Using Extinction to Increase Behavior: Capitalizing on Extinction-Induced Response Variability to Establish Mands With Autoclitic Frames

Data previously collected to determine odour thresholds in fish flesh for individual contaminants identified as possible fish tainting substances from oil sands wastewaters were reanalyzed to determine both the variability in response for an 11 member panel and the range of uncertainty for the detection method. Results are presented for 8 compounds: naphthalene, 1-methylnaphthalene, 2,6-dimethylnaphthalene, 2,3,5-trimethylnaphthalene, 1.4-dimethylbenzene, benzothiophene, dibenzothiophene and 2,5-dimethylphenol. These results demonstrate that substantial variability was present in responses from a group of only 11 panelists who were selected for their sensitivity and consistency, while method uncertainty was tolerably narrow.

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Wind Pressure and Wind-Induced Vibration of Heliostat

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.400-402.935 ◽

2008 ◽

Vol 400-402 ◽

pp. 935-940 ◽

Cited By ~ 5

Author(s):

Ying Ge Wang ◽

Zheng Nong Li ◽

Bo Gong ◽

Qiu Sheng Li

Keyword(s):

Dynamic Response ◽

Wind Direction ◽

Wind Load ◽

Wind Pressure ◽

Induced Response ◽

Vertical Angle ◽

Lateral Direction ◽

Direction Angle ◽

Wind Pressures ◽

Fluctuating Wind

Heliostat is the key part of Solar Tower power station, which requires extremely high accuracy in use. But it’s sensitive to gust because of its light structure, so effect of wind load should be taken into account in design. Since structure of heliostat is unusual and different from common ones, experimental investigation on rigid heliostat model using technology of surface pressure mensuration to test 3-dimensional wind loads in wind tunnel was conducted. The paper illustrates distribution and characteristics of reflector’s mean and fluctuating wind pressure while wind direction angle varied from 0° to 180° and vertical angle varied from 0° to 90°. Moreover, a finite element model was constructed to perform calculation on wind-induced dynamic response. The results show that the wind load power spectral change rulers are influenced by longitudinal wind turbulence and vortex and are related with Strouhal number; the fluctuating wind pressures between face and back mainly appear positive correlation, and the correlation coefficients at longitudinal wind direction are smaller than those at lateral direction; the fluctuating wind pressures preferably agree with Gaussian distribution at smaller vertical angle and wind direction angle. The wind-induced response and its spectrums reveal that: when vertical angle is small, the background responsive values of reflector’s different parts are approximately similar; in addition, multi-phased resonant response occurring at the bottom. With the increase of , airflow separates at the near side and reunites at the other, as produces vortex which enhances dynamic response at the upper part.

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