منابع مشابه
sensitivity evaluation of spectral vegetation indices using sensitivity functions for stand volume estimation
identification of the best vegetation indices (vis) for use in quantitative analyzes of vegetation is one of the important issues for ecologists. the objective of this study was sensitivity evaluation of vegetation indices to a stand volume for identification of the best vegetation index (vi) in stand volume estimation using a statistical sensitivity method. also, another objective of this stud...
متن کاملSpectral Sensitivity of the Circadian System
Light exposure regulates several circadian functions in normal humans including the sleep-wake cycle. Individuals with Alzheimer’s Disease (AD) often do not have regular patterns of activity and rest, but, rather, experience random periods of sleep and agitation during both day and night. Bright light during the day and darkness at night has been shown to consolidate activity periods during the...
متن کاملSpectral Envelope Sensitivity of Musical Instruments
Abstract In musical instrument timbre perception, it is well known that one of the most salient parameters is the spectral envelope. While a number of studies have explored discrimination thresholds for changes to the spectral envelope, the question of how sensitivity varies as a function of centre frequency and bandwidth to musical instruments has yet to be addressed. In this paper we conducte...
متن کاملOn the sensitivity of the spectral projection
In this paper, we apply the theory of condition developed by Rice to define condition numbers of the spectral projection. Explicit expressions of the condition numbers are derived, and some relations between the condition numbers of the spectral projection and the condition number of the associated invariant subspace are presented. The results are illustrated by a simple numerical example. © 20...
متن کاملSpectral Sensitivity of the Barnacle, Balanus amphitrite
The extracellular ocellar potential was used to evaluate the spectral sensitivity of the ocellus of the barnacle, Balanus amphitrite. Maximum relative sensitivity was at 530-540 nm. Studies with chromatic adapting lights suggest that the receptors contain a single photopigment. The spectra were relatively broader in the dark as compared to the light-adapted state. This effect was shown to be du...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1957
ISSN: 0028-0836,1476-4687
DOI: 10.1038/179924a0