143 research outputs found
Design, Fabrication and Performance Evaluation of a Domestic Dish Washing Machine
Plate washing is a daily activity across the globe which involves a lot of energy to accomplish manually or mechanically. The objective of this work is to design and fabricate a dish washing machine that is efficient and easy to operate. Stainless steel and mild steel was used for the construction of the machine considering their availability, cost reduction and corrosion resistance. The motor used a power of 0.75hp (559.5 W), voltage of 240V and a speed of rotation of “1200 r.p.m” which was reduced to “100 r.p.m” using a reduction gear of velocity ratio (V.R) “12:1”, the shaft torque being “53.4 N-m”. The plates were washed and rinsed in a separate basin using a liquid detergent and clean water following appropriate measure per cycle. Detailed design drawings of all the machine parts were drawn using AutoCAD. The performance analysis of the machine shows that the number of plates washed and the time taken were 20 plates per minute (1min), 5 plates per minute for the machine and manual operation respectively. The capacity of the machine is 20 plates per minute (1880 per hour). The machine washes plates without breakages.Keywords: Washing machine; motor; transformer; gear, plates; detergen
Relationship between Work Flexibility, Work-from-Home Practices, and Job Satisfaction among Freelancers in Lagos State, Nigeria
This study explores the relationship between work flexibility, work-from-home practices, and job satisfaction among freelancers in Lagos State, Nigeria. Using a descriptive survey design, data were collected from 293 freelancers across various sectors, including graphic design, writing, programming, and consulting. A purposive sampling technique ensured the selection of participants with relevant experiences in flexible work arrangements. Three validated instruments were employed: the Flexible Work Options Questionnaire (FWOQ), the Job Satisfaction Scale (JSS), and the Work from Home Scale, which assessed attitudes toward flexible work practices, job satisfaction levels, and competencies in managing remote work. Statistical analyses, including descriptive statistics and Pearson correlation coefficients, were conducted using SPSS. The findings revealed significant positive correlations between work flexibility and job satisfaction (r = 0.789), as well as between work-from-home practices and job satisfaction (r = 0.831). These results emphasize the vital role of flexible work arrangements in enhancing job satisfaction among freelancers. The study offers original insights into the often-overlooked freelance workforce, indicating that increased flexibility and effective work from home practices can lead to higher job satisfaction and engagement
Socio-Cultural Factors Influencing Choice of Bilateral Tubal Ligation Among Women Attending University of Ilorin Teaching Hospital
The study examined socio-cultural factors influencing choice of bilateral tubal ligation among women attending University of Ilorin Teaching Hospital. Increase in child bearing subject women to reproductive health problem of ruptured uterus, miscarriage and abortion due to unwanted pregnancy which leads to high maternal mortality. A descriptive research design of survey type was used for this study. The population for this study comprised all child bearing age women attending Family Planning Clinic in University of Ilorin Teaching Hospital. Multistage sampling technique was used to select 300 respondents from749 women attending the Family Planning Clinic, University of Ilorin Teaching Hospital. Researchers’ structured questionnaire was used to collect data. The questionnaire was validated by three experts. A correlation co-efficient of r= 0.73 was obtained through test re-test method using Pearson Product Moment Correlation. Questionnaire was administered by the researchers and three (3) trained research assistants. The three null hypotheses were tested using inferential statistics of chi-square at 0.05 alpha level of significance. The results revealed that educational status, psychosocial factors and religious belief have significant influence on the choice of bilateral tubal ligation among women attending family planning clinic, in University of Ilorin Teaching Hospital. Therefore, it was recommended that there should be health education programmes for women through seminars to improve their knowledge on choice of bilateral tubal ligation. Women should be provided with adequate information by health care provider to be guided on psychosocial issue(s) such as fear of surgery and anesthesia complications.
Keywords: Bilateral Tubal Ligation, socio-cultural factors, educational status, psychosocial factors, religious belie
Consequences of Premature Ejaculation on Marriage Sustainability among Married Secondary School Teachers in Ogbomoso Town, Nigeria
Premature ejaculation is associated with a range of negative psychological effects including anxiety, depression and distress in men and their partners. This challenge has led to sexual dissatisfaction, separation and divorce in many relationships in Nigeria. The study examined consequences of premature ejaculation on marriage sustainability among married Secondary School Teachers in Ogbomoso Town, Nigeria. The descriptive research design of the survey method was adopted for this study. Simple random and purposive sampling techniques were used to select 184 married (men) Secondary School Teachers in Ogbomoso Town. Researchers’-designed questionnaire validated by 3 experts drawn from the relevant fields was used for data collection. A reliability co-efficient of r=0.81 was obtained through Split-half method using Pearson Product Moment Correlation (PPMC). Data collection was conducted by the researchers and three trained research assistants. Descriptive statistics of frequency count and percentage was used to analyze research questions answered, using inferential statistics of Chi-square ( 2) to test the two postulated research hypotheses at 0.05 alpha level. The study concluded that premature ejaculation could result to psychological problems and marital discord. Therefore, it was recommended that, men with premature ejaculation are advised not to be overwhelmed with any emotional challenge that occurs as a result of premature ejaculation as this may lead to another health problem. Also men with premature ejaculation should seek medical help for their condition thus preventing separation of couples.
Keywords: premature ejaculation, psychological problems, marital discord
An Investigation of Users’ Acceptance and Satisfaction of E-Banking System as a Panacea towards a Cashless Economy in Nigeria
The benefits of e-banking have been established as being numerous and its success has been argued by many researchers to
depend partly on the quality of the banking services but more especially on customer preferences and satisfaction. Surprisingly,
as numerous as these e-banking benefits are, very long queues could still be seen in many Nigerian banks for the consumption
of the traditional banking services of fund transfer, cash deposits and cash withdrawals. However, to prove the success of e-
banking in Nigeria, users’ acceptance and satisfaction of the system need to be validated. Many research works had been
conducted using the Technology Acceptance Model (TAM), an information system theory that models how users come to
accept and use a technology, to pzredict and explain users’ acceptance of e-banking. TAM poses two theoretical constructs;
perceived usefulness (PU) and perceived ease of use (PEOU) as fundamental determinants of user’s acceptance of an
information system. This research work examines the factors that may influence users’ acceptance and satisfaction of e-
banking in Nigeria by adding the impact of perceived credibility (PC) and trust to the TAM constructs (PU and PEOU) with
four other external variables (convenience, quality of technology, service quality and system accessibility) in extending its
validity on examining user’s acceptance and satisfaction of e-banking system in Nigeria as a panacea towards operating a
cashless economy. The result of the hypothesis testing using Pearson chi square is consistent with previous studies which
showed that there is a significant relationship in the predicted direction on intention to use information system (IS)
The Role of Ethnic Directors in Corporate Social Responsibility: Does Culture matter? The Cultural Trait Theory Perspectives
This paper investigates the effect of cultural differences between ethnic directors on corporate social responsibility (CSR) of Public Liability Companies (PLCs) in Nigeria. Using the cultural trait theory, the study focuses on how the ethnic directors are influenced when making decisions concerning CSR. Adopting multiple regression analysis of data, the study investigates the three major ethnic groups (Yoruba, Igbo and Hausa) and finds cultural differences between the ethnic directors affect the adoption of CSR. Empirical results indicate that ethnic directors (Yoruba, Igbo and Hausa) were positively and significantly related to CSR. The paper contributes to the corporate governance and CSR debate concerning how ethnic directors’ decisions impact on CSR activities, particularly on the directors who are individualistic and collectivists towards CSR
Semantic Text Mining using Domain Ontology
Abstract— Presently in Customer Relationship Management, there is a need to achieve greater customer centricity, and this requires a deeper understanding of customer needs. Also, the volume of textual data generated by the social networking sites in recent times has greatly increased, creating a platform for analysis, towards the much needed customer understanding. One of the issues that evolve from analyzing these texts to retrieve non trivial patterns (text mining) is text representation, which this research is aimed at addressing. In particular, this paper focuses on using domain ontology for text pre-processing in order to improve the quality of the textual corpus being mined. The methodology used in this research is based on developing a domain Ontology for textual pre-processing of the experimental data and sentiment analysis of social media data. In conclusion, the inferences gotten from the research carried out reveal that domain ontology has the ability to improve the results of sentiment analysis. It was also discovered that, due to the nature of social media data, there is need for a deeper level of semantic analysis, to be able to maximize its richness
- …
