The region of Pointe-Noire (south-west of Congo-Brazzaville) located on a coastal sedimentary basin of about 6 000 km2 is primarily formed by unconsolidated rocks with very little interstice porosity. It is made by a complex multi-aquifers system interconnected. Previous studies...
Open access
Research Article10.9734/BJAST/2014/5796
This paper investigates the influence of diffusion annealing on some mechanical properties of 6063 aluminium alloy. Standard tensile and hardness test samples were subjected to diffusion annealing at 570ºC for 2, 2.5, 3 and 3.5 hours respectively prior to T6 tempering, another se...
Open access
Research Article10.9734/BJAST/2014/10446
Future wireless communication networks popularly known as beyond third generation (B3G) or Fourth generation (4G) networks will likely consist of heterogeneous wireless networks which will be IP-Centric based. These networks will offer a wide range of high data multimedia service...
Open access
Research Article10.9734/BJAST/2014/11396
The objective of this review paper, is the presentation of the basic features of the well known class of elliptic filters. Even though this is not a new subject, the theory of the elliptic filters found in most books is restricted only to a few resulting equations, due to the gre...
Open access
Research Article10.9734/BJAST/2014/10680
A unique phenomenon in physics has been revealed. Due to internal mechanical stress and defects the surface electrical conductivity of metallic objects can be modified. This conductivity modification even exists for some time after the failure of the mechanical attack. The data p...
Open access
Research Article10.9734/BJAST/2014/10159
Fruits of 8 Egyptian pomegranate cultivars grown in Upper Egypt, namely Asuity, Asuity beshoka, Asuity morkub, Manfalouty, Nab El-Gamal, Melasy, Sukkary and Maghal were compared for their nutritional status, fruit quality and volatile compounds. Obtained results showed that Asuit...
Open access
Research Article10.9734/BJAST/2014/10115
Aims: The paper presents the design, working and testing of an energy efficient improvised incubator, a general purpose heating and cooling equipment designed to maintain a constant temperature in the range of 5ºC to 50ºC. Study Design: Determination of biochemical oxygen demand...
Open access
Research Article10.9734/BJAST/2014/10593
Aims: The paper assesses water resource issues in the state of Mississippi using GIS mapping. Study Design: Adopted a mixscale appoach. Methodology: The aproach is applied to GIS and primary data connected to descriptive statistics by analyzing the impacts of water use through da...
Open access
Research Article10.9734/BJAST/2014/9249
This paper presents interval-valued 2-tuple prioritized aggregation operators for handling problems involving multiple attribute group decision making, where a prioritization relationship exists between attributes and decision makers. We first develop two interval-valued 2-tuple...
Open access
Research Article10.9734/BJAST/2014/10714
Energy has always been the essential, life-sustaining medium of exchange, in contrast to the notion that symbols of a monetary system, the effectiveness of influence peddling or even the application of force truly impact and direct social development. Starting with muscle power,...
Open access
Research Article10.9734/BJAST/2014/10249