Andreas Greiner – författare

​This book explores the role of caravan transport and human porterage in the colony of German East Africa (present-day mainland Tanzania, Rwanda, and Burundi). With caravan mobility being of pivotal importance to colonial rule during the late nineteenth and early twentieth centuries, the exploration of vernacular transport and its governance during this period sheds new light on the trajectories of colonial statehood. The author addresses key questions such as the African resilience to colonial interventions, the issue of labor recruitment, and the volatility of colonial infrastructure. This book unveils a fundamental contradiction in the way that German administrators dealt with precolonial modes of transport in East Africa. While colonizers championed for the abolishment of caravan transport, they strongly depended on porters in the absence of pack animals or railways. To bring this contradiction to the fore, the author studies the shifting role of caravans in East Africa during the era of ‘high imperialism.’ Uncovering the extent to which porters and caravan entrepreneurs challenged and shaped colonial policymaking, this book provides an insightful read for historians studying German Empire and African history, as well as those interested in the history of transport and infrastructure. 

Focuses on basic aspects of nano/microfibers made by electrospinning with details on spinning recipes, characterization techniques and chemistry of the polymers in use. The basic understanding provided in the book, is useful for producing 1D and 3D fibrous structures with specific properties for applications, e.g. textiles, membranes, reinforcements, catalysis, filters or biomedical uses. Students and practitioners will find great value in the step by step instructions how to manufacture nanofibers.

- Electrospinning equipment- History of electrospinning and nanofibers -characterization-fundamentals of electrospun fibers- Ready-made recipes for spinning solutions- Conditions for the productions of highly diverse fiber morphologies and arrangements- Chemistry of fiber forming materials

Focuses on basic aspects of nano/microfibers made by electrospinning with details on spinning recipes, characterization techniques and chemistry of the polymers in use. The basic understanding provided in the book, is useful for producing 1D and 3D fibrous structures with specific properties for applications, e.g. textiles, membranes, reinforcements, catalysis, filters or biomedical uses. Students and practitioners will find great value in the step by step instructions how to manufacture nanofibers.

- Electrospinning equipment- History of electrospinning and nanofibers -characterization-fundamentals of electrospun fibers- Ready-made recipes for spinning solutions- Conditions for the productions of highly diverse fiber morphologies and arrangements- Chemistry of fiber forming materials