Nonverbal cues have multiple roles in social encounters, with gaze behaviour facilitating interactions and conversational flow. In this work, we explore the conversation dynamics in dyadic settings in a free-flow discussion. Using automatic analysis (rather than manual labelling), we investigate how the gaze behaviour of one person is related to how much the other person changes their gaze (frequency in gaze change) and what their gaze target is (direct or avert gaze). Our results show that when one person is looked at they change their gaze direction with a higher frequency compared to when they are not looked at. They also tend to maintain a direct gaze to the other person when they are not looked at.
CCS CONCEPTS• Human-centered computing → HCI theory, concepts and models; • Computing methodologies → Intelligent agents.
Gas turbine uptakes in some FFG‐7 class ships have undergone cracking, a consequence of cyclic thermal stresses that occur during startup and powered operation. Because of this cracking, mainly in duct walls and some stiffeners, NavSea redesigned the FFG‐7 class uptake, and ship designers have improved designs for new ship classes such as DDG‐51 and MCM‐1. These new designs employ insulation schemes and other features to reduce the thermal stresses associated with a gas turbine startup transient. This paper discusses the finite element methodology and thermal transient stress results of analyses on the redesigned FFG‐7 class uptake, and the DDG‐51 class and MCM‐1 class gas turbine uptakes. It briefly describes the applicable ASME Code criteria and follows this discussion with a fatigue life evaluation with regard to crack initiation. Some design features that would mitigate thermal transient stresses due to startup, such as placement of insulation, stiffeners, and thicknesses are presented. A description is given of the dynamic shock analysis methodology used for shock qualification, and the application of computational fracture mechanics to predict the remaining life of the uptake at a location with an initial crack.
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