即将过时
发表于 2025-3-21 16:10:02
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样式
发表于 2025-3-22 00:19:03
Microweighing in Vacuo with the Aid of Vibrations of a Thin Band,rations was measured by an arrangement similar to a capacitance microphone. By varying the frequency of excitation, the resonance curve could be traced. Without load the peak of the curve was found to be at 1100 Hz, whereas, with a load of 0.2 mg, the peak shifted to 1000 Hz.
RACE
发表于 2025-3-22 00:28:01
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Venules
发表于 2025-3-22 07:44:20
Determination of the Diffusion Coefficient of Vapors by Means of a Microbalance,er are weighed as a whole..Variations in apparent weight may occur due to variations in the room temperature and to electrical charges. Small variations in temperature of the evaporating liquid have a very strong influence, especially at higher evaporation rates..The diffusion coefficient of water vapor in air is determined at 323, 333, and 343 K.
META
发表于 2025-3-22 09:40:01
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国家明智
发表于 2025-3-22 13:03:59
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CHARM
发表于 2025-3-22 17:11:21
Methods for the Elimination of Weighing Troubles Due to Convection in a Microbalance,hin suspension wires; shielding samples and balance beam with horizontally suspended foils attached to the suspension wire or to the balance tube; using heaters with a homogeneous temperature zone and a helium gas stream protecting the measuring system.
亚麻制品
发表于 2025-3-22 22:47:06
UHV Microbalance and Quartz Oscillator at Low Temperatures,g quartz, agree to within 2%. In a separate experimental setup the measurements of the Rb atom beam intensities with a calibrated Pt-ionization foil and with the quartz oscillator at 81 K agree also to within 2%.
GUILT
发表于 2025-3-23 02:17:36
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激励
发表于 2025-3-23 07:28:09
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