Arrhenius.jl: A Differentiable Combustion SimulationPackage

Kavli Affiliate: Ronald Hanson | First 5 Authors: Weiqi Ji, Xingyu Su, Bin Pang, Sean Joseph Cassady, Alison M. Ferris | Summary: Combustion kinetic modeling is an integral part of combustion simulation, and extensive studies have been devoted to developing both high fidelity and computationally affordable models. Despite these efforts, modeling combustion kinetics is still […]


Continue.. Arrhenius.jl: A Differentiable Combustion SimulationPackage

Tuning acoustic impedance in load-bearing structures

Kavli Affiliate: Chiara Daraio | First 5 Authors: Sai Sharan Injeti, Paolo Celli, Kaushik Bhattacharya, Chiara Daraio, | Summary: Acoustic transparency is the capability of a medium to transmit mechanical waves to adjacent media, without scattering. This characteristic can be achieved by carefully engineering the acoustic impedance of the medium — a combination of wave […]


Continue.. Tuning acoustic impedance in load-bearing structures

Temporal Evolution of Flow in Pore-Networks: From Homogenization to Instability

Kavli Affiliate: Ariel Amir | First 5 Authors: Ahmad Zareei, Deng Pan, Ariel Amir, , | Summary: We study the dynamics of flow-networks in porous media using a pore-network model. First, we consider a class of erosion dynamics assuming a constitutive law depending on flow rate, local velocities, or shear stress at the walls. We […]


Continue.. Temporal Evolution of Flow in Pore-Networks: From Homogenization to Instability

Phonon Screening of Excitons in Semiconductors: Halide Perovskites and Beyond

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Marina R. Filip, Jonah B. Haber, Jeffrey B. Neaton, , | Summary: The ab initio Bethe-Salpeter equation (BSE) approach, an established method for the study of excitons in materials, is typically solved in a limit where only static screening from electrons is captured. Here, we generalize […]


Continue.. Phonon Screening of Excitons in Semiconductors: Halide Perovskites and Beyond

Large tunability of strain in WO3 single-crystal microresonators controlled by exposure to H2 gas

Kavli Affiliate: Andrea D. Caviglia | First 5 Authors: Nicola Manca, Giordano Mattoni, Marco Pelassa, Warner J. Venstra, Herre S. J. van der Zant | Summary: Strain engineering is one of the most effective approaches to manipulate the physical state of materials, control their electronic properties, and enable crucial functionalities. Because of their rich phase […]


Continue.. Large tunability of strain in WO3 single-crystal microresonators controlled by exposure to H2 gas

Controlling Neural Networks with Rule Representations

Kavli Affiliate: Xiang Zhang | First 5 Authors: Sungyong Seo, Sercan O. Arik, Jinsung Yoon, Xiang Zhang, Kihyuk Sohn | Summary: We propose a novel training method that integrates rules into deep learning, in a way the strengths of the rules are controllable at inference. Deep Neural Networks with Controllable Rule Representations (DeepCTRL) incorporates a […]


Continue.. Controlling Neural Networks with Rule Representations

The origin of chirality induced spin selectivity in photo-induced electron transfer

Kavli Affiliate: David T. Limmer | First 5 Authors: Thomas P. Fay, David T. Limmer, , , | Summary: Here we propose a mechanism by which spin polarization can be generated dynamically in chiral molecular systems undergoing photo-induced electron transfer. The proposed mechanism explains how spin polarization emerges in systems where charge transport is dominated […]


Continue.. The origin of chirality induced spin selectivity in photo-induced electron transfer

Quasiballistic electron transport in cryogenic SiGe HBTs studied using an exact, semi-analytic solution to the Boltzmann equation

Kavli Affiliate: Austin J. Minnich | First 5 Authors: Nachiket R. Naik, Austin J. Minnich, , , | Summary: Silicon-germanium heterojunction bipolar transistors (HBTs) are of interest as low-noise microwave amplifiers due to their competitive noise performance and low cost relative to III-V devices. The fundamental noise performance limits of HBTs are thus of interest, […]


Continue.. Quasiballistic electron transport in cryogenic SiGe HBTs studied using an exact, semi-analytic solution to the Boltzmann equation

Element-specific electronic and structural dynamics using transient X-ray spectroscopy

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Hanzhe Liu, Isabel M. Klein, Jonathan M. Michelsen, Scott K. Cushing, | Summary: Transient X-ray absorption techniques can measure ultrafast dynamics of the elemental edges in a material or multiple layer junction, giving them immense potential for deconvoluting concurrent processes. However, the interpretation of the photoexcited […]


Continue.. Element-specific electronic and structural dynamics using transient X-ray spectroscopy

Attend and select: A segment selective transformer for microblog hashtag generation

Kavli Affiliate: Lihong Wang | First 5 Authors: Qianren Mao, Xi Li, Bang Liu, Shu Guo, Peng Hao | Summary: Hashtag generation aims to generate short and informal topical tags from a microblog post, in which tokens or phrases form the hashtags. These tokens or phrases may originate from primary fragmental textual pieces (e.g., segments) […]


Continue.. Attend and select: A segment selective transformer for microblog hashtag generation