Hydrolyzed starch graft poly (acrylic acid) and starch graft poly(acrylonitrile) copolymers were used as a sorbents for the removal of Pb(II) from aqueous solution in batch process. The sorbents were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis. The effect of contact time, initial concentration and temperature were assessed to optimize the conditions for maximum sorption of the metal ions. The experimental data were anal...
Hydrolyzed starch graft copolymers of acrylic acid and acrylonitrile were used as a sorbents for the competitive removal of Pb (II), Cd (II) and Cu (II) ions from aqueous solution in batch process. The sorbents were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, wide-angle x-ray diffractometer and thermogravimetric analysis. The equilibrium sorption properties were assessed to optimize the conditions for maximum competitive sorption of the metal ions. ...
The mechanical properties of snail shell reinforced unsaturated polyester composite was assessed in this study. Ground snail shells of particle size 65μm were introduced at different percentages into the unsaturated polyester resin. The powdered shells were characterized using FTIR to determine the functional groups present. The tensile test was performed using an Instron universal testing machine operated at a cross head speed of 10mm/min. The tensile test specimen preparation and testing p...
There is a growing interest in the research community of the possibility of reducing or total elimination of zinc oxide (ZnO) as activator in rubber compounds. This study therefore is an attempt in that direction to study the effect of polyethylene glycol (PEG) as an alternative activator in rubber compounds. Various levels of polyethylene glycol (0,2,3,4,5,6 phr) and zinc oxide (as reference) were compounded with 100phr of natural rubber and other compounding additives. The effects of both p...
ABSTRACTNew interactive computing applications are continually being developed in a bidto support people’s changing work and recreational activities. As research focuses on oneparticular class of interactive systems, high level models of interaction are formulated andrequirements emerge that reflect shared features or common functionality among those systems.Within this seminar a new class of interactive syst...
An automated event management system that works on all platforms/ Abstract Event management system is used to manage all the activity related to event. Inany event many service providers work simultaneously and it is very hard tomanage these providers. It is also important for event organizer that he has allthe contacts details of these service providers so that he can contact them anytime to plan an event at given time. This research work is todesign and implement a Multi-pla...
Chapter oneIntroduction1.1 Background of the StudyIn the advanced world like China, Britain, Australia and the United State ofAmerica, ticketing system are usually automated with the use of internet and e-commerce. Smart cards are usually used to make payment and ticket generatedafter. The use of electronic ticketing system has increasingly helped to address theproblem of long queue and time wastage problem. (Watts, 2012).An electronic ticketing system is a computerized system that is designe...
ABSTRACT This study was carried out to investigate the characterization and utilization of guava flavour concentrate produced from two guava cultivar using simple distillation technique for the flavor extraction. The physical properties of the flavor concentrate were determined and then utilized in the formulation of guava drinks with three different clouding agents (gum Arabic, garri aliquot and cheese-whey). The guava drink samples were also evaluated for different quality attributes whic...
ABSTRACT Endophytic microorganisms have proven to be potential sources of antimicrobials against recalcitrant pathogens. Extracts of an endophytic fungus, Emericella nidulans exhibited antibacterial activity against selected pathogens. Emericella nidulans was cultivated in broth and fermented at 28 ± 2°C for 7days and 21 days to obtain bioactive components. Solvents extraction of bioactive compounds from Emericella nidulans in the order of their polarity – n-Hexane, et...
Aim: This study is aimed at investigating the prophylactic efficacy of combined extract of Curcumalonga and Moringa oleifera leaf against indomethacin–induced ulcer in albino rats.Place and Duration of Study: This research was carried out in Ibadan Nigeria betweenNovember 2017 and January, 2018.Methods: Fifty (50) healthy male albino rats with body weights between 150 and 200 g were usedfor this study. They were randomly divided into ten groups of five rats each. Group I was administered...
Aim: This study is aimed at investigating the hepatoprotective effect of Parkia biglobosa on acuteethanol-induced oxidative stress in wistar rats.Methods: P. biglobosa was purchased from a local market at Orita-Challenge area of Ibadan,Nigeria. They were sun dried and milled into powder using an electronic blender (Moulinex). Thepowder was extracted using n-hexane. Twenty adult male wistar rats with body weight between120 and 150 g were purchased from the Central Animal House, College of Medi...
Abstract The advent of Global Navigation Satellite Systems (GNSS) in space technology has tremendously improved the methods of positioning and navigation. Countries are now adopting the continuous observation and measurements using a network of GNSS receivers called Continuously Operating Reference Stations (CORS) as the standard. Hence, the study explore the CORS network in South West Nigeria and carry out site suitability analysis of the potential locations considered suitable for the insta...
The effect of fermented palm wine tapped from Raphia palm tree (Raphia hookeri) on the growth ofsome common diarrhoeagenic bacteria such as Staphylococcus aureus, Escherichia coli,Salmonella typhi, Shigella dysentariae and Esherichia coli 0157:H7 was carried out using agardiffusion method. The palm wine used had growth inhibitory effect on all the test organisms withdiameter of zones of inhibition ranging from 2.20mm to 28.20mm. Palm wine subjected tofermentation for 168hours (7 days) exerted...
Aim: The aim of this study is to evaluate the nutritional and anti-nutritional composition of garriprocessed by traditional and instant mechanical methods.Place and Duration of Study: This study was carried out in Achara, Uturu and analyses weredone at the Biochemistry and Central Laboratories of Gregory University, Uturu, Abia Statebetween March and July, 2017.Methods: Cassava was harvested and processed in Achara area of Uturu, Abia State. For garriprocessed by instant mechanical method, ca...
Rhodanese, a cyanide detoxifying enzyme, was isolated and partially purified from malted maize (Zea mays) using 85% ammonium sulphate precipitation and ion-exchange chromatography on CM- Sephadex C-25. The specific activity of the enzyme obtained was 5.07RU/mg protein with a yield of 9.6% and purification fold of 2.13. The Michaelis constant (Km) values of the substrates sodium thiolsulphate (Na2S2O3) and potassium cyanide (KCN) were 80 mM and 300mM while their Vmax were 4.86 RU/ml/mi...