Published Articles


Paper ID: AJ2342202021117
Paper Title: IMPACT OF VELOCITY AND HYDROGEN POTENTIAL ON CORROSION OF MEDIUM CARBON STEEL IN FRESH WATER ENVIRONMENT
Lead Author: Okeahialam, Solomon I.
Co-Author(s): Ekenyem, Stan C., Moses, Joseph and Okeahialam, Onyinyechi A.

There is a knowledge gap on the effect of velocity and hydrogen potential (PH) on the corrosion of medium carbon steels in fresh water and the desire to provide fundamental data for the behavior of medium carbon steel in various environments form the basis for the investigation. The corrosion study was carried out every 14days for a total of 98 days using weight lose method. The factors which are believed to affect the corrosion of metals such as the PH of the environment, velocity of the flow water, and possible presence of sulphate reducing bacteria (SRB) were investigated.

Paper ID: AJ23422020186110
Paper Title: GEOSPATIAL EVALUATION OF THE IMPACT OF IYIEKE AND EHUOMA WETLAND ECOSYSTEM RESOURCES FOR HOUSEHOLD FOOD SECURITY IN AFIKPO NORTH L.G.A OF EBONYI STATE SOUTH EASTERN NIGERIA.
Lead Author: Otunta-Mayanga Gyspyson Alexius
Co-Author(s): Ngozi Emeka Ekuma; Akombo Godwin

This research was carried out in order to evaluate the impacts of Iyieke and Ehuoma wetland ecosystem resources on household food supply in Afikpo north L.G.A of Ebonyi state due to the problems of the effects of climate change, herdsmen/farmers clash on Iyieke and Ehuoma wetlands ecosystem resources while the objectives include:1. To determine the status of Iyieke and Ehuoma wetlands ecosystem resources from 1986 to 2018 for household food security. 2. To report on the Iyike and Ehuoma wetlands resources for household food security. Data was collected through satellite imageries, secondary and questionnaire means. Image processing was done using the ENVI CLASSIC 5.0 and IDRISI SELVA software (Clark Labs, Worcester, MA, USA).Landsat 5TM, Landsat 8 OLI/TIRS and ETM+ were imported into ENVI CLASSIC 5.0 environment for radiometric corrections while model prediction was performed in IDRISI SELVA 17.0. Image composites was performed using near-infrared band 4, red-band 3 and green band 2 for both Landsat 5TM and ETM+ while Landsat 8 OLI/TIRS composite was performed using bands 5 ,4,3 of the imagery. This information in combination with obvious spectral signatures was used to identify 15 places where land category persists over time. These places were used to generate ground reference information to perform accuracy assessment for the classified maps. The maximum Likelihood classification algorithm was performed for the image classification of the study area. The 1987 Landsat 5TM, 2002 ETM+ and 2017 Landsat 8 OLI/TIRS imageries were classified into five (5) categories: wetland, cultivation, settlement, water and forest. The overall accuracy assessment (OA) and Kappa Coefficient (K) was determined in GIS environment. Cluster random sampling technique was used in the study. A sample size of 60 households was chosen in each cluster. This gives us a total sample size of 360 household. Change detection and CA-Markov analysis was used to determine the status of Iyieke and Ehuoma wetlands ecosystem resources for household food security. The land use change detection was divided into three conditions; past, current and future time. Past and current conditions were analyzed by using supervised classification and image differencing methods. Meanwhile, the future condition was analyzed by using a Markov chain method based on past and current land uses. Descriptive statistics and Excel for windows software were used including frequencies and percentages respectively. The results thereof indicate that Iyieke and Ehuoma wetland ecosystem is very dynamic in nature. The trend of change in 2037 proper indicates that a general growth performance of all the land use land cover classes as against their trend in 2017-2037. It is highly predicted that wetland class category will increase by 38% against its reduction in 2017-2037 by -0.04%,cultivation class category by 23% against its reduction in 2017-2037 by 0.49%, settlement class category by 16% against its increase in 2017-2037 by1.52%,water class category by 3% against its increase in 2017-2037 by 0.25% and forest class category by 20% against its reduction rate in 2017-2037 by -1.72%.Socio-Economic characteristic of all respondents in the sampled villages showed a positive impact trends in aid to household food security in Afikpo north L.G.A of Ebonyi State. Above all, the response of all the respondents in the sampled villages of Ndibe/Enohia Nkalu,Ugwuagu, Unwana, Akpoha,Ohaisu and Ibii/Ozziza respectively, on the impact of Iyieke and Ehuoma wetland ecosystem resources to household food security was highly positive.

Paper ID: AJ234220202110
Paper Title: MODELING AND SIMULATION OF 58 BUS 330KV NIGERIA NETWORK
Lead Author: Ananti John Egbunike
Co-Author(s): Nwosu Ndubuisi Oluchukwu

This Paper on the Modeling and simulation of 58 Bus 330k Nigeria Network is a complete modeling of Nigeria interconnected Power network. Its objective is to determine the structure of Nigeria Power network, to model a power flow on transmission lines and to develop a Simulation Model and the Simulation of 58 Bus Nigeria 330kv Transmission Network. The research material for this research is the 58 buses Nigerian 330-kV Transmission Network which shows that The Nigerian Transmission grid is made up of interconnected network of 6702 km of 330-kV that spans the country nationwide . The system may be divided into three geographical zones-North, South-East, and the South-West. The North is connected to the South through the one-triple circuit lines between Jebba and Oshogbo while the West is linked to the East through one transmission line from Oshogbo to Benin and one double line from Ikeja to Benin. The transmission grid is centrally controlled from the National Control centre (NCC) located at Oshogbo in Osun State, while there is a back-up or Supplementary National Control Centre (SNCC) at Shiroro in Niger State. The 58 bus Nigeria 330kV transmission line network was modeled in PSAT 2.1.8. The simulations of Nigeria 330kV was solved using the power flow equations and Newton – Raphson method of load flow solution. Results shows that ordinary line diagram of the 58 Bus network of Nigeria in a line diagram without full interconnections of the network that may not be used for further studies of the Nigeria network. But the simulated network in a PSAT Model for 58 Bus Nigeria 330 kV Network without a device like the flexible alternating current transmission system (FACTS) Device gave provisions for insertion of devices that may help for future studies like identification of violated voltages on the network, insertion of devices like Static Synchronous Series Compensator, unified Power flow controller, and Static compensator (STATCOM). Therefore it is highly recommended that a Power system Analytical Tool (PSAT) should be used in the modeling of Nigerian Power network that can be used for further studies.

Paper ID: AJ2342202012128
Paper Title: WASTE TO WEALTH CREATION: A CASE STUDY OF A PROPOSAL TEMPLATE FOR FUNDING THE FABRICATION OF A BIODIGESTER FOR SMALL SCALE BIOGAS PRODUCTION
Lead Author: MBABUIKE, I. U.
Co-Author(s): IFEDIEGWU, C. N.; NWOKE, N. O.

a well prepared proposal is key to attracting funding by convincing a potential trust fund donor of the viability of any project. In this paper, a template for preparing a fabrication proposal is presented with a case study of a biodigester for the production of biogas for domestic consumption. The proposed steps are numbered 1 to 8 starting with an executive summary of the project to be fabricated. A sample of fabricators’ profile is presented.

Paper ID: AJ2342202016172
Paper Title: THE IMPLICATION OF APPLYING ANSOFF MODEL ON MARKETING PERFORMANCE FOR NIGERIAN AUTOMOBILE COMPANIES. A CASE STUDY OF INNOSON VEHICLE MANUFACTURING PLANT NNEWI
Lead Author: Nnanna Innocent
Co-Author(s): Nnachi Benjamin; Okafor, G. O.

This study aims to determine the impact of Ansoff model application on marketing performance on INNOSON vehicle manufacturing company. To achieve the objectives of the study, a questionnaire was developed and distributed. The study population consists of all INNOSON vehicle manufacturing Company employees, and convenience sample was selected 150 questionnaire were distributed, 110 were recalled which representing (73%) of the sample. The study finds that there is a strong impact of Applying Ansoff Model (market penetration strategy, product development strategy, market development strategy, diversification strategy) on marketing performance in INNOSON vehicle manufacturing Company. The study made some recommendations which enable the decision-makers to use the strategies of Ansoff Model in effective way, this will help INNOSON vehicle manufacturing Company to increase the levels of marketing performance and to achieve its objectives, as survival, growth, achieve benefits and profits.

Paper ID: AJ234220201116120
Paper Title: STUDY OF THE TENSILE PROPERTIES OF UKAM FIBRE REINFORCED CASHEW NUT SHELL RESIN COMPOSITE
Lead Author: Nnachi Benjamin O.
Co-Author(s): Ibe, Godwin Anwara; Jasper, C. Onyegbule

The tensile properties of Ukam fibre cashew nut shell resin composite were studied for possible structural application in engineering. Basically, the hand lay–up method was employed to manufacture the test samples of the composite by 40: 60 weight ratio and testing the tensile properties such as tensile strength and modulus of elasticity using the instron tensile machine. Consequently, the experiment demonstrated that the Ukam fibre reinforced cashew nut shell resin composite has an ultimate tensile strength of 40.5 Mpa and a Young Modulus of 1GPa. The above results indicate that ukam fibre reinforced cashew nut shell resin composte is suitable for low cost applications in engineering and is a good alternative to artificial glass fibre.

Paper ID: AJ234220201111115
Paper Title: REVIEW OF LTE SIGNAL PROCESSING RESEARCH WORKS
Lead Author: Ali, Uche Egwu
Co-Author(s): Ibiam, Nzeogu Inya; Nnubuogu, Nonso Foster

This work is a review of related researches in LTE with SDR from 2008 to 2017. The review is carried out by analysing the keywords in articles downloaded from web of science using the search topic "LTE signal processing" with a time span from 2008 to 2017. The bibliometric map from the analysis is made of three clusters. The clusters are arranged in such a way that keywords relevant to LTE parameters belong to one cluster, those relevant to steps in processing LTE signal belong to another cluster while the next cluster is made of keywords relevant to LTE related networks and technologies. The red cluster contains keywords which are LTE parameters and steps taken in processing LTE signals. The green cluster contains keywords such as SDR, power amplifier, CMOS and others which are related to LTE systems. The blue cluster keywords are concerned with networks similar to LTE and the processes in which these networks transmit data from one point to the other. This works shows that research in LTE signal processing has been at the increase. It equally reviews the terminologies use in processing LTE signal and many LTE system parameters.

Paper ID: AJ2342202017385
Paper Title: EFFECTS OF HEALTH AND SAFETY STANDARD ON PRODUCTIVITY AT ENGINEERING WORK PLACES: A CASE STUDY OF SCIENTIFIC EQUIPMENT DEVELOPMENT INSTITUTE, ENUGU (SEDI-E)
Lead Author: Isaac Raphael Okafor
Co-Author(s): Lilian Affiong Okafor

Over years’ work related accidents have temporarily or permanently disabled workers as a result of inadequate safety knowledge on handling machines and equipment, neglecting to follow simple procedure in accomplishing task or management not providing the right safety standards and resources for employees. This has also resulted in low productivity by the workers. Implementation of health and safety standards is the only remedy to this organizational challenge on productivity. The aim of this study is to identify the health and safety standards in Scientific Equipment Development Institute, Enugu (SEDI-E), to determine the effect of health and safety standards on employees’ productivity, to determine employees’ level of understanding of health and safety policies, to assess the attitude of management towards the health and safety of employees and to identify challenges of the implementation of health and safety standards in the organization. This can be achieved by organizing staff and management training on the significant of health and safety measures and its applications on day to day work activities. This training should also have legal back up for effectiveness and efficiency. Results from the descriptive survey design in SEDI-E show that a distinctive number (69) representing 98.57% of the staff agreed in implementation of health and safety standards in response to the questionnaires shared to 70 selected staff members.

Paper ID: AJ2342202015060
Paper Title: EFFECT OF WELDING CONSUMABLES ON THE MICROSTRUCTURE OF WELD JOINT IN A WELDED MILD STEEL
Lead Author: Nnachi Benjamin O.
Co-Author(s): Jasper, C. O.

The paper looks on the effect of welding consumables on the microstructure of a welded mild steel. Steel is an alloy of iron and carbon and it is usually cast into malleable form. Welding is the process of coalescing materials such as metals or thermoplastic in order to seamlessly join them. The welding processes undertaken in this work were shielded metal arc welding (SMAW) and the electrodes used were E6013 and E7018 and oxy-accetylene was used with mild steel filler metal. Preparation of test samples and the methallurgical phenomena involved were carried out using the required equipment. The effect of welding on the microstructure of a welded mild steel and microstructural examinations were also studied and presented. The results of the study are shown in picture form and discussions and conclusion were also given.

Paper ID: AJ2342202011120
Paper Title: ASSESSMENT OF WATER SOURCES, PREVALENCE OF WATERBORNE DISEASES AND SOCIO-DEMOGRAPHIC CATEGORIES FOR BETTER FOCUSING OF INTERVENTION EFFORTS IN HOUSEHOLD DRINKING WATER SUPPLIES
Lead Author: Amatobi, Damiana A.
Co-Author(s): Adenike, Oluwaseun A.

This paper provides the basic data for better focusing of intervention efforts for the provision of safe drinking water for household communities. The study surveyed households in 11 communities and obtained information from 330 water consumers in Afikpo North Local Government Area of Ebonyi State, Nigeria. Data was generated on the sources of drinking water, prevalence of waterborne diseases and socio-demographic categories. Water samples from the major sources of drinking water in the study area were taken and analyzed for colonies of microorganisms, coliform organisms and E-coli. The sources of drinking water in the study area are the water boreholes (71.21%) sachet water (9.70%), spring water (8.79%), harvested rainwater (6.67%) and others (3.63%). The prevalence of waterborne disease include typhoid fever (20%), diarrhea (14.55%), dysentery (7.27%) and Hepatitis A (1.52%). The prevalence of typhoid fever and diarrhea was high among consumers of water from boreholes and sachet water, which are the major sources of drinking water. The study found a strong association between age bracket and prevalence of waterborne diseases ((R2 = 0.855, F = 15.720, P < 0.005). The study concludes that safe drinking water interventions in the study area should focus more on improving microbial water quality in terms of water abstraction, treatment and storage. The study recommends that stakeholders who offer safe drinking water interventions supply in Afikpo and Unwana Towns should consider the provision of hardware/technical facilities that are simple to maintain and that guarantee safe water quality in the long run.

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