영어에서 QUALITY FACTOR 의 뜻은 무엇인가요?
Q 인자
물리학 및 공학에서 품질 계수 또는 Q 팩터는 오실레이터 또는 공진기의 언더 댐핑 (under-damped) 또는 동등하게 공진 주파수의 중심 주파수에 대한 대역폭 특성을 나타내는 무 차원 파라미터입니다. 높은 Q는 공진기의 저장된 에너지에 비해 낮은 에너지 손실률을 나타냅니다. 진동은 더 천천히 사라집니다. 공기 중에 진동하는 고품질 베어링에 매달린 진자는 높은 Q를 가지고 진자는 기름에 잠긴 진자가 낮습니다. 높은 품질의 공진기는 댐핑이 낮아서 더 오래 울립니다.
영어 사전에서 quality factor 의 정의
사전의 품질 요소 정의는 전리 방사선의 특성으로 생물학적 영향을 미치는 능력에 영향을 미칩니다. 감마선과 같은 약하게 이온화하는 방사선의 경우 값 1을 갖지만 알파선의 경우 약 20입니다. 이전 이름 : 상대적 생물학적 효율성.
«QUALITY FACTOR» 관련 영어 책
다음 도서 목록 항목에서
quality factor 의 용법을 확인하세요.
quality factor 에 관련된 책과 해당 책의 짧은 발췌문을 통해 영어 서적에서 단어가 사용되는 맥락을 제공합니다.
1
ICRP Publication 92: Relative Biological Effectiveness ...
The effect of ionising radiation is influenced by the dose, the dose rate, and the quality of the radiation.
2
Microstrip Antennas: The Analysis and Design of Microstrip ...
QUALITY FACTOR, BANDWIDTH, AND EFFICIENCY OF MICROSTRIP
ELEMENTS The usual goal of an antenna design is to produce an antenna
system which has high efficiency and large bandwidth. However, these
parameters are ...
David M. Pozar, Daniel H. Schaubert,
1995
3
Electromagnetics, Microwave Circuit and Antenna Design for ...
9.6 COUPLING OF RESONANT CIRCUITS AND RESONATORS 9.6.1 The
Loaded Quality Factor If a resonant circuit or a resonator is coupled to an external
circuit, energy stored in the resonant circuit or the resonator will be exchanged
with ...
4
Springer Handbook of Nanotechnology
For tapping-mode applications, where high-speed scanning is the goal, Q-control
was able to reduce the scan speed that limits relaxation time [27.52]. A large
quality factor Q does not only have the virtue of increasing the force sensitivity of
the ...
5
Understanding Radiography
This is taken into account by means of a quality factor: rem = rad x (quality factor)
X-rays have a quality factor of 1 (see Figure 203). So we have the convenient
situation that for diagnostic x-rays 1 R (approx. = ) 1 rad, which (approx = ) 1 rem.
The Quality-factor is independent of the frequency. The process is often
expressed in terms of the dissipation factor Q~l, which characterizes the
absorbent properties of the subsurface. The logarithmic decrement A = n/Q is the
attenuation per ...
7
Antennas with Non-Foster Matching Networks
Another important reason to worry about the reduction of the radiation resistance
is that it contributes to an increase in the antenna's radiation quality factor (Qr). (In
contrast to reactive components such as capacitors and inductors, we want an ...
James T. Aberle, Robert Loepsinger-Romak,
2007
8
Radio-frequency Electronics: Circuits and Applications
We will model the lossy inductor as an ideal inductor in series with a resistor of
value rs. The ratio of the inductive reactance, XL, to this resistance value is the
quality factor, Qv, where the subscript denotes "unloaded Q" or component Q. (
Less ...
... dx v= dt = −A0ωo exp(−γt/2)(sinω ot). Then E =1 2A20 exp(−γt)(mω2osin2 ωot
+kcos2 ωot). Substituting for ω2o = k/m, we obtain E = 1. 2.3 RATE OF ENERGY
LOSS IN A DAMPED HARMONIC OSCILLATOR 2.3.1 The quality factor Q of ...
10
Information and Database
Quality
quality factor type which is a feature which may serve to characterize an object, a
quality factor which is attached to a specific data warehouse object and a quality
value which is a measurement of a quality factor at a certain instant.
Mario G. Piattini, Coral Calero, Marcela F. Genero,
2002
«QUALITY FACTOR» 단어를 포함하는 뉴스 기사
다음 뉴스 기사의 맥락에서 국내 및 국제 언론이 말하는 내용 및
quality factor 단어를 사용하는 방법을 알아보세요.
Quality factor explained by profitability: Robert Novy-Marx
Among academic classifications, and the subsequent implementation of factor investing, “quality” is one of the newer areas of investigation. Robert Novy-Marx ... «Top1000funds.com, 6월 15»
Using a Vacuum Probe Station to Test High Quality Factor …
This article discusses the measurement of the Q-factor of thin-film polycrystalline diamond micromechanical resonators. The fabrication of different types of ... «Azom.com, 5월 15»
iShares MSCI USA Quality Factor ETF Experiences Big Inflow
Looking today at week-over-week shares outstanding changes among the universe of ETFs covered at ETF Channel , one standout is the iShares MSCI USA ... «Nasdaq, 4월 15»
New Factor ETF From ArrowShares Debuts
ArrowShares joins the factor-based exchange traded fund movement today with the ... The new ETF uses the quality factor this way: “Quality factor scores are ... «ETF Trends, 3월 15»
Quality Factor Working for This Dividend ETF
The quality factor is a point of emphasis for a growing number of strategic beta exchange traded funds. Though there has been debate surrounding defining ... «ETF Trends, 2월 15»
Exploring The Quality Factor (SPHQ)
The exact definition of the quality factor is debatable, as many investors measure quality in different ways. However, in constructing its S&P 500 High Quality ... «Seeking Alpha, 2월 15»
iShares Proposes Variety of Multi-Factor ETFs - ETF News And …
At the current level, iShares operates iShares MSCI USA Quality Factor ETF ( QUAL ) which, though not exactly the same as the newly filed fund, seeks to be a ... «Nasdaq, 1월 15»
Measuring nano-vibrations
The giant quality factors that ICFO researchers have measured have not been observed before in nanotube resonators mainly because their vibrational states ... «Phys.Org, 11월 14»
iShares Files for International Quality and Momentum Factor ETFs …
Continuing with this trend, the issuer has recently filed for two new products - iShares MSCI International Developed Quality Factor ETF and the iShares MSCI ... «NASDAQ, 10월 14»
Going Green: The Quality Factor
Going Green: The Quality Factor. Consumer behaviors and product quality can be as important as efficient manufacturing technologies and resource-saving ... «Textile World Magazine, 5월 14»