93887 research outputs found
Sort by
The Computational Eye. Deconstructing Style in Digital Art History
Get PDFWith the aim of grounding digital methods in the art historic tradition, this paper uses the discussions around style as a springboard to ask how digital art history can extend beyond providing quantitative confirmation of known trends to enrich our current understanding of visual cultures. Drawing from the examples throughout this issue, we explore how an analysis of computational ways of seeing—or the ‘computational eye’—can expose the underlying preoccupations and priorities of our own research.
Afin de mieux ancrer les méthodes numériques dans la tradition de l’histoire de l’art, cet article se sert des discussions récentes autour du concept de style comme tremplin pour se demander comment l’histoire de l’art numérique peut dépasser la confirmation quantitative de tendances connues et enrichir notre compréhension des cultures visuelles. En nous appuyant sur les exemples présentés dans ce numéro, nous explorons comment une analyse des manières numériques de voir—ce que nous appelons « l’oeil computationnel »—peut mettre en lumière les préoccupations et les priorités sous-jacentes de nos recherches
Beyond The Bench: Redefining Research Impact in Society
Get PDFThe following essay reports on the reflective experiences of the author’s time completing a certificate program “Advancing Graduate Research Impact in Society” offered by Purdue University’s Office of Community Engagement in Fall 2023. It begins by narrating the author\u27s journey as a Muslim woman in STEM spaces, highlighting the lack of relatable role models and the ensuing dissonance between aspirations and prevailing narratives. Through introspection, the essay progresses to examine the paradox of publicly funded but inaccessible science, which often fails to engage with community needs and priorities. The essay underscores the importance of inclusivity and diverse representation in scientific narratives. It argues for a shift towards community-engaged learning (CEL) in biology education, emphasizing the transformative potential of integrating classroom learning with real-world applications and community partnerships. Central to the essay is the advocacy for Culturally Responsive Pedagogy (CRP) as a tool for fostering inclusivity and collaboration in science education. By prioritizing students\u27 cultural backgrounds and experiences, CRP creates inclusive learning environments that celebrate diversity and empower students to approach scientific inquiry with critical awareness. Furthermore, the essay reflects on the broader implications of research impact, urging scholars to critically examine the societal relevance and accessibility of their work. Through the So What, Who, How, and Why framework, the author navigates the complexities of translating research into meaningful engagement, recognizing the importance of understanding, accessibility, and personal motivation in driving impactful change. By centering community needs and embracing diversity, the essay calls for a redefinition of research impact that seeks to empower the learning and production of not only competent biologists but civic-minded scientists
The mechanism by which thermal coupling leads to an asymptotic maldistribution stability boundary for flow boiling in parallel microchannels
No full textPhase change heat transfer processes are attractive for the efficient thermal management of advanced semiconductor devices, with flow boiling in parallel microchannel heat sinks being one promising solution. However, there are several implementation challenges associated with two-phase flow in parallel microchannels, particularly flow maldistribution, which can adversely affect performance and reliability. Two-phase flow models can be useful in predicting and understanding the instability mechanisms that leads to maldistribution, such that parametric performance trends and safe regions of operation can be identified. Channel-to-channel thermal coupling has been shown to alleviate maldistribution, but it is not yet understood why this effect is limited to some critical lateral thermal conductance above which there is no further benefit. In the current work, a two-phase flow model with a lumped thermal capacitance representation of the heat sink wall is developed to identify the mechanism for this asymptotic maldistribution stability boundary for thermally coupled microchannels. The lumped model allows the nature of stability boundary to be explained via a scaling analysis of the eigenvalues. In such systems, it is identified that a single eigenvalue determines the occurrence of flow maldistribution. Scaling analysis shows that, for small values of thermal conductance, this eigenvalue becomes a quadratic function of thermal coupling, which enhances the stability of microchannels and moves the stability boundary. However, for large values of thermal conductance, the eigenvalue is dependent only on the fluid properties, leading to a limit at which thermal coupling can no further improve stability or affect the stability boundary. The lumped model developed in this work enables mechanistic understanding of the role of channel-to-channel thermal coupling on mitigating flow maldistribution and therefore may offer important guidance on the design of flow boiling systems and heat sinks
