CO OZNACZA SŁOWO Q FACTOR
Współczynnik Q
W fizyce i inżynierii współczynnik jakości lub współczynnik Q jest bezwymiarowym parametrem, który opisuje, jak tłumiony jest oscylator lub rezonator, lub równoważnie, charakteryzuje szerokość pasma rezonatora względem jego średniej częstotliwości. Wyższe Q wskazuje niższą szybkość strat energii w porównaniu do przechowywanej energii rezonatora; oscylacje umierają wolniej. Wahadło zawieszone z wysokiej jakości łożyska oscylującego w powietrzu ma wysoką wartość Q, a wahadło zanurzone w oleju ma niski. Rezonatory o wysokiej jakości czynników mają niskie tłumienie, dzięki czemu dzwonka jest dłuższa.
Definicja słowa Q factor w słowniku
Definicja współczynnika Q w słowniku jest miarą zależności między zmagazynowaną energią i szybkością rozpraszania energii w niektórych elementach elektrycznych, urządzeniach itd., Co wskazuje na ich skuteczność. Inna definicja współczynnika Q jest również nazywana: wartością Q. ciepło uwalniane w reakcji jądrowej, zwykle wyrażane w milionach elektronowoltów dla każdej indywidualnej reakcji Q.
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1
Fiber Based Dispersion Compensation
underlying assumptions. Understanding these assumptions is crucial to making
proper use of the Q-factor. In one of its uses, most frequently employed by
experimentalists, the Q-factor is just a different and more convenient way of
expressing ...
Siddharth Ramachandran,
2007
2
DWDM Network Designs and Engineering Solutions
1l is the value of the 1-bit current. IQ is the value of the 0-bit current. iTJ is the
standard deviation of the 1 -bit current. and O0 is the standard deviation of the 0-
bit current. The relationship of Q-factor to BER is shown in Equation 4-10.
Equation ...
Ashwin Gumaste, Tony Antony,
2003
3
Optical Fiber Telecommunications IV-B: Systems and Impairments
Q-Factor (linear) Log (BER) _6_ -12Fig. 4.22 Bit-error ratio as a function of Q-
factor. relationship between the Q-factor and bit-error ratio is shown in Fig. 4.22.
A convenient relationship to bear in mind is that a BER of 10'9 requires a Qfactor
of ...
Ivan Kaminow, Tingye Li,
2002
Having discussed the cavity photon lifetime, we can now introduce the cavity
quality factor, or Q factor, and derive its relation ... the cavity Q factor (usually
abbreviated to cavity Q) as Q D 2(energy stored)/(energy lost in one cycle of
oscillation).
5
Correlating
Q-
factor Measurements to Other Parameters in ...
53 Figure 5.9: Q-factor Change of Freeze-Thaw Cabinet Specimens........................
..... 54 Figure 5.10: Compression Strength of Duggan Specimens with Error Bars .
............ 55 Figure 5.11: Q-factor and Expansion Change Correlation of Duggan ...
Cintia Mabel Lijeron,
2008
6
Filter Design for Signal Processing Using MATLAB and Mathematica
... (4)verifythe filterrealization, and plot the frequency response of the following
second-order filters: (a) lowpass low-Q-factor op amp active RC second-order
filter, (b) highpass low-Q-factor op amp active RC filter (c) bandpass low-Q-factor
op ...
Miroslav D. Lutovac, Dejan V. Tošić, Brian Lawrence Evans,
2001
7
Christensen's Physics of Diagnostic Radiology
Transducer Q Factor. The Q factor refers to two characteristics of piezoelectric
crystals: the purity of their sound and the length of time that the sound persists. A
high-Q transducer produces a nearly pure sound made up of a narrow range of ...
Thomas S. Curry, James E. Dowdey, Robert C. Murry,
1990
8
Undersea Fiber Communication Systems
factor to quantify the transmission quality is the following: If the transmission
quality is limited by the signal–ASE beat noise, the Q-factor deduced from Eq. (2)
with an infinite extinction ratio is: Q2 1⁄4 P SNASEBe ð13Þ In that case, Q2 is
equal ...
9
Radio-frequency Electronics: Circuits and Applications
Q-FACTOR SUMMARY Loaded Q, the Q-factor associated with circuits can be
either high or low, depending on the application. Narrow-band filters have high
loaded Q. Wide-band matching circuits have low loaded Q. Loaded Q is therefore
...
10
Managing Interactive Video/multimedia Projects
If we measure the cost in hundreds of thousands of dollars, the Q-factor will come
out in small numbers for most industrial quality level presentations. Multiplying
the Q-factor times the total hours of user time in the presentation will give us an ...
Robert E. Bergman, Thomas V. Moore,
1990
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «Q FACTOR»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
Q factor w wiadomościach.
Shimtech Assembles the 'Hi-Q Factor' At Le Bourget
NewswireToday - /newswire/ - Le Bourget, Ile-de-France, France, 2015/06/16 - Shimtech Industries (“Shimtech”), the fast-growing, international aerospace ... «Newswire Today, Cze 15»
Small business brand value is more than the Q factor
Could the Q factor be involved in perpetuating the marketplace myth that owning a brand is the exclusive domain of big business? After all, if only the young and ... «Forbes, Paz 14»
CES 2014: Q Factor Aims to Solve Video Buffering With an SDK
This year it's Q Factor, which says it can stop video buffering and all types of network congestion in an usual way -- with an SDK. Using its already announced ... «StreamingMedia.com, Sty 14»
Q Factor Names Eric Bomarsi Vice President of Engineering
WALTHAM, Mass.--(BUSINESS WIRE)--Q Factor, the software-only solution that dramatically improves delivery of rich media to any device on any network, ... «Business Wire, Gru 13»
Boston Tech Roundup: Narvii, Q Factor, SiteSpect, & More
—Q Factor Communications, a Waltham, MA-based startup working on software to improve video (and other rich media) delivery to smartphones and tablets, ... «Xconomy, Paz 13»
Q Factor Raises $6.5M Series A To Fix Rich Media Delivery On …
Q Factor, a U.S. startup that's aiming to fix media-rich content delivery on wireless devices so there's less — or even zero — waiting around to watch that video or ... «TechCrunch, Paz 13»
Sir Sean Connery Has the “Q Factor”
Sir Sean Connery has been determined to be the greatest British actor of all-time, based on the results of the biannual Q Score, which polled an American ... «Anglophenia, Paz 13»
The Q Factor
It marked the Q factor—not the one physicists and engineers mean when they talk about bandwidth and oscillators—but a space where sexual identity, whatever ... «Chronicle of Higher Education, Gru 11»