Browsing Technology by Issue Date

EFFECT OF CRUDE OIL CONTAMINATED SAND ON THE ENGINEERING PROPERTIES OF CONCRETE

WASIU, OLABAMIJI AJAGBE (2013-01-28)

ABSTRACT A considerable fraction of sand in Niger Delta Area of Nigeria is contaminated with crude oil. The contaminated sand is largely utilised by local contractors for the production of concrete. However, there is need ...

PROCESS OPTIMISATION OF MECHANICAL OIL EXPRESSION FROM Moringa oleifera (Lam.) (MORINGA) SEEDS

ABIOLA, FAKAYODE, OLUGBENGA (2015-07-14)

ABSTRACT Moringa oleifera plant is a promising nutritional and economic resource for developing countries. Previous studies on moringa plant have focused largely on its medicinal and nutritional uses, with only a few on ...

CHARACTERISATION OF CONCRETES PRODUCED FROM GRAVEL FROM SELECTED LOCATIONS IN SOUTHWESTERN NIGERIA

SULYMON, NURENI ADEYINKA (2015-08-15)

ABSTRACT Aggregates being major components of concretes have appreciable effect on their properties and cost. Gravels are often used as coarse aggregate for concrete due to its low cost and availability. However, technical ...

HARMONIC ANALYSIS AND MITIGATION IN SELECTED NIGERIAN 33KV DISTRIBUTION NETWORKS

MUTALUB, ADESINA LAMBE (2016-06-26)

ABSTRACT The non-linear characteristics of power electronic loads introduce harmonics, which may result in power distribution losses and reduction of the operational efficiency of equipment. Therefore, minimization of ...

MODELLING IMPROVED WORKING INTEREST IN OIL AND GAS INVESTMENTS

AKINPELU, LATEEF OLASUNKANMI (2016-08)

Risk pervades all aspects of the oil and gas Industry. Of all the risks, technical risk in the exploration phase is the most challenging, in which the chance of drilling a dry hole is quite significant. Investors usually ...

MODELLING ENERGY INPUTS, OUTPUTS AND CONSUMPTION PATTERNS OF SELECTED CROPS IN NIGERIA

KOSEMANI, BABAJIDE SAHEED (2017-03-10)

ABSTRACT Energy consumption in agriculture has increased year by year while more intensive energy use has led to some environmental problems such as natural resources depletion and climate change. Such problems can be ...

PHYSICAL, CHEMICAL, PHYSICOCHEMICAL AND THERMAL CHARACTERISATION OF HYDROTHERMAL AND ACID-THINNED STARCHES FROM COCOYAM (Colocasia esculenta, Xanthosoma sagittifolium) AND BITTER YAM (Dioscorea dumetorum) CULTIVARS

ADEBOYEJO, FOLASADE OLABIMPE (2017-05)

The huge industrial starch demand and utilisation in Nigeria are met mostly from imported sources. Intrinsic properties of starch from commodities such as cocoyam and bitter yam which have the potential to satisfy this ...

DEVELOPMENT OF HEURISTICS FOR SINGLE PROCESSOR SCHEDULING PROBLEMS WITH TARDINESS - RELATED PERFORMANCE MEASURES

AKANDE, SAHEED (2017-06)

Scheduling problems involve the processing of jobs on processor(s) subject to constraints to optimise performance measures. Determining schedules that minimise tardiness-related performance measures for single processor ...

PERFORMANCE CHARACTERISATION OF AN AUTORICKSHAW ENGINE EQUIPPED WITH A CONTINUOUSLY VARIABLE TRANSMISSION

AJAYI, OLUWASEUN KAYODE (2018-03)

Autorickshaws, known as Keke Marwa in Nigeria, were designed such that clutch and gear change levers were mounted on the same steering handle, making gear change strenuous for the drivers. Research efforts on autorickshaws ...

PERFORMANCE CHARACTERISATION OF COMPRESSION IGNITION ENGINE USING TRUNCATED CONE PISTON CROWNS

TOWOJU, OLUMIDE ADEWOLE (2018-10)

Compression Ignition (CI) engines are widely used in transportation and power generation industries in Nigeria. However, their low thermal efficiency and high emissions have necessitated continuous efforts at redesigning ...

ANALYSIS OF THE STRUCTURAL INTEGRITY OF AN AUTOMOBILE ALUMINIUM ALLOY WHEELWITH SELECTED COOLING HOLE GEOMETRIES

IGBUDU, Samuel Onoriode (2018-11)

Aluminium alloy wheels are increasingly popular for their light weight and good thermal conductivity. However, there are efforts to introduce Cooling Holes (CH) to reduce their weight without compromising structural ...

IMPROVED MATERIAL BALANCE EQUATION OF SHALE GAS RESERVES AND PRODUCTION

ALAWODE, ADEOLU JULIUS (2018-12)

Langmuir adsorption isotherm has been used extensively when incorporating gas desorption into gas Material Balance Equation (MBE) framework. However, it over-estimates adsorbed gas reserves at higher pressures without ...

CHEMICAL, MICROBIOLOGICAL AND SENSORY PROPERTIES OF DAIRY, NON-DAIRY YOGHURTS AND CHEESE PRESERVED WITH AFRICAN CARDAMOM (Aframomum danielli K. Schum.)ANDTURMERIC (Curcuma longaL.)

ABIONA, STELLA OLUSOLA (2019-03)

Yoghurt and cheese are the common dairy products consumed in Nigeria, but they are highly susceptible to deterioration during storage. Natural preservatives are generally preferred to synthetic ones which are likely to be ...

ELECTRICITY GENERATION POTENTIAL FROM MUNICIPAL SOLID WASTE IN UYO METROPOLIS, NIGERIA

EKPO, DOMINIC DAVID (2019-03)

Disposal of Municipal Solid Waste (MSW) has been identified as a major environmental challenge in developing countries. Electricity generation has been identified as one of the ways for utilisation of MSW. Literature is ...

PERFORMANCE AND EMISSION CHARACTERISTICS OF SPARK IGNITION ENGINE OPERATING WITH PURIFIED BIOGAS

OLUGASA, Temilola Taiwo (2019-05)

The Spark Ignition (SI) engine remains a global prime mover in the agricultural and transportation sectors as well as in electricity generation. However, its low thermal efficiency and consequential high emissions as ...

EFFECTS OF ROLLING PROCESS PARAMETERS ON THE MECHANICAL AND MICROSTRUCTURAL PROPERTIES OF HOT –ROLLED ST60Mn STEEL

NWACHUKWU, PETER UGWU (2019-05)

Hot-rolled St60Mn steel is commonly used in the construction of bridges and houses. Reduced quality characterising hot-rolled steel has become a major research concern. Previous studies focused on the effects of chemical ...

PHASE BEHAVIOUR AND ASPHALTENE ONSET PRESSURE PREDICTION DURING GAS INJECTION IN OIL RESERVOIRS

OGUAMAH, IFEANYI UCHE ALEX (2019-06-10)

Asphaltene Precipitation (AP), a major challenge in the petroleum industry, causes flow assurance issues in reservoirs, pipelines and flow lines. It is therefore important to properly characterise petroleum fluids and ...

DYNAMICS OF WATER AND NUTRIENT USE, STRESS DEVELOPMENT AND YIELD OF Corchorus olitorus Linn.

EHUMADU, CHIKODI NWOKOMA (2019-10)

The need to remove more water in agricultural production, without limiting crop growth and yield, has led to the development of crop models. This makes more water available for domestic and industrial uses. Studies on ...

CHARACTERISATION OF POLYGALACTURONASE PRODUCED BY ASPERGILLUS AWAMORI CICC 2040 ON SELECTED PRETREATED FRUIT PEELS AND ITS APPLICATION IN JUICE PROCESSING

ADEDEJI, OLAJIDE EMMANUEL (2019-10)

Utilisation of orange and plantain peels as substrates for production of polygalacturonase is increasing due to their high pectin content and availability. However, high ligno-cellulosic content of these peels limits ...

DEVELOPMENT OF AN IMPROVED LOGISTIC MAPPINGFUNCTION FOR OBJECTIVE ASSESSMENT OF QUALITY OF RECEIVED SPEECH OVER MOBILE TELEPHONE NETWORKS

PATRICK, OLANIYI OLABISI (2020-02)

Users’ perspectives approach provides an unbiased assessment of Quality of Service (QoS) of voice offerings in telecommunication networks. This approach is implemented using subjective or objective technique. Though the ...

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