IOSR-JAP   Volume-14 ~ Issue-2 ~ Mar. – Apr. 2022

ABSTRACT: One of the national nuclear security regimes in Egypt is to develop a national database for all the nuclear and radioactive sources used in its premises. This database should contain all the information regarding nuclear material such as chemical composition, physical form and activity concentration. In this work, ten rock samples collected from Allouga Quarry face have been used to determine the uranium fingerprint of these samples through the calculation of different activity ratios, uranium age dating and lead concentration. High purity germanium detector (HPGe) was used to estimate the specific activities and activity ratios of different radionuclides in the assayed.......

Keywords: Uranium Fingerprint, Allouga Quarry, Southwestern Sinai, Age Dating.

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ABSTRACT: The activity concentrations of radionuclides level in the soil samples from the riverbank of Goronyo dam have been investigated using the high-resolution gamma-ray spectrometry to evaluate health hazards indices and excess lifetime cancer risk (ELCR). The minimum, maximum and mean activity concentrations of 238U, 232Th, and 40K in the soil sample was 13.34 Bq/kg -54.37 Bq/kg with a mean value of 34.7 Bq/kg ±12.4 Bq/kg, 21.56 Bq/kg -71.23 Bq/kg with a mean value of 45.5±13.8 Bq/kg, and 198.83 Bq/kg -891.63 Bq/kg with a mean value of 541.2±192 Bq/kg, respectively. The mean Radium equivalent activity concentrations (141.5±30.4 Bq/Kg), outdoor external dose (81.06±17.6 nGy/h), indoor external dose (342.25±70.4 nGy/h), and total average annual effective dose.......

Keywords: radionuclides, activity concentration of 238U, 232Th, and 40K. dose rate, riverbank of Goronyo, Excess lifetime cancer risk (ELCR), Radiation indices (I)

[1]. Khandaker, M.U., et al., Determination of radon concentration in groundwater of Gadau, Bauchi State, Nigeria and estimation of effective dose. Radiation Physics and Chemistry, 2021. 178: p. 108934.
[2]. Azeez, H.H., H.H. Mansour, and S.T. Ahmad, Transfer of natural radioactive nuclides from soil to plant crops. Applied Radiation and Isotopes, 2019. 147: p. 152-158.
[3]. Azeez, H.H., H.H. Mansour, and S.T. Ahmad, Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region. Polish Journal of Environmental Studies, 2020. 29(2).
[4]. Azeez, H.H., S.T. Ahmad, and H.H. Mansour, Assessment of radioactivity levels and radiological-hazard indices in plant fertilizers used in Iraqi Kurdistan Region. Journal of Radioanalytical and Nuclear Chemistry, 2018. 317(3): p. 1273-1283.
[5]. Shuaibu, H.K., et al., Assessment of natural radioactivity and gamma-ray dose in monazite rich black Sand Beach of Penang Island, Malaysia. Marine pollution bulletin, 2017. 119(1): p. 423-428

ABSTRACT: One of the branches of physics is a Quantum mechanics and is a theory of fundamental which gives details the nature of atoms and subatomic particles at the least scale of energy. In mechanics, physical problems are explained by algebraic and analytic methods. Through Elzaki Transform we are finding the Complementary solutions of one dimensional Schrodinger's time - independent wave equation for a particle in an infinite square well potential. This paper, we are talking about the Eigen energy values and Eigen functions of a particle in an infinite square well potential. We will find that general solutions of one dimensional Schrodinger's time - independent wave equation for a particle in an infinite square well potential have very interesting characteristics that each Eigen function is associated with a particular value of energy (Eigen energy value) of the particle confined inside an infinite square well potential.

Keywords: Eigen functions, Eigen values, infinite square well, Elzaki Transform

[1]. Advanced Engineering Mathematics by Erwin Kreysig 10th edition, 2014
[2]. Higher Engineering Mathematics byDr.B.S.Grewal 43rd edition 2015.
[3]. Engineering Mathematics by Subodh C. Bhunia, Srimanta. 1st edition, 2015.
[4]. Advanced engineering mathematics by H.K. Dass. Edition: Reprint, 2014.
[5]. Quantum mechanics by Satya Parkash. Edition: Reprint, 2016.

ABSTRACT: Despite relativism, Axial Doppler Shift, Transverse Doppler Shift and Acceleration Doppler Shift can be interpreted and derived by Equation of Light Speed C' = C + V, where Normal Light Speed C' (light speed observed at the reference point) is a vector summation of Absolute Light Speed C (light speed observed at light source 3 x 108 m/s) and Inertia Light Speed V (speed of light source observed at reference point). Absolute Light Speed is dependent on the local gravitational field and aging of the universe. Inertia Light Speed on the other hand is dependent on the relative motion between light source and reference point. As a result, subject to the relative speed and direction between light source and reference point, different types of Optical Doppler Shifts can be interpreted and derived by Equation of Light Speed such as Axial Doppler Shift generated by constant speed of light source in axial direction; Transverse Doppler Shift caused of constant speed of light source in various directions from sight; and Acceleration Doppler Shift resulted from constant acceleration of light source in axial direction..

Keywords: Special Relativity, General Relativity, Relativism, Photon Inertia Transformation, Equation of Light Speed, Doppler Effect, Acceleration Doppler Effect, Axial Doppler Shift, Transverse Doppler Shift, Acceleration Doppler Shift, Wu's Pairs, Yangton and Yington Theory

[1]. SamuelReich.https://drive.google.com/file/d/14vzw9TTeecVdvY60vq1I7XBxp4tnkwB/view.
[2]. Edward T. H. Wu. "Time, Space, Gravity and Spacetime Based on Yangton & Yington Theory, and Spacetime Shrinkage Versus Universe Expansion". American Journal of Modern Physics. Vol. 5, No. 4, 2016, pp. 58-64. doi: 10.11648/j.ajmp.20160504.13.
[3]. Edward T. H. Wu. "Hubble's Law Based on Wu's Spacetime Shrinkage Theory and Principle of Parallelism." IOSR Journal of Applied Physics (IOSR-JAP), 12(6), 2020, pp. 18-22.
[4]. Edward T. H. Wu "Hubble's Law Derived from Wu's Spacetime Shrinkage Theory and Wu's Spacetime Reverse Expansion Theory versus Universe Expansion Theory." IOSR Journal of Applied Physics (IOSR-JAP), vol. 11, no. 1, 2019, pp. 03-07

ABSTRACT: On absence of magnetic monopoles in the universe, true nature of magnetic force and magnetic field is revealed. It is found that asymmetric nature of electric field is responsible to produce the asymmetric electric force on charged particles, consequently a charged particle follows a curved path. Therefore, it seems that the charged particle is acting under two forces, one is the effective electric force and the other is an apparent force which is always perpendicular to the velocity of the particle. The apparent force can be the true nature of magnetic force. In electromagnetic (EM) waves, the apparent force is proportional to the frequency of the EM waves. As the apparent force is the true nature of magnetic force, the magnetic force increases with frequency of EM waves. Further, it is found that there is phase different of 90 degrees in electric field wave and magnetic field wave in EM waves.

Keywords: Electric field, Magnetic field, Magnetic monopoles, Asymmetric electric field, Asymmetric magnetic force, Apparent force, Field-field interactions, Phase difference

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