Journal of Engineering Research and Reports <p style="text-align: justify;"><strong>Journal of Engineering Research and Reports</strong>&nbsp;<strong>(ISSN: 2582-2926)&nbsp;</strong>aims to publish high-quality papers in all areas&nbsp;of engineering. By not excluding papers based on novelty, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open-access INTERNATIONAL journal.</p> <p style="text-align: justify;">This is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.</p> en-US (Journal of Engineering Research and Reports) (Journal of Engineering Research and Reports) Wed, 10 Aug 2022 10:16:55 +0000 OJS 60 Research on Fuzzy Control System of Intelligent Irrigation Based on Soil Moisture <p>Smart irrigation for sustainable agricultural water supply has been a critical initiative. In this paper, a fuzzy control system is designed to realize intelligent and precise irrigation by combining fuzzy control with traditional feedback control based on the features that soil moisture has significant influence and ease of detection and adjustment in practical irrigation. The opening time of solenoid valve is decided by the control system in real time, and the deviation and deviation rate of change for soil moisture are regarded as input variables. The model of intelligent irrigation fuzzy control system is built and compared with the model of PID control by Simulink for simulation. The results show that the fuzzy control system operates stably and achieves real-time precise irrigation with faster response and stronger robustness. The issue of reduced accuracy in irrigation due to the coupling between human and environmental factors is effectively solved by this design.</p> Xunying Zhang, Yafei Zhao ##submission.copyrightStatement## Thu, 11 Aug 2022 00:00:00 +0000 Redesigned Chuck Table: Deep-grooved Chuck Table for Higher Vacuum Suction of Singulated Package <p>Singulation machine frequently encounters Z-Picker errors and occasionally, worst case of unit scattering which leads on the gross unit rejection and scrappage. As analyzed, shifted units found on the chuck table module upon singulation of strip. Shifted units were induced on the last 3 cut lines when the units were dragged by the blade as the area held by chuck table vacuum suction gets smaller. These shifted units caused misalignment on the next singulation modules to the turn table module and Z-Picker module that resulted to vacuum loss. With the situation at hand, the authors have assessed the current design of the chuck table. The authors have found out that chuck table have shallow-grooved rubber jig pockets that flatten upon suction of units resulted to lesser area for vacuum application. As referenced to the formula F=PA, larger area multiplied by suction pressure results to better force to hold the units, thus redesigned chuck table with deep groove was introduced. The study also pertains to the analysis and validation on the application of deep-grooved rubber jig pockets of chuck table aiming to solve the unit shifting during sawing. Elimination of unit shifting was validated to be effective upon application of the deep-grooved chuck table. The study and validation of redesigned chuck table is essential to avoid unit scattering and unit missing.</p> Allen Jay D. Kumawit, Mariane A. Mendoza ##submission.copyrightStatement## Wed, 10 Aug 2022 00:00:00 +0000 Development of an Intelligent Smart Hub Renewable Generation System (ISHRGS) for both Urban and Rural Centres in Offa, Kwara State <p>Intelligent smart grids combine the generation, storage and consumption of energy systems. The opportunities to generate renewable energy from wind, solar and hydropower are generally higher in rural areas than in cities. The future development of the energy system is based on the planning and management of the distribution grid according to the Smart Hub (SH) component. This study comprehensively reviews the accessibility to the generation of electricity and the accessibility of renewable generation systems in urban and rural centres in Offa. It also examines the potential of an intelligent smart hub renewable generation system (ISHRGS) resources in Offa, Kwara State, that harnesses continuous energy supply and sustainability. Therefore, the historical background of the energy distribution in Offa, which led to this approach, is briefly presented with a comprehensive schematic diagram. Using a typical hypothetical example, modelling different components of SH and using them together to optimize ISHRGS using a genetic algorithm is presented. However, the study compares ISHRGS to different rural development approaches based on the feature of high adaptability to meet the temporal needs efficiently, and the parts reflect the intelligent character of the smart hub concerning electricity demand in the region.</p> Kadiri, Kamoru Oluwatoyin, Adekanye Majeed Jamiu, Adewuyi Olaitan Abdulsalam ##submission.copyrightStatement## Thu, 11 Aug 2022 00:00:00 +0000 Impact of Irrigation Practices on Soil Physicochemical Properties of Josepdam Irrigation Scheme <p>The importance of irrigation practice in food production cannot be over-emphasised, however irrigation practices impact soils and other environmental parameters negatively. This necessitates the need for continuous monitoring of the impacts of irrigation on soils and the general environment. A study was carried out on the Josepdam Irrigation Scheme (JIS) located in Bacita, Ilorin, Nigeria. This study was limited to the impact assessment of irrigation practices on the soil physical and chemical properties. Soil samples were collected from irrigated lands at depths 0-20, 20-80 and 80-120 cm from 8 OLs on JIS using soil auger. During each season of collection, samples were kept in polyethylene bags and transported within 24 hours to the laboratory for analyses. The samples were analysed immediately according to ISRIC-FAO procedures for pH, Cation Exchange Capacity (CEC), Exchangeable Sodium Percent (ESP), Mg<sup>2+</sup>, Ca<sup>2+</sup>, Na<sup>+</sup> and Sodium Adsorption Ratio (SAR). The results indicated that the soil texture was sandy loam and sandy clay loam, In JIS, the pH of 7.2 at inception reduced to 4.6; SAR increased from 0.4 to 2.14 meq<sup>1/2</sup> and CEC increased from 18 to 26 cmolkg<sup>-1</sup>. The impacts of irrigation on the soil was determined. The results of these evaluations were compared with FAO standards and past research results.</p> M. A. Adejumobi, J. O. Ojediran, O. E. Onofua ##submission.copyrightStatement## Fri, 12 Aug 2022 00:00:00 +0000