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Computational investigation of heat generation and dissipation in lithium-ion batteries during multi-rate charging
No full textClick on the DOI link to access this conference paper at the publishers website (may not be free).This study examines how heat affects lithium-ion batteries during their operation through detailed computer modeling. Our research uses computational fluid dynamics (CFD) to track heat flow and battery behavior in a rectangular pouch battery design. The model focuses on changes across the battery's thickness, measuring key factors: how electrical current moves, how heat dissipates, and how lithium ions travel through the battery. We tested the battery under two main conditions. First, keeping it a steady room temperature of 298 K, and second, letting it generate heat naturally during use. For each scenario, we tried three different charging speeds: a standard rate (2C at 18 A/m2), a medium rate (4C at 53 A/m2), and a fast rate (6C at 88 A/m2). Our results show important patterns in battery behavior. When batteries charge and discharge faster, they lose capacity more quickly. This happens both when the temperature stays constant and when the battery heats up during use. Interestingly, when heat builds up, the battery takes longer to complete its charge discharge cycles. This occurs because higher temperatures change how the battery works in two ways: they alter the electrical properties of the battery's electrodes and make it easier for lithium ions to move around inside. To address these challenges, we investigated various cooling methods. Our findings suggest that controlling battery temperature is crucial for maintaining performance, especially during fast charging. These insights help explain why battery sometimes underperform and point to ways we can make them work better through improved cooling systems. This study advances our understanding of why batteries heat up during use and how this affects their performance, offering practical solutions for better battery management
Regional house price cohesion in the UK: recent trends and Covid
No full textThis is an open access article under the CC BY license.Co-movement of house prices across geographical markets (or a lack of such co-movement) has implications for labour mobility and the effectiveness of monetary and other national policies. Previous research on home value co-movement across the UK has yielded mixed findings. In this study we employ a variety of different metrics, and use a sample which includes the covid and post-covid time periods. We find that co-movement has fluctuated greatly over 50 years, but there has not been a clear upward or downward trend in cyclical cohesion over the last five decades. However, there has been a sharp increase in co-movement after the covid pandemic. This reflects a “flattening of the gradient” found in other studies. To the extent that more targeted fiscal transfers to lower-income regions, as well as a relaxation of planning rules for new housing development may encourage greater co-movement, these policies may be worth pursuing. © The Author(s) 2025
Omnisurface: Common reality for intuitive human-robot collaboration
No full textClick on the DOI link to access this article at the publishers website (may not be free).Effective communication and information projection are essential for human-robot teaming. The projection of images on non-planar surfaces using a conventional projector is challenging due to the inherent problem of distortion. The projection distortion occurs due to the variations in depth across the surface of the teaming workspace. As a result, the projected image, information, or symbols lose their original shape and create confusion during human-robot teaming. In this paper, we presented an innovative approach to perform distortion-free projections in the teaming workspace. A pre-warped image is constructed based on the surface geometry that the projector displays and accurately replicates the original projection image. Beyond the technical achievement, this research highlights the social acceptance of improved spatial augmented reality in human-robot teams. It fosters better teamwork, trust, and efficiency by enabling more intuitive and reliable interactions. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025
Mexican media art, ecologies, the posthuman, and politics
No full textClick on the DOI link to access this article at the publishers website (may not be free).This volume focuses on the connection between ecological thought and the technological arts in Mexico in order to challenge assumptions that ecological thought is a domain exclusive to the arts of the Global North and reconceive it as an inventive nexus of materialist speculations into a global posthuman world. Tracking the concept of ecology through a series of case studies taken from the histories of new media arts in Mexico over the last 50 years (from the mid-twentieth century to the present), this book differs from ecological art histories that either ignore technological art or associate it exclusively with the Global North. It includes artists and collectives working both in Mexico and transnationally and examines collaborative projects responding to anthropogenic environmental degradation in Mexico and elsewhere. The book will be of interest to scholars working in art history, Latin American studies, media studies, and environmental studies. © 2025 Claudia Costa Pederson. All rights reserved
Tolkien’s languages: How linguistic relativity effects character agency in the lord of the rings
No full textThesis (M.A.)-- Wichita State University, College of Liberal Arts and Sciences, Dept. of EnglishThis paper aims to explore the presence of linguistic relativity in J.R.R. Tolkien’s The Lord of the Rings. The following discussion engages with the primary text of Tolkien’s famous narrative, while drawing on much of Tolkien’s published contextual material, such as his correspondence, but especially by drawing from his created languages. By exploring these primary sources and placing them in the context of secondary criticism and biography, we can see an intentional inclusion of attributes in Tolkien’s text that exemplified modern understandings of linguistic relativity. These examples can be found in the affect of the High-Elven language of Quenya on the Elves or “Eldar,” such as Galadriel, and also in the increase or decrease of character agency based on monolingual or multilingual status. Tolkien ultimately uses linguistic relativity to encourage the learning of languages in his characters as an example of how broadened perspectives lead to a healthier global community in the face of oppressive tyranny
The Sunflower, v.129, no.24 (April 3, 2025)
No full textArticle(s): Three candidates vie for liberal arts and sciences dean. Since the departure of Fairmount College of Liberal Arts and Sciences Dean Andrew Hippisley in June, the search for a new dean of Wichita State's largest academic college has been narrowed down to three candidates. -- David Eichhorn -- Tamela Eitle -- Sarah Beth Estes -- Provost on DEI-related changes: 'We are currently out of compliance' -- Wichita State aims to reach a research designation that would create new opportunities. It didn't hit the mark this year. Here's why. -- WSU hasn't awarded enough doctorates to attain R1 status this year -- DEI from page 1 -- After post-COVID lull, student organizations are back on the rise -- Severity of mental health cases handled by CARE Team has increased -- SGA learns Tilford Commission no longer exists, revokes funding and passes student fee allocations early -- Men's basketball lands first transfer: Defense-first forward Karon Boyd -- How Wichita State students, faculty helped run college basketball's biggest tournament -- Third men’s basketball player enters transfer portal -- 'Look good, play good': Wichita State track and field jumper starts fashion brand -- Baseball comeback attempt falls short against No. 22 Kansas State -- WSU community garden finally gets the sunlight it deserves -- Letter to the editor: Writing for a better Student Government Association at Wichita State University -- Kansas bill that aims to ban chosen pronouns would place strain on children trying to find themselves in this world -- Shockers Got Talent. Students at Wichita State University showcased their talents at the Student Activities Council's Shockers Got Talent on March 28. -- Scribbles, sketches and signatures: Make your mark in a Shocker Store journal -- Visiting scholar offers WSU students new ways of thinking about art -- Ready, set, fly. Aerospace class tests plane projects before competitionPhotograph(s): Portraits of the three finalists for liberal arts and sciences dean: David Eichhorn, Tamela Eitle, and Sarah Beth Estes. p. 1 -- Monica Lounsbery, senior executive vice president and provost at WSU, speaks about the changes in diversity, equity and inclusion policies on campus. p. 1 -- Wichita State's Innovation Campus. p. 2 -- Graph: Change in number of student organizations over 10 years. Data collected by The Sunflower and provided by Student Engagement and Belonging. p. 3 -- Executives of student organizations work together to build a tower out of spaghetti, marshmallows, tape and string at an event in September. p. 3 -- Chart: How Wichita State's student organizations compare. p. 3 -- Inside of INTRUST Bank Arena before the start of the Texas Tech vs. Drake game on March 22. p. 4 -- Mike Ross and Brad Pittman stand together at midcourt of INTRUST Bank Arena. p. 4 -- Corey Washington faces off with a Memphis defender at the top of the 3-point arc on March 14. p. 4 -- Volunteers at the 2025 March Madness Wichita Regional help set up before the start of the event. p. 4 -- WSU track and field jumper Kielon McQuarters. p. 5 -- Kaleb Duncan slaps the outfield wall in frustration after a home run. The Shockers fell to Kansas State, 13-10. p. 5 -- Portrait of opinion editor Piper Pinnetti. p. 6 -- An onion bulb thrives despite breaching the soil surface. Various materials are mixed in the soil including leaves, mulch and pine cones for optimal nutrients. p. 6 -- Romaine lettuce sprouts next to the Rhatigan Student Center in the community garden plant beds on April 2. p. 6 -- Three trees in the community garden blossom flowers as the April showers begin. p. 6 -- Emma Glover drenches plant beds in the community garden as part of the Shocker Locker's new responsibilities following the move. "Now that the garden is right next to us, this has become sort of like a babysitting gig," Glover said. "I think the idea now is all the vegetables planted in here will help contribute to the Shocker Locker." p. 6 -- Former Sen. Michael Miller speaks to the senate on March 12. p. 6 -- Portrait of Mya Scott, assistant editor. p. 6 -- Illustration of name tag: "Hello my pronouns are ???" p. 6 -- Kodi Baxter performs her original house song "I Never Could Let Anyone In" at Shockers Got Talent. Baxter won first place, leaving the CAC Theater with a $1,000 prize. p. 7 -- Toomaj Amiri, a graduate research assistant at Wichita State University, sings Faramarz Aslani's "Age Ye Rooz." Amiri said he dreams of becoming Iran's next singing star. p. 7 -- Best friends and members of Neighbors with Guitars Hannah Schwemmer and Kennedy Fisher sing and strum to Schemmer's original song, "If You Buy Me Flowers." The performance marked the first time the duo has publicly performed the song. p. 7 -- Taylor Sims sings "Listen" by Beyoncé at the March 28 Shockers Got Talent show. Sims is from Kansas City and has participated in gospel choirs and used the Student Activities Council event to showcase her solo singing skills. p. 7 -- Kailer Megrail sings Stephen Schwartz's "No Good Deed," as performed in Broadway musical Wicked. p. 7 -- A guitarist with band Skylar and the Strings performs an original song at Shockers Got Talent. Their song "The Person You've Become" was written by lead singer Skylar Isenegger. p. 7 -- Fitzsimmons flips through the pages of the display journal in the basement of the Shocker Store. p. 7 -- Student Darsh Choksi grins with his group's plane after completing a successful test flight on March 29. Students, in groups, were required to build planes and test them for flight as part of professor Jielong "Jacky" Cai's Aerospace Design II class. All of the planes that attempted flight during the Aerospace Design II test flight session were able to successfully take off. p. 8 -- Julia Buie, an aerospace engineering student, makes modifications to her plane's wiring ahead of their scheduled test flight time. Students had to connect their planes, made for the Aerospace Design II class, to a controller to practice a controlled flight as part of their final project. p. 8 -- Aerospace engineering student and undergraduate lab assistant Aiden Holt holds up a hand heart after her team's successfully achieved liftoff. p. 8 -- Laura Paige Nobles gasps after a team's plane crashes into the concrete wall of the Heskett Center. The plane was left in pieces after veering off course and colliding into the gym's far wall. p. 8 -- Jordan Glover makes modifications to his plane's left wing ahead of his group's practice flight on Saturday, March 29. Students were able to test their planes ahead of the next flight test session, which will be held on Saturday, April 12. Students in the class are required to build a plane and test it over three different flight test days before submitting their planes for a final flight in the Bronze Propeller competition, held on May 3. p. 8 -- Team 4 members Anubhav Pant, Pedro Cupertino and Yuto Minami carry their Aerospace Design II plane to the testing area during the practice flight session on March 29. p. 8 -- Team 10 members Caleb McDaniel and Marion Jackson adjust their plane's wiring with the help of professor Jielong "Jacky" Cai. The group's plane successfully achieved take off and flew on March 29. p.
Boiling heat transfer enhancement of submerged water jet impingement on wick structures
No full textClick on the DOI link to access this article at the publishers website (may not be free).In this study, the boiling heat transfer characteristics of a submerged water jet impingement on a plain surface, a monolayer wick, and a columnar post wick were experimentally investigated. The effects of Reynolds numbers of 0, 846, 1270, and 1693 on the critical heat flux (CHF) were evaluated for the three different impinged surfaces. The wicks were fabricated using a multi-step sintering process with 200 μm copper particles, and boiling experiments were conducted using water at ambient pressure. The results show significant increases in CHF when monolayer and columnar post wicks were used in the boiling setup. This improvement is attributed to the reduced hydrodynamic instability wavelength, which decreased vapor generation and delayed surface dry-out. CHF enhancements were further amplified by employing an impinging jet. An important new finding in this study is that when the impinging jet is injected into the porous medium surface where boiling occurs, the CHF increases. Compared with the full boiling experiment, the CHF for the flat surface, single layer wick, and columnar post wick are 323.1%, 244.3%, and 266.6%, respectively. The wick and jet impingement design provides fundamental insights into simultaneous CHF enhancements, offering potential applications in advanced thermal management systems. © 2025 Taylor & Francis Group, LLC
Epistemic and legal normativity: Reasons, guidance, rights, and capacities
No full textThis is an open access article under the CC BY license.This paper address two related topics regarding reasons, rational guidance, and epistemic capacities. First, the paper draws a parallel between the publicity condition on the rule of law and legal normativity, and an internal guidance constraint on genuine epistemic reasons and justification: just as the rule of law requires that laws must be available to the people to whom they apply, genuine epistemic reasons must also be available to the people to whom they apply. The parallel supports a kind of qualified internalism about epistemic reasons, motivated by a “Guidance” constraint on normative reasons. Second, the paper addresses the relation between epistemic rights and epistemic capacities. Lani Watson has recently argued that epistemic rights do not depend on epistemic capacities. In particular, she argues that in order to have a right to know, it’s not necessary that you have a capacity to know. If her view is correct, it poses a threat to the general applicability of Guidance constraints across normative domains. Although I largely agree with Watson’s approach to epistemic rights, I argue that this particular aspect of her view is mistaken: while negative epistemic rights (typically) do not depend on having any particular capacities, positive epistemic rights to know things do depend on a capacity to know those things. © The Author(s) 2025
Department of Dental Hygiene Class of 1997
No full textFirst row (left to right): Denise Koerner, RDH, BHS, Clinical Instructor; Patty Seery, RDH, MHS, Clinic Coordinator; Diane E. Huntley, RDH PhD, Associate Professor; Salme Lavigne, RDH, MS, Associate Professor/Chairperson; Dr. Chris Mar, Supervising Dentist; Denise Maseman, RDH, MS, Assistant Professor; Pamela Bumpurs, RDH, Clincal Educator; Barbara Gonzalez, RDH, MHS, Clinical InstructorSecond row (left to right): Debra Kleinow, Treasurer/Secretary; Ann Foley, President; Azarel Molina, Jr., Vice President; Shari Ratzlaff, Class LiaisonThird row (left to right): Carmen Burciaga, Kemberley Cobb, Linda Cookson Craig, Jeanne DeWild, Monnette Funk, Maria Fernanda GuzmanFourth row (left to right): Nga Ho, Kisskina Holcomb, Vicki Johnston, Cam Le, Sonia Ontiberos, Heather Parrish, Thuy Pham, Huyhai V. Phan, Kimberly Pitts, Toni PulliamFifth row (left to right): Michelle Ravenstien, Wadea Roden, Jennifer Schaar, Michelle Smith, Dorothy A. Stafford, Heather Stallings, Audra Thompson, Mary WilliamsonDigitized by University Libraries' Technical Services Institutional Repository & Digitization group.Personal and non-profit use only