| negative pressure |
Condition that exists when less air is supplied to a space than is exhausted from the space, so the air pressure within that space is less than that in surrounding areas. Under this condition, if an opening exists, air will flow from surrounding areas into the negatively pressurized space.
출처: www.madison.k12.wi.us/cso/news/chavez/iaq_glossary...
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|---|---|
| negative feedback |
A feedback signal 180?out of phase with an amplifier input signal. Used to increase amplifier stability, bandwidth and input impedance. Also reduces distortion.
출처: www.sciencelobby.com/dictionary/n.html
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| negative |
a photographic image on film where the black values in the original subject are transparent and the whie values are opaque.
출처: www.sgia.org/glossary/Nn.cfm
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| negotiation |
In X.25 communications, the process by which two DTEs establish the packet size, packet window size, and throughput class to be used during a call procedure. Contrast with validation.
출처: www.ncsa.uiuc.edu/UserInfo/Resources/Hardware/IBMp...
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| negative |
a photographic image which reverses the black and white values. It is the result of photographing camera art on a process camera and is part of the platemaking process.
출처: www.leprint.com/glossaries.html
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