The design and realization of graphene based wideband electromagnetic (EM) absorbing textiles are becoming primary interest. Hence, the development new conductive coatings to be cast onto commercial is crucial. In this article, we propose that conjugate outstanding EM properties at radiofrequency with low-weight, flexibility, cost-effectiveness, washability. With purpose, an innovative producti...

this paper is devoted to the study of determining optimal process mean in system production with the two markets for the sale of goods. in this paper, we developed an absorbing markov chain model in production systems where all items are inspected %100 for conformance with their specification limits. when the value of the quality characteristic of an item falls below a lower limit, the item is ...

Headphones and earphones have many extremely small holes or narrow slits; they use sound-absorbing or porous material (i.e., dampers) to suppress vibratory system resonance. The air viscosity in these acoustic paths greatly affects the acoustic properties. Simulation analyses such as the finite element method (FEM) therefore require knowledge of the material properties of sound-absorbing or por...

Military forces operating in urban environments are facing numerous challenges. One of them consists in being able to identify buildings material to support missions involving tactical breach or blast damage prediction. This paper reports on a method that combines both LIDAR and through-wall radar imagery to provide detailed information about a building front wall features and its construction ...

A thermally enhanced method for improving photoacoustic imaging depth and signal-to-noise (SNR) ratio is presented in this paper. Experimental results showed that the maximum imaging depth increased by 20% through raising the temperature of absorbing biotissues (ex-vivo beef muscle) uniformly from 37 to 43°C, and the SNR was increased by 8%. The parameters making up the Gruneisen constant were ...

In this paper, a metamaterial absorber with checkerboard patterned ITO (indium tin oxide) film as the surface is obtained by using flexible and optically transparent wave-absorbing material ITO–PET (polyethylene terephthalate), coding arrangement of two basic units based on APS-PSO (Array Pattern Synthesis -Particle Swarm Optimization) algorithm. The structure consists rectangular patch structu...

Poly(vinylidene fluoride) (PVDF) based composites loaded with 3 wt% of carbon black (CB), graphite (GF), and the hybrid CB/GF (1.5/1.5 wt%) were prepared by melt mixing tested as microwave absorbing material at X-band frequencies (8–12 GHz). The materials processed pressed 220°C into plates 20 × 0.1 cm3. Dielectric magnetic properties evaluated using wave-guide accessory to simulate reflectivit...

It is shown that thin mushroom layers (high-impedance surfaces realized as regular arrays of small patches at a small distance from a metal surface) can be used as radar-absorbing structures whose performance does not change with the incidence angle for TM-polarized waves. The key role of the vias connectors between the patches and the ground plane is explained, and potential performance demons...

Phytochrome that was induced by red irradiation in vivo to pellet with subcellular material and that was released from the pellet by removal of divalent cations exhibited altered characteristics. Compared to phytochrome extracted in a soluble red-absorbing form from etiolated tissue, pelleted and released phytochrome, which was also assayed in the red-absorbing form even though pelleted in the ...