Bimodal Emotion Recognition using Speech and Physiological Changes

With exponentially evolving technology it is no exaggeration to say that any interface fo

A Meta-Analysis of the Effects of Walking Exercise on Depression

OBJECTIVES This study aimed to analyze the effects of a walking exercise intervention on depression. METHODS We conducted searches across several databases, including DBpia, KISS, National Assembly Library, and RISS, using the PICOS framework to extract studies for meta-analysis. Following this procedure, we selected three dissertations and 12 journal articles from the literature, focusing on the effects of depression. The R program (ver.4.3.1) was used for meta-analysis to calculate the effect sizes for depression. RESULTS Outcomes from the random-effects model indicated a substantial effect size for depression, -1.00 (95% CI=-1.35, -0.65), signifying a significant effect (z=-5.56, p=.0001). CONCLUSIONS The walking exercise intervention exhibited a positive effect on depression

A Triple-Mode Flexible E-Skin Sensor Interface for Multi-Purpose Wearable Applications

This study presents a flexible wireless electronic skin (e-skin) sensor system that includes a multi-functional sensor device, a triple-mode reconfigurable readout integrated circuit (ROIC), and a mobile monitoring interface. The e-skin device's multi-functionality is achieved by an interlocked micro-dome array structure that uses a polyvinylidene fluoride and reduced graphene oxide (PVDF/RGO) composite material that is inspired by the structure and functions of the human fingertip. For multi-functional implementation, the proposed triple-mode ROIC is reconfigured to support piezoelectric, piezoresistance, and pyroelectric interfaces through single-type e-skin sensor devices. A flexible system prototype was developed and experimentally verified to provide various wireless wearable sensing functions-including pulse wave, voice, chewing/swallowing, breathing, knee movements, and temperature-while their real-time sensed data are displayed on a smartphone

Determining transfer batch sizes in trip-based material handling systems

Trip-based material handling systems such as AGV systems or lift trucks are often designed with a given flow matrix (or from-to chart), which typically shows the number of loaded trips that the devices must perform per unit time between the workstations. A from-to chart that would result from the parts flow in a facility actually is dictated by the transfer batch size; that is, the number of parts transferred from one workstation to the next in one trip. In this paper, we present analytical and simulation results aimed at determining optimal or nearoptimal transfer batch sizes in manufacturing systems and develop an analytical relationship between the material handling capacity and the expected work in process (WIP) in a manufacturing system. Although the results apply to any discrete-parts flow, trip-based material handling system, they are particularly relevant for the electronics manufacturing industry, where parts (such as printed circuit boards or substrates for flat panel displays) typically are handled as a group (in specially designed containers such as cassettes) and the costs associated with WIP tend to be large. In such applications, the cassette size is the transfer batch size.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45584/1/10696_2004_Article_BF00170017.pd

Spontaneous generation and active manipulation of real-space optical vortex

Optical vortices host the orbital nature of photons, which offers an extra degree of freedom in photonic applications. Unlike vortices in other physical entities, optical vortices require structural singularities, which restrict their abilities in terms of dynamic and interactive characteristics. In this study, we present the spontaneous generation and external magnetic field-induced manipulation of an optical vortex and antivortex. A gradient-thickness optical cavity (GTOC) consisting of an Al/SiO2/Ni/SiO2 multilayer structure realised the distinct transition between the trivial and non-trivial topological phases, depending on the magneto-optic effects of the Ni layer. In the non-trivial topological phase, the mathematical singularities generating the optical vortex and antivortex pair in the reflected light existed in the generalised parameter space of the thicknesses of the top and bottom SiO2 layers, which is bijective to the real space of the GTOC. Coupled with the magnetisation, the optical vortex and antivortex in the GTOC experienced an effective spin-orbit interaction and showed topology-dependent dynamics under external magnetic fields. We expect that field-induced engineering of optical vortices will pave the way for the study of topological photonic interactions and their applications.Comment: 22 pages, 4 figure