GM's fuel-cell vehicle prototypes, which store hydrogen compressed to 10,000 pounds per square inch, require three expensive, heavy and cumbersome carbon-fiber tanks to hold it.
Current technologies for carbon capture are cumbersome, energy intensive and expensive.
Voters do not like to hear the word "tax" unless it is followed by the word "cut".So Mr Obama proposed something very similar to a carbon tax, albeit slightly more cumbersome.
However, the existing techniques utilizing either carbon nanotubes or electromicrofluidics are cumbersome to fabricate and difficult to operate.
Unfortunately the process required to attach the 18F to a carbon atom on the targeting agent often is too long and cumbersome for practical use [3 6], which may hinder the development of new targeting agents of medical interest.
However, energy expenditure is usually measured by the less cumbersome techniques of indirect calorimetry, in which heat produced by the body is calculated from measurements of oxygen inhaled, carbon dioxide exhaled, and urinary nitrogen excreted.
Though cumbersome to say, the device itself is sleek and simple, using only a spring, wire and clutch mounted on a carbon fibre frame to take some of the slog out of bipedal locomotion.
The plotting is cumbersome.
Decision-making is cumbersome.
