 Logical thinking dispels myths
by Dr. Kelvin Kemm, Stratek Proper thinking is hard work, it takes real effort. A question I want to pose, yet again, is to ask: Could it be true that carbon dioxide gas produced by mankind is causing the whole earth to heat up? The physics of this is complex... ( more) |
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Six new SETAs to be formed
by Dr. Blade Nzimande
Today we announce three major developments: the public release of the proposed new SETA landscape; the release of the draft framework for the National Skills Development Strategy 2011/12 to 2015/16; steps to deal with non-performing SETAs... ( more) |
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Schneider Electric SA boosts BEE deal with CIH
Information from Schneider Electric
Schneider Electric South Africa has reinforced its black economic empowerment (BEE) deal with leading empowerment concern, Community Investment Holdings (CIH). The two companies have achieved great results in South Africa's energy management sector... ( more) |
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How to transform your business - get your black belt in "Six Sigma"
by EE Publishers staff writer
Book Review: The Six Sigma Way by PS Pand, RP Neuman and RR Cavanagh; Part 1 of a four-part series. "The probability is that Jeff [current GE CEO] Immelt's successor will be a Six Sigma Black Belt"... ( more) |
The pros and cons of OLEDs - organic light emitting diodes
by EE Publishers staff writer There is a growing interest in OLEDs (organic light emitting diodes) as an alternative to LEDs. A semiconductor LED is more or less a point light source whereas OLEDs can be constructed on polymer films, opening up possibilities for panels, wallpaper or even clothing that emits light... ( more) |
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Inline colour measurement in production environments
by Marcel Janssen, Admesy, and Roland Kuijvenhoven, Ocean Optics
With inline colour measurement many factors besides the measurement equipment play a role in obtaining the required results. This article shows some items to keep in mind and check during system implementation in production environments... ( more) |
Are LEDs an efficient light source for high mast lighting?
In an article published in Vector, Feb 2010 p. 26, Goldwyn Lighting claimed 80% energy saving and higher lighting levels for high mast lighting as a result of converting conventional high mast lighting systems to LED floodlights... (more) |
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Response from Rammy Naidoo, Goldwyn Lighting
by Rammy Naidoo, Goldwyn Lighting
The conclusion reached by Mr. J Schleritzko leads us to believe that the alleged visit was either carried out at a wrong site or there was a palpable error of judgement or omission in his observation... ( more) |
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Building a reliable VFD system
by Brian Shuman, Belden
VFDs offer many benefits; principal among them the ability to save a substantial amount of energy during motor operation. The way in which VFD based systems are constructed and operated will have an impact on both the longevity and reliability of all the components of the system, as well as nearby or adjacent systems... ( more) |
New directions for the control interface
by EE Publishers staff writer
Recent research shows new ways in which people can interface with electrical or electronic systems. Biomedical engineers are even working to improve what are known as brain-computer interface systems... ( more) |
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Tubular products plant remains a global player
Information from Wonderware
ArcelorMittal's Tubular Products division makes seamless pipes for oil, gas and engineering companies worldwide. Its Vereeniging plant had 12 weeks to upgrade its production facilities to qualify for new quality criteria from the American Petroleum Institute (API)... ( more) |
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Low-hanging power line hazards
by EE Publishers staff writer
It seems obvious that, working on a site, contractors need to check that cables are not live. But other supply cables adjacent to or en route to the work location - a common problem in rural areas - make this complicated... ( more) |
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New markings for Ex equipment
by Dr. Johannes Auret, Explolabs
Explosion-protected (Ex) equipment must conform to many standards and regulations. One of these is the way the equipment is marked. it is compulsory to mark certain information on such equipment. This is for a number of reasons... ( more) |
