Determination of redundancy in structures using interval uncertainty analysis

2014 ◽  
pp. 469-473
Author(s):  
M Modares ◽  
S Amirshaghaghi
Keyword(s):  
Uncertainty Analysis ◽  
Interval Uncertainty

Contactless Mass Determination of Arbitrarily Shaped Objects by Microwave Resonator Measurements

1994 ◽  
Vol 347 ◽  
Author(s):  
Andrzej W. Kraszewski ◽  
Stuart O. Nelson
Keyword(s):  
Uncertainty Analysis ◽  
Resonant Cavity ◽  
Microwave Resonator ◽  
Mass Determination ◽  
Microwave Resonant Cavity ◽  
Dielectric Objects ◽  
Better Than

ABSTRACTThe basis is presented for using a microwave resonant cavity as an effective “contactless balance”, providing information about the mass of dielectric objects inserted into the cavity. An uncertainty analysis presented in the paper confirms that the mass of small dielectric objects can be determined by this technique with an accuracy better than 4%.

Uncertainty Analysis of Activity Measurement of New Monitoring System for Free-Release for NPP A-1 Decommissioning, Slovakia

2011 ◽  
Author(s):  
Alojz Slaninka ◽  
Ondrej Sla´vik ◽  
Vladimi´r Necˇas
Keyword(s):  
Uncertainty Analysis ◽  
Monitoring System ◽  
Detection Efficiency ◽  
Activity Measurement ◽  
Counting Geometry ◽  
Rectangular Container ◽  
Energy Peak ◽  
Hpge Detectors ◽  
Detector Characterization

New free release monitoring post with a large volume 600 L container counting geometry was designed and developed. The monitoring system is able to monitor a material also in standard counting geometry of 200 L drum. Using counting geometry of 600 L rectangular container that is equipped with self-discharger is able to increase the total monitoring capacity. The monitoring system is based on a pair of electrically cooled semiconductor HPGe detectors that are placed into a modifiable vertical or horizontal pair of lead collimators. The monitoring system is integrated with an industrial scale for determination of massic activities of measured materials and in addition by a rotating table in the case of 200 L drums monitoring. Monitoring system is integrated into transportable ISO container with constant environmental conditions that are ensured by air-condition unit. Full-energy peak detection efficiency (FPE) polynomial curves for various densities of measured material were in both cases determined by ISOCS calibration code based on designed counting geometry and delivered ISOCS/LabSOCS detector characterization. Uncertainty analysis of massic activity measurement by container and drum monitoring system in designed counting geometry is introduced below in more detail.

Design of facultative ponds based on uncertainty analysis

1996 ◽  
Vol 33 (7) ◽  
pp. 41-47 ◽  
Author(s):  
Marcos von Sperling
Keyword(s):  
Sensitivity Analysis ◽  
Monte Carlo ◽  
Wastewater Treatment ◽  
Uncertainty Analysis ◽  
Accurate Determination ◽  
Effluent Quality ◽  
Uniform Distributions ◽  
Wastewater Treatment Systems ◽  
Selection Of

The paper presents a methodology for the utilisation of the Uncertainty analysis based on Monte Carlo simulations for the design of wastewater treatment systems. The special and important case of facultative-ponds design is exemplified. The design is carried out a large number of times, each run with different values of the inputs, randomly selected from uniform distributions within ranges which define the designer's uncertainty with the data. The results are interpreted statistically, giving elements for the selection of more or less conservative designs, according to the resulting effluent quality. The procedure for undertaking a Sensitivity Analysis is also described and exemplified, allowing the designer to concentrate more efforts on a more accurate determination of those inputs found to be significantly important.

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