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Becoming a middle-income economy is an explicit development goal of many countries in Sub-Saharan Africa. This book assesses the implications of that goal for secondary education in Ethiopia. It shows that a rapid expansion of secondary education will be needed to support the country's transition from a low-income economy with substantial subsistence agriculture to a lower-middle-income economy with an increased share of commercial agriculture, as well as growing industrial and service sectors. As Ethiopia moves towards this goal, the demand for a labor force with skills beyond basic literacy...

Failures or forced shutdowns in power plants are often due to boilers, and particularly failure of boiler tubes. This comprehensive resource deals with the subject of failure investigation of boiler tubes from basic fundamentals to practical applications. Coverage includes properties and selection of materials for boiler tubes from a metallurgical view point, damage mechanisms responsible for failure of boiler tubes, and characterization techniques employed for investigating failures of boiler tubes in thermal power plants and utility boilers of industrial/commercial/institutional (ICI)...