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A Fundamental Review of Trends in Perovskite Solar Cells Based on Introduction of Buffer Layers to Enhance Stability
(JOURNAL OF SCIENCE TECHNOLOGY AND EDUCATION, 2020) J. Y. Jiya; J. S. Enaburekhan; M. T. Jimoh; E. C. Egwim
Perovskite solar cells (PSCs), as photo-electric conversion devices, exhibit adequate power conversion efficiency (PCE) and low processing cost and have thus become one of the most promising devices to replace conventional silicon-based solar cells thereby addressing current prevailing energy issues. Despite rapid progress in the perovskite solar cell efficiency, there have been concerns about issues which could affect the measurement accuracy and/or practical applications of these devices, amongst which are stability, scaling up (large area devices), and possible environmental effects related to the use of lead-based active material. Current PSCs use nonbiodegradable petroleum-based polymer substrates, discarding of which will aggravate environmental pollution. In this study, a review of the fundamentals and progress in the perovskite solar cell (PSC) is discussed. The processing cost of metal electrode deposition in PSC is very costly, hence, the replacement of the metal electrode by some other low-cost counter electrode is discussed.
Academic Discipline Differences and how it affects the Information Seeking Behavior of Information Users
(Sri Lanka Technological Campus in Collaboration with the department of Library and Information SCience, University of Kelaniya SRi Lanka, the department of library and information science universty of Kerala India, and the National science library and resource centre (NSLRC) of the National Science Foundation (NSF) SRi Lanka, 2021-08-23) Goshie, Rhoda Wusa
This paper is on the academic discipline differences and how it affects the information seeking behavior of information users. It gave the concept of an academic discipline or field of study as a branch of knowledge, taught and researched as part of higher education by the university faculties and learned societies to which they belong and the academic journals in which they publish research. Information- seeking behavior on the other hand is a more specific concept of information behavior. It specifically focuses on searching, finding, and retrieving information. The paper explained the biglan classification scheme. It also highlighted the problem statement such as lack of reading material on this subject on graduate students, especially in Africa. The paper went further to review the researches and related studies on the subject matter and also gave recommendation and conclusions which all emanates from the research
An Overview of Users Information Seeking Behaviour on Online Resources
(International Journal of Organization of Scientific Research Community of Researcher, 2014-02) Esew, Micheal; Makarfi, Aisha; Goshie, Rhoda Wusa; JImada, Aisha
This paper discuses online information seeking behavior of students for sustainable education among students of higher learning institutions. Online information seeking behavior is a relatively new phenomenon. However, it is the active process of obtaining data from the Web. Libraries and Universities are continuously adapting and seeking effective ways to respond to the fundamental and interconnected missions of research, teaching and community service, and that is why some have embraced the use of the Internet in service delivery. On the other hand, this study is more concerned with maximizing usage of this resource by students in fulfilling their primary aim of research and reaching out to these resources on the Internet using the requisite navigational skills. The paper says the Internet offers widespread access to electronic resources and also has the advantages of interactivity, and information tailoring. It also agrees that access is inequitable and use is hindered by navigational challenges due to numerous factors e.g. disorganization, technical language and lack of permanence. Meager information evaluation skills add to students' vulnerability. The paper highlights some information seeking models to assist students in their search for information on the Internet. Also it highlights the role of the library in the information seeking process of students. The paper concludes that though Information and communication technologies are being put in place for use by students, they must possess the requisite skill to use them appropriately.
Analysis of Safety Performance in Nigerian Construction Industry
(Nigeria Journal of Engineering and Applied Sciences (NJEAS), 2018-02-22) Kolo, D. N.,; Tsado, T. Y.,; Abdullahi, M.,; Yakubu, D.M.,; Aguwa, J. I.
The quest for the provision of adequate housing for all has translated to the increase in activities of Building construction industry in Nigeria. This growth is accompanied however with cases of poor safety performancewhich at times leads to structural failure. This study investigates and analyses safety performance in Nigerian construction industry. Investigatory survey research method (work study) was adopted to appraise the aim and objectives of the study through field and questionnaire approach. Questionnaire survey consisting of a five point Likert scale was conducted to solicit information from the respondents, and a total of 120 questionnaires were issued to construction professionals and workers on the sites visited. 92 questionnaires representing 76.67% response rate were retrieved and analysed using Statistical Package for Social Sciences (SPSS) version 21. Communalities test, Principal Component Analysis along with ANOVA were utilised for data analysis. A total of thirty-two (32) factors influencing safety performance were identified from literature, subsequently principal component analysis was utilised to reduce the list to nine (9) significant principal factors. The top nine principal factors influencing safety performance determined from the research are: Relationship between Supervisors and Employees on site, Geographical Location (Environmental Factors: Natural and Working Environment), Working Procedure, Ear defenders not worn (while working under noisy equipment), Talk by Management on Safety, Tidy Site, Safety Communication, Operatives job experience and Ladders used without being tied secured. These factors were further incorporated into a regression model. The adjusted coefficient of determination of the model was 0.98; this shows that the model has the capability of explaining 98% of variability in the data under consideration. This implies that the model is adequate in evaluating safety performance. It is therefore recommended that key industry professionals and stakeholders should channel available resources to the determined nine (9) principal safety performance factors.
Application of ICT in Digital Preservation Strategies in Academic Libraries
(Obafemi Awolowo University, Ile-Ife in Collaboration with Kwara State University, 2015-09-13) Jimada, Aisha; Esew, Micheal; Goshie, Rhoda Wusa; Jimoh, Amina; Abdullahi Mahadi, Bilkisu
Facilitating teaching, learning and research is the major role of academic libraries, to do so effectively libraries rely on documented information resources born either as print or digital. The paper highlighted the various strategies employed by academic libraries in digital preservation of their scholarly publications by the application of the appropriate information and communication technologies. Identified strategies for digital preservation by academic libraries as highlighted by this paper include the followings, investment strategies,short-time and long-time strategies. The study identified the re-use of ICT, especially the software component play a vital role in the digitization and preservation of scholarly publications. The paper went further to highlight the technical know-how and the ICT requirements in the digitization and preservation of scholarly publications which includes among others, identifying the items to be digitized, pulling them into loose sheets and digitize, ICT requirements highlighted includes scanners, digital cameras, use of Abbyyfine reader and uploading the items to Dspace. In conclusion, digitization and preservation of scholarly publications has to deal not only with the maintenance of files but also ways of keeping them accessible bearing in mind the current trends in technology
Application of Information Technology in Knowledge Management: A Global Perspective
(Ambrose Alli University, Ekpoma, Nigeria., 2021-12) Goshie, Rhoda Wusa; Jimada, Aisha; Abdulkarim, Murjanatu
This paper reviewed the application of Information Technology (IT) in knowledge Management: A global perspective. Information Technology (IT) has become a potent force in transforming social, economic, and political life globally. Without its incorporation into the information age, there is little chance for countries or regions to develop. Knowledge is considered a valuable asset to organizations. Effective knowledge management is an increasing important source of competitive advantage and a key to success of contemporary organizations, bolstering the collective expertise of its employees and partners. This paper establishes the role of IT in sharing, transferring and storing of information. Knowledge is very important especially for document management, storage, search and knowledge sharing to improve organizational effectiveness. Knowledge management without IT is useless for competitive ends. The paper also listed the three (3) categories of knowledge management technology such as groupware software, work flow system and content management system. The paper highlighted the characteristics of knowledge which include; knowledge is personal, knowledge is highly experiential, procedural and propositional. The paper gave the role of IT in knowledge management and information technology tools. The paper gave the implication of the role of IT in knowledge management that before developing an IT strategy, firms must develop a knowledge strategy to provide the basis for the IT strategy, not the other way round. Conclusions and recommendations were also provided
Availability, sufficiency and use of school library resources by students: a case study of Police Secondary School Library, Minna, Niger State, Nigeria
(The Nigerian School Library Association., 2018-10-29) Mohammed Saba Adamu, J. Joel Kolo, Alice Adebisi & Fati Abubakar
This study investigated the availability, sufficiency and use of library resources by secondary school students in Police Secondary School (PSS) Minna Library. The research design adopted for this study was descriptive survey research method. The population of the study consisted of Senior Secondary two (SS2) and Senior Secondary three (SS3). A total of eighty (80) copies of the questionnaire were distributed and seventy-seven (77) were returned and used. The instruments used for data collection were observation checklist containing items on availability of information resources and questionnaire containing items on sufficiency and use of information resources by students; factors militating against the use of information and strategies to enhance use of information resources. Data collected were analysed using frequencies and percentages. Findings showed that computer assisted instructional resources were not available and as such could not be determined whether sufficient or not, only few students make effective use of school library. The study recommended that computer assisted instructional resources should be acquire in the school library to enhance effective use of information resources in the school library.
Data Sharing Perceptions among Chemists in Federal Universities of Technology, Nigeria
(In Emerging Trends and Technologies in LIS Education during COVID-19 Era, Edited by Enang U. U et al., 2021) Abduldayan, F.J
The study examined data sharing perceptions among chemists in federal universities of technology in Nigeria namely: Federal University of Technology Minna, Federal University of Technology, Owerri, Federal University of Technology Akure, Modibo Adama University of Technology Yola and Abubakar Tafawa Balewa University Bauchi. Data sharing ensures that research data remain findable and usable for a long time within the scientific community. An explanatory research design was adopted to understand the perception of chemists on data sharing. An interview schedule was used to gather data from the respondents and thematic analysis was done using the Provalis Qualitative Data Analysis (QDA) software. The total population of the study was 40 respondents and the sampling technique used was the total enumeration method. Findings revealed that chemists are willing to share research data provided there are effective copyright systems in place. They are also willing to share analysed data after publication. The study recommended that the library should intensify advocacy on the benefits of data sharing which could also serve as a preservation method and as a sustainable means of collaboration within the scientific community.
Demographic Characteristics, Awareness, and Utilization Patterns of Public Libraries in Nigeria: Implications for Promoting Access to Knowledge and User Engagement in Nigeria
(Journal of Information Resource Management, 2023) Attah, T. A; Usman, A. A; Abduldayan, F.J.
This study is on public libraries’ roles in helping achieve the United Nations Sustainable Development Goal (SDG) on Poverty Eradication in Nigeria. Poverty has long been a challenge that has faced humanity as many struggle to make ends meet and get a decent living for themselves. We live in an ‘Information Age’ where people equipped with the right information are able to make better decisions and better their lives. Public libraries exist as an information household that can provide people with the right information to better their status and quality of life as a whole. This study identified the demographic characteristics of public library users in Nigeria, investigated the level of awareness of public libraries, the frequency of use of the library, identified the reasons for visiting public libraries, the types of resources and services that users consult, and finally, suggested strategies that could be employed by public libraries in achieving the SDG goals on poverty eradication in Nigeria. A survey was carried out using online Google Forms as the data collection instrument. Questions were generated in line with the research objectives and a link to the form was shared on social media with 238 young adult Nigerians from 25 selected states across the six geopolitical zones in Nigeria. Findings revealed that 54.9% of male students that fall within the age range of 15-25 years from tertiary institutions form the highest number of public library users in Nigeria. Despite half of the respondents being aware of public libraries, the majority do not visit, with only a small percentage visiting on a daily basis. Borrowing books and other information materials as well as studying are the main reasons for visiting public libraries in Nigeria. The study recommended the importance of increasing awareness of public libraries, and partnership and collaboration with other libraries and organisations in rolling out programs on poverty eradication for youths.
Development of a Library Circulation System for the Ibrahim Badamasi Babangida Library, Federal University of Technology Minna using Java and MySQL
(Proceedings of the Annual Conference of the Nigerian Library Association, Niger State Chapter, Federal Polytechnic Bida, 2017)
This study is focused on the design and implementation of a monitoring-based library circulation system: a case study of Ibrahim Badamasi Babangida Library (IBBL), Federal University of Technology Minna. It has been observed that library users borrow books and fail to return them thereby leading to loss of such library materials which might be sometimes expensive and almost impossible to replace. There is therefore the need for developing an automated monitoring-based library circulation system that will remind library users of due date for return of books and also award fines as appropriate. The study adopted the system analysis and design method and used Java programming language and MySQL to develop the front-end and back-end of the system respectively. The study recommended that the university library management should encourage the use of the monitoring-based system for improved circulation system and enhanced service delivery.
Development of a Test Rig for the Determination of Headloss and Friction Factor of Polyvinyl Chloride (PVC) Pipes
(Journal of Energy Technologies and Policy, 2016) N. A. Musa; J. Y. Jiya; T. K. Aderoju
This paper reports the design, construction and performance evaluation of a test rig for determining the head loss and friction factor of PVC pipes of different diameters (13mm, 19mm and 25mm) transporting water. On performance evaluation, friction factors of 0.0121, 0.0396 , 0.0171 and head losses of 37.8mm, 25.2mm and 12.6mm for 13mm, 19mm, and 25mm diameter PVC pipes respectively were obtained. Keywords: Head loss, friction factor, PVC pipes, test rig, water
Digital preservation Strategies in the Federal University Libraries in the North West Nigeria
(Kenya Library and Information Science Consortium (KLISC), 2022-05-25) Jimada, Aisha; Goshie, Rhoda Wusa; Jibril, Attahiru Alhassan
Digital preservation involves those activities that are carried out in libraries to protect their information resources that are born digital or those converted from analogue to digital form from loss and deterioration and to ensure long-term access to it despite the current changes in technology. This paper investigates the types of information resources digitized, the strategies used by the federal university libraries in North West Nigeria to preserve them so that they will remain accessible for use and reuse and the challenges facing it .Continuous access to digital information remain difficult even after they are preserved. A qualitative research method was adopted for the study; a purposive sampling technique was adopted and a structured interview was the instrument used to collect data for the study. The responses from the respondents were analyzed descriptively using tables. The result of the findings showed that theses, dissertations, preprint and post print journals are the common information resources digitise and preserved while refreshing and technology preservation are some of the strategies use , external hard drive is the storage media use . Erratic power is one of the challenges facing digital preservation. Based on the findings, the study concluded that digital preservation of information resources is carried out in the digitization unit of the libraries studied. Digitised resources are preserved in external hard discs, servers and most importantly in Institutional repositories. The paper recommended among others sensitization of Academic staff on the importance of uploading; normalization strategy should be adopted, proper maintenance of storage media should be adopted, use of cloud storage and adequate fund should be provided and policy should be developed
Effect of Aggregate Washing on Compressive Strength of Concrete produced Using Bida Natural Stone
(Proceedings of the 2nd International Civil Engineering Conference, Department of Civil Engineering, Federal University of Technology Minna, Nigeria., 2020-02-01) Kolo, D. N.; Aguwa, J. I.; Tsado, T. Y.; Alhaji, B.; Joseph, O. F.
Concrete is the most widely used construction material in the world, second to water as the most utilised substance on earth. Coarse aggregate is an essential component in concrete production; it has effect on the workability and mechanical properties of concrete. Bida Natural Stone (BNS) which is the by-product of Precambrian deposits of Bida trough was used as coarse aggregate, utilising unwashed and washed aggregates. A total of 80 concrete cubes of 150 × 150 × 150 mm were cast and used for this study, compressive strength tests were conducted after 28 days curing. The result of physical properties test conducted proved that BNS is suitable for concrete production. The result of compressive strength tests conducted shows that concrete produced using washed aggregate results in an increase in average compressive strength of about 11.46 % when compared to that produced using unwashed aggregate. Hence, construction professionals and workers utilising this aggregate (BNS) in the Bida basin are encouraged to practice aggregate washing before concrete works.
Effect of Cutting Speed and Feed Rate on Tool Wear Rate and Surface Roughness in Lathe Turning Process
(International Journal of Engineering Trends and Technology (IJETT), 2015) O. A. Olugboji; M. S. Abolarin; J. Y. Jiya; S. O. Popoola; C. K. Ajani
Machining is a vital part of the production process in the manufacturing industries. Turing operation was carried out on the mild steel to produce shaft of various diameters. The conditions applied during the turning operation include varying the cutting speed and feed rate while keeping other cutting variables like depth of cut constant. The results affirms that an increase in the cutting speed causes a decrease in the tool life, increase in the feed rate also affects the surface finish obtained.
Effect of Steel Fibre Reinforcement on the compressive strength of Natural Aggregate Concrete
(Proceedings of the Nigerian Society of Engineers 2023 National Engineering Conference, Exhibition and Annual General Meeting, 2023-01-03) Malachi, G.; Kolo, D. N.; Abbass, B. A.
EFFECTS OF OXIDIZED SUCROSE CROSS-LINKED CASSAVA STARCH FILM ON THE PHOTOVOLTAIC PROPERTIES OF PEROVSKITE SOLAR CELLS
(The Nigerian Institution of Mechanical Engineers (A Division of Nigerian Society of Engineers), 2021-09) J. Y. Jiya; J. S. Enaburekhan; M. T. Jimoh; E. C. Egwim; I. A. Joseph
Despite rapid progress in the perovskite solar cell efficiency, there have been concerns about issues which could affect the measurement accuracy and/or practical applications of these devices, amongst which are stability, scaling up (large area devices), and possible environmental effects related to the use of lead-based active material. Based on the findings from previous studies, an optimized biodegradable oxidized sucrose cross-linked cassava starch film layer with zirconium oxide is introduced as a desiccant and buffer against damp heat and thermal recycling. This modified photovoltaic device is capable of resisting ingress of moisture at elevated temperatures, withstanding temperature cycling without delamination, and as such, enables efficient and stable operation. The layers in the PSC were modified by replacing the conventional metallic counter electrode with a low-cost carbon counter electrode. The PSC device with the control architecture underwent a more rapid degradation, particularly within the first 288 hours though with a higher PCE than the modified device. However, in contrast, the PSC device with the buffer layer only degraded a small amount. The best device maintained 95% of its initial efficiency after exposure for 550 hours.
Effects of Reprography and Use of Electronic Resources on Book Buying by Students of Tertiary Institutions in Niger State
(Journal of Applied Information Science and Technology, 2017) Alhassan, J.A; Yusuf, H.; Abduldayan, F.J.; Akor, P.U.
This study examined effects of reprography and use of e-resources on book buying by students in selected tertiary institutions in Niger state. The objectives of the study were to determine: the rate of other means of reproducing work on book trade, the benefits of using e-resources, challenges of book trade in Niger state and to find out the rate of using e-resources by the students of tertiary institutions in Niger state. Descriptive survey was used for the study in three selected tertiary institutions in Niger state, these were Federal University of Technology (FUT) Minna, Federal Polytechnic, Bida and Federal College of Education, Kontagora. The population of the study consisted of students of the institutions which was 23,061. 300 respondents were sampled using Simple random technique, that is, 100 respondents from each institution. Structured questionnaires were used to gather data while data collected was analyzed using frequency count and simple percentages. Findings revealed that the respondents photocopy book materials and also make use of electronic resources when searching for information, but that majority of the respondents do not buy books. The study recommends that students should cultivate the culture of buying books, rather than photocopying so as to uphold both the standard and professional excellence in higher institutions. The study recommended that electronic information resources should be made available and students should effectively utilize the needed.
Environmental Effects of Road Construction Waste
(. USEP: Journal of Research Information in Civil Engineering, 2023-02-12) Kolo, S. S.; Abdulrahman, H. S.; Kolo, D. N.; Shehu, M.; Adamu, H. N.,; Eze, F. E.
This research work investigates the various waste streams generated during road construction and their effect on environment. The method employed in this research work is categorized into waste type generated on construction site using reconnaissance surveys, data collection and data analysis methods. Four construction project sites in Minna, Nigeria, were used with the aim that these sites will provide a platform to acquire valuable data. It was discovered that mortar or concrete waste and wood waste has the highest percentage of 22% to 39% and asphalt has about 4 % waste and this was largest percentage of waste generated and this was mainly due to the human error, the use of inadequately trained and unskilled labour. The study however made case for adequate attention and concentration towards improving effective waste management by implementing proper waste management and disposal systems and encouraging the use of recycled materials in road construction. This will greatly reduce the cost of construction, increase efficiency, reduce work time and replenish the earths rapidly depleting natural resources used in construction like wood and bitumen.
Funding as Correlates of Library Service Delivery for Students with Special Needs in North Central Nigeria
(Library Philosophy and Practice (e-journal), 2020) Madu, E. C.; Gomna, M. A.; Omame, I. M.; Abduldayan, F.J.
This paper assessed funding as correlates of library service delivery in schools which have students with special needs in North central, Nigeria. The study was guided by three objectives and three corresponding research questions. Survey research design method was adopted for the study. The total population for the study was three hundred and nine (309) secondary school students in the three schools which have students with special needs. A total of two hundred and forty six (246) copies of questionnaire were filled, returned and found usable for the analysis representing 80% response rate. Questionnaire was the instrument used for data collection. Descriptive statistical such as frequency counts and percentages, mean and standard deviation were used to analyse the data. The results from the findings showed that the major sources of funding for special needs schools under study are: Subvention from State Government, NonGovernmental Organisation (NGOs) and Religious Group. In addition, the major services offered by these libraries are circulation services, document delivery services and reference services. The analysis of the findings further revealed that lack of fund to procure library resources is one of the major problems affecting effective service delivery among the libraries under study. Hence, the study recommended among others that the management of special needs schools should look of alternative means of funding for the acquisition of information resources in their libraries to enable them meet the information needs of the users with special needs.
Global Issues in the 21st Century Librarianship: A General Perspective
(Proceedings of the Annual Conference of the Nigerian Library Association, Niger State Chapter, Federal Polytechnic Bida, 2017) Abduldayan, F.J.
Global issue describes any social, economic, political or environmental problem that affects the global community, possibly in a catastrophic way. The major global issues which are interconnected are; economy, transportation, communication, population, shelter, food supply/energy, environmental, health and natural resources.