Won Jae Lee

A survey conducted over South Korean adults (N=513) reveals that emotions, specifically anger, contribute to the broader spread of misinformation on COVID-19 by leading angry individuals to consider false claims to be “scientifically credible.” This pattern is more evident among conservatives than liberals. Our finding sheds light on new measures and journalistic interventions that could alleviate the public’s anger and foster science-based conversations during a public health crisis.

( Ba 0.5 Sr 0.5 )TiO 3 (BST) thin films have been prepared on Pt/SiO 2 /Si substrates under various Ar/O 2 plasma conditions by the conventional rf magnetron sputtering method using a ceramic target containing excess BaO and SrO. With increasing deposition temperature, the crystallinity of the BST films abruptly increased and change of the preferred orientation was observed. At 650° C, (100)-preferred orientation was obtained. The increase of the crystallinity of films improved the dielectric co

This article investigates the factors that escalate competition into dangerous conflict. Recent sociological theorizing claims that such escalations are particularly likely in dyads of structurally equivalent people (i.e., actors who have the same relations with the same third parties). Using panel data on Formula One races from 1970 through 2014, we model the probability that two drivers collide on the racetrack (an observable trace of conflict) as a function of their structural equivalence in

Ocular tracking of targets in biological systems involves switching between two strategies: slow pursuit and fast corrective saccades producing pursuit nystagmus. Here, a symmetric (bilateral) controller is used as a model for the oculomotor control system (OCS) to drive two cameras on a robotic head. It relies, as in biology, on internal switching in shared premotor circuits to alternate automatically between the two types of movements comprising nystagmus. The symmetric structural concept is g

The quality of life for people in urban regions can be improved by predicting urban human mobility and adjusting urban planning accordingly. In this study, we compared several possible variables to verify whether a gravity model (a human mobility prediction model borrowed from Newtonian mechanics) worked as well in inner-city regions as it did in intra-city regions. We reviewed the resident population, the number of employees, and the number of SNS posts as variables for generating mass values f

At the very late design stage, engineering change order (ECO) leakage optimization is often performed to swap some cells for the ones with lower leakage, e.g. the cells with higher threshold voltage (Vth) or with longer gate length. It is very effective but time consuming due to iterative nature of swap and timing check with correction. We introduce a graph convolutional network (GCN) for quick ECO leakage optimization. GCN receives a number of input parameters that model the current timing info

The social standing of an artist provides a reliable proxy for the value of the artist's product and reduces uncertainty about the quality of the product. While there are several different types of social standing, we focus on reputation among professional artists within the same genre, as they are best able to identify the artistic value of a product within that genre. To reveal the underlying means of attaining high social standing within the professional group, we examined two quantifiable pr

In this paper, we study the speed synchronization problem for a group of multiple motor systems by considering input saturations. To solve this problem, we propose the distributed PID algorithm based on the consensus technique. In addition, the integral controller may cause the integral windup effect due to input saturations. Therefore, we apply the anti-windup technique to overcome the windup problem. Then, we analyze the stability of the overall error system using an integral-type Lyapunov fun

Power distribution network (PDN) interferes with signal routing, in particular when the network is dense to support low supply voltage (Vdd) or tight IR-drop constraint. We address post-placement PDN synthesis with a goal of minimizing PDN strap width sums while IR-drop constraint is respected. The problem can be formulated as mixed-integer quadratically constrained programming (MIQCP) as we present. But PDN synthesis with MIQCP is not scalable if the network is formulated as a whole. Our soluti