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AFAR measurements of intensity and intensity moments
The Journal of the Acoustical Society of America, 1987In an acoustic-oceanographic experiment (AFAR) performed near the Azores in 1975, frequencies from 400–4670 Hz were transmitted over a 35-km wholly refracted path. In addition, a separate data set was gathered over a 3-km path in 1973. Measurements of the intensity coherence function of time and frequency, intensity moments, and the probability ...
Stanley M. Flatté +4 more
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Intensity measurements in various rooms: A new intensity probe
The Journal of the Acoustical Society of America, 1998The main advantage of acoustic intensity measurements is that in a reverberant room the direct and the reverberant sound field can be determined. This property has been tested using the Bruel & Kjaer p-p probe in four different rooms (anechoic, reverberant and two listening rooms).
Druyvesteyn, W.F., de Bree, H.E.
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Intensity measurements in the vacuum ultra-violet
Vacuum, 1953Intensities of dispersed radiation in the region 500–3000A were measured with a compensated thermocouple mounted at the exit slit of a one-meter, normal incidence, vacuum monochromator. With 1-mm slits (17A band width), HeI at λ584 was found to be 0.025 microwatt over the exit slit.
K. Watanabe, Edward C. Y. Inn
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Variations in Vowel Intensity Measurements
Language and Speech, 1966Measurements were made of the intensities of vowels produced in isolation and in CVC syllables by three adult speakers. It was found that the predicted direct relationship with vowel opening did not apply to vowel intensity measures obtained. Similar results were found for both level recorder and voltmeter measurements.
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Preference intensity measurement
Annals of Operations Research, 1989The concept of preference intensity has been criticized over the past sixty years for having no substantive meaning. Much of the controversy stems from the inadequacy of measurement procedures. In reviewing the shortcomings of existing procedures, we identify three objectives for developing a satisfactory procedure: (1) the capability of validating ...
Peter H. Farquhar, L. Robin Keller
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Measuring the Intensity of Natural Selection
Nature, 1968HALDANE1 put forward a general measure of the intensity of natural selection. If W0 is the chance of survival of an individual with the optimum phenotype and W is the mean chance of survival in the population, then Haldane's measure is H = loge W0−loge W.
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The measurement of intensity of odour
Journal of Applied Chemistry, 1958AbstractAn instrument for the estimation of intensity of odour is described. The dilution required to make the odour just detectable in a mixture with odour‐free air is taken as a measure of the intensity, and the instrument is essentially a mechanical device for making the requisite dilution conveniently.Different persons show markedly different ...
R. G. H. Prince, J. H. Ince
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Measurement of wakefield intensity
Journal of Physics B: Atomic, Molecular and Optical Physics, 2009We report on the measurement of the wakefield of an ion moving through a beam–foil plasma using an indirect experimental method. The standard beam–foil time-of-flight technique is used to measure the lifetime of the perturbed H-like V 2s2S1/2 state due to its passage through the wakefield.
T Nandi, B P Mohanty
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2002
Once a suitable crystal has been obtained, a molecular structure investigation requires measurement of the intensities of as many Bragg reflections as possible. In this chapter, some of the options that must be decided by the experimenter will be considered, and some of the criteria used to assess the accuracy and completeness of the data will be ...
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Once a suitable crystal has been obtained, a molecular structure investigation requires measurement of the intensities of as many Bragg reflections as possible. In this chapter, some of the options that must be decided by the experimenter will be considered, and some of the criteria used to assess the accuracy and completeness of the data will be ...
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Intensity Measurements in Ultramicroscopic Studies
Applied Optics, 1966A method is described that permits the quantitative measurement of light scattered by the bulk material and individual scattering centers in transparent crystals and photographic recording with an ultramicroscope. The bulk scattering observed in sodium chloride single crystals is proved to be Brillouin scattering.
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