The electric power grid is a crucial infrastructure in our society and is always a target of
malicious users and attackers. In this paper, we first introduce the concept of unidentifiable …

This paper presents the design and construction of a smart-home automation system using
nodeMCU and Google assistant. The device consist of Enhanced Universal Synchronous …

Electricity is central to the existence of human being such that a country's electric power
generating capacity is equated with its level of development. Several Nigerians have lost …

Loss of hearing power might be due to several reasons such as; old age, hearing loud
sound that can damage the auditory system and so on. Hearing aid device is an elecronic …

This article presents the design and construction of a transformer-typed Switch-Mode Power
Supply (SMPS) with multiple DC outputs. The developed circuit utilized the SG3524 control …

This paper presents the design and implementation of a 1.5 KVA inverter system. The aim of
the paper is to evaluate the effect of optocoupling technology on inverter system. The …

An automatic switching device with a remote control system has been designed and
constructed to set a cooling system into operation when the ambient temperature is above …

1.5 KVA pulse width modulation inverter system. This device is used to convert the DC
generated by battery to AC output. The developed circuit utilizes SG3524 control circuitry. It …

Hearing is one of the five senses, therefore, it is very important that the human ear be able to
detect sound in the audible frequency range. However, in some cases, certain individuals …

A low-cost hearing aid device was designed and constructed to produce an amplified sound
for people with hearing loss. A 9V dc was used as the power supply. The condenser …