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Simultaneous topology optimization of two hydraulically interconnected porous flow layers in cold plates
No full textCold plate topology optimization is a focus area of research in thermal management, often approached with simplified two-dimensional models to maintain the low computational costs needed for iterative design. However, embracing higher dimensionality in optimization can yield significant performance enhancements, as exemplified by cold plate architectures like manifolded microchannels. In this study, we present a novel 2.5D topology optimization framework tailored to two-flow-layer manifold cold plates, leveraging the homogenization approach to topology optimization. Under this framework, multiple stacked flow layers are simultaneously optimized within a 2D stack while considering local mass and energy exchange between them, enabling the design of intricate 3D flow geometries with the computational efficiency of 2D simulations. The mass and energy exchange between the layers is governed by the optimizable inter-layer flow resistance. This approach is demonstrated for a test case with two coupled flow layers between enclosing solid substrates heated from their external surfaces. The homogenization approach is used to define the local design variables in these layers based on the physical porosity of microstructures (viz., square pin-fins) and the inter-layer coupling within computational cells. A multi-objective cost function, encompassing total pressure drop and thermal resistance, guides the optimization of the microstructure distribution in each layer, resulting in a Pareto front of designs illustrating the balance between these two competing objectives. Full-scale, high-fidelity 3D flow simulations were performed on the topology-optimized two-flow-layer cold plate to validate results from the homogenized 2D simulations. The calculated flow fields showed good agreement between low-cost 2D simulations and high-fidelity 3D simulations, demonstrating the accuracy of the approach. The study provides valuable insights into the topology optimization of multi-layer cold plates, highlighting the potential for enhanced performance via higher dimensionality, as well as manufacturability through the homogenization approach
Individuals’ Experiences of Care Partner Involvement in Heart Disease Management: A Pilot Study
No full textIntroduction: Heart disease impacts both those diagnosed and their families, often due to lifestyle modifications that can alter family dynamics. While existing literature focuses on men and married individuals, understanding care partner involvement for both men and women independent of marital status is important, given gender disparities in heart disease experiences, caregiving roles, and widowhood rates. We explored differences in characteristics of men and women with heart disease, with and without a care partner. Additionally, we explored involvement of care partner beyond spousal relationships. We further examined gender differences in these experiences. Method: Cross-sectional Prolific survey pilot data of persons with heart disease (N=186) were analyzed. We used Chi-square tests and t-tests to test participant characteristic differences by care partner status and care partner involvement differences by gender. Results: Over half of participants reported having a care partner. Those with a care partner were more likely to be married, and more likely to have participated in cardiac rehabilitation, with their participation occurring, on average, two years more recently than those without a care partner. Most primary care partners were spouses and female. Care partners were most often reported to be involved in helping maintain a healthy diet. Discussion: Care partner involvement is prevalent among persons with heart disease, with some gender differences in these experiences. Future research should explore how to best integrate care partners into disease management to benefit both persons with heart disease and their care partners
Steel Joist and Joist Girder Design
No full textThis course starts with the basics of steel joist design, terminology, SJI (Steel Joist Institute) load tables, and special loading conditions, but then will take a closer look at many details on the construction of a joist that you probably haven’t seen before. You will learn what the extra clips and bars are attached to joists and what their purposes are. This will be a picture rich presentation
Downdrag Defeated – the Neutral Plane Method
No full textThe neutral plane method for evaluating downdrag on deep foundations has been gaining popularity over the past few years. It is a powerful tool that, in many situations, can all but eliminate downdrag concerns on deep foundations. INDOT has allowed its use recently and adapted its forms to accommodate this method. The presentation will cover the theory behind the method and how it can be applied in bridge design. We will then demonstrate how to incorporate the method into the INDOT workflow, and we’ll show a couple real-life examples where the neutral plane method saved the day
From Mapping to Mitigation: New Geologic Mapping and Emergency Slope Failure Response along SR 56 in Madison, Indiana
No full textThis presentation will highlight recent geologic mapping efforts done by the Indiana Geological and Water Survey, including detailed bedrock mapping at a finer scale than previously available and updated landslide inventory mapping focused on southeastern Indiana. The second part of the presentation will cover the emergency response to a significant slope failure that occurred along SR 56 in Madison following heavy rainfall in March and April 2025. The reactivation of a known landslide led to a major road failure, creating a public safety hazard and forcing the closure of this heavily traveled route. Due to the critical nature of the road and the excessively long detour, INDOT had to act quickly and creatively, both in managing traffic during the closure and expediting emergency repairs. This presentation will explore how INDOT adapted to evolving site conditions and rapidly advanced the project to contract letting and construction
I Am Mentorship: Hip-Hop as a Mirror for Belonging and Becoming
No full textThis paper presents MENTEE-SS (Mentorship, Engagement, Nurturing, Trust, Empowerment, Excellence-Systems of Support for Students and Families), a practitioner-focused reimagination of Multi-Tiered Systems of Support (MTSS) through the lens of hip-hop pedagogy, mentorship, and culturally sustaining practices. While traditional MTSS frameworks often emphasize compliance and deficit-based intervention, MENTEE-SS situates support in student identity, creativity, and voice.
Grounded in relational trust and arts integration, the framework uses the author’s original song I’M HIM as a case study in identity reclamation. Three tiers bring this vision to life: co-designed classroom rituals (Yo DJ, Spin That Class!, Tier 1), lyric-writing groups for recovery (The Lab, Tier 2), and restorative support circles (The Safe Cypher, Tier 3).
Case studies illustrate how students with learning and emotional disabilities experience belonging, resilience, and academic growth through rhythm, relationship, and radical presence. By weaving research with lived practice, this article invites educators to imagine schools where mentorship is universal, the arts are essential, and every student’s story is featured on the beat.
Keywords: MTSS, hip-hop pedagogy, mentorship, special education, culturally sustaining practice
Keeping it Real: Hip-Hop Based Education in a Mathematics Classroom
No full textHip-Hop based education (HHBE) infuses elements of Hip-Hop culture into teaching and learning. Growing research shows that HHBE engages students, validates students’ identities and lived experiences, and supports academic success. In this article we share how HHBE can be used in mathematics with a focus on teaching word problem solving strategies. Using vignettes and real-life examples, we illustrate how creative elements of Hip-Hop (i.e., breakdancing, graffiti art, DJing, MCing, knowledge of self) naturally enhance mathematics and word-problem solving instruction. Educators can sample/adapt strategies shared to create HHBE lessons to meet the interests of their students with disabilities. We hope that you will feel the vibe
Hip Hop Integration with Transition Planning: Empowering Middle and High School Students for Post-Secondary Success
No full textThis manuscript explores the integration of hip-hop pedagogy into transition planning for urban middle and high school students with disabilities. Grounded in the Individuals with Disabilities Education Act (IDEA) and aligned with Indicator 13, the paper highlights how culturally responsive strategies can amplify student voice, foster goal setting, and enhance post-secondary outcomes. By embedding hip-hop elements such as lyric reflection, storytelling, and motivational music into instruction, educators can increase student engagement across four key transition domains: post-secondary education, employment readiness, independent living, and community involvement. The framework encourages early implementation, personalized supports, and strong school-community partnerships. Practical strategies, including vision boards, mock interviews, and music-based journaling, are provided to help educators empower students in planning for life beyond high school. This culturally affirming approach addresses persistent disparities in post-school success and provides a call to action for educators to reimagine transition planning through a creative and inclusive lens
