SDG 9 - INDUSTRY, INNOVATION AND INFRASTRUCTURE
UNP isn’t just talking about innovation and infrastructure – they’re building it from the ground up. This University is on a mission to turn SDG 9 into reality, and they’re doing it with style.
Picture this: a campus buzzing with energy-efficient buildings, and water-saving tech. It’s not just about looking good; UNP is walking the walk when it comes to sustainable infrastructure.
Proponents: Dean Alvin Pablico and Eric Galapon
Abstract: the quantum time of arrival (TOA) problem requires the statistics of measured arrival times given only the initial state of a particle. Following the standard framework of quantum theory, the problem translates into finding an appropriate quantum image of the classical arrival time, usually in operator form. In this paper, we consider the problem anew within the phase space formulation of quantum mechanics. The resulting quantum image is a real-valued and time-reversal symmetric function in formal series of ℏ2 with the classical arrival time as the leading term. It is obtained directly from the Moyal bracket relation with the system Hamiltonian and is hence interpreted as a Moyal deformation of the classical TOA. We investigate its properties and discuss how it bypasses the known obstructions to quantization by showing the isomorphism between and the rigged Hilbert space TOA operator constructed in Pablico and Galapon {Eur. Phys. J. Plus 138, 153 (2023)}, which always satisfy the time-energy canonical commutation relation for arbitrary analytic potentials. We then examine TOA problems for a free particle and a quartic oscillator potential as examples.
Proponents: Philip Caesar Flores, Dean Alvin Pablico and Eric Galapon
Abstract: It was shown in Phys. Rev. Lett. 108, 170402 (2012) that quantum tunneling is instantaneous using a time-of-arrival (TOA) operator constructed by Weyl quantization of the classical TOA. However, there are infinitely many possible quantum images of the classical TOA, leaving it unclear if one is uniquely preferred over the others. This raises the question on whether instantaneous tunneling time is simply an artifact of the chosen ordering rule. Here, we demonstrate that tunneling time vanishes for all possible quantum images of the classical arrival time, irrespective of the ordering rule between the position and momentum observables. The result still holds for TOA-operators that are constructed independent of canonical quantization, while still imposing the correct algebra defined by the time-energy canonical commutation relation.
Proponents: Christian David C. Alconcel and Randolf M. Agup
Abstract: This study presents an experimental analysis of water jet dynamics using an improvised jet impact apparatus. The research encompassed the design, construction, and testing of the apparatus to evaluate its performance. Testing involved determining and comparing theoretical and experimental impact forces under various experimental setups. These setups included different masses (70.0 g, 100.0 g, 150.0 g) and target vanes with varied angles of impact (90°, 29.5°, 180°). The target vanes were designed with flat, conical, and hemispherical surfaces. The results indicated that the improvised apparatus achieved an overall percentage error of 17.39% in determining impact forces. Among the configurations, the hemispherical target vane combined with a 100 g mass-produced the most accurate results, with a 7.04% error. The highest percentage error of 31.6% occurred with the flat target vane and a 70 g mass. These findings suggest that while the apparatus can yield precise results under optimal conditions (e.g., hemispherical vane and 100 g mass), it may produce less accurate measurements in other configurations. Despite its limitations, the improvised jet impact apparatus demonstrates utility as a teaching and learning tool for exploring fluid dynamics, particularly the behavior of water jets. It provides an accessible means of demonstrating fundamental concepts, even if not suited for experiments requiring high precision. Overall, the apparatus serves as a valuable resource for introducing students to the principles of jet impact and fluid dynamics.
Keywords: fluid mechanics, fluid dynamics, water jet impact, improvised apparatus, improvisation
Proponents: Amiel Christoper Queddeng and Mary Loreen Cayabyab
Abstract: The study described the weave patterns used in abel products like slippers, face masks, and pouch bags and developed weaving codes in designing these products. The coding theory, an application of number theory and the use of the binary decimal codes, was used and applied to describe and develop the codes of the designs in the Abel Iloko Products in Ilocos Sur. The result guided the researchers in generating weaving codes for the designs of slippers, face masks, pouches, and bags. The study employed descriptive and developmental research designs. It explored the different weave patterns found in the Abel Iloko products. It is developmental because the study aims to generate weaving codes based on the patterns used in the production of Abel Iloko. Moreover, the results provide new research directions and ideas for innovation. Based on the findings, the following are recommended: Instructional medium may be used as a medium of learning for students in Ilocos Sur, where learning could be made more varied, and students get to know their culture and preserve the culture of Abel Iloko products. Researchers may use the results as a basis for future research to develop a warp-weighted loom simulation so that historical weaving processes may be explored and shared to generate new fabrication possibilities.
Keywords: Generate, weaving, code, abel, binary
Proponents: Selrahc Asle S. Acosta, Ed Mark R. Del Castillo, Jayson G. Vivar and Gaylord A. Frando
Abstract: This study explored the innovative use of Recycled Concrete Aggregate (RCA) combined with Super Absorbent Polymers (SAP) as a sustainable alternative to Natural Aggregate (NA) in concrete production. Addressing the traditional limitation of RCA usage to 30% due to water absorption and reduced strength, this research successfully increased the RCA content to 50% using a Two-Stage Mixing Approach (TSMA). Three concrete mixtures were tested: conventional concrete and two mixtures containing 50% RCA and 50% NA, incorporating 0.11% and 0.3% SAP by cement weight. Compressive and flexural strength tests conducted on cylindrical and beam samples after 28 days revealed that the flexural strength of the recycled concrete mixtures was comparable to that of traditional concrete, meeting the standards set by the Department of Public Works and Highways (DPWH). Notably, the mixture with 50% RCA, 50% NA, and 0.3% SAP achieved the highest compressive strength, surpassing the American Concrete Institute (ACI) standard of 17 MPa (2500 PSI). These findings highlighted the potential of TSMA and SAP to enhance the structural performance of RCA-based concrete, making it a viable and sustainable alternative to conventional concrete. This study introduced a novel method for increasing RCA utilization in structural applications, significantly reducing construction waste and promoting environmentally sustainable practices in the construction industry.
Keywords: Recycled Concrete Aggregate, Super Absorbent Polymers, Two-Stage Mixing Approach