Soft sensors have been playing a crucial role in detecting different types of physical stimuli to part or the entire body robot, analogous mechanoreceptors proprioceptors biology. Most currently available soft with compact form factors can detect only single deformation mode at time due limitation combining multiple sensing mechanisms limited space. However, realizing modalities sensor without increasing its original factor is beneficial, because even input stimulus robot may induce...

Soft sensors made of highly deformable materials are one the enabling technologies to various soft robotic systems, such as mobile robots, wearable and grippers. However, major drawbacks compared with traditional their nonlinearity hysteresis in response, which common especially microfluidic sensors. In this research, we propose address above issues by taking advantage deep learning. We implemented a hierarchical recurrent sensing network, type neural network model, calibration for...

Although falls in older people are a major public health problem globally, to date there scarce reports on socioeconomic risk factors for falls. The aim of the present study was investigate epidemiology fall, its associated and relative importance among community-dwelling Korean elderly. Secondary analysis national survey data with 31,684 elderly performed. Eleven (age, gender, household type, marital status, education level, current occupation, past income, wealth, number children,...

Recent advancements of technologies in human-robot interaction (HRI) significantly expanded the applications robots from specialized areas to our daily lives. However, safety is not always guaranteed traditional since they are mostly made rigid materials and structures, which cause serious injuries humans upon physical collisions. In this letter, we propose a soft inflatable module with self-contained tactile sensing for safe HRI applications. The proposed highly stretchable elastomer skin...

To advance the design space of electrically‐driven soft actuators, a flexible, architected robotic actuator is presented for motor‐driven extensional motion. The comprises 3D printed, cylindrical handed shearing auxetic (HSA) structure and deformable, internal rubber bellows shaft. linearly extends upon applying torque from servo motor; shaft stretchable but resistant to torsional deflection, allowing it transmit motor other end HSA. high flexibility HSA enable adaptively extend even when...

This study aimed to compare seven widely used fall risk assessment tools in terms of validity and practicality, provide a guideline for choosing appropriate elderly Koreans. Sixty community-dwelling Korean older women (30 fallers 30 matched non-fallers) were evaluated. Performance measures all compared between the faller non-faller groups through two sample t-tests. Receiver Operating Characteristic curves generated with odds ratios discriminant analysis. Results showed that four had...

The advances in soft robotics have increased the need of sensors various applications involved with physical interactions between humans and robots. In this letter, we propose a multiaxis force sensor made multimaterial elastomer layers embedded microfluidic channels that are sensitive to compression perpendicular channel length. microchannels geometrically divided into multiple segments for detecting forces three axes. When is applied top surface sensor, compressed by multisegmented plates...

Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by rapid accumulation of amyloid β (Aβ) protein in the hippocampus, which impairs synaptic structures and neuronal signal transmission, induces loss, diminishes memory cognitive functions. The present study investigated impact neuregulin 1 (NRG1)-ErbB4 signaling on impairment neural networks underlying hippocampal long-term potentiation (LTP) 5xFAD mice, model AD with greater symptom severity than that TG2576 mice....

In this article, a novel approach to enhance the maneuverability and adaptability of legged robots in challenging environments is proposed. This involves integration soft inflatable sensing skin, which provides additional mobile modes environmental adaptability. The inflated skin's structural properties, such as buoyancy, volumed shape, physical compliance, enable quadruped extend their mobility stable swimming crawling modes. skin also offers protection through cushioning backing effects,...

We introduce a novel in-home hand rehabilitation system for monitoring motions and assessing grip forces of stroke patients. The overall is composed sensing device computer vision system. lightweight cylindrical object easy manipulation, which covered by passive layer called "Smart Skin." Smart Skin fabricated using soft silicone elastomer, contains embedded microchannels partially filled with colored fluid. When the compressed forces, fluid rises fills in top surface display area. Then,...

This work demonstrates a soft airflow sensor that is able to detect the direction and magnitude of airflow, taking advantage additive manufacturing for fast prototyping. The comprised printed conductive ionogel array with four channels embedded in elastomeric film: three individual signals other common ground. film consists two different types highly compliant elastomers maximize deflection artificial hair. design hair was proposed moments at lower end resulting from airflow. A compact...

Fluidized bed machining (FBM) is used for the surface finishing or cleaning of complex 3D machine parts. FBM a process injecting air into chamber to encourage particles fluid-like state. Subsequently, involves rotating specimen at high speed material. However, owing long processing time involved in FBM, there limit its application various industries. In this paper, we propose fluidized chemical mechanical polishing (FB-CMP) process, wherein material removal mechanism (CMP) applied improve...

Falls among older people are a major health concern. This study aims to develop multifactorial fall risk assessment system for using low-cost, markerless Microsoft Kinect. A Kinect-based test battery was designed comprehensively assess factors. follow-up experiment conducted with 102 participants their risks. Participants were divided into high and low groups based on prospective falls over 6-month period. Results showed that the group performed significantly worse battery. The developed...

We propose a lightweight inflatable sensing sleeve for increased adaptability and safety of legged robots. The contains an air chamber that can be actively inflated protecting the host robot from external impacts using cushioning effect. In addition, capacitive touch-sensitive pads are integrated on surface detecting contacts made to sleeve. Therefore, robots acquire tactile information their surroundings maneuverability. This paper presents design fabrication touch pads. Characterization...

In this paper, we examine the tilings of a $2\times n$ "triangular strip" with triangles. These have connections Fibonacci numbers, Pell and other known sequences. We derive several different recurrences, establish some properties these give refined count for (i.e., by number type triangles used) counts.

Falls are prevalent among older people and can lead to serious health problems. We newly developed a novel Kinect-based tailored interactive fall intervention system, which seamlessly integrates multifactorial risk assessment programs prevent falls in people. This preliminary study aimed examine the effectiveness usability of this system for prevention Thirty community-dwelling women participated experiment; they were allocated an group (IG) or control (CG) quasi-randomized trial (15 each)....

Abstract We have successfully fabricated and characterized highly uniform nanopatterned graphene (NPG). Thin anodized aluminum oxide nanomask was prepared by facile self-assembly technique without using polymer buffer layer, which utilized as a direct-contact template for oxygen plasma etch to produce near-periodic, small-neck-width NPG. The NPG exhibits homogeneous mesh structure with an average neck width small ~11 nm. 11-nm creates quantum confinement in NPG, has led record bandgap...

This article describes the design of a soft airflow sensor capable detecting direction and magnitude airflow, taking advantage an additive manufacturing technique for rapid prototyping. The consists artificial hair structure conductive ionogel channels. hair, made by 3-D printing, is designed to maximize moments at base caused airflows applied structure. channels are directly printed on flexible circuit board then embedded in elastomeric layer. A compact readout prepared acquire impedance...

This paper describes a soft three-axis tactile sensor composed of soft-rigid multi-material structure embedded with microfluidic pressure sensitive channels. The contains two types microchannels filled liquid conductor for different sensing purposes: one detecting normal forces and the other shear forces. While are measured by single microchannel, detected microchannel divided into six segments an increased spatial resolution. proposed provides total seven output signals based on direction...

This paper explores the challenges posed by aspect-based sentiment classification (ABSC) within pretrained language models (PLMs), with a particular focus on contextualization and hallucination issues. In order to tackle these challenges, we introduce CARBD-Ko (a Contextually Annotated Review Benchmark Dataset for Aspect-Based Sentiment Classification in Korean), benchmark dataset that incorporates aspects dual-tagged polarities distinguish between aspect-specific aspect-agnostic...

As in-vehicle display viewing environments gain popularity, there is increasing research focused on effectively mitigating motion sickness, which has emerged as a problem due to the media experiences within vehicles. Previous studies sickness induced by visual stimuli have emphasized importance of minimizing disparity between signals received vestibular system and perception reduce sickness. This paper proposes methods alleviate controlling screen brightness angles, with specific emphasis...