Weber s law

Weber numbers Weber s law Web formation Web knitting Web offset inks Webster hardness gauge Weed killers... 

Calibration. The quantitative transformation of polarization measurements into binding takes advantage of unique features of the FLPEP system. Weber s Law of the additivity of anisotropy is given by... 

In selecting the stimulus continuum in threshold determination, the relation between just noticeable difference in relation to the intensity of stimuli is of interest. In accordance with Weber s law this quotient is assumed to be a constant. Therefore it would appear best to determine absolute thresholds on an intensity continuum in the form of a geometric progression. 

These findings suggest that at least one prediction of a compressed linear representation of space, time, and number is satisfied. In all three cases, estimations of magnitude obey Weber s law by showing that error increases in proportion to the magnitude estimated. 

The perception of added stimulus intensity in the presence of an existing stimulus intensity was the subject of work by Weber, Fechner, and Stevens (Smith, 1998). Weber found that the smallest detectable difference in intensity was a fraction of the intensity already present. This finding has been called Weber s Law, and has been shown to be at least approximately true for stimuli as diverse as light, sound, and the discrimination of heaviness (see Table 6.19.1) for moderate intensities. 

Fechner found that Weber s law is not true for extreme sensations, so he postulated a logarithmic relationship between the sensation felt and the physical stimulus intensity ... 

The Y-axis is the flux density (B) measured in gauss (G) or webers per square eentimeter in the U.S., and teslas or webers per square meter within the metrie system. Its behavior ean be seen by a useful relationship given by Faraday s law ... 

Instead of the dilute solution approach above, concentrated solution theory can also be used to model liquid-equilibrated membranes. As done by Weber and Newman, the equations for concentrated solution theory are the same for both the one-phase and two-phase cases (eqs 32 and 33) except that chemical potential is replaced by hydraulic pressure and the transport coefficient is related to the permeability through comparison to Darcy s law. Thus, eq 33 becomes... 

The relationship between the concentration and the perceived taste intensity of MSG was logarithmically linear like those of the four common tastes, although the slope for MSG was somewhat less steep than the others. It means that Weber-Fechner s law holds for all of the five taste substances. The relation of the taste intensity (S) to the concentration (x) can be expressed by... 

The state may be defined either by wlmt it does or by how it does whatever it does. An example of a deflnition of the second type is Weber s, in terms of the monopoly on the legitimate useof violence. Marx clearly tends towards a definition of the state in terms of its functions. In this he follows the tradition, or one tradition, in political theory. The state was commonly seen as the provider of public goods, notably law and order, but also economic goods that could not be provided efficiently by individuals. Broadly speaking, the state embodies the cooperative solution to a Prisoner s Dilemma involving all individuals in the society of which it is the state. According to Marx, the task of the state can indeed be formulated in... 

Recently Buttery et al. (77) showed the importance of logarithmic values of odor units (log [Uo]) in the evaluation of tomato flavor. The logarithmic factor is correlated to Weber-Fechner s law (72) in regard to odor intensity. Weber-Fechner s law is defined in the following equation ... 

The odor threshold (Tc) was classified by the nomenclatures listed in Table II. The odor-detection threshold (Ted) of each component was determined by the same method previously described (15). First, volatile compounds were dissolved in a small amount of methanol. The solution was diluted by deionized water until the solution was judged as odorless. Because the detection threshold of methanol is very high (more than 100 ppm), it does not interfere with determinations of the thresholds of the aroma components in Citrus sinensis OSBECK, cv Shiroyanagi. Each aqueous solution of volatiles was diluted by a factor of ten. Weber-Fechner s law predicts that the human nose can clearly distinguish only ten fold differences of concentration. We made three series (A, B, C) of diluted solutions to test detection thresholds (A 90 ppm, 9 ppm, 0.9 ppm, and 0.09 ppm. B 60 ppm, 6 ppm, 0.6 ppm and 0.06 ppm, C 30 ppm, 3 ppm, 0.3 ppm and 0.03 ppm). Independently, panel members were... 

Worm, S. W., Sabin, C., Weber, R., Reiss, P., El-Sadr, W., Dabis, F., De Wit, S., Law, M., Monforte, A. D. A., Friis-Mpller, N., Kirk, O., Fontas, E., et al. (2010). Risk of myocardial infarction in patients with HIV infection exposed to specific individual antiretroviral drugs from the 3 major drug classes The data collection on adverse events of anti-HIV drugs (D A D) study. /. Infect. Dis. 201,318-330. 

In analytical modelling the membrane is usually treated as a continuum with the prescribed transport parameters. (Alternative approaches are discussed in Weber and Newman (2004, 2007)). The proton current in membrane j obeys Ohm s law... 

Friis-Mpller N, Weber R, Reiss P, Thiebaut R, Kirk O, d Arminio Monforte A, Pradier C, Morfeldt L, Mateu S, Law M, El-Sadr W, De Wit S, Sabin CA, Phillips AN, Lundgren ID. DAD study group. Cardiovascular disease risk factors in HIV patients—association with antiretroviral therapy. Results from the DAD study. AIDS 2003 17(8) 1179-93. 

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