Category Archives: IJAAR: Volume 9, Issue 5

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DEVELOPMENT OF SMART IRRIGATION SYSTEM BASED ON INTERNET OF THINGS (IoT)

DEVELOPMENT OF SMART IRRIGATION SYSTEM BASED ON INTERNET OF THINGS (IoT)

Chinenye A. Ihendinihu
Department of Electrical Electronic Engineering Technology
Abia State Polytechnic, Aba Nigeria
integralofihendi@gmail.com

Kelechi Inyama
Department of Electrical Electronic Engineering
Abia State University, Uturu Nigeria
kcinyama@gmail.com

Abstract:

The seasonal nature of water resources for agricultural activities has been a problem for increased production especially during the dry seasons. To sustain an all-year round farming system with optimal management of water resources with less human intervention requires the application of modern technology in irrigation systems, which is successfully implemented in a small potato farm in Abia State Polytechnic, Aba Nigeria based on Internet of Things (IoT) technology. The system which uses a circuit combination of soil moisture, temperature/humidity sensors connected to a Microcontroller Arduino Uno with a GSM/Wi-Fi module and an electromagnetic relay switch for energizing a connected water pump. The system operation requires the sensors sensing the soil conditions and transmitting same to the Microcontroller which in turn gives command to the switching relay to ON/OFF the water pump automatically while the generated farm condition data are transmitted to the farmer via the GSM/Wi-Fi module. The real time data as obtained by the sensors can also be viewed in thingspeak cloud in graphical form. The device which is cost effective, easy to operate and maintain has the advantage of making irrigation farming system enjoyable, less burden and increases productivity with lesser manpower management

Key Words: IoT, Smart Irrigation, Farm Automation, Microcontroller, Sensors.

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COMPARATIVE ANALYSIS OF STUDENTS’ PERSONNEL MANAGEMENT PRACTICES OF PRINCIPALS IN PUBLIC AND PRIVATE SECONDARY SCHOOLS IN IMO STATE

COMPARATIVE ANALYSIS OF STUDENTS’ PERSONNEL MANAGEMENT PRACTICES OF PRINCIPALS IN PUBLIC AND PRIVATE SECONDARY SCHOOLS IN IMO STATE

Prof. Patience Egboka & Hyginus Chibuike Ezebuilo
Department of Educational Management and Policy
Faculty of Education,
Nnamdi Azikiwe University, Awka

Abstract

            The study investigated comparative analysis of students’ personnel management practices of principals in public and private secondary schools in Imo State. Two research questions guided the study and two null hypotheses were tested at 0.05 level of significance. Descriptive survey research design was adopted for the study. The population of the study comprised 694 principals of which 296 were from public and 398 from private secondary schools in Imo State, Nigeria. All the 694 principals were used for the study due to relatively manageable size of the population. A researcher-developed questionnaire titled ‘‘Principals’ Students Personnel Management Practices Questionnaire (PSPMPQ)’’ was used for data collection. The instrument was validated by three experts of which two were from the Department of Educational Management and Policy, and one in Measurement and Evaluation Unit in the Department of Educational Foundations, all from Faculty of Education, Nnamdi Azikiwe University, Awka. Cronbach alpha was used for a test of internal consistency of the instrument which yielded reliability coefficients of 0.82 and 0.77 for Clusters 1-II respectively with an overall coefficient of 0.80. Mean and standard deviation were used to answer the research questions, while t-test was used to test the null hypotheses. The findings of the study revealed among others that the public and private secondary school principals adopt similar admission practices and disciplinary practices. Based on the findings, it was recommended among others, that the Ministry of Education should develop a comprehensive policy to guide admission practices to improve uniformity in admission processes of principals in public and private secondary schools.

Keywords: Students, Personnel Management, Practices, Principals, Admission, Discipline

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Development of Agro-Based Particulate Reinforced Epoxy Composites for Helmet Application

Development of Agro-Based Particulate Reinforced Epoxy Composites for Helmet Application

1Adeyanju Benson Bayode, 2Oladele Isiaka Oluwole, 2Adewuyi Benjamin Omotayo, 1Idowu Abimbola Samson, 1Olarotimi Abosede Oluwakemi, 1Oyedokun Opeyemi Victoria, 1John Oluwatayo Ayanleke, 1Adeoya Ebenezer Alaba and Olaore Adeyemi Oluwasegun
1Engineering Materials Development Institute Akure, Ondo State, Nigeria
2Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo State, Nigeria
bayodea2003@gmail.com, +2348060019756

Abstract

This work attempts to make an improvement in the current helmet manufacturing materials and methodology. The composite was developed using epoxy matrix reinforced with cow bone and snail shell particles that were mixed in predetermined proportions. It was aimed at discovering filled epoxy with superior properties using naturally occurring particles from cow bone and snail shell for the production of safety helmet. The cow bone and snail shell were ground separately and sieved using 38 microns sieve sizes. Elemental composition analysis using X-Ray fluorescence (XRF) of both cow bone and snail shell revealed that snail shell has higher percentage composition of calcium compared to cow bone while manganese oxide and chlorine were present in snail shell only. Cow bone and snail shell particulate reinforced epoxy composites were prepared by varying the cow bone and snail shell particles from 5 to 25 wt% with 5 wt% intervals. Mechanical (flexural, tensile, impact and hardness) properties of the developed epoxy composites were evaluated. The results revealed that the mechanical properties exhibited maximum values at specific percentages of filler additions. From the result, hybrid samples within 15-20 wt% reinforcement showed the highest resistance before shattering relative to other samples. Therefore, for applications where impact strength is a major factor, hybrid sample of 15-20 wt% reinforcement can be used in place of pure epoxy. Elemental compositions were discovered to be part of the reasons for the observed responses from the developed composites.

Keywords: Sustainable materials, hybrid composites, cow bone, snail shell, helmet

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KNOWLEDGE AND PRACTICE OF BREAST SELF EXAMINATION AMONG FEMALE SECONDARY SCHOOL STUDENTS IN OWERRI EDUCATION ZONE 2, IMO STATE

KNOWLEDGE AND PRACTICE OF BREAST SELF EXAMINATION AMONG FEMALE SECONDARY SCHOOL STUDENTS IN OWERRI EDUCATION ZONE 2, IMO STATE

Prof. E.J Ibeagha & Lilian Chiemela Oparaocha
Department of Human Kinetics and Health Education
Faculty of Education,
Nnamdi Azikiwe University, Awka

ABSTRACT

A large number of women in Imo State struggling to survive breast cancer pass through secondary school and are probably unaware of this deadly disease. Early detection of breast cancer through breast self-examination from the secondary school level would have prevented the situation of going to hospital lately. This prompted the investigation into knowledge and practice of Breast Self Examination among female secondary school students in Owerri Education Zone 2 of Imo state. Four research questions guided the study and four null hypotheses were tested at 0.05 level of significance. Descriptive survey research design was adopted for the study. The population of the study comprised 5,065 students in public secondary schools in Owerri Education Zone 2 of Imo state. A sample size of 814 students was drawn for the study using stratified random sampling technique. A-researcher developed instruments titled ‘‘Knowledge of Breast Self Examination Scale (KBSES)’’ and Breast Self Examination Practices Questionnaire (BSEPQ) were used for data collection. The instruments were subjected to face and content validation by three experts, two from the Department of Human Kinetic and Health Education, and one from the Department of Educational Foundations, Nnamdi Azikiwe University. Cronbach alpha was used for a test of internal consistency of the instrument and it yielded overall reliability co-efficients of 0.91 for KBSES and 0.86 for BSEPQ. Mean and standard deviation were used to answer the research questions and t-test was used to test the hypotheses. The findings of the study revealed among others that rural and urban female secondary school students possessed low knowledge of circle and lines methods of breast self-examination in Owerri Education Zone 2 of Imo State. It was also observed that circle and lines methods of breast self-examination are rarely practiced among rural and urban female secondary school students in Owerri Education Zone 2 of Imo State. Based on the findings, it was recommended among others that the principals should integrate breast self‑examination methods and practices into orientation programmes of newly admitted female students to enable them acquire early knowledge of procedures of conducting it.

Keywords: Knowledge, Practice, Breast Self Examination, Female Students

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EFFECT OF ACADEMIC STAFF STRIKE ON ACADEMIC ACHIEVEMENT OF STUDENTS IN COLLEGES OF EDUCATION IN ANAMBRA STATE

EFFECT OF ACADEMIC STAFF STRIKE ON ACADEMIC ACHIEVEMENT OF STUDENTS IN COLLEGES OF EDUCATION IN ANAMBRA STATE

1Anene Anthony Nbubueze & 2Prof. Nwakpa Paul

1&2Department of Educational Foundations, Ebonyi State University, Abakaliki, Nigeria.

Abstract

Academic staff strike is one of the constructs that can be used to explain academic achievement of students. Using ex-post-facto research design, this study investigated the effect of academic staff strike on academic achievement of students in colleges of education in Anambra State. The population of the study comprised all the staff (academic and non-academic) and students from the 2 (two) government owned colleges of education in Anambra State. The sample for the study stood at 200 (academic staff), 100 (non-academic staff) and 500 students randomly selected from the 2 institutions given a total of 800 subjects. Three research questions and three null hypotheses guided the study. Data were collected through questionnaire of 30 items to elicit information on impact of academic staff strike on academic achievement of students in colleges of education in Anambra State. The instrument was validated by expert in education. Reliability of the instrument was determined using Cronbach Alpha and alpha coefficient of 0.79 was obtained. Mean and standard deviation were used to answer the research questions while t-test was used for testing the hypotheses at 0.05 level of significance. Result revealed that academic staff strike wheels tremendous influence on the students’ academic achievement. Based on the findings, it was recommended among others that government should give priority to the education sector of the nation, implement to the letter her stipulated document on tertiary education as seen in her National policy on education as well as abide to the last letter all agreement with the academic staff of colleges of education in Anambra State.

Keywords: Academic staff, strike, academic achievement

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ADSORPTIVE REMOVAL OF ERIOCHROME BLACK T (EBT) DYE FROM AQUEOUS SOLUTION USING CANE SUGAR BAGASSE AS BIOADSORBENT

ADSORPTIVE REMOVAL OF ERIOCHROME BLACK T (EBT) DYE FROM AQUEOUS SOLUTION USING CANE SUGAR BAGASSE AS BIOADSORBENT

By

Mohammed, Hussaini1 and Gashua, Ibrahim Babale
Department of science laboratory technology Federal polytechnic, damaturu1.
*Corresponding Author: bgashua@gmail.com
Phone: +2348164313012

ABSTRACT

Textile effluent contains huge quantities of toxic chemicals and high level of chemical oxygen demands, which gets directly discharged into natural water bodies, thus contaminating the water quality. These effluents required prior treatment before being discharged into natural aqueous systems. In the present study, a low cost, highly efficient, eco-friendly adsorbent cane sugar bagasse from an industrial waste raw material will be used for the removal of eriochrome black t from aqueous solution. Parameters that influence the adsorption process such as contact time, initial dye concentration, dosage adsorbent, temperature, ph, activation time and adsorption studies will be studied in batch experiments. The experimental data will be analyzed using adsorption isotherm models freundlich and langmuir. Kinetics study will be carried out to see between pseudo-first order model and pseudo-second order model which is more suitable. The thermodynamic parameters will also be calculated, so that a conclusion will be drawn to ascertain whether cane sugar bagasse is a good adsorbent for the removal of color from textile waste water or not.

Keyword: Erichrome Black T, Cane Sugar, Bagasse, Adsorbent, Isotherm.

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Call for papers

Research Articles written in English Language are invited from interested researchers in the academic community and other establishments for publication. Authors who wish to submit manuscripts should ensure that the manuscripts have not been submitted elsewhere neither is it under consideration in another journal. The articles should be the original work of the authors. High quality theoretical and empirical original research papers, case studies, review papers, literature reviews, book reviews, conceptual framework, analytical and simulation models, technical note from researchers, academicians, professional, practitioners and students from all over the world are welcomed.

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