The shared e-scooter is a popular and user-convenient mode of transportation, owing to the free-floating manner its service. service has advantage offering pick-up drop-off anywhere, but disadvantage being unavailable at desired time place because it spread across area. To improve level service, relocation strategies for e-scooters are needed, important predict demand their use within given Therefore, this study aimed develop prediction model e-scooters. temporal scope was selected as...

The reliability of soft robotic devices will be the bottleneck that slows their commercialization. In particular, fatigue failure issues are a major concern. Thus, should taken into account from earliest stages development. However, to date, there have been no attempts analyze in systematic manner. When robots employed force transmission applications, is typically dominant issue, since structures constructed with material components; these materials highly nonlinear properties arise due...

Swinging-generating high impact by maximizing the speed of motion-is essential in sports activities. However, designing prosthetic hands suitable for swinging is still a challenge. Herein, this article, we propose swing-dedicated hand that adopts anatomical features humans an efficient swing. Our design, inspired joint arthrokinematics and tendon routing fingers, enables diagonal power "squeeze" grip robust to while increasing reach clubhead. The swing further increased radio/ulnar deviation...

Integrating multiple sensors without increasing the structural complexity and their original form factor is a major concern in robotic applications, particularly tendon-driven systems. This study proposes multiparameter contact force sensor with bend sensing by utilizing an improved Bowden cable design. The proposed consists of end tip elastomer membrane, consisting sheath dual inner wires, remotely separated component. electrical wirings are decoupled from mechanical system. displacement...

In this paper, the force characteristics of rolling contact joint are studied. Design parameters affecting performance considered, and effects tension compression shown by analysis. The is compared to pin modeling, it that capability higher than at a small scale. Finally, explore feasibility using in prosthetics, prototype hand prosthetic developed joints.

Integrating tactile sensors into robotic applications is still a challenge because of sensor interconnection and various form factors. Newly developed magnetic synapse have high sensitivity remote sensing capability, but integration with finger an issue the air-transmitting tubes that need to be connected from remotely located base unit. This study proposes integrated design multijoint inspired by human's joint structure system. The unit joints for usage can easily has hollow channels insert...

Inchworm, a kind of caterpillar, traverses various terrains by moving its center mass (COM) with simple two-anchor crawling locomotion. Because this advantage, many soft locomotion robots were developed to mimic inchworm-like crawling. However, most these inchworm have difficulties in COM the vertical height direction, so face overcoming discrete high terrain, like stairs. In paper, we propose flexible sheet-based robot (Loco-sheet) that employs novel mode made morphing overcome terrains,...

A 200kS/s 10-bit successive approximation (SA) analog-to-digital converter (ADC) with a rail-to-rail input signal is proposed for acquiring biosignals such as EEG and MEG signals. split-capacitor-based digital-to-analog (SC-DAC) used to reduce the power consumption chip area. The SC-DAC's linearity improved by using dummy capacitors small bootstrapped analog switch constant on-resistance, without increasing its time-domain comparator replica circuit clock feed-through noise compensation...

This paper presents the Pixel-aligned Diffusion Model (PIDiffu), a new framework for reconstructing high-fidelity clothed 3D human models from single image. While existing PIFu variants have made significant advances using more complicated 2D and feature extractions, these methods still suffer floating artifacts body part du-plication due to their reliance on point-wise occupancy field estimations. PIDiffu employs diffusion-based strategy line-wise estimation along ray direction, conditioned...

This study has been analyzed the sound performance of noise barriers with respect to configuration front perforated panel geometries and filled absorption materials. Noise barriers' acoustic should be required meet 0.7 NRC value at least. The global absorbing have investigated by changing opening ratio characteristics material using two microphone method. Therefore, It it possible obtain increase specific frequency ranges designing perforate rates materials inside, as well. try find out...

To provide an alternative to conventional large-scale fitness equipment, we previously developed a soft passive wearable device for upper limb resistance exercises that utilized elastic exercise bands. However, the user was required manually adjust level of strength. In this paper, introduce novel constitutes cable-driven actuation control profiles. Our proposed allows generation isotonic force trajectories, similar those produced during dumbbell lifting, utilizing custom actuators. The...

A 40-MS/sec 10-bit pipelined analog to digital converter (ADC) with a 1.2 Vpp differential input signal is proposed. The implemented ADC consists of eight stages 1.5 bit/stage, one stage 2 error correction block, band-gap reference circuit & driver, and clock generator. bit/stage sub-ADC, (DAC), gain stage, the 2.0 only 2-bit sub-ADC. bootstrapped switch constant resistance proposed improve linearity switch. It reduces maximum VGS variation conventional by 67%. used in first instead...

본 논문에서는 저전압 고해상도 축차근사형 아날로그-디지털 변환기를 위한 시간-도메인 비교기를 제안한다. 제안하는 비교기는 클럭 피드-스루 보상회로를 포함한 전압제어지연 변환기, 시간 증폭기, 그리고 바이너리 위상 검출기로 구성된다. 작은 입력 부하 캐패시턴스를 가지며, 노이즈를 보상한다. 비교기의 특성을 분석하기 위해 다른 가지는 두 개의 1V 10-bit 200-kS/s 변환기가 0.18-<TEX>${\mu}m$</TEX> 1-poly 6-metal CMOS 공정에서 구현된다. 11.1kHz의 아날로그 입력신호에 대해 측정된 SNDR은 56.27 dB이며, 제안된 보상회로와 증폭기가 약 6 dB의 SNDR을 향상시킨다. 구현된 변환기의 전력소모와 면적은 각각 10.39 <TEX>${\mu}W$</TEX>와 0.126 mm2 이다. In this paper, a time-domain comparator is proposed for successive approximation...

본 논문에서는 회전익 비행체 개발과정에서 사용되는 다양한 해석데이터를 관리하기 위한 KHP - SDM 시스템 개발 및 개념설계를 다분야통합 최적설계 프레임워크 개발에 관해 기술하였다. KHP-SDM 상에 개발된 다분야 해석 모듈을 통합하고 KHP-SDM의 최적화 적용하여 RMDO 프레임워크를 구축하였다. 이용한 개념설계 결과 프레임워크가 성공적으로 구성되었음을 보여주었다. This paper dealt with the development of Framework for Multidisciplinary Design Optimization rotorcraft design concept and building process KHP(Korea Helicopter Project) SDM(Simulation Data Management) system to manage various analysis data, which are used in phase. RMDO(Rotorcraft...

A-SMGCS는 모든 기상조건에서 공항 이동지역 내 요구되는 안전수준을 확보하는 동시에 정해진 지상이동률을 유지하기 위하여 항공기와 차량에게 경로, 안내, 감시, 통제기능을 제공하는 시스템이다. 본 연구에서는 A-SMGCS 적합성 검증방안을 개발하기 위해 시스템 엔지니어링을 도입하였다. 운용개념을 통해 레벨 IV급 A-SMGCS에 대한 요구사항을 정의하였으며, 기능분석과 할당을 아키텍처와 규격을 도출하였다. 개발을 위한 WBS와 IMS를 수립하였으며, 마지막으로 시스템에 확인 및 검증을 CCL과 TEMP를 개발하였다. Advanced surface movement guidance and control system (A-SMGCS) is a providing routing, surveillance for the of aircraft vehicles in order to maintain predetermined rate under all weather conditions...

In this paper, we propose a hybrid platform for mobile broadcasting and telecommunication. This platform, the `Web-based smart DMB platform', targets devices with terrestrial Digital Multimedia Broadcasting (T-DMB) functionality. Due to success of phones, many video services via Internet have been developed telecommunication companies are trying enter market. The development originated idea that, in device era, TV must evolve be more attractive smarter than ever before. systems adopt...

This paper presents the design and control performance of a novel dynamic compliant-arm support with parallel elastic actuators that was developed to assist daily living activities those whose arms are compromised by muscular disease or aging process. The elastic-arm consists compliant mechanism combined passive active components for human interaction reach user’s desired positions. achievement these tasks requires impedance control, which can change virtual stiffness, damping coefficients,...