ISSN (Print): 2333-4878

ISSN (Online): 2333-4886

Editor-in-Chief: Vishwa Nath Maurya

Website: http://www.sciepub.com/journal/AMP

   

Article

Characterization of Dose Rates and Its Internal Fluctuation Using Frequency Distribution Function of Background Radiation Data

1Department of Physics, Federal University of Technology, Akure, Nigeria


Applied Mathematics and Physics. 2016, 4(1), 16-25
doi: 10.12691/amp-4-1-3
Copyright © 2016 Science and Education Publishing

Cite this paper:
Dinyo Enoch Omosehinmi, Adeseye Muyiwa Arogunjo. Characterization of Dose Rates and Its Internal Fluctuation Using Frequency Distribution Function of Background Radiation Data. Applied Mathematics and Physics. 2016; 4(1):16-25. doi: 10.12691/amp-4-1-3.

Correspondence to: Dinyo  Enoch Omosehinmi, Department of Physics, Federal University of Technology, Akure, Nigeria. Email: dk_focus@yahoo.com

Abstract

The use of distribution function in characterization of data technique, to evaluate and estimate dose rates from background radiation in Akure informed this study. The mean and fluctuation in mean of possible exposure due to the members of the general public in Akure was deduced by statistically calculating the mean and fluctuation in mean of 166 sample points. Kindenoo blueGeiger PG-15 detector and Garmin GPSmap 62s were used for the research. The Dose Rate (DR) and its internal fluctuation range between 0.16±0.01μSv/h – 0.37±0.04μSv/h in air, and Annual Effective Dose Equivalent, AEDE between 0.31±0.02mSv/y – 0.71±0.08mSv/y; the estimated mean outdoor AEDE 0.50±0.06mSv/y for members of the general public in Akure is below the UNSCEAR and ICRP recommended 1mSv/y annual exposure dose rate. All the estimated AEDE from measured dose rates at the chosen locations have values far lower than the 100mSv limit of admissible low-level radiation. The skewness and kurtosis of DR distribution is 0.134 and 0.251 with standard error 0.188 and 0.375. The predicted probability function of observing a specific count x in this study is P(x)=0.7826.

Keywords

References

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Article

The Existence and Stability of Inclusion Equations Type of Stochastic Dynamical System Driven by Mixed Fractional Brownian Motion in a Real Separable Hilbert Space

1Department of Mathematics, College of Education Almustansryah University


Applied Mathematics and Physics. 2017, 5(1), 1-10
doi: 10.12691/amp-5-1-1
Copyright © 2017 Science and Education Publishing

Cite this paper:
Salah H Abid, Sameer Q Hasan, Zainab A Khudhur. The Existence and Stability of Inclusion Equations Type of Stochastic Dynamical System Driven by Mixed Fractional Brownian Motion in a Real Separable Hilbert Space. Applied Mathematics and Physics. 2017; 5(1):1-10. doi: 10.12691/amp-5-1-1.

Correspondence to: Sameer  Q Hasan, Department of Mathematics, College of Education Almustansryah University. Email: dr.sameer_kasim @yahoo.com

Abstract

In this paper we presented The existence and stability of inclusion equations type of stochastic dynamical system driven by mixed fractional Brownian motion in a real separable Hilbert space with an illustrative example.

Keywords

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Article

Periodicity of Generalized Fibonacci-like Sequences

1“Dianet”, Laboratory of Digital Technologies, Moscow, Russia


Applied Mathematics and Physics. 2017, 5(1), 11-18
doi: 10.12691/amp-5-1-2
Copyright © 2017 Science and Education Publishing

Cite this paper:
Alexander V. Evako. Periodicity of Generalized Fibonacci-like Sequences. Applied Mathematics and Physics. 2017; 5(1):11-18. doi: 10.12691/amp-5-1-2.

Correspondence to: Alexander  V. Evako, “Dianet”, Laboratory of Digital Technologies, Moscow, Russia. Email: evakoa@mail.ru

Abstract

Generalized Fibonacci-like sequences appear in finite difference approximations of the Partial Differential Equations based upon replacing partial differential equations by finite difference equations. This paper studies properties of the generalized Fibonacci-like sequence Fn+2=A+BFn+1+CFn. It is shown that this sequence is periodic with period T>2, if C= -1, |B|<2.

Keywords

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