1. Research Progress on Corrosion Resistance of Magnesium Alloys with Bio-inspired Water-repellent Properties: A Review

   • Jinkai Xu
   • Qianqian Cai
   • Huadong Yu

   OriginalPaper Open access 03 August 2021 Pages: 735 - 763

2. Review of Recent Progress in Robotic Knee Prosthesis Related Techniques: Structure, Actuation and Control

   • Yuanxi Sun
   • Hao Tang
   • Jun Luo

   OriginalPaper Open access 03 August 2021 Pages: 764 - 785

3. Stable Vertical Ladder Climbing with Rung Recognition for a Four-limbed Robot

   • Xiao Sun
   • Kenji Hashimoto
   • Atsuo Takanishi

   OriginalPaper 03 August 2021 Pages: 786 - 798

4. Magnetic Actuated Shape-memory Helical Microswimmers with Programmable Recovery Behaviors

   • Fu Zhao
   • Weibin Rong
   • Lining Sun

   OriginalPaper 03 August 2021 Pages: 799 - 811

5. A Novel Undulatory Propulsion Strategy for Underwater Robots

   • Qiuyang Li
   • Jinhua Zhang
   • Songzi Guo

   OriginalPaper 03 August 2021 Pages: 812 - 823

6. A Biomimetic Rotor-configuration Design for Optimal Aerodynamic Performance in Quadrotor Drone

   • Yi Li
   • Koichi Yonezawa
   • Hao Liu

   OriginalPaper 03 August 2021 Pages: 824 - 839

7. The Unique Strategies of Flight Initiation Adopted by Butterflies on Vertical Surfaces

   • Huan Shen
   • Aihong Ji
   • Qingfei Han

   OriginalPaper 03 August 2021 Pages: 840 - 856

8. Mechatronic Design of a Robot for Upper Limb Rehabilitation at Home

   • Elio Matteo Curcio
   • Giuseppe Carbone

   OriginalPaper Open access 03 August 2021 Pages: 857 - 871

9. A Human Active Lower Limb Model for Chinese Pedestrian Safety Evaluation

   • Fuhao Mo
   • Dian Luo
   • Donghua Zhou

   OriginalPaper 03 August 2021 Pages: 872 - 886

10. Dodecyl Mercaptan Functionalized Copper Mesh for Water Repellence and Oil-water Separation

    • Yanling Tian
    • Jiekai Feng
    • Faze Chen

    OriginalPaper Open access 03 August 2021 Pages: 887 - 899

11. 3D Bioprinted Skin Substitutes for Accelerated Wound Healing and Reduced Scar

    • Qin Lian
    • Tian Jiao
    • Dichen Li

    OriginalPaper 03 August 2021 Pages: 900 - 914

12. Magnetic Ganoderma Lucidum Spores (mGLS): A Novel Regulatable Targeted Drug Delivery System

    • Bin Han
    • Zhankun Weng
    • Zuobin Wang

    OriginalPaper 03 August 2021 Pages: 915 - 926

13. Reconstruction of Surface Porous PEEK Decorated with Strontium-doped Calcium Phosphate Coatings for Enhancing Osteogenic Activity

    • Chengcheng Liang
    • Xiong Xiong
    • Shuxin Qu

    OriginalPaper 03 August 2021 Pages: 927 - 943

14. Corrosion Properties of Ceramic-Based TiO₂ Films on Plasma Oxidized Ti6Al4V/316L Layered Implant Structured Manufactured by Selective Laser Melting

    • Hilmi Tekdir
    • Tuba Yetim
    • Ali Fatih Yetim

    OriginalPaper 03 August 2021 Pages: 944 - 957

15. The Method and Experiment Research on Down-stroke Abrasive Belt Grinding under Micro Feeding for Noise Reduction Surface

    • Ying Liu
    • Shayu Song
    • Suolang Jiahua

    OriginalPaper 03 August 2021 Pages: 958 - 973

16. Improvement of Deep Groove Ball Bearing’s Performance Using a Bionic Textured Inner Race

    • K. E. Ch. Vidyasagar
    • R. K. Pandey
    • Dinesh Kalyanasundaram

    OriginalPaper 03 August 2021 Pages: 974 - 990

17. Generalized Oppositional Moth Flame Optimization with Crossover Strategy: An Approach for Medical Diagnosis

    • Jianfu Xia
    • Hongliang Zhang
    • Zhifang Pan

    OriginalPaper Open access 03 August 2021 Pages: 991 - 1010