Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Synthesis and Characterization of Zinc Oxide Nanowire

ABSTRACT Zinc Oxide (ZnO) nanowires with hexagonal structure were successfully synthesized by chemical bath deposition technique. The obtained nanowires were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX) and spectrophotometer. The SEM micrographs revealed the morphology of ZnO nanowires with diameter between 170.3 and 481nm and showed that the pH of the bath solution, 8.1 is the optimized value to form ZnO nanowires with h...

Nutrient Composition and Organoleptic Attributes of Fresh and Sun-Dried Carica Papaya L and Solanum Macrocarpon L Fruit Soups Consumed by Tiv, Benue State

ABSTRACT The study determined nutrient composition and organoleptic attributes of fresh and sundried carica papaya L pawpaw (Mbuer) and solanum macrocrpon L.garden egg (Mngishim) fruit soups consumed in Tiv communities of Benue State, Nigeria. Processing, preparation and utilization of fresh and sundried pawpaw and garden egg fruits for soup production information was obtained from focus group discussion (FGD).The recipes used for the work was based on t mean values after (FGD). The fruits we...

Adsorption Kinetics of Toxic Metals from Brewery Waste Water Using Adsorbent Prepared from Borassus aethiopum

A comparative study was carried out on the remediation of brewery effluent (Beff) using derived adsorbent (Untreated and treated) and commercial activated carbon. Preliminary study and characterization of the brewery effluent, derived adsorbent and commercial activated carbon was recorded, with result showing physico-chemical properties of the effluent falls within, lower and higher than discharge limit outlined by NESREA and WHO. Result of the physico-chemical and instrumental character...

Bioelectricity Production from Abattoir Wastewater Using Microbial Fuel Cells Connected in Series

In a bid to further study the possibility of producing bioelectricity from microbial fuel cell (MFC), this study aims at increasing the production of bioelectricity in abattoir wastewater. The wastewater from abattoir was used to construct three different microbial fuel cells and they were connected in series. The voltage of electricity produced was recorded over the period of three days. The physiochemical property of the wastewater was determined. Also the microorganisms present in t...

BIOELECTRICITY PRODUCTION FROM WASTEWATERS USING MICROBIAL FUEL CELL

Electricity supply in Nigeria has been a recurring decimal as huge amount of capital is involved. The aim of the study is to produce bioelectricity in a microbial fuel cell (MFC) from wastewaters. Wastewater from abattoir, fish pond, and stream were used to construct a microbial fuel cell and their physiochemical and microbiological properties were determined and the voltage of electricity produced was measured. Wastewaters were separately inoculated using pour plate to determine bacterial...

Synthesis and Characterization of Some Halides and Chalcogenide Crystals Using Sol-Gel Method.

Abstract In this research work, sol-gel technique was used to grow some crystals of halide and chalcogenide compounds. These grown crystals were doped with locally produced dopants from bamboo, raffia and potash to see how they can affect the optical and structural properties of the crystals. Dopants were produced from local materials using top down approach where bulk materials (bamboo, potash and raffia) were whittled down through burning into carbon dioxide, water and residual ashes contai...

Physico-Technical and Tableting Properties of Grades of Microcrystalline Cellulose Derived from Sorghum and Andropogon Plants

CONTENTS Page Acknowledgement ........................................................................................................... iv Abstract ................................................................................................................................. vi List of Tables .................................................................................................................... xiv List of Figures .................................................................

Effect of Processing on the Nutraceutical Potential of Nturukpa (Pterocarpus Santalinoides) Leaf

ABSTRACT Samples from Nturukpa leaf were processed using different processing methods. The first portion was oven dried at 50oC for 8 hours while the second portion was further divided into four parts and steam blanched at 100oC for 2, 4, 6 and 8 minutes, respectively. After blanching, each part was also oven dried at 50oC for 10 hours. Each dried sample was milled into flour. The third portion was wet milled (1:2 leaf: water, w/v), filtered and the filtrate was pasteurized at 65oC for 30 min...

Potentials of Piper Guineence (Schum and Thom) and Mondora Myristica (Gaertn) for the Protection of Stored Maize (Zea Mays) Against Sitophilus Zeamais

ABSTRACT Undamaged and uninfested maize grains were hand picked, packaged in moisture proof package and disinfested in the deep freezer for 96 hours. Thirty six sets (500g per set) of disinfested maize were weighed into prepared containers. Each set of maize was infested with 200 live maize weevils (Sitophilus zeamais). The weevils were reared on whole maize at room temperature inside a plastic bucket covered with muslin cloth. Graded levels (0 to 10%) of coarsely ground spices Monodora myris...

Mathematical Modeling and Control of a No - Isothermal Continuous Stirred Tank Reactor, Cstr

ABSTRACT Mathematical Models describing the variations in the volume of the system, concentration of reactant (s) yet to react, temperature of the system, and the temperature of the cooling jacket over time in a non-isothermal CSTR that handles a simple, irreversible, first order or second order exothermic reaction in liquid phase were formulated. This work is with a particular reference to the synthesis of propylene from cyclopropane and that of cumene (isopropyl benzene) from benzene and pr...

Enhanced Information System for the SelfSustenance Activities of Tertiary Institutions (Case Study: University of Nigeria, Nsukka

ABSTRACT This project is concerned with the development of an Enhanced Information System for the Self-sustenance activities of Tertiary Institutions. Entrepreneurial activities are becoming common place in Nigerian institutions of higher learning, in their bid to raise funds in the face of dwindling government funding. The existing information systems are not sufficiently equipped to aid the managements of these institutions in the effective running of the fund generating ventures. The datab...

Locational Analysis of Industrial Plants at the 9th Mile Area of Enugu State, Nigeria

ABSTRACT This study examined the locational characteristics of the industrial activities at the 9th Mile area of Enugu State, Nigeria in order to identify the most important location factors, multiplier effects, and linkages among the industrial plants. The data analysed were collected from relevant sources using mainly the survey research method. Location quotient (LQ), Multiple Linear Regression (MLR) Analysis, and Principal Component Analysis (PCA) were adopted in the analyses of the data....

Comparison Between Calculated and Measured Entrance Skin Dose of Common Radiographic Procedures in Benue State University Teaching Hospital, Makurdi

ABSTRACT The Entrance Skin Dose (ESD) for common radiographic examinations of forty (40) patients was measured prospectively at the Benue State University Teaching Hospital, Makurdi using LiF thermo-luminescent dosimeter (TLD) chips. The examination comprised ten (10) patient’s each of chest, abdomen, pelvic and lumbar sacral regions.The mean ESDs obtained by LiF TLD for Chest X-ray (PA), Plain Abdomen, Lumbar Spine (AP) and Pelvic (AP) were 0.50 mGy, 0.20 mGy, 0.80 mGy, 0.70 mGy respective...

Phytochemical and Bioactivity-Guided Evaluation of the Antibacterial Constituents of Psidium Guajava (Linn.) and Loranthus Micranthus (Linn.) Leaves

ABSTRACT Antibiotics have remained the mainstay of drug therapy of infectious diseases worldwide. Their use is, however, limited by their numerous adverse effects and rapid development of microbial resistance. Identification of natural products from plants that may serve as valuable sources of antimicrobial agents for medicinal or agricultural uses seems to be a viable alternative to the conventional antibiotics. To achieve this goal, biological assays should be carried out in order to identi...

Economic Analysis of GSM Provision in Nigeria

TABLE OF CONTENT Chaptcr One: Introduction 1.1 Inrruduction .............. ............................................................................................................ I 1.2 Problem Definition ......................................................................................................... I 1.3 Aims and Ohjectivcs ..................... .................................................................................... 2 1.4 Significance of Study.+ ......................


1081 - 1095 Of 8194 Results