The most common type of identification system today is RFID. RFID circuits are used as covered with plastic. With the increase in usage areas, it also on metal, wood, paper, and plastic product. In this study, behavior same circuit different surfaces was investigated. surface impedance signal reflection coefficients tag antennas were investigated based plastic, textile surfaces. According to re...

This study is related to the fluctuation theory of electromagnetic fields, charges, and currents. The three-dimensional system under consideration is a semi-infinite conductor, modeled by the jellium, in vacuum. In previous theoretical studies it was found that the correlation functions of the surface charge density on the conductor decay as the inverse cube of the distance at asymptotically la...

Piezoresistive array pressure sensors are widely used in orthopaedic research to determine contact stress distributions across articular joint surfaces. Experience with such sensors has shown there can be inaccuracies in how the sensor perceives applied load, depending on the material stiffnesses between which it is compressed experimentally, versus in calibration. A study was undertaken to qua...

Among alternatives to fossil fuels, H2 gas is considered to be one of the most promising energy resources owing to its advantages of being nonpolluting and abundant in nature. In particular, fuel cells are currently receiving much attention for utilization of H2 gas in the development of both stationary and mobile power generators. H2 gas, however, inevitably has some safety concerns owing to t...