Rivers State University of Science and Technology

About: Rivers State University of Science and Technology is a education organization based out in Port Harcourt, Rivers, Nigeria. It is known for research contribution in the topics: Population & Threatened species. The organization has 1826 authors who have published 1833 publications receiving 15183 citations.

A Computationally Intelligent Power Transmission Expansion Strategy in a Deregulated Energy System

Abstract: This paper aims to simulate a computationally intelligent electrical power transmission expansion system and study the factors affecting power transmission expansion in a deregulated energy system to improve on the current economic conditions. The main problem facing most power system transmission is the failure to actually forecast the load expansion accurately this leads to failure in the transmission expansion design. a hybrid algorithm for the ac/dc transmission expansion planning (HTEP) and multi algebraic formulation of the stochastic TEP model in a multi-stage planning framework will be used to analyze the transmission expansion system, optimization problem will considers a weighted sum of multiple objectives including cost of operation and maintenance, emission, load shedding and line investments, simulation method would consider random outages of generating units and ac/dc transmission lines as well as load forecast .The independent system operator would utilize the proposed method to select the optimal set of ac/dc transmission lines for satisfying TEP criteria. The proposed set of dc transmission system may use either current source converters or voltage source converters. The proposed algorithms are simulated on IEEE 24-bus reliability test system (RTS) and Gerner’s 6 bus system to compare optimal plans between the original and equivalent system. Further assumptions and adjustments are searched and tested to get more accurate optimal plans. results obtained showed that the hybrid model was capable of handling future generation and load patterns in deregulated, unbundled, and competitive electricity system. the results of the study showed the hybrid model was tested in the Gerner’s 6 bus system and the expansion model after a load forecast. On the IEEE 24-bus system showed that the hybrid expansion model was able to take care of the load forecast for future expansion.

Stabilisation Clauses and Foreign Direct Investment: Presumptions versus Realities

Abstract: Stabilisation clauses are widely portrayed as an essential tool which developing countries use to attract foreign direct investment (FDI) to their extractive industries. However, this view of stabilisation clauses is based on two presumptions. The first is that developing countries compete to attract FDI. The second is that developing countries have higher levels of political risks. This article argues that neither presumption is true as such. The available evidence points to intense competition among foreign investors, backed by their home governments, for access to the extractive industries in developing countries. The political risks that stabilisation clauses are aimed at also exist at least in equal measure, in developed countries. The article then relies on the findings of previous empirical studies and an analysis of current trends in stabilisation practices to argue that contrary to popular belief, stabilisation clauses do not play an ‘essential’ role in attracting FDI into developing countries.

Productive Participation of the Physically Challenged through Technical Vocational Education Training Programmes in Rivers State

Abstract: The study examined the productive participation of the physically challenged through Technical Vocational Education Training programmes in Rivers State. A population of 387 registered mobility impaired and visually impaired persons were used for the study while a sample of 284 was selected through purposive sampling technique. Three research questions were answered, and three null hypotheses were tested at 0.05 level of significance. The instrument for data collection was a selfstructure questionnaire developed by the researchers that was structured in the pattern of 5-point Likert rating scale of agreement and extent. The instrument was face and contents validated by three experts. The reliability of the instrument was established through Pearson Product Moment Correlation (PPMC) which yielded correlation coefficient of 0.86. Mean and standard deviation were used to analyse the research questions while z-test was used to test the hypotheses. The study found among others that unwillingness of the participant to training, discrimination, lack of jobs after training and high technical fees were some of the barriers for implementing TVET to the physically challenged persons in Rivers State. It was recommended among others that at least two TVET Original Research Article Amaso et al.; JESBS, 33(7): 44-54, 2020; Article no.JESBS.59214 45 special schools and training centres should be built (setup) in each senatorial zone in Rivers State, trained technical teachers should be employed, TVET programmes should be free for productive participation of the physically challenged in Rivers State.

Evaluation and Analysis of the Deployment of Green Communication Technology in GSM

Abstract: This paper presents an evaluation and analysis of the deployment of green communication technology in Nigeria. Most base stations in Nigeria uses diesel generators to power their Cell Sites, this has been identified as a problem if not checked because it will continue to add to the Carbon dioxide emission in the atmosphere and hence the depletion of the ozone layer. Green Communication Technology was proposed to solve this problem. Energy deployed are photovoltaic and wind turbine (PV/WT) energy while diesel generator (DG) will still be used as a backup. With the use of hybrid technology (PV/WT/DG), carbon emission will be reduced by 70% or more, efficiency will be achieved.. The results obtained from this research work are based on economics cost, efficiency, power outputs per year and carbon emissions. , in terms of efficiency the DG only system has a mean efficiency output of 8.18% and mean efficiency of 25% while the proposed system has a mean efficiency output of 14.8% and a mean efficiency of 27.5% for PV and 21.3% of WT, electrical production of DG only is 119439kWh/yr while Hybrid Systems (HBS) has electricity production of 124,488kWh/yr, base on life cycle DG only system operate for 3yr and max of 8yrs while HBS operate for 25yrs above, the carbon emissions for DG only system for CO2, CO, NO2 are 75,033, 473, 444kg/yr respectively and HBS for CO2, CO, NO2 is 264, 1.79 and 2.04kg/yr respectively. From the result obtained it can be concluded that the proposed system is better than the existing system, therefore, it can be recommended for GSM operators in Nigeria and any developing nation.