A basic study on quantitative evaluation of 3-dimensional foot contact with an inertial sensor for FES foot drop correction

2015 ◽  
Author(s):  
Maho Shiotani ◽  
Takashi Watanabe
Keyword(s):  
Quantitative Evaluation ◽  
Inertial Sensor ◽  
Foot Drop ◽  
Basic Study ◽  
3 Dimensional

scholarly journals Quantitative evaluation of local head malformations from 3 dimensional photography: application to craniosynostosis

2019 ◽  
Author(s):  
Liyun Tu ◽  
Gary F. Rogers ◽  
Marius George Linguraru ◽  
Antonio R. Porras ◽  
Albert Oh ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
3 Dimensional

Basic Study on Electro-Adhesive Surface Applying 3-Dimensional Micro Structures

2016 ◽  
Vol 10 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Soichiro Yamada ◽  
◽  
Ryo Koike ◽  
Shintaro Arano ◽  
Yasuhiro Kakinuma ◽  
...  
Keyword(s):  
Particle Distribution ◽  
Structure Design ◽  
Experimental Result ◽  
Electrical Field ◽  
Basic Study ◽  
3 Dimensional ◽  
Silicone Gel ◽  
Adhesive Surface ◽  
Adhesion Performance ◽  
Micro Structures

Electro Adhesive Gel (EAG) has the unique characteristic of changing its surface adhesive property with the intensity of the electrical field applied. This property makes EAG useful in applications to fixing devices and mechanical brakes. Although its adhesion performance depends on the distribution of the electro-rheological particles in the EAG, it is difficult to arrange the particle distribution uniformly in a wide area from the perspective of production process. In this study, a novel functional elastomer that has the same function as EAG is developed, Electro Adhesive Surface (EAS). In EAS, micro photolithography is used to fabricate strut pyramids distributed uniformly on a substrate, and then silicone gel is poured into the structure. When an electrical field is applied, the silicone gel rises to the tops of the pyramids formed by the struts, and adhesion occurs to an object on EAS. To determine a micro structure design for EAS, the fixing force was measured with various struts diameter and gaps. Experimental result shows that the larger struts diameter and the narrower gaps enhance the fixing force of EAS.

scholarly journals Inertial Sensor-Based Motion Analysis of Lower Limbs for Rehabilitation Treatments

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Tongyang Sun ◽  
Hua Li ◽  
Quanquan Liu ◽  
Lihong Duan ◽  
Meng Li ◽  
...  
Keyword(s):  
Motion Analysis ◽  
Quantitative Evaluation ◽  
Degrees Of Freedom ◽  
Subjective Experience ◽  
Inertial Sensors ◽  
Inertial Sensor ◽  
Lower Limbs ◽  
Analysis Method ◽  
Practical Application ◽  
Input Signals

The hemiplegic rehabilitation state diagnosing performed by therapists can be biased due to their subjective experience, which may deteriorate the rehabilitation effect. In order to improve this situation, a quantitative evaluation is proposed. Though many motion analysis systems are available, they are too complicated for practical application by therapists. In this paper, a method for detecting the motion of human lower limbs including all degrees of freedom (DOFs) via the inertial sensors is proposed, which permits analyzing the patient’s motion ability. This method is applicable to arbitrary walking directions and tracks of persons under study, and its results are unbiased, as compared to therapist qualitative estimations. Using the simplified mathematical model of a human body, the rotation angles for each lower limb joint are calculated from the input signals acquired by the inertial sensors. Finally, the rotation angle versus joint displacement curves are constructed, and the estimated values of joint motion angle and motion ability are obtained. The experimental verification of the proposed motion detection and analysis method was performed, which proved that it can efficiently detect the differences between motion behaviors of disabled and healthy persons and provide a reliable quantitative evaluation of the rehabilitation state.

The use of a single inertial sensor to estimate 3-dimensional ground reaction force during accelerative running tasks

2017 ◽  
Vol 61 ◽  
pp. 263-268 ◽  
Author(s):  
Reed D. Gurchiek ◽  
Ryan S. McGinnis ◽  
Alan R. Needle ◽  
Jeffrey M. McBride ◽  
Herman van Werkhoven
Keyword(s):  
Ground Reaction Force ◽  
Inertial Sensor ◽  
Reaction Force ◽  
3 Dimensional

scholarly journals Quantitative Evaluation of 3-dimensional Fruit Morphology and Its Applications to Genetic Analysis

2000 ◽  
Vol 20 (2) ◽  
pp. 131-141 ◽  
Author(s):  
Wei Ding ◽  
Hirohisa Nesumi ◽  
Masahiko Yamada ◽  
Yasushi Takano ◽  
Yasuo Ukai
Keyword(s):  
Genetic Analysis ◽  
Quantitative Evaluation ◽  
Fruit Morphology ◽  
3 Dimensional
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