Definitions
from Wiktionary, Creative Commons Attribution/ShareAlike License.
 noun metrology Symbol for the
decivolt , anSI unit ofelectromotive force equal to 10−1volts .
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Examples

At low cost dV even L1 and L2 are a bit too far in the face of a sudden Coronal Mass Ejection.

To each world w associate the conjunction cw of all propositions true in w (we suppose it exists), and consider the disjunction dV of all cw, w V (we suppose it exists).
Facts Mulligan, Kevin 2007

The symbols dA and dV are often called the "area element" and "volume element", respectively.

 The system considered above is also performing displacement work (P. dV).

If we use dV = dxdydz to note we are differentiating with respect to volume, we can define our triple integral:

If we use dV = dxdydz to note we are differentiating with respect to volume, we can define our triple integral:

TM process, yielding a fast intrinsic rectifier, providing low reverse recovery charge (Qrr) and excellent commutating dV/dt ratings.

[Q 4]  Are not the equations "Cp = (δH/δT) at constant pressure" & "Cv = (δU/δT) at constant volume" valid only for the closed systems performing P. dV work at constant pressure and volume respectively?

Power switching capabilities of HiPerFETTM versions are further enhanced via IXYS 'proven HiPerFETTM process, yielding a fast intrinsic rectifier which provides low reverse recovery charge (Qrr) and excellent commutating dV/dt ratings.

P. dV work is not only associated with closed systems but also with open systems?
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