International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Table of Content: 9 July; 8(25)

July 2013

Assessment of arsenic levels in Guguletu and Langa rivers in Cape Town, South Africa

This study investigates the baseline environmental levels of arsenic (As) in two rivers; one of which traverses through Guguletu (R1) and the other running by the peripheral of Langa (R2) residential areas in Cape Town. The rivers were monitored for As in upstream, midstream and downstream stations for twelve months, during consecutive summer and winter seasons between 2011 and 2012. The collected water samples were...

Author(s): Akinsoji O., Fatoki O. S., Ximba B. J., Opeolu B. O. and Olatunji O. S.

July 2013

Design and evaluation of combined solar and biomass dryer for small and medium enterprises for developing countries

A small scale demonstration model consisting of a combined solar and biomass cabinet dryer with 3 equally spaced drying trays was designed, constructed and evaluated. The results, obtained using fresh yam chips as test material over a four day test period, were satisfactory and useful for optimization purposes. Maximum tray temperature of 53°C was obtained in combination with solar and biomass heating sources even...

Author(s): Okoroigwe E. C., Eke M. N. and Ugwu H. U.

July 2013

Geoelectrical evaluation of groundwater potentials of Bwari basement area, Central Nigeria

An investigation has been made of the groundwater potentials of Bwari basement area using solely geoelectric surveys. Twenty vertical electrical soundings along different transverses were conducted with maximum electrode spacing of 300 m. The results revealed that the area is characterized with 3 to 6 geoelectric subsurface layers with variability in resistivities and thicknesses of the different layers. The overburden...

Author(s): A. E. Adeniji, D. N. Obiora, O. V. Omonona and R. Ayuba

July 2013

Experimental study of air-water turbulent flow structures on stepped spillways

Stepped chute flows are characterized by intense turbulence and strong flow aeration, but most studies did not investigate the turbulence characteristics. In this study, highly turbulent air-water flows skimming down a large-size stepped chute were systematically investigated. An experimental study of detailed air-water flow properties measurements were introduced in different types of flow regimes on a stepped chute...

Author(s): Mohammad Reza Beheshti, Amir Khosrojerdi and Seyed Mahmud Borghei

July 2013

The ability to use light emtting diode (LED) as emergency, instead of gas lamp or tingistin lamp in home lighting

An electric circuit was made and connected to an alternative current that was passing through lower transformer. This process would produce a current the value of which was 500 mA and a voltage of 6 volt was used to charge battery. When the voltage source (alternative current) was cut, the circuit started lighting. We measured the charge and discharge in addition to time lapses to compare them with the results of the...

Author(s): Jassim M. Najim