ARCHIVES(Journal of Harmonized Research in Engineering)


Title: PUBLIC PERCEPTION ON INTEGRATING NUCLEAR POWER IN NIGERIA’S ENERGY MIX
Author: Olukolapo O. Akinmola, George N. Osaghae, Tajudeen O. Abdulazeez, H. Ahidjo
Keyword: Public opinion, Nuclear power, Policy, Energy,Nigeria
Page No: 317-323
Abstract: - In twenty years, Nigeria’s population is expected to double and aggregate energy demand will triple (NEP, Draft Revised Edition 2013), Conventional energy sources alone will not meet the challenges of an increasing population at affordable costs and in a flexible manner. To meet the rapidly growing demand for energy, and the challenges posed by climate change. There has to be a conscious effort to consider other sources to be integrated into the energy mix to meet this energy demand. Nuclear energy is seen as one of the sources that have the capacity to meet this increasing demand ifeffectivelyintegrated into the nation’s energy mix. A survey was conductedto capture public opinions in the deployment of other energy options such as nuclear energy into the Nigeria energy mix. The result of the survey indicated a decline in support for nuclear energy as option in meeting Nigeria energy povertycompared to renewable energy which was most favoured by vast majority of the respondents. This is however attributable to the present security challenge in Nigeria and the fukushima accident which occurred 2011 in Japan. The opposition to nuclear power can be reversed if the peaceful applications, socio-economic and environmental case for its deployment is strong enough. This paper would help policy/decision makers in making proper decision as regards to nuclear power deployment and its review if barriers such as energy security, public’s opposition are adequately addressed. Keywords: Public opinion, Nuclear power, Policy, Energy,Nigeria Download PDF


Title: SOME ASPECT ON FAILURE ANALYSIS OF CNC MACHINE USING ANALYTIC HIERARCHY PROCESS (AHP) AND MULTIPLE ATTRIBUTE DECISION MAKING (MADM)
Author: Rachit Sandolkar, Sharda Pratap Shrivas
Keyword: CNC, Failure cause, MADM ( SAW, WPM)
Page No: 324-328
Abstract: A systematic study of such failures is expected to help in identifying the critical elements/sub-system prone to failure.CNC machines into groups’ helps maintenance department to focus their attention to the machine that has high tendency to produce defect. In this work failure analysis of computerized numerical control (CNC) lathes as well milling machine are collected, investigated and described. Failure data of CNC’s lathes and CNC’s milling over a period of six years was considered. The failure position and subsystem, failure mode and cause were analyzed to indicate the weak subsystem of a CNC Milling Multiple Attribute Decision Making (MADM) method, was used to identify each CNC machine failure. These failures were then used to create a quality inspection order, so that the machine with the lowest failure could be inspected before the machine with the highest failure The results suggest that the proposed method helps to detect failure causes of CNC machine earlier hence reducing the number of delay found in the production line. Key Words:- CNC, Failure cause, MADM ( SAW, WPM) Download PDF


Title: EVALUATION OF CONVOLUTIONAL ENCODERS WITH VITERBI DECODERS FOR NEXT GENERATION BROADBAND WIRELESS ACCESS SYSTEM
Author: Engr Ekwe O. A., Ilo S. F., Justice Ihekoronye, and Emole E.C.
Keyword: Error Control Coding (ECC), Digital Subscriber Lines (DSL), Broadband Wireless Access (BWA), Inter-signal interference ISI.
Page No: 329-338
Abstract: The IEEE STD 802.16 – 2009 in their specification for the physical layer of the next generation Broadband Wireless Access (BWA) system approved a forward error correction, FEC with the concatenatio n of Reed-Solomon outer code and a rate compactible convolutional inner code. This evaluation is based on modelling a configurable convolutional encoder and Viterbi decoder by making use of the stipulated rate-compactible punctured convolutional codes from the usual mother rate 1/2, constraint length K = 7 and generator polynomial , to obtain higher rates of 2/3, 3/4 and 5/6. Key Words: Error Control Coding (ECC), Digital Subscriber Lines (DSL), Broadband Wireless Access (BWA), Inter-signal interference ISI. Download PDF


Title: AN ASSESSMENT OF THE PHYSICAL CHARACTERISTICS OF INDUSTRIAL WASTE WATER DISCHARGE INTO KADUNA RIVER
Author: C. A. Elanu, H. Garba, R. L. Batagarawa
Keyword: Physical, Wastewater, Discharges, Concentration, Effluent.
Page No: 339-345
Abstract: An assessment of the physical characteristics of industrial wastewater discharge into Kaduna River was carried out. Daily concentration of Turbidity, Temperature, Colour, Electrical conductivity and T otal solids were converted to mean monthly. From the analysis conducted on bimonthly and monthly basis, it was observed the highest mean concentration of Turbidity (143 NTU) was recorded for the bimonthly while (133NTU) was for the monthly. The highest mean Temperature of 31.260C was observed for bimonthly and 31.270C was the temperature for the monthly. The highest mean color concentration level of 38.4H0 recorded for bimonthly while 38.5H0 was for the monthly. The highest mean Electrical conductivity at 3700µs/cm recorded for the bimonthly while 3090µs/cm for the monthly reading was recorded. Total dissolved solids value of 335.1mg/l for bimonthly reading was recorded in August and 272.7mg/l monthly mean concentration was recorded monthly. From the analysis, it can be adduced that Turbidity, color and Total solid concentration increases during wet weather flow mainly due to lateral inflow while temperature and Electrical conductivity concentration increases during dry weather flow. Keywords: Physical, Wastewater, Discharges, Concentration, Effluent. Download PDF


Title: STANDARD GEOSPATIAL DATA MODEL FOR WATER AND WASTEWATER INFRASTRUCTURE RISK ASSESSMENT
Author: Rahul Vemulapally, Sunil K. Sinha, and Stephen M.Welling*
Keyword: Risk Management, Water Pipeline, Wastewater Pipeline, Web-based, Geospatial
Page No: 346-359
Abstract: Geospatial pipeline attribute data is required for the enhanced risk assessment of buried water pipeline infrastructure. Toward this end, a GIS can provide water utilities a means for viewing, under standing, interpreting, and visualizing complex geographically referenced pipeline information to reveal data relationships, patterns, and trends. Yet, no standard data model exists for utilities to follow in order to enable advanced risk assessment modeling. The primary objectives of this research were to develop a standard GIS data model to conflate disparate datasets from differing utilities, and further demonstrate its usefulness through developing risk assessment applications using the standardized data from participating utilities and publicly available data, such as that from the USGS. Field mapping files were generated from the standard data model and demonstrated in a Google Earth application using a risk score for the pipeline, and further a web-based mapping application using ArcGIS Server Manager for publishing, querying and the visualization of aggregated data in a map-based browser application. The aggregation of standardized data and further use in mapping applications will help in providing timely access to asset management information and resources that will lead to enhanced risk modeling for drinking water and wastewater utilities. Keywords: Risk Management, Water Pipeline, Wastewater Pipeline, Web-based, Geospatial Download PDF