characteristic matrices of multiconductor transmission lines by van der Merwe, J., Reader, H.C., Cloete, J.H.

“…A frequency-domain method is presented, which yields accurate characteristic matrices of uniform multiconductor transmission lines (MTLs). It uses simple…”
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The Resonant Frequency of Rectangular Interdigital Filter Elements by Cloete, J.H.

“…A procedure is given for the computation of the resonant frequency of loosely coupled interdigital resonators with rectangular cross section. The procedure is…”
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Rectangular Bars Coupled Through a Finite-Thickness Slot by Cloete, J.H.

“…A rigorous new solution, based on fringing capacitances and conformal mapping, is presented for the coupling problem in the parallel-coupled TEM…”
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A Transition from Rectangular to Nonradiating Dielectric Waveguide (Short Paper) by Malherbe, J.A.G., Cloete, J.H., Losch, I.E.

“…A transition between standard X-band waveguide and non-radiating dielectric (NRD) waveguide is described. It consists of a transition from air-filled…”
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Folic acid and vitamin B12 status of vervet monkeys used for nutritional research by Venter, F.S, Cloete, H, Seier, J.V, Faber, M, Fincham, J.E

“…Plasma and red blood cell (RBC) folic acid levels, as well as plasma vitamin B12 levels were determined in Vervet monkeys (Cercopithecus aethiops). All the…”
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How much energy can optimal control of domestic water heating save? by Booysen, M.J., Engelbrecht, J.A.A., Ritchie, M.J., Apperley, M., Cloete, A.H.

“…Scheduled control of domestic electric water heaters, designed to cut energy use while minimising the impact on users' comfort and convenience, has been fairly…”
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Transients on multiconductor transmission lines above dissipative earth-numerical simulation and measurement by van der Merwe, J., Cloete, J.H., Reader, H.C.

“…A finite-difference time-domain (FDTD) analysis is presented to simulate, up to the high-frequency regime, transients on multiconductor transmission lines…”
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The electric quadrupole contribution to the circular birefringence of nonmagnetic anisotropic chiral media: a circular waveguide experiment by Theron, I.P., Cloete, J.H.

“…Constitutive relations which include electric quadrupole terms, in addition to electric and magnetic dipole terms, are used to describe the "optical activity",…”
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