More Like this

1. Multi-Density Woodcock Tracking: Efficient and High-Quality Rendering for Multi-Channel Volumes

   https://doi.org/10.2312/pgv.20251150  

   Sahistan, Alper; Zellmann, Stefan; Morrical, Nate; Pascucci, Valerio; Wald, Ingo (January 2025, The Eurographics Association)

   Volume rendering techniques for scientific visualization have increasingly transitioned toward Monte Carlo (MC) methods in recent years due to their flexibility and robustness. However, their application in multi-channel visualization remains underexplored. Traditional compositing-based approaches often employ arbitrary color blending functions, which lack a physical basis and can obscure data interpretation. We introduce multi-density Woodcock tracking, a simple and flexible extension of Woodcock tracking for multi-channel volume rendering that leverages the strengths of Monte Carlo methods to generate high-fidelity visuals. Our method offers a physically grounded solution for inter-channel color blending and eliminates the need for arbitrary blending functions. We also propose a unified blending modality by generalizing Woodcock's distance tracking method, facilitating seamless integration of alternative blending functions from prior works. Through evaluation across diverse datasets, we demonstrate that our approach maintains real-time interactivity while achieving high-quality visuals by accumulating frames over time. Alper Sahistan, Stefan Zellmann, Nate Morrical, Valerio Pascucci, and Ingo Wald 

   more » « less
2. Linguistic characteristics of bimodal bilingual code-blending: Evidence from acceptability judgments

   https://doi.org/10.1017/s1366728925000409  

   Lillo-Martin, Diane; Gagne, Deanna; Avino, Melissa; Bobaljik, Jonathan D; Wurmbrand, Susanne; Quadros, Ronice_Müller de; Keller, Grace (May 2025, Bilingualism: Language and Cognition)

   Abstract Code-blending is the simultaneous expression of utterances using both a sign language and a spoken language. We expect that like code-switching, code-blending is linguistically constrained and thus we investigate two hypothesized constraints using an acceptability judgment task. Participants rated the acceptability of code-blended utterances designed to be consistent or inconsistent with these hypothesized constraints. We find strong support for the proposed constraint that each modality of code-blended utterances contributes content to a single proposition. We also find support for the proposed constraint that – at least for American Sign Language (ASL) and English – code-blended utterances make use of a single derivation which is realized using surface forms in the two languages, rather than two simultaneous derivations, one for each language. While this study was limited to ASL/English code-blending and further investigation is needed, we hope that this novel study will encourage future research comparing linguistic constraints on code-blending and code-switching. 

   more » « less
3. A One-Dimensional Symmetric-Force-Based Blending Method for Atomistic-to-Continuum Coupling

   Gorom-Alexander, Elaine; Li, Xingjie Helen (May 2023, A3N2M: Approximation, Applications, and Analysis of Nonlocal, Nonlinear Models: Proceedings of the 50th John H. Barrett Memorial Lectures)

   Mengesha, Tadele; Salgado, Abner J (Ed.)

   Inspired by the blending method developed by [P. Seleson, S. Beneddine, and S. Prudhome, A Force-Based Coupling Scheme for Peridynamics and Classical Elasticity, (2013)] for the nonlocal-to-local coupling, we create a symmetric and consistent blended force-based atomistic-to-continuum (a/c) scheme for the atomistic chain in one-dimensional space. The conditions for the well-posedness of the underlying model are established by analyzing an optimal blending size and blending type to ensure the H1{\$$}{\$$}H^1{\$$}{\$$}semi-norm stability for the blended force-based operator. We present several numerical experiments to test and confirm the theoretical findings. 

   more » « less
4. 3D printing microporous scaffolds from modular bioinks containing sacrificial, cell-encapsulating microgels

   https://doi.org/10.1039/D3BM00721A  

   Seymour, Alexis J.; Kilian, David; Navarro, Renato S.; Hull, Sarah M.; Heilshorn, Sarah C. (November 2023, Biomaterials Science)

   Blending sacrificial, cell-laden microgels with structural, UV-crosslinkable microgels produces a family of modular bioinks with tunable void fractions that influence cellular morphology while maintaining a depth-independent cell distribution. 

   more » « less
5. Methods of incorporation of new reaction products in thermodynamic databases of cementitious systems

   https://doi.org/10.21809/rilemtechlett.2022.166  

   Zhu, Tongren; Juenger, Maria; Isgor, O. Burkan; Katz, Lynn (July 2022, RILEM Technical Letters)

   Strategic blending of supplementary cementitious materials (SCMs) into ordinary portland cement (OPC) helps reduce energy use and greenhouse gas emissions from concrete production. Expanding thermodynamic databases to include new reaction products from blended cements improves computational approaches used to understand the impact of blending SCMs with cement. Determination of thermodynamic parameters of cement reaction products based on temperature-dependent solubility is widely used in cement research; however, assumptions, limitations, and potential errors due to intercorrelation of the thermodynamic parameters in these calculation methods are rarely discussed. Here, methods for obtaining thermodynamic parameters are critically reviewed, including discussion of experimental validation. The discussion herein provides useful guidance to improve and validate the process of determining thermodynamic parameters of new reaction products from SCM-OPC reactions. 

   more » « less