This paper presents the hydrodynamic effects of the submarine that moves horizontally, close to the sea bottom. Moving close to sea bottom, induces wall effects on hydrodynamic forces; resistance and lift. A bare hull of a submarine (torpedo shape), without appendages, in horizontal position and different distances from the bottom is considered. For evaluating the […]

Property development is regarded as a complex decision making activity and in most decision making situation the decision maker’s judgment is bounded in its rationality due to the decision maker’s own limited decision making ability and capability, further it has been suggested that decision makers rely on development valuation /appraisals from certified development valuers in […]

Technique for order preference by similarity to ideal solution (TOPSIS) approach coupled with entropy method was proposed to select automotive brake friction materials. The brake friction materials modified with lapinus and brass fibre by different weight, were designed, fabricated and characterize for tribological performance on a Krauss type friction tester and the test results were […]

The major objective of stabilizing Ebekpo residual soil was to ascertain the structural response to imposed mechanical systems. The second consideration was to establish levels of improvement of geotechnical properties for engineering applications. River sand and ordinary Portland cement were the two modifiers deployed for this laboratory experiments. Four different soil samples from four distinct […]

The inhibition of aluminium corrosion in hydrochloric acid solution by ethanolic extract of Maesobatrya barteri leaf was studied using weight loss and thermometric methods. The results obtained show that Maesobatrya barteri leaf extract significantly inhibited the corrosion of aluminium in HCl solution. Inhibition efficiency was found to decrease with increase in extract concentration and temperature. […]

Concentrations of Pb, Cu, Cd, and Zn were measured in Soil samples in the study area. Averages of concentrations of Pb (55.54mg/kg), Cu (202.94mg/kg), Cd (35.47mg/kg) and Zn (51.83mg/kg) in the soil samples were compared with Canadian soil quality guidelines (CSQGs) of Canadian Council of Ministers of the Environment.(CCME), Federal Environmental Protection Agency (FEPA), Nigeria […]

The discovery and introduction of antimicrobials to clinical medicine was one of the furthermost medical achievements of the 20th century that revolutionized the treatment of bacterial infections. However, the continuing appearance of populations of antimicrobial-resistant pathogenic bacteria resulting from use, misuse, and abuse of antimicrobials has today become a major global health worry. Antimicrobial resistance […]

In the study, the researchers reveal the application of some selected forecasting models. The use of qualitative research method was employed to analysis the collected products data of the case company. The models applied were double exponential smoothing and winters model. The models reveal the future products demand of NNPC Mega Station. The results show […]

In order to study the inheritance of nitrogen use efficiency (NUE) traits as indicators of low-N tolerance in bread wheat, plants from a six-parental diallel cross, excluding reciprocals, were grown in the field for two seasons using a randomized complete block design with three replications in two separate experiments; the first under no N fertilization, […]

This work focuses on the influence of different parameters on the entropy generation and the Bejan number in a cavity filled with a Cu-Water nanofluid, with two semicircular isothermal walls associated to the vertical sides. This investigation was divided in two parts. The first concerned the case where the centers of the two isothermal semicircular […]