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Biochar for Environmental Management
Biochar is the carbon-rich product which occurs when biomass (such as wood, manure or crop residues) is heated in a closed container with little or no available air. It can be used to improve agriculture and the environment in several ways, and its persistence in soil and nutrient-retention properties make it an ideal soil amendment to increase crop yields. In addition to this, biochar sequestration, in combination with sustainable biomass production, can be carbon-negative and therefore used to actively remove carbon dioxide from the atmosphere, with potentially major implications for mitigation of climate change. Biochar production can also be combined with bioenergy production through the...
Rotary Kilns
Rotary Kilns—rotating industrial drying ovens—are used for a wide variety of applications including processing raw minerals and feedstocks as well as heat-treating hazardous wastes. They are particularly critical in the manufacture of Portland cement. Their design and operation is critical to their efficient usage, which if done incorrectly can result in improperly treated materials and excessive, high fuel costs. This professional reference book will be the first comprehensive book in many years that treats all engineering aspects of rotary kilns, including a thorough grounding in the thermal and fluid principles involved in their operation, as well as how to properly design an engineer...
Asante Ntahera Trumpets in Ghana
Based on the author's fieldwork in Ghana with the Asante and Denkyira ntahera trumpeters, this book draws on interviews, field recordings, oral traditions, written accounts, archaeological evidence, transcriptions and linguistic analyses to situate the Asante trumpet tradition in historical culture. There are seven ivory trumpet ensembles in residence at the Asante Manhyia Palace in Kumase, and ivory trumpets are blown at every Akan court. The Asante trumpets, which are made from elephant tusks, are symbols of Asante strength and have an important role in Asante cosmology. Surrogate speech is performed via lipped tones through a tusk in praise of the Asante royal ancestors and the living Asa...
Diplomatic List
Directory of foreign diplomatic officers in Washington.
Diplomatic List
Directory of foreign diplomatic officers in Washington.
Social Media and Elections in Africa, Volume 1
This book brings together fresh evidence and new theoretical frameworks in a unique analysis of the increasing role of social media in political campaigns and electoral processes across Africa. Supported by contemporary and historical cases studies, it engages with the main drives behind the various appropriations of social media for election campaigns, organization, and voter mobilization. Contributors in this volume delve into changing and complex aspects of social media, offering an appraisal of theoretical perspectives and examining fascinating case studies which social media use is redefining elections across Africa. Contributions show that new media ecologies are resulting in new policy regimes, user behaviors, and communication models that have implications for electoral processes. The book also provides preliminary analysis of emerging forms of algorithm-driven campaigns, fake news, information distortions and other methods that undermine electoral democracy in Africa.
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