Investigation of Impact of Contingencies on Power Plant and Transmission Lines

Contingency analysis are widely applied to predict the effect of outages in power systems, like tripping of equipment in power plants and transmission lines. Using off line analysis to predict the effect of individual contingency is a tedious task on power system containing large number of components. Practically, only selected contingencies will lead to severe conditions in power system, like violation of voltage and active power flow limits. Simultaneously, the value of active power flow before and after severe transmission and power plant contingencies was analysed using Genetic Eigenvalue Analysis Technique. This was achieved by simulating the Simulink of Nigerian 330KV 48 bus power system using m-file programme in MATLAB environment.The result of the simulation for the power flow solution for transmission line outage contingencies shows that the voltage trajectory at bus 11 stood at 0.3934 p.u, at bus 15 is0.4986 p.u, and bus of 23 is 0.4647 p.u while for the contingencies on power plant, there voltage trajectories stood at 0.2342 p.u for bus 11, 0.3987 p.u for bus 23. The result shows that the impact on power plant is higher than that of transmission line by 40%, 20%, 14%for sampled buses 11, 15, and 23 respectively. Keywords: Power Stability- Genetic Eigenvalue, Load flow DOI: 10.7176/JETP/11-1-04 Publication date: January 31st 202

TFD and Community Education on Female Genital Mutilation in Igede Land of Benue State: Ugengen Community Experience

In many Nigerian localities, there are cultural archetypes that favour males more than females and this is based on their belief systems. Most of these belief systems are practised against females. In the Igede belief system, female genital mutilation is practised to preserve family honour, protect female virginity, prevent promiscuity, increase sexual pleasure for husbands and also, enhance female fertility. Though medical reports reveal that female genital mutilation is detrimental to women and has medical, social and psychological complications the practice is still in vogue. Since healthy living is not the responsibility of only the medical personnel but that of everybody, this paper explores the utilization of Theatre for Development approach to combat high female genital mutilation in Ugengen community of Igede land in Benue State. The findings confirmed that, the victims have complications such as severe bleeding, urinary retention, urinary tract infections, pelvic and back pains, as well as prolonged delivery labour. Through people's involvement and participation in the workshop process, they are made to realize that female genital mutilation is a problem to their community. The people therefore adopted measures to combat the trend in the community

A Philosophical Assessment of the Challenges of Sustainability of Nigeria’s Foreign Policy Image Between 1960-2013

This paper is a philosophical assessment of the challenges of sustainability of Nigeria’s foreign policy image between 1960-2013. The problem which led to this research was the failure of the Nigerian state to secure a permanent seat in the UN Security Council. This shows that Nigeria’s image problem is clearly a treat to the country’s progress in international politics. In this way, the paper is significant in calling attention to Nigeria’s image problem. The central argument which this paper raised was that while the “survivability” or “unsurvivability” of Nigeria’s foreign policy image cannot be discussed without recourse to the Nigerian civil war(1966-1969), the actual challenges to sustainability which this paper alleges include among other things; -1) prolonged years of military misrule in Nigeria, 2)identification of Africa’s interests as Nigeria’s National interests, and 3) the absence of an efficient public relation department in the Nigerian foreign policy industry for that same purpose. Keywords: Nigeria foreign policy image, sustainability and challenges

Application of Computer Technologies to Circulation Services in University and Research Institute Libraries in North Central Nigeria

The study focused on application of computer technologies to circulation services in university and research institute libraries in North Central, Nigeria. Application of computer technology in this study is the act of using computer, storage devices, computer accessories and internet to improve the slow quality of circulation services.  Descriptive survey was used as design of the study. The study covered 13 university libraries and 19 research institute libraries in North Central, Nigeria. The population of this study was 234 librarians. Sample size for this study was made up of entire population. Research instruments was Questionnaire developed by the researchers titled “Questionnaire on Application of Computer Technologies to Circulation Services in Libraries” (QACTCSIL)...........

Spatiotemporal Modeling Encounters 3D Medical Image Analysis: Slice-Shift UNet with Multi-View Fusion

As a fundamental part of computational healthcare, Computer Tomography (CT) and Magnetic Resonance Imaging (MRI) provide volumetric data, making the development of algorithms for 3D image analysis a necessity. Despite being computationally cheap, 2D Convolutional Neural Networks can only extract spatial information. In contrast, 3D CNNs can extract three-dimensional features, but they have higher computational costs and latency, which is a limitation for clinical practice that requires fast and efficient models. Inspired by the field of video action recognition we propose a new 2D-based model dubbed Slice SHift UNet (SSH-UNet) which encodes three-dimensional features at 2D CNN's complexity. More precisely multi-view features are collaboratively learned by performing 2D convolutions along the three orthogonal planes of a volume and imposing a weights-sharing mechanism. The third dimension, which is neglected by the 2D convolution, is reincorporated by shifting a portion of the feature maps along the slices' axis. The effectiveness of our approach is validated in Multi-Modality Abdominal Multi-Organ Segmentation (AMOS) and Multi-Atlas Labeling Beyond the Cranial Vault (BTCV) datasets, showing that SSH-UNet is more efficient while on par in performance with state-of-the-art architectures

Psychological Preparation for Peak Performance in Sports Competition

This paper attempt to make an overview of various techniques, sport psychologist adopt in psychological preparation of athletes for peak performance. To attain peak performance in sports competitions, coaches and athletes should not base their prospect on physical training on sport skills alone rather should integrate both the mental and physical aspects of performance. During sport competitions athlete should enter the competition with the proper mindset so as to achieve optimum performance. The importance of a sport psychologist to athletes or sports team in this respect cannot be overemphasized, therefore the sport psychologist is in a position to provide the needed therapy to athletes who have been psyched-out by personal, motivational and environmental factors. The paper therefore recommended among others that athletes should be advised for practice mental and psychological skill training and, faster rehabilitation of an injured athlete should be done as this would help to achieve success in peak performance. Keywords: Peak Performance, Sports Skills, Psychological Skills, Attention and Personality

Biosorption of heavy metals in industrial wastewater using micro-organisms (Pseudomonas aeruginosa)

Heavy metal ions are often present in industrial wastewater, and sometimes there is the need to reduce their concentrations to some certain minimum. Biosorption is one of the methods by which this reduction can be achieved. The purpose of this study is to explore the biosorption technique as an alternative to conventional methods such as reverse osmosis, electro dialysis, ultra filtration, ion-exchange and chemical precipitation in the removal of heavy metal ions from industrial wastewater. Biosorption of the heavy metals namely cadmium, zinc and silicate were conducted using Pseudomonas Aeruginosa. Samples of wastewater from an industrial source were collected in a 2L container and poured into six containers. Measured quantities of the biomass were then introduced into the samples. The concentrations of heavy metals in the samples were determined with an atomic absorption spectrometer. The results yielded a significant reduction in the heavy metal ion concentrations in the samples, with even the highest initial concentration greatly reduced. Biosorption technique can be a very good alternative to conventional methods in terms of availability of materials, cost-effectiveness and absence of precipitates and slurry

Quadra-Statistical Modeling Of Corrosion Penetration Rate (CPR) Of Martensitic and Annealed Stainless Steel in H2SO4 and HCl.

A lucid quadratic model graphs and equations has been successfully generated after corrosion characterization behavior analysis of cast stainless steel (70.90% Fe, 19% Cr 10%Ni, 0.08% C) alloys in (0.25M- 0.5M) H2SO4 and (0.25M- 0.5M) HCl using SPSS computer software. The cast stainless steel specimen were sectioned into three sets labeled M, A, U and machined to the same cross sectional area. M and A were subjected to a temperature of 900oC (1173K or 1652oF) where the grains formed austenitic phase which was further heat-treated to form martensitic stainless steel (M) and annealed stainless steel (A) test coupons respectively. Then, (U) was left untreated as a control test coupon sample. These pre-weighed test coupon samples were immersed in 0.25M and 0.5M simulated tetraoxosulphate (vi) acid (H2SO4) and Hydrochloric acid (HCl) respectively. The.......

Biodisinfection and Coagulant Properties of Mixed Garcinia kola and Carica papaya Seeds Extract for Water Treatment

Garcinia kola (Heckel) and Carica papaya (Linn.) seeds from ripe fruits were investigated for their disinfection and coagulation activity in water. The phytochemical analysis indicated the presence of alkaloid, saponins, flavonoid and tannins in both seeds. Physicochemical analysis of the water samples was determined before and after treatment with seed solutions. Results showed that mixed Garcinia kola and Carica papaya extracts had no significant effect (P > .05) on temperature, pH, conductivity and chloride but significantly reduced (P = .05) TDS, BOD, nitrate, nitrite and turbidity. The coagulation and antimicrobial efficiency of mixed Garcinia kola Heckel and Carica papaya seed solution at different concentrations on turbid surface water (collected from Ogbor Hill River in Aba) were studied and compared. Microbial reduction for mixed extract of Garcinia kola and Carica papaya solution showed antimicrobial efficiency of 41.67 – 83.33% for Total coliform, 47.85 – 60.89% for E. coli, 12.87-83.33% for Fecal streptococcus, 40.46 – 83.33% for staphylococcus Aureus and 50.43 – 74.36% for Total heterotrophic bacteria at different concentration. Mixed Garcinia kola and Carica papaya seed solution reduced the turbidity perfectly at the optimum doze of 3% at which 67.83% turbidity was removed by mixed solution. Garcina kola and Carica papaya seeds are non toxic and do not significantly affect the pH and conductivity of the treated water. So, as natural coagulants, both seeds may be potentially viable for treating water