Abstract: A vehicle configured for conveying at least one container. The vehicle has a supporting portion configured for holding said container, and a primary lifting mechanism for controlling elevation of the supporting portion. The lifting mechanism is configured to move the supporting portion between an elevated position and a lowered position. The supporting portion is configured for assuming a retracted state associated with a first outline of the vehicle when seen from above, and combinable at least with the lowered position of the supporting portion, and an extended state associated with a second outline of the vehicle when seen from above and combinable at least with the elevated position of the supporting portion. The supporting portion in its extended state has projecting areas, projecting in the second outline relative to the first outline and configured for supporting said container.

Abstract: There are provided Nano-Opto-Mechanical sensors for measuring concentration of a component in a gas flow, methods for their use and system comprising the same.