MHD free convection, heat and mass transfer flow over a rotating inclined permeable plate with the influence of magnetic field, thermal radiation and chemical reaction of various order has been investigated numerically. The governing boundary-layer equations are formulated and tr...
Open access
Research Article10.9734/PSIJ/2015/15194
This paper focused on the thermal technique of activating pozzolanic activity of natural pozzolans, specifically calcined kaolinite clay in the form of metakaolin. The effect of heating temperatures over the range 450ºC-1050ºC in steps of 150ºC on the dehydroxylation of the kaoli...
Open access
Research Article10.9734/PSIJ/2015/13146
The recognition of the non-accelerating, periodic pattern of sea levels as described by the tide gauges measurements does not require any special mathematical tool. Providing enough data of sufficient quality have been recorded, If the classical linear fitting is used to compute...
Open access
Research Article10.9734/PSIJ/2015/15652
This is the first in a series of papers on Dirichlet-type approximation in the setting of Cauchy sequences in normed divisible groups. In particular, we demonstrate that the concept of approximation exponents are extendable to elements belonging to the completion of a normed uniq...
Open access
Research Article10.9734/PSIJ/2015/10666
Aim: Deposition of undoped and nitrogen doped amorphous diamond like carbon films and investigation of improved electrical, optical, field emission as well as structural properties of the films due to nitrogen doping. Materials and Methods: Nitrogen doped diamond like carbon (N-D...
Open access
Research Article10.9734/PSIJ/2015/15698
Terahertz time-domain spectroscopy (THz-TDS) has been used to investigate the optical properties of mono silicon solar cell. The sample was optically excited using continuous-wave (CW) light of wavelengths of 800 nm and 365 nm and the carrier density and mobility were extracted f...
Open access
Research Article10.9734/PSIJ/2015/15338
Geoelectrical investigation of soils in Umudike area of Abia State was undertaken in order to determine the competence of the soils as foundation materials. A total of 18 Vertical Electrical Sounding (VES), using Schlumberger configuration was carried out. The results revealed t...
Open access
Research Article10.9734/PSIJ/2015/14667
This work evaluates the external and internal structures of erosion sites in parts of Abia state, Nigeria and determines the gully erosion sensitivity of the sediments. Attributes such as lithology, land use, geomorphology, and climate were factored-in as gully erosion predisposi...
Open access
Research Article10.9734/PSIJ/2015/13821
In this paper, for creating highly sensitive and high-speed devices identified a new type of composite materials-fish scales, which are natural polymers. Fish scales are mineralized layer plates between which are collagen fibers. By the methods of Atomic - Force Microscope (AFM)...
Open access
Research Article10.9734/PSIJ/2015/13299
Petrophysical analysis and volumetric estimation was carried out using 3D seismic and well log data to evaluate the reservoir potentials of Otu Field in the Niger Delta of Nigeria. Three hydrocarbon bearing reservoirs (C10, D10 and D31) were mapped out of several identified sands...
Open access
Research Article10.9734/PSIJ/2015/15320