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Journal Cover International Journal of Physical Sciences
  [SJR: 0.12]   [H-I: 21]   [0 followers]  Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 1992-1950
   Published by Academic Journals Homepage  [108 journals]
  • Natural radioactivity level of clay, ceramic, and stone cooking dishes in
           Saudi Arabia

    • Abstract: Standards and guidelines are needed in the manufacture of household cooking dishes from clay, ceramic, and stone in Saudi Arabia. The radioactivity levels due to the presence of 40K, 232Th, and 226Ra in these materials were determined using gamma spectrometry equipped with high purity germanium (HPGe) detector. The activity concentrations of 226Ra ranged from 5.75 Bq kg1 (Yemen stone sample)...
      PubDate: Fri, 30 Sep 2016 00:00:00 +010
  • Electrical resistivity and Seebeck coefficient of Pd81Ge19

    • Abstract: We report on the simultaneous measurement of resistivity and Seebeck coefficients in samples of Pd81Ge19 ribbons prepared by the melt spinning technique method and having a typical dimension of 40.0 mm 1.75 mm 0.028 mm. The investigation was performed using a new completely automated device in a large temperature range (from room to 700C). Structural changes, crystallization times and heat...
      PubDate: Fri, 30 Sep 2016 00:00:00 +010
  • Characterisation of mortars from the Ottoman period in Algiers (Algeria)
           through their physical and chemical properties

    • Abstract: In traditional and historical Algerian architecture, one can find a series of mortars that were used for grouting and coating masonry. Although Algeria has a very rich heritage park, our interest mainly focuses on the mortars used in buildings from the Ottoman period, in Algiers and in particular, the mortars of the Citadel of Algiers, the Casbah and villa Mahieddine. This study allows us to...
      PubDate: Fri, 16 Sep 2016 00:00:00 +010
  • Development of a real time blood pressure, temperature measurement and
           reporting system for inpatients

    • Abstract: In this work, a real time blood pressure, temperature measurement and reporting system for inpatients was developed. The function of this system is to constantly measure the blood pressure and temperature of a patient and send the measured values to the medical doctor or other relevant care givers through wireless link. The system is built around the STM32F103C8 Microcontroller programmed in...
      PubDate: Fri, 16 Sep 2016 00:00:00 +010
  • Mineral determination and radiological risk caused by geological
           formations from Iron Ore in Wadi Sawawin, Duba, Saudi Arabia

    • Abstract: Fifteen iron ore samples collected from Wadi Sawawin, Duba, Saudi Arabia were analysed using X-ray diffraction in order to determine mineral composition. Atomic absorption analysis was used to determine concentrations of Al, Ca, Fe, K, Mg, Bi, Pb, Th and U. Natural radioactivity concentrations were determined using gamma-ray spectrometry based on a hyper pure germanium (HPGe) detector; conce...
      PubDate: Tue, 30 Aug 2016 00:00:00 +010
  • The thermal behaviour of gases under the influence of infrared-radiation

    • Abstract: In contrast to the usual spectroscopic methods, the temperature of a gas embedded in a tube was measured here and not the intensity loss of the radiation. In order to minimize the interference by the tube, light-weight building materials were used, preferably Styrofoam, transparent plastic foils and aluminium foils. Sunlight as well as infrared (IR)-bulbs was employed as radiation sources, w...
      PubDate: Tue, 16 Aug 2016 00:00:00 +010
  • The third fundamental interaction of atoms

    • Abstract: It is shown that the existence of fundamental interactions cannot explain the chemical covalent bond. The existence of a new (hitherto unknown) fundamental interaction of atoms-internuclear attraction, which adequately interprets the chemical covalent bonding was proposed. Key words: Fundamental interaction, chemical covalent bonding, internuclear attraction.
      PubDate: Tue, 16 Aug 2016 00:00:00 +010
  • Measurement of natural radioactivity in selected samples of medical plants
           in Iraq

    • Abstract: In present study, natural levels of radiation in some selected medical plants existing in the Iraqi stores were estimated to determine any activity concentration, radium equivalent and internal hazard index due to radionuclide, of 238U, 232Th as well as 40K, which occurs naturally. This activity concentration was identified by gamma-ray spectroscopy (NaI(Tl)). The findings indicate that, the...
      PubDate: Sat, 30 Jul 2016 00:00:00 +010
  • Development of an identity management system for a web proxy server in a
           tertiary institution using anonymity technology

    • Abstract: The inability of a region to access a webpage, because of the ban being placed on users from that region as a result of its location policy, has led to this study. This problem is often solved by anonymizing web traffic by using The Onion Router (TOR). These tools, however, suffer from the problem of exposure of identity and also lack the ability to monitor web users. This study describes in...
      PubDate: Sat, 16 Jul 2016 00:00:00 +010
  • Light source estimation using feature points from specular highlights and
           cast shadows

    • Abstract: A method for light sources estimation is proposed in this paper. The method utilizes feature points in cast shadows to estimate near light source positions from estimated source directions using specular highlights. There are several methods that can be used to estimate light sources from scene images, using either cast shadows or specular highlights. However, most of them are limited to dir...
      PubDate: Sat, 16 Jul 2016 00:00:00 +010
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
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