Welcome to SOAR: Shocker Open Access Repository!
SOAR is the institutional repository of Wichita State University. Its primary purpose is to make the University’s digital scholarship available to a global audience and to serve as a reliable digital storage solution. SOAR functions dually as both a publication platform and a digital archive. University faculty and staff are encouraged to publish their research works, data, or documents in SOAR. For student submissions, a recommendation from their professors is required.
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- ISSN: 2997-3686
- Contact us: soar@wichita.edu
Recent Submissions
Item Superhydrophobic-based corrosion mitigation systems and their effectiveness on dissimilar and similar friction stir spot-weld joint aerospace alloys(Elsevier B.V., 2024-10)Traditional rivets have been a longstanding choice for securing aircraft components as permanent fasteners. A new technique called friction stir spot welding (FSSW) is gaining popularity as a rivet replacement. Despite its advantages, dissimilar FSSW joints are susceptible to corrosion, which can lead to property degradation. This study explored the potential of superhydrophobic (SH) coating as a corrosion inhibitor for FSSW joint aerospace alloys, particularly aluminum alloy (AA). The study involved a comparison of the corrosion resistance between SH-coated dissimilar (AA2024-T3 and AA7075-T6) and similar (AA2024-T3 and AA2024-T3) FSSW joint specimens. Notably, SH-coated dissimilar FSSW joint specimens demonstrated an exceptional average water contact angle (WCA) of 156°, confirming their SH nature. The study further incorporated the design of experiments (DOE) and statistical analysis to optimize constituent parameters and enhance the performance of SH coating. Durability testing indicated that SH-coated dissimilar FSSW joint specimens exhibited high resistance to acetone without influencing the WCA of 148°. Only a slight decrease in the WCA was observed when specimens were submerged in an acidic solution, where the WCA reduced to 142° from the original WCA of 158°. Also, specimens were stable and maintained the WCA of 154° when heat-treated at the temperature of 230 ℃. Moreover, a cross-cut adhesion test revealed that less than 5 % of the coating material was lost in SH-coated dissimilar FSSW joint specimens. Additionally, the electrochemical study evaluated the anti-corrosion performance of SH-coated dissimilar FSSW joint specimens, where the specimens were immersed for 6 days in 3.5 wt% NaCl solution. After 6 days in 3.5 wt% NaCl solution, specimens remained very close to SH, maintaining the WCA above 140°. Also, the electrochemical results demonstrated that the anti-corrosion performance of the SH-coated dissimilar FSSW joint specimens was enhanced with a lower corrosion rate of 37.56 mpy and current density of 0.428 µA/cm² as compared to the uncoated specimens. The variations in corrosion rates and current densities of the SH-coated dissimilar and similar FSSW joint specimens were very minimal, which proves that the application of SH coating on the FSSW joint specimens is suitable to alleviate corrosion-related problems in FSSW joints. © 2024Item Implementation of next-gen IoT to facilitate strategic inventory management system and achieve logistics excellence(Institute of Electrical and Electronics Engineers Inc., 2024-09-05)Efficiency depends on supply chain management (SCM), which focuses on inventory management to save costs. This study highlights the Internet of Things (IoT) as a transformational force while examining the fundamentals of inventory management and the use of Industry 4.0. The purpose of the study is to talk about how IoT can help achieve logistics excellence and make inventory management easier. Among the goals are assessing RFID and next-generation IoT technologies, outlining how IoT affects inventory control in various industries, and investigating IoT-based methods for efficient logistics. Traditional inventory models like Economic Order Quantity (EOQ) and Economic Production Quantity (EPQ) address significant research problems. Industry 4.0-driven next-generation IoT improves supply chain flexibility, accuracy, and resource efficiency. IoT-essential RFID technology facilitates real-time data transmission, lowers losses, and enhances inventory mobility. It is critical to address obstacles to IoT implementation, such as illegal activity and regulatory constraints. The study looks at how the logistics industry is changing in terms of digitization, cloud computing, and drones' potential to set new trends. The study emphasizes how the Internet of Things is revolutionizing logistics and inventory control. IoT has the potential to be a major force behind logistics excellence in the future due to its cost-effectiveness, agility, and sustainability, despite certain obstacles. The report predicts that as IoT becomes more widely used over the next ten years, logistics will undergo a substantial change. © 2024 IEEE.Item A dual perspective approach for integrating technical and consumer concerns in resilience assessments(Institute of Electrical and Electronics Engineers Inc., 2024-09-11)As the ultimate users and cost-bearers of power systems, consumers experience significant consequences from widespread, long duration power interruptions caused by extreme weather events. Therefore, it is crucial to integrate their perspectives in power system resilience assessments. Yet, existing power system resilience definitions, metrics and assessment frameworks primarily focus on technical perspectives. This work attempts to address the above-mentioned limitation by proposing a dual-focused approach for resilience assessments. We analyze both technical and consumer viewpoints, identify similarities and differences between reliability and resilience, and propose a refined definition of power system resilience that incorporates both perspectives. By modifying conventional distribution system reliability indices, metrics are proposed to assess resilience from both technical and consumers' viewpoints. Capability of ensuring social equity through the utilization of proposed metrics is highlighted. A case study is conducted using past data to illustrate the applicability of proposed metrics. Furthermore, a framework is developed for probabilistic resilience assessments of future power systems, utilizing the proposed dual perspective metrics. © 2024 IEEE.Item Forward Together: A monthly newsletter, September 2024(Wichita State University, 2024-09)Item Episode 25. Badges and microcredentialing at Wichita State: Kim Moore(Wichita State University, 2024-09-19)The “Forward Together” podcast celebrates the vision and mission of Wichita State University. In each episode, President Rick Muma will talk with guests from throughout Shocker Nation to highlight the people and priorities that guide WSU on its road to becoming an essential educational, cultural, and economic driver for Kansas and the greater good.
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