Author:Ojijo, Vincent O; Sinha Ray, SuprakashDate:Feb 2018Polymer nanocomposites are a relatively new class of material containing components with at least one dimension less than 100 nm. This chapter provides an introduction to these polymer nanocomposites and their relationship to microcomposites. ...Read more
Author:Jeffrey, L; Henry, G; McGill, JDate:Jan 2015This chapter provides some basic geological and mining background information and sets the scene in terms of the key operational challenges experienced by local coal miners and the role that geophysics can play in addressing these challenges.Read more
Author:Fourie, S; Van Schoor, Michael; Vogt, D; van der Walt, J; Jikelo, A; Campbell, G; Du Plessis, ADate:Jan 2015This chapter introduces a range of geophysical methods that may be applicable to coal mining and exploration problems. The focus of these discussions is on emphasising the link between geology and physics – and how the different geophysical ...Read more
Author:Funke, Nicola S; Claassen, MariusDate:Apr 2017The specific mission supported by this Road Map is to unlock South Africa's maritime potential through research, development and innovation.Read more
Author:Cizek, J; Turpie, DWFDate:Mar 1985A staple length/ strength measuring instrument has been developed for the routine automatic measurement of the cross-sectional profile and length of a wool staple, the position and cross sectional area of its thinnest place, its tenacity and ...Read more
Author:Van Wyk, Llewellyn VDate:Aug 2010By recognising the specific environmental challenges facing South Africa, mindful of the government‘s commitment to reducing South Africa‘s Greenhouse gas emissions, and acknowledging the need to build social cohesion, the Green Building ...Read more
Author:Katima, JHY; Godfrey, Linda KDate:Jun 2018Africa is the world’s second largest continent after Asia, with a total surface area of 30,365,000 km2, including several islands. It stretches approximately from 37 degrees latitude north to 35 degrees latitude south and has 54 sovereign ...Read more
Author:Mbiada, AK; Isong, B; Lugayizi, F; Abu-Mahfouz, Adnan MIDate:Jul 2022Computer programming is at the core of the computing discipline and its understanding and mastery are critical to a student’s success. However, its abstract nature makes it difficult to teach, learn, understand and assimilate. Moreover, most ...Read more
Author:Grobbelaar, C.S; Billinggum, P.ADate:1975The most basic function of a building is to protect its occupants and their possessions from the weather. It is no wonder therefore that a leaking root, or finishes marred by dump, leave the owner feeling cheated- his building isn’t doing the ...Read more
Author:Billingham, PADate:1977When man first began to build shelters for himself about 800 years ago he concentrated on providing effective walls and roof. The floor go-t scant attention because it was already provided by the earth. The first soft floor coverings ware ...Read more
Author:Donaldson, GW; Billingham, PADate:1973The words ‘built on a firm foundation' have become part of the language and most people would unhesitatingly agree that a house has to have a foundation' without perhaps understanding exactly why. If one were to place an open wooden box upside ...Read more
Author:Addis, B.JDate:1980Paving is used to cover ground to eliminate dust, mud or erosion and to facilitate the movement of traffic. It can also be used to control the moisture content of the underlying soil around houses built on unsable soil such as heaving clay. ...Read more
Author:Ferreira, T.M; Billingham, P.ADate:1973The difference between sound and noise varies from one human being to another. Noise, then, is simply unwanted sound and to understand how it can be combatted we must know more about its nature. A guide of acceptable levels of noise are investigated.Read more
Author:Cromarty, R.E; Billingham, P.ADate:1985Thousands of years ago primitive man made use of some of the colourful materials that he found around him to stain his body and clothing. He also decorated the walls of his cave with pictures of hunters and wild animals drawn with these ...Read more
Author:Ferreira, TDate:1979Home owners often complain that traffic noise disturbs their indoor peace and quiet. It is difficult, expensive and probably unnecessary to make the whole house soundproof. To appreciate and apply the practical tips that follow later, it is ...Read more
Author:Billingham, P.ADate:1977It has become fashionable to talk of 'energy crisis' but in fact there is still no shortage of energy - if one is prepared to pay the price. This situation, however, cannot continue indefinitely because our limited supplies coal and oil are ...Read more
Author:Cawood, WNDate:1976Since primitive man first set fire to a heap of twigs to warm his cave, mankind has been making use of the earth's energy resources. Fortunately, we still have the sun, which offers us an inexhaustible source of non-polluting energy.Read more
Author:Lotz, F.J; Billingham, P.ADate:1974Too many people need to switch on the air-conditioning every time the sun comes up and light a fire as soon as it does down again. The sun is a wonderful source of energy that comes free of charge to all of us.Read more
Author:Long, KDate:1978Thatch has been used as a roofing material from the earliest times. The basic tools of the thatcher's craft have not changed over hundreds of years. Thatching is a craft that is traditionally handed down from father to son.Read more