An Object-Oriented Software Model for Students’ Registration and Examination Result Processing in Nigerian Tertiary Institutions

The principles of Object-Oriented Software Engineering are employed to model a software application known as Undergraduate Registration and Examination Processing System (SPERU) for Nigerian Tertiary institutions. Rapid Application Development (RAD) tools are utilized in its implementation to achieve an excellent software system. SPERU is herein presented , as a typical instance of a well modelled software system, that testifies to the beauty, power and supremacy of the Object-Oriented paradigm The result of applying software predictor metrics indicates that SPERU is reliable and elegant

RESOLUTION OF EXTREMISATION PROBLEM USING DUALITY PRINCIPLE

The use of duality principle for characterizing solution of general optimization problem posed in the        Hilbert space was considered. The existence and uniqueness of solution are guaranteed by formulat-        ing the minimum problem in a dual space. Furthermore, the solution is shown to be aligned

Predictive models of current, voltage, and power losses on electric transmission lines

A modern and civilized society is so much dependent on the use of electrical energy because it has been the most powerful vehicle for facilitating economic, industrial, and social developments. Electrical energy produced at power stations is transmitted to load centres from where it is distributed to its consumers through the use of transmission lines run from one place to another. As a result of the physical properties of the transmission medium, some of the transmitted power is lost to the surroundings. The overall effect of power losses on the system is a reduction in the quantity of power available to the consumers. An accurate knowledge of transmission losses is hinged on the ability to correctly predict the available current and voltage along transmission lines. Therefore, mathematical physics expressions depicting the evolution of current and voltage on a typical transmission line were formulated, and derived therefrom were models to predict available current and voltage, respectively, at any point on the transmission line. The predictive models evolved as explicit expressions of the space variable and they are in close agreement with empirical data and reality

Optimal Control of Air Pollution

.In this article, mathematical expressions that represent the dynamics of air pollution associated with electric power generating industries ( in particular, atmospheric Co2 ) is proposed using an optimal control theory approach. The model is characterized via Pontyagins maximum/minimum principles. Electric power plants efficiency improvement was introduced through applying technologies. The optimality system is established in attempt to minimize both the cost of applying technology for efficiency improvement as well as the atmospheric emission while maximizing the electric power generation output

Case Report Congenital Giant Hydroureteric Cistern in a Duplex System of an Infant

Duplex collecting system is a congenital genitourinary anomaly commonly found incidentally. Our experience with a duplex system associated with giant hydroureter presenting as mobile abdominal swelling that was noticed from birth, constipation, and failure to thrive is described. Ultrasound and IVU did not assist in making the diagnosis, while a barium enema suggested a colonic duplication. Congenital giant hydroureter should be considered as a differential diagnosis in infants with cystic abdominal swelling. A preserved renal moiety attributed to a dilated ureteric cistern was a unique theory in this case