Highly ordered MCM-41 mesoporous molecular sieves in which silicon was isomorphously substituted with 0.5 4 wt.% cobalt were synthesized using an alkyl template with a 16 carbon atoms alkyl chain length.
Entoprocts generally use one or both of: ciliary sieving, in which one band of cilia creates the feeding current and another traps food particles (the "seive"); and downstream collecting, in which food articles are trapped as they are about to exit past them.
We have studied the hydrodynamics of a reactive distillation sieve tray column in which catalyst containing wire-gauze envelopes are disposed along the liquid flow direction.
We compare the performance of an MTBE synthesis column using two different hardware configurations: (1) a sieve tray column in which the catalyst particles, encased inside wire gauze envelopes, placed along the liquid flow path; (2) a column filled with catalytically active packing of Raschig ring shape.
The data support a sieve-like model in which size-exclusion principles determine the extent of probe PEG interactions.
Pass them through a potato ricer or sieve back into pot in which they were boiled.
In 1971, Duchamp's cones, an element in "Large Glass," inspired Richard Hamilton's "Sieves (with Marcel Duchamp)," in which the artist creates the appearance of conical objects arching freely through the air by painting them on a plate of glass barely visible from a distance.
Yet, there is a high likelihood of bias when visually collecting microplastics [11, 24]: the lowest particle size in studies, in which sieves were used, was smaller than in studies, in which particles were visually collected from the samples [11].
Nutrient-conducting cells—sieve cells and sieve tube members (which in wood correspond to the axial tracheids of softwoods and the vessel members of hardwoods, respectively)—are thin-walled and nonlignified, serving usually only one season of growth.
The example depicts the case in which the harmonic sieve fits to the pitch of the speaker.
