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    MESSAGE ABOUT LOVE TO WHO DENIED IT
    (GOOD LUCK, ILORIN, 2010-02-10) ALFABANNI TUNDE AHMED
    THIS EXPLAINED THE GAP BETWEEN AGAPE AND FAKE LOVE THAT EXISTING IN HUMAN LIFE..
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    Thermo-physical properties of rubber seed useful in the design of storage structure
    (Chinese Intitution of Agricultural and Biological Engineering, 2012) Adeshina Fadeyibi; Zinash Delebo Osunde
    This study was carried out to determine the thermo-physical properties of rubber seed in the moisture range of 9.1% to 14.8% (w.b.). The length, width, thickness, measured surface area, bulk density and true density increased with increasing moisture content with high coefficients of determination (significant at p<0.05). Their optimum values at 14.8% moisture content were 17.00 mm, 11.94 mm, 8.26 mm, 285.20 mm2, 295.00 kg/m3 and 470.67 kg/m3, respectively. The angle of repose increased as moisture content increased with low coefficient of determination and has optimum value of 28.81°at 14.8% moisture content. The specific heat capacity and thermal conductivity decreased linearly while thermal diffusivity increased exponentially with an increase in moisture content (significant at p<0.05). The optimum values of specific heat capacity, thermal conductivity and diffusivity at 14.8% moisture content were 55.84 kJ/(kg.K), 0.032 W/(m.K) and 1.93×10-9 m2/s,respectively. The results are essential in the design of storage structure for rubber seed
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    Investigation of the Properties of “Pure Water” Sachet Modified Bitumen
    (2013) Dahunsi, Bamidele; Awogboro, Femi; Akinpelu, Mutiu; Olafusi, Oladipupo
    The increasing volume of traffic loads on our roads is currently a challenge on flexible pavement design and construction. Factors such as durability, strength and economic needs have to be considered in the design and construction of road pavement. Many research have been conducted to explore supplementary material that can make a durable asphalt pavement. It is not unfamiliar that the modification of bitumen with the use of polymers enhances its performance characteristics but at the same time significantly alters its rheologicalproperties. One of the environmental issues in most regions of Nigeria is the large number of polymeric wastes made from polyethylene water sachet (PWS) popularly called “Pure Water” Nylon deposited in domestic wastes and landfills. This study was conducted to investigate the effect of PWS on the properties of conventional bitumen and suitability of discarded PWS as bitumen modifier and to reduce the environmental effects of PWS disposal. Bituminous blends containing PWS at various percentages 2.5%, 5%, 7.5%, 10%, 12.5% and 15% weight of conventional bitumen. Penetration, softening point and float tests were carried out on the samples to evaluate the penetration index, viscosity, stiffness modulus and the suitability of PWS as bitumen modifier. Sieve analysis and infrared spectroscopy of the shredded PWS sample were also carried out. Result obtained from tests was compared between control sample (0% PWS) and PWS modified samples. The test results show that PWSs influence more on the penetration of the modified sample with the increase in the viscosity of the bitumen as can be observed by the decrease in the value of penetration with the increase in concentration of PWS. The penetration index values of Samples 2.5% PWS and 7.5% PWS makes them to be classified as blown bitumen and the PI value of Sample 5% PWS makes it less susceptible to temperature changes and can be classified as oxidized bitumen. PWS is a cheap and readily available material in construction when used appropriately in bitumen and the recycling of PWS for asphalt base roads helps alleviate an environmental problem and saves energy.
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    Development of an Advanced Public Transportation System for captive commuters on urban arterials in Ilorin, Nigeria
    (Faculty of Engineering, Alexandria University, 2013-04-06) Akinpelu, Mutiu; Adeleke, Oluwafemi; Jimoh, Yinusa
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    Flow and strength properties of cassava and yam starch–glycerol composites essential in the design of handling equipment for granular solids
    (Journal of Food Engineering, Elsevier, 2014) A. Fadeyibi; Z.D. Osunde; G. Agidi; E.C. Evans
    A research was conducted to determine the flow and strength properties of cassava and yam starch–glycerol composites for their application in the design of hopper or any other storage bin, with a consistent flow during the handling of the granular solids, in the food industry. The flow and strength properties of the bulk materials which include the consolidation, shear and unconfined yield stresses were determined at different bulk densities and glycerol concentrations in the range of 1.5–3.0 g/cm3 and 15–25 ml glycerol per 100 g starch using a uniaxial compression test. The flowability of the bulk solids were classified using Jenike’s flow specifications. The angles of internal and wall frictions of the bulk solids were determined from their yield loci. The hopper half angles were determined from the conical hopper design chart; and the friction factors, which account for the vibration in the arch thickness and the geometric configuration of the composites, were computed empirically. The results show that the compressive strength of the cassava and yam starch–glycerol composites increased significantly with an increase in bulk density and a decrease in the glycerol concentration (p < 0.05). The cohesiveness of the composites increase with increasing glycerol concentration, up to 25 ml per 100 g starch, because of their increasing flow function (1 < ff < 2). The hopper half angle, friction factor and angles of internal and wall frictions of the cassava starch–glycerol composite at 3.0 g/cm3 were 18.0°, 2.48, 43.0° and 26.0°, respectively. The higher angle of wall friction at 3 g/cm3 implies that a steeper hopper wall is required for a consistent flow of the granular solids through a hopper.
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    GIS-BASED HYDROLOGICAL MODELLING USING SWAT: CASE STUDY OF UPSTREAM WATERSHED OF JEBBA RESERVOIR IN NIGERIA
    (NIJOTECH-Nigerian Journal of Technology, 2014-06) Adeogun , Adeniyi Ganiyu; Sule, Bolaji Fatai, Salami, Adebayou Wahab; Okeola, Olayinka Gafar
    The study predicted potential evapo-transpiration (PET) of Omi Kampe watershed upstream in Kogi State, Nigeria using Soil and Water Assessment Tool (SWAT) based on Priestley Taylor, Penman Monteith and Hargreaves methods. The model input data used were Digital Elevation Model, Soil map, Land use map and 30-year temporal data (January, 1987- December, 2016) for the simulation of the hydrological processes. The results showed that Penman Monteith and Hargreaves methods exhibited high correlation in the predicted values of PET while Priestly Taylor results for PET are least correlated with the other two methods and suspected to have under predicted PET values. On the other hand, all the three methods predicted the actual evapo-transpiration of the watershed with insignificant result variations. Outcome of this research could serve as a guide to water professionals and other stakeholders in selecting appropriate methods for evaluation of PET in other sub region in Nigeria.
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    SIMULATION OF SEDIMENT YIELD AT THE UPSTREAM WATERSHED OF JEBBA LAKE IN NIGERIA USING SWAT MODEL
    (Malaysian Journal of Civil Engineering, 2015) Adeniyi Ganiyu Adeogun; Sule, Bolaji Fatai; Adebayo Wahab
    In this study, we focused on the applicability and suitability of Soil and Water Assessment Tool (SWAT) embedded in Geographical Information Systems (GIS) environment in the prediction of sediment yield of a watershed (12,992km2). The watershed is drained by Rivers Niger, Kontagora, Awun and Eku and is located at the upstream of Jebba Reservoir in north central Nigeria . SWAT was run daily for 26 years (1985 to 2010 ) using climatic data representing three weather stations located within the watershed. The model was calibrated and validated using measured flow data from 1990 to 1995. Also due to the unavalilability of observed sediment data for the area, sediment samples were collected from three locations in the watershed from May to December, 2013 using suspended sediment sampler USDH-2A. The sediment samples were analysed and used to spatially calibrate and validate the model. The model was statistically evaluated using coefficient of determination, R2 and Nasch-Sutcliffe Efficiency, NSE. Evaluation of the model revealed that it performed satisfactorily for stream flow and sediment yield predictions in the watershed. The model predicted the annual sediment yield in the watershed as 255.8 tons/ha/yr producing about 8.31x 109 tons of sediment between 1985 and 2010. Sediment concentration (mg/l) in the reach during the period of simulation showed that the highest sediment concentration was obtained in subbasins 29, 20 and 19 with values 446.3, 376.8 and 365.4 mg/l respectively. However, lowest sediment concentration occurred in subbasin 73 with a value of 108.6 mg/l. The results from the study showed that a properly calibrated SWAT embedded in GIS environment is suitable for modelling the hydrology and predicting the sediment yield in a watershed. In the light of this, SWAT can be adopted by water engineers and hydrologists in Nigeria and other sub sahara Africa countries in the region as a decision support tool to assist policy makers in achieving sustainable sediment and water management at watershed level.
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    HELMET USE AS A SAFETY TOOL AMONG MOTORCYCLE RIDERS IN IBADAN, OYO STATE, NIGERIA.
    (2015) Akinleye M.T., Tijani M.A, Abdulwahab R
    This work studies helmets use as a safety tool among motorcycle riders in Ibadan, Oyo state, Nigeria. The instrument of data collection was a structured interviewer administered questionnaire on 400 motorcycle riders at Mokola and Sango areas, Ibadan. 330 responses were obtained to give a return rate of 82.5%. The analysis of the results showed that the frequency of helmet use in the study areas is 77.6% and that of non-user is 22.4%. 80% of the respondents felt that helmet use should be mandatory while only 20% felt that it should be at the discretion of riders. 150 (45.5%) respondents have ever been involved in motorcycle accidents out of which 94 (62.7%) were involved in head injury accidents. Up to 86 (91.5%) of these were involved in head injury accident before the introduction of legislation for compulsory crash helmet wear by motorcyclists in Nigeria while only 8(8.5%) were involved in the accident after the legislation of the law. This shows a decrease in head injury accidents after implementation of crash helmet law. Hence, there is need to strengthen existing legal enforcement of helmet use and ensure the availability of quality helmet to non-user both the commercial and private motorcyclists.
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    Effects Of Broken Glass As A Partial Replacement Of Granite In The Production Of Concrete
    (2015) Abdulwahab R., Ajamu S.O
    The importance of coarse aggregate in concrete cannot be overemphasized. Glass forms a major component of solid waste in many countries and can be recycled after usage. Although, small proportion used by consumers has been recycled and reuse while about 70-80% is disposed to the land-fill and this constitutes to environmental waste. This paper investigated the suitability of glass as partial or full replacement of conventional aggregate (crushed granite) in the production of concrete. The aggregate (fine) was spread uniformly on a hard, clean and non porous surface. Thereafter, cement was added until uniformity in mix was achieved. After which the coarse aggregates in the order (granite : glass) was added in varying proportion of 100:0, 80:20, 60:40, 40:60, 20:80. Water was applied gradually until uniformity in color and consistency was obtained. A total of 36 concrete cubes of size 150 x 150 x 150 mm were produced. The compressive strength of concrete with 100% granite at 28 days is 23.78N/mm2 and that with 20% is 12.67N/mm2. The density of concrete with 0% and 80% glass is 2730kg/m3 and 2034kg/m3 respectively. The slump value of concrete sample with 100% granite fell by 40mm and that with 80% glass fell by 20mm. It can be deduced that there is a reduction in the compressive strength of concrete as the percentage of glass increases. Concrete with 15-20% glass; having compressive strength of approximately 20N/mm2 can be recommended for structural works while 60-80% is useful where aesthetics is required.
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    SIMULATION OF SEDIMENT YIELD AT THE UPSTREAM WATERSHED OF JEBBA LAKE IN NIGERIA USING SWAT MODEL
    (Faculty of Civil Engineering, Universiti Teknologi Malaysia, 2015-06) Adeogun Adeniyi Ganiyu; Sule Bolaji Fatai; Salami Adebayo Wahab
    In this study, we focused on the applicability and suitability of Soil and Water Assessment Tool (SWAT) embedded in Geographical Information Systems (GIS) environment in the prediction of sediment yield of a watershed (12,992km2 ). The watershed is drained by Rivers Niger, Kontagora, Awun and Eku and is located at the upstream of Jebba Reservoir in north central Nigeria . SWAT was run daily for 26 years (1985 to 2010 ) using climatic data representing three weather stations located within the watershed. The model was calibrated and validated using measured flow data from 1990 to 1995. Also due to the unavalilability of observed sediment data for the area, sediment samples were collected from three locations in the watershed from May to December, 2013 using suspended sediment sampler USDH-2A. The sediment samples were analysed and used to spatially calibrate and validate the model. The model was statistically evaluated using coefficient of determination, R 2 and Nasch-Sutcliffe Efficiency, NSE. Evaluation of the model revealed that it performed satisfactorily for stream flow and sediment yield predictions in the watershed. The model predicted the annual sediment yield in the watershed as 255.8 tons/ha/yr producing about 8.31x 109 tons of sediment between 1985 and 2010. Sediment concentration (mg/l) in the reach during the period of simulation showed that the highest sediment concentration was obtained in subbasins 29, 20 and 19 with values 446.3, 376.8 and 365.4 mg/l respectively. However, lowest sediment concentration occurred in subbasin 73 with a value of 108.6 mg/l. The results from the study showed that a properly calibrated SWAT embedded in GIS environment is suitable for modelling the hydrology and predicting the sediment yield in a watershed. In the light of this, SWAT can be adopted by water engineers and hydrologists in Nigeria and other sub sahara Africa countries in the region as a decision support tool to assist policy makers in achieving sustainable sediment and water management at watershed level.
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    Development and Optimisation of Cassava Starch-Zinc-Nanocomposite Film for Potential Application in Food Packaging
    (Journal of Food Processing and Technology, 2016) Fadeyibi A; Osunde ZD
    The improvement of biodegradable film used in the food packaging has been made possible through nanotechnology. This research was carried out to develop and optimize the cassava starch-zinc-nanocomposite films for potential applications in food packaging. The zinc nanoparticles were prepared by sol-gel method and established with the particle sizes ranging from 4 nm to 9 nm. The films were developed by casting the solutions of 24 g cassava starch, 0% to 2% (w/w) zinc nanoparticles and 45% to 55% (w/w) glycerol in plastic mould of 8, 10 and 12 mm depths. The average thickness of the films varied respectively with the depth as 15.14 ± 0.22, 16.21 ± 0.36 and 17.38 µm ± 0.13 µm. Permeability and stability of the films were determined at 27°C and 65% relative humidity and thermal range of 30°C to 950°C, respectively. Also, the mechanical properties were determined using the nano indentation technique. The films were optimised based on their characterized attributes using their desirability functions. The hardness, creep, elastic and plastic works, which determined the plasticity index of the films, decreased with thickness and zinc nanoparticles. The water vapour permeability increased with the concentrations of glycerol, zinc nanoparticles and thickness while the oxygen permeability decreased with the nanoparticles. The degradations of the Nanocomposites at 100°C were in the range of 2%-3%, which may indicate that the films are thermally stable. The optimum film whose desirability function is closer to the optimisation goal gave values of 49.29% glycerol, 17 µm thickness and 2% zinc nanoparticles for maximum thermal and mechanical properties. The low permeability, high thermal stability and low plastic work at higher concentration of zinc nancomposites may be essential in food packaging.
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    Nano-Rheological Behaviour of Cassava Starch-Zinc Nanocomposite Film under Dynamic Loading for High Speed Transportation of Packaged Food
    (2016) Adeshina Fadeyibi; Zinash D. Osunde; Gbabo Agidi; Evans C. Egwim; Peter A. Idah
    This research was undertaken to determine the nano–rheological behaviours of cassava starch–zinc–nanocomposite films under dynamic loading for assessing their suitability as food packaging materials in high speed transportation. The films, with thickness ranging between 15 ± 0.22–17 ± 0.13 μm, were prepared by casting mixtures of 24 g cassava starch, 45–55% (w/w) glycerol and 0–2% (w/w) zinc nanoparticles in plastic moulds of 8–12 mm depths. The effects of the nanoparticles, thickness and glycerol on the rheological properties of the films, including the Young’s modulus, creep, hardness and plasticity index were determined using nanoindentation technique. The results show that the Young’s modulus and hardness of the films varied inconsistently with glycerol concentration and nanoparticles due probably to their isotropic nature and sensitivity to slight change in load. The plasticity index was lower for 15 μm film, which absorbed 40 pNm and dissipated 0.5 pNm during loading and unloading stages, respectively. The response of the 15 μm film to creep was higher than 16 μm and 17 μm films, and this may be consequence of lower wear at higher loads. This implies that the nanocomposite film might be suitable for high speed transportation of packaged food.
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    Cost effectiveness of sediment management strategies for mitigation of sedimentation at Jebba Hydropower reservoir, Nigeria
    (Elsevier, JournalofKingSaudUniversity–EngineeringSciences, 2016-01-22) Adeogun, Adeniyi Ganiyu; Sule,Bolaji Fatai; Salami, Adebayo Wahab
    Inthisstudy,acalibratedhydrologicmodel,SoilandWaterAssessmentTool (SWAT) interfacedwithGeographicalInformationSystem(GIS)toolwasusedtostudytheeffectofdiffer entsedimentmanagementmethodsinawatershed(12,992km2)upstreamofJebbaLake,Nigeria. Sedimentmanagementstrategiesconsideredare(i)reforestationofthewatershed,(ii)applicationof vegetativefilterstrip(VFS)and(iii)constructionofstonebunds.Costanalysisofimplementingthe selectederosioncontrolmeasureswithinthewatershedwasalsocarriedout tocomparethecost effectivenessof eachof themanagement strategies.Theresults showedthatapplicationofVFS, reforestation, andstonebunds tocritical zonesof thewatershedreducedthe sediment yieldup to65.6%,63.4%and12%respectivelywhilethefinancialanalysisof implementingreforestation, VFSandstonebundsrevealed84.9%,73.3%and70.5%reductionrespectivelyinthecoststobe incurredifsedimentsareallowedtoaccumulateinthedam.Fromthisanalysis, itcanbeconcluded thatthesedimentmanagementscenariosconsideredinthisstudyarecosteffectiveandsustainable whencomparedwiththecostsincurredintacklingtheeffectduetoreservoirsedimentation.Over all, thestudyshowedthathydrologicalmodelssuchasSWATcanbeusedtostudystrategiesfor waterresourcemanagement. Inaddition, itcanprovidepolicymakersthedecisionsupport tools toevaluatethecostandbenefitsofadoptingBestManagementPractices(BMPs)particularlyfor sedimentcontrol inerosionpronewatersheds.
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    Coupled 1D-2D Hydrodynamic Innundation Model for Sewer Overflow: Influence of Modelling Parameters
    (Taylor and Francis, 2016-02-12) Adeniyi Ganiyu Adeogun; Michael Olawale Daramola; Assela Pathirana
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    Performance evaluation of cassava starch-zinc nanocomposite film for tomatoes packaging
    (Italian Society of Agricultural Engineering, 2017) Adeshina Fadeyibi; Zinash D. Osunde; Evans C. Egwim; Peter A. Idah
    Biodegradable nanocomposite films are novel materials for food packaging because of their potential to extend the shelf life of food. In this research, the performance of cassava starchzinc- nanocomposite film was evaluated for tomatoes packaging. The films were developed by casting the solutions of 24 g cassava starch, 0-2% (w/w) zinc nanoparticles and 55% (w/w) glycerol in plastic mould of 12 mm depth. The permeability of the films, due to water and oxygen, was investigated at 27°C and 65% relative humidity while the mechanical properties were determined by nanoindentation technique. The average thickness of the dried nanocomposite films was found to be 17±0.13 μm. The performances of films for tomatoes packaging was evaluated in comparison with low density polyethylene (LDPE; 10 μm) at the temperature and period ranges of 10-27°C and 0-9 days, respectively. The quality and microbial attributes of the packaged tomatoes, including ascorbic acid, β-carotene and total coliform were analysed at an interval of 3 days. The results revealed that the water vapour permeability increased while the oxygen permeability decreased with the nanoparticles (P<0.05). The hardness, creep, elastic and plastic works, which determined the plasticity index of the film, decreased generally with the nanoparticles. The films containing 1 and 2% of the nanoparticles suppressed the growth of microorganisms and retained the quality of tomatoes than the LDPE at 27°C and day-9 of packaging (P<0.05). The results implied that the film could effectively be used for tomatoes packaging due to their lower oxygen permeability, hardness, elastic and plastic works.
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    Performance Evaluation and Modification of an Existing Rice Destoner
    (International Journal of Engineering and Technology, 2017) Mohammed Gana Yisa; Adeshina Fadeyibi; Kamil Kayode Katibi; O. C. Ucheoma
    Destoning is a processing technique for removing stones and broken grains from a batch of milled rice. This research was carried out to modify an existing rice destoner for the purpose of increasing its capacity and efficiency. Modification introduced addressed challenges associated with the existing machine, such as low stone removal efficiency and low air flow channel, which affects the aerodynamic lifting of the rice grains. Performance was evaluated for 3 kg of locally milled rice samples based on the design capacity of the machine, cleaning efficiency and degree of grain flow. The result showed that the design capacity (1.8 kg/h) of the modified destoner was higher than that of the existing (0.86 kg/h). Also, the modified machine has 40.8% destoning efficiency which is higher than that of existing machine (2.58%).