### In news:

Of Energy's Pacific Northwest National Laboratory (PNNL) is seeking request for proposals (RFP) for the analysis and demonstration of fuel cell -based auxiliary power units (APUs), for refrigerated trucks.

The Department of Energy's Pacific Northwest National Laboratory (PNNL) has issued a request for proposal (RFP) for the analysis and demonstration of fuel cell -based auxiliary power units (APUs) for refrigerated trucks.

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### In science:

The cell is just an auxiliary structure needed in the mathematical framework.

Robustness of key features of loop quantum cosmology

Let C be the set of cells, and let GC be an auxiliary graph with vertex set C and with one edge connecting each pair of cells c1 and c2 iff all points in c1 have distance at most r from all points in c2 .

Disjoint Hamilton cycles in the random geometric graph

The two telescopes are being coupled to a temperature and pressure controlled compact case containing the Golay cells, choppers, low-pass and band-pass filters and other auxiliary devices, at Tydex, Saint Petersbourg, Russia.

Terahertz photometer to observe solar flares in continuum

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### Hypernyms

### Typos

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