Yasutaka Nakashima

ORCID: 0000-0002-8909-0617
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About
Contact & Profiles
Research Areas
  • Modular Robots and Swarm Intelligence
  • Micro and Nano Robotics
  • Advanced Materials and Mechanics
  • Robot Manipulation and Learning
  • Total Knee Arthroplasty Outcomes
  • Bone and Joint Diseases
  • Spondyloarthritis Studies and Treatments
  • Soft Robotics and Applications
  • Cardiac Valve Diseases and Treatments
  • Electrical and Bioimpedance Tomography
  • Orthopaedic implants and arthroplasty
  • Rheumatoid Arthritis Research and Therapies

Kyushu University
2000-2025

Continuum robot arms that can access confined spaces are useful in many applications, such as invasive surgery, search and rescue, inspection. However, their reach is often limited because extension mechanism relies on elastic deformation or folding structures. To address this challenge, we propose a continuum with novel inspired by the impressive ability of woodpeckers to extend bend long tongues catch insects tree holes. The proposed change effective length from almost zero any moving...

10.1109/lra.2023.3331650 article EN IEEE Robotics and Automation Letters 2023-11-09

Bio-inspired multi-joint snake robots offer the advantages of terrain adaptability due to their limbless structure and high flexibility. However, a series dozens motor units in typical multiple-joint results heavy body hundreds watts power consumption. This paper presents joint-repositionable, inner-wireless robot that enables multi-joint-like locomotion using low-powered underactuated mechanism. The robot, consisting flexible passive links, can dynamically change its joint coupling...

10.48550/arxiv.2411.13916 preprint EN arXiv (Cornell University) 2024-11-21

We attempted to quantify periarticular bone atrophy from radiographs of the proximal phalanx in patients with rheumatoid arthritis (RA) by means National Institutes Health (NIH) Image computer program. The degree brightness or darkness four squares, each 20 × pixels, right third was measured using NIH Image, and mean value 400 pixels defined as brightness/darkness index (BDI). BDI used express volume. set at zero for an area complete 255 maximum brightness. coefficient variation our hospital...

10.1007/s101650070006 article EN Modern Rheumatology 2000-12-22
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