Dr.kennedy Chinedu Okafor

Dr.kennedy Chinedu Okafor

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Hardware Description Language (Hdl): An Efficient Approach to Device Independent Designs for Vlsi Market Segments

Hardware Description Language (Hdl): An Efficient Approach to Device Independent Designs for Vlsi Market Segments

Contemporarily, owing to astronomical advancements in the very large scale integration (VLSI) market segments, hardware engineers are now focusing on how to develop their new digital system designs in programmable languages like very high speed integrated circuit hardware description language, (VHDL) and Verilog and consequently target it to Complex programmable logic devices (CPLDs) and Field programmable gate arrays (FPGAs). This paper focuses on using VHDL, to design an application specific integrated circuit (ASIC) liquid dispenser controller system while targeting the device independent architecture (Ultra 3700 CPLD series) for synthesis ,optimization and fitting to realize the design. The ASIC controller has two bin cans to dispense regular and diet drinks. The system dispenses a drink if the user activates a button for that drink and at least one can is available. A refill signal appears when both bins are empty. Activating a reset signal informs the system that the machine has been refilled and the bins are full. The design methodology is presented with other details in the body of this paper.

 
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Mechatronics Automation Using Remote Dtmf Codes With Text Message Alert Feedback

Mechatronics Automation Using Remote Dtmf Codes With Text Message Alert Feedback

With the current interest in household and industrial automation, developing a smart system that monitors and controls household appliances, industrial machines, military/hospital devices and security gadgets, etc, with low latency response is pertinent. This paper proposed Mechatronics based feedback vector control with Ardinuo IoT device. An embedded process lifecycle framework is employed in realizing the system. Dual tone multi-frequency (DTMF) codes and SMS feedback are applied. The system features Arduino UNO, GSM module with SIM card, ULN2003, DTMF decoder (MT8870D), buffer (74HC24), 12v-Relay, Bulb with lamp-holder, connecting wires, PCB, 16x2 LCD, Power supply unit, Mobile cell phone, and an external interface box module. A design algorithm that demonstrates the sequence of control operation is implemented. An initial satisfactory tests result has been obtained from Protus ISIS simulation. This work concludes that sensing and actuation dynamics with IoT edge computing offers the smartest capability for Industry 4.0

 
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Leveraging Fog Computing for Scalable Iot Datacenter Using Spine-Leaf Network Topology

Leveraging Fog Computing for Scalable Iot Datacenter Using Spine-Leaf Network Topology

With the Internet of Everything (IoE) paradigm that gathers almost every object online, huge traffic workload, bandwidth, security, and latency issues remain a concern for IoT users in today’s world. Besides, the scalability requirements found in the current IoT data processing (in the cloud) can hardly be used for applications such as assisted living systems, Big Data analytic solutions, and smart embedded applications. This paper proposes an extended cloud IoT model that optimizes bandwidth while allowing edge devices (Internet-connected objects/devices) to smartly process data without relying on a cloud network. Its integration with a massively scaled spine-leaf (SL) network topology is highlighted. This is contrasted with a legacy multi-tier layered architecture housing network services and routing policies. The perspective offered in this paper explains how low-latency and bandwidth intensive applications can transfer data to the cloud (and then back to the edge application) without impacting QoS performance. Consequently, a spine-leaf Fog computing network (SL-FCN) is presented for reducing latency and network congestion issues in a highly distributed and multilayer virtualized IoT datacenter environment. This approach is cost-effective as it maximizes bandwidth while maintaining redundancy and resiliency against failures in mission critical applications.

 
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Security Qos Profiling Against Cyber Terrorism in Airport Network Systems

Security Qos Profiling Against Cyber Terrorism in Airport Network Systems

Attacks on airport information network services in the form of Denial of Service (DoS), Distributed DoS (DDoS), and hijacking are the most effective schemes mostly explored by cyber terrorists in the aviation industry running Mission Critical Services (MCSs).This work presents a case for Airport Information Resource Management Systems (AIRMS) which is a cloud based platform proposed for the Nigerian aviation industry. Granting that AIRMS is susceptible to DoS attacks, there is needed to develop a robust counter security network model aimed at pre-empting such attacks and subsequently mitigating the vulnerability in such network. Existing works in literature regarding cyber security DoS and other schemes have not explored embedded Stateful Packet Inspection (SPI) based on OpenFlow Application Centric Infrastructure (OACI) for securing critical network assets. As such, SPI-OACI was proposed to address the challenge of Vulnerability Bandwidth Depletion DDoS Attacks (VBDDA). A characterization of the Cisco 9000 router firewall as an embedded network device with support for Virtual DDoS protection was carried out in the AIRMS threat mitigation design. Afterwards, the mitigation procedure and the initial phase of the design with Riverbed modeller software was realized. For the security Quality of Service (QoS) profiling, the system response metrics (i.e. SPI-OACI delay, throughput and utilization) in cloud based network were analysed only for normal traffic flows. The work concludes by offering practical suggestion for securing similar enterprise management systems running on cloud infrastructure against cyber terrorists.

 
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Stem Education: A Tool for Sustainable National Capacity Building in a Digital Economy

Stem Education: A Tool for Sustainable National Capacity Building in a Digital Economy

Currently, Nigerian college students rank low among students of both the industrialized and developing countries when it comes to achievement in Science Technology, Engineering and Mathematics (STEM). This is a fact borne out in test scores and other assessments of academic achievement in various examinations. This paper defines STEM as an educational taxonomy used in the context of multidisciplinary domain when addressing educational policy and curriculum choices in schools to improve competitiveness in science and technology development. The perspective in this paper shows that STEM has implications on the workforce development, national security concerns and other related policies. In this paper, STEM definition as it relates to the new digital economy and knowledge era for national capacity building is presented. A modified framework for STEM education (MSTEM) from primary to tertiary level in Nigeria is proposed while articulating its merits. Best practices in M-STEM initiatives including programme implementation, sustainability and professional developments are discussed. The paper concludes by articulating the open challenges while discussing the remediation

 
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   Niglt Ver 1.0: An   Indigenous   Language   Translator  Application   for   Major Ethnic Groups in Nigeria

Niglt Ver 1.0: An Indigenous Language Translator Application for Major Ethnic Groups in Nigeria

National Integration can effectively be realized through a Common Unified Framework (CUF) that will enable the major ethic groups in Nigeria to appreciate communication in their respective languages. This paper developed a language translator application software refered to as NigLT ver1.0, which focus on translating words in the three major Nigerian Languages, (English, Hausa, Igbo Language, and Yoruba Language). This paper argues that the application will assist the citizenry to familiarize with the grammatical structures, meanings and other features of the major Nigerian languages. The application was developed with JAVA programming language and BabelMap Unicode generator, as such making it adaptable to any computer system. In this context, this paper presented the system flowchart and the design methodology This solution will enable end users quickly understand and adapt to its usage.

 
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Aqua-Tronics: An Intelligent User-Friendly Aquarium Control System for Efficient Fish Production in Nigeria

Aqua-Tronics: An Intelligent User-Friendly Aquarium Control System for Efficient Fish Production in Nigeria

This paper presents the design and implementation of a universal intelligent control system that automates the operation of an aquarium system called Aqua-tronics. In our approach, the water temperature control, lighting of aquarium environment, feeding of fish, draining and infilling of the aquarium tank are all automatically controlled by a software embedded in an intelligent controller. The aquarist through the keypad interfaced to the controller can select the range of temperature and the feeding time, thus the system is universal and user-friendly. Essentially, the cloudiness of the water is detected automatically using dirty water detector enabling the controller to drain and refill the tank as at when due. The prototype aquarium was simulated using Proteus development tool before the building of the physical system. Summary tests are also outlined in this work.

 
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Dr. Kennedy Chinedu Okafor is a Senior Member of the IEEE,USA, an Expert in HPC/Cybersecurity. He had his B.Eng in Electrical Electronics Engineering from Enugu State University of Science and Technology,(ESUT), M.Eng and Ph.D in Electronic Engineering from the University of Nigeria Nsukka, (UNN), respectively. He is the CEO of Kswitche Consults, a leading R&D organization in Nigeria and have worked with Electronic Development Institute (Former Center For Adaptation of Technology-CAT), Awka under National Agency for Science and Engineering Infrastructure, (NASENI-FMST), Nigeria as a Senior R&D Engineer from 2006-2014. He has various vendor certifications including CCNA,CCNP (Fog, edge, routing and switching), ComPTIA A+, and Server+. In 2009, he served with the House of Representative Committee on Cyber-security and Information Protection Bill. In 2010, he executed a major World Bank project (ICT) in Anambra State. Also, he was the lead consultant in the Biometric Data Capture for PHCN in 2011. He has worked in different areas of advanced digital electronics and computer systems design such as Smart Meters, Cloud SOA applications, Smart green automation with IoTs, Cyber-Physical Apps, Modelling/Simulation of Real Time Systems; FPGA/CPLD implementations using VHDL WARP Cypress, Quatus II, JAVA Netbeans, MATLAB Sim & Riverbed Modeller. His areas of interest include - HPC Design Infrastructure, Middlewares, Embedded /VLSI computational intelligence, Enterprise-Wide Systems, & CyberSecurity. He has about 125 technical publications, and has presented papers in both Int'l and local conferences. He is a Lecturer in the Department of EEE/Mechatronics Engineering, Federal University of Technology, Owerri, (FUTO). Professionally, he is a cooperate Member of NSE, NCS, IAENG, AASCIT, CSEAN & COREN registered. He is a member of editorial board in IJCAC (USA),IJACSA,(UK), IJISP(USA), SJET(India), Computer Science Archive,(USA),etc indexed in ISI Web of Science (Thomson Reuters).

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