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Vaswani, V. (author), Loh, S. (author), Tan, B. (author), Singh, K. (author), Srigrarom, S. (author)Historically, helicopters with four rotors (quad-rotors) have been very uncommon, mainly due to the fact that most of the common payloads could be lifted using one or two rotors. However, the quad-rotor possesses some special characteristics that make it attractive. One would be the superior payload capacity. Two, is the simplicity of the...conference paper 2014
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Breukel, A. (author), Venselaar, J. (author)The Fociss (Focussing Innovation for a Sustainable Strategy) approach is a structured method to define core business related issues within sustainable development that require main attention in a specific company. In theory, Fociss has the ability for all kinds of innovations, but the implementation of radical sustainable innovations is often...conference paper 2010