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Volume 10, No. 1, 2017, 1438 H

 English Articles

 

 

Calculation of Neutron Fluxes and Radiation Doses for Neutron Irradiator 226Ra-Be Using the MCNP5 Code

The irradiator 226Ra-Be unit available at the Physics Department of the Sciences Faculty, Damascus University, was simulated by using the MCNP code. Calculations of neutron fluxes and radiation doses were carried out.  ...

 

A. AlTaani, M. Nahili and A. Bitar

JJP, 2017, 10(1) ,    1-10

Analytic Approximate Solution of Blasius Equation Using
Homotopy Perturbation Method (HPM)
 

In this paper, an incompressible viscous fluid flow over a flat plate is presented. The homotopy perturbation method (HPM) is employed to solve the well-known nonlinear Blasius differential equation. We used this new analytic approximated technique, which gave us a very close result to the exact solution. The obtained results have been compared with numerical and exact solutions of Blasius equation, showing the high accuracy of the results obtained in our study.

 

Hamza Berrehal and Abdelaziz Maougal

JJP, 2017, 10(1) , 11-16

Free Breathing Abdominal Imaging with Fat-Water Separation Using 3D Radial Stack-of-Stars Trajectory

In earlier studies of fat-water separation using dynamic imaging applications, the three-dimensional (3D) MRI failed to provide high spatial and temporal resolution. This work proposes a fat-water separation strategy in the abdomen during free breathing using the 3D stack-of-stars (SOS) radial sampling technique. Radial trajectories are less sensitive to motion and have a higher sampling density for the central k-space, allowing for better performance in capturing dynamic information. ...

 

Riad S. Ababneh

JJP, 2017, 10(1) , 17-22

Assessment of Natural Radioactive Concentration Levels in the Oil Drilling Wells in Erbil Governorate Blocks

The activity concentrations of 226Ra, 232Th and 40K in the core samples obtained from Erbil oil blocks have been measured by using NaI(TI) gamma ray spectrometry. Radiological hazard indices were evaluated from the activity concentrations of these radionuclides in order to estimate health effects of the exposure of the public to radiation at the studied area. The calculated Radium equivalent activity (Raeq) varied from (33.48) to (321.13) Bq.kg-1 with a mean value of (127.50) Bq.kg-1. ... 

  ...

 

Ahmed I. Samad,   Ali H. Ahmed and Saman K. Ezzulddin

 

JJP, 2017, 10(1) , 23-32

Optical and Structural Characterization of Dip Synthesized Al-B Co-doped ZnO Seeded Platforms for ZnO Nanostructures
 

Zinc oxide and aluminum-boron co-doped zinc oxide (Al-B:ZnO) thin films have been dip coated on glass substrates using Sol-Gel technique. The ZnO solution was prepared by using zinc acetate dihydrate (ZAD) as starting material. Ethanol and citric acid were used as solvent and solution stabilizer, respectively. Doping of Al-B was achieved by adding a proper molar ratio of aluminum nitrate (Al(NO3)3 9H2O) and boric acid (H3BO3) to the final ZnO solution.  ...

 

A. A. Ahmad,

A. M. Alsaad,        

Q. M. Al-Bataineh, 

A. A. Bani-Salameh,

H. M. Al-Khateeb and

M. A. Al-Naafa

JJP, 2017, 10(1) , 33-48

Size-Fractionated Number and Mass Concentrations in the Urban Background Atmosphere during Spring 2014 in Amman Jordan

WiThe number size distribution of urban aerosols was never measured in Amman, Jordan. In this study, we aim at investigating the mean number size distribution (optical diameter 0.310 m) and size-fractionated particle number and mass concentrations during spring 2014 in the urban background atmosphere of Amman, Jordan.  ...

 

Tareq Hussein and

Alaa Betar

JJP, 2017, 10(1) , 49-58