Design and fabrication of an in situ gamma radioactivity measurement system for marine environment and its calibration with Monte Carlo method

2016 ◽  
Vol 114 ◽  
pp. 87-91 ◽  
Author(s):  
Hamed Abdollahnejad ◽  
Naser Vosoughi ◽  
Mohammad Reza Zare
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Marine Environment ◽  
Measurement System ◽  
Radioactivity Measurement

Development and deployment of an autonomous sensor for the in-situ radioactivity measurement in the marine environment

2018 ◽  
Vol 142 ◽  
pp. 181-186 ◽  
Author(s):  
Yingying Zhang ◽  
Bingwei Wu ◽  
Dongyan Liu ◽  
Ying Zhang ◽  
Yan Cheng
Keyword(s):  
Marine Environment ◽  
Radioactivity Measurement ◽  
Autonomous Sensor

Service Life Checking Calculation of Marine Reinforced Concrete Structures Based on Monte Carlo Method

2013 ◽  
Vol 788 ◽  
pp. 663-669
Author(s):  
Gui Hong Dong ◽  
Zhi Hong Fan ◽  
Jian Bo Xiong
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Service Life ◽  
Marine Environment ◽  
Concrete Structures ◽  
Chloride Concentration ◽  
Chloride Diffusion ◽  
Distribution Model ◽  
Chloride Diffusion Coefficient ◽  
Design Life

Checking some apparent chloride diffusion coefficient of concrete in the marine environment meets the requirements of design life based on Monte Carlo method. Through the project investigations, laboratory test data, statistical analysis and to determine random distribution model of the critical chloride concentration, the surface chloride concentration ,using computer program simulation 5000 random groups critical chloride concentration, surface chloride concentration into the life value calculation model, And obtain the derived distribution of the concrete structures service life, in order to determine Compliance with the design life of concrete structures. For the concrete durability design and service life checking provide the effective analysis under the marine environment.

Application of the Monte Carlo method for the calibration of an in situ gamma spectrometer

2010 ◽  
Vol 68 (7-8) ◽  
pp. 1441-1444 ◽  
Author(s):  
Faidra Tzika ◽  
Dimitrios Kontogeorgakos ◽  
Theodora Vasilopoulou ◽  
Ion E. Stamatelatos
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Gamma Spectrometer ◽  
The Monte Carlo Method

scholarly journals Example of Monte Carlo Method Uncertainty Evaluation for Above-Water Ocean Colour Radiometry

2020 ◽  
Vol 12 (5) ◽  
pp. 780 ◽  
Author(s):  
Agnieszka Białek ◽  
Sarah Douglas ◽  
Joel Kuusk ◽  
Ilmar Ansko ◽  
Viktor Vabson ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Measurement Uncertainty ◽  
Measurement Model ◽  
Uncertainty Evaluation ◽  
Ocean Colour ◽  
Monte Carlo Approach ◽  
Radiometric Measurements ◽  
Downwelling Irradiance

We describe a method to evaluate an uncertainly budget for the in situ Ocean Colour Radiometric measurements. A Monte Carlo approach is chosen to propagate the measurement uncertainty inputs through the measurements model. The measurement model is designed to address instrument characteristics and uncertainty associated with them. We present the results for a particular example when the radiometers were fully characterised and then use the same data to show a case when such characterisation is missing. This, depending on the measurement and the wavelength, can increase the uncertainty value significantly; for example, the downwelling irradiance at 442.5 nm with fully characterised instruments can reach uncertainty values of 1%, but for the instruments without such characterisation, that value could increase to almost 7%. The uncertainty values presented in this paper are not final, as some of the environmental contributors were not fully evaluated. The main conclusion of this work are the significance of thoughtful instrument characterisation and correction for the most significant uncertainty contributions in order to achieve a lower measurements uncertainty value.

Application of Monte Carlo Method in the Marine Environment

2010 ◽  
Vol 26 (01) ◽  
pp. 76-87
Author(s):  
A. Cunningham ◽  
J. Wang ◽  
D. Allanson ◽  
A. Wall
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Marine Environment ◽  
Failure Probability ◽  
Monte Carlo Methods ◽  
Cooling System ◽  
Maintenance Decisions

This paper gives a methodology for the application of Monte Carlo methods, specifically their application to onboard systems within the marine environment. The aim is to demonstrate the efficacy and worth of Monte Carlo methods as a tool and how their application can provide engineers with more information when making maintenance decisions. A case study of a marine cooling system is included using Monte Carlo Methods to examine its failure probability.

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