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Unloading a Truck
No full textTwo men unloading a truck into McCrayhttps://digitalcommons.pittstate.edu/mccraybuilding/1038/thumbnail.jp
McCray Tiles - Instruments
No full textPhoto of a tile featured on the wall of McCray lobby. The tile has a stringed instrument- violin or cello- and woodwind instruments on a blue background.https://digitalcommons.pittstate.edu/mccraybuilding/1058/thumbnail.jp
Scanned Negative of McCray
No full textScanned negative of McCray, Russ can be seen in the background. Labelled 3156-40https://digitalcommons.pittstate.edu/mccraybuilding/1074/thumbnail.jp
Students Talking
No full textColor photograph of McCray as seen from the Oval. Student stand and talk outsidehttps://digitalcommons.pittstate.edu/mccraybuilding/1076/thumbnail.jp
McCray - Hallway
No full textNegative photo of one of the practice room hallways in McCrayhttps://digitalcommons.pittstate.edu/mccraybuilding/1110/thumbnail.jp
McCray Postcard
No full textPostcard of the Music Hall, K. S. T. C. (Kansas State Teachers College), Pittsburg, Kansas. Numbered OA3596 in the bottom right hand cornerhttps://digitalcommons.pittstate.edu/mccraybuilding/1122/thumbnail.jp
Bridging Land and Water by Sky Views
No full textFrom an aerial perspective, a winding waterway from top to bottom with farm land to the left and town/development to the right. At the bottom of picture there is a teal green bridge over the water for cars.https://digitalcommons.pittstate.edu/wideopenspace/1017/thumbnail.jp
Castor Oil-based Polyurethane Adhesives: Effect of Cross-Linker on the Bond Strength
Get PDFAdhesives are important for binding diverse materials, promoting structural integrity and functional versatility in countless daily life applications. An enormous obstacle remains in the development of polyurethane (PU) adhesives exhibiting excellent bonding strength. Designing a chain extender with appropriate molecular structures is critical to improving the bonding strength of polyurethane-based adhesives. In this work, polyurethane-based adhesive was prepared using castor-oil-based polyol and diisocyanate. The bonding strength of the adhesive was improved by adding chain extenders such as N, N-bis (2-hydroxyethyl) thiophene-2, 5-dicarboxamide (ETP) and N, N-Bis (2-hydroxyethyl)-terephthalamide (ETAM). The modified adhesive showed high bonding strength after the addition of chain extenders due to the presence of the di-carboxamide group, which served as a center for hydrogen bonding. The bonding strength of PU adhesive increased to 7.22 and 9.68 MPa from 5.0 MPa after the addition of 7.5 wt. % of ETP and 5.0 wt. % of ETAM, respectively. The bonding strength of the adhesives was tested on both wood (oak) and metal (stainless steel) coupons. The bonding strength of 9.68 MPa on oak wood and 6.73 MPa on stainless steel coupon was observed for the 5.0 wt. % of ETAM-based PU adhesive. The bonding failure was observed to be due to wood failure. The reason behind the good bonding is noncovalent bonds which are formed between the functional group of the PU molecular chain and the surface of the substrate. In addition, no major changes in FT-IR after keeping these adhesives in different solvents were observed. Good crosslinking is also confirmed by studying the gelling and swelling data of the adhesives
Exploring the Impact of Generative AI on Higher Education of Indian International Master’s Students
Get PDFThis study explores the impact of generative AI tools on higher education of Indian international master\u27s students. The goal of the research is to investigate how the use of generative AI tools affects the academic performance and skill development of the Indian International Master’s students by using ethnographic qualitative approach, conducting interviews with fifteen participants across distinct majors and academic years. This research is significant because it helps to understand how Indian international master\u27s students who use generative AI tools perform academically and develop new skills. This study provides insights for integration of technology into education, enabling educators, policymakers, and educational institutions to optimize technology use and promote successful learning practices. This study provides relevant aspects for making decisions in the context of current discussions about the integration of AI in education. This research is built on considering assumptions, such as participants representation of the larger community of Indian international master\u27s students, the homogeneity of experiences despite major and academic year differences, and truthful responses throughout the interview process. The study also acknowledges its limitations, including the dynamic nature of technical improvements and the possibility of interpretive biases in subjective opinions acquired during interview. Despite these limitations, the study provides insightful information about how generative AI tools affect Indian international master\u27s students\u27 experiences in higher education. This study contributes to current discussions regarding the effective integration of emerging technologies in academic contexts by offering a comprehensive perspective of technology\u27s impact on education
Development of Circularity-focused Plastics Laboratory Activities at Pittsburg State University
Get PDFModern plastics manufacturing by traditional methods can create a significant amount of waste plastic including sprues, runners, flash, trim, and out-of-spec parts. Transforming waste products into useful parts can significantly reduce the carbon footprint of the plastic industry. Plastics Engineering Technology laboratory activities at PSU generate copious amounts of waste plastic due to required hands-on coursework. This investigation focused specifically on reprocessing ABS waste material from thermoformed scoops generated in Part and Mold Design I. Our objective was to prove the viability of a circular process for ABS waste material by grinding the scrap, injection molding test coupons, extruding new sheets, and thermoforming new parts. This circularity-focused activity will be reproduced within PET processing labs to demonstrate the potential second life for waste material. To demonstrate the quality of reprocessed material, waste ABS was injection-molded into flexural and tensile test coupons to determine mechanical properties. Melt flow testing demonstrated changes in melt rheology. When compared to control ABS, we determined that there was a slight reduction in tensile and impact properties. We do not anticipate that the mechanical property reduction will negatively impact part performance. Subsequently, ABS sheets of varied thicknesses were extruded from ground waste ABS and thermoformed into new thermoformed parts. This lab exercise will demonstrate the ability of incorporating circularity concepts for plastics to reduce the amount of plastic waste generated in our lab activities as well as proving the viability of improved sustainability in manufactured plastic parts when PET students become members of the plastics industry