Understanding the inherent structure of manipulative hand movements is a critical step toward automatic recognition of manipulative hand movements and toward automatic planning of natural movements for dexterous robots. Manipulative hand movements involve coordinated movements of the digits to manipulate an object within the hand, and are classified as either simultaneous or sequential. Simulta...

vibration from the operation of industrial implements can be harmful to the human body. these implements, such as the power tiller or hand tractor often used to till rice in northern iran, can vibrate the entire body or one part, particularly the hands. in this research, the transmissibility and effects of vibration from a mitsubishi power tiller of 7.7 hp and 2400 rpm on the operator’s health ...

This study aimed to clarify the difference in hand grip power in elderly males and females. The subjects were 15 elderly males (mean age 65.6±2.5 yr, mean height 165.7±6.0 cm, mean mass 63.9±5.5kg) and 15 elderly females (mean age 65.0±2.6 yr, mean height 155.2±5.3 cm, mean mass 56.5±7.3kg). Peak velocity was measured by the dominant hand with loads of 30, 40 and 50% of maximum voluntary contra...

A preliminary analysis of the correlation between high resolution EEG and three dimensional (3D) hand motion trajectories is presented. The study involved assessing which EEG frequency components and cortical areas show the most significant correlation with hand motion trajectory towards five targets positioned in different locations in space. The time shift between time-power pattern of the se...

the dabuyids is a local dynasty who managed to dominate over an area known as padashwargar for more than a century. they came to power when on the one hand the sassanid empire was on the decline, and on the other hand the arab invasion had become irresistible. however, the dabuyids managed to take root in such circumstances and survive powerfully for a long time. the dabuyids even remained aliv...

This paper investigates the dynamic behavior of Gas Metal Arc Welding (GMAW) process for two types of power supplies –inverter and rectifier- for short circuit transfer mode. The large ripples on the rectifier power source are able to perturb the metal transfer mode. In this experimental work some operating points in the short circuit mode have been selected using an automatic pipeline welding ...

in this article, the linear array (with 20 elements in the horizontal orientation) of microstrip antenna is examined with horizontal polarization. the set includes three microstrip substrates. there is a power network in two lower substrates and microstrip patches in the upper substrate. excitation of patches has been done as coupled through the power network in two lower substrates. using the ...