Category Archives: International Journal of Engineering and Emerging Scientific Discovery

CONTENTS

An Evaluation of Rigid Rotor Behavior of Nuclear Deformation of Mass

E. W. Likta ………………………………………………………………..……………..1

Improvement of Bearing Capacity of Sandy Soil by Grouting

Abolusoro S.A.; Gana A.J; Adewara Sunday O. & Olaitan A.O. ……………….10

Evaluation of Milling Characteristics of Some Varieties of Paddy Rice in Cottage Industries of Ondo and Ekiti States in South West Nigeria

Abiodun A. Okunola, Adeniyi Olayanju, Adejoke D. Adewumi & Stephen A. Abolusoro ………………………………………………………………………….….30

Electrical Engineers’ Perception of Competencies Needs of Electricity Distribution Company Staff for Enhancing Quality Power Supply in Benue State.

Iorbee, Michael Mlahaga; Abur, Christopher Terwase & ³Iorvev, Nathaniel Msen…………………………………………………………………………………………36

Causes, Effects and Remedies to the Effects of Armature Reaction in D.C Machines

Oshin, Ola Austin; Fakorede Ebenezer, Adanikin Ariyo, Joseph Ojotu & Oluwasanmi Alonge………………………………………………………………….47

AN EVALUATION OF RIGID ROTOR BEHAVIOR OF NUCLEAR DEFORMATION OF MASS

E. W. Likta

Department of Physics,

University of Maiduguri, P.M.B 1069, Maiduguri, Borno State. Nigeria. West Africa.

Email: emmalikta2014@gmail.com

ABSTRACT

The goal of this paper is to obtain rigid rotor behavior of the nuclear deformation of mass. Empirical formulae have been achieved. The nuclear kinematic and dynamic moments of inertia have been calculated. In this paper, movement of inertia is one of the most significant quantities to characterize the nuclear rotational band. Theoretical equations were put forward for the possible clarification which has been achieved. 

Key word: Rigid,

IMPROVEMENT OF BEARING CAPACITY OF SANDY SOIL BY GROUTING

¹Abolusoro S.A.; ²Gana A.J; ³Adewara Sunday O. & ²Olaitan A.O.

¹Department of Agriculture, Landmark University Omu-Aran, Kwara State

²Department of Civil Engineering, Landmark University Omu-Aran, Kwara State Nigeria

³Department of Economics, Landmark University Omu-Aran, Kwara State

Email: phildebo123@gmail.com; oladewara02@gmail.com

ABSTRACT

This research work is on improvement of bearing capacity of sandy soil by grouting. The sample was collected from Isaac area, Landmark University and subjected to various tests such as Compaction test, California Bearing Ratio (CBR), permeability, natural moisture content, and sieve Analysis Test. In relation to the subject matter, view of some scholars and authors were reviewed and the data collected which are presented and analysis accordingly, Conclusion and recommendation are made at the end of this research. However, the research work is not on itself as it is recommended further studies.

Keyword: improvement, bearing capacity, Sandy Soil, Grouting.

EVALUATION OF MILLING CHARACTERISTICS OF SOME VARIETIES OF PADDY RICE IN COTTAGE INDUSTRIES OF ONDO AND EKITI STATES IN SOUTH WEST NIGERIA

Abiodun A. Okunola*¹, Adeniyi Olayanju¹, Adejoke D. Adewumi¹ and Stephen A. Abolusoro ²

¹Department of Agricultural and Biosystems Engineering, Landmark University, Omu Aran, Nigeria

²Department of Agriculture, Landmark University, P.M.B. 1001, Omu Aran, Nigeria

*Email: okunola.abiodun@lmu.edu.ng

ABSTRACT

This study was carried out to evaluate the milling characteristics of six varieties of paddy that were processed at cottage industries in Ondo and Ekiti states of Nigeria. The result indicated that rice milled at moisture content below 14.5% has higher percentage of breakages that ranged from 21.39 to 24.39%, while those above it were from 8.65 to 10.23%. Grain characteristics were obtained and shpericity was found to varied between 41 to 44% for Faro varieties and 47 to 49% for Igbemo (a local cultivar). The length width ratio of the Faro varieties were higher than Igbemo varieties being 3.0 to 3.26 and 2.6 to 2.69 respectively. The width / thickness in all the varieties was less than 1.43, a vital threshold value above which kernel breakage is less rampant. The data gathered were processed using analysis of variance (ANOVA) and means separated with Duncan multiple range test. Faro 52 exhibits significant differences among all the six varieties in the milled rice yield (MRY); while the head rice yield (HRY) had significant differences in all the Faro varieties. The dockages were not significant in all the Faro Varieties and IgbemoI. Milled rice characteristics is vital for optimal machine design to effect adequate milled rice separation from impurities

Keywords:  Rice variety, grain characteristics, sphericity, milled rice and breakages 

 

ELECTRICAL ENGINEERS’ PERCEPTION OF COMPETENCIES NEEDS OF ELECTRICITY DISTRIBUTION COMPANY STAFF FOR ENHANCING QUALITY POWER SUPPLY IN BENUE STATE

¹Iorbee, Michael Mlahaga; ²Abur, Christopher Terwase & ³Iorvev, Nathaniel Msen

Department of Vocational and Technical Education

Benue State University, Makurdi

Abstract

This study sought the perception of electrical engineers on the competencies needs of electricity distribution companies’ staff for enhancing quality power supply in Benue state. Two research purposes and two research questions guided the study. Descriptive survey design was adopted for the study.The population for the study was 58 Electrical engineers. A structured questionnaire titled Competencies Needs of Electricity Distribution Companies’ Staff (CNEDCS) questionnaire which was index on a 4-point rating scale was used as instrument for data collection. The questionnaire was face validated by three lecturers in the department of electrical engineering, University of Agriculture Makurdi, Benue State. The reliability coefficient of the instrument was through Cronbach alpha reliability technique and was found to be 0.85. The instrument was administered by the researchers through direct contact. The research questions were answered using mean and standard deviation while t-test was used to test the null hypotheses at 0.05 level of significance. Findings from the study shows that electricity distribution companies’ staff need management and technical competencies to a high extent to enhance quality power supply. It was therefore recommended that Electricity distribution companies in Nigeria should endeavour to recruit staff with high technical skills and should engage their staff in staff training programmes.Key words: Engineers’, Perception, Competencies, Enhancing, Power supply

CAUSES, EFFECTS AND REMEDIES TO THE EFFECTS OF ARMATURE REACTION IN D.C MACHINES

Oshin, Ola Austin; Fakorede Ebenezer, Adanikin Ariyo, Joseph Ojotu & Oluwasanmi Alonge

Department of Electrical and Computer Engineering,

Elizade University, IIara-mokin, ondo

Email: austin.oshin@elizadeuniversity.edu.ng

ABSTACT

The effect that the magneto-motive force (mmf) produced from the armature winding or the effect that the magneto-motive force (mmf) produced by the armature current will have on the main field flux produced by the field winding or stator winding is called armature reaction. Armature reaction has two undesirable effects: First, it distorts the main field. Secondly, it reduces the main field flux or both. When the main field is distorted, then there will be a cross magnetizing effect. But when the main field flux is reduced as a result of armature reaction then we have what is known as demagnetizing effect. In general, armature reaction distorts the main field distribution in the air gap periphery.It also leads to demagnetization effect in the machine. Demagnetization effects of armature mmf will reduce the total flux per pole. This reduction is about 1 to 5% from no load to full load. This research work studies the effects of armature reaction in D.C machines. Armature demagnetization and armature cross magnetization of DC machines with different number of poles, conductors, armature current at different electrical angles were obtained. Armature demagnetization and armature cross magnetization of DC machines with different number of poles, conductors, armature current at a particular electrical angle were also obtained. Observations revealed that the effects of armature reaction in DC machines with high number of poles are higher than the armature reaction in D.C machines with lower number of poles. However, the armature cross magnetization increase in D.C Generators when the mechanical angle is less than  and reduces when the mechanical angle is more than 12.  It was established that Armature demagnetization increase as the number of poles increases in D.C Machines. Also, the results show that Armature demagnetization and armature cross magnetization of DC machines increase for a constant mechanical angle.

Keywords: D.C Machines, Armature demagnetization, D.C generators, armature cross magnetization, magneto-motive force, armature reaction, generated E.M.F, terminal voltage