Draught risk from cold vertical surfaces

Draught Animal Power

Landing, perching and taking off from vertical surfaces

An approach is presented whereby small, unmanned aircraft can land on walls. The approach is demonstrated with a plane that uses an ultrasonic sensor to initiate a pitch-up maneuver as it flies toward a wall. The plane contacts the wall with spines that engage asperities on the surface. A non-linear suspension absorbs the kinetic energy while keeping the spines attached. A planar dynamic model ...

Draught animals and welfare.

In fifty developing countries, which contain half of the total human population of the world, there is a heavy dependence on draught animals as an energy source. These animals are used for agriculture operations in 52% of cultivated areas of the world, as well as for hauling 25 million carts. This situation is likely to continue for at least another fifty years. The work performed annually by t...

Self-Actuated Displays for Vertical Surfaces

Most current devices are passive regarding their locations by being integrated in the environment or require to be carried when used in mobile scenarios. In this paper we present a novel type of self-actuated devices, which can be placed on vertical surfaces like whiteboards or walls. This enables vertical tangible interaction as well as the device interacting with the user through selfactuated...

Curve: Blending Horizontal and Vertical Interactive Surfaces

Desktops are the most prevalent environment for productive use of computers. However, there is still a gap between physical and virtual desktops. Previous approaches merged both worlds into one interactive horizontal surface. We argue that horizontal and vertical surfaces serve different purposes and offer different advantages. Therefore, we propose the combination of both surfaces by a soft cu...