84 Result(s)
within
**quan Ren
Engineering
Biochemical Engineering
Biomaterials
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Article
Glass Sponge-inspired Auxetic Mechanical Metamaterials for Energy Absorption
The Auxetic Structure (AS) exhibits significant densification strain due to its concave cell architecture, functioning as an effective energy-absorbing metamaterial. However, its limited plateau stress hampers...
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Article
Design, Testing and Control of a Magnetorheological Damper for Knee Prostheses
This study aims to develop a magnetorheological (MR) damper for semi-active knee prostheses to restore the walking ability of transfemoral amputees. The core dimensions of the MR damper were determined via the...
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Article
Role of Multi-scale Hierarchical Structures in Regulating Wetting State and Wetting Properties of Structured Surfaces
Amplifying the intrinsic wettability of substrate material by changing the solid/liquid contact area is considered to be the main mechanism for controlling the wettability of rough or structured surfaces. Thro...
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Article
An Optimization System for Intent Recognition Based on an Improved KNN Algorithm with Minimal Feature Set for Powered Knee Prosthesis
In this article, a new optimization system that uses few features to recognize locomotion with high classification accuracy is proposed. The optimization system consists of three parts. First, the features of ...
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Article
Jumbo Bionic Trabecular Metal Acetabular Cups Improve Cup Stability During Acetabular Bone Defect Reconstruction: A Finite Element Analysis Study
The biomechanical effects of acetabular revision with jumbo cups are unclear. This study aimed to compare the biomechanical effects of bionic trabecular metal vs. titanium jumbo cups for the revision of acetabula...
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Open AccessIntrinsic Kinematics of the Tibiotalar and Subtalar Joints during Human Walking based on Dynamic Biplanar Fluoroscopy
Accurate knowledge of the kinematics of the in vivo Ankle Joint Complex (AJC) is critical for understanding the biomechanical function of the foot and assessing postoperative rehabilitation of ankle disorders,...
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Biological Vibration Dam** Strategies and Mechanisms
Excessive vibration in civil and mechanical systems can lead to structural damage or harmful noise. Structural vibration can be mitigated by reducing the energy of the vibration source or by isolating the exte...
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Open AccessFiber-dominated Soft Actuators Inspired by Plant Cell Walls and Skeletal Muscles
Morphing botanical tissues and animal muscles are all fiber-mediated composites, in which fibers play a passive and active role, respectively. Herein, inspired by the mechanism of fibers functioning in morphin...
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Open AccessDesign of a Flexible Bionic Ankle Prosthesis Based on Subject-specific Modeling of the Human Musculoskeletal System
A variety of prosthetic ankles have been successfully developed to reproduce the locomotor ability for lower limb amputees in daily lives. However, they have not been shown to sufficiently improve the natural ...
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Article
Open AccessBionic Step** Motors Driven by Piezoelectric Materials
By imitating the behavioral characteristics of some typical animals, researchers develop bionic step** motors to extend the working range of piezoelectric materials and utilize their high accuracy advantage ...
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Article
Rapid, Energy-saving Bioinspired Soft Switching Valve Embedded in Snap** Membrane Actuator
In nature, organisms widely use the interaction of muscle contraction and biological pipelines to form an efficient fluid control mechanism. Herein, a pneumatically powered, Bioinspired Soft Switching valve (B...
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Article
Open AccessBioinspired Multi-Metal Structures Produced via Direct Ink Writing
Bioinspired Multi-Metal Structures (MMSs) combine distinct properties of multiple materials, benefiting from improved properties and providing superior designs. Additive Manufacturing (AM) exhibits enormous ad...
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Open AccessBioinspired Strategies for Excellent Mechanical Properties of Composites
Develo** high-performance composite materials is of great significance as a strong support for high-end manufacturing. However, the design and optimization of composite materials lack a theoretical basis and...
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Article
Bending Resistance and Anisotropy of Basalt Fibers Laminate Composite with Bionic Helical Structure
The appendages of mantis shrimp often bear bending loads from different directions during the in the process of preying on prey with its grazing limb. Hence, it has excellent bending resistance and isotropy to...
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Article
Open AccessLoad-dependent Variable Gearing Mechanism of Muscle-like Soft Actuator
Pennate muscle is characterized by muscle fibers that are oriented at a certain angle (pennation angle) relative to the muscle’s line of action and rotation during contraction. This fiber rotation amplifies th...
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Article
Open AccessSmart Bionic Surfaces with Switchable Wettability and Applications
In order to satisfy the needs of different applications and more complex intelligent devices, smart control of surface wettability will be necessary and desirable, which gradually become a hot spot and focus i...
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Development of a 3D Printed Bipedal Robot: Towards Humanoid Research Platform to Study Human Musculoskeletal Biomechanics
The objective of this study is to develop a bio robot with a high degree of biomechanical fidelity to the human musculoskeletal system in order to investigate the biomechanical principles underlying human walk...
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Article
Optimum Anti-erosion Structures and Anti-erosion Mechanism for Rotatory Samples Inspired by Scorpion Armor of Parabuthus transvaalicus
Solid particle erosion on the material surfaces is a very common phenomenon in the industrial field, which greatly affects the efficiency, service life, and even poses a great threat to life safety. However, c...
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Article
The Effects of Electromagnetic Fields on Human Health: Recent Advances and Future
The potential of electromagnetic fields (EMFs) for disease treatment and health enhancement has been actively pursued over the recent decades. This review first provides a general introduction about natural EM...
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Article
Bio-inspired Superhydrophobic Self-healing Surfaces with Synergistic Anticorrosion Performance
The past decade has witnessed significant efforts in addressing the global metallic corrosion challenge, with a focus on avoiding or mitigating huge economic losses incurred by corrosion and on the development...
