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Previous many researches have confirmed that human adapt the position of digits to object attribute, for example, the shape of objects and center of mass (COM). Eight healthy subjects took part in the experiment (four females and four males, aged between 20 and 25 years), and they were righthanded. The goal of this research was to confirm the influence of object's vision and weight on digit placement...
The thumb and index finger are important digits to performed dexterous and complex manipulation of objects. However, the local muscle fatigue will induce the capacity of force production and impair the precision motor control of the thumb and index finger. This study focused on the exercise-induced local muscle fatigue influencing the COP (center of pressure) area, the SD and the PA (projection angle)...
Aimed at the problem of low reliability and low significance level in multi-target threat assessment, based on the advantage of Vise Kriterijumska Optimizacija I Kompromisno Resenje (VIKOR) method which can take maximizing group effect and minimize individual regret into account, setting reasonable decision-making mechanism coefficient, VIKOR is applied to the multi-target threat assessment problems...
The inter-digit coordination during precision grip was assessed using a recurrence-based phase synchronization (PS) analysis in this study. The PS across the normal forces of the thumb and index finger with respect to the contact surface serve as a critical dynamical strategy underlying precision grip. When both the thumb and index finger had reduced tactile sensitivity, the PS of Fz increased compared...
This study investigated the effect of tactile sensation on the fingertip center of pressure (COP) signals when the thumb and index finger interact with an object for stable precision grip. Thirty healthy subjects participated in the experiment. The tactile sensitivity was modulated by wrapping up the distal pads of the thumb and index finger with transparent polyethylene films. Subjects were instructed...
The purpose of this study is to investigate the effects of carpal tunnel syndrome on hand intrinsic muscle activities using surface electromyogram (sEMG) during precision grip. Six CTS patients and six age- and gender-matched healthy volunteers participated in the experiment. The subjects were instructed to stably grip an instrumented apparatus with their thumb and index finger for 80 s. The sEMG...
This paper presents a lowpass decoupling network (LDN) for a pair of strongly-coupled antennas working at the same frequency. Compared with the state-of-art decoupling techniques, the LDN has a simple circuit configuration. Moreover, it has less impact on the matching bandwidth. To demonstrate the concept, a fifth order LDN is designed and fabricated using LTCC technology to decouple a symmetric PIFA...
For ranked search in encrypted cloud data, order preserving encryption (OPE) is an efficient tool to encrypt relevance scores of the inverted index. When using deterministic OPE, the ciphertexts will reveal the distribution of relevance scores. Therefore, Wang et al. proposed a probabilistic OPE, called one-to-many OPE, for applications of searchable encryption, which can flatten the distribution...
In this work, based on least squares support vector machine regression, a model that characterizes the relationship between constituents of Baikal skullcap root and therapeutic index of anti-respiratory syncytial virus was established. The computational simulation showed that this model fits well with the experimental data, and validation experimental results also supported the theoretical predictions.
This study examined the fingertip force variability on the left and right hand during low-level sustained precision pinch with the thumb and index finger. Ten healthy, right-handed subjects were required to pinch a device with a stable force output at 5 N for 1 min. The pinch force was recorded for the right and left hand, separately. Visual feedback was provided for the first 30 s and removed for...
In this article, based on grey relational analysis method, relational polarity analysis for the anti-respiratory syncytial virus effect of compositions from Baikal skullcap root was studied. The compositions with reinforcement effect on the therapeutic index of anti-respiratory syncytial virus were found and ranked.
YAG: Ce3+, Gd3+ nano-phosphor were synthesized by glycothermal method. Red-shift of emission peak wavelength from 532 nm to 568 nm has been achieved as doping Gd3+ ions into the YAG:Ce3+ to substitute some Y3+ ions. White LED with good color-rendering-index of 86 was obtained by combining blue LED chip with (Y2.14Ce0.06Gd0.8)Al5O12 phosphor.
The limitation of the existing customer satisfaction evaluation methods was pointed out based on a comprehensive analysis of traditional methods. To resolve the problem, a multi-stage fuzzy evaluation was proposed and applied to passenger satisfaction evaluation. Furthermore, the way how to apply the method of fuzzy evaluation to passenger satisfaction evaluation was discussed based on deep research...
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