A5072732937- Prosthetics and Rehabilitation Robotics
- Muscle activation and electromyography studies
- Stroke Rehabilitation and Recovery
- Gear and Bearing Dynamics Analysis
- Mechanical Engineering and Vibrations Research
- Mechanical Behavior of Composites
- Image Processing and 3D Reconstruction
- Textile materials and evaluations
- 3D Surveying and Cultural Heritage
- Functional Brain Connectivity Studies
- Ergonomics and Musculoskeletal Disorders
- Diabetic Foot Ulcer Assessment and Management
- Health, Environment, Cognitive Aging
- Lower Extremity Biomechanics and Pathologies
- Structural Analysis and Optimization
- Archaeological Research and Protection
- Mechanical stress and fatigue analysis
- Tribology and Lubrication Engineering
- Advanced Neuroimaging Techniques and Applications
- Gait Recognition and Analysis
Xi'an University of Technology
2021-2024
Background and Aims: Recent advances in brain-imaging techniques have enabled the identification of brain imaging-derived phenotypes (IDPs), representing physiological structure. Observational studies suggested a correlation between these IDPs stroke, confounded based on limited samples. To investigate causal relationship stroke its subtypes for an in-depth mechanistic comprehension their interplay, we conducted bidirectional two-sample Mendelian Randomization (MR) study leveraging...
In order to solve poor coordination between the exoskeleton and human leg, this article analyzed spatiotemporal characteristics of lower limb motion using data collection from walking gait experiments. According macro- micro-motion mechanisms knee joint, six configurations were proposed. Combined with analysis characteristics, mathematical models for kinematics dynamics established verified numerical simulation. Using human–machine coupling simulation experiments, different devices simulated...
The application of an effective and reliable foot type classification method is very important for judgment, injury risk assessment, correction. Therefore, this paper mainly aims to propose a new young people based on bitmap index (BI), compare it with the traditional footprint method, put forward analyze factors affecting classification. Thirty-one healthy volunteers were asked perform two types tests in order study plantar pressure distribution static dynamic conditions, first test full...
In order to reduce the impact of knee injury and energy consumption during exercise, an unpowered exoskeleton was proposed based on characteristics ergonomics human lower limb gait. The device is assisted by a double spring mechanism worn parallel joint. metabolic body reduced compensating for loss limbs negative work. At same time, elastic storage element simulated analyzed in ANSYS software, corresponding relationship between size unit strain determined, so as realize parameter matching...
In order to reduce the energy consumption of human daily movement without providing additional power, we considered biomechanical behavior knee during external impedance interactions. Based on theory sports biomechanics, combined with requirements human–machine coupling motion consistency and coordination, an unpowered exoskeleton-assisted device for joint is proposed in this paper. The effectiveness assisted was verified using gait experiments distributed plantar pressure tests three modes:...
<title>Abstract</title> In order to reduce the torque generated during plantar flexion of human ankle and alleviate leg muscle fatigue, a quasi-passive variable stiffness assisted exoskeleton was designed. By using pressure signals control electromagnetic clutch, energy storage release unit were achieved. Firstly, mechanism adjusts preload force assist spring through geometric structure, achieving non-linear joint output reducing consumption walking. Secondly, simulation model wearing...
The knitting principle of 3D braided gear was studied, and the dynamic model two-stage system established. fourth-order Runge-Kutta method used to numerically simulate characteristics common gear. results showed that fundamental frequency ω 1 static transmission error excitation had greatest effect on speed first-stage along meshing line. research shows has a large With reduction mass moment inertia, amplitude in low-frequency band increases. vibration resonance is studied by defining gain...
On the basis of analyzing movement law 3D circular braided yarn, three-cell model five-direction braiding composite material is established. By node position relationship in various cell models, calculation formulas angle, volume, fiber volume and content models are obtained. It found that there four different angles internal cells, cells gradually increase from inside to outside. The upper lower surface approximately equal. With length knuckles, each decrease, inner decrease greatly, while...
In order to evaluate the effectiveness of exoskeleton design, a detailed evaluation human biomechanics is necessary. this paper, an unpowered knee joint designed. A simplified 5-bar model lower limb used establish walking kinematics model, and change equation angle obtained. The curve obtained through Matlab simulation Visual 3D software. results are similar experiment, consistent with test walking. It shows that reasonable effective, conform process limbs. activation metabolism muscles in...
The system takes excavated cultural relics at archaeological sites during the excavation period as research object, and composes current situation of relic protection period. It proposes to build a 3D/2D model library based on 3D laser scanning imaging, data reconstruction, modelling, graphics conversion database; realise series digital conservation such accurate collection archival scientific management database, shorten cycle improve efficiency, provide theoretical basis practical guidance...