Gauss’s Method of Adjustment by Correlates

1999 ◽  
pp. 151-162
Author(s):  
Richard William Farebrother
Keyword(s):  
Method Of Adjustment

Race Difference in Auditory Sensitivity

1964 ◽  
Vol 7 (4) ◽  
pp. 389-393 ◽  
Author(s):  
David C. Shepherd ◽  
Robert Goldstein ◽  
Benjamin Rosenblüt
Keyword(s):  
White Women ◽  
White Men ◽  
Sensitivity Study ◽  
Auditory Sensitivity ◽  
Race Difference ◽  
Men And Women ◽  
Auditory Thresholds ◽  
Békésy Audiometry ◽  
Method Of Adjustment ◽  
Better Than

Two separate studies investigated race and sex differences in normal auditory sensitivity. Study I measured thresholds at 500, 1000, and 2000 cps of 23 white men, 26 white women, 21 negro men, and 24 negro women using the method of limits. In Study II thresholds of 10 white men, 10 white women, 10 negro men, and 10 negro women were measured at 1000 cps using four different stimulus conditions and the method of adjustment by means of Bekesy audiometry. Results indicated that the white men and women in Study I heard significantly better than their negro counterparts at 1000 and 2000 cps. There were no significant differences between the average thresholds measured at 1000 cps of the white and negro men in Study II. White women produced better auditory thresholds with three stimulus conditions and significantly more sensitive thresholds with the slow pulsed stimulus than did the negro women in Study II.

On computational scheme of correlate method of adjustment

2019 ◽  
Vol 63 (2) ◽  
pp. 145-151
Author(s):  
Neyman Yu.M. ◽  
◽  
Sugaipova L.S. ◽  
Keyword(s):  
Computational Scheme ◽  
Method Of Adjustment

Research of Zero Calibration in Conoscopic Holography Measurement Based on Image

2013 ◽  
Vol 303-306 ◽  
pp. 386-389
Author(s):  
Shu Yan Ren ◽  
Yong Gang Yang ◽  
Hai Long Duan
Keyword(s):  
Extreme Points ◽  
B Splines ◽  
Contact Measurement ◽  
Measurement Result ◽  
Common Path ◽  
Repeatability Error ◽  
Zero Position ◽  
Conoscopic Holography ◽  
Patch Image ◽  
Method Of Adjustment

Non-contact measurement based on conoscopic holography is a kind of interferometry with common path, so it is not influenced much by other factors such as vibration. But the measurement result is affected by the uniformity of the crystal, which is analyzed in this paper, and corresponding method of adjustment based on image is discussed. And B-splines function is used to calculate zero position in measurement image, which is fitted over the patch image in the neighborhood of gray extreme points of the stripes, which is important to reduce the repeatability error, optimize design, and improve the accuracy of system.

scholarly journals Hues of Color Afterimages

i-Perception ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 204166952090355 ◽  
Author(s):  
Jan Koenderink ◽  
Andrea van Doorn ◽  
Christoph Witzel ◽  
Karl Gegenfurtner
Keyword(s):  
Iterative Method ◽  
Fixation Mark ◽  
Narrow Region ◽  
Left And Right ◽  
The Moment ◽  
Color Circle ◽  
The Relationship ◽  
Method Of Adjustment

We studied the relationship between color afterimages and complementary colors. The hues of afterimages of 24 inducer hues, uniformly distributed over the rgb color circle, were measured by an iterative method of adjustment. The judgment of equality of hue of the afterimage and a synthesized patch was effectively judged at the moment immediately after the switch-off of the inducer, when the synthesized patch went through any number of iterative adjustments. The two patches—both phenomenally present, but only one optically presented—appeared to the left and right of a fixation mark that was fixated throughout the whole procedure. Thus, both patches were present in eccentric vision. The hues of afterimages were found to be quite different from the hue of the complementary of the inducer. Almost one half of the color circle (orange to chartreuse) leads to afterimage hues in a narrow region of purples. This implies that color circles based on diametrically opposed inducer–afterimage hues are necessarily inconsistent. Yet, perhaps surprisingly, the relation between primary and afterimage hues is still approximately an involution (they are reciprocally related).

scholarly journals Development of methods for equalizing level networks

2020 ◽  
Vol 21 (1) ◽  
pp. 58-65
Author(s):  
Ekaterina N. Esina ◽  
Vladislava V. Likhodeevskaya
Keyword(s):  
Measurement Accuracy ◽  
Closed Loop ◽  
Mutual Influence ◽  
Parametric Method ◽  
Network Configuration ◽  
Nodal Points ◽  
True Values ◽  
Intensive Development ◽  
Method Of Adjustment

The article is devoted to comparison of methods of calculating the approximate elevations of nodal points when adjusting leveling networks by strict and non-strict methods. Ensuring geomechanical monitoring of the mutual influence of constructed and operated objects is important in the intensive development of underground space of megacities, the construction of unique objects and structures. In the course of the research, mathematical models of level networks were developed and presented in the form of a closed loop and a set of open polygons. Analysis of modeling allows to determine the feasibility of applying the knot method by Professor V.V. Popov instead of the parametric method of adjustment. It is established that the quality of the results of strict equalization depends entirely on the quality of measurements, since deviations from the true values do not exceed the measurement error. The research has shown that it is possible to simplify the processing of monitoring data and evaluation of various configuration options for leveling networks, using algorithms for calculating approximate marks of nodal points. This makes it easier to process monitoring results and evaluate various network configuration options while ensuring the required level of measurement accuracy.

Comparison of Three Psychophysical Techniques for Estimating Body-Size Perception

1995 ◽  
Vol 80 (3_suppl) ◽  
pp. 1379-1390 ◽  
Author(s):  
Rick M. Gardner ◽  
Leifann C. Jones ◽  
Eric D. Bokenkamp
Keyword(s):  
Body Size ◽  
Response Bias ◽  
Size Perception ◽  
Systematic Bias ◽  
Size Distortion ◽  
Estimation Task ◽  
Detection Analysis ◽  
Body Size Perception ◽  
Signal Detection Analysis ◽  
Method Of Adjustment

Perception of body size was recorded for 63 university students ( M age = 25.3 yr., 41 women) who estimated their own body size using three methods. Using the method of adjustment, subjects over- or underestimated their body size. A signal-detection analysis indicated that subjects were sensitive to detecting a 4% distortion in body size and that there was no systematic bias for reporting distortion as present or absent. Scores on the adaptive probit estimation task were significantly correlated with values for point of subjective equality and the size judgements with the method of adjustment. Over-all, this experiment demonstrated adaptive probit estimation as a reliable indicator of perceived body size, sensitivity in detecting size distortion, and response bias in making body-size judgements.

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