Donatus ONYEDIKACHI Njoku

Donatus ONYEDIKACHI Njoku
Federal University of Technology Owerri | FUTO · Department of Computer Science

Lecturing

About

32
Publications
11,410
Reads
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14
Citations
Additional affiliations
January 2022 - present
Ebytech Integrated Services
Position
  • Group Managing Patner
Description
  • * Development and deployment of IT solution * General Networking Hub Deployment * IT outsourcing service. * Web development and ERP Development *IT training, Integration & Simulation and Modeling * Academic Research and Data Analysis
Education
October 2012 - December 2016
Federal University of Technology Owerri
Field of study
  • Computer Science
October 2005 - November 2009
Imo State University Owerri
Field of study
  • Computer Science

Publications

Publications (32)
Article
Full-text available
This paper, a fuzzy logic-based technique has been implemented to enhance the data delivery time and energy management capacity in a distributed wireless sensor network (WSN). A fuzzy logic system based on Mamdani model in the MATLAB simulation tool was implemented for distributed WSN using two input variables-status and message and one output vari...
Conference Paper
Full-text available
This paper has examined the effect of temperature compensator in thermal efficiency management in data centre. The use of computer room air control (CRAC) unit in ensuring thermal efficiency facilitate thermal process stability such that variation of temperature does not exceed predetermined value expected for effective working of data centre infra...
Article
Full-text available
The main basic components for selecting modulation technique are Bit Error Rate (BER) and Signal to Noise Ratio (SNR). This paper examined the performance of different modulation techniques including 8-QAM, 16-QAM, 32-QAM, 64-QAM and QPSK in Additive White Gaussian Noise (AGWN) and Rayleigh fading channels for wireless communication system using co...
Article
Full-text available
This paper present a hybrid intelligent control model for pH regulation in industrial chemical process. The dynamic model of pH system was developed as first order plus delay time (FOPDT) process in the form of a transfer function. A proportional integral and derivative (PID) compensator model was initially designed using PID Tuner in MATLAB. There...
Article
Full-text available
This paper has presented simulation analysis of information transmitting mechanism based on amplitude modulation (AM) technique. In AM technique, the amplitude of carrier signal is varied in proportion to the continuous time amplitude of the message signal. The study has modelled an AM modulating and demodulating system in MATLAB/Simulink environme...
Article
Full-text available
The Internet of Things (IoT) is changing the conventional way of doing business, worldwide. The focus of business is on reducing the cost that pertains to attracting and retaining customers, while rendering service to them. Although this may not be a new approach, the objective of this paper today is now more on improving Quality of Service (QoS) i...
Article
Full-text available
This paper has presented energy efficient analysis of a heterogeneous Wireless Sensor Network (WSN). Wireless Sensor Network (WSN) can be applied for a variety of purposes such as security services in military and police operations, civilian and commercial services. The topology and routing algorithm for WSN was validated through simulation experim...
Article
Full-text available
An Web application developers are still busy writing insecure code that only get fixed when they are noticed or become a problem. This has given room to structured Query Language Injection attack (SQLIA) that result to stealing sensitive information or bypassing authentication procedures on Web based data. Notwithstanding billons of dollar expenses...
Article
Full-text available
There is growing concern over the frequent cases of cost overruns, and underestimation in software cost, especially, indigenous software products. This has a lot to do with the choice of Cost-estimation tools, techniques and models deployed. Constructive Cost Model (COCOMO) II model has been adjudged as the most reliable and accurate. However, the...
Conference Paper
Full-text available
There are various methods in literatures for industrial chemical process design and control. The control processes uses computational algorithms developed with the aid of computer systems. These computational algorithms can be a conventional control strategy, which is the Proportional, Integral and Derivative (PID) controller can easily be implemen...
Article
Full-text available
The increasing number of COVID-19 cases around the world has subsequently triggered surge in the demand for Information and Communication Technology (ICT) to give "life" to the global economy and keep people together despite the physical separation as a result of the lockdown policy of various countries. This paper has studied the essential support...
Article
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This research paper was motivated due to delays encountered in health care services, difficulty in locating health personnel's within a given location, issue of discrimination amongst various hospitals and poor medical attentions given to patients during treatment. The Objective of this research is to develop a web based patient's emergency medical...
Article
Full-text available
Nigeria is among the countries with growing incidents of cybercrime activities. The Nation is also seen as a source of significant cyber threats targeting other nations of the world. This has made businesses in Nigeria to suffer reputational loss and the economy losing huge investment opportunities. However, certain measures have been put in place...
Article
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Modern day innovations in software development, deployment and maintenance now allow Java client applications to customize and reuse Java Application Programmable Interface (API) to suit their various purposes/tasks. Such java-based web/desktop applications dynamically send request to application servers for linking and loading of the required vers...
Article
Full-text available
This paper has presented positioning performance improvement of a servomechanism of hard disk drive (HDD) in a computer. It is desired to improve the transient response performance of servo positioning system of an HDD in computer. In order to do this, the mathematic equations representing the dynamics of the servomechanism were obtained and later...
Article
Full-text available
This study attempts to examine the activity, awareness and measures being adopted by staff and students in tertiary institutions to overcome the cyber security challenges. A total of one hundred and twenty (120) staff and students were sampled from three different tertiary institutions in Owerri-Imo State, Nigeria using random sampling technique. A...
Article
Full-text available
With the growing use of sophisticated electronic technology for e-financing globally, the introduction of PoS into the Nigeria economy has facilitated the ease of doing business without necessarily going about with huge cash in wallet. This paper has presented the prospects and challenges of Point of Sale (PoS) as electronic payment system in Niger...
Article
Full-text available
The development of state variable approach has been made possible by mathematical modelling of a system which, alongside the output, provides information on the state of the system variables at certain fixed points along the flow of signals. The paper has presented simulation of state variable compensator for linearized mechanical system. The dynam...
Article
Full-text available
This paper has presented simulation of performance response of state variables of a chemical boiler process. The transfer function of a boiler flow control process of a chemical plant was obtained. The transfer function was transformed into state space form to study the state variables of the system. An optimal regulator was designed using MATLAB p...
Article
Full-text available
This paper has presented discrete-time state space analysis of direct current (DC) servomotor based antenna positioning system. The need to improve reception and azimuth/elevation performance of satellite antenna has attracted researchers towards developing different control strategies for this purpose. Most of the control strategies use the classi...
Conference Paper
Full-text available
The rapid advancement in electronic commerce and its enabling technologies has given a dramatic increase to the use of credit cards for financial transactions. Credit cards have become the most popular mode of payment for both online, offline and regular purchases. Due to this popularity, cases of fraud associated with credit cards have also increa...
Article
Full-text available
This paper has presented simulation of performance response of state variables of a chemical boiler process. The transfer function of a boiler flow control process of a chemical plant was obtained. The transfer function was transformed into state space form to study the state variables of the system. An optimal regulator was designed using MATLAB p...
Article
Full-text available
A computer simulation of performance response of a digital audio tape (DAT) system. The objective of the paper is to design a discrete compensator that will improve the speed performance of the tape drive of a DAT system so that the heads follow the tracks on the tape. This will ensure fast response and accurate positioning of drive heads. In order...
Article
Full-text available
In this paper, the problem of maximizing customer satisfaction and minimizing cost of providing service were examined with the view of establishing optimal service level that will cater for the tradeoff between the cost of providing banking service to customers and waiting cost. To achieve this, multichannel, single stage queuing (M/M/S) model was...
Article
Full-text available
This paper has presented application and implementation of fuzzy logic controller (FLC) for feed chemical concentration process. It is desired to improve the chemical composition of a feed chemical concentration control system whose initial response was undesirable. In order to achieve the objective of the paper, the dynamic model of a typical chem...
Article
Full-text available
This research is aimed at developing instructional plans of multimedia English word formation to be used with children with low retention disabilities in Pupils. Giving the changes in the digital World over the last decades, Pupils of the current generation expect technology to be used in advancing their learning methodologies to an active multi-se...
Article
Full-text available
Cloud Computing is an adaptable, beneficial, tested and demonstrated stage for conveying businesses or end-users Information Technology (IT) administration and management over the Internet. Be that as it may, Cloud Computing usage is rising very quickly and raising various security challenges throughout today's reality. In cloud computing, the secu...
Article
Full-text available
This paper has presented performance improvement of printer belt drive for a computer system.A typical printer for a computer uses a belt-drive mechanism to laterally move a printing device across a printed page. It is required to improve the response performance of a printer so as to achieve efficiency, positioning accuracy, timing, high speed and...
Article
Full-text available
This paper has presented implementation of Kalman-Bucy filter for continuous time state estimation in Simulink. Many practical cases involving engineering science and embedded system requires filtering application. A Kalman-Bucy filter implemented in Simulink is used to estimate the output temperature of a typical heating system whose transfer func...
Article
Full-text available
The growth of the web and the unlimited use of database management systems have brought to the forefront and integrated interconnection of diverse and large numbers of information sources known as distributed databases. The major problem in such an environment is the time taken to responds to query and the cost of transmission across the distribute...

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