BILL
发表于 2025-3-25 03:31:58
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免除责任
发表于 2025-3-25 09:04:40
dia of Aging and Public Health combines multiple perspectives to offer readers a more accurate and complete picture of the aging process...The book takes a biopsychosocial approach to the complexities of its subject. In-depth introductory chapters include coverage on a historical and demographic ove
琐事
发表于 2025-3-25 14:05:32
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不持续就爆
发表于 2025-3-25 18:12:59
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光滑
发表于 2025-3-25 19:59:23
Introduction,d of the units in the visible and other ranges of electromagnetic radiation related to radiometry. Relationships between the energetic, photometric, and photonic units are given. In the final sections, some principles are considered to be a basis for making radiometric measurements in scientific lab
道学气
发表于 2025-3-26 03:43:18
Radiation Sources in Radiometric Applications,range .>250 nm. The calculation techniques of spectral radiant power and spectral photon flux in different units are also considered for the case of tungsten ribbon filament strip lamps. Quartz tungsten–halogen lamps and deuterium gas-discharge light sources are treated herein as radiation sources f
红润
发表于 2025-3-26 05:57:20
Photodetectors in Radiometric Applications,issive detectors such as vacuum phototubes and photomultipliers are discussed in detail. Then CCD cameras, photodetectors with the internal photoeffect, luminescence quantum counters, and photoionization chambers are briefly discussed. The basic principles and advantages of well-established actinome
Insensate
发表于 2025-3-26 09:51:29
Methods of Absolute Calibration for Photodetectors and Light Sources,ute measurements of spectral photon flux for the investigated processes in the range running from the near IR to vacuum UV spectral range, along with absolute calibration techniques by virtue of standard detectors such as thermopiles, photodiodes, and actinometers. These techniques are discussed in
Flagging
发表于 2025-3-26 15:05:00
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Enervate
发表于 2025-3-26 17:41:07
Absolute Measurements of Spectral Radiation Intensity of Processes Under Study, spectra have been well known in arbitrary units. The methods of absolute measurements are also considered in the events, where the radiation indicator function is a well-known, and the task of the radiation fraction falling on the photocathode has the exact solution as with a point light source, un