- An
envelope is a
common packaging item,
usually made of thin, flat material. It is
designed to
contain a flat object, such as a
letter or card. Traditional...
- A
viral envelope is the
outermost layer of many
types of viruses. It
protects the
genetic material in
their life
cycle when
traveling between host cells...
- In
sound and music, an
envelope describes how a
sound changes over time. It may
relate to
elements such as
amplitude (volume),
frequencies (with the use...
- The
envelope system, also
known as the
envelope budgeting method, is a po****r
method for
visualizing and
maintaining a
flexible budget. The key idea...
- An
envelope detector (sometimes
called a peak detector) is an
electronic circuit that
takes a (relatively) high-frequency
amplitude modulated signal as...
- In
physics and engineering, the
envelope of an
oscillating signal is a
smooth curve outlining its extremes. The
envelope thus
generalizes the
concept of...
- The
nuclear envelope, also
known as the
nuclear membrane, is made up of two
lipid bilayer membranes that in
eukaryotic cells surrounds the nucleus, which...
- In aerodynamics, the
flight envelope,
service envelope, or
performance envelope of an
aircraft or
spacecraft refers to the
capabilities of a
design in...
- In East and
Southeast Asian cultures, a red
envelope, red
packet or red
pocket (simplified Chinese: 红包;
traditional Chinese: 紅包; pinyin: hóngbāo; Pe̍h-ōe-jī:...
-
altered by
components such as filters,
which cut or
boost frequencies;
envelopes,
which control articulation, or how
notes begin and end; and low-frequency...
