ABSTRACT In this work, the state of stress between adhesively bonded single lap-joints was determined. The state of stress between adhesively bonded single lap-joints was determined by using a linear elastic analysis and experimental testing. In the analysis part of this work, the shear and normal stresses in an adhesively bonded single lap –joints were predicted by subjecting the joint to tension; shear force, and bending moments. Differential equations were used to model the problem and ...
A temperature sensor is a device that reads the temperature of the surrounding and relays the temperature either in degrees Celsius or Kelvin. The LM335 temperature sensor (used in the experiment) gives out the temperature in degrees Celsius. It is calibrated to output the millivolt voltage reading in proportion to its units of measurement i.e. it outputs 10mV/0K. The main objective of the project was to build a temperature sensor circuit using a LM335. As part of the project, it was als...
The purpose of this experiment was to obtain a basic knowledge on digital electronics and in turn set the stage to perform the analysis and design of complex digital electronics circuits. It also served as an opportunity to learn how the motion sensor worked by using it to turn the LED on/off. This was done by examining results that were brought forth after carrying out the experiment. The results were analyzed and observations made in order to draw accurate conclusions from the entire p...
This project is about water level indicator using raspberry pi. In this project we used led to indicate the different levels and the raspberry pi to display were exactly the level is at in terms of percentages. The simple water level indicator will activate an active buzzer which will make a continuous noise when a certain level of water is reached (maximum).
Traditional networking architectures have many significant limitations that must be overcome to meet modern IT requirements. To overcome these limitations; Software Defined Networking (SDN) is taking place as the new networking approach. One of the major issues of traditional networks is that they use static switches that cause poor utilization of the network resources. Another issue is the packet loss and delay in case of switch breakdown. This research proposes an implementation of a ...
Abstract The GSM Based Water Distribution Monitoring and Control System improves the water distribution by providing the automation of water levels in the tanks and monitoring and control of water flow in the distribution network. Water sensor detects the water level in the tanks and then sends signal to the microcontroller unit for actuation of valve and pump. The water monitoring system can detect leakages in the distribution pipeline. If a leakage occurs, an upstream solenoid valve autom...
ABSTRACT The investigation of nitrate adsorption onto Brachystegia spiciformis leaf powder from waste waters was performed. Characterization for the functional groups of the biomass before and after nitrate sorption as well as after desorption was done using an FTIR spectrophotometer. The effect of pH, contact time, dosage and initial nitrate concentration was investigated. The Brachystegia spiciformis leaf powder had amine, carboxylic and hydroxyl groups that were involved in nitrate remova...
ABSTRACT With the increase in use of internet access across the world, there has been a shift from classic wired connection technology to the faster and efficient mobile wireless solutions. Zimbabwe as a country is also experiencing this upsurge. However, its hindered by the lack of flexible connection solutions in the densely populated rural areas. A perceived “digital divide” exists between the rural and urban population. This study seeks to explore a new way of breaking this divide by...
Abstract The design and implementation of this real time taxi monitoring and Passenger inventory system is meant to unleash a new era of systematic taxi operation in Zimbabwe. It introduces a tight close monitoring environment for taxis so as to maximise on returns from the business. In the prevailing situation where there is a general lack of effective monitoring of taxis the employees run a parallel business of their own using the same taxis. This inherent inefficiency in the system adver...
ABSTRACT The effects of particle size and particle size distributions of three clay samples, on their modulus of rupture were studied. The three clay samples were collected from natural clay deposits at Nsu; Ohiya- Umuahia; and Awo-Omamma all in south eastern Nigeria. The particle size analysis of the clay samples was done by laser diffraction in wet suspension mode and the results disclosed that Awo-Omamma clay has greater proportion...
ABSTRACT This work analysed the current state of power system in Nigeria with emphasis on distribution system using Akwa Ibom Distribution System as a case study. The components of the study system were analyzed. This work adopted the analytical and simulation approach to reliability and stability assessment. Analysing the system the way it is shows that the system was not reliable and stable. The outcome gotten from the base state of the system confirmed this. The results for the current sta...
ABSTRACT This project report is an excerpt of the design of a Micro-controller based Access Control Lock system implemented to assist the university with the aid of security personnel in the prompt detection of students who have not completed necessary fees payment and to checkmate the problem of the ever increasing rate of examination impersonation perpetuated by students. The Micro-controller based Access Control Lock system is an automatic software-based system having two major par...
Abstract —Radiation on BPLC caused by presence of high frequency communicating signals is discussed in this paper. The paper presents the derived mathematical model which expresses electric field radiation behavior of BPLC system. The model was developed using the combined numerical method of moment (MOM) and transmission line transient (TLT) method utilizing Maxwell integral equation to predict radiation over the line. The mathematical model simulation results for electric field radiation ...
ABSTRACT The basic idea deals with detecting the voltage collapse ahead of time to provide the operators a lead time for remedial actions and for possible prevention of blackouts. To detect cases of voltage collapse, pattern recognition in conjunction with power system simulator for engineering (PSSE) program was created and then deployed in Nigeria 330KV integrated power system to develop Regularized Least Squares Classification (RLSC) as well as Classification and Regression Trees (...
ABSTRACT This paper presents the operation of centrifugal pumps as turbines for micro hydropower application. Block diagrams are used to present components required from intake chamber to hydropower plant and their electrical energy mechanism for micro hydropower system. A comparison of operational parameters of pump as turbine and conventional turbines is discussed. Also, the paper discusses three types of methods for selecting the centrifugal pump as turbine based on the head, flow rate, r...