This charge-pump circuit, using just a few diodes and capacitors, ups the input voltage by a factor of 1.5 in contrast to the usual voltage-doubling output. Micropower product designs sometimes ...
When you determine conductor sizes for low-voltage feeder or branch circuits, do you account for voltage drop? Some people believe this is unnecessary, and some believe that doing so is a Code ...
2019 marks the 100th anniversary of the Greinacher voltage multiplier, invented by Swiss physicist Heinrich Greinacher in 1919. In 1932, Douglas Cockcroft and Ernest Walton used this basic circuit to ...
EDN: Current, voltage and temperature govern Li-Ion battery charging – Part 2
'Acceptable to' is not really used in this situation. 'Approved by' and 'accepted by' are both perfectly fine, although I think 'approved' is a more typical usage. As a side note, program and report are not proper nouns, so they should not be written with a capital letter.
According to the Wikipedia article entitled "Manual of Style (abbreviations)", N/A is the only one that is proper; however, according to the Wikipedia article entitled "n/a" ("Not applicable" redirects to "n/a"), all of the other forms are also acceptable.
I also add that in AmE it is acceptable to use friendly both as an adverb and as a noun. There may an example in which 'friendly' is an adverb, but ordinarily it is not an adverb. It is an adjective. In general the rule about the number of syllables predicts what English speakers say, but not always.
I have always treated it as a perfectly acceptable alternative past participle of the strong verb 'to earn', like learnt/dreamt,, etc. I agree that 'earnt' is more common in speech and 'earned' in writing, but it's not an absolute rule.