Abstract Leaves and stems of castor oil plant (Ricinus cummunis), Barbados nut plant (Jatropha curcas) and Goat weed (Ageratum conyzoides) were investigated in the field during the 2018 cropping season at Umudike against Okra flea beetles, Podagrica spp (P. uniforma and P. sjostedti) for their insecticidal efficacy. NH47-4 Okra variety was used in the trial. The experimental design was Randomized Complete Block Design (RCBD) with seven treatments and four replicates. Results showed that the ...
There exists rights, powers and restrictions on the holders of the petroleum licences in the Nigerian Petroleum Industry, but these rights and powers are whittled down by the provisions of the Petroleum Act and other relevant legislations. The constitution vests the ownership of mineral resources to the Federal Government and by the Land Use Act, all lands are vested in the State Government. The rights and powers of the holders of the licences/leases can be revoked but must be done in accorda...
How Much quantity of dung needs to be collected to be used in an Anaerobic Digestion process to make it economically viable? How can the collected dung be used to generate electricity and heat in a combined heat and power? What CHP technology gives you the best electrical to thermal heat ratio?
The drying and particle size characterization of Danta (Nesogordonia papavereria) and HardCross (Vitex doniana) hardwood sawdusts were investigated at temperatures 80 ºC, 90 ºC and105 ℃. The experimental drying data were modeled using eighteen existing drying models.The results showed that the modified Henderson and Pabis model offered the best fit to thedrying curves of Danta and Hard Cross sawdusts. The experimental data obtained from theparticle size distribution of both the samples we...
The production of soy-yoghurt by fermentation of soymilk with lactobacillus isolated from nunu (a Nigerian indigenous fermented cow-milk) was studied. Soymilk was extracted from whole and dehulled soybean seeds and pasteurized. The fermentation was carried out with both the isolate from nunu and yoghurmet (a commercial yoghurt starter culture of Streptococcus thermophilus and Lactobacillus bulgaricus) as control. The percentage of soymilk inoculated was 70%, 80% and 100% of the broth. Soy-yog...
ABSTRACT The aim of this project, the design and implementation of an RF communication link, is to design a communication link between a source and a destination and study the properties of the signal being generated by the source (generator). The area of interest in this work is how the signal suffers limitations like attenuation, interference and distortion etc and to observe how these limitations affect the smooth transmission of the signal as well as the amplitude of the transmitted signa...
Abstract: This research work seeks to analyze the radio propagation characteristics of a GSM operative network using Makurdi as a case study. The analysis of radio propagation by a GSM operative entails the characteristics/ behavior of the radio wave between the transmitter and the receiver. An understanding of the radio wave propagation characteristics of an environment is a necessary condition for effective radio network planning which translate to the determination of the coverage ...
The mathematical model of diesel engine and its speed regulation system are presented and computer simulation is conducted in Matlab software. Simulation results verify that the proposed method improves the control accuracy of speed of diesel engine. A fuzzy PID hybrid controller and a Genetic Algorithm PID of parameter self-adjusting is put forward in this paper. Chapter I: Case Study 3 Statement of Problem.........................................................................................
ABSTRACT The need for effective and efficient means of oil extraction has been a concern in recent time. Hence, this study aimed at the oil extraction from Moringa oleifera seeds using the Microwave-Assisted extraction method. The extraction process was modeled using Response Surface Methodology (RSM). Also, the evaluation of Moringa oleifera oil as a good feedstock for biodiesel production was carried out. Oil was extracted from the M. oleifera seed kernel using Microwave-Assisted meth...
Gas flaring is one of the major problems in the world. It consumes useful natural resources and produces harmful wastes, which have negative impacts on society. It is one of the most tedious energy and environmental problems facing the world today. It is a multi-billion dollar waste, a local environmentalcatastrophe and environmental problem which has persisted for decades. From the year 1996-2010, in Nigeria, 12,602,480.25 million ft 3 of natural gas was flared (NNPC). This is equivalent to ...
There are numerous gas hydrate reserves all over the world, especially in permafrost regions and ocean environments. The abundance of gas hydrate reserves is estimated to be more than twice of the combined carbon of coal, conventional gas, and petroleum reserves. These hydrate deposits hold a significant amount of energy which can make hydrate a sustainable energy resource. The comprehensive research on the properties and formation of methane hydrates is paramount to ensure efficient and effe...
Hydrate formation can cause serious problems in hydrocarbon exploration, production, and transportation, especially in deepwater environments. Hydrate-related problems affect the integrity of the deepwater platforms, leads to equipment blockages, and also increases operational costs. In order to solve these problems, salts are used as thermodynamic inhibitors and also mixed with the drilling fluids in most drilling processes. A comprehensive understanding of hydrate formation in aqueous salt ...
The dissociation conditions of methane hydrate in high concentration aqueous solutions of NaCl, KCl, and CaCl2 are reported in this work. A total of 80 sets of H−L−V equilibrium data of methane hydrate in aqueous solutions of NaCl (9.45−23.71 wt %), KCl (13.93−21.88 wt %), and CaCl2 (13.78−35.50 wt %) were measured at the temperature range of (273.65−291.85) K and the pressure range of (5.43−65.12) MPa. A modified step-heating method with high efficiency was employed in the meas...
Upgrade of wastewater treatment plants to improve nutrient removal.
Abstract The study focused on the impact of petroleum industrial degradation on agricultural produce in Ilaje Local Government of Ondo state. Four research questions were developed in conformity with the purpose of the study. The study adopted survey research design. Questionnaires were administered to elicit information on crop productivity, livestock productivity, forest and aquatic organisms and therefore the strategies to cope with the impact of petroleum industrial degradation. A total o...