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1. ## 氣體偵測器 相關

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1. ### en.wikipedia.org › wiki › Trace_Gas_OrbiterTrace Gas Orbiter - Wikipedia

The ExoMars Trace Gas Orbiter ( TGO or ExoMars Orbiter) is a collaborative project between the European Space Agency (ESA) and the Russian Roscosmos agency that sent an atmospheric research orbiter and the Schiaparelli demonstration lander to Mars in 2016 as part of the European-led ExoMars programme. [7] [8] [9]

2. ### en.wikipedia.org › wiki › LidarLidar - Wikipedia

Lidar ( / ˈlaɪdɑːr /, also LIDAR, LiDAR or LADAR, an acronym of "light detection and ranging" [1] or "laser imaging, detection, and ranging" [2]) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver.

3. ### en.wikipedia.org › wiki › Gas_constantGas constant - Wikipedia

• Dimensions
• Relationship with The Boltzmann Constant
• Measurement and Replacement with Defined Value
• Specific Gas Constant
• U.S. Standard Atmosphere

From the ideal gas law PV = nRTwe get: 1. R = P V n T {\displaystyle R={\frac {PV}{nT}}} where P is pressure, V is volume, n is number of moles of a given substance, and T is temperature. As pressure is defined as force per area of measurement, the gas equation can also be written as: 1. R = f o r c e a r e a × v o l u m e a m o u n t × t e m p e r...

The Boltzmann constant kB (alternatively k) may be used in place of the molar gas constant by working in pure particle count, N, rather than amount of substance, n, since: 1. R = N A k B , {\displaystyle R=N_{\rm {A}}k_{\rm {B}},\,} where NA is the Avogadro constant.For example, the ideal gas lawin terms of the Boltzmann constant is: 1. P V = N k B...

As of 2006, the most precise measurement of R had been obtained by measuring the speed of sound ca(P, T) in argon at the temperature T of the triple point of water at different pressures P, and extrapolating to the zero-pressure limit ca(0, T). The value of Ris then obtained from the relation: 1. c a ( 0 , T ) = γ 0 R T A r ( A r ) M u , {\displays...

The specific gas constant of a gas or a mixture of gases (Rspecific) is given by the molar gas constant divided by the molar mass (M) of the gas or mixture: 1. R s p e c i f i c = R M {\displaystyle R_{\rm {specific}}={\frac {R}{M}}} Just as the molar gas constant can be related to the Boltzmann constant, so can the specific gas constant by dividin...

The U.S. Standard Atmosphere, 1976 (USSA1976) defines the gas constant R∗as: 1. R∗ = 8.31432×103 N⋅m⋅kmol−1⋅K−1 = 8.31432 J⋅K−1⋅mol−1. Note the use of kilomoles, with the resulting factor of 1000 in the constant. The USSA1976 acknowledges that this value is not consistent with the cited values for the Avogadro constant and the Boltzmann constant. T...

 Ideal gas calculator Archived 2012-07-15 at the Wayback Machine– Ideal gas calculator provides the correct information for the moles of gas involved. Individual Gas Constants and the Universal Gas Constant– Engineering Toolbox
4. ### en.wikipedia.org › wiki › Uncertainty_principleUncertainty principle - Wikipedia

The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which certain pairs of physical properties, such as position and momentum, can be simultaneously known.

5. ### en.wikipedia.org › wiki › Main_PageWikipedia, the free encyclopedia

Alan Wace (13 July 1879 – 9 November 1957) was an English archaeologist who served as director of the British School at Athens between 1914 and 1923. He excavated widely in Thessaly, Laconia and Egypt, and at the Bronze Age site of Mycenae in Greece. Along with Carl Blegen, Wace argued against the established scholarly view that Minoan Crete ...

6. ### en.wikipedia.org › wiki › Chicxulub_craterChicxulub crater - Wikipedia

The Chicxulub crater ( IPA: [t͡ʃikʃuˈluɓ] ⓘ cheek-shoo-LOOB) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is offshore, but the crater is named after the onshore community of Chicxulub Pueblo (not the larger coastal town of Chicxulub Puerto ). [3]

7. ### en.wikipedia.org › wiki › Space_Shuttle_Solid_Rocket_BoosterSpace Shuttle Solid Rocket Booster - Wikipedia

The Space Shuttle Solid Rocket Booster ( SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight. [1] A pair of these provided 85% of the Space Shuttle 's thrust at liftoff and for the first two minutes of ascent.

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