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4,085 results
  • Cryo-EM structures capture the transport cycle of the P4-ATPase flippase. [Journal Article]
    Science 2019Hiraizumi M, Yamashita K, … Nureki O
  • In eukaryotic membranes, P4-ATPases mediate the translocation of phospholipids from the outer to inner leaflet and maintain lipid asymmetry, which is critical for membrane trafficking and signaling pathways. Here we report the cryo-EM structures of six distinct intermediates of the human ATP8A1-CDC50a hetero-complex, at 2.6-3.3 Å resolutions, elucidating lipid translocation cycle of this P4-ATPas…
  • Transparent Film-Type Vibrotactile Actuator Array and Its Haptic Rendering Using Beat Phenomenon. [Journal Article]
    Sensors (Basel) 2019; 19(16)Choi DS, Kim SY
  • The most important thing in a thin and soft haptic module with an electroactive polymer actuator array is to increase its vibrotactile amplitude and to create a variety of vibrotactile sensations. In this paper, we introduce a thin film-type electroactive polymer actuator array capable of stimulating two types of human mechanoreceptors simultaneously, and we present a haptic rendering method that…
  • Distributed Finite-Time Fault-Tolerant Containment Control for Multiple Unmanned Aerial Vehicles. [Journal Article]
    IEEE Trans Neural Netw Learn Syst 2019Yu Z, Liu Z, … Su CY
  • This paper investigates the distributed finite-time fault-tolerant containment control problem for multiple unmanned aerial vehicles (multi-UAVs) in the presence of actuator faults and input saturation. The distributed finite-time sliding-mode observer (SMO) is first developed to estimate the reference for each follower UAV. Then, based on the estimated knowledge, the distributed finite-time faul…
  • Research on Terrain Identification of the Smart Prosthetic Ankle by Fuzzy Logic. [Journal Article]
    IEEE Trans Neural Syst Rehabil Eng 2019Chang M, Kim K, Jeon D
  • This research suggests a fuzzy-logic based terrain identification method and the smart prosthetic ankle system, which automatically controls its ankle angle, based on the detected terrain environment, to assist comfortable gait performance of transtibial amputee. Suggested terrain identification method uses shank angle from three different stages of the stance phase in gait cycle (Foot-flat, Heel…
  • Real-Time Robust and Optimized Control of a 3D Overhead Crane System. [Journal Article]
    Sensors (Basel) 2019; 19(15)Khatamianfar A, Savkin AV
  • A new and advanced control system for three-dimensional (3D) overhead cranes is proposed in this study using state feedback control in discrete time to deliver high performance trajectory tracking with minimum load swings in high-speed motions. By adopting the independent joint control strategy, a new and simplified model is developed where the overhead crane actuators are used to design the cont…
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