- The
Quadruplex telegraph is a type of
electrical telegraph which allows a
total of four
separate signals to be
transmitted and
received on a
single wire...
- In
molecular biology, G-
quadruplex secondary structures (G4) are
formed in
nucleic acids by
sequences that are rich in guanine. They are
helical in shape...
- 2-inch
quadruplex videotape (also
called 2″ quad
video tape or quadraplex) was the
first practical and
commercially successful analog recording video tape...
- of tape
among them—it was that critical." Ampex's
quadruplex magnetic tape
video recording system has
certain limitations, such as the lack of clean...
- the cost of
video editing has
declined over time. The
original 2"
Quadruplex system costs so much, that many
television production facilities could only...
- built,
except for four
triplex locomotives in the
United States and one
quadruplex locomotive in Belgium. The
names of the
subgroups of
multiplex locomotives...
- intercalated-motif DNA, are cytosine-rich four-stranded
quadruplex DNA structures,
similar to the G-
quadruplex structures that are
formed in guanine-rich regions...
-
several minutes later.
Videotape was
introduced in 1956 with the
Ampex Quadruplex system. However, it
could not
display slow motion,
instant replay, or freeze-frames...
-
linear videotape system called Vision Electronic Recording Apparatus (VERA), but this was
ultimately dropped in
favor of
quadruplex videotape. VERA used...
-
speed was made
unnecessary with the
introduction of the
professional Quadruplex system in 1956 by Ampex,
which segmented the
fields of a
television image...
