Composite catalysts made of a zeolitic and a non-zeolitic active oxide/poly-oxide as a matrix can be used to crack the bulky feed molecules into smaller molecules which can diffuse inside the zeolite pores providing a two-phase system of the composite that operates synergistically.
This synergism is a result of the open structure of the matrix that allows easy intra-particle diffusion and favours the primary cracking of the bulky feed molecules, as a result of the balance between the acidic sites and the metallic sites due to the dispersion of Pt throughout the matrix [27, 46, 47].
Moreover, the mysticetes, compared to odontocetes, lack an adult dentition but instead acquired a novel filter feeding mechanism using baleen plates to filter feed for bulky prey, and ultimately, this key specialization, permitted the evolution of gigantic body size, a hallmark of modern baleen whales [ 5– 7].
However, the microporous nature of many conventional catalysts limits their ability to convert bulky and viscous feeds typical of plant or algal oils.
For years, many in the scientific community dismissed Engelbart's revolutionary vision that would bring computers — then bulky machines operated by engineers and fed data on punch cards — into the digital age and into homes and offices the world over.
These side seams are too bulky and will be nearly impossible to feed through the rolled hem presser foot.
It's big, it's bulky, but it doesn't cost a fortune to feed and maintain.
Comparing these bulky baby stars with those of normal size will help theorists predict how a disk feeds its growing star, and whether the leftovers congeal into planets and other orbiting bodies.
Crib, in agriculture, bin or large container for storing ear corn or other grain or a barred or slatted manger for the feeding of hay or other bulky fodder.
If a ration needs to contain a higher percent of concentrates, such as that of a race horse, bulky grains such as oats should be used as much as possible; a loose mass of feed helps prevent impaction colic.
