Search Results - "de Beer, A.S."

Qualitative research in journalism: friend or foe? by De Beer, A.S.

“…Among communication researchers as well as journalists a growing scepticism and even disillusionment with regard to the validity, applicability and…”
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Identification of PLC Channel Noise from DC-to-DC Converters with Input Rectification by de Beer, A.S., Emleh, A., Ferreira, H.C.

“…Single phase rectifier electronics with DC-to-DC converters are commonly used on the low voltage supply network. Such devices (for example Light Emitting Diode…”
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Nuuskartering van Nederland deur Beeld en van Suid-Afrika deur Trouw: (Newsmapping of the Netherlands in Beeld and of South Africa in Trouw) by Coetzee, M, de Beer, A.S

“…The fall of communism and the end of apartheid brought about major changes on international political and socio-economical levels. It led to the change of…”
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Problematic concepts in the introduction of EMC by de Beer, A.S.

“…This paper deals with specific and difficult concepts when introducing EMC to engineers and technicians. It is based on the authors experience in presenting…”
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Structure for the introduction of EMC design by de Beer, A.S.

“…This paper gives an outline useful for introducing EMC (electromagnetic compatibility) design to first time students. It is based on the universal interference…”
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Factors Influencing Common Mode EMI Generation in Boost Converters by de Beer, A.S., Faul, K.

“…This paper gives three factors that govern the generation of Common Mode (CM) Electromagnetic Interference (EMI) in Boost Converters. They are the magnitude of…”
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A Practical Method to Identify Contributions of Harmonics in Power Systems by de Beer, A.S., Kasemuana, S., Pretorius, J.H.C.

“…This paper presents a practical method to quantify the contribution of harmonics between the utility and a customer at the point of common coupling (PCC). This…”
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Nuuskartering van Nederland deur Beeld en van Suid-Afrika deur Trouw : research section by Coetzee, M., De Beer, A.S.

“…The fall of communism and the end of apartheid brought about major changes on international political and socio-economical levels. It led to the change of…”
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Nuuskartering van Nederland deur Beeld en van Suid-Afrika deur Trouw: Newsmapping of the Netherlands in Beeld and of South Africa in Trouw by Coetzee, M., de Beer, A.S.

“…The fall of communism and the end of apartheid brought about major changes on international political and socio-economical levels. It led to the change of…”
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Contactless Power Line Communications at 2.45GHz by de Beer, A.S., Igboamalu, F.N., Sheri, A., Ferreira, H.C., Han Vinck, A.J.

“…In this paper it is shown how a power line can be used to conductively carry and re-radiate 2.45GHz Wi-Fi signals over a distance. This can be useful when a…”
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Leipzig : from Tobias Peucer's De Relationi-bus Novellis (1690) to Ecquid Novi (2000) by Schreiner, W.N., De Beer, A.S., Van Ryneveld, L.F.

“…This article deals with a discussion and analysis of the first English translation of the first doctoral dissertation on journalism, 'De relationibus…”
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In search of truth: The TRC and the South African press -a case study by de Beer, Arnold S, Fouché, Johan

“…The demise of apartheid and the first free democratic elections in 1994 ushered in a new epoch making era in South African history. This article deals with one…”
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The Potch vegetation management system:the influence on vegetation condition by Jordaan, F.P., Bosch, O.J.H., Postma, M., de Beer, A.S.

“…Over the years a number of vegetation management systems has been evaluated and recommended. The Potch system is also a management system which was…”
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Considerations in the design of high frequency, high power nonlinear magnetic components by de Beer, A.S., Ferreira, J.A., van Wyk, J.D.

“…It is shown that the reactive power rating and operating frequency of saturable magnetic components can be extended if the geometry is adjusted to accommodate…”
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Nonlinear resonant pole zero voltage switching in a self oscillating DC to DC converter with magnetic feedback by Ferreira, J.A., Van Wyk, J.D., De Beer, A.S.

“…The self-oscillating inverter with magnetic feedback has proven itself over the years as a simple and robust converter. The fixed-ratio DC-to-DC converter…”
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Influence of residual manure on selected nutrient elements and microbial composition of soil under long-term crop rotation by Belay, A, Claassens, A.S. (Pretoria Univ. (South Africa). Plant Production and Soil Science Dept.), Wehner, F.C, De Beer, J.M

“…A study was conducted on a long-term field experiment at the University of Pretoria, South Africa, that was established in 1939. The aim was to investigate the…”
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