826. DEVELOPMENT AND HEAT TRANSFER SIMULATION OF EPOXIDIZED JATROPHA BIOLUBRICANT FOR SPARK IGNITION ENGINES

ABSTRACT

Vegetable oils need to be chemically modified before being used for biolubricant production for internal combustion engines applications. One of the most effective chemical modifications for vegetable oils is epoxidation of its double bonds. In this work, Crude Jatropha oil (CJO) was epoxidized using peracid generated in-situ by the reaction of formic acid and hydrogen peroxide using sulfuric acid as catalyst. FTIR and Iodine Value were used to confirm the formation of epox...

827. DEVELOPMENT AND CHARACTERISATION OF BANANA PEDUNCLE FIBRE REINFORCED POLYESTER COMPOSITES USING COW HORN ASH PARTICLES AS FLAME RETARDANT ADDITIVE

1.1Backgroundof the Study

Fibre-reinforced composites are used in a wide range of applications such as automobiles, aircraft, ships, boats, pipelines, sport equipment, storage tanks, etc. The traditionalpolymeric and metallic materials have been replaced successfully by fibre-reinforced composites (Ihueze & Okafor, 2012). This is as a result of their high strength-to-weight ratio, light weight, goodchemical andcorrosion resistance, fatigue resistance and low maintenance requirem...

828. DEVELOPMENT AND ACCEPTABILITY OF NATURAL AND SYNTHETIC LEATHERWORKS FOR INTERIOR DECORATION IN KANO STATE, NIGERIA

ABSTRACT

This study was on development and acceptability of natural, synthetic and mixed leatherworks for interior decoration in Kano State, Nigeria. Seven specific objectives and six research questions were formulated to guide the study. R&D design was adopted for the study. The population of the study was552 respondents and 20 panel of judges who were academic staff of Saadatu Rimi College of Education, Kumbotso, Kano. The sample for the study was 217 and 20 panel of judges. F...

829. DEVELOPING COMPUTER-BASED SYSTEM FOR MAINTENANCE PLANNING AND SCHEDULING OF HOSPITAL BUILDINGS IN NNAMDI AZIKIWE UNIVERSITY TEACHING HOSPITAL NNEWI,ANAMBRA STATE NIGERIA

1.1Background To The Study

Building is a major infrastructure in any hospital and is regarded as an enclosure or “envelope” designed and constructed to provide minimum level of comfort, protection and conveniences for man. Building provides safety, protects human inhabitants, animals, materials and equipment from effects of weather, and gives internal comfort (Ogunoh, 2008). According to Obiegbu (2003) a building is an essential modifier of micro-climate, (that is winds,...

830. DETERMINATION OF SOME HEAVY METALS IN FISH AND LIVESTOCK FEEDS, MANURE AND RIVERS IN SELECTED STATES IN NORTHERN NIGERIA

Abstract

The increasing levels of environmental pollution by toxic metals from various sources have generated a great concern on their impact on human health. Rapid developments, increase in mining activities, farming, insurgency, industrial activities and waste disposals have gradually redistributed many of the toxic metals from the earth crust to the environment, raising the chances of exposure through ingestion, inhalation or skin contact. This study is aimed at determining the c...

831. DETERMINATION OF YEARLY PERFORMANCE AND DEGRADATION RATE OF ELECTRICAL PARAMETERS OF AMORPHOUS SILICON PHOTOVOLTAIC MODULE IN MINNA, NIGERIA

ABSTRACT

There is need for accurate knowledge of performance, degradation rate and lifespan of photovoltaic (PV) module in every location for an effective solar PV power system. Outdoor degradation analysis was carried out on amorphous silicon PV module rated 10 W using CR1000 software-based Data Acquisition System (DAS). The PV module under test and meteorological Sensors were installed on a metal support structure at the same test plane. The data monitoring was from 09:00 to 18:00...

832. DETERMINATION OF YEARLY PERFORMANCEAND DEGRADATION RATE OF ELECTRICAL PARAMETERS OF A MONOCRYSTALLINE PV MODULE IN MINNA, CENTRAL NIGERIA

ABSTRACT

There is a need for accurate knowledge of the performance, degradation rate, and lifespan of the photovoltaic (PV) module in every location for an effective solar PV power system. Outdoor degradation analysis was carried out on a mono-crystalline PV module rated 10 W using the CR1000 software-based Data Acquisition System (DAS). The PV module under test and meteorological Sensors were installed on a metal support structure on the same test plane. The data obtained was monit...

833. DETERMINATION OF THE EFFECT OF EXTRACTED OXYGEN HETEROCYCLE ON THE DEHYDROCHLORINATION OF VI NYLIDENE CHLORIDE COPOLYMER

1.1Background of study

Vinylidine chloride, also referred to as 1,1-dichloroethylene (1,1-DCE) is a colourless liquid (b.p.  32.2qC),  produced  by  dehydrochlorination  of  1,1,2  ±trichloroethane  [Cl2CH CH2Cl],  a relatively  unwanted  by-product  formed  in  the  production  of  1,1,1±trichloroethane  and  1,2± dichloroethane. Conversion to 1,1±DCE involves...

834. DETERMINATION OF SELF EMPELOYMENT SKILLS NEEDED BY BUSINESS EDUCATION STUDENTS IN COLLEGES OF EDUCATION IN SOUTH -WEST

Background of the Study

Education is the bed rock of a nation‟s economy. It is the suitable legacy with which a child should be left in order to successfully exist in life and to remain productively capable in any economy. Education is also seen to be the robust step in paving the way for the citizenry of a nation to achieve their desired interest in the world of business. Education has also been viewed as the instrument used to impact in-depth knowledge and understanding so as to a...

835. DETERMINING THE PROPER LAW OF CONTRACT UNDER PRIVATE INTERNATIONAL LAW

ABSTRACT

Where a dispute arises from the breach of a term or terms of a contract between 'A' a Nigerian and 'B' an Italian, the court which entertains the action will employ an objective test in order to determine the law to govern the resolution of this dispute. Before arriving at this law, the court considers the intention of the parties regarding their choice of law.

The parties' intention could be expressed where they provide that "Nigerian law...

836. DEVELOPING EFFECTIVE STRATEGY FOR PENSION ADMINISTRATION IN THE NIGERIAN PUBLIC SECTOR (A STUDY OF PENSION COMMISSION RIVERS STATE, NIGERIA)

ABSTRACT

This research work is designed to develop effective strategy for pension administration in the Nigeria public sector, using pension commission as a study. The research work reveals how some retirees are forced to continue to work throughout their life, not out of choice but for lack of means of sustenance at old age. The sources of data collection for this work are primary and secondary sources, the researcher in this process of data collection for the research regarded the...

837. DETERMINATION OF THE NUMBER OF NON-ABELIAN ISOMORPHIC TYPES OF CERTAIN FINITE GROUPS

Abstract

The first part of this work established, with examples, the fact that there are more than one non-abelian isomorphic types of groups of order n = sp, (s,p) = 1, where s<p and p º 1 (mod s) for 100 < p < 4000. The factors s and p are distinct primes. Specifically considered here are groups of order n = 2p, 3p, 5p, 7p, 11p and 13p. It was discovered that the number of non-abelian isomorphic types of groups of order n = sp, s<p increased as n increased. The de...

838. DETERMINANTS OF CARRYING CAPACITY OF ACADEMIC PROGRAMMES IN FEDERAL UNIVERSITIES IN NIGERIA

ABSTRACT

Universities’ inadequate provision of human resources, material resources and infrastructural facilities due to poor funding resulted in the formulation of principles of faculty carrying capacity that admission of students be based on available facilities such as classrooms, staff, equipment and materials. Admission to universities in Nigeria is highly competitive because of the increasing importance attached to university education in the development of individuals a...

839. DETERMINATION OF PHYSICOCHEMICAL AND HEAVY METAL CONTENT OF SOIL AROUND THE VICINITY OF SELECTED INDUSTRIES IN KADUNA METROPOLIS

ABSTRACT

The soaring trend of environmental contamination by heavy metals is a global issue. The continual monitoring of soils around industrial areas becomes necessary. The present study focused on the physicochemical and heavy metal concentration in soil around the vicinity of selected industries in Kaduna metropolis. The mean pH, electrical conductivity, % organic matter, % sand, % clay and % silt obtained were 7.16±0.35, 362.60 ±10.7µS/cm, 2.92±0.50, 7...

840. DETERMINATION OF NATURAL RADIOACTIVITY OF SOME SELECTED ECONOMIC MINERALS FROM QUARRY SITES IN IGARRA AREA, EDO STATE, NIGERIA

ABSTRACT

Activity concentrations of radionuclides in rocks and minerals are of vital importance in geosciences and health physics especially that primordial radionuclides constitute the main source of radiation exposure risks externally in soil, rocks and minerals. In this study, samples of four (4) economic minerals, namely dolomite, feldspar, limestone and calcite, were collected from quarry sites in Igarra area, Edo State, Nigeria and analysed using gamma ray spectrometric techni...

841. DETERMINATION OF LEAD AND CADMIUM IN SOME HERBAL PREPARATIONS SOLD BY HAWKERS IN ZARIA AND ENVIRONS

ABSTRACT

Most people administer herbal preparations of different types without considering their side effects. Six sites were selected for the study based on the frequency of consumption. The areas were Kofar Doka, Danmagaji, Tudunwada, Sabongari, Kwangila and Samaru. Five different samples were randomly collected from each area of the study. Wet digestion method was employed to obtain clear solution of the sample. Atomic Absorption Spectrophotometric technique was used to quantify...

842. DETERMINATION OF LEAD (Pb) LEVELS IN SELECTED MINING COMMUNITIES IN ZAMFARA STATE - NIGERIA

ABSTRACT

In 2010, the world’s attention was drawn to Zamfara State, Nigeria following the ‘unprecedented’ death reported (particularly of children) as a result of lead poisoning in the process of small scale gold mining of lead-rich ore using rudimentary tools. This study was aimed at a wholistic assessment of lead levels in the affected communities. Lead (Pb) levels were determined from samples of residential compound soil, underground and surface water, common gr...

843. DETERMINATION OF LEAD (Pb) LEVELS IN SELECTED MINING COMMUNITIES IN ZAMFARA STATE - NIGERIA

ABSTRACT

In 2010, the world’s attention was drawn to Zamfara State, Nigeria following the ‘unprecedented’ death reported (particularly of children) as a result of lead poisoning in the process of small scale gold mining of lead-rich ore using rudimentary tools. This study was aimed at a wholistic assessment of lead levels in the affected communities. Lead (Pb) levels were determined from samples of residential compound soil, underground and surface water, common gr...

844. DETERMINATION OF HUMAN RESOURCE MANAGEMENT PRACTICES OF MANAGERS OF SMALL AND MEDIUM ENTERPRISES IN ANAMBRA STATE

Background to the Study

Small and Medium Scale Enterprises (SMEs) are deemed to be integral to the growth and development of any forward thinking nation. Small and medium enterprises (SME) are seen as agents of economic development and contribute to improved living standards, substantial local capital formation, and achieve high levels of productivity and capability for individuals and nations. Muogbo (2013) was of the opinion that SMEs are very important because they are the key dr...

845. DETERMINATION OF COMPETENCIES REQUIRED BY TRADE ARTISANS FOR DOMESTIC AND INDUSTRIAL ELECTRICAL INSTALLATIONS IN ENUGU STATE

Background to the Study

The state of the economy and socio-economic well-being of any society is linked to the effectiveness of its education and the competencies of the work force. The effectiveness of any nation's labour force and skill development programme can be achieved when it is geared towards functional system of education such as technical, vocational education and training (TVET). This is because according to Samuel (2011), technical, vocational education and training...

846. DETERMINATION OF Cd, Co, Cu, AND Fe IN WATER AND SOME VEGETABLE CROPS CULTIVATED AROUND GALMA AND KUBANNI RIVERS, ZARIA

ABSTRACT

The level of some trace elements including cadmium, cobalt, copper and iron in water and vegetable samples of cabbage (Brassica oleracea var capitata); lettuce (lactuca sativa L); maize (zea mays); okra (Abelmoschus esculent L ); onion (Alium spp) and spinach(Amarantus spp) along the banks of Galma and Kubanni rivers in zaria were determined during the rainy and dry seasons,(June to August 2005 and January to March 2006 respectively), by Atomic Absorption S...

847. DETERMINATION OF CALCIUM AND PHOSPHORUS IN STAPLE FOODS IN RICKETS PREVALENT AREAS IN KADUNA STATE.

ABSTRACT

The beginning of the 20th century witnessed the epidemic of nutritional rickets among children in many countries of Asia, North America, Northern Europe and Africa. It was observed that a low dietary intake of calcium among rural children is a major contributor to rickets disease. Nutritional rickets remain a problem in many countries of the world despite a decline in the prevalence of the condition in many developed countries. Prevalence of rickets remain high in Nigeria a...

848. DETERMINATION OF ACTIVE SWEET COMPONENTS OF COMMON ARTIFICIAL SWEETENERS THAT ARE USED AS REPLACEMENT FOR SUGAR

ABSTRACT

This research investigated how the sweetness of sugar substitute compares to the sweetness of sugar. In this research different percentage solution of sugar, artificial sweetener and natural sweetener (10%, 1%, 0.1% and 0.01%) were prepared. Ten volunteers were gathered for the sensory evaluation in this case tasting of the solution, the volunteer‟s taste threshold of data was gotten. The artificial sweetener was found out to be the sweetest among the substances experimente...

849. DETERMINATION OF AN IMPROVED SPECTRUM SENSING THRESHOLD FOR COGNITIVE RADIO USING SMOOTHED PSEUDO WIGNER-VILLE DISTRIBUTION

ABSTRACT

Cognitive radio (CR) has been suggested as the solution to spectrum scarcity due to the fixed allocation employed worldwide by regulatory bodies.A secondary usercan opportunistically access the licensed frequency bands without causing harmful interference to the licensed user. In order to avoid interference to a primary user signal,the CR has to be aware about the spectrum usage inthe geographic area in which it wants to operate. The process of spectrumsensing is a fundamen...

850. DETERMINATION OF AN IMPROVED SPECTRUM SENSING THRESHOLD FOR COGNITIVE RADIO USING SMOOTHED PSEUDO WIGNER-VILLE DISTRIBUTION

ABSTRACT

Cognitive radio (CR) has been suggested as the solution to spectrum scarcity due to the fixed allocation employed worldwide by regulatory bodies.A secondary usercan opportunistically access the licensed frequency bands without causing harmful interference to the licensed user. In order to avoid interference to a primary user signal,the CR has to be aware about the spectrum usage inthe geographic area in which it wants to operate. The process of spectrumsensing is a fundamen...